# FLORIDA DEPARTMENT OF ENVIRONMENTAL PROTECTION

Division of Environmental Assessment and Restoration, Bureau of Watershed Restoration



## CENTRAL DISTRICT • MIDDLE ST. JOHNS BASIN



# FINAL TMDL Report

Nutrient and Dissolved Oxygen TMDLs

for the Six Middle St. Johns River

Segments between the Inlet of Lake

Harney ( WBID 2964 A ) and St. Johns

River above Wekiva River ( WBID 2893C)

Xueqing Gao

December 7

, 2009

### ii

Florida Department of Environmental Protection 

# Executive Summary

This report estimates the total maximum daily load s (TMDL s ) for nutrients, including total nitrogen (TN)

and total phosphorus (TP)

, that can be discharged into the portion of the Middle St. Johns River from

Lake Harney to the confluence of the St. Johns River with the Wekiva River, without causing nutrient and

dissolved oxygen (DO ) impairments. This portion of the Middle St. Johns River contains six waterbody

segments uniquely identified with w ater b ody id entification numbers (WBIDs) : Lake Harney (WBID

2964A), St. Johns River Downstream of Lake Harney (WBID 2964), St. Johns River above Lake Jesup

(WBID 2893F), St. Johns River above Lake Monroe (WBID 2893E), Lake Monroe (WBID 2893D), and St.

Johns River above Wekiva River (WBID 2893C).

Using the methodology in the Impaired Surface Waters Rule (IWR) ( Rule 62

- 303, Florida Administra tive

Code [F.A.C.] ), the Florida Department of Environmental Protection (Department) verified that these

WBIDs were impaired for nutrients and DO

. The impairments were caused by excessive nutrients

discharged into these river segments. Based on Section 4 03.067 , Florida Statues (F.S.)

, nutrient and DO

TMDLs must be developed for these segments.

Establishing target nutrient concentrations is an important step in developing TMDLs. In this report, t he

target nutrient concentrations established for the two la kes (Lake Harney and Lake Monroe) were appl ied

to all the impaired river segments based on the assumption that, as river channels have lower water

residence time than lake s , nutrient concentrations that are sufficient to protect lake water quality should

b e sufficiently protective for the river segments. The nutrient targets were established using three

different methods , as follows: (1) determining the nutrient concentrations that will result in Trophic State

Index (TSI) value s of less than 60 in Lake Harney and Lake Monroe; (2) determining the nutrient

concentrations that will restore the sediment nutrient deposition rates previously determined as the level

under low anthropogenic impact s , based on paleolimnological studies ; and (3) determining the

recom mended TN and TP concentrations in published literature for reference lakes. The final target

nutrient concentrations, which are 0.07 milligrams per liter ( mg/L ) for TP and 1.18 mg/L for TN, are

median s of the recommended nutrient values obtained from the se three methods (0.060 to 0.073 mg/L for

TP and 1.11 to 1.22 mg/L for TN)

.

The target TN and TP loadings were estimated using the Hydrologic Simulation Program

– Fortran (HSPF)

Model set up and calibrated by the St. Johns River Water Management District (SJRWMD). This model

simulates pollutant loadings from pervious and impervious areas of the watershed through surface runoff,

interflow, and baseflow and includes the physical, chemical, and biological processes in receiving waters

that influence nutrient dy namics. The HSPF Model divides the watershed areas immediately adjacent to

the impaired waters into two watersheds (Lake Harney and Lake Monroe), which were further divided into

19 sub

- basins. Nutrient inputs from the Upper St. Johns River, Econlockhatchee River, and Lake Jesup

were included in the model as boundary conditions. The model also considers point source loadings

from the Sanford/North Wastewater Treatment Plant (WWTP) through direct discharge and reuse

, loadings from failed septic tanks, loa dings from atmospheric deposition directly onto the impaired river

segments, and loading attenuation from existing structural best management practices (BMPs)

. In

simulating the target nutrient loadings, the needed nutrient percent reduction established f or the Lake

Jesup TMDLs was applied to the discharge from the lake into the St. Johns River. Loadings from the

Upper St. Johns River and the Econlockhatchee River and point and nonpoint sources (anthropogenic

land use s ) from the watershed s immediately adj acent to the impaired waters were adjusted until the

nutrient concentrations in these impaired segments met the target nutrient concentrations. The final

percent reductions needed to achieve the target nutrient concentration in all 6 impaired river segmen ts

range from 31 to 33 percent for TP and 37 to 39 percent for TN.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection iii 

# Acknowledgments

This TMDL report was developed based on the Hydrologic Simulation Program

– Fortran (HSPF)

M odel created by the St. Johns River Water Management District (SJRWMD) . We deepl y

appreciate the help and efforts of Dr. Yanbing Jia (SJRWMD Engineering Division) in explaining

the model structure and assumptions. We also sincerely thank Dr. Jia and Dr. Xiaoqing Huang

for providing the background information and data necessary to develop this report. Our special

thanks also go to Dr. Sherry Brandt

- William s ( SJRWMD ’s Environmental Science Division ) for

all the stimulating discussions and suggestions on water quality target development. We

sincerely appreciate the kind help of May Lehmensiek, who provided a tour through the Middle

St. Johns River segments to help us better understand the structure and function of the system.

We also want to thank Jennifer Gihring (Watershed Planning and Coordination Section of the

Florida Department of Environmental Protection [ Department ])

. H er effective contract

management with BCI ( also thanks to the effort s of Dr. Chandy John, Gerold Morrison, and

other BCI staff) created large amount s of useful information on the system that were used to

develop the TMDL. We also thank Chris Ferraro from the Department’s Central District Office

and Michael Hatcher and Marc Harris from the Department’s Industrial Wastewater Section

. They provided valuable information and suggestions on the point source dischargers in the

basin. Last, but not least, we extend our appreciation to Christy Newsome and Janis Paulsen

, who prepared the maps for this report

. This TMDL report could not have be completed without

the generous help of all these individuals . We sincerely th ank them and hope to continue

working with them in our future TMDL development efforts.

Editorial assistance provided by : Jan Mandrup

- Poulsen and Linda Lord

For additional information on the watershed management approach and impaired waters

in the Middle St. Johns Basin, contact :

Samantha Budd

Florida Department of Environmental Protection

Bureau of Watershed Management

Watershed Planning and Coordination Section

2600 Blair Stone Road, Mail Station 3565

Tallahassee, FL 32399

- 2400

Email: samantha.budd@dep.s tate.fl.us

Phone: (850) 245

- 8418

Fax: (850) 245

– 8434

Access to all data used in the development of this report can be obtained by contacting : Xueqing Gao

Florida Department of Environmental Protection

Bureau of Watershed Management

Watershed Assessment S ection

2600 Blair Stone Road, Mail Station 3555

Tallahassee, FL 32399

- 2400

Email: xueqing.gao@dep.state.fl.us

Phone: (850) 245

– 8464

Fax: (850) 245

– 8434FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection iv 

# Table of Contents

**Chapter 1: INTRODUCTION**

**____________________________________________ 1** 

1.1 Purpose of Report

____________________________________________ 1

1.2 Identif ication of Waterbody

_____________________________________ 1

1.3 Background

_________________________________________________ 2

**Chapter 2: DESCRIPTION OF WATER QUALITY PROBLEM**

**__________________ 5** 

2.1 Statutory Requirements and Rulemaking History

___________________ 5

2.2 Information on Verified Impairment

______________________________ 5

**2.2.1 Nutrients** 

**_______________________________________________ 6** 

**2.2.2 Dissolved Oxygen**

**_______________________________________ 8** 

2.3 Seasonal and Spatial Variation of Nutrients and DO in the Impaired

Waterbodies

________________________________________________ 11

**Chapter 3. DESCRIPTION OF APPLICABLE WATER QUALITY STANDARDS**

**AND TARGETS**

**____________________________________________ 35** 

3.1 Classification of the Waterbody and Criteria Ap plicable to the

TMDL

_____________________________________________________ 35

3.2 Applicable Water Quality Standards and Numeric Water Quality

Target

_____________________________________________________ 35

**3.2.1 Interpretation of Narrative Nutrient Criterion**

**________________ 35** 

**3.2.2 Dissolved Oxygen**

**______________________________________ 49** 

**Chapter 4: ASSESSMENT OF SOURCES**

**________________________________ 56** 

4.1 Types of Sources

____________________________________________ 56

4.2 Potential Sources of Pollutants in the Middle St. Johns River Basin

__ 56

**4.2.1 Point Sources**

**__________________________________________ 56** 

4.2.1.1 Wastewater Point Sources

______________________________ 56

4.2.1.2 Municipal Separate Storm Sewer System Permittees

________ 59



## 4.2.2 Nonpoint Sources

**______________________________________ 61** 

4.2.2.1 Basin Delineation and Boundary Condition

________________ 63

4.2.2.2 Land Uses

____________________________________________ 63

4.2.2.3 Estimated Pollutant Loadings from Septic Tanks

___________ 68

4.2.2.4 Pollutant Loadings through Ground Water

_________________ 71

4.2.2.5 Pollutant Loadings through Direct Atmospheric

Deposition onto the Receiving Waters

____________________ 73

4.2.2.6 Attenua tion of Pollutant Loads by BMPs

__________________ 73FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection v 4.2.2.7 Rainfall and Other Meteorological Data

____________________ 76

4.2.2.8 Model Calibration

______________________________________ 77

4.2.2.9 Summary of Pollutant Loadings from Point and Nonpoint

Sources Contributing to the Impaired Middle St. Johns

River Segments

_______________________________________ 88



## Chapt **er 5: DETERMINATION OF ASSIMILATIVE CAPACITY**

**________________ 100** 

5.1 Overall Approach

___________________________________________ 100

**Chapter 6: DETERMINATION OF THE TMDL**

**_____________________________ 107** 

6.1 Expression and Allocation of the TMDL

_________________________ 107

6.2 Load Allocation

____________________________________________ 109

6. 3 Wasteload Allocation

________________________________________ 110

**6.3.1 NPDES Wastewater Discharges**

**__________________________ 110** 

**6.3.2 NPDES Stormwater Discharges**

**__________________________ 110** 

6.4 Margin of Safety

____________________________________________ 110

**Chapter 7: TMDL IMPLEMENTATION** 

**__________________________________ 111** 

7.1 Basin Management Ac tion Plan

_______________________________ 111

7.2 Other TMDL Implementation Tools

_____________________________ 112

**References**

**________________________________________________________ 113** 

**Appendices**

**________________________________________________________ 116** 

Appendix A: Background Information on Federal and State Stormwater

Programs

_________________________________________________ 116

Appendix B: HSPF Model U CI File from the SJRWMD

________________ 117

Appendix C: HSPF Model Land Use Classification versus FLUCCS

Code

_____________________________________________________ 275

Appendix D: Response from th e Department to Comments from the

SJRWMD on the DO and Nutrient TMDLs for the Main Stem of the

Middle St. Johns River

______________________________________ 277

Appendix E: Response from the Department to Seminole County

Comments on the DO and Nutrient TMDLs for the Main Stem of the

Middle St. Johns River

______________________________________ 283

Appendix F: Response from the Department to FDOT Comments from

on the DO and Nutrient TMDLs for the Main Stem of the Middle St.

Johns River

_______________________________________________ 292FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection vi 

# List of Tables

**Table 1.1. WBIDs and Parameters Addressed in This TMDL Report** 

**_________ 2** 

**Table 2.1. Verified Impaired Waterbody Segments in the Middle St.** 

**Johns River**

**______________________________________________ 5** 

**Table 2.2. Summary of Annual Average Chl**  **a Concentrations for St.** 

**Johns River above Lake Monroe (WBID 2893E) and St.**

**Johns River above Wekiva River (WBID 2893C), 1996**

**–**

**2007**

**_______ 7** 

**Table 2.3a. Summary of DO Monitoring Data in the Verified Period for** 

**Lake Harney (WBID 2964A)**

**__________________________________ 8** 

**Table 2.3b. Summary of DO Monitoring Data in the Verified Period for** 

**St. Johns River Downstream of Lake Harney (WBID 2974)** 

**________ 9** 

**Table 2.3c. Summary of DO Monitoring Data in the Verified Period for** 

**St. Johns River above Lake Jesup (WBID 2893F)**

**________________ 9** 

**Table 2.3d. Summary of DO Monitoring Data in the Verified Perio**  **d for**

**St. Johns River above Lake Monroe (WBID 2893E)**

**_____________ 10** 

**Table 2.3e. Summary of DO Monitoring Data in the Verified Period for** 

**Lake Monroe (WBID 2893D)**

**________________________________ 10** 

**Table 2.3f. Summary of DO Monitoring Data**  **in the Verified Period for**

**St. Johns River above Wekiva River (WBID 2893C)**

**_____________ 11** 

**Table 2.4. Threshold Values for Identifying Causative Pollutants by** 

**Waterbody Type**

**__________________________________________ 11** 

**Table 2.5a. Statistical Distrib**  **ution of Chl a**  **Concentrations in the**

**Impaired Middle St. Johns Segments**

**________________________ 26** 

**Table 2.5b. Statistical Distribution of DO Concentrations in the Impaired** 

**Middle St. Johns Segments**

**________________________________ 27** 

**Table 2.5c. Statist**  **ical Distribution of TN Concentrations in the Impaired**

**Middle St. Johns Segments**

**________________________________ 28** 

**Table 2.5d. Statistical Distribution of TP Concentrations in the Impaired** 

**Middle St. Johns Segments**

**________________________________ 29** 

**Table 3.1**

**. Comparison of Characteristics of Lake Harney and Lake** 

**Monroe**

**_________________________________________________ 40** 

**Table 3.2. Ratio of Lake Jesup Outflow to the Main Stem Flow of the** 

**St. Johns River**

**___________________________________________ 42** 

**Table 3.3. TP Sediment Accumulation Rate for Low** 

**- Impact and** 

**Existing Conditions**

**_______________________________________ 46** 

**Table 3.4. Summary of Phosphorus/Nitrogen Concentrations (μg/L)** 

**Suggested as Potential Criteria for Five Different Lake**

**Classes in Florida**

**________________________________________ 48** 

**Table 3.5. Sum**  **mary of Nutrient Targets**

**_______________________________ 49** FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection vii **Table 3.6. Target Nutrient and Achievable Chl**  **a Concentrations (TSI)** 

**for Impaired Middle St. Johns River Segments**

**_________________ 49** 

**Table 4.1. Annual TN, TP, and BOD Loadings from the**  **Sanford/North**

**WWTF**

**__________________________________________________ 59** 

**Table 4.2. MS4 Permittees Affected by TMDLs in the Middle St. Johns** 

**River Basin**

**______________________________________________ 61** 

**Table 4.3a. Land Use Distribution in the Lake Harney Basin to WBIDS** 

**2964, 2964A, and 2893F**

**____________________________________ 66** 

**Table 4.3b. Land Use Distribution in the Lake Monroe Basin to WBIDs** 

**2893E, 2893D, and 2893C**

**__________________________________ 66** 

**Table 4.4a. Percent DCIA of Different Land Use Classes in the Lake** 

**Harney Basin Draining to WBIDs 2964, 2964A, and 2893F**

**_______ 67** 

**Table 4.4b. Percent DCIA of Different Land Use Classes in the Lake** 

**Monroe Basin Draining to WBIDs 2893E, 2893D, and 2893C**

**______ 68** 

**Table 4.5. Pollutant Concentrations of Failing Septic Tank Effluent** 

**________ 69** 

**Table 4.6a. Acreages of Different Land Uses Served with BMPs in the** 

**Lake Harney Basin (WBIDs 2964A, 2964, and 2893F)**

**____________ 74** 

**Table 4.6b. Acreages of Different Land Uses Serv**  **ed with BMPs in the**

**Lake Monroe Basin (WBIDs 2893E, 2893D, 2893F)**

**______________ 74** 

**Table 4.7. Pollutant Removal Efficiencies Used in the HSPF Model** 

**(percent)**

**________________________________________________ 76** 

**Table 4.8. Annual Rainfall (inches) for the Lake Harney and Lake** 

**Monroe Basins for the Period of Record, 1995**

**–**

**2006**

**____________ 76** 

**Table 4.9. Major Weather Stations in or near the Econlockhatchee** 

**River Watershed**

**__________________________________________ 77** 

**Table 4.10. Water Quality Stations and Thei**  **r Periods of Record Used**

**for Water Quality Calibrations**

**______________________________ 82** 

**Table 4.11. Water Balance (ac** 

**- ft/yr) for the Impaired Middle St. Johns** 

**River Segments**

**__________________________________________ 90** 

**Table 4.12. TN Mass Balance (lbs/yr) for Impair**  **ed Middle St. Johns**

**River Segments**

**__________________________________________ 92** 

**Table 4.13. TP Mass Balance (lbs/yr) for Impaired Middle St. Johns** 

**River Segments**

**__________________________________________ 94** 

**Table 4.14. Summary of Water Balance (ac** 

**- ft/yr) for Impaired Middle St.** 

**J**

**ohns River Segments**

**____________________________________ 96** 

**Table 4.15. Summary of TN Mass Balance (lbs/yr) for Impaired Middle** 

**St. Johns River Segments**

**__________________________________ 97** 

**Table 4.16. Summary of TP Mass Balance (lbs/yr) for Impaired Middle** 

**St. Johns River Segments** 

**__________________________________ 98** 

**Table 4.17. Summary of Relative Contributions of Flow and TN and TP** 

**Loadings from Different Sources**

**____________________________ 99** FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection viii **Table 5.1. TN Target Loads (lbs/yr) from Different Sources** 

**______________ 101** 

**Table 5.2. TP Target Loads (lbs/yr) from Different Sources** 

**______________ 103** 

**Table 5.3. Comparison of Existing and Target Loadings TN and TP** 

**Loadings from Nonpoint Sources**

**__________________________ 106** 

**Table 6.1. TMDL**  **Components for Nutrient**

**- Impaired Segments of the** 

**Middle St. Johns River**

**___________________________________ 108** 

**Table 6.2. TMDL Daily Load for Nutrient** 

**- Impaired Segments of the** 

**Middle St. Johns River**

**___________________________________ 108** 

**Table 6.3. Required Percent**  **Reductions of TN and TP Loads, by WBID,**

**To Achieve Restoration Targets (Excluding Atmospheric**

**Deposition)**

**_____________________________________________ 109** FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection ix 

# List of Figures

**Figure 1.1. General Location of the Impaired Middle St. Johns River** 

**Segm ents in the Middle St. Johns Basin and Major** 

**Hydrologic and Geopolitical Features in the Area**

**_______________ 3** 

**Figure 1.2. Major Tributaries that Discharge into the Impaired Middle** 

**St. Johns River Segments**

**___________________________________ 4** 

**Fi**

**gures 2.1a, b. Chla and DO Concentrations of Lake Harney (WBID 2964A)** 

**______ 13** 

**Figures 2.1c, d. TN and TP Concentrations of Lake Harney (WBID 2964A)** 

**________ 14** 

**Figures 2.2a, b. Chl**  **a and DO Concentrations of St.**  **Johns River Downstream**

**of Lake Harney (WBID 2964)**

**________________________________ 15** 

**Figures 2.2c, d. TN and TP Concentrations of St. Johns River Downstream** 

**of Lake Harney (WBID 2964)**

**________________________________ 16** 

**Figures 2.3a, b. Chla and DO Concentrations of St. Johns River above Lake** 

**Jesup (WBID 2893F)**

**______________________________________ 17** 

**Figures 2.3c, d. TN and TP Concentrations of St. Johns River above Lake** 

**Jesup (WBID 2893F)**

**______________________________________ 18** 

**Figures 2.4a, b. Chla and DO Concentrations of**  **St. Johns River above Lake**

**Monroe (WBID 2893E)**

**_____________________________________ 19** 

**Figures 2.4c, d. TN and TP Concentrations of St. Johns River above Lake** 

**Monroe (WBID 2893E)**

**_____________________________________ 20** 

**Figures 2.5a, b. Chl**  **a and DO Concentrations of Lak**  **e Monroe (WBID 2893D)**

**_____ 21** 

**Figures 2.5c, d. TN and TP Concentrations of Lake Monroe (WBID 2893D)** 

**_______ 22** 

**Figures 2.6a, b. Chl**  **a and DO Concentrations of St. Johns River above** 

**Wekiva River (WBID 2893C)**

**________________________________ 23** 

**Figures 2.6c, d. TN and TP Concentrations of St. Johns River above Wekiva** 

**River (WBID 2893C)**

**_______________________________________ 24** 

**Figure 2.7a. Distribution of Monthly Average Chl**  **a Concentrations in the** 

**Impaired Middle St. Johns River Segments**

**___________________ 30** 

**Figure 2.7b. Distribution of Monthly Average DO Concentrations in the** 

**Impaired Middle St. Johns River Segments**

**___________________ 31** 

**Figure 2.7c. Distribution of Monthly Average TN Concentrations in**  **the**

**Impaired Middle St. Johns River Segments**

**___________________ 32** 

**Figure 2.7d. Distribution of Monthly Average TP Concentrations in the** 

**Impaired Middle St. Johns River Segments**

**___________________ 33** 

**Figure 3.1. Functional Relationship between Chl**  **a and TP** 

**Concentrations in River Segments Upstream and**

**Downstream of the Lake Jesup Outlet**

**________________________ 38** FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection x **Figure 3.2. Functional Relationship between Chl**  **a and TN** 

**Concentrations in River Segments Upstream and**

**Downstream of the Lake Jesup Confluence** 

**___________________ 38** 

**Figure 3.3. Location of USGS Gaging Stations Used in Calculating the** 

**Long**

**- Term Flow Ratio between Lake Jesup Flow and Flow** 

**through the Main Stem of the St. Johns River around Lake**

**Jesup**

**___________________________________________________ 43** 

**Figure 3.4. Correlation between Annual Average TN and TP** 

**Concentrations for Lake Monroe**

**____________________________ 47** 

**Figures 3.5a, b. Functional Relationship between DO and TP Concentrations** 

**in River Segments Upstream (a) and Downstream (b) of the**

**Lake Jesup Confluence**

**____________________________________ 51** 

**Figures 3.6a, b. Functional Relationship between DO and TN Concentrations** 

**in River Segments Upstream (a) and Downstream (b) of the**

**Lake Jesup Confluence**

**____________________________________ 53** 

**Figures 3.7a, b. Functional Relationship between DO and Color in River** 

**Segments Upstream (a) and Downstream (b) of the Lake**

**Jesup Confluence**

**________________________________________ 54** 

**Figures 3.8a, b, c. Correlation between BOD and Chla Concentrations in River** 

**Segme nts Downstream (a) and Upstream (b) of the Lake** 

**Jesup Outlet and for a Combined Dataset from both**

**Upstream and Downstream Segments (c)**

**_____________________ 55** 

**Figure 4.1. NPDES** 

**- Permitted Facilities Located in the Watersheds** 

**Discharging to the Impa ired Middle St. Johns River** 

**Segments**

**_______________________________________________ 57** 

**Figure 4.2. HSPF Model Basin and Sub** 

**- basin Delineations and Flow** 

**Direction**

**________________________________________________ 64** 

**Figure 4.3. Land Use Distribution in the HSPF Model Domain** 

**______________ 65** 

**Figure 4.4. Sub** 

**- basins to Which Direct Pipe Discharges from Septic** 

**Tanks Were Assigned**

**_____________________________________ 70** 

**Figure 4.5. Locations of Gemini Springs and Green Springs** 

**_______________ 72** 

**Figure 4.6. Spatial Distribution of BMPs in the HSPF Model Domain** 

**________ 75** 

**Figure 4.7. Location of USGS Stations in the HSPF Model Domain** 

**__________ 79** 

**Figures 4.8a, b, c. Flow Calibration Results for USGS Gage 02234500 (St.** 

**Johns River near Sanford, FL)**

**______________________________ 80** 

**Figures 4.9a, b, c. Flow Calibration Results for USGS Gage 02234100 (Deep** 

**Creek Near Osteen, FL)**

**____________________________________ 81** 

**Figure 4.10. Locations of Water Quality Stations Used for the Water** 

**Quality Cali bration** 

**________________________________________ 83** 

**Figures 4.11a, b. TN (a) and TP (b) Calibration Results for Lake Harney (WBID** 

**2964A)**

**__________________________________________________ 84** FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection xi **Figures 4.12a, b. TN (a) and TP (b) Calibration Results for St. Johns River** 

**above Lake Jesup (WBIDs 2964 and 2893F)**

**___________________ 85** 

**Figures 4.13a, b. TN (a) and TP (b) Calibration Results for St. Johns River** 

**above Lake Monroe and Lake Monroe (WBIDs 2893E and**

**2893D)**

**__________________________________________________ 86** 

**Figures 4.14a, b. TN (a) and TP (b) Calibration Results for St. Johns River** 

**above Wekiva River (WBID 2893C)**

**___________________________ 87** FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection xii 

# Websites

**Florida Department of Environmental Protection,**

**Bureau of Watershed Management**

Total Maximum Daily Load s Program

http://www.dep.state.fl.us/water/tmdl/index.htm

Identification of Impaired Surface Waters Rule

http://www.dep.state.fl.us/legal/Rules/sh ared/62

- 303/62

- 303.pdf

Florida STORET Program

http://www.dep.state.fl.us/water/storet/index.htm

2008 305(b) Report

http://www.dep.state.fl.us/water/docs/2008_Integrated_Report.pdf

Criteria for Surface Water Quality Classifications

http://www.dep.state.fl.us/water/wqssp/classes.htm

Basin Status Report : Middle St. Johns

http://www.dep.state.fl.us/water/basin411/sj_middle/status.htm

Water Quality Assessment Report : Middle St. Johns

http://www.dep.state.fl.us/water/basin411/sj_middle/assessment.htm



# U.S. Environmental Protection Agency

Region 4: Total Maximum Daily Loads in Florida

http://www.epa.gov/region4/water/tmdl/florida/

National STORET Program

http://www.epa.gov/storet/FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 1 

# Chapter 1: INTRODUCTION

1.1 Purpose of Report

This report presents the nutrient and dissolved oxyge n (DO) Total Maximum Daily Load s

(TMDL s ) for six waterbodies in the Middle St. Johns Basin: four segments of the Middle St.

Johns River located between the inlet of Lake Harney and the confluence of the Wekiva River

and St. Johns River , a s well as Lakes Harney and Monroe. Th ese waters were verified as

impaired for nutrients and low dissolved oxygen (DO) due t o elevated chlorophyll a (c hl a ) and

depressed DO concentrations , as verified through water quality assessments

. The y were

added to the Verified List of impaired waters for the Middle St. Johns Basin by Secretarial Order

on May 19, 2009

. The purpose of the TMDL s is to establish the allowable loadings of nutrients

to the Middle St. Johns River segments that would restore the se waterbodies such that the y

meet their applicable water quality criteri a for nutrients and DO

.



## 1.2 Identification of Waterbody

The waterbodies included in this TMDL report are the main stem segments of the Middle St.

Johns River located between the inlet of Lake Harney and the co nfluence of the St. Johns River

with the Wekiva River. Th is portion of the St. Johns River runs southeast to northwest for about

33 miles before it drain s into the Lake George watershed north of the Wekiva River ’s mouth

. The river segments receive dischar ge s from the Upper St. Johns River ( which drains parts of

Brevard County ) and also from several major tributaries

, including the Econlockhatchee River

, Deep Creek, and Lake Jesup. These tributaries drain a total of about 771,000 acres of land in

Lake, Volusia, Seminole, and Orange Counties, and

, to a less er extent, Marion and Brevard

Counties.

T wo major lakes, Lake Monroe and Lake Harney, are also among the impaired segments of the

M iddle St. Johns main stem. I nterstate 4 ( I-4) runs in a south

- north dir ection across the outlet of

Lake Monroe, and State Road 46 ( SR

- 46 ) runs along the southern shoreline s of Lake Monroe

and Lake Harney. Major municipalities located in the area include the c ities of Sanford and

Lake Monroe, which are located immediately sou th of Lake Monroe

, and the c ities of Deltona,

De B ary, and Enterprise, which are located north of Lake Monroe

.

Rapid growth in the watershed s of the Middle St. Johns River is one of the major factors

contribut ing to the deterioration of water quality in this portion of the St. Johns River, especially

the segments downstream of Lake Jesup, including Lake Monroe. According to the Surface

Water Improvement and Management (SWIM) Plan for the Middle St. Johns d eveloped by the

St. Johns River Water Management D istrict (SJRWMD ) ( 200 2 ), the L ake Monroe area is heavily

developed and is in the location with the highest growth potential in Seminole County. A large

amount of acreage in the I

- 4/ SR- 46 corridor is designated as higher intensity planned

development that allows industrial, office, commercial, and multifamily developments. The

southern shoreline of Lake Monroe is seawalled

, and a portion of SR

- 17/92 is immediately

adjacent to the seawall, but t here is no treatment for road runoff in this area. In addition

, DeBary and Deltona contain extensive residential developments

.

Another heavily developed area that may significantly impact water quality in the Middle St.

Johns River downstream of Lake Jesup is the Lake Jesup watershed . South of Lake Jesup, the

munic ipalities of Longwood, Winter Springs, Oviedo, Casselberry, Maitland, Eatonville, WinterFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 2 Park, and Orlando lie partly or wholly in the Lake Jesup watershed

, and are all heavily

developed. It is estimated that by 2010, there will be close to 2 million peop le living in the

vicinity of Lake Jesup. E ffective control of the pollutant loading from these areas will not only

improve water quality in Lake Jesup, but will also improve water quality in the Middle St. Johns

River downstream of the lake

. Figure 1.1 s hows the general location of the Middle St. Johns

River segments included in this TMDL report. Figure 1.2 shows the major tributaries that

discharge into these segments.

For assessment purposes, the Department has divided the Middle St. Johns Basin into water

assessment polygons with a unique w ater b ody id entification (WBID) number for each

watershed or stream reach. This TMDL report addresses nutrient and DO impairments in the

WBIDs that are part of the main stem of the Middle St. Johns River

. Table 1. 1 summarizes

the se WBIDs

, from upstream to downstream, and the parameters of concern for each segment.

Table 1.1

. WBIDs and Parameters Addressed in This TMDL Report

WBID Waterbody Name Parameters of Concern

2964A Lake Harney DO and Nutrients

2964 St. Jo hns River Downstream of Lake Harney DO

2893F St. Johns River above Lake Jesup DO

2893E St. Johns River above Lake Monroe DO and Nutrients

2893D Lake Monroe DO and Nutrients

2893 C St. Johns River above Wekiva River DO and Nutrients



## 1.3 Background

T his report was developed as part of the Department’s watershed management approach for

restoring and protecting state waters and addressing TMDL Program requirements. The

watershed approach, which is implemented using a cyclical management process that ro tates

through the state’s 52 river basins over a 5

- year cycle , provides a framework for implementing

the TMDL Program

– related requirements of the 1972 federal Clean Water Act and the Florida

Watershed Restoration Act ( FWRA).

A TMDL represents the maximum amount of a given pollutant that a waterbody can assimilate

and still meet water quality standards, including its applicable water quality criteria and its

designated uses. TMDLs are developed for waterbodies that are verified as not meeting their

water quality standards, and provide important water quality restoration goals that will guide

restoration activities.

This TMDL report will be followed by the development and implementation of a restoration plan

to reduce the amount of nutrients that caused the verified impairment in the Middle St. Johns

River. These activities will depend heavily on the active participation of the SJRWMD, local

governments, business and other stakeholders. The Department will work with these

organizations and individuals to undertake or continue reductions in the discharge of pollutants

and achieve the established TMDLs for impaired waterbodies.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 3 Figure 1.1

. General Location of the Impaired Middle St. Johns River Segments in

the Middle St. Johns Basin and Major Hydrologic and Geopolitical

Features in the AreaFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 4 Figure 1.2

. Major Tributaries t hat Discharge into the Impaired

Middle St. Johns River SegmentsFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 5 

# Chapter 2: DESCRIPTION OF WATER QUALITY

PROBLEM

2.1 Statutory Requirements and Rule m aking History

Section 303(d) of the Clean Water Act requires states to submit to the U.S. Environmental

Protection Agency ( EPA ) a list of surface waters that do not meet applicable water quality

standards (impaired waters) and establish a TMDL for each pollutant source in each of these

i mpaired waters on a schedule. The Department has developed these lists, commonly referred

to as 303(d) lists, since 1992. The list of impaired waters in each basin is also required by the

Florida Watershed Restoration Act ( FWRA ) ( Subsection 403.067[4] , F lorida Statutes [F.S.]), and

the list is amended annually to include updates for each basin statewide.

Florida’s 1998 303(d) list included 22 waterbodies in the Middle St. Johns Basin. However, the

FWRA (Section 403.067, F.S.) stated that all previous Florida 303(d) lists were for planning

purposes only and directed the Department to develop, and adopt by rule, a new science

- based

methodology to identify impaired waters. After a long rulemaking process, the Environmental

Regulation Commission adopted the new methodology as Rule 62

- 303, Florida Administrative

Code (F.A.C.) (Identification of Impaired Surface Waters Rule, or IWR), in April 2001 ; the rule

was amended in 2006 and 2007. The list of waters for which impairments have been verified

using the meth odology in the IWR is referred to as the Verified List.



## 2.2 Information on Verified Impairment

The Department used the IWR to assess water quality impairments in the Middle St. Johns

Basin and verified the nutrient and/or DO impairments for the main stem segments of the Middle

St. Johns River ( Table 2.1 ).

Table 2.1. Verified I mpaired W aterbody S egments in the Middle St. Johns River

WBID Waterbody Segment Parameters of Concern

2964A Lake Harney DO and Nutrients

2964 St. Johns River Downstream of Lake Ha rney DO

2893F St. Johns River above Lake Jesup DO

2893E St. Johns River above Lake Monroe DO and Nutrients

2893D Lake Monroe DO and Nutrients

2893C St. Johns River above Wekiva River DO and NutrientsFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 6 

## 2.2.1 Nutrients

The following four waterbodies

— Lake Harney (WBID 2964A), St. Johns River above Lake

Monroe (WBID 2893E), Lake Monroe (WBID 2893D), and St. Johns River above Wekiva River

(WBID 2893C)

— were verified impaired for nutrients ( Table 2.2 lists the data used for verifying

the nutrient impairme nts):

**• St. Johns River above Lake Monroe (WBID 2893E)** 

**.** This segment was listed

for nutrient impairment because, during the verified period (January 1, 2001

, through June 30, 2008) of the Cycle 2 assessment conducted by the Department

from 2008 to 2009

, t he annual average chl a concentration in 2001, 2002, and

2007 exceeded the threshold of 20 micrograms per liter ( **μ**

g/L ) defined in the IWR

for river nutrient assessment ( **Table 2.1** ). The Department also verified n utrient

impairment for the WBID during the th e Cycle 1 assessment conducted from 2003

to 2004. Phytoplankton communities in th is segment were considered co

- limited

by both nitrogen and phosphorus

, based on a median total nitrogen /

total

phosphorus ( TN/ TP ) ratio of 17 during the Cycle 2 verified perio d.

**• St. Johns River above Wekiva River (WBID 2893C)** 

**.** For this segment , th e chla

data for the Cycle 2 verified period were only sufficient to calculate the annual

average concentration for 2007

, and it did not exceed the 20 **μ** g/L threshold.

However, the WBID was verified impaired for nutrient s in Cycle 1, and the Cycle 2

assessment did not show sufficient evidence that the earlier determination of

impairment sh ould be reversed. Therefore, the WBID was considered still

impair ed for nutrient s even though the single annual average chla concentration

during the Cycle 1 verified period did not exceed the assessment threshold

. Phytoplankton communities were considered co

- limited by nitrogen and

phosphorus based on a median TN/TP ratio of 18 during the Cycle 2 verified

period.

**• Lake Monroe.**  The major index used by the Department for lake nutrient

assessment is the Trophic State Index (TSI), which has a 0 to 100 scale and is

calculated based on chla , TN, and TP concentrations. The I WR requires that if the

mean color of a given lake is lower than or equal to 40 platinum cobalt unit s

(PCU s)

, an annual average TSI of 40 should be used as the assessment

threshold. If the mean color is higher than 40 PCU s

, the annual average TSI of 60

sh ould be used as the assessment threshold. The annu a l mean color of Lake

Monroe is typically higher than 100 PCU s

. A TSI target of 60 was therefore used

for the nutrient assessment for the lake. During the verified period from 2001

through 2007, the annual average TSIs for the lake only exceeded the annual

average TSI threshold of 60 in 2001. In none of the subsequent years did the

annual average TSI value exceed this threshold.

Normally, the Department would not list the lake for nutrient impairment based on

these data. However, as discussed in **Section 2.2.2** , Lake Monroe was verified

impaired for low DO

, and biochemical oxygen demand (BOD) exceeded the

assessment threshold and was therefore considered the causative pollutant for the

observed low DO. More detailed data analyses showed a statistically significant

positive correlation between BOD and chla concentrations, suggesting that some

portions of the BOD might come from elevated phytoplankton biomass in the lake

,FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 7 produced due to the excessive nutrient input into the lake. Therefore, Lake

Monroe was verified by the Department as impaired for nutrient s , which could be

at least partially responsible for the observed low DO in the lake. The lake

communities were considered co

- limited by nitrogen and phosphorus based on a

median TN/TP ratio of 18 during the Cycle verified period.

**• Lake Harney.**  Like Lake Monroe, because the mean color level of the lake is

higher than 40 PCU s

, a TSI of 60 was used as the assessment threshold for Lake

Harney . During the C ycle 2 assessment, the lake’s annual average TSI

exceeded the TSI threshold of 60 only in 2001

. The annual average TSIs for the

remaining years of the verified period were all lower than the assessment

threshold. Normally, the lake would not be verified for nutrient impairment.

However, the IWR allows the use of information other than TSI and chla

concentration that indicate degraded nutrient condition to list a water for nutrient

impairment.

For Lake Harney, because of the low DO observed in the lake, and because a

statistically significant inverse correlation between monthly average DO and

monthly average TP was identified for the lake, nutrients were suspected to be at

least partially responsible for the low DO observed in the lake. In addition, a

paleolimnological study conducted by Anderson et al. (2006) indicated a trend of

elevated nutrient accumulation rate for the lake, and both the historic al biogenic

silicon indicator and diatom species taxonomic composition suggested that the

nutrient condition of the lake has degraded compared with the low

- impact

condition of the early 20 th 

### century. Based on these considerations, Lake Harney

was listed for nutrient impairment

, even though the TSI of the lake did not exceed

the assessment threshold in the m ore recent years of the verified period.

Table 2.2. Summary of Annual Average Chl a Concentrations for St. Johns River

above Lake Monroe (WBID 2893E) and St. Johns River above Wekiva

River (WBID 2893C), 1996

– 2007

1 1996 to 2003 was the verified period for the Cycle 1 assessment ; 2001 to 2008 was the verified period for the Cycle 2 assessment.

NA = Not enough data were available to calculate the annual average chl a concentration.

Year 1 St. Johns River above

Lake Monroe

( WBID 2893E ) St. Johns River above

Wekiva River

( WBID 2893C )

1996 12.9 19.8

1997 14.6 17.2

1998 9.0 15.8

1999 NA 2 30.4

2000 NA 2 29.3

2001 40.6 NA 2

2002 67.8 NA 2

2 003 8.1 NA 2

2004 7.8 NA 2

2005 10.2 NA 2

2006 15.6 NA 2

2007 28.1 17.6FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 8 

## 2.2.2 Dissolved Oxygen

Lake Harney ( WBID 29 64A), St. Johns River Downstream of Lake Harney ( WBID 2964), St.

Johns River above Lake Jesup ( WBID 2893F), St. Johns River above Lake Monroe ( WBID

2893E), Lake Monroe ( WBID 2893D), and St. Johns River above Wekiva River ( WBID 2893C)

were also verified imp aired for low DO

, based on the observation s that DO concentrations in

more than 10 percent of the samples collected during the verified period (January 1, 2001

, through June 30, 2007) from these segments were lower than the state criterion of 5.0

milligram s per liter ( mg/L ) , with a 90 percent confidence level. BOD and/or nutrients were identified as the causative pollutants for the low DO observed in these segments.

Table s 2.3 a through 2.3f list the data used for verifying the DO impairment

, and Table 2. 4 list s

the thresholds of TN, TP, and BOD concentrations in lake s , streams, and estuaries above which

these pollutants ar e considered causative pollutants for the observed low DO concentrations

.

Table 2.3 a. Summary of DO Monitoring Data in the Verified Per iod

for Lake Harney (WBID 2964A)

Parameter Summary of

O bservation s

Total number of samples 192

IWR

- required number of exceedances for the Verified List 26

Number of observed exceedances 29

Number of observed nonexceedances 163

Number of seasons during which samples were collected 4

Highest DO observation (mg/L) 11.6

Lowest DO observation (mg/L) 0.6

Median DO observation (mg/L) 6.9

Mean DO observation (mg/L) 6.7

Median value for 49 BOD observations (mg/L) 2.0

Median value for 223 TN observations (mg/L) 1.42

Median value for 225 TP observations (mg/L) 0.07

Possible causative pollutant by IWR Link to nutrients based on

statistical analyses and

paleolimnological studies

FINAL ASSESSMENT : ImpairedFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 9 Table 2. 3b. Summary of DO Monitoring Data in t he Verified Period

for St. Johns River Downstream of Lake Harney (WBID 2974)

Parameter Summary of

O bservation s

Total number of samples 52

IWR

- required number of exceedances for the Verified List 9

Number of observed exceedances 15

Number of observed n onexceedances 37

Number of seasons during which samples were collected 4

Highest DO observation (mg/L) 9.5

Lowest DO observation (mg/L) 1.6

Median DO observation (mg/L) 6.9

Mean DO observation (mg/L) 6.4

Median value for 16 BOD observations (mg/L) 1. 9

Median value for 59 TN observations (mg/L) 1.79

Median value for 62 TP observations (mg/L) 0.09

Possible causative pollutant by IWR Nitrogen

FINAL ASSESSMENT : Impaired



### Table 2.3 c. Summary of DO Monitoring Data in the Verified Period

for St. Johns River above Lake Jesup (WBID 2893F)

Parameter Summary of

O bservation s

Total number of samples 155

IWR

- required number of exceedances for the V erified L ist 21

Number of observed exceedances 30

Number of observed non exceedances 125

Number of seasons during which samples were collected 4

Highest DO observation (mg/L) 10.8

Lowest DO observation (mg/L) 0.9

Median DO observation (mg/L) 6.5

Mean DO observation (mg/L) 6.4

Median value for 9 BOD observations (mg/L) 2.2

Median value for 177 TN observation s (mg/L) 1.35

Median value for 182 TP observations (mg/L) 0.07

Possible causative pollutant by IWR BOD

FINAL ASSESSMENT : ImpairedFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 10 Table 2.3 d. Summary of DO Monitoring Data in the Verified Period

for St. Johns River above Lake Monroe (WBID 2893E)

Pa rameter Summary of

Observations

Total number of samples 126

IWR

- required number of exceedances for the V erified L ist 18

Number of observed exceedances 29

Number of observed nonexceedances 97

Number of seasons during which samples were collected 4

Hig hest DO observation (mg/L) 11.1

Lowest DO observation (mg/L) 0.4

Median DO observation (mg/L) 6.4

Mean DO observation (mg/L) 6.1

Median value for 13 BOD observations (mg/L) 3.0

Median value for 143 TN observations (mg/L) 1.52

Median value for 144 TP observations (mg/L) 0.10

Possible causative pollutant by IWR BOD

FINAL ASSESSMENT: Impaired



### Table 2.3 e. Summary of DO Monitoring Data in the Verified Period

for Lake Monroe (WBID 2893D)

Parameter Summary of

Observation s

Total number of samples 201

IWR

- required number of exceedances for the V erified L ist 27

Number of observed exceedances 32

Number of observed nonexceedances 169

Number of seasons during which samples were collected 4

Highest DO observation (mg/L) 11.7

Lowest DO observation (mg/L) 1.8

Median DO observation (mg/L) 7.2

Mean DO observation (mg/L) 7.0

Median value for 15 BOD observations (mg/L) 2.7

Median value for 217 TN observations (mg/L) 1.56

Median value for 221 TP observations (mg/L) 0.09

Possible causative pollutant by IWR BOD (related to

phosphorus)

FINAL ASSESSMENT : ImpairedFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 11 Table 2.3 f. Summary of DO Monitoring Data in the Verified Period for St. Johns

River above Wekiva River (WBID 2893C)

Parameter Summary of

O bservation s

Total number of samples 119

IWR

- required number of exceedances for the V erified L ist 17

Number of observed exceedances 26

Number of observed non exceedances 93

Number of seasons during which samples were collected 4

Highest DO observation (mg/L) 13.8

Lowest DO observation (mg/L) 1.6

Median D O observation (mg/L) 7.04

Mean DO observation (mg/L) 7.01

Median value for 12 BOD observations (mg/L) 2.8

Median value for 101 TN observations (mg/L) 1.60

Median value for 119 TP observations (mg/L) 0.09

Possible causative pollutant by IWR BOD

FINAL ASSESSMENT: Impaired



### Table 2. 4. Threshold Values for Identifying Causative Pollutants by

Waterbody Type

Waterbody Type BOD TN TP

Lake 2.9 1.7 0.11

Estuary 2.1 1.0 0.19

Stream 2.0 1.6 0.22



## 2.3 Seasonal and Spatial Variation of Nutrients and DO i n the I mpaired

Waterbodies

The long

- term seasonal variation of chl a (all chl a data used in this report were corrected for

pheophytin) , TN, TP, and DO concentrations were analyzed for the period of record ( 1996

–

2007 ), based on water quality data retrieved from IWR Database Run_35

. Figure s 2. 1 A to

2.1D

, 2. 2 A to 2.2D

, 2. 3 A to 2.3D , 2. 4A to 2.4D , 2. 5A to 2.5D

, and 2. 6A to 2.6D show the long

term seasonal trends of these parameters in the six impaired Middle St. Johns River segments

addressed in this report

.

Ov erall, peak chl a concentrations were observed in the middle of the year, mostly from May to

September. DO concentrations lower than 5.0 mg/L were typically observed from July to

October. While some low DO concentrations were observed during months with h igh

temperature s ( July to September ) , DO concentrations lower than 5.0 mg/L observed after

September could be influenced by the high color of the water

, mostly observed between July to

the end of the year (discussed in more detail in Chapter 3) . This sugg ests that humic materialsFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 12 from natural sources might also play an important role in causing the observed low DO

concentrations.

There wa s no obvious seasonal trend in TN concentrations. A general pattern was observed for

TP, which was low at the beginning of each year, rose to the peak value in the middle of the

year, and gradually decreased toward the end of the year.

For all the river segments, during the 12

- year period included in this analysis, the majority of

monthly average chl a concentrations were lower than 20 **μ** g/L (the chl a threshold used by the

Department to assess nutrient impairment in streams and rivers). Values higher than 20 **μ** g/L

were mostly observed from May to September. Overall monthly average chl a concentrations

were higher in 1999, 2000, and 2001 than in other years, likely caused by the concentration

effect of 3 consecutive years of drought. Other than these variations, the overall chl a

concentrations in these segments appeared relatively stable during the 12

- year period.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 13 Figure s 2. 1A

, B. Chla and DO Concentrations of Lake Harney (WBID 2964A)



### A

0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearChla Concentration (μg/L)



### B

0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearDO Concentration (μg/L)FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 14 Figure s 2. 1C, D. TN and TP Concentrations of Lake Harney (WBID 2964A)



### C

0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearTN Concentration (μg/L)



### D

0.00 0.05 0.10 0.15 0.20 0.25 0.30

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearTP Concentration (μg/L)FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 15 Figure s 2. 2A, B. Chl a and DO Concentrations of St. Johns River Downstream of Lake Harney (WBID 2964)



### B

0.00 2.00 4.00 6.00 8.00 10.00 12.00

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearDO Concentration (mg/L) 

### A

0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007



### YearChla Concentration (μg/L)FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 16 Figure s 2. 2C, D. TN an d TP Concentrations of St. Johns River Downstream of Lake Harney (WBID 2964)



### C

0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearTN Concentration (mg/L)



### D

0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearTP Concentration (mg/L)FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 17 Figure s 2. 3C, D. Chla and DO Concentrations of St. Johns River above Lake Jesup ( WBID 2893F)



### A

0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00 90.00 100.00

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearChla Concentration (μg/L)



### B

0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearDO Concentration (mg/L)FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 18 Figure s 2. 3C, D. TN and TP Concentrations of St. Johns River above Lake Jesup (W BID 2893F)



### C

0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearTN Concentration (mg/L)



### D

0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearTP Concentration (mg/L)FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 19 Figure s 2. 4C, D. Chla and DO Concentrations of St. Johns River above Lake Monroe (WBID 2893E)



### A

0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearChla Concentration (μg/L)



### B

0.00 2.00 4.00 6.00 8.00 10.00 12.00

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearDO Concentration (mg/L)FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 20 Figure s 2. 4C, D. TN and TP Concentrations of St. Johns River above Lake Monroe (WBID 2893E)



### C

0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearTN Concentration (mg/L)



### D

0.00 0.05 0.10 0.15 0.20 0.25 0.30

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearTP Concentration (mg/L)FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 21 Figure s 2. 5A , B. Chl a and DO Concentrations of Lak e Monroe (WBID 2893D)



### A

0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00 160.00 180.00

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearChla Concentration (μg/L)



### B

0.00 2.00 4.00 6.00 8.00 10.00 12.00

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearDO Concentration (mg/L)FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 22 Figure s 2. 5C , D. TN and TP Concentrations of Lake Monroe (WBID 2893D)



### C

0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearTN Concentration (mg/L)



### D

0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearTP Concentration (mg/L)FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 23 Figure s 2. 6A , B. Chl a and DO Concentrations of St. Johns River above Wekiva River (WBID 2893C)



### A

0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearChla Concentration (μg/L)



### B

0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearDO Concentration (mg/L)FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 24 Figure s 2. 6C , D. TN and TP Concentrations of St. Johns River above Wekiva River (WBID 2893C)



### C

0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearTN Concentration (mg/L)



### D

0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

YearTP Concentration (mg/L)FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 25 A s patial trend in chl a was observed along these river segments ( Table 2. 5 a; Figure 2. 7a ). For

the three segments upstream of Lake Jesup ( WBIDs 2964A, 2964

, and 2893F )

, the 75 th



### percentile s of the month ly average chl a c oncentrations were about 9.2, 10 .0, and 10.0

**μ** g/L , respectively, while median monthly average chl a concentrations were 4.2, 3.4 and

2.3 **μ** g/L, respectively. However, the segments downstream of the Lake Jesup outlet ( WBIDs

2893E, 2893D, and 2893C ) ha d si gnificantly higher chl a concentrations than the 3 upstream

WBIDs. The 75 th 

### percentile monthly average chl a concentration s for WBIDs 2893E, 2893D, and

2893C were 22.9, 29.0, and 25.2 **μ** g/L

, respectively, and the median monthly average chl a

concentrations we re 7.5, 11.8, and 12.2 **μ** g/L, respectively. These spatial trend s suggest a

significant influence by Lake Jesup on the chl a concentration of the main stem river segments.

In contrast to the monthly average chl a concentration, no obvious upstream

- downstream spatial

trend was observed for DO concentrations ( Table 2. 5b ; Figure 2. 7b ). The 25 th 

### , 50 th 

### , and 75 th



### percentile s of monthly average DO concentrations were 5.5, 6.8, and 8.3 mg/L , respectively, for

WBID 2964A (upstream of Lake Jesup outlet ); 5.5, 6.6, and 8.0 mg/L, respectively

, for WBID

2964 (upstream of the Lake Jesup outlet ); and 5.4, 6.6, and 7.9 mg/L, respectively, for WBID

2893F (upstream of the Lake Jesup outlet ).

For river segments downstream of the Lake Jesup outlet , the 25 th 

### , 50 th 

### , and 75 th 

### perc entile s of

monthly average DO concentrations were 5.0, 6.4, and 7.8 mg/L, respectively, for WBID 2893E ; 5.8, 7.1, and 8.3 mg/L, respectively, for WBID 2893D ; and 5.8, 7.0, and 8.3 mg/L, respectively,

for WBID 2893C. The fact that chl a concentrations diffe red significantly between river segments

upstream and downstream of the Lake Jesup outlet

, but that the distribution of DO

concentration s did not show a significant difference

, suggests that even if the nutrient condition

in these segments influence s DO co ncentration s at all, the influence may be relatively minor.

The upstream and downstream trends of TN and TP were not significant ( Table s 2. 5 c and 2. 5d;

Figure s 2.7c and 2. 7c ). For TN, the 25 th 

### , 50 th 

### , and 75 th 

### percentiles of monthly average

concentrations for the 3 segments upstream of the Lake Jesup outlet were 1.12, 1.33, and 1.58

mg/L, respectively, for WBID 2964A ; 1.11, 1.29, and 1.59 mg/L for WBID 2964 , respectively ; and 1.17, 1.42, and 1.68 mg/L, respectively, for WBID 2893F. For segments downstream of the

Lake Jesup outlet , the 25 th 

### , 50 th 

### , and 75 th 

### percentiles of monthly average concentrations were

1.23, 1.54, and 1.89 mg/L, respectively, for WBID 2893E ; 1.32, 1.47, and 1.75 mg/L,

respectively

, for WBID 2893D ; and 1.19, 1.43, and 1.79 mg/L, respectively, for WBID 2893C.

The downstream segments showed slightly higher TN concentrations, but the difference was

mostly lower than 20 percent , which was within one standard deviation of the TN concentrations

measured in these segments.

The TP concentration d istribution showed a similar pattern. The 25 th 

### , 50 th 

### , and 75 th 

### percentiles

of monthly average concentrations for the segments upstream of the Lake Jesup outlet were

0.05, 0.07, and 0.10 mg/L, respectively, for WBID 2964A; 0.05, 0.07, and 0.10 mg/L for WBI D

2964, respectively ; and 0.05, 0.07, and 0.10 mg/L, respectively, for WBID 2893F. For the

segments downstream of the Lake Jesup outlet , the 25 th 

### , 50 th 

### , and 75 th 

### percentiles of monthly

average concentrations were 0.07, 0.09, and 0.12 mg/L, respectively, f or WBID 2893E ; 0.06,

0.08, and 0.10 mg/L, respectively

, for WBID 2893D ; and 0.07, 0.08, and 0.11 mg/L,

respectively, for WBID 2893C. Again, the downstream segments showed only slightly higher

TP concentrations than the upstream segments, but the difference is within one standard

deviation of the TP concentrations measured in every WBID.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 26 Table 2.5a. Statistical Distribution of Chl a Concentrations in the Impaired Middle

St. Johns Segments



### Quantile s

Percentile Quantile WBID

2964A WBID

2964 WBID

2893F WBID

2893E WBID

2893D WBID

2893C

100.0% Maximum 70.87 72.24 89.70 115.00 165.05 115.96

99.5%

- 70.87 72.24 89.70 115.00 165.05 115.96

97.5%

- 39.95 55.45 54.35 85.09 128.12 110.56

90.0%

- 20.03 26.31 28.50 55.06 46.46 45.07

75.0% Quartile 9.19 10.00 10.45 22.94 29.02 25.17

50.0% Median 4.18 3.49 2.37 7.53 11.80 12.15

25.0% Quartile 1.93 1.60 1.20 2.88 4.21 4.51

10.0%

- 1.19 1.00 1.00 1.40 1.91 1.62

2.5%

- 1.00 1.00 1.00 1.00 1.29 1.03

0.5%

- 1.00 1.00 1.00 1.00 1.00 1.00

0.0% Minimum 1.00 1.00 1.00 1.00 1.00 1.00



### Moment s

Moment WBID

2964A WBID

2964 WBID

2893F WBID

2893E WBID

2893D WBID

2893C

Mean 7.95 9.15 9.54 17.56 21.94 18.94

Standard Deviation 10.28 12.84 15.61 23.04 28.43 22.51

Standard Error Mean 0.95 1.61 1.32 1.96 2.55 2.46

Upper 95% Mea n 9.83 12.36 12.16 21.44 27.00 23.82

Lower 95% Mean 6.07 6.95 6.92 13.68 16.89 14.05

Number of Samples 117 64 139 138 124 84FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 27 Table 2.5b. Statistical Distribution of DO Concentrations in the Impaired Middle St.

Johns Segments



### Quantiles

Percentile Qua ntile 

### WBID

2964A WBID

2964 WBID

2893F WBID

2893E WBID

2893D WBID

2893C

100.0% Maximum 11.59 9.53 11.71 11.14 10.20 11.73

99.5%

- 11.59 9.53 11.71 11.14 10.20 11.73

97.5%

- 9.63 9.39 9.48 10.48 9.65 10.32

90.0%

- 8.78 8.65 8.78 8.58 9.29 9.04

75.0% Qua rtile 8.26 7.97 7.92 7.80 8.33 8.25

50.0% Median 6.75 6.59 6.56 6.36 7.10 7.04

25.0% Quartile 5.58 5.51 5.37 5.02 5.84 5.85

10.0%

- 3.92 4.58 3.70 2.80 4.14 4.79

2.5%

- 1.27 2.05 2.02 0.87 2.28 3.16

0.5%

- 0.67 1.63 0.93 0.43 1.39 2.50

0.0% Minimum 0 .67 1.63 0.93 0.43 1.39 2.50



### Moments

Moment 

### WBID

2964A WBID

2964 WBID

2893F WBID

2893E WBID

2893D WBID

2893C

Mean 6.64 6.66 6.48 6.15 6.89 7.00

Standard Deviation 2.02 1.67 1.89 2.22 1.92 1.70

Standard Error Mean 0.19 0.19 0.16 0.19 0.17 0.16

Upper 95% Mean 7.01 7.03 6.80 6.53 7.23 7.32

Lower 95% Mean 6.26 6.28 6.16 5.78 6.54 6.67

Number of Samples 115 80 139 136 121 108FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 28 Table 2.5c. Statistical Distribution of TN Concentrations in the Impaired Middle St.

Johns Segments



### Quantiles

Percentile Qua ntile WBID

2894A WBID

2964 WBID

2893F WBID

2893E WBID

2893D WBID

2893C

100.0% Maximum 2.95 2.86 3.39 4.39 3.63 3.04

99.5%

- 2.95 2.86 3.39 4.39 3.63 3.04

97.5%

- 2.20 2.76 2.97 3.51 2.97 2.50

90.0%

- 1.88 2.12 2.09 2.63 2.14 2.00

75.0% Quartile 1.58 1.59 1.68 1.90 1.75 1.79

50.0% Median 1.33 1.29 1.42 1.54 1.47 1.43

25.0% Quartile 1.12 1.11 1.17 1.23 1.32 1.19

10.0%

- 1.02 0.99 1.07 1.12 1.15 1.09

2.5%

- 0.93 0.90 0.92 0.88 0.96 0.95

0.5%

- 0.82 0.31 0.82 0.72 0.84 0.55

0.0% Minimum 0.82 0.31 0.82 0.72 0.84 0.55



### Moments

Moment WBID

2894A WBID

2964 WBID

2893F WBID

2893E WBID

2893D WBID

2893C

Mean 1.39 1.42 1.51 1.69 1.58 1.49

Standard Deviation 0.34 0.47 0.48 0.63 0.45 0.39

Standard Error Mean 0.03 0.05 0.04 0.05 0.04 0.04

Upper 95% Mean 1 .45 1.52 1.59 1.80 1.66 1.57

Lower 95% Mean 1.33 1.31 1.43 1.58 1.51 1.42

Number of Samples 140 83 138 138 136 99FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 29 Table 2.5d. Statistical Distribution of TP Concentrations in the Impaired Middle St.

Johns Segments



### Quantiles

Percentile Quantile WBID

2964A WBID

2964 WBID

2893F WBID

2893E WBID

2893D WBID

2893C

100.0% Maximum 0.26 0.36 0.30 0.25 0.29 0.31

99.5%

- 0.26 0.36 0.30 0.25 0.29 0.31

97.5%

- 0.20 0.23 0.23 0.23 0.22 0.21

90.0%

- 0.13 0.16 0.14 0.15 0.14 0.13

75.0% Quartile 0.10 0.10 0.10 0.12 0.10 0.11

50.0% Median 0.07 0.07 0.07 0.09 0.08 0.08

25.0% Quartile 0.05 0.05 0.05 0.07 0.06 0.07

10.0%

- 0.04 0.03 0.04 0.05 0.05 0.05

2.5%

- 0.04 0.02 0.04 0.04 0.04 0.03

0.5%

- 0.04 0.01 0.03 0.01 0.04 0.01

0.0% Minimum 0.04 0.01 0.03 0.01 0.04 0.01



### Moments

Moment WBID

2964A WBID

2964 WBID

2893F WBID

2893E WBID

2893D WBID

2893C

Mean 0.08 0.08 0.08 0.10 0.09 0.09

Standard Deviation 0.04 0.06 0.04 0.05 0.04 0.04

Standard Error Mean 0.01 0.01 0.01 0.01 0.01 0.01

Upper 95% Mean 0.09 0.09 0.09 0.11 0.10 0.10

Lower 95% Mean 0.07 0.07 0.08 0.09 0.08 0.08

Number of Samples 138 81 140 139 136 106FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 30 Figure 2. 7a

. Distribution of Monthly Average Chl a Concentrations in the Impaired Middle St. Johns River Segments



### WBID

2964 WBID

2893F

WBID

2893E WBID

2893D WBID

2893C WBID

2964AFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 31 Figure 2. 7b

. Distributi on of Monthly Average DO Concentration s in the Impaired Middle St. Johns River Segments



### WBID

2964 WBID

2893F

WBID

2893E WBID

2893D WBID

2893C WBID

2964AFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 32 Figure 2

.. Distribution of Monthly Average TN Concentrations in the Impaired Middle St. Johns River Segments



### WBID

2964 WBID

2893F

WBID

2893E WBID

2893D WBID

2893C WBID

2964AFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 33 Figure 2.7d. Distribution of Monthly Average TP Concentrations in the Impaired Middle St. Johns River Segments



### WBID

2964 WBID

2893F

WBID

2893E WBID

2893D WBID

2893C WBID

2964AFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 34 In summary, chl a concentration is the parameter that differ s significantly between segments

upstream and downstream of the Lake Jesup outlet . This could be caused by the relatively

large differ ence between Lake Jesup chl a concentration and chl a concentrations of the St.

Johns River segments upstream of the Lake Jesup outlet (discussed in more detail in Chapter

3 ). TN and TP concentrations did not show a significant upstream

- downstream pattern

, although TN and TP concentrations in the upstream segments were slightly lower than in the

downstream segments. The distribution of DO concentrations in the upstream and downstream

segments is generally the same. Chapter 3 discuss es in detail the relationship between DO and

nutrient concentrations. The similar distributions of DO concentration s in the upstream and

downstream segments suggest that, even if nutrient concentrations influence DO concentration

in these river segments, other factors, such as t he input of humic materials from the watershed

, could also be an important factor influenc ing DO.

C hl a and TP concentrations showed relatively similar seasonal pattern s, peaking in the middle

of each year and gradually decreas ing toward the end of each yea r. In contrast, low DO

concentrations were mostly observed during the summer months or later in each year. While

the low DO concentrations in summer m ay be caused by the high temperature , and, to a certain

extent, the influence of nutrients

, the low DO c oncentrations observed later in the year m ay be

caused by the high color (described in detail in Chapter 3 ). While these trends indeed show that

the summer growth season is the critical season for both chl a and DO, higher nutrient input s

during the summer ( because of the higher rainfall ) should be considered a natural phenomenon.

C ontrolling the overall nutrient loadings on an annual average basis so that the summer nutrient

concentrations in these impaired river segments will also be reduced is a reasonable approach

to improve the chl a and low DO condition s

.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 35 

# Chapter 3. DESCRIPTION OF APPLICABLE WATER

QUALITY STANDARDS AND TARGETS

3.1 Classification of the Waterbody and Criteria Applicable to the TMDL

Florida’s surface waters are protected for fiv e designated use classifications, as follows:

Class I Potable water supplies

Class II Shellfish propagation or harvesting

Class III Recreation, propagation, and maintenance of a healthy, well

balanced population of fish and wildlife

Class IV Agricultur al water supplies

Class V Navigation, utility, and industrial use (there are no state

waters currently in this class)

The six Middle St. Johns River segments included in this report are Class III waterbodies, with a

designated use of recreation, propagation, and the maintenance of a healthy, well

- balanced

population of fish and wildlife. The Class III water quality criteria applicable to the impairment

addressed by this TMDL report are for nutrients and DO.



## 3.2 Applicable Water Quality Standards and Nume ric Water Quality Target

**3.2. 1**  **Interpretation of Narrative Nutrient Criterion**

Florida’s nutrient criterion is narrative only

— i.e., the nutrient concentrations of a body of water

shall not be altered so as to cause an imbalance in natural populations of aq uatic flora or fauna.

Accordingly, a nutrient

- related target was needed to represent levels at which an imbalance in

flora or fauna is expected to occur. A threshold defined by the IWR for assessing nutrient

impairment in streams and rivers is an annual average chl a concentration of 20 μg/L . For

assessing the nutrient condition in lakes, the TSI

— which is a unitless index with a 0 to 100

scale that considers influences from chl a , TN, and TP concentrations

— is used in the IWR

.

The value of the TSI thresho ld varies based on the mean color of the lake being assessed. If

the mean color of an assessed lake is less than or equal to 40 PCU s

, an annual average TSI of

40 units should be used as the threshold

, above which the lake is considered impaired for

nutrient s . If the mean color of an assessed lake is larger than 40 PCUs, an annual average TSI

of 60 units is used as the assessment threshold. More detailed descriptions of nutrient

assessment can be found in the I WR ( Rule 62

- 303

, F.A.C

. ).

T he IWR also allows the use of information other than chl a concentration and TSI to evaluate an

imbalance in flora or fauna due to nutrient enrichment . The information may include , but is not

limited to, algal blooms, excessive macrophyte growth, a decrease in the distrib ution (either in

density or areal coverage) of seagrasses or other submerged aquatic vegetation, changes in

algal species richness, and excessive diel oxygen swings.

It should be noted that, while the IWR provides thresholds for assessing nutrient impairme nts for

lakes based on annual average TSI levels and on annual average chl a levels for streams, these

thresholds are not standards and need not be used as the nutrient

- related water quality target

for TMDLs. In fact, in recognition that the IWR thresholds were developed using statewideFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 36 average conditions, the IWR (Subsection 62

- 303.450, F.A.C.) specifically allows the use of

alternative, site

- specific nutrient targets that more accurately reflect conditions beyond which an

imbalance in flora or fauna occurs in a waterbody.

For the Middle St. Johns River segments, nutrient targets were established not only to restore

healthy TSI and chl a levels, but also with the intent to address the low DO condition of these

waters. Because nutrients can influence the DO concentration in a receiving water by

influencing the chl a concentration (algal biomass), discussions of nutrient target development

primarily focused on the functional relationship between chl a and nutrient concentrations.

Therefore, although two of the t hree river segments upstream of the Lake Jesup outlet were not

verified for nutrient impairment, as discussed in the following sections, low DO concentrations

observed in these water s can still be linked to nutrients, which also influence chl a

concentratio ns.

The following three questions were asked in developing nutrient targets for impaired segments

of the Middle St. Johns River, and are discussed in detail in subsequent sections :

1. Are the relationships between chl a and nutrient concentration s different i n river

segments upstream and downstream of the Lake Jesup outlet ?

2. If the answer to Question 1 is yes, w hat causes the upstream

- downstream

difference in the chl a- nutrient relationship? Are different nutrient targets

warranted for the upstream and downstream segments?

3. If d ifferent targets are needed, what should these targets be ?

1. Are the relationships between chl **a** and nutrient concentration s different in river

segments upstream and downstream of the Lake Jesup outlet ?

This question was triggered by the upstream and downstream spatial pattern s discussed in

Chapter 2 . It appears that TP and TN concentrations in the segments upstream of the Lake

Jesup outlet (WBIDs 2964A, 2964

, and 2893F) were not dramatically different from those in the

downstream segmen ts ( WBIDs 2893E, 2893D, and 2893C). However, chl a concentrations in

these two parts of the river differ by two

- to threefold ( Tables 2. 5a through 2. 5d ). This suggests

that with the same TN and TP concentrations in the river, the downstream segment may su pport

two to three times more algal biomass than the upstream segments. Therefore

, the functional

relationship between chl a and nutrient concentrations upstream and downstream of the Lake

Jesup outlet must be different.

To demonstrate that this is the c ase

, chl a (corrected for pheophytin)

, TN

, and TP concentrations

were retrieved from the Department’s IWR Database Run_35 for the six segments included in

this report. The relationships between chl a concentration s and TN and TP concentrations were

analyzed by aggregating the three downstream segments into one analysis unit and the

upstream segments into another analysis unit.

The period of record used for this analysis was 1996 through 2007. Because the IWR requires

that the assessment of nutrient conditio n in ambient waters be conducted based on annual

average chl a concentration or annual average TSI, the functional relationship analyses were

conducted by regressing the annual average chl a in each analysis unit against the annual

average TN and TP concentr ations for the same unit

.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 37 To ensure that all the data included in the analysis were representative of the typical chl anutrient relationship, annual average values from 2000 were excluded because it was the peak

of the 3 consecutive dry years from 1999 through 2001. During about 21 percent of th is year,

the daily flow measured at a U.S. Geological Survey ( USGS ) flow gage (02234500) located at

the outlet of Lake Monroe show ed reverse flow from downstream to upstream

— likely due to the

large -scale, wind

- drive n currents and seiches that formed in this part of the St. Johns River

— while for the entire period of record of flow from 1996 through 2007, the percent annual reverse

flow rate at the same gaging station was about 10 percent. A h igher percentage of rever se flow

during a year may significantly change the source of chl a , TN, and TP, and therefore change

the functional relationship between algae and nutrients.

In addition, the annual average daily flow for 2000 at Gage 02234500 was about 759 cubic feet

per second (cfs)

, while the long

- term annual average daily flow for 1996 to 2007 was about

2, 313 cfs. Under the extended low

- flow condition, concentration effects from the

uncompensated evaporation may increase the concentrations of chl a , TN, and TP, and

the refore distort the functional relationship between algal biomass and nutrient concentrations.

For these reasons, data from 2000 were not included in the analysis

.

Figure 3.1 show s the relationship between annual average chl a and TP concentrations in the

upstream and downstream analysis units. Figure 3.2 show s the relationship between annual

average chl a concentrations and TN concentrations in the upstream and downstream analysis

units

.

Significant functional relationships were identified between chl a co ncentrations and TN and TP

concentrations in river segments both upstream and downstream of the Lake Jesup outlet

, based on Figures 3.1 and 3.2

. However, with the same nutrient concentrations, the

downstream segments support higher chl a concentrations tha n the upstream segments. In

addition, the per unit variation in TP concentration s apparently is associated with a larger

variation in chl a concentration s in the downstream segment s than in the upstream segments,

indicating that the functional relationship between chl a and nutrient concentrations differ s between these upstream and downstream segments. Another observation from Figures 3.1

and 3.2 is that the difference in chl a concentrations that can be supported by the same nutrient

concentrations in the u pstream and downstream segments decrease s as nutrient

concentrations decrease. This implies that, under the target nutrient concentrations, the

difference in the achievable chl a concentration between the upstream and downstream

segments is smaller than the difference for the existing condition.

2. If the answer to Question 1 is yes, what causes the upstream

- downstream difference

in the chl **a**

- nutrient relationship? Are different nutrient targets warranted for the

upstream and downstream segments?

There are several possible reasons that upstream and downstream chl a- nutrient relationships

are different. For example, the different morphology of waterbodies can influence the chl a

nutrient relationship. Assuming the same volume, a deeper river/lake with a smal ler surface

area provides a smaller percent volume of the water column that is above the euphotic zone for

algal growth

, compared with a shallower river/lake with a larger surface area. Therefore, the

same amount of nutrients in lakes/rivers with a smalle r surface area and greater depth will

produce less algal biomass than waters with shallower depth and a larger surface area.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 38 Figure 3.1

. Functional Relationship between Chl a and TP Concentrations in River

Segments Upstream and Downstream of the Lake Je sup Outlet

Figure 3.2

. Functional Relationship between Chl a and TN Concentrations in River

Segments Upstream and Downstream of the Lake Jesup Confluence y = 517.9x 1.655

R2 = 0.416 y = 2135.x 2.052

R2 = 0.307

0.00 10.00 20.00 30.00 40.00 50.00 60.00

0.04 0.06 0.08 0.10 0.12 0.14 0.16Chla Concentration (μg/L)



### TP Concentration (mg/L) Upstream

Downstream

Correlation Curve (Upstream)

Correlation Curve (Downstream)

y = 3.532x 2.318

R2 = 0.463 y = 6.453x 2.045

R2 = 0.559

0.00 10.00 20.00 30.00 40.00 50.00 60.00

0.50 1.00 1.50 2.00 2.50 3.00Chla Concentration (μg/L)



### TN Concentration (mg/L) Upstream

Downstream

Correlation Curve (Upstream)

Correlation Curve (Downstream)FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 39 Waterbody volume may also influence the chl a

- nutrient relationship. Assuming that the total

flow b etween the upstream and downstream segment s does not differ by much, segments with

a smaller volume will have a shorter water residence time than segments with a larger volume

. T herefore, with the same amount of nutrients, segments with a shorter water re sidence time will

produce less algal biomass than segments with a longer water residence time.

The amount of algal biomass produced from the same quantity of nutrients can also be

influenced by the color level or turbidity of the water. Because high col or

— specifically, the high

color caused by the high content of humic materials

— can absorb light in the blue

- green portion

of the visible spectrum, reducing the amount of photosynthetically active radiation that is

available in the water column, water segments with higher color typically produce smaller

amount s of algal biomass than segments with relatively low color with the same supply of

nutrients

. H igh turbidity can physically block light penetration in the water column and cause

algal growth to be limited by the availability of light even when the nutrient supply is abundant.

D ifferent nutrient composition s may also influence algal productivity. If the percentage of

inorganic nutrient s in the total nutrient s is high, or if a higher percentage of the o rganic portion of

the total nutrient s is relatively labile, the same amount of total nutrient s may support more algal

biomass than nutrient s with a relatively low percentage of inorganic fraction and/or where the

organic fraction of the total nutrient is relatively recalcitrant.

Another fact or that may influence the chl a

- nutrient relationship in a give n waterbody is if it

receives algal biomass produced by an other water system with a different chl a

- nutrient

relationship

, due to some or all of the factors discussed above. The final chl a

- nutrient

relationship in the waterbody in question is the mixing result of the two different chl a

- nutrient

relationships and therefore differ s from the original chl a

- nutrient relationship in the target

waterbody.

It is common ly accepted that, with all the other environmental factors being the same, a riverine

system typically produce s less algal biomass than a l acustrine system because the la t ter has a

relatively longer water residence time. Nutrient targets appropriately set up for lakes should

protect the nutrient condition of the associated river channels. T herefore, when examining the

characteristics of the upstream and downstream segments, efforts focused on comparing Lake

Harney with Lake Monroe. Table 3.1 list s some m ajor morphological (surface area, mean

depth, and maximum depth) , hydrologic, chemical, and biological factors of the two lakes

.

Based on Table 3.1 , the morphology of Lake Harney and Lake Monroe is very similar. Both are

shallow lakes with relatively large surface area s and long

- term average water residence time s of

less than 1 month. The water residence time estimated by BCI Engineers and Scientist s (2008)

for Lake Monroe ( based on flow records from 1995 through 2006 ) wa s about 23 days, which is

slightly longer than the long

- term average water residence time for Lake Harney (15 days).

Biologically, a few more days of water residence time should not result in t wo to three times

more algal biomass with the same amount of nutrient s.

T he mean color of Lake Harney is only slightly higher than that of Lake Monroe. Taking into

consideration the standard deviation, the color level s of the two lakes do not differ significantly.

In fact, the mean Secchi depth of Lake Harney wa s even higher than that of Lake Monro e, and

the turbidity level of Lake Monroe was slightly higher than that of Lake Harney, suggesting that

light limitation is not a major factor causing the different chl a

- nutrient relationships in these two

waters.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 40 Table 3.1

. Compari son of Characteristics o f Lake Harney and Lake Monroe

1 Numbers cited from BCI Engineers and Scientists (2008)

. 2 Numbers cited from Seminole County Water Atlas ( http://www.seminole.wateratlas.usf.edu/ ).

3 NTU = Nephelometric turbidity unit

4 **μ** S = Microsiemens

5 TKN = Total Kjeldahl nitrogen

6 NH3+4 = Nitrogen ammonia

7 NO2+3 = Nitrate nitrite

8 DIN = Dissolved inorganic nitrogen

9 SRP = Soluble reactive phosphorus

10 NA = Not available

Parameter Lake Harney (WBID

2964A)

Rep resenting

Upstream

Condition

–

Mean Lake Harney (WBID

2964A)

Representing

Upstream

Condition

– Standard Deviation Lake Monroe (WBID

2893D) Representing

Downstream

Condition

–

Mean Lake Monroe (WBID

2893D) Representing

Downstream

Condition

– Standard Deviation

Watershed Area 1

(square miles) 2, 070 NA 10 2, 624 NA 10

Surface Area

(acres) 2 7,935 NA 10 8,814 NA 10

Mean Depth (f ee t) 2 7 NA 10 6 NA 10

Maximum Depth

(f ee t) 2 15 NA 10 16 NA 10

Water Residence

Time (days) 1 15 NA 9 23 NA 10

Flow (30

- day mean,

cfs) 2, 038 1, 935 2, 472 2, 316

Secchi (f ee t) 2.34 0.86 1.98 0.53

Turbidity (NTU) 3 3.31 2.61 4.87 3.75

pH 7.65 0.55 7.64 0.69

Alkalinity (mg/L) 100.4 47.8 107.6 43.7

Temperature ( 0 C) 23.97 5.11 23.61 5.11

Specific Conductivity

( **μ** S ) 4 1, 130 605 1, 028 451

Color (PCU) 182.4 106.9 170.4 114.14

TN (mg N/L) 1.37 0.32 1.52 0.43

TKN (mg N/L) 5 1.28 0.29 1.45 0.42

NH3+4 (mg N/L) 6 0.04 0.04 0.05 0.05

NO2+3 (mg N/L) 7 0.09 0.10 0.07 0.07

DIN (mg N/L) 8 0.13 0.09 0.12 0.12

TP (mg P/L) 0.07 0.04 0.08 0.03

SRP (mg P/L) 9 0.03 0.02 0. 03 0.03

Chl a C orrected

(μg/L) 10.31 14.41 20.55 24.40



### TN and TP concentrations, as well as compositions of TN and TP, are also very similar in Lake

Harney and Lake Monroe. The concentrations of dissolved inorganic nitrogen and phosphorus,

and their ratios to TN and TP, are similar for both lakes, suggesting that nutrient composition is

not a major factor caus ing the observed difference in chl a

- nutrient relationships in these waters.

Based on the above data, it appears that the most likely cause for the higher chl a

- nutrient ratio

observed in the downstream segments is that these segments receive the chl a input from Lake

Jesup. Compared with Lake Harney and Lake Monroe, which have a long

- term average water

residence time of 10 to 20 days, the long

- term a verage water residence time for Lake Jesup is

about 3 months (Keesecker, 1992). Th us phytoplankton have a longer time to respond to theFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 41 change in nutrient concentrations and produce more algal biomass than Lake Harney and Lake

Monroe.

In addition, Lake Jesup has a lower color level than Lake Harney and Lake Monroe. The long

term average color level of Lake Jesup for 1996 through 2007 was less than 90 PCU s,

compared with more than 170 PCU s observed in Lake Harney and Lake Monroe. Lower color

supports mo re algal growth with the same nutrient availability. In fact, the long

- term average

chl a

- to

- TP and chl a

- to

- TN ratio s for Lake Jesup, based on data from 1996 through 2007, were

about 23 and 424, respectively, while the long

- term average chl a

- to

- TP and chl a

- to

- TN ratios

were 7 and 107, respectively

, for the segments upstream of the Lake Jesup outlet, and 13 and

223, respectively, for the segments downstream of the Lake Jesup outlet . Apparently, the

downstream chl a

- to

- TN and chl a

- to

- TP ratios were closer to the Lake Jesup ratios than the

upstream ratios.

If the downstream segments receive the Lake Jesup chl a output

, as well as outputs of TN and

TP, why is the downstream chl a concentration significantly different from the upstream

segments

, while the difference between TN and TP concentrations in the upstream and

downstream segments is not so obvious ? This is likely caused by the larger difference in chl a

concentrations between Lake Jesup and the upstream segments than the difference in TN and

TP concentration s between Lake Jesup and the upstream segments. For Lake Jesup, the long

term (1996

– 2007) average annual chl a , TN, and TP concentrations were about 66.5 **μ** g/L, 2.96

mg/L, and 0.16 mg/L , respectively

. For the river segment immediately upstream of the Lake

Jesup outlet (WBID 2893F), the long

- term average annual chl a , TN, and TP concentrations

were about 9.9 **μ** g/L, 1.54 mg/L, and 0.09 mg/L, respectively. While the long

- term annual

average chl a concentration in Lake Jesup was about 6.7 times higher than the chl a

concentration in the immediate upstream segment, the TN and TP concentration s only differed

by factor s of about 1.9 and 1.8

, respectively. This may have caused the higher chl a

concentrations observed in the downstream segments ( compared with the upstream segments )

, while the TN and TP concentrations in the upstream and downstream segments were about the

same.

To demonstrate that this is the case, flow measurements from a USGS gaging station located at

the outlet of Lake Jesup (02234435) were compared wi th measurements from the gaging

station located at the outlet of Lake Monroe (02234500). Flow data were downloaded from a

USGS W ebsite ( http://waterdata.usgs.gov/usa/nwis/sw ) and used to estimate the relative ratio

of the Lake Jesup water outflow and the main stem flow. Th is ratio was then used to calculate

chl a , TN, and TP concentrations in the downstream segments based on the long

- term average

annual chl a , TN, and TP concentrations of both the Lake Jesup and upstream river segments

. I f the calculated downstream chl a , TN, and TP concentrations generally match up with the

measured downstream concentrations

, the observed higher chl a concentration and similar TN

and TP concentrations compared with the upstream segments would result from mixing Lake

Jesup water with the main stem St. Johns River water.

Table 3.2 shows the annual total outflows from Lake Jesup and main stem flow in this area of

the St. Johns River. Figure 3.3 shows the location of the t wo USGS gaging stations used for

this analysis. It should be noted that reverse flow ( i.e.

, flow from the St. Johns River into Lake

Jesup ) happen s episodically

, depending on the regional rainfall pattern. Because Lake Jesup

does not contribute chl a , TN, and TP to the main stem under the reverse flow condition, all the

reverse flows (negative flow values) were assumed to be 0 in calculating the annual total

outflow from Lake Jesup.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 42 Table 3.2

. Ratio of Lake Jesup Outflow to the Main Stem Flow of the St. J ohns River

- = Flow data are missing for a significant portion of 2004. Therefore

, the annual total outflow was not calculated for the year.

1 Ac

- ft/yr = Acre

- feet per year

Year Lake Jesup

Outflow

(ac

- f t /yr) 1 St. Johns River

Main Stem Flow

(ac

- f t /yr) 1 R atio between Lake

Jesup and

Main Stem Flow

(%)



### 1996 163

, 015 1, 746

, 565 9%

1997 87

, 382 1, 077

, 077 8%

1998 196

, 507 2, 474

, 477 8%

1999 95

, 469 1, 468

, 957 6%

2000 107

, 434 550

, 854 20%

2001 104

, 021 1, 732

, 698 6%

2002 180

, 408 2, 157

, 025 8%

2003 185

, 138 2, 276

, 35 6 8%

2004

- 

### 2, 375

, 235

-



### 2005 182

, 319 2, 616

, 232 7%

2006 117

, 314 848

, 757 14%

2007 92

, 585 778

, 903 12%

Mean 

### 145

, 126 1, 716

, 746 10%



### Based on Table 3.2 , the long

- term average ratio between the Lake Jesup outflow and the main

stem flow of the St. Johns Riv er wa s about 10 percent . Using the long

- term average annual

chl a , TN, and TP concentrations for Lake Jesup and the immediate upstream segment of the St.

Johns River (provided in the preceding text ), the calculated downstream chl a , TN, and TP

concentration s were 15.5 **μ** g/L, 1.68 mg/L, and 0.096 mg/L, respectively. The long

- term

average annual chl a , TN, and TP concentrations based on measured data (1996

– 2007) in the

segment immediately downstream of Lake Jesup were 16.4 **μ** g/L, 1.75 mg/L, and 0.095 mg/L,

respe ctively. Thus the estimated downstream chl a , TN, and TP concentrations matched the

long

- term average annual chl a , TN, and TP concentrations calculated on the basis of measured

data. These results suggest that the assumption that the observed downstream h igher chl a

concentration and TN and TP concentrations similar to the upstream segments were caused by

mixing the Lake Jesup outflow and St. Johns River main stem flow is likely correct.

All of the above discussions clarify the question of whether different water quality targets are

warranted for the Middle St. Johns River segments upstream and downstream of the Lake

Jesup outlet. It appears that, because of the general morphological and hydrologic similarities

between the upstream and downstream segments, and the relatively small difference between

Lake Jesup TN and TP concentrations and the TN and TP concentrations of the river segments

upstream of the Lake Jesup outlet, establishing the same TN and TP targets for both the

upstream and downstream river segments appear s reasonable. However, because the

downstream segments constantly receive the chl a discharge from Lake Jesup, which has a

significantly longer water residence time than the downstream river segments, the chl a

- nutrient

relationships between the upstream and downstream segment s are different. The chl a- to

nutrient ratios for the downstream segments are higher than those of the upstream segment s

.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 43 Figure 3.3. Location of USGS Gaging Stations Used in Calculating the Long -Term

Flow Ratio between Lake Jesup Flow and Flow through the Main Stem of

the St. Johns River around Lake JesupFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 44 T his should be considered a natural phenomenon. Therefore, while the same TN and TP

targets can be established for the river segments both upstream and downstream o f the Lake

Jesup outlet, achievable chl a concentration s could be different for the upstream and

downstream segments, with the downstream achievable chl a concentration being relatively

higher than the upstream achievable chl a concentration.

3. If different targets are needed, what should these targets be ?

When these TMDLs were developed, there were no data that could be used directly to derive

the TN and TP concentration targets for the impaired river channel s . However, data and

information were available that allow ed the development of TN and TP targets for Lake Harney

and Lake Monroe. Due to the general similarities in TN and TP concentrations between the

lakes and the river segments associated with these lake s , TN and TP targets were developed

for Lake Harney and Lake Monroe and applied to these associated river channels. Because the

river channels have a shorter water residence time than the lakes, these segments should be

less vulnerable to the impact s of nutrient s than lakes. Therefore, nutrient targets sufficient to

protect lakes should be sufficient to protect the se river channels. Based on this logic, the

nutrient targets for the impaired St. Johns River segments were developed for the lakes and

applied to the river segments between the lakes . A chievable chl a concentrations were

estimated for the river segments

, depending on their spatial relationship with the Lake Jesup

outlet.

Several methods were used to develop the TN and TP targets. The g eneral goal of using these

methods was, first, to ens ure that nutrient concentrations in these water s we r e generally below

the upper limit of mesotrophic condition but not below the pristine natural background condition.

One method used wa s to ensure that the TSI values calculated on the basis of target TN and

TP concentrations we re all equal to or smaller than a TSI of 60. As discussed in Chapter 2

, the

Department uses a TSI of 60 as the assessment threshold for lakes with a mean color greater

than 40 PCU s

. This procedure is defined in the IWR (Section 62

- 303.352. F.A.C.).

As tabulated in Table 3.1 , mean color levels for Lake Harney and Lake Monroe were 182 and

170 PCU s

, respectively, which were both higher than the threshold of 40 PCU s

. A TSI of 60 is

therefore a reasonable threshold for both Lake Monroe and Lake Harney. It is commonly

accepted that a TSI of 60 represents the division between mesotrophic and eutrophic condition s

in lakes

. The equations used to calculate the TN and TP TSI were developed by Huber et al.

(1982). For lakes with a TN/TP ratio falling between 10 and 30, the TN and TP TSI equations

are as follows :

Equation (1) TSI (TN) = 10*(5.6 + 1.98*LnTN)

Equation (2) TSI (TP) = 10*(1.86*Ln ( TP *1000)

– 1.84)

Under the existing condition, the long

- term average annual TN and TP concentrations were 1.38

and 0.08 mg/L, respectively, for Lake Harney and 1.57 and 0.09 mg/L, respectively, for Lake

Monroe. The corresponding TN and TP TSIs are both 62 for Lake Harney and both 65 for Lake

Monroe. Lake Harney was not verified impair ed for nutrient s based on the TSI because the

annual chl a TSI was low for the lake during most of the verified period . Therefore

, the overall

TSI value, which is the mean value between the chl a TSI and nutrient TSI, was below 60

.

For Lake Monroe, although the annual a verage chl a TSI in 2001 exceeded 60

, the annual

average chl a TSI s in the most recent years from 2002 through 2007 were all sufficiently low toFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 45 bring the overall TSI values for the lake lower than 60. Therefore, the lake was not verified for

nutrient impai rment.

However, the fact that TN and TP TSIs in both lakes were higher than 60 indicate s that the se

systems have the potential to become eutrophic. This did not occur because the high color and

short water residence time depressed the expression of the typical chl a

- nutrient functional

relationships in these systems. S hould the color of the system decrease and water residence

time increase (e.g.

, under drought condition s ), or if excessive amount s of nitrogen and

phosphorus are carried downstream into waterbodies with low color and a relatively high water

residence time

, high er chl a concentration s would be expected. Therefore, when setting TN and

TP targets for these lakes, it is desirable to ensure that the TN and TP TSIs will also meet the

TSI threshold of 60. For them to meet th is threshold, the target TN and TP concentrations for

Lake Monroe and Lake Harney calculated using Equations (1) and (2) are 1.22 and 0.068 mg/L,

respectively.

Nutrient targets can also be developed by examining nutrient concent ration s under the

predevelopment or low

- impact condition during the early stage s of development in a watershed

. Paleolimnological studies were conducted by Anderson et al. (200 4 , 2006) for both Lake Harney

and Lake Monroe using a lead isotope ( 210 

### Pb) to e stimate the general time frame when lake

sediment s of a certain depth were formed. The nutrient contents of the sediment at different

depths were then measured, allow ing the nutrient accumulation rate in the sediment during a

certain period to be estimate d . By assuming that the nutrient accumulation rate roughly equals

the nutrient sedimentation rate, and the specific sedimentation rate (total sedimentation divided

by total nutrient concentration in the water column) is generally constant , as long as the

sedimentation rates for both the low

- impact and existing condition s are known

, the nutrient

concentrations for a given lake under the low

- impact condition can be derived. This

concentration is the nutrient target for the lake

.

In d evelop ing nutrient targets based on paleolimnological information , the Department focused

on studies conducted in Lake Monroe (Anderson et al.

, 2004). Six sediment cores collected

across the lake were dated using 210 

### Pb and carbon 14 ( 14 

### C) radiometric technologies

. Information o n phosphorus and nitrogen accumulation rates, the biogenic silicon accumulation

rate, and diatom taxonomy was also collected to evaluate the critical period when significant

shifts in trophic state were observed in the lake.

T hese studies indicated that Lake Monroe’s sediments comprised three main types : gyttja,

peat, and sands/clay/mud. The gyttja layer was primarily composed of fine

- grained materials

that might primarily com e from phytoplankton

, were on top of all the sediment cores

, and were

deposited over the last 100 years or so . T he radiometric technologies demonstrated that the

accumulation of fine

- grained material (gyttja) in the lake did not start until the 19 0 0s, coincid ing

with settlement and development in the region (Anderson et al.

, 2004). At the same time, the

mass accumulation rates of silica, which is used as an indicator for diatom productivit y

, emergent plants

, and attached sponges, started to increase as early as the 1920s, but the most

significant increase happened after 1970

. The diatom taxonomy results also generally

supported this time frame.

Therefore, to develop nutrient targets based on these paleolimnological studies, nutrient

accumulation rates from 1920 to 19 7 0 from each sediment core were used to represent the low

impact condition. The nutrient accumulation rates for the latest period, mostly in the 1990s,

were used to represent the existing condition. The r esults from the sediment core collected

from S ite LM45

- 03 during the study were not used in this TMDL analys i s because the core onlyFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 46 showed the accumulation rate for 1964. Neither the accumulation rate for the period before this

date nor the accumulation rate after this date were available. It was difficult to judge whether

there wa s any in creasing trend in accumulati on rate at th e site or not.

Nutrient target development based on paleolimnological studies was only conducted for TP.

Because of the potential impact of denitrification on estimating the nitrogen sediment

accumulation rate, the TN target concentration was not developed using this method. T he

t arget TN concentration was inferred using the TP target concentration and the relationship

between TN and TP concentrations established on the basis of existing data. Table 3.3 shows

the TP accumulation rate for all the sediment cores for the low

- impact condition (1920s through

1960s) and the existing condition (1990s). The target TP concentration for the low

- impact

condition was calculated by assuming that the quotient between the average low

- impact TP

accumulation rate and the target TP concentration equals the quotient between the existing TP

accumulation rate and the existing TP concentration.

Annual average TP concentrations for Lake Monroe from 1990 through 1999 were calculated

based on TP measurements retrieved from IWR Database Run

- 35. The calculated long

- term

average annual mean TP concentration for this period was 0.08 mg/L. Using the accumulation

rates for the low

- impact and existing condition s listed in Table 3.3 , the estimated target TP

concentration f or the low

- impact condition wa s about 0.06 mg/L.

Table 3.3

. TP Sediment Accumulation Rate for Low

- Impact and Existing Condition s

1 **μ** g/cm 2 /yr = Micrograms per square centimeter per year

- = Empty cell/no data

Sediment Core ID Low

- Impact

Condition (1920s

thr ough 1960s)

–

Year Low

- Impact

Condition (1920s

through 1960s)

–

Accumulation Rate

(μg/cm 2 /yr) 1 Existing Condition

(1990s)

–

Year Existing Condition

(1990s)

–

Accumulation Rate

(μg/cm 2 /yr) 1

LM06

- 03 1933 3.6 1995 7.4

LM28

- 03 1922 7 1998 37

LM28

- 03 1960 17 199 8 37

LM31

- 03 1931 6.0 1992 34

LM32

- 03 1921 16 1994 36

LM32

- 03 1956 19 1994 36

LM50

- 03 1927 95 1998 55

LM50

- 03 1940 28 1998 55

LM50

- 03 1952 38 1998 55

- Average : 26 Average : 34



### As mentioned in the pre ceding text, because of the possible interferen ce from denitrification, the

TN target was not developed based on results from the paleolimnological studies. Instead, a

correlation between annual average TN and TP concentrations was established for the period

from 1996 through 2007. Figure 3.4 shows the correlation between annual average TN and

annual average TP concentrations for Lake Monroe. Assuming that the same correlation exists

under the low

- impact condition, the target TN concentration derived was 1.18 mg/L.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 47 Figure 3.4. Correlation between Annual Average TN and TP Concentrations for

Lake Monroe



### Paleolimnological studies conducted in Lake Harney were not used to develop the nutrient

targets. This was because the four sediment cores collected and dated for Lake Harney were

mostly collected from areas with the thickest organic sediments and floc. While results from

these cores are valuable in demonstrating a trend of increasing nutrient accumulation rates in

recent years compared with the low

- impact historical condition (suggesting elevated nutrient

concentrations in the lake in the 20 th 

### century), it may not be totally appropriate to use these data

to quantify the nutrient concentrations under the low

- impact condition for Lake Harney, because

these cores may not be completely representative of the nutrient accumulation rate across the

whole lake. In fact, three out of four dated sediment cores were almost completely composed of

gyttja. Therefore, it was hard to exclude the possibility that the high nutrient accumulation rates

observed at th ese sites might have resulted from sediment focusing. Sediment focusing is the

process through which sediments move from the shallow littoral zone to the deeper part of the

lake, instead of accumulating from the natural sedimentation process.

Because of the general similarities between Lake Harney and Lake Monroe, as shown in Table

3.1 , the nutrient targets developed for Lake Monroe should also meet the goal of protecting

Lake Harney. In this TMDL analysis , while different chl a concentration targets were developed

for Lake Harney and Lake Monroe, the nutrient targets for the two lakes and their associated

river channels are the same.

TN and TP targets for Lake Harney and Monroe were also derived from a study conducted by

Tetra Tech, Inc., based on data collected from 200 Florida lakes between 1993 and 1997 (Paul

and Gerritsen, 2002). A variety of exploratory analyses of these data suggested that the

strongest organizing forces on the biota of the relatively undisturbed lakes were water color and

pH (Gerritsen et al., 2000). On the basis of these results, the sampled lake regions were y = 13.042x + 0.394

R 2 

### = 0.7382

0.00 0.50 1.00 1.50 2.00 2.50

0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.11 0.12 0.13

Annual Average TP Concentration (mg/L)Annual Average TN Concentration (mg/L)FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 48 aggregated into 5 lake classes, such that the lakes in each class have similar biological

assemblages. The lake classes were created on the basis of water color (greater than or less

than 20 PCUs, pH (greater than or less than 6.5), and ecoregion for acid clear lakes only

(Omernik, 1987: Region 65 in northwest Florida and Region 75 in peninsular Florida).

Several techniques were used in each lake class to establish TN and T P target concentrations

in Paul and Gerri t sen’s 2002 studies. These included the reference lake technique, sediment

diatom reconstructions, morphoedaphic indices, LOESS regression of the trophic L ake

Condition I ndex (tLCI) versus nutrients, and multiple linear regression. Among all the

techniques used, the reference lake technique, LOESS regression of tLCI versus nutrients, and

diatom reconstruction based on paleolimnological data produced meaningful results ( Table 3. 4 ).

Table 3. 4. Summary of P hosphorus/ N itrogen C oncentrations (μg/L) S uggested as

P otential C riteria for F ive D ifferent L ake C lasses in Florida

- = Empty cell/no data

* = N < 6

** NA = Not applicable

Lake Class Methodological

Approach Using 75 th

Percentile of Reference

Distribution Methodologica l

Approach Using LOESS

Regression

( tLCI v ersus n utrients ) Methodological

Approach Using

Paleolimnology

(TROPH1 model)

Acid clear lakes

- - -

EcoRegion 65 10/330 21/473 4*/NA**

EcoRegion 75 10/470 23/776 67*/NA**

Acid colored lakes 42/910 43/1 ,2 02 17*/NA**

Alkaline clear lakes 10/750 17/692 25/NA **

Alkaline colored lakes 73/1

, 110 40/1

, 148 32/NA **



### Since the long

- term average color s for both Lake Harney and Lake Monroe were greater than

20 PCUs and the long

- term average pH s were greater than 6 .5 ( Table 3.1 ) , the se lake s were

considered alkaline colored lake s

. Because no diatom data were available to the Department

when this TMDL report was developed

, and therefore it was impossible to determine whether

the TROPH1 model fitted the condition for Lake Harney and Lake Monroe

, the Department did

not use the result s from this technique. While the reference lake technique and LOESS

regression produced relatively similar results for TN

— about 1,100 mg/L for alkaline colored

lakes

— the TP results from th ese 2 techniques appeared to be different ( Table 3. 4 ).

Paul and Gerritsen (2002) believed that the difference could be caused by the different

responses of different communities to the same nutrient concentration. The y suggested that

40 **μ** g/L of TP should be used as the target concentration, to be more conservative and to

protect downstream waters. However, the Department believes that

, as the LOESS regression

relie d heavily on the biological response to the nutrient concentration, and ma ny factors other

than nutrient concentration per se may influence the response, the results from LOESS are not

as easily interpretable as the results from the reference lake technique. A large standard

deviation wa s indeed associated with the regression curve between tLCI and TP concentration

in Paul and Gerritsen’s study, significantly increas ing the uncertainties of the se target s

. T herefore , in this TMDL, only the TN and TP concentrations from the reference lake technique,

which are 1.100 and 0.073 mg/L, respectively, were included as potential candidates for nutrient

target development

.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 49 Table 3.5 summarizes the nutrient targets developed using different methods. The candidate

TP targets ranged from 0.06 to 0.073 mg/L, and the candidate TN targets range d from 1.10 to

1.22 mg/L. Median values were calculated based on these candidate targets and used as the

final nutrient targets for Lake Monroe, Lake Harney, and the impaired Middle St. Johns River

segments. The final targets for TN and TP for this TMDL are 1.18 and 0.0 68 mg/L, respectively.

For the TP target, the method detection limit for the most commonly used method to measure

TP is 0.01 mg/L. Therefore, instead of using 0.068 mg/L as the target, this report uses 0.07

mg/L as the final TP target.

Tab le 3. 5. Summary of Nutrient Targets

Method TN

(mg/L) TP

(mg/L)

Nutrient TSI Equal to 60 1.22 0.068

Paleolimnolo g ical Studies/TN

- TP Correlation 1.18 0.060

75 th Percentile Reference Lake Method 1.11 0.073

Final Targets : 1.18 0.0 68 (0.07)



### C hl a concentrations that could be achieved after achieving the TN and TP targets were

estimated on the basis of the relationship between the annual average chl a and annual average

nutrient concentrations shown in Figures 3.1 and 3.2 . The achievable chl a concentrations for

the upstream and downstream segments were calculated as the mean values between the

achievable chl a concentrations estimated on the basis of the chl a

- TP and chl a

- TN relationship s

. These concentrations are 5. 8 **μ** g/L for the river segments above the Lake Jesup outlet and 9. 1

**μ** g/L for the river segment s below the Lake Jesup outlet. The y correspond to TSI Chla 

### of 42 and

48, respectively

, using the TSI equation by Huber et al. (1982) for Florida lakes. Achieving

the se TSI values will ensure that Lake Harney and Lake Monroe and associated Middle St.

Johns River segments are kept in a lower mesotrophic status and that healthy and balanced

aquatic flora and fauna are maintained in these segments

. Table 3. 6 summarizes t he TN, TP,

and chl a (TSI) targets for all the impaired Middle St. Johns River segments.

Table 3.6

. Target Nutrient and Achievable Chl a Concentrations (TSI) for Impaired

Middle St. Johns River Segments

WBID TN

(mg/L) TP

(mg/L) C hl **a** or TSI

2964A 1.18 0.07 51 (TSI)

2964 1.18 0.07 5. 8 **μ** g/L

2893F 1.18 0.07 5. 8 **μ** g/L

2893E 1.18 0.07 9. 1 **μ** g/L

2893D 1.18 0.07 54 (TSI)

2893C 1.18 0.07 9. 1 **μ** g/L



## 3.2. **2 Dissolved Oxygen** 

Florida’s DO criterion for Class III freshwater bodies states that DO “shall not be less than 5.0

mg/L, and the normal daily and seasonal fluctuations above this level shall be maintained.”

However, DO concentrations in ambient waters can be affected by many factors. For example,

DO solubility can be influenced by temperature and salinity. DO enrichment processes can beFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 50 influenced by reaeration, which is controlled by flow velocity and water depth, and the

photosynthesis of phytoplankton, periphyton, and other aquatic plants. DO consumption from

the decomposition of organic materials in the water column and sediment, the oxidation of some

reductants such as ammonia and metals, and respiration by aquatic organisms can all

contribute to reduced DO concentrations in the water column.

The Middle St. Johns River segments receive a large quantity of dark colored water from

surrounding wetland s and sandy forest land s in the immediate watershed

, and also from the

Upper St. Johns River and Econlockhatchee River . T he DO concentration in this water in some

seasons could be naturally low because of the high bacteria respiration supported by a large

and constant supply of humic dissolved organic carbon (DOC). Although the major portion of

the humic DOC pool is usually recalcitrant to most bacteria species, some species adapted to

living in blackwater systems can readily use it to support their growth.

Bacteria l activities can be significantly stimulated if nitrogen and phosphorus are added into the

system because they provide bacteria with nutrients. The f urther stimulation of bacteria l

activities can be observed if labile DOCs , such as those released by algal population s , increase

in the water column. As the algal biomass is influenced by the availability of nutrients,

controlling the nutrient concentrations will indirectly control the availability of la bile DOCs in the

water

, so that the DO depression due to the bacteria l activities can be alleviated

.

Another source of DO consumption may originate from the organic materials accumulated in the

river floodplain and at the bottom of contributing wetlands. Due to the limited amount of time

available for completing this analysis , factors that affect DO concentration in the impaired river

segments were not examined by measuring directly the actual DO consumption rate from each

source. Instead, TN, TP, and B OD concentrations were treated as the focus of th e analysis

. The p ossible impacts of these nutrients and organic carbon on DO level s were analyzed by

examining the correlations between DO and TN, TP, and BOD concentrations.

To analyze the possible correlation between DO and nutrients and BOD, data for the period

from 1996 through 2007 for all impaired river segments were retrieved from the Department’s

IWR database Run_35. Data for the upstream segments ( WBIDs 2964A, 2964, 2893F) and

downstream segments ( WBIDs 2893E, 2893D, and 2893C) were aggregated into upstream and

downstream analysis units and analyzed separately. Because DO concentration does not

respond to the change in nutrient concentrations instantaneous ly , to analyz e the DO and

nutrient concentrations, monthly average DO and nutrient concentrations were calculated and

correlation analyses were conducted based on month ly average DO and nutrient

concentrations. Figure 3. 5 shows DO

- TP relationships for the upstream and downstream

segments, respecti vely, and Figure 3. 6 show s DO

- TN relationships for the upstream and

downstream segments, respectively.

Figures 3. 5a and 3. 5b show that, for the period from 1996 through 2007, statistically significant

inverse correlation s between monthly average DO and TP concentrations were found in the

river segments both upstream and downstream of the Lake Jesup outlet (p<0.05) . Although the

correlation coefficients were relatively low (0.27 for upstream and 0.12 for downstream),

consider ing the number of data points involved, these correlation s are biologically significant.

Th e results indicate that, in both upstream and downstream river segments, at least to a certain

extent, elevated phosphorus concentration is responsible for some observed low DO

concentration s

. Another interesting point i s that both the slopes and intercepts were very similarFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 51 Figure s 3. 5 a, b

. Functional Relationship between DO and TP Concentrations in

River Segments Upstream ( a ) and Downstream ( b ) of the Lake Jesup

Confluence



### A

y = -21.598x + 8.3139

R 2 

### = 0.2719

0 2 4 6 8 10 12 14

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4



### TP Concentration (mg/L)DO Concentration (mg/L)



## B

y = -18.16x + 8.3649

R 2 

### = 0.1215

0 2 4 6 8 10 12 14

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35



### TP Concentration (mg/L)DO Concentration (mg/L)FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 52 between the upstream and downstream curve s , suggesting that p hosphorus concentration

influence s DO concentration in both the upstream and downstream segments in similar ways.

Examining the lower edge of the data distribution also suggest s that, if the monthly average TP

concentration is reduced to about 0.068 mg/L, the vast majority of the monthly average DO

concentration would be higher than 5.0 mg/L.

No strong correlations were observed between DO and TN concentrations. Although a

statistically significant correlati on was observed between DO and TN concentrations in the

upstream segments, the correlation coefficient was less than 0.1. The DO and TN correlation in

the downstream segments was not statistically significant ( Figures 3. 6a and 3.6b ) . These

results suggested that phosphorus may play a more important role than nitrogen in controlling

DO concentrations in these impaired waters.

Because significant correlations indeed exist between DO and TP concentration s , and it

appears that if the monthly average TP concentration can be reduced to about 0.07 mg/L, the

majority of DO concentration s would be higher than 5.0 mg/L . W hether the 5.0 mg/L DO

concentration can be achieved all the time in these river segments is not certain. This is

because, due to the input of hu mic DOC from the watershed , low DO can be caused at least to

a certain extent by this natural process. Figures 3. 7a and 3.7b demonstrate correlations

between DO concentration and color in river segments both upstream and downstream of the

Lake Jesup outlet. These results indicate that, while reducing TP loading into the impaired river

segments may alleviate the anthropogenic impacts that caused the low DO, part of the low DO

concentration in the system is a natural phenomenon and will exist even when nutr ient targets

are achieved

.

BOD was also considered as a possible causative pollutant for observed low DO in some

impaired St. Johns River segments included in this TMDL report. When TMDLs were

developed for these waters, there were not enough BOD data for the type of correlation

analys es conducted for nutrients . However, comparing individual BOD and chl a data revealed

statistically significant correlations between these two parameters for river segments both

upstream and downstream of the Lake Jesup outle t ( Figures 3. 8a and 3. 8b ) (p<0.05). For river

segments downstream of the Lake Jesup outlet, the variance in chl a concentration explained

close to 80 percent of the BOD variance. This suggests that most of the BOD in these

segments was most likely from the algal biomass.

BOD concentrations in up stream segments showed a lower correlation coefficient with chl a

concentrations (R 2 

### = 0. 36 ). As chl a concentrations in the upstream segments were significantly

lower than in the downstream segments, the influence of humic DOC on the BOD

- chl a

correlation may become significant. However, the BOD

- chl a correlation

, based on a combined

dataset from both the upstream and downstream segments

, still has a correlation coefficient of

close to 75 percent ( Figure 3. 8c ). Thi s indicates that the BOD concentration in the Middle St.

Johns River is controlled by algal biomass, which

, in turn, suggest s that as long as the nutrient

concentrations in these segments are controlled, the BOD concentration and its negative impact

on DO concentration will be reduced. Based on these results , this TMDL analysis focuses on

controlling nutrient concentration s in the impaired river segments to restore their normal function

and protect their designated uses

.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 53 Figure s 3. 6 a, b

. Functional Relationship between DO and TN Concentrations in

River Segments Upstream ( a ) and Downstream ( b ) of the Lake Jesup

Confluence



### A y = -1.3382x + 8.5318

R 2 

### = 0.0955

0 2 4 6 8 10 12 14

0 0.5 1 1.5 2 2.5 3 3.5 4



### TN Concentration (mg/L)DO Concentration (mg/L)



## B y = 0.2905x + 6.1738

R 2 

### = 0.0058

0 2 4 6 8 10 12 14

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 

### TN Concentration (mg/L)DO Concentration (mg/L)FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 54 Figure s 3. 7 a, b

. Functional Relationship between DO and Color in River

Segments Upstream ( a ) and Downstream ( b ) of the Lake Jesup

Confluence



## A

y = -0.0094x + 8.1514

R 2 

### = 0.233

0 2 4 6 8 10 12 14



### 0 200 400 600 800 1000

Color (PCU)DO Concentration (mg/L)



## B

y = -0.0112x + 8.3834

R

2 = 0.2896



### 0 2 4 6 8 10 12 14

0 100 200 300 400 500 600 700 800 900 

### Color (PCU)DO Concentration (mg/L)FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 55 Figure s 3. 8 a, b, c

. Correlation between BOD and Chla Concentrations in River

Segments Downstream ( a ) and Upstream ( b ) of the Lake Jesup Outlet

and for a Combined Dataset from both Upstream and Downstream

Segments (c)

A

y = 0.1252x + 0.589

R 2 = 0.7883

0 2 4 6 8 10 12 14

0 20 40 60 80 100 120

Chla Concentration (ug/L)BOD Concentration (mg/L)

B

y = 0.043x + 1.6366

R 2 = 0.3616

0 0.5

1 1.5

2 2.5

3 3.5

4

0 5 10 15 20 25 30 35 40 45

Chla Concentration (ug/L)BOD Concentration (mg/L)

C

y = 0.1051x + 1.1704

R 2 = 0.7415

0 2 4 6 8 10 12 14

0 20 40 60 80 100 120

Chla Concentration (ug/L)BOD Concentration (mg/L)FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 56 

# Chapter 4: ASSESSMENT O F SOURCES

4.1 Types of Sources

An important part of the TMDL analysis is the identification of pollutant source categories,

source subcategories, or individual sources of the pollutant of concern in the target watershed

and the amount of pollutant loading contributed by each of these sources. Sources are broadly

classified as either point sources or nonpoint sources. Historically, the term “ point sources ” has

meant discharges to surface waters that typically have a continuous flow via a discernable,

conf ined, and discrete conveyance, such as a pipe. Domestic and industrial wastewater

treatment facilities (WWTFs) are examples of traditional point sources. In contrast, the term

“ nonpoint sources ” was used to describe intermittent, rainfall

- driven, diffuse sources of pollution

associated with everyday human activities, including runoff from urban land uses, agriculture,

silviculture, and mining; discharges from failing septic systems; and atmospheric deposition.

However, the 1987 amendments to the Clean Water Act redefined certain nonpoint sources of

pollution as point sources subject to regulation under the EPA’s National Pollutant Discharge

Elimination System ( NPDES ) Program. These nonpoint sources encompassed certain urban

stormwater discharges, includin g those from local government master drainage systems,

construction sites over five acres, and a wide variety of industries (see Appendix A for

background information on the federal and state stormwater programs).

To be consistent with Clean Water Act defi nitions, the term “point source” is used to describe

traditional point sources (such as domestic and industrial wastewater discharges) AND

stormwater systems requiring an NPDES stormwater permit when allocating pollutant load

reductions required by a TMDL ( see Section 6.1 on Expression and Allocation of the TMDL).

However, the methodologies used to estimate nonpoint source loads do not distinguish between

NPDES and non

- NPDES stormwater discharges, and as such, this source assessment section

does not make any distinction between the two types of stormwater.



## 4.2 Potential Sources of Pollutants in the Middle St. Johns River Basin

**4.2.1 Point Sources** 

4.2.1.1 Wastewater Point Sources

Seven NPDES

- permitted facilities were identified in the watershed s that discharge to the part of

the St. Johns River between the confluence with the Econlockhatchee River and the confluence

with the Wekiva River

. Figure 4.1 shows the locations of these NPDES

- permitted facilities.

Five of the m are concrete batch plants (CBPs) : Cemex

- Orange City C BP (FLG110451), Inland

Materials

- Deltona CBP (FLG110324), Florida Rock Industries

- Sanford CBP (FLG110194),

Cemex

- Sanford CBP (FLG110598), and Cemex

- Sanford

- Lake Mary Road Ready Mix Plant

(FLG110320). (It should be noted that, although F LG110451 and FLG110324 are not located

with in the boundary of any impaired WBID, they are located with in the watershed boundary of

these impaired river segments.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 57 Figure 4.1

. NPDES -P ermitted F acilities L ocated in the Watershed s D isc h arging to

the I mpair ed Middle St. Johns River S egmentsFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 58 Section 4.2.2.1 discusses d etails of the difference between the WBID boundary and watershed

boundary for impaired river segments

. All these facilities are covered by generic permits, which

require that the facilities meet certain treatment requirements but have no requirements for

routine monitoring. Untreated discharges from the facilities may be high in turbidity and may

also change the pH of receiving waters, but they are generally not considered significant

source s of nutrients.

Other than the CBP s, a power plant, the FPL Sanford Steam Electric Power Plant (FL0001554)

, is located near the north ern bank of WBID 2893C

, downstream of Lake Monroe (950 South

Highway 17

- 92, DeBary, FL ). The facility consists of 3 fossil fuel

– powered

, steam electric

– generating units (Unit s 3, 4, and 5) with nominal ratings of 150 , 400, and 400 megawatts ( MW )

, respectively. The facility’s surface discharge consists of once

- through cooling water, potential

cooling pond overflow and reverse osmosis reject, boiler blowdown, metal cleaning waste,

industrial and nonindustrial stormwater

, and tank farm diked area runoff. For now, based on its

permit, the facility discharges to the St. Johns River segments downstream of Lake Monroe

through its main effluent point D

- 001 (located approximately at Latitude: 28 0 

### 50 ’ 

### 29 ” 

### , Longitude:

81 0 

### 19 ’ 

### 25 ” 

### ), at a discharge rate of 125,028 gallon s per minute (gpm), of which 116,000 gpm are

once

- through cooling water, and 9,028 gpm are auxiliary equipment cooling water.

Most of the other nonstormwater internal discharges are routed to a cooling pond. Discharge

from the cooling pond directly to the St. Johns River is only allowed once per year to test

emergency spillway gates ( the test typically lasts only about several hours), in cases of extreme

rainfall events, or to prevent the loss of property or life. Approximately 5

, 000 gpm of water from

the cooling pond, on an average annual basis, are discharged through D

- 001. The facility’s

permit does not require nutrient monitoring at D

- 001. No nutrient data were identified from the

Department’s permit compliance system (PCS) database and data monitoring report (DMR)

database whe this TMDL report was developed.

Because the majority of the discharge is once

- through cooling water from the St. Johns River,

the facility is not considered a major nutrient contributor to the impaired river segments included

in this report. The facility will be allowed to discharge to its current permit limit. However, it is

recommended that the nutrient concentrations at D

- 001 be monitored when the facility renews

its discharge permit.

A domestic WWTF , the Sanford/North WWTF (FL0020141)

, is located close to the northwestern

bank of Lake Monroe (1201 West Seminole Boulevard, Sanford, FL) ( Figure 4.1 ). Based on the

permit issued, the facility has an existing 7. 3- million

- gallons

- per

- day ( mgd ), annual average

daily flow (AADF) permitted capacity

, complete mix activated sludge domestic WWTP

, consisting of flow equalization, influent screening, grit removal, aeration, secondary clarification,

chemical feed, filtration, chlorination, followed by dechlorination prior to surface water discharge,

with sludge thickening, aerobic digestion

, and the dewatering of residuals.

The facility has an existing 1.0 mgd AADF permitted discharge to the St. Johns River at D

- 001

, located at Latitude: 28 0 

### 50 ’ 

### 30 ” 

### , Longitude: 81 0 

### 19 ’ 

### 00 ” 

### , east of the Highway 17

- 92 bridge at the

outlet of Lake Monroe. Permit limits for pollutants include a limit of 12.0, 15,0, 18.0, and 24.0

mg/L for annual average, monthly average, weekly average, and single sample concentrations,

respectively, for TN ; and a limit of 4.0, 5.0, 6.0, and 8.0 mg/L for annual average, monthly

average, weekly average, and single sample concentrations, res pectively, for TP

.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 59 The majority of the treated wastewater from the facility is routed to a slow

- rate public access

reuse system (R

- 001) consisting of 1,800 irrigated acres as well as the facility’s other reuse

service area. The existing permitted capacity for reuse is about 7.14 mgd AADF with an

anticipated future reuse capacity of 12 .08 mgd AADF.

Table 4.1 lists the annual TN and TP loadings from the facility. The flow, BOD, TN, and TP

concentration data used in estimating the annual loading were retrieved from the Department’s

PCS database. To calculate the annual loadings, monthly loadings were first calculated by

multiplying the monthly discharge rate for each month by the monthly average pollutant

concentration. Monthly average loadings were then aggregated into annual loadings. The

period of record used for the annual loading estimation is 1996 through 2007. Long

- term

average annual loadings were calculated for the period from 1996 through 2007

, as well as the

period from 1997 through 2003. The l ong

- term average loadings calculated using the latter

period were produced to compare with the nonpoint source loading simulated for the period

from 1997 through 2003 by the SJRWMD ( Dr. Y. Jia , personal communication).

Table 4. 1. An nual TN, TP, and BOD Loadings from the Sanford/North

WWTF

1 Mean (VP) represents the long

- term average annual loading for the verified period (2000

– 2007).

2 Mean (HSPF) represents the long

- term average annual loading for the modeling period (1997

– 2003) f or the HSPF M odel set up by

the SJRWMD.

Year 

### TN Annual Loading

(lbs/year) TP Annual Loading

(lbs/year)

1996 49

, 889 4, 847

1997 18

, 026 2, 099

1998 18

, 004 1, 606

1999 7, 269 729

2000 8, 020 560

2001 33

, 914 4, 056

2002 54

, 096 6, 009

2003 60

, 358 7, 683

2004 46

, 229 6, 016

2005 86

, 655 12

, 996

2006 8, 203 1, 375

2007 8, 244 1, 614

Mean (VP) 1 

### 38

, 215 5, 039

Mean (HSPF) 2 

### 28

, 527 3, 249



### 4.2.1.2 Municipal Separate Storm Sewer System Permittees

Like other nonpoint sources of pollution, urban stormwater discharges are associated with land

use s and human activities, and are driven by rainfall and runoff processes leading to the

intermittent discharge of pollutants in response to storms. The 1987 amendments to the Clean

Water Act designated certain stormwater discharges from urbanized areas as point sources

requiring NPDES stormwater permits. In October 2000, the EPA authorized the Department to

implement the NPDES S tormwater P rogram in all areas of Florida

, except for t ribal lands. The

Department’s authority to admini ster the NPDES P rogram is set forth in Section 403.0885, F .S

.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 60 The three major components of the NPDES stormwater regulations are as follows :

(1) **Municipal Separate Storm Sewer System (MS4) P**  **ermits** that are issued to

entities that own and operate master stormwater systems, primarily local

governments. Permittees are required to implement comprehensive stormwater

management programs designed to reduce the discharge of pollutants from the

MS4 to the maximum extent practicable.

(2) **Stormwater Associated with Industrial Activities,** which is regulated primarily

by a multisector general permit that covers various types of industrial facilities.

Regulated industrial facilities must obtain NPDES stormwater permit coverage

and implement appropriate pollution prevention techniques to reduce the

contamination of stormwater.

(2) **Construction A**  **ctivity G**  **eneric P**  **ermits** for projects that ultimately disturb one

or more acres of land and that require the implementation of stormwater

pollution prevention plans to provide erosion and sediment control during

construction.

In addition to the NPDES stormwater construction permitting regulations, Florida was the first

state in the country to require the treatment of stormwater for all new developments with the

adoption of the s tate Stormwater Rule in late 1981. The Stormwater Rule is a technology

- based

program that relies on the implementation of best management practices ( BMPs ) designed to

achieve a specific level of treatment (i.e., performance standards)

, as set forth in Rul e 62

- 40,

F.A.C. In 1994, state legislation created the Environmental Resource Permitting P rogram to

consolidate stormwater quantity, stormwater quality, and wetlands protection into a single

permit. Currently , the majority of E nvironmental R esource P ermi ts are issued by the state’s five

water management districts, although the Department continues to do the permitting for

specified projects.

The NPDES S tormwater P rogram was implemented in phases, with Phase I MS4 areas

including municipalities having a population above 100,000. Because the master drainage

systems of most local governments in Florida are interconnected, the EPA implemented Phase

1 of the MS4 P ermitting P rogram on a countywide basis, which brings in all cities, Chapter 298

urban water contr ol districts, and the Florida Department of Transportation (FD OT ) throughout

the 15 counties meeting the population criteria. Phase II of the NPDES Program was expanded

in 2003 and requires stormwater permits for construction sites between 1 and 5 acres, and for

local governments with as few as 10,000 people.

Although MS4 discharges are technically referred to as “point sources” for the purpose of

regulation, they are still diffuse sources of pollution that cannot be easily collected and treated

by a centr al treatment facility. All Phase 1 MS4 permits issued in Florida include a reopener

clause allowing permit revisions for implementing TMDLs once they are formally adopted by

rule. Florida’s Phase II MS4 Generic Permit has a “self

- implementing” requiremen t once

TMDLs are adopted that requires the MS4 permittee to update its stormwater management

program ( as needed ) to meet its TMDL allocations.

Table 4. 2 lists the counties, cities, and FDOT district s with MS4 permits influenced by TMDLs in

the Middle St. Johns River Basin

.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 61 Table 4. 2. MS4 Permittees Affected by TMDLs in the Middle St. Johns River Basin

MS4 Permit

Phase Permit Name Permit Number County

I Seminole County FLS000038 Seminole

I City of Lake Mary FLS000038 Seminole

I City of Sanford FLS000038 Seminole

II FDOT Turnpike District FLR04E0 49 Multiple

II FDOT District 5 FLR04E024 Multiple

II Brevard County FLR04E052 Brevard

II Lake County FLR04E 106 Lake

II Volusia County FLR04E0 33 Volusia

II City of DeBary FLR04E 120 Volusia

II City of Deltona FLR04E0 99 Volusia

II City of Lake Helen FLR04E 125 Volusia



## 4.2.2 Nonpoint Sources

Other than the TN and TP loadings from NPDES

- permitted point sources, the majority of

nutrient loadings are generated from nonpoint sources in the watershed. Major nonpo int

sources may include, but are not limited to, loadings through surface runoff, ground water, and

atmospheric deposition directly onto the surface of receiving waters. Pollutant loadings

produced through these processes are primarily driven by weather, especially rainfall. I n a

specific watershed , the percent imperviousness of the land cover, especially the percent

imperviousness directly connecting to the receiving water, determines the hydrology and

pollutant loadings into the receiving water. In res idential areas where septic tanks are the major

way to dispose of domestic wastewater, failed septic tank s elevate pollutant loadings into the

receiving water. In both urban and agricultural areas where structur al or nonstructur al BMP s

are applied, pollutant loadings can be reduced either at the source or retained in areas

downgradient of the source before they enter the receiving water.

In developing TMDL s for the impaired St. Johns River segments covered in this report, pollutant

load ing production and attenuation through all these processes were simulated using a

Hydrologic Simulation Program

– Fortran (HSPF) Model set up and calibrated by the SJRWMD

(Dr. Y . Ji a, personal communication). HSPF (Bick n ell et al.

, 2004 ), developed and maintained

by Aqua Ter ra and the EPA, is a comprehensive package that can be used to develop a

combined watershed and receiving water model. It can simulat e various species of nitrogen

and phosphorus, chl a , BOD, coliform bacteria, metals, and DO concentrations in receiving

wat ers. The model has three major modules , as follows, that simulate pollutant loadings from

the watershed and in

- water transport of the pollutants and their effects on chl a and DO

concentrations :

**•** The PERLND Module performs a detailed analysis of surface and subsurface flow

for pervious land areas based on the Stanford Watershed Model. This model

simulates watershed hydrology through e xamining the processes starting from rain

precipitation, canopy intercept, storage, and evaporation ; land surface depressi on

storage and evaporation ; infiltration ; upper

- zone and lower

- zone storage and

evapotranspiration ; interflow and baseflow ; the loss of water to deep ground water

storage ; and the formation of surface runoff. Several model parameters, includingFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 62 the lower zone storage nominal (LZSN, defining the maximum storage capacity of

the lower zone of the model domain), upper

- zone storage nominal (UZSN,

defining the maximum storage capability of the upper zone of the model domain),

lower

- zone evapotra n spiration potent ial (LZETP, defining the lower

- zone

evapotranspiration potential), and infiltration (INFILT, defining the infiltration rate of

the soil), are the key parameters that control the total amount of runoff created in

the watershed. In addition, the watershed f low

- path slope (SLSUR), the

roughness of the land surface (NSUR), and ground water recession rate

(AGWRC) are parameters that may significantly influence the hydrograph.

Water quality constituents can be simulated by the HSPF using different methods.

S ed iment in pervious land runoff is simulated by examining sediment detachment

during rainfall events and reattachment during dry periods

, with the potential for

washoff during runoff events. For other water quality constituents, watershed

loadings are simulated as the sum of the loadings through surface runoff, interflow,

and baseflow. The surface runoff loadings are usually simulated by examining the

buildup and wash

- off rates of the water quality constituents. Loadings through

interflow and baseflow are simulated by multiplying the model

- simulated inflow and

baseflow by user

- defined concentrations of water quality constituents in the

interflow and baseflow. In addition, runoff loadings can be determined using the

“potency factor ,” which relates constitue nt washoff to sediment loadings created in

the watershed

. In this TMDL analysis

, the surface loadings of water quality

constituents were simulated using the buildup and wash

- off method.

**•** The IMPLND M odule analyzes hydrology and water quality constituent loadings in

impervious areas of the watershed. This module only simulates the surface

hydrology and pollutant loadings contribute d to the receiving water through

surface runoff. It does not consider subsurface processes. The hydrology of the

watershed’s impervious areas is primarily determined by the surface depression

storage (RETSC), flow

- path slope (SLSUR), roughness of the land surface

(NSUR), and evaporation. B uildup and wash

- off algorithms are used to determine

pollutant loadings through surface r unoff

.

**•** The RCHRES Module is used to simulate flow routing and water quality in

receiving waters, which are assumed to be one

- dimensional. It receives the flow

and water quality constituents simulated by the PERLND and IMPLND Modules

and simulates the flow velocity, water depth, and kinetics of water quality

constituents in the receiving water. The RCHRES simulates the following:

- S edimentation ;

- R esuspension ;

- S ediment release ;

- U ptake by algae ( which turns inorganic nutrients into the organic form );

- D eat h and decay of algal cells ( which turn organic nutrients back to inorganic forms );

- N itrification ( which turns ammonia into nitrate );

- D enitrification ( which turns nitrate into nitrogen gas and causes the nitrogen to be lost to

the atmosphere );

- A tmospheric deposition directly onto the surface of the receiving water ; and

- O utput of nutrients into the downstream segments.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 63 In addition, the RCHRES Model considers the impacts of light availability,

temperature, and flow velocity on the growth and death of alga e, which

significantly influence nutrient dynamics in the receiving water.

More detailed descriptions of the HSPF M odel and the functions of different modules can be

obtained from Bicknell et al. (2004). Detailed model parameters for the HSPF Model can be

obtained from its UCI file ( Appendix B ).

The HSPF Model used several types of data to simulate nonpoint source loadings, including

basin delineation and boundary condition; land uses; estimated pollutant loadings from septic

tanks, ground water, and direct atmospheric deposition; the attenuation of pollutant loads by

BMPs; and rainfall and other meteorological data.

4.2.2.1 Basin Delineation and Boundary Condition

The SJRWMD provided the delineation of the watershed s draining to the impaired Middle St.

Johns segments. For this TMDL report, the model domain only includes the watershed adjacent

to the impaired waterbodies. Pollutant loadings entering these impaired waterbodies from the

Upper St. Johns River, Econlockhatchee River, and Lake Jesup were treated as boundary

conditions for the HSPF Model . Boundary loadings were estimated based on the measured

flow and pollutant concentrations.

It should be noted that the watersheds and sub

- basin delineations used by the SJRWMD for

HSPF modeling were differen t from the WBID boundaries that the Department used to conduct

a water quality assessment. As WBID boundaries do not necessarily reflect the actual

watershed , in this TMDL analysis , the SJRWMD boundaries were used for the HSPF modeling.

The HSPF Model dom ain includes two major basins: the Lake Harney Basin and the Lake

Monroe Basin

. The entire model domain includes 19 sub

- basins, based on the stream network

and topography of the watershed, of which 11 and 8 sub

- basins were delineated for the Lake

Harney and Lake Monroe Basins , respectively. Figure 4.2 shows the delineation of the two

major basins , the sub

- basin delineation s in each major basin

, and the directions of the flow

between sub

- basins

. The figure also shows the WBID boundaries used by the Depart ment for

water quality assessment purpose s. Based on Figure 4.2 , the six impaired WBIDs wer e aggregated into four HSPF sub

- basins: Sub

- basin 8 ( WBID 2964A), Sub

- basin 11 ( WBIDs

2964 + 2893F), Sub

- basin 15 ( WBIDs 2893E + 2893D), and Sub

- basin 20 ( WBID 289 3C).

4.2.2. 2 Land Uses

A geographic information system ( GIS ) land use map for the areas covered in the model domain

was obtained from the SJRWMD GIS database. The land use information wa s created primarily

based on aerial photographs taken in 1999 and 20 00. The SJRWMD identified over 100

different land use classes in the watershed based on the Florida Land Use Classification Code

Sysem (FLUCCS). For modeling purposes, these were aggregated into 13 major land uses following the Land Use Classification Table developed by the SJRWMD’s engineering division

(Bergman

, 2004). The consolidation of the original land use classes was mainly based on

similarities in hydrologic properties and nutrient loadings

. Table s 4.3 a and 4.3b and Figure 4. 3

show the distribution of these aggregated land uses in the model domain. Appendix C shows

the relationship between the HSPF land use classification and FLUCCS code.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 64 Figure 4.2

. HSPF Model Basin and Sub

- basin Delineations and Flow DirectionFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 65 Figure 4. 3. Land U se D istrib ution in the HSPF M odel D omainFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 66 Table 4.3a. Land U se Distribution in the Lake Harney Basin

to WBIDS 2964, 2964A, and 2893F

Land Use Acreage % Distribution

Agricultural General 2,524 2%

Agricultural Tree Crop 975 1%

Forest 47,905 33%

High

- Density Res idential 123 0%

Industrial 1,154 1%

Low

- Density Residential 5,254 4%

Medium

- Density Residential 2,070 1%

Mining 223 0%

Open Land 1,069 1%

Pasture 14,164 10%

Rangeland 13,624 9%

Water 632 0%

Wetland 55,389 38%

Total: 145,106 100%



### Table 4.3b. La nd Use Distribution in the Lake Monroe Basin

to WBIDs 2893E, 2893D, and 2893C

Land Use Acreage % Distribution

Agricultural General 1,699 2%

Agricultural Tree Crop 625 1%

Forest 13,132 18%

High

- Density Residential 1,926 3%

Industrial 4,489 6%

Low

- Den sity Residential 4,653 7%

Medium

- Density Residential 19,977 28%

Mining 358 1%

Open Land 1,398 2%

Pasture 3,777 5%

Rangeland 4,462 6%

Water 1,247 2%

Wetland 13,637 19%

Total: 71,380 100%



### Based on Table s 4.3 a and 4.3b , the watershed s that discharg e to Lake Harney ( WBID 2964A)

and its downstream segments ( WBIDs 2964 and 2893F), excluding the watersheds for the

Upper St. Johns River and the Econlockhatchee River, comprise about 145,106 acres. The

watersheds that discharge to the impaired river segments downstream of Lake Jesup, including

Lake Monroe ( WBIDs 2893E, 2893D, and 2893C), are about 71,380 acres . In the Lake Harney

Basin , natural land use s , including open land, forest, water, and wetland, occupy about 72

p ercent of the area

. Urban land use s , including low

- , medium

- , and high

- density residential andFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 67 industrial

, only account for about 6 percent of the total area . In contrast, urban land uses in the

Lake Monroe B asin comprise about 43 percent of the total area

— significantly higher than the

La ke Harney Basin . Natural land uses account for about 41 percent of the Lake Monroe Basin

, with t he remaining 15 percent occupied by agriculture, mining, pastureland, and rangeland

.

Percent impervious area of each land use category is a very important fact or that controls the

quantity and quality of the flow created from a watershed

. Nonpoint pollution monitoring studies

throughout the U nited States over the past 15 years have shown that annual “per acre”

discharges of urban stormwater pollution are positively related to the amount of imperviousness

in land use (WMM User’s Manual 4.1

, 1998). It should be noted that the impervious area

percentages do not necessarily represent directly connected impervious area (DCIA) , which is

the area directly connected to the drainage network with no opportunity for infiltration

. Using a

single

- family residence as an example, rain falls on rooftops, sidewalks, and driveways. The

sum of these areas may represent 30 percent of the total lot. However, much of the rain that

falls on the roof drains to the grass and infiltrates to the ground or runs off the property, and thus

does not run directly to the street.

For the TMDLs covered in this report, only the DCIA s were modeled as imper v ious areas. The

impervious areas that w ere not DCIA s were aggregated into the pervious land areas for model

simulation. The following f our land use types were considered to have DCIA s : low

- , medium

- , and high

- density residential

, and industrial. Percent impervious areas for each land use wer e assigned based on previous modeling experience in the St. Johns River Basin and finalized

through the hydrology calibration. Table s 4.4 a and 4.4b show the percent areas that were

considered impervious in the HSPF Model setup by the SJRWMD

.

Table 4.4 a. P ercent DCIA of Different Land U se Classes in the Lake Harney Basin

Draining to WBIDs 2964, 2964A, and 2893F

Land Use Impervious

Land

(acre s ) Pervious

Land

(acre s ) %

Impervious

Agricultural General 0 2,524 0%

Agricultural Tree Crop 0 975 0%

Forest 0 47,9 05 0%

High

- Density Residential 74 49 60%

Industrial 904 250 78%

Low

- Density Residential 508 4,746 10%

Medium

- Density Residential 693 1,377 33%

Mining 0 223 0%

Open Land 0 1,069 0%

Pasture 0 14,164 0%

Rangeland 0 13,624 0%

Water 0 632 0%

Wetland 0 55,389 0%

Total: 2,179 142,927 2%FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 68 Table 4.4b. Percent DCIA of Different Land Use Classes in the Lake Monroe Basin

Draining to WBIDs 2893E, 2893D, and 2893C

Land Use Impervious

Land

(acre s ) Pervious

Land

(acre s ) %

Impervious

Agricultural General 0 1 ,699 0%

Agricultural Tree Crop 0 625 0%

Forest 0 13,132 0%

High

- Density Residential 1,016 910 53%

Industrial 3,474 1,015 77%

Low

- Density Residential 403 4,250 9%

Medium

- Density Residential 6,526 13,451 33%

Mining 0 358 0%

Open Land 0 1,398 0%

Past ure 0 3,777 0%

Rangeland 0 4,462 0%

Water 0 1,247 0%

Wetland 0 13,637 0%

Total : 11,419 59,961 16%



### 4.2.2.3 Estimate d Pollutant Loadings from Septic Tanks

Septic tanks, failed or functioning, may also contribute pollutant loadings to the receiving wa ter.

Wastewater from failed septic tanks, especially those very close to the receiving waters ( within

50 feet ) ( Dr. Y. Jia, personal communication), may be considered as contributing untreated

wastewater directly to the receiving water. The majority of p ollutant loadings from functioning

septic tanks, when properly installed, can be removed through the physical, biological, and

biochemical processes in the septic tanks and drain field s . However, some pollutant species,

such as nitrate, which has high solubility in water and low absorption capability to soil particle s

,

can still enter ground water and impact the water quality of surface waters through ground

water

- surface water interaction. Therefore, when simulating nonpoint source loadings from a

watershed, the contribution from septic tanks should be carefully considered.

The number of failing septic tanks in the area was estimated on the basis of the reported septic

tank repairs in Seminole County and Volusia County. The number of annual repairs in

Se minole County ranged from 339 to 570 between 1997 and 2002 (Florida Department of

Health [FDOH], 2004

, http://www.doh.state.fl.us/Environment/ostds/statistics/

ost dsstatistics.htm ). To account for the possibility that not all failing septic tanks in the county

were reported and repaired, this analysis used the high end of the reported range as the

average number of failing septic tanks in Seminole County . It was assumed that these failing

septic tanks were distributed evenly in residential areas (including low

- , medium

- , and high

density residential). The total residential area in Seminole County is 60,511 acres

, based on

2000 land use coverage obtained from the SJRWMD. The average number of failing septic

tanks per acre of residentia l area was calculated as 570 / 60,511 ≈ 0.00942 per acre in

Seminole County

. Using the above procedure, the calculated average number of failing septic

tanks per acre of residential area in Volusia County is 0.01198 per acre.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 69 Pollutant contributions from these failing septic tanks were modeled in two ways

, depending on

their proximity to the stream network s in the Lake Harney and Lake Monroe Basins

. For septic

tanks located more than 50 feet from streams and lakes, pollutant loadings were simulated

implicitly and were lumped with the nonpoint pollutant loadings from residential areas. The

septic tanks within 50 feet of streams and lakes were considered direct pipes discharging

untreated wastewater to the stream network. These direct pipes were modeled as point

sources in HSPF.

In the Lake Harney Basin , there are 57 acres of residential areas in Seminole County and 35

acres of residential areas in Volusia County within 50 feet of the stream network. The number

of estimated direct pipes in the Lake Harney B asin is 0.00942 **×** 57 + 0.01198 **×** 35 ≈ 1. This

direct pipe wa s assigned to S ub

- basin 11 in the Lake Harney Basin

. In the Lake Monroe Basin

, there are 99 acres of residential land use in Seminole County and 174 acres of residential in

Volusia County within 50 feet of the stream network. The number of estimated direct pipes in

the Deep Creek watershed wa s 0.00942 **×** 99 + 0.01198 **×** 174 ≈ 3. The se were assigned to 3

sub

- basins ( Sub

- basins 14

, 15

, and 17 ) in the Lake Monroe Basin

. Figure 4.4 shows the sub

basins to which the direct pipe dis charge from septic tanks was assigned.

According to the EPA (1980), the per capita flow rate from a failing septic tank is about 7.18 **×** 10 5



### cfs. The average number of persons per household is 2.59 in Seminole County and 2.32 in

Volusia County (U .S. Census Bu reau, 2000

, http://quickfacts.census.gov/qfd/states/12/12117.

html ). Because the majority of residential areas are located in Seminole County, this analysis

uses the average number of persons per household in Seminole County. The estimated flow

rate from a failing septic tank is 7.18 **×** 10 -5 

### × 2.59 = 1.8 6 **×** 10 -4 

### cfs. Pollutant concentrations of the

effluent of fail ed septic tank s were assumed to equal the average concentration measurement s

in Florida comp i led by Parsons Engineering Science (2000). Table 4.5 shows the average

pollutant concentrations used in this analysis

. It was assumed that the effluent flow rate and

pollutant concentrations were constant over the simulation period.

Table 4.5

. Pollutant Concentrations of Failing Septic Tank Effluent

1 According to Parsons Engineering Science (2000), average measured BOD 5 = 14 1 mg/L

. This analysis assumes that BOD = 2.5

BOD 5

. 2 This analysis treats TN loads from septic tanks as nitrate ( NO 3 ) loads

. 3 This analysis treats TP loads from septic tanks as orthophosphate ( PO 4 ) loads.

Parameters Concentration

(mg/ L )

BOD 1 352.5

TN 2 39.0

TP 3 11.0FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 70 Figure 4. 4. Sub

- basins to Which Direct Pipe Discharge s from Septic Tanks Were

AssignedFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 71 4.2.2 .4 Pollutant Loadings through Ground Water

Part of the rainfall reaching the land surface infiltrates into the ground and becomes ground

water. In the HSPF Model , the infiltration fill s soil water storage

, depend ing on the storage

nominal capacity of dif ferent soil and land use combinations, leaves the system through

evapotranspiration

, and reaches deep ground water. The remaining portions of the infiltration

become interflow (from the upper zone of the soil) and baseflow (from the lower zone of the soil )

and eventually discharge to surface water

. The way in which the SJRWMD set up the HSPF

Model requires user

- defined pollutant concentrations for interflow and baseflow in order to

calculate pollutant loadings through ground water flow . These concentrati ons were defined in

the model based on previous modeling experience (Jia

, 2008). The contributions of pollutant

loadings from ground water were estimated as the product of pollutant concentrations and

interflow or baseflow volume

.

It should be noted that the HSPF Model is not a ground water model and does not explicitly

simulate ground water flow that is not created from rainfall onto the watershed . However,

ground water input created from the area beyond the watershed can sometimes be significant

. This is usually demonstrated through a large gap between the model

- simulated stream flow and

measured stream flow

, even when related model parameters are adjusted to their empirical

extremes

, and there is nothing wrong with the rainfall and evapotranspiration m easurements

.

In this case, regional ground water input can be added into the HSPF Model as a point source

time series or boundary condition. For this TMDL analysis

, two Floridan aquifer springs, Gemini

Springs ( second magnitude) and Green Springs ( third magnitude), were identified ; these springs

are located on the north shore of Lake Monroe and discharge into the lake. The SJRWMD and

USGS have collect ed discharge and water quality data for these springs. Based on the

statistics published by the SJRWMD ( http://sjr.state.fl.us/springs/volusia/index.html ), Gemini

Springs had a long

- term average discharge rate of 10.0 cfs (1996

– 2005), a nitrate and nitrite

concentration of 0.95 mg/L (1995

– 20 05), and a TP concentration of 0.08 mg/L (1996

– 2005). Of

the 0.08 mg/L of TP, about 0.06 mg/L is orthophosphate. Green Springs had a long

- term

average discharge rate of 1.40 cfs (1932

– 2005), a nitrate and nitrite concentration of 0.04 mg/L,

and a TP conc entration of 0.08 mg/L. Of the 0.08 mg/L of TP, 0.07 mg/L is orthophosphate.

Contributions of nitrogen and phosphorus from these springs were added into the HSPF Model

as two point source time series, which discharge directly to Lake Monroe. Figure 4. 5 shows the

location of Gemini Springs and Green Springs.

The Floridan a quifer contribution by upwelling through fractures or faults in the aquifer could be

another source of nutrient s . Based on the Department’s assessment (2005), the portion of the

Middle St. Johns River included in this report has relatively high salinity (as high as 1.44

practical salinity units [ PSU s]) . This indicates a contribution from the Floridan aquifer

, because

the salt is considered trapped relict seawater or deeper

, brackish wat er that entered the Floridan

a quifer when high sea level s inundated lar g e portions of the Florida peninsula. However, when

this TMDL report was written, no data were available to quantify the contribution from this

source. The SJRWMD’s HSPF M odel balance d the hydrology without considering the Floridan

aquifer as a source. While t his approach tends to overestimate the loading from the watershed,

it adds a margin of safety (MOS) to th e TMDL (discussed in detail in Chapter 6).FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 72 Figure 4.5

. Locations of Gemini Springs and Green SpringsFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 73 4.2.2. 5 Pollutant L oadings through Direct Atmospheric Deposition onto the Receiving

Waters

Atmospheric deposition is another source of pollutants to receiving water s . In HSPF modeling,

the atmospheric deposition to the land surface was implicitly simulated as part of the nonpoint

source loadings from the watershed . The direct atmospheric deposition on to the surface of

streams and lakes was modeled explicitly. In HSPF, direct atmospheric deposition wa s treated

in two different ways

, depending on the form of the available data. If the deposition wa s in the

form of a flux (mass per area per time), it wa s considered dry deposition. If the deposition wa s

in the form of rainfall concentration, it wa s considered wet deposition, and the model

automatically combines it with the input rainfall time series to compute the resulting flux.

Th e SJRWMD’s HSPF Model simulates both wet and dry deposition. For the wet deposition,

the model assumed that only inorganic forms of nitrogen and phosphorus are contributed from

atmospheric deposition. Ammonia (NH 4 

### ) and nitrate ( NO 3 

### ) concentrations of wet deposition

were assumed to be the observed mean values, 0.25 and 1.08 mg/ L

, based on data collected

from S ite F32 of the National Atmospheric Deposition Program ( http://nadp.sws.uiuc.edu ) in

Orlando, Florida. The orthophosphate ( PO 4 

### ) concentration of wet deposition wa s assumed to

be 0.009 mg/ L , which is the same concentration of the wet deposition for TP estimated by

Brezonik et al. (1983). Inorganic nitrogen and phosphorus dry deposition rates were assumed

to be 150 milligrams per square meter per year (mg/m 2 

### /yr)of nitrogen and 20 mg/m 2 

### /yr of

phosphorus , respectively. These values were equal to the TN a nd TP dry deposition rates for

the Lake Apopka area . The model also assumed that the inorganic nitrogen dry deposition

contained 75 percent of NO 3 

### and 25 percent of NH 4 

### (Dr. S

. Brandt

- Williams

, SJRWMD, personal

communication). The above

- average concentrations were assumed to be constant through

different seasons in the HSPF Model

.

4.2.2. 6 Attenuation of Pollutant Loads by BMP s

This analysis also considered the attenuation of pollutant loadings by BMP s implemented in the

basins . The BMP i nformation for t he Lake Harney and Lake Monroe B asins came from a GIS

mapping analysis by Huang et al. (2007) that estimated the spatial distribution of several major

BMPs across the entire St. Johns River Basin

. Because of the lack of information regarding the

nonstructural BMP s , only structur al BMPs were considered in this TMDL analysis . Different

BMPs in the watershed s were aggregated into t hree major types : swale, dry detention pond,

and wet detention pond. Table s 4. 6 a and 4.6b list the acreage and percent acreage of different

land uses in the Lake Harney and Lake Monroe B asins , respectively, that are served by each of

these BMPs. Figure 4.6 shows the spatial distribution of BMP treatment areas in the Lake

Harney and Lake Monroe B asins

.

Due to the lack of detailed information regarding the structure and removal efficiencies of each

individual BMP in the modeled basins , the pollutant attenuation effects from these structural

BMPs were modeled at the sub

- basin level in the HSPF Model by treating the BMPs as water

segm ents located between the basin and final receiving water. Table 4.7 lists t he pollutant

removal efficiencies for the structural BMPs . The se removal eff i ciencies were mainly based on

the median values of the reported ranges (EPA

, 1999 ; Center for Watershed Protection

, 2000 ;

C amp Dresser McKee [C DM ], 2002).FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 74 Table 4.6 a. Acreages of Different Land U ses Served with BMPs in the Lake Harney

Basin (WBIDs 2964A, 2964, and 2893F)

- = Empty cell/no data

Land Use Dry Pond Wet Pond Swale No BMP Subtotal % Areas

Served with

BMPs

Agricultural General

- - - 2, 524 2, 524 0.0%

Agricultural Tree Crop 16 3

- 956 975 1.9%

Forest

- - - 47

, 848 47

, 905 0.1%

High

- Density Residential 3 49

- 71 123 42.3%

Industrial 148 554 154 298 1, 154 74.2%

Low

- Density Residential 339 633

- 4, 282 5, 254 18.5%

Medium

- Density

Residential 272 491

- 1, 364 2, 070 34.1%

Mining 2 18

- 203 223 9.0%

Open Land

- - - 1, 069 1, 069 0.0%

Pasture 2 12 9 14

, 141 14

, 164 0.2%

Rangeland 6

- - 13

, 618 13

, 624 0.0%

Water

- - - 632 632 0.0%

Wetland

- - - 55

, 389 55

, 389 0.0%

Total : 788 1,760 163 142,395 145,106 1.9%



### Table 4.6b. Acreages of Different Land Uses Served with BMPs in the Lake Monroe

Basin (WBIDs 2893E, 2893D, 2893F)

- = Empty cell/no data

Land Use Dry Pond Wet Pond Swale No BMP Subtotal % Areas

Served

with BMPs

Agricultural General 62 342

- 1, 295 1, 699 23.8%

Agricultural Tree Crop 118 27

- 480 625 23.2%

Forest

- - - 12

, 431 13

, 132 5.3%

High

- Density Residential 818 542 3 563 1, 926 70.8%

Industrial 868 1, 022 291 2, 308 4, 489 48.6%

Low

- Density Resident ial 1, 998 611

- 2, 745 4, 653 41.0%

Medium

- Density

Residential 3, 394 1, 488 6 15

, 089 19

, 977 24.5%

Mining 8 29

- 321 358 10.3%

Open Land 123

- - 1, 281 1, 398 8.4%

Pasture 172 280 16 3, 309 3, 777 12.4%

Rangeland 176

- - 4, 286 4, 462 3.9%

Water

- - - 1, 247 1, 247 0.0%

Wetland

- - - 13631 13

, 637 0.0%

Total : 7, 737 4,341 316 58,986 71,380 17.4%FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 75 Figure 4.6

. Spatial Distribution of BMPs in the HSPF Model DomainFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 76 Table 4. 7. Pollutant Removal Efficiencies Used in the HSPF Model ( percent )

1 In the HSPF M odel, B OD is used as a pool for organic nitrogen (N) and organic phosphorus (P). The model derives the amount of

organic N and organic P based on available BOD and user

- defined model parameters (Bicknell et al.

, 2004 ).

Pollutant Dry Detention Pond Wet Detentio n Pond Swale

Total Suspended Solids

( TSS ) 50 % 80 % 80 %

Total Ammonia 5% 25 % 15 %

Nitrate + Nitrite 5% 25 % 15 %

PO 4 20 % 55 % 30 %

BOD 1 20 % 35 % 30 %



### 4.2.2.7 Rainfall and Other Meteorological Data

Rainfall is the driving force of the hydrologic processes i n all watershed s. For this TMDL

analysis

, the SJRWMD used hourly Next Generation Radar ( NEXRAD ) rainfall data from

OneRain, Inc. The OneRain NEXRAD rainfall data have a resolution of 2 by 2 kilometer s, and

the spatial range of the data covers the entire SJRWMD area. The SJRWMD developed a GIS

tool, Radar Rainfall Tool Version 6.0, to calculate the areal radar rainfall for a particular

watershed. This analysis used the tool to extract the hourly radar rainfall time series for all 20

sub

- basins in the HSP F Model domain for the Lake Harney and Lake Monroe B asins . The

period of record for NEXRAD rainfall was January 1, 199 5, to December 31, 200 6. Table 4.8

lists the annual average NEXRAD rainfall for the Lake Harney and Lake Monroe B asins for this

period

.

Table 4.8

. Annual Rainfall (inches) for the Lake Harney and Lake Monroe Basins for

the Period of Record

, 1995

– 2006

Year Lake Harney Basin Lake Monroe Basin



### 1995 46.9 50.8

1996 55.0 52.7

1997 44.8 44.4

1998 43.7 41.4

1999 50.7 48.9

2000 25.8 27.7

200 1 51.5 45.3

2002 56.7 56.4

2003 48.4 46.1

2004 62.0 56.7

2005 61.3 59.6

2006 36.9 35.1

Mean 48.6 47.1FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 77 Besides rainfall, the HSPF Model also requires seven other meteorological time series for the

model simulation : evaporation, air temperature, wind speed, solar radiation, potential

evapotranspiration, dew point temperature, and cloud cover. To collect these meteorological

data, weather stations in and around the Lake Harney and Lake Monroe B asins were analyzed

for their types of data collected, length of record, and missing data. Table 4.9 lists the weather

stations used in this analysis . The weather data from these stations were obtained from the

SJRWMD.

Table 4.9

. Major Weather Stations in or near the Econlockhatchee River Watershed

1 The original LISBON pan evaporation data after 2000 ar e problematic because they are significantly lower than their historical

averages. These low readings were corrected by David Clapp of the SJRWMD. T his analysis uses t he corrected data

.

Station Name Location Dat a Type Period of

Record Time

Interval

LISBON 1 Lisbon Pan Evaporation 1/1/1960

–

Present Daily

ORLANDO Orlando

International Airport Wind Speed

Air Temperature

Dew Point Temperature

Cloud Cover 5/7/1952

– 6/30/1996 for

Cloud Cover;

5/7/1952

– 12/31/2002 for

others Hourly

S61W Lake Tohopekeliga Solar Radiation 10/20/1992

–

Present Daily



### This analysis assumed that the potential evaporation from the water surface equals the potential

evapotranspiration in the watershed. The potential evaporation wa s estimated by applying a

pan coefficient to the pan evaporation data from LISBON. An annual pan coefficient of 0.78

wa s used, resulting in an estimated long

- term (1960

– 2005) average potential evaporation rate

of 47.4 in ches per year (in /yr )

. This estimate wa s clo se to the estimated average potential

evaporation rate of 46 to 48 in/yr for the area by Tibbals (1990). For missing records in a given

time series, the long

- term daily averages for the period of record were calculated and

substituted into the missing time series. Whenever daily data ( instead of hourly data ) were

available for a given time series, the daily data were disaggregated using the WDMUtil P rogram.

4.2.2.8 Model Calibration

1. Hydrology Calibration and Validation

Measured flow data were needed for hydrology calibration and validation

. Three USGS gaging

stations were identified in the St. Johns River segments in the HSPF Model domain: 02234500

(St. Johns River near Sanford, FL), 02234440 (St. Johns River at State H ighway 415 near

Sanford, FL), and 02234010 (St. Johns River of Osceola, FL). Another USGS gage, 02234100

(Deep Creek near Osteen, FL), was identified in Deep Creek

, which discharges to the main

stem of the St. Johns River immediately downstream of the Lake Harney outlet

.

Two of the main stem stations, 02234440 and 20034010, had period s of record starting in 2005

that did not cover the period for HSPF Model simulation ( October 1, 199 5, through September

30, 2003). Therefore

, these two stations were not used for the hydrology calibrati on. The

p eriod of record for Gage 02234500 cover ed the entire period for HSPF Model simulation. The

USGS collected flow data at the Deep Creek gage from October 1, 1964

, to September 30,

1998. The SJRWMD took over the gage in 1998 and has collect ed flow measurements sinceFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 78 then

. Figure 4. 7 shows the locations of the gaging stations identified in the HSPF Model

domain. Hydrology calibrations were based on the flow data from Gages 02234500 and

02234100

.

Figure s 4. 8a

, 4. 8b , and 4. 8c show the correlation between the model

- simulated and measured

flow, a comparison of the flow duration curves for simulated and measured flow, and a direct

comparison of simulated and measured flows, respectively, at Gage 02234500. Figures 4. 9a

, 4. 9b , and 4. 9c show the correla tion between the model

- simulated and measured flow, a

comparison of the flow duration curves for simulated and measured flow s , and a direct

comparison of simulated and measured flows, respectively, at Gage 02234100.

Based on Figures 4. 8 and 4. 9 , reasonab le flow calibrations were achieved at both Gages

02234500 and 02234100

. A comparison of the flow duration curves of simulated and measured

flows indicated that the model overestimate s the flow at Gage 02234500 when the flow is low.

This could be caused by reverse flow in the Middle St. Johns River result ing from strong winds.

HSPF does not simulate the reverse flow condition. At the Deep Creek gage (02234100) , the

model again overestimate d flow under the low

- flow condition. According to SJRWMD staff,

d epending on the regional rainfall pattern, flow from the main stem of the Middle St. Johns River

could block the flow from Deep Creek or could even enter the c reek, causing reverse flow in the

creek. However, the overall percentage of blocked or reverse flow was not high. Model

simulat ions matched the measured flow reasonably well at this station.

2. Water Quality Calibration and Validation

When the water quality components of the HSPF M odel were calibrated, the SJRWMD only

used the water quality data collected by the agency itself. The periods of record at some water

quality stations did not cover the entire model simulation period ; therefore, only part of the

model simulat ions was used for model calibration purpose s

.

As discussed in Section 4.2.2.1 , w hen the SJRWMD set up the HSPF Model

, the watershed

delineations used for the modeling were different from the WBID boundaries used by the

Department for water quality assessment purpose s . Because the basin delineation reflect ed the

actual basin areas t hat contribute to the impaired waters, this report used the basin de lineations

created by the SJRWMD for TMDL development purposes.

In addition, several WBIDs were aggregated into the receiving water segments in the

SJRWMD’s HSPF Model , designated as sub

- basins or HSPF RCHRES in the model. For

example, WBIDs 2964 and 2893F were aggregated into RCHRES 11 (St. Johns River above

Lake Jesup)

, and WBIDs 2893E and 2893D were aggregated into RCHRES 15 (Lake Monroe

plus the St. Johns River segment above Lake Mon roe).FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 79 Figure 4. 7. Location of USGS S tations in the HSPF M odel D omain

02234100FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 80 Figure s 4. 8 a, b, c

. Flow Calibration Results for USGS Gage 02234500

(St. Johns River near Sanford, FL)



### A

y = 0.8603x + 268.83

R

2 = 0.946

0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000

0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000

ObservedHSPF Simulated



### B

0.1

1 10 100 1000 10000

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

Percent of Time Flow is ExceededDaily Flow (cfs) Observed

Simulated



### C

0 2000 4000 6000 8000 10000 12000

1995 1996 1997 1998 1999 2000 2001 2002 2003

YearFlow (cfs) Observed

SimulatedFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 81 Figure s 4. 9 a, b, c

. Flow Calibration Results for USGS Ga ge 02234100

(D eep Creek Near Osteen, FL)



### A

y = 0.8515x + 5.1344

R

2 = 0.756

0 200 400 600 800 1000 1200 1400

0 200 400 600 800 1000 1200 1400

ObservedHSPF Simulated



### B

0.1

1 10 100 1000 10000

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

Percent of Time Flow is ExceededDaily Flow (cfs) Observed

SimulatedFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 82 For model calibration purposes, the water quality stations located in these aggregated RCHRES

were also aggregated into the same water quality data pool, and the stations with the longest

periods of record were used for the wat er quality calibration for each aggregation. Table 4.10

shows the HSPF Model RCHRES, WBID numbers, the water quality stations used for the water

quality calibration, and the periods of record for these stations. Figure 4. 10 shows the locations

of the water quality stations used for the model calibration. Figures 4. 11 through 4. 14 show the

calibration results for TN and TP concentrations for the impaired St. Johns River segments

included in this TMDL report. As shown in Figures 4.1 1 through 4.1 4 , except for some extreme

observed values, the HSPF Model generally predicts the range and trend of TN and TP

concentrations in the impaired Middle St. Johns River segments reasonably well.

Table 4.10. Water Quality Stations and Their Period s of Record

Used for Water Quality Calibrations

1 RCHRES is the segment of receiving water defined in the HSPF M odel. RCHRES receives pollutant loadings from point and

nonpoint sources in the watershed and perform s computations on physical, chemical, and biological processes i n the receiving

waterbody.

2 More recent data than 9/30/2003 were available at some stations. However, as the HSPF M odel simulation period ended on

9/30/2003, data points more recent than 9/30/2003 were not used in water quality calibration.

HSPF

Model

RC HRES 1 WBID Waterbodies Water Quality

Station Period of Record 2

8 2964A Lake Harney CLH 10/24/2001 to

9/30/2003

11 2964 + 2893F St. Johns River above Lake Harney ; St. Johns River above Lake Jesup OW -SJR-1 3/13/1996 to

9/30/2003

15 2893E + 2893D St. Johns River above Lake Monroe ;

Lake Monroe LMAC 10/1/1995 to

9/30/2003

20 2893C St. Johns River above Wekiva River SJR- DPP 10/17/2002 to

9/30/2003FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 83 Figure 4. 10

. Locations of Water Quality Stations Used for the Water Quality

CalibrationFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 84 Figure s 4.1 1 a, b

. TN ( a ) and TP ( b ) Calibration Results for Lake Harn ey (WBID

2964A)

A

0 0.5

1 1.5

2 2.510/24/200111/24/200112/24/20011/24/20022/24/20023/24/20024/24/20025/24/20026/24/20027/24/20028/24/20029/24/200210/24/200211/24/200212/24/20021/24/20032/24/20033/24/20034/24/20035/24/20036/24/20037/24/20038/24/20039/24/2003

DateTN Concentration (mg/L) Simulated

Observed

B

0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.1810/24/200111/24/200112/24/20011/24/20022/24/20023/24/20024/24/20025/24/20026/24/20027/24/20028/24/20029/24/200210/24/200211/24/200212/24/20021/24/20032/24/20033/24/20034/24/20035/24/20036/24/20037/24/20038/24/20039/24/2003

DateTP Concentration (mg/L) Simulated

ObservedFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 85 Figure s 4.1 2 a, b

. TN ( a ) and TP ( b ) Calibration Results for St. Johns River above

Lake Jesup (WBIDs 2964 and 2893F)

A

0 0.5

1 1.5

2 2.5

3 3.5

43/13/19967/13/199611/13/19963/13/19977/13/199711/13/19973/13/19987/13/199811/13/19983/13/19997/13/199911/13/19993/13/20007/13/200011/13/20003/13/20017/13/200111/13/20013/13/20027/13/200211/13/20023/13/20037/13/2003

DateTN Concentration (mg/L) Simulated

Observed

B

0 0.1 0.2 0.3 0.4 0.5 0.63/13/19967/13/199611/13/19963/13/19977/13/199711/13/19973/13/19987/13/199811/13/19983/13/19997/13/199911/13/19993/13/20007/13/200011/13/20003/13/20017/13/200111/13/20013/13/20027/13/200211/13/20023/13/20037/13/2003

DateTP Concentration (mg/L) Simulated

ObservedFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 86 Figure s 4.1 3 a, b

. TN ( a ) and TP ( b ) Calibration Results for St. Johns River above

Lake Monroe and Lake Monroe (WBIDs 2893E and 2893D)

A

0.0 1.0 2.0 3.0 4.0 5.010/1/19952/1/19966/1/199610/1/19962/1/19976/1/199710/1/19972/1/19986/1/199810/1/19982/1/19996/1/199910/1/19992/1/20006/1/200010/1/20002/1/20016/1/200110/1/20012/1/20026/1/200210/1/20022/1/20036/1/2003

DateTN Concentration (mg/L) Simulated

Observed



### B

0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.710/1/19952/1/19966/1/199610/1/19962/1/19976/1/199710/1/19972/1/19986/1/199810/1/19982/1/19996/1/199910/1/19992/1/20006/1/200010/1/20002/1/20016/1/200110/1/20012/1/20026/1/200210/1/20022/1/20036/1/2003

DateTP Concentration (mg/L) Simulated

ObservedFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 87 Figure s 4.1 4 a, b

. TN ( a ) and TP ( b ) Calibration Results for St. Johns River above

Wekiva River (WBID 2893C)

A

0 0.2 0.4 0.6 0.8

1 1.2 1.4 1.6 1.8

210/17/200210/31/200211/14/200211/28/200212/12/200212/26/20021/9/20031/23/20032/6/20032/20/20033/6/20033/20/20034/3/20034/17/20035/1/20035/15/20035/29/20036/12/20036/26/20037/10/20037/24/20038/7/20038/21/20039/4/20039/18/2003

DateTN Concentration (mg/L)

Simulated

Observed

B

0 0.02 0.04 0.06 0.08

0.1 0.12 0.1410/17/200210/31/200211/14/200211/28/200212/12/200212/26/20021/9/20031/23/20032/6/20032/20/20033/6/20033/20/20034/3/20034/17/20035/1/20035/15/20035/29/20036/12/20036/26/20037/10/20037/24/20038/7/20038/21/20039/4/20039/18/2003

DateTP Concentration (mg/L)

Simulated

ObservedFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 88 4.2.2.9 Summary of Pollutant Loadings from Point and Nonpoint Sources Con tributing

to the Impaired Middle St. Johns River Segments

Tables 4.11 to 4.13 tabulate, for each year from 1996 through 2003, the annual flow balance,

TN, and TP mass balance for each impaired river segment from the upstream river segments,

from the water shed (including surface runoff, interflow, baseflow, and septic tank contributions

minus the attenuation effects of BMPs), from rainfall directly onto the surface of the receiving

waters, and, for WBID 2893C (St. Johns River above Wekiva River), contributi ons from the

Sanford North WWTP, respectively. These tables also show the flow loss through evaporation,

and the TN and TP loadings lost in each segment due to processes such as deposition,

denitrification, and sedimentation. Tables 4.14 to 4.16 summariz e the long

- term annual

average flow, TN, and TP loadings entering each impaired river segment from different sources

and the long

- term annual average flow, TN, and TP loadings leaving each impaired segment.

Tables 4.14 to 4.16 also list the percent distri butions of flow, TN, and TP loadings from each

source in the total flow, TN, and TP loadings received by each impaired segment.

It should be noted that, although the period of record for NEXRAD rainfall data was 1995 to

2006, the SJRWMD’s HSPF Model was set up only to simulate watershed loadings up to 2003.

To simulate watershed loadings in more recent years, more boundary condition flow and

hydrology data, point source data, spring discharge data, etc., needed to be assembled to

populate the HSPF Model. Due to time constraints, the Department was not able to extend

these time series. The existing nutrient loadings were therefore quantified based on model

simulations from 1996 through 2003. Using the loadings from this period to represent the

existing co ndition appears reasonable because, based on the long

- term trend analyses shown

in Chapter 2, except for the three consecutive dry years from 1999 through 2001, water quality

in the impaired river segments has been relatively stable for the period from 1996 through 2007.

The existing flow and loading summaries indicated that the flow and nutrient loadings into all the

impaired river segments included in this TMDL report were dominated by upstream input.

Contributions of flow and TN and TP loadings from upstream river segments accounted for

more than 95 percent of the total flow and TN and TP loadings for Lake Harney (RCHRES 8,

WBID 2964A) and St. Johns River above Wekiva River (RCHRES 20, WBID 2893C). The

relative contributions of flow and TN and TP loadings from the upstream segment into St. Johns

River above Lake Monroe and Lake Monroe are about 90, 88, and 87 percent, respectively.

Lake Jesup contributed about 6 percent of the flow, 8 percent of the TN, and 8 percent of the TP

loadings, respectively, to Lake Monroe and St. Johns River above Lake Monroe. Except for St.

Johns River Downstream of Lake Harney and St. Johns River above Lake Jesup, flow and TN

and TP loadings entering these river segments from their immediate watersheds were all less

than 5 percent of the total flow and loadings received by the segments. Direct rainfall onto the

water surface contributes less than 5 percent of the total flow and no more than 1 percent of the

total loadings of TN and TP entering these segments. The relative contributions of flow and TN

and TP loadings from the Sanford North WWTF to St. Johns River above Wekiva River

(RCHRES 20, WBID 2893C) were less than 1 percent of the total flow and nutrient loadings

entering this segment.

For St. Johns River Downstream of Lake Harney and St. Johns River above Lake Jesup

(RCHRES 11, WBIDs 2964 and 2893F), the upstream contribution of flow, TN, and TP

accounted for more than 90 percent of the total flow, 92 percent of the TN loadings, and 89

percent of the TP loadings entering these segments. Contributions from the immediate

watershed accounted for about 9 percent of the total flow, 7 percent of the TN loading, and 11FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 89 percent of the TP loading entering the segments. Direct rainfall contributed about 0.8 percent of

the to tal flow, 0.3 percent of the total TN loading, and 0.2 percent of the total TP loading. The

percent contributions of flow and nutrients from the watershed immediately adjacent to these

river segments were higher than those of the other segments because the Deep Creek

watershed, which covers a large area ( Figure 4.2 ), drains into this portion of the river.

Table 4.17 summarizes the relative contributions of flow and TN and TP loadings from different

sources into the impaired segments from the inlet of Lake Harney to the confluence of the St.

Johns River and the Wekiva River. Based on the table, the flow, TN, and TP loadings from the

Upper St. Johns River and Econlockhatchee River contribute about 77 percent of the flow, 79

percent of the TN loadings, and 74 percent of the TP loadings that enter the impaired segments.

Lake Jesup contributes about 5 percent of the flow, 8 percent of the TN loadings, and 8 percent

of the TP loadings. The contributions from the Lake Harney and Lake Monroe Basins are 12

percent of flow, 11 percent of TN loadings, and 16 percent of TP loadings. Direct rainfall onto

the surface of these impaired segments contributes about 5 percent of the flow, 2 percent of the

TN loadings, and 1 percent of the TP loadings. The Sanford/North WWTP discharges to the

northern end of the impaired segments. The facility contributes about 0.1 percent of the flow,

0.5 percent of the TN loadings, and 0.7 percent of the TP loadings.

In summary, the upstream contribution dominates the flow and nutrient loadings entering the

impaired river segments included in this TMDL report. While efforts need to be made to reduce

the nutrient loading from the immediate watersheds, reducing the loading from upstream

segments should be emphasized. This includes reducing the nutrient loading entering the

Middle St. Johns segments from the Upper St. Johns River, the Econlockhatchee River, and

Lake Jesup.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 90 Table 4.11

. Water Balance (ac

- ft/yr) for the Impaired Middle St. Johns River Segments

1 Main Stem Upstream Input includes only flow from the immediate upstream main stem segment. Tributary inflow is not included.

2 Watershed Input includes flow (runoff, interflow, and baseflow) from the sub

- basins directly discharging to the river segment under question.

3 Minus sig n indicate s amount of water leaving the segment or reduced segment volume.

* Boundary flow from Upper St. Johns River and Econlockhatchee River ( yellow highlighting).

** Boundary flow from Lake Jesup outlet ( green highlighting).

RCHRES

( WBID ) Year Main Stem

Upstream

Input 1 Lake Jesup

Input Watershed

Input 2 Direct

Rainfall Point Source

Contribution Loss

through

Evaporation 3 Segment

Volume

Change 3 Total

Outflow from

Segment 3

RCHRES 8

(2964A) 1996 1,877,380 * No t Applicable 30,738 36,493 Not Applicable

- 33

, 195

- 44

, 551

- 1,955,967

RCHRES 8

(2964A) 1997 926,998 * No t Applicable 12,772 24,187 Not Applicable

- 25

, 166 9, 460

- 929,331

RCHRES 8

(2964A) 1998 2,212,725 * No t Applicable 26,817 38,604 Not Applicable

- 32

, 141 5, 966

- 2,240,039

RCHRES 8

(2964A) 1999 621,202 * No t Applicable 14,036 22,034 Not Applicable

- 20

, 681 593

- 635,998

RCHRES 8

(2964A) 2000 1,149,251 * No t Applicable 19,353 22,455 Not Applicable

- 23

, 592

- 22

, 711

- 1,190,178

RCHRES 8

(2964A) 2001 836,530 * No t Applicable 12,586 26,192 Not Applicable

- 23

, 791 55 ,0 44

- 796,473

RCHRES 8

(2964A) 2002 1,934,819 * No t Applicable 23,768 38,161 Not Applicable

- 34

, 635

- 18

, 668

- 1,980,781

RCHRES 8

(2964A) 2003 1,570,644 * No t Applicable 34,086 33,453 Not Applicable

- 26

, 545 -1, 963

- 1,613,601

RCHRES 8

(2964A) Mean 1,391,193 * Not Applicable 21,770 30,197 Not Applicable

- 27,468

- 2,104

- 1,417,796

RCHRES 11

(2964, 2893F) 1996 1,955,967 No t Applicable 157,287 10,469 Not Applicable

- 14

, 820

- 23

, 017 -2, 131

, 920

RCHRES 11

(2964, 2893F) 1997 929,331 No t Applicable 91,366 16,224 Not Appl icable

- 10

, 960 9, 306

- 1,016,655

RCHRES 11

(2964, 2893F) 1998 2,240,039 No t Applicable 161,875 16,608 Not Applicable

- 13

, 608 4, 216 -2, 400

, 697

RCHRES 11

(2964, 2893F) 1999 635,998 No t Applicable 99,730 10,032 Not Applicable -9, 258

- 29

- 736

, 531

RCHRES 11

( 2964, 2893F) 2000 1,190,178 No t Applicable 91,331 9,477 Not Applicable -9, 181

- 12

, 407 -1, 294

, 212

RCHRES 11

(2964, 2893F) 2001 796,473 No t Applicable 123,761 11,394 Not Applicable

- 10

, 243 23

, 013

- 898

, 372

RCHRES 11

(2964, 2893F) 2002 1,980,781 No t Applicab le 147,461 14,846 Not Applicable

- 13

, 287 -5, 786 -2, 135

, 587

RCHRES 11

(2964, 2893F) 2003 1,613,601 No t Applicable 194,038 15,742 Not Applicable

- 11

, 847 -1, 922 -1, 813

, 456FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 91 RCHRES

( WBID ) Year Main Stem

Upstream

Input 1 Lake Jesup

Input Watershed

Input 2 Direct

Rainfall Point Source

Contribution Loss

through

Evaporation 3 Segment

Volume

Change 3 Total

Outflow from

Segment 3

RCHRES 11

(2964, 2893F) Mean 1,417,796 No t Applicable 133,356 13,099 Not Applicable

- 11,651

- 828

- 1,553,429

RCHRES 15

(2893E, 2893D) 1996 213

, 1920 188

, 065 ** 54,026 52,645 Not Applicable

- 48

, 893

- 33033

- 2,410,796

RCHRES 15

(2893E, 2893D) 1997 1, 016

, 655 59

, 837 ** 31,061 35,336 Not Applicable

- 39

, 073 5002

- 1,098,814

RCHRES 15

(2893E, 2893D) 1998 2, 400

, 697 159

, 243 ** 54,549 53,330 Not Applicable

- 45

, 921 1987

- 2,619,911

RCHRES 15

(2893E, 2893D) 1999 736

, 531 16

, 131 ** 36,354 36,537 Not Applicable

- 34

, 918 1004

- 789,631

RCHRES 15

(2893E, 2893D) 2000 1, 294

, 212 70

, 559 ** 32,344 31,494 Not Applicable

- 37

, 402

- 17611

- 1,408,818

RCHRES 15

(2893E, 2893D) 2001 898

, 372

- 36

, 087 ** 31,881 37,600 Not Applicable

- 37

, 849 47434

- 846,483

RCHRES 15

(2893E, 2893D) 2002 2, 135

, 587 139

, 604 ** 46,072 48,809 Not Applicable

- 47

, 692

- 11944

- 2,334,324

RCHRES 15

(2893E, 289 3D) 2003 1, 813

, 456 173

, 097 ** 57,769 49,253 Not Applicable

- 39

, 752

- 7989

- 2,061,812

RCHRES 15

(2893E, 2893D) Mean 1,553,429 96,306 ** 43,162 42,837 Not Applicable

- 40,589 2,147

- 1,696,323

RCHRES 20

(2893C) 1996 2,410,796 Not Applicable 22,499 6,420 2,641

- 6,571 307

- 2,435,478

RCHRES 20

(2893C) 1997 1,098,814 Not Applicable 11,893 4,739 596

- 4,933

- 4,782

- 1,115,891

RCHRES 20

(2893C) 1998 2,619,911 Not Applicable 27,878 7,176 769

- 6,115 677

- 2,648,942

RCHRES 20

(2893C) 1999 789,631 Not Applicable 14,222 4,125 336

- 4,225 194

- 803,895

RCHRES 20

(2893C) 2000 1,408,818 Not Applicable 14,489 3,854 242

- 4,475 226

- 1,422,702

RCHRES 20

(2893C) 2001 846,483 Not Applicable 14,791 4,643 1,566

- 4,645

- 2,259

- 865,097

RCHRES 20

(2893C) 2002 2,334,324 Not Applicable 17,978 6,083 2,278

- 6,256 6,493

- 2,347,914

RCHRES 20

(2893C) 2003 2,061,812 Not Applicable 28,296 6,730 3,136

- 5,313

- 1,588

- 2,096,249

RCHRES 20

(2893C) Mean 1,696,323 Not Applicable 19,609 5,435 1,445

- 5,317

- 92

- 1,717,021FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 92 Table 4.12

. TN Mass Balance (l bs/yr) for Impaired Middle St. Johns River Segments

1 Main Stem Upstream Input includes only TN loading from the immediate upstream main stem segment. Loading through t ributary inflow is not included.

2 Watershed Input includes loading from the sub

- basins directly discharging to the river segment under question.

3 Minus sign indicate s amount of TN leaving the segment or reduced segment storage.

* Boundary TN loading from Upper St. Johns River and Econlockhatchee River ( yellow highlighting).

** Boundary TN loading from Lake Jesup outlet ( green highlighting).

RCHRES (WBID) Year Main Stem

Upstream

Input 1 Lake Jesup

Input Watershed

Input 2 Direct

Rainfall Point Source

Contribution Lost in

Segment 3 Segment

Storage

Change 3 Total Output

from

Segment 3

RCHRES 8

(2964A) 1996 6,552,424 * No t Applicable 80,198 53,861 Not Applicable

- 37,457

- 161

, 415

- 6,810,441

RCHRES 8

(2964A) 1997 3,701,699 * No t Applicable 37,254 37,371 Not Applicable

- 36,068 71

, 079

- 3,669,177

RCHRES 8

(2964A) 1998 8,778,734 * No t Applicable 61,138 56,742 Not Applicable

- 25,200 49

, 955

- 8,821,459

RCHRES 8

(2964A) 1999 2,960,563 * No t Applicable 38,717 34,053 Not Applicable

- 29,413 -1, 846

- 3,005,765

RCHRES 8

(2964A) 2000 4,534,291 * No t Applicable 51,835 35,703 Not Applicable

- 30,304

- 73

, 680

- 4,665,205

RCHRES 8

(2964A) 2001 3,686,353 * No t Applicable 35,247 39,330 Not Applicable

- 38,959 199

, 959

- 3,522,012

RCHRES 8

(2964A) 2002 8,321,436 * No t Applicable 68,930 55,789 Not Applicable

- 87,693

- 145

, 128

- 8,503,590

RCHRES 8

(2964A) 2003 4,818,730 * No t Applicable 98,023 49,623 Not Applicable

- 46,773 19

, 082

- 4,900,521

RCHRES 8

(2964A) Mean 5,419,279 * No t Applicable 58,918 45,309 Not Applicable

- 41,483

- 5,249

- 5,487,271

RCHRES 11

(2964, 2893F) 1996 6,810,441 No t Applicable 528,977 23,812 Not Applicable

- 46

, 434

- 65

, 849

- 7,382,645

RCHRES 11

(2964, 2893F) 1997 3,669,177 No t Applicable 281,863 17,123 Not Applicable

- 34

, 407 34

, 432

- 3,899,324

RCHRES 11

(2964, 2893F) 1998 8,821,459 No t Applicable 523,156 24,167 Not Applicable

- 36

, 944 22

, 880

- 9,308,958

RCHRES 11

(29 64, 2893F) 1999 3,005,765 No t Applicable 304,560 15,522 Not Applicable

- 35

, 886 -5, 113

- 3,295,074

RCHRES 11

(2964, 2893F) 2000 4,665,205 No t Applicable 299,876 14,813 Not Applicable

- 27

, 518

- 36

, 812

- 4,989,188

RCHRES 11

(2964, 2893F) 2001 3,522,012 No t Applicable 375,115 17,056 Not Applicable

- 37

, 714 78

, 618

- 3,797,851

RCHRES 11

(2964, 2893F) 2002 8,503,590 No t Applicable 533,009 21,728 Not Applicable

- 59

, 671

- 46

, 556

- 9,045,212

RCHRES 11

(2964, 2893F) 2003 4,900,521 No t Applicable 693,345 23,084 Not Applic able

- 61

, 395 1, 999

- 5,553,556FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 93 RCHRES (WBID) Year Main Stem

Upstream

Input 1 Lake Jesup

Input Watershed

Input 2 Direct

Rainfall Point Source

Contribution Lost in

Segment 3 Segment

Storage

Change 3 Total Output

from

Segment 3

RCHRES 11

(2964, 2893F) Mean 5,487,271 No t Applicable 442,488 19,663 Not Applicable

- 42,496

- 2,050

- 5,908,976

RCHRES 15

(2893E, 2893D) 1996 7, 382

, 645 1, 054

, 522 ** 196,344 77,316 Not Applicable

- 75

, 507

- 130

, 521

- 8,765,841

RCH RES 15

(2893E, 2893D) 1997 3, 899

, 324 375

, 211 ** 111,450 55,675 Not Applicable

- 60

, 138 83

, 723

- 4,297,799

RCHRES 15

(2893E, 2893D) 1998 9, 308

, 958 976

, 644 ** 188,410 78,331 Not Applicable

- 59

, 787 40

, 798

- 10,451,758

RCHRES 15

(2893E, 2893D) 1999 3, 295

, 074 46 ,0 06 ** 126,306 56,672 Not Applicable

- 65

, 496

- 41

, 689

- 3,500,251

RCHRES 15

(2893E, 2893D) 2000 4, 989

, 188 541

, 233 ** 110,660 51,105 Not Applicable

- 52

, 932 55

, 997

- 5,583,256

RCHRES 15

(2893E, 2893D) 2001 3, 797

, 851

- 274

, 352 ** 123,940 57,946 Not Applicable

- 69 ,6 81

- 11

, 968

- 3,647,672

RCHRES 15

(2893E, 2893D) 2002 9, 045

, 212 762

, 653 ** 185,274 72,560 Not Applicable

- 93

, 156

- 27

, 427

- 9,999,970

RCHRES 15

(2893E, 2893D) 2003 5, 553

, 556 929

, 145 ** 220,893 72,937 Not Applicable

- 77

, 415

- 19

, 064

- 6,718,179

RCHRES 15

(2893E, 2893D) Mean 5,908,976 551,383 ** 157,910 65,318 Not Applicable

- 69,264

- 6,269

- 6,620,591

RCHRES 20

(2893C) 1996 8,765,841 Not Applicable 65,608 9,668 49,889

- 14

, 014

- 18

, 327

- 8,845,430

RCHRES 20

(2893C) 1997 4,297,799 Not Applicable 40,062 7,376 18,026 -11, 843 10

, 587

- 4,322,807

RCHRES 20

(2893C) 1998 10,451,758 Not Applicable 82,056 10,541 18,004

- 13

, 080 4, 778

- 10,526,497

RCHRES 20

(2893C) 1999 3,500,251 Not Applicable 45,973 6,552 7,269

- 12

, 250 -4, 682

- 3,545,208

RCHRES 20

(2893C) 2000 5,583,256 Not App licable 45,895 6,303 8,020

- 11

, 382 7, 004

- 5,617,068

RCHRES 20

(2893C) 2001 3,647,672 Not Applicable 47,641 7,156 33,914

- 12

, 487 -2, 250

- 3,692,232

RCHRES 20

(2893C) 2002 9,999,970 Not Applicable 59,865 9,160 54,096

- 16

, 865 -1, 362

- 10,053,492

RCHRES 20

(2 893C) 2003 6,718,179 Not Applicable 89,629 9,977 60,358

- 17

, 360 -3, 185

- 6,803,609

RCHRES 20

(2893C) Mean 6,620,591 Not Applicable 59,591 8,342 31,197

- 13,660

- 930

- 6,675,793FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 94 Table 4.13

. TP Mass Balance (lbs/yr) for Impaired Middle St. Johns River Segm ents

1 Main Stem Upstream Input includes only TP loading from the immediate upstream main stem segment. Loading through t ributary inflow is not included.

2 Watershed Input includes loading from the sub

- basins directly discharging to the river segment under question.

3 Minus sign indicates amount of TP leaving the segment or reduced segment storage.

* Boundary TP loading from Upper St. Johns River and Econlockhatchee River ( yellow highlighting).

** Boundary TP loading from Lake Jesup outlet ( green highlighting).

RCHRES (WBID) Year Main Stem

Upstream

Input 1 Lake Jesup

Input Watershed

Input 2 Direct

Rainfall Point Source

Contribution Lost in

Segment 3 Segment

Storage

Change 3 Total Output

from

Segment 3

RCHRES 8

(2964A) 1996 448,223 * No t Applicable 4,093 2,441 Not Applicable -1, 525

- 19

, 549

- 472,781

RCHRES 8

(2964A) 1997 223,223 * No t Applicable 2,421 1,849 Not Applicable -1, 932 2, 599

- 222,962

RCHRES 8

(2964A) 1998 408,176 * No t Applicable 3,687 2,557 Not Applicable -1, 095 6, 584

- 406,741

RCHRES 8

(2964A) 1999 1 82,412 * No t Applicable 2,499 1,692 Not Applicable -2, 506 992

- 183,105

RCHRES 8

(2964A) 2000 265,098 * No t Applicable 2,561 1,864 Not Applicable -2, 001 -9, 745

- 277,267

RCHRES 8

(2964A) 2001 351,070 * No t Applicable 2,076 1,849 Not Applicable -2, 401 30

, 992

- 321,603

RCHRES 8

(2964A) 2002 589,199 * No t Applicable 3,694 2,489 Not Applicable -1, 653

- 16

, 405

- 610,135

RCHRES 8

(2964A) 2003 351,923 * No t Applicable 5,111 2,274 Not Applicable -1, 678 -5, 235

- 362,865

RCHRES 8

(2964A) Mean 352,415 * No t Applicable 3,268 2,127 Not Applicable

- 1,849

- 1,221

- 357,182

RCHRES 11

(2964, 2893F) 1996 472,781 No t Applicable 53,101 1,067 Not Applicable -3, 783 -8, 074

- 531,240

RCHRES 11

(2964, 2893F) 1997 222,962 No t Applicable 28,683 829 Not Applicable -2, 808 1, 230

- 248,436

RCHRES 11

(2964, 2893F) 1998 406,741 No t Applicable 51,242 1,068 Not Applicable -2, 958 3, 134

- 452,959

RCHRES 11

(2964, 2893F) 1999 183,105 No t Applicable 32,105 769 Not Applicable -3, 501 223

- 212,255

RCHRES 11

(2964, 2893F) 2000 277,267 No t Applicable 26,509 7 50 Not Applicable -2, 402 -4, 589

- 306,714

RCHRES 11

(2964, 2893F) 2001 321,603 No t Applicable 43,330 798 Not Applicable -3, 543 12

, 951

- 349,236

RCHRES 11

(2964, 2893F) 2002 610,135 No t Applicable 54,955 972 Not Applicable -3, 192 -6, 551

- 669,421

RCHRES 11

(2964, 2893F) 2003 362,865 No t Applicable 71,098 1,030 Not Applicable -5, 389 -2, 680

- 432,285

RCHRES 11

(2964, 2893F) Mean 357,182 No t Applicable 45,128 910 Not Applicable

- 3,447

- 544

- 400,318FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 95 RCHRES (WBID) Year Main Stem

Upstream

Input 1 Lake Jesup

Input Watershed

Input 2 Direct

Rainfall Point Source

Contribution Lost in

Segment 3 Segment

Storage

Change 3 Total Output

from

Segment 3

RCHRES 15

(2893E, 2893D) 1996 531

, 240 64

, 829 ** 24,660 3,479 No t Applicable -9, 280

- 15

, 869

- 630,797

RCHRES 15

(2893E, 2893D) 1997 248

, 436 22

, 680 ** 14,552 2,858 Not Applicable -7, 805 1, 471

- 279,250

RCHRES 15

(2893E, 2893D) 1998 452

, 959 56

, 134 ** 22,324 3,522 Not Applicable -7, 831 2, 403

- 524,705

RCHRES 15

(2893E, 2893 D) 1999 212

, 255 8, 250 ** 16,179 2,832 Not Applicable -8, 660 2, 020

- 228,835

RCHRES 15

(2893E, 2893D) 2000 306

, 714 18

, 946 ** 12,530 2,755 Not Applicable -6, 865 -5, 945

- 340,026

RCHRES 15

(2893E, 2893D) 2001 349

, 236

- 10

, 066 ** 15,684 2,864 Not Applicable -8, 890 31

, 352

- 317,477

RCHRES 15

(2893E, 2893D) 2002 669

, 421 55

, 608 ** 22,245 3,349 Not Applicable -8, 870

- 18

, 104

- 759,856

RCHRES 15

(2893E, 2893D) 2003 432

, 285 81

, 847 ** 25,653 3,341 Not Applicable

- 10

, 701 -8, 746

- 541,172

RCHRES 15

(2893E, 2893D) Mean 400,318 37,279 ** 19,228 3,125 Not Applicable

- 8,613

- 1,427

- 452,765

RCHRES 20

(2893C) 1996 630,797 Not Applicable 7,008 456 4,847 -1, 434 -2, 161

- 638,988

RCHRES 20

(2893C) 1997 279,250 Not Applicable 4,639 368 2,099 -1, 220 209

- 282,828

RCHRES 20

(2893C) 1998 524,705 Not Applicable 8,130 474 1,606 -1, 303 210

- 531,796

RCHRES 20

(2893C) 1999 228,835 Not Applicable 5,211 339 729 -1, 326 324

- 232,735

RCHRES 20

(2893C) 2000 340,026 Not Applicable 4,700 343 560 -1, 079

- 749

- 344,739

RCHRES 20

(2893C) 2001 317,477 Not A pplicable 5,464 352 4,056 -1, 347 4, 172

- 317,774

RCHRES 20

(2893C) 2002 759,856 Not Applicable 6,607 434 6,009 -1, 348 -2, 391

- 767,940

RCHRES 20

(2893C) 2003 541,172 Not Applicable 8,937 454 7,683 -1, 713 -1, 160

- 550,010

RCHRES 20

(2893C) Mean 452,765 Not Applicable 6,337 403 3,449

- 1,346

- 193

- 458,351FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 96 Table 4.14

. Summary of Water Balance (ac

- ft/yr) for Impaired Middle St. Johns River Segments

1 Main Stem Upstream Input includes only flow from the immediate upstream main stem segment. Tributary inflow i s not included.

2 Watershed Input includes flow (runoff, interflow, and baseflow) from the sub

- basins directly discharging to the river segment under question.

3 Minus sign indicates amount of water leaving the segment or reduced segment volume.

4 Percent flow represents percentage of flow from each source in the total flow that enters the segment under question.

* Boundary flow from Upper St. Johns River and Econlockhatchee River ( yellow highlighting).

** Boundary flow from Lake Jesup outlet ( green highlighting).

RCHRES

(WBID) Type Main Stem

Upstream

Input 1 Lake Jesup

Input Watershed

Input 2 Direct

Rainfall Point Source

Contribution Loss through

Evaporation 3 Segment

Volume

Change 3 Total Outflow

from Segment 3

RCHRES 8

(2964A) Flow 1,391,193 * No t Applicabl e 21,770 30,197 Not Applicable

- 27,468

- 2,104

- 1,417,796

RCHRES 8

(2964A) % Flow 4 96.4% * No t Applicable 1.5% 2.1% Not Applicable

- 1.9%

- 0.1%

- 98.2%

RCHRES 11

(2964, 2893F) Flow 1,417,796 No t Applicable 133,356 13,099 Not Applicable

- 11,651

- 828

- 1,553,42 9

RCHRES 11

(2964, 2893F) % Flow 4 90.6% No t Applicable 8.5% 0.8% Not Applicable

- 0.7%

- 0.1%

- 99.3%

RCHRES 15

(2893E, 2893D) Flow 1,553,429 96,306 ** 43,162 42,837 Not Applicable

- 40,589 2,147

- 1,696,323

RCHRES 15

(2893E, 2893D) % Flow 4 89.5% 5.5% ** 2.5% 2.5% Not Applicable

- 2.3% 0.1%

- 97.7%

RCHRES 20

(2893C) Flow 1,696,323 Not Applicable 19,609 5,435 1,445

- 5,317

- 92

- 1,717,021

RCHRES 20

(2893C) % Flow 4 98.5% Not Applicable 1.1% 0.3% 0.1%

- 0.3% 0.0%

- 99.7%FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 97 Table 4.15

. Summary of TN Mass Balance (lbs/yr) for Impaired Middle St. Johns River Segments

1 Main Stem Upstream Input includes only TN loading from the immediate upstream main stem segment. Loading through t ributary inflow is not included.

2 Watershed Input includes loading from the sub

- basins directly discharging to the river segment under question.

3 Minus sign indicates amount of TN leaving the segment or reduced segment storage.

4 Percent load represents percentage of the load from each source in the total load that enters the segment under q uestion.

* Boundary TN loading from Upper St. Johns River and Econlockhatchee River ( yellow highlighting).

** Boundary TN loading from Lake Jesup outlet ( green highlighting).

RCHRES (WBID) Type Main Stem

Upstream

Input 1 Lake Jesup

Input Watershed

Input 2 Direct

Rainfall Point Source

Contribution Loss in

Segment 3 Segment

Storage

Change 3 Total Output

from

Segment 3

RCHRES 8

(2964A) Load 5,419,279 * No t Applicable 58,918 45,309 Not Applicable

- 41,483

- 5,249

- 5,487,271

RCHRES 8

(2964A) % Load 4 98.1% * No t Applicable 1.1% 0.8% Not Applicable

- 0.8%

- 0.1%

- 99.3%

RCHRES 11

(2964, 2893F) Load 5,487,271 No t Applicable 442,488 19,663 Not Applicable

- 42,496

- 2,050

- 5,908,976

RCHRES 11

(2964, 2893F) % Load 4 92.2% No t Applicable 7.4% 0.3% Not Applicable

- 0.7% 0.0%

- 99.3%

RCHRES 15

(2893E, 2893D) Load 5,908,976 551,383 ** 157,910 65,318 Not Applicable

- 69,264

- 6,269

- 6,620,591

RCHRES 15

(2893E, 2893D) % Load 4 88.4% 8.2% ** 2.4% 1.0% Not Applicable

- 1.0%

- 0.1%

- 99.1%

RCHRES 20

(2893C) Load 6,620,591 Not Applicable 59,591 8,342 31,197

- 13,660

- 930

- 6,675,793

RCHRES 20

(2893C) % Load 4 99.0% Not Applicable 0.9% 0.1% 0.5%

- 0.2% 0.0%

- 99.8%FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 98 Table 4.16

. Summary of TP Mass Balance (lbs/yr) for Impaired Middle St. Johns River Segments

1 Main Stem Upstream Input includes onl y TP loading from the immediate upstream main stem segment. Loading through t ributary inflow is not included.

2 Watershed Input includes loading from the sub

- basins directly discharging to the river segment under question.

3 Minus sign indicates amount of TP leaving the segment or reduced segment storage.

4 Percent load represents percentage of the load from each source in the total load that enters the segment under question.

* Boundary TP loading from the Upper St. Johns River and Econlockhatchee River ( yellow highlighting).

** Boundary TP loading from the Lake Jesup outlet ( green highlighting).

RCHRES (WBID) Type Main Stem

Upstream

Input 1 Lake Jesup

Input Watershed

Input 2 Direct

Rainfall Point Source

Contribution Loss

through

Evaporation 3 Segment

Vol ume Change 3 Total

Outflow from

Segment 3

RCHRES 8

(2964A) Load 352,415 * No t Applicable 3,268 2,127 Not Applicable

- 1,849

- 1,221

- 357,182

RCHRES 8

(2964A) % Load 4 98.5% * No t Applicable 0.9% 0.6% Not Applicable

- 0.5%

- 0.3%

- 99.8%

RCHRES 11

(2964, 2893F) Load 357,182 No t Applicable 45,128 910 Not Applicable

- 3,447

- 544

- 400,318

RCHRES 11

(2964, 2893F) % Load 4 88.6% No t Applicable 11.2% 0.2% Not Applicable

- 0.9%

- 0.1%

- 99.3%

RCHRES 15

(2893E, 2893D) Load 400,318 37,279 ** 19,228 3,125 Not Applicable

- 8,613

- 1,427

- 452,765

RCHRES 15

(2893E, 2893D) % Load 4 87.0% 8.1% ** 4.2% 0.7% Not Applicable

- 1.9%

- 0.3%

- 98.4%

RCHRES 20

(2893C) Load 452,765 Not Applicable 6,337 403 3,449

- 1,346

- 193

- 458,351

RCHRES 20

(2893C) % Load 4 97.8% Not Applicable 1.4% 0.1% 0.7%

- 0.3% 0.0%

- 99.0%FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 99 Table 4.17

. Summary of Relative Contributions of Flow and TN and TP Loadings from Different Sources

1 The upstream contribution strictly represents the contribution from the boundary contribution from the Upper St. Johns River and the Econlockhatchee River basins.

Parameter Upstream 1 Lake Jesup Watershed Direct Rainfall Point Source Total

Flow (ac

- ft) 1,391,193 96,306 217,897 91,568 1,445 1,798,409

Flow ( %) 77.4% 5.4% 12.1% 5.1% 0.1% 100.0%

TN Loading (lb s /yr) 5,419,279 551,383 718,907 138,632 31,197 6,859,398

TN Loading ( %) 79.0% 8.0% 10.5% 2.0% 0.5% 100.0%

TP Loading (lb s /yr) 352,415 37,279 73,961 6,565 3,449 473,669

TP Loading ( %) 74.4% 7.9% 15.6% 1.4% 0.7% 100.0%FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 100 

# Chapter 5: DETERMINATION OF ASSIMILATIVE

CAPACITY

5.1 Over all Approach

The calibrated HSPF Model described in Chapter 4 was used to estimate the target TN and TP

loadings into the impaired Middle St. Johns River segment s that will produce the target TN and

TP concentrations. To achieve the target concentrations in these impaired segments, the

required percent reductions of TN and TP loadings to achieve the Lake Jesup nutrient TMDLs

— i.e., a 50 percent reduction in TN and a 34 percent reduction in TP

— were applied to the

boundary loadings of TN and TP, respectively, from the Lake Jesup outlet. Pollutant loadings

were adjusted at the upstream boundary where the Upper St. Johns River and the

Econlockhatchee River discharge into the impaired Middle St. Johns River segments

.

T he percent reductions applie d to the upst ream boundar y were also applied to loadings from the

human land use areas located in all the immediate watershed s . These human land use s

include low

- , medium

- , and high

- density residential ; industrial ; and agricultural. The loadings

from failed septic ta nks within 50 f ee t of receiving waters were set to 0 under the target

condition. The loading adjustment was reiterated until annual average TN and TP

concentrations in all the impaired segments met the TN and TP concentration targets (1.18

mg/L for TN and 0.07 mg/L for TP) for the modeled period from 1996 through 2003. The final

nutrient loadings that met the water column nutrient targets were considered the TMDLs for

these impaired segments.

Nutrient loading limits were also established for the Sanford /N orth WWT F . Although the long

term annual nutrient loadings from the facility only account for less than 1 percent of the total

loadings received by St. Johns River above Wekiva River, the amount of nutrient loading from

the facility was comparable to the pollutant loading created from the watershed immediately

adjacent to this river segment ( Tables 4.15 and 4.16 ). Therefore, the same percent reduction

rates applied to human land use s in the watershed were also applied to the discharge from the

facility. Nutrient loadings from precipitation falling directly onto the surface of receiving waters

were kept the same as the loadings for the existing condition.

Tables 5.1 and 5.2 list the target nutrient loadings from different sources for each segment for

the m odel simulation period (1996

– 2003). Long

- term average annual loading s from all the

sources are also listed for each impaired segment. Table 5.3 compares the existing loadings

and target loadings for TN and TP from nonpoint sources and lists the percent r eductions

needed to achieve the target TN and TP concentrations in the impaired segments. Based on

Table 5.3 , the TN from nonpoint sources needs to be reduced by about 37 to 39 percent to

achieve the TN target of 1.18 mg/L in the impaired segments. T he T P from nonpoint sources

need s to be reduced by about 37 to 39 percent to achieve the TP target concentration of 0.07

mg/L in the impaired segments. The average need ed reduction s of 38 and 32 percent in

nonpoint source TN and TP loadings, respectively, were applied as the needed reduction s to

the discharge from the Sanford / North WWTP. The loading limits for the facility are therefore

19,342 and 2,345 lbs/yr for TN and TP, respectively.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 101 Table 5.1

. TN Target Loads (lbs/yr) from Different Sources

1 Main Stem Upstream Input includes only the TN loading from the immediate upstream main stem segment. Loading through t ributary inflow is not included.

2 Watershed Input includes the loading from the sub

- basins directly discharging to the river segment under ques tion.

* Boundary TN loading from the Upper St. Johns River and the Econlockhatchee River ( yellow highlighting).

** Boundary TN loading from the Lake Jesup outlet ( green highlighting).

RCHRES ( WBID s ) Year Main Stem

Upstream Input 1 Lake Jesup

Input Watershe d

Input 2 Direct Rainfall Point Source

Contribution Total Nonpoint

Source Loading Total Load

RCHRES 8

(2964A) 1996 3,931,454 * Not Applicable 80,135 53,861 Not Applicable 4,065,450 4,065,450

RCHRES 8

(2964A) 1997 2,221,019* Not Applicable 36,511 37,371 Not Applicable 2,294,901 2,294,901

RCHRES 8

(2964A) 1998 5,267,240* Not Applicable 62,839 56,743 Not Applicable 5,386,822 5,386,822

RCHRES 8

(2964A) 1999 1,776,338* Not Applicable 37,294 34,053 Not Applicable 1,847,685 1,847,685

RCHRES 8

(2964A) 2000 2,720,575* Not Applicable 52,447 35,703 Not Applicable 2,808,725 2,808,725

RCHRES 8

(2964A) 2001 2,211,812* Not Applicable 34,450 39,331 Not Applicable 2,285,593 2,285,593

RCHRES 8

(2964A) 2002 4,992,861* Not Applicable 70,052 55,789 Not Applicable 5,118,702 5,118,702

RCHRES 8

(2964A) 2003 2,891,238* Not Applicable 95,818 49,623 Not Applicable 3,036,679 3,036,679

RCHRES 8

(2964A) Mean 3,251,567 * Not Applicable 58,693 45,309 Not Applicable 3,355,569 3,355,569

RCHRES 11

(2964, 2893F) 1996 4,132,245 Not Applic able 472,942 23,812 Not Applicable 4,628,999 4,628,999

RCHRES 11

(2964, 2893F) 1997 2,223,664 Not Applicable 251,787 17,123 Not Applicable 2,492,574 2,492,574

RCHRES 11

(2964, 2893F) 1998 5,333,093 Not Applicable 468,608 24,167 Not Applicable 5,825,868 5 ,825,868

RCHRES 11

(2964, 2893F) 1999 1,824,201 Not Applicable 269,852 15,523 Not Applicable 2,109,576 2,109,576

RCHRES 11

(2964, 2893F) 2000 2,830,927 Not Applicable 272,945 14,812 Not Applicable 3,118,684 3,118,684

RCHRES 11

(2964, 2893F) 2001 2,131,726 Not Applicable 331,172 17,056 Not Applicable 2,479,954 2,479,954

RCHRES 11

(2964, 2893F) 2002 5,143,589 Not Applicable 480,024 21,728 Not Applicable 5,645,341 5,645,341

RCHRES 11

(2964, 2893F) 2003 2,988,619 Not Applicable 623,218 23,084 Not Applicabl e 3,634,921 3,634,921FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 102 RCHRES ( WBID s ) Year Main Stem

Upstream Input 1 Lake Jesup

Input Watershe d

Input 2 Direct Rainfall Point Source

Contribution Total Nonpoint

Source Loading Total Load

RCHRES 11

(2964, 2893F) Mean 3,326,008 Not Applicable 396,319 19,663 Not Applicable 3,741,990 3,741,990

RCHRES 15

(2893E, 2893D) 1996 4,632,049 527,261 ** 148,821 77,316 Not Applicable 5,385,447 5,385,447

RCHRES 15

(2893E, 2893D) 1997 2,444,072 187,606 ** 82,866 55,675 Not Applicable 2,770,219 2,770,219

RCHRES 15

(2893E, 2893D) 1998 5,775,293 488,322 ** 145,607 78,331 Not Applicable 6,487,553 6,487,553

RCHRES 15

(2893E, 2893D) 1999 2,081,972 23,003 ** 95,115 56,672 Not Applicable 2,256,762 2,256,762

RCHRES 15

(2893E, 2893D) 2000 3,124,862 270,617 ** 88,179 51,104 Not Applicable 3,534,762 3,534,762

RCHRES 15

(2893E, 2893D) 2001 2,399,787

- 137,176 ** 93,099 57,947 Not Applicable 2,413,657 2,413,657

RCHRES 15

(2893E, 2893D) 2002 5,627,53 4 381,327 ** 144,183 72,560 Not Applicable 6,225,604 6,225,604

RCHRES 15

(2893E, 2893D) 2003 3,585,671 464,573 ** 172,858 72,937 Not Applicable 4,296,039 4,296,039

RCHRES 15

(2893E, 2893D) Mean 3,708,905 275,692 ** 121,341 65,318 Not Applicable 4,171,256 4,171,256

RCHRES 20

(2893C) 1996 5,406,656 Not Applicable 54,513 9,668 33,426 5,470,837 5,504,263

RCHRES 20

(2893C) 1997 2,683,691 Not Applicable 32,077 7,376 12,077 2,723,144 2,735,221

RCHRES 20

(2893C) 1998 6,412,823 Not Applicable 69,135 10,541 12,063 6,492,499 6,504,562

RCHRES 20

(2893C) 1999 2,216,414 Not Applicable 37,198 6,552 4,870 2,260,164 2,265,034

RCHRES 20

(2893C) 2000 3,492,545 Not Applicable 38,267 6,303 5,373 3,537,115 3,542,488

RCHRES 20

(2893C) 2001 2,345,559 Not Applicable 38,858 7,15 6 22,722 2,391,573 2,414,295

RCHRES 20

(2893C) 2002 6,189,716 Not Applicable 49,403 9,160 36,244 6,248,279 6,284,523

RCHRES 20

(2893C) 2003 4,254,424 Not Applicable 75,972 9,977 40,440 4,340,373 4,380,813

RCHRES 20

(2893C) Mean 4,125,229 Not Applicable 49,428 8,342 20,902 4,182,998 4,203,901FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 103 Table 5. 2. TP Target Loads (lbs/yr) from Different Sources

1 Main Stem Upstream Input includes only TP loading from the immediate upstream main stem segment. Loading through t ributary inflow is not included.

2 W atershed Input includes loading from the sub

- basins directly discharging to the river segment under question.

* Boundary TP loading from the Upper St. Johns River and Econlockhatchee River ( yellow highlighting).

** Boundary TP loading from the Lake Jesup outlet ( green highlighting).

RCHRES ( WBID s ) Year Main Stem

Upstream Input 1 Lake Jesup

Input Watershed

Input 2 Direct Rainfall Point Source

Contribution Total Nonpoint

Source Loading Total Load

RCHRES 8

(2964A) 1996 300,309 * Not Applicable 3,555 2,441 Not A pplicable 306,305 306,305

RCHRES 8

(2964A) 1997 149,559 * Not Applicable 1,977 1,849 Not Applicable 153,385 153,385

RCHRES 8

(2964A) 1998 273,478 * Not Applicable 3,142 2,557 Not Applicable 279,177 279,177

RCHRES 8

(2964A) 1999 122,216 * Not Applicable 2,018 1,692 Not Applicable 125,926 125,926

RCHRES 8

(2964A) 2000 177,616 * Not Applicable 2,275 1,864 Not Applicable 181,755 181,755

RCHRES 8

(2964A) 2001 235,217 * Not Applicable 1,708 1,849 Not Applicable 238,774 238,774

RCHRES 8

(2964A) 2002 394,763 * Not Applicable 3,200 2,489 Not Applicable 400,452 400,452

RCHRES 8

(2964A) 2003 235,788 * Not Applicable 4,374 2,274 Not Applicable 242,436 242,436

RCHRES 8

(2964A) Mean 236,118 * Not Applicable 2,781 2,127 Not Applicable 241,026 241,026

RCHRES 11

(2964, 2893 F) 1996 318,582 Not Applicable 40,471 1,067 Not Applicable 360,120 360,120

RCHRES 11

(2964, 2893F) 1997 150,637 Not Applicable 21,741 829 Not Applicable 173,207 173,207

RCHRES 11

(2964, 2893F) 1998 274,167 Not Applicable 39,185 1,068 Not Applicable 314,420 314,420

RCHRES 11

(2964, 2893F) 1999 123,773 Not Applicable 24,012 769 Not Applicable 148,554 148,554

RCHRES 11

(2964, 2893F) 2000 187,035 Not Applicable 20,794 750 Not Applicable 208,579 208,579FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 104 RCHRES ( WBID s ) Year Main Stem

Upstream Input 1 Lake Jesup

Input Watershed

Input 2 Direct Rainfall Point Source

Contribution Total Nonpoint

Source Loading Total Load

RCHRES 11

(2964, 2893F) 2001 216,657 Not Applicable 32,333 798 Not Applicable 249,788 249,788

RCHRES 11

(2964, 2893F) 2002 410,570 Not Applicable 42,305 972 Not Applicable 453,847 453,847

RCHRES 11

(2964, 2893F) 2003 245,048 Not Applicable 54,536 1,030 Not Applicable 300,614 300,614

RCHRES 11

(2964, 2893F) Mean 240,809 Not Applicable 34,422 910 Not Applicable 276,141 276,141

RCHRES 15

(2893E, 2893D) 1996 362

, 952 42

, 787 ** 17,387 3,479 Not Applicable 426,605 426,605

RCHRES 15

(2893E, 2893D) 1997 170

, 537 14

, 969 ** 10,303 2,858 Not Applicable 198,667 198,667

RCHRES 15

(2893E, 2893D) 1998 310

, 097 37

, 048 ** 15,958 3,522 Not Applicable 366,625 366,625

RCHRES 15

(2893E, 2893D) 1999 145

, 913 5, 445 ** 11,470 2,832 Not Applicable 165,660 165,660

RCHRES 15

(2893E, 2893D) 2000 210

, 163 12

, 504 ** 9,063 2,755 Not Applicable 234,485 234,485

RCHRES 15

(2893E, 2893D) 2001 238

, 639 -6, 644 ** 10,949 2,864 Not Applicable 245,808 245,808

RCHRES 15

(2893E, 2893D) 2002 456

, 112 36

, 701 ** 15,756 3,349 Not Applicable 511,918 511,918

RCHRES 15

(2893E, 2893D) 2003 298

, 648 54

, 019 ** 18,319 3,341 Not Applicable 374,327 374,327

RCHRES 15

(2893E, 2893D) Mean 274,133 24,604 ** 13,650 3,125 Not Applicable 315,512 315,512

RCHRES 20

(2893C) 1996 431,075 Not Applicable 5,297 456 3,248 436,828 440,076

RCHRES 20

(2893C) 1997 192,762 Not Applicable 3 ,450 368 1,406 196,580 197,986

RCHRES 20

(2893C) 1998 359,532 Not Applicable 6,224 474 1,076 366,230 367,306

RCHRES 20

(2893C) 1999 157,937 Not Applicable 3,890 339 488 162,166 162,654FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 2964A) and St. Johns River above Wekiva River

(WBID 2893C), Nutrients and DO, December 2009



### Florida Department of Environmental Protection 105 RCHRES ( WBID s ) Year Main Stem

Upstream Input 1 Lake Jesup

Input Watershed

Input 2 Direct Rainfall Point Source

Contribution Total Nonpoint

Source Loading Total Load

RCHRES 20

(2893C) 2000 234,067 Not Applicable 3,564 343 375 237,974 238,349

RCHRES 20

(2893C) 2001 218,445 Not Applicable 4,102 352 2,718 222,899 225,617

RCHRES 20

(2893C) 2002 518,773 Not Applicable 4,961 434 4,026 524,168 528,194

RCHRES 20

(2893C) 2003 373,005 Not Applicable 6,821 454 5,148 380,280 385,428

RCHRES 20

(2893C) Mean 310,700 Not Applicable 4,789 403 2,311 315,891 318,203FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 106 Table 5. 3. Compar ison of Existing and Target Loadings TN and TP Loadings from

Nonpoint Sources

WBID Existing TN

Loading

(lbs/yr) Target TN

Loading

(lbs/yr) % TN

Reduction Existing TP

Loading

(lbs/yr) Target TP

Loading

(lbs/yr) % TP

Reduction

2964A 5,523,505 3,355,570 39% 357,810 241,026 33%

2964 + 2893F 5,949,422 3,741,990 37% 403,221 276,141 32%

2893E + 2893D 6,683,586 4,171,255 38% 459,950 315,512 31%

2893C 6,688,523 4,182,998 37 % 459,504 315,891 31%FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 107 

# Chapter 6: DETERMINATION OF THE TMDL

6.1 Expression and Allocation of the TMDL

The objective of a TMDL is to provide a basis for allocating acceptable loads among all of the

known pollutant sources in a watershed so that appropriate control measures can be

implemented and water quality standards achieved. A TMDL is expressed as the sum of all

point source loads ( w aste l oad allocations , or WLAs), nonpoint source loads (load allocations , or LAs), and an appropriate margin of safety (MOS), which takes into account any uncertainty

concerning the relationship between effluent limitations and water quality:

TMDL = **∑** WLAs + **∑** LAs + MOS

As discussed earlier, the WLA is broken out into separate subcategories for wastewater

discharges and stormwater discharges regulated under the NPDES Program:

TMDL **≅ ∑**  WLAs

wastewater 

### + **∑** WLAs NPDES Stormwater 

### + **∑** LAs + MOS

It sh ould be noted that the various components of the revised TMDL equation may not sum up

to the value of the TMDL because (1 ) the WLA for NPDES stormwater is typically based on the

percent reduction needed for nonpoint sources and is also accounted for within the LA, and (2 )

TMDL components can be expressed in different terms (for example, the WLA for stormwater is

typically expressed as a percent reduction, and the WLA for wastewater is typically expressed

as mass per day).

WLAs for stormwater discharges are typically expressed as percent reduction because it is very

difficult to quantify the loads from MS4s (given the numerous discharge points) and to

distinguish the loads from MS4s from other nonpoint sources (given the nature of stormwater

transport). The permitting of stormwater discharges also differs from the permitting of most

wastewater point sources. Because stormwater discharges cannot be centrally collected,

monitored, and treated, they are not subject to the same types of effluent limitations as

w astewater facilities, and instead are required to meet a performance standard of providing

treatment to the “maximum extent practical” through the implementation of BMPs.

This approach is consistent with federal regulations (40 CFR § 130.2[I]), which state that TMDLs

can be expressed in terms of mass per time (e.g., pounds per day), toxicity, or other appropriate

measure . TMDLs for the impaired Middle St. Johns River segments are expressed in terms of

lbs/yr and percent reduction of TN and TP, and represen t the long

- term average TN and TP

loadings that these river segments can assimilate and maintain balanced aquatic flora and

fauna ( Table 6.1 ).

Based on a recent EPA memorandum (2006), daily loads of TN and TP from point and nonpoint

sources were also cal culated ( Table 6.2 ) . These daily loads were calculated by dividing the

annual loads by 365 days/yr and are only provided in this report for informational purposes. The

implementation of the TMDLs in this report should be carried out using an annual time scale.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 108 Table 6. 1. TMDL Components for Nutrient

- Impaired Segments of t he Middle St.

Johns River

1 The required percent reduction for WLA NPDES Stormwater was considered the same as the required percent reduction for nonpoint

source loading ( Table 6.3 ). Re fer to the discussion in Section 6.3.2 for details.

WBID Parameter TMDL

( lb s /yr ) WLA NPDES

waste water (lb s /yr) WLA NPDES

Stormwater 1 LA

(lb s /yr) MOS

2964A TN 3,355,570 0 39% 3,355,570 Implicit

2964A TP 241,026 0 33% 241,026 Implicit

2964 + 2893F TN 3,741,990 0 37% 3,741,990 Implicit

2964 + 2893F TP 276,141 0 32% 276,141 Implicit

2893D + 2893E TN 4,171,255 0 38% 4,171,255 Implicit

2893D + 2893E TP 315,512 0 31% 315,512 Implicit

2893C TN 4,202,340 19,342 37% 4,182,998 Implicit

2893C TP 318,236 2,345 31 % 315,891 Implicit



### Table 6. 2. TMDL Daily Load for Nutrient

- Impaired Segments of t he Middle St.

Johns River

1 The required percent reduction for WLA NPDES Stormwater was considered the same as the required percent reduction for nonpoint

source loading ( Ta ble 6.3 ). Refer to the discussion in Section 6.3.2 for details.

WBID Parameter TMDL

(lbs/ day ) WLA NPDES

wastewater (lbs/ day ) WLA NPDES

Stormwater 1 LA

(lbs/ day ) MOS

2964A TN 9,193 0 39% 9,193 Implicit

2964A TP 660 0 33% 660 Implicit

2964 + 2893F TN 10,25 2 0 37% 10,252 Implicit

2964 + 2893F TP 757 0 32% 757 Implicit

2893D + 2893E TN 11,428 0 38% 11,428 Implicit

2893D + 2893E TP 864 0 31% 864 Implicit

2893C TN 11,513 53 37% 11,460 Implicit

2893C TP 872 6 31% 865 ImplicitFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 109 

## 6.2 Load Allocation

As show n in the loading estimates in Chapter 5, the vast majority of TN and TP loadings

discharged into the impaired Middle St. Johns River segments come from nonpoint sources.

Point source discharge s of TN and TP account for le ss than 1 percent of the total nutrient

loadings from all sources

. Major sources of nonpoint nutrient loadings include watershed

contributions (surface runoff, interflow, and baseflow)

, upstream contribution s , and direct

atmospheric deposition onto these river segments. In most cases, nonpoint sources of TN and

TP loadings were dominated by the upstream contribution s.

As discussed in previous sections, the SJRWMD’s HSPF Model treated the Middle St. Johns

River from the inlet of Lake Harney to the confluence of the Wekiva River and the St. Johns

River as four separate model segments : RCHRES 8, RCHRES 11, RCHRES 15, and RCHRES

20. Each of these segments includes either one or two WBIDs, which are listed in Table 6.3

. The table also lists the existing loadings, load allocation, and percent reduction needed to

achieve the target TN and TP concentrations in the impaired Middle St. Johns River segments.

Table 6.3. Required Percent Reductions o f TN and TP Loads , by WBID, To Achieve

Restoration Targets (Excluding Atmospheric Deposition)

WBID TN Existing

Nonpoint Load

(lbs/yr) TN LA

(lbs/yr) TN %

R eduction TP Existing

Nonpoint Load

(lbs/yr) TP LA

(lbs/yr) TP %

R eduction

2964A

(RCHRES8) 5,523,505 3,355,570 39% 357,810 241,026 33%

2964 + 2893F

(RCHRES11) 5,949,422 3,741,990 37% 403,221 276,141 32 %

2893E +

2893D

(RCHRES15) 6,683,586 4,171,255 38% 459,950 315,512 31%

2893C

(RCHRES20) 6,688,523 4,182,998 37% 459,504 315,891 31%



### As listed in Table 6.3 , the percent reduction of TN to achieve the target TN concentration of

1.18 mg/L in the i mpaired Middle St. Johns River segments range s from 37 to 39 percent

, averaging about 38 percent . About 31 to 33 percent of the nonpoint source TP should be

reduced in order to achieve the target TP concentration of 0.07 mg/L in the impaired segments.

It should be noted that these percent reductions are for the total loadings from all nonpoint

sources

, including upstream contribution s , loadings from the watershed s immediately adjacent

to the impaired segments, and atmospheric deposition. The percent reductions ap plied to the

loadings from the watersheds upstream of Lake Harney, including the Upper St. Johns Basin

and the Econlockhatchee Basin, are 40 percent for TN and 35 percent for TP.

TN and TP loadings coming from the Lake Jesup watershed are an other upstrea m contribution

to all the impaired segments downstream of the Lake Jesup outlet (WBIDs 2893E, 2893D, and

2893C). The percent reductions applied to the Lake Jesup outlet loadings are consistent with

the Lake Jesup nutrient TMDLs, which are 50 percent for T N and 34 percent for TP. The 40

percent and 35 percent reductions for TN and TP , respectively, applied to the nutrient

contributions upstream of Lake Harney were also applied to the loadings coming from all the

human land uses in adjacent watershed s, whic h include low

- , medium

- , and high

- densityFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 110 residential ; industrial ; and agricultural areas . These nutrient reductions are all needed to

achieve the target TN and TP concentrations in the impaired Middle St. Johns River segments.



## 6.3 Wasteload Allocation

**6.3.1 N PDES**  **Wastewater Discharges**

With in the watersheds of the impaired Middle St. Johns River segments, only one NPDES

permitted facility, Sanford / North WWT F , was considered a major contribut o r of nutrients to the

impaired river segments. The facility discharges to the farthest downstream impaired segment

(WBID 2893C) included in this TMDL report. Although TN and TP loadings from the facility only

account for less than 1 percent of the total TN and TP loadings received by this segment, the

facility is c urrently no t at the advanced wastewater treatment (AWT) level . In addition, the

annual nutrient loadings from the facility are comparable to the total loadings created from the

entire watershed immediately adjacent to WBID 2893C. Therefore, reduction s in TN and TP

loadings from the facility of 38 and 32 percent , respectively, are recommended. These are

averages of the needed percent reductions of TN and TP applied to the nonpoint source

loadings in all the impaired segments. The final wasteload allocations of TN and TP to the

facility are 19,342 and 2,345 lbs/yr, respectively.



## 6.3.2 N **PDES Stormwater Discharges** 

Because no information was available to the Department when this analysis was conducted on the boundaries and locations of all the NPDES stormwater dischargers, the exact stormwater

TN and TP loadings from MS4 areas were not explicitly estimated

. The wasteload allocations

for each of the MS4s are the same percent TN and TP reduction s required for the LA assigned

to the nonpoint sources in the riv er segments that belong to each county and municipality.

Table 4. 2 lists t he MS4 permits that will be influenced by the TMDLs covered in this report

. It

should be noted that any MS4 permittee is only responsible for reducing the loads associated

with sto rmwater outfalls that it owns or otherwise has responsible control over, and it is not

responsible for reducing other nonpoint source loads in its jurisdiction.



## 6.4 Margin of Safety

Consistent with the recommendations of the Allocation Technical Advisory Committee

( Department , 2001), an implicit MOS was provided in the development of this TMDL by the

conservative decisions associated with a number of modeling assumptions, the development of

site

- specific alternative water quality targets, and the development of assimilative capacity.

The Middle St. Johns River TMDLs were developed using an implicit MOS

. As discussed in

Section 4.2.2.4

, when this report was written, no data were available to show the exact

contribution from the Floridan aquifer through up welling

. A s ignificant Floridan aquifer

contribution through seepage is possible because the potentiometric head of the aquifer is at or

higher than the water surface elevation in this area (Gardner et al.

, 1991). In addition, salinity

observed in the La ke Harney and Lake Monroe areas also suggest s a Floridan aquifer

contribution ( Department, 2005 ). In this TMDL report, because of the lack of ground water data,

the possible ground water flow was attributed to the watershed flow during the hydrology

calib ration. Th is assumption overestimate s the contribution from human source s and therefore

adds to the MOS . In addition, the HSPF Model setup by the SJRWMD assumes no sediment

nutrient flux from most of the river and lake segments included in the model. This assumption

also emphasi zes the watershed loading estimates, adding to the MOS of this TMDL.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 111 

# Chapter 7: TMDL IMPLEMENTATION

7.1 Basin Management Action Plan

Following the adoption of th ese TMDL s by rule, the Department will determine the best course

o f action regarding their implementation. Depending on the pollutant(s) causing the waterbody

impairment and the significance of the waterbody, the Department will select the best course of

action lead ing to the development of a plan to restore the waterbo dy. Often this will be

accomplished cooperatively with stakeholders by creating a Basin Management Action Plan,

referred to as the BMAP. B MAPs are the primary mechanism through which TMDLs are

implemented in Florida ( see Subsection 403.067 [7 ], F.S. ). A single BMAP may provide the

conceptual plan for the restoration of one or many impaired waterbodies.

If the Department determines that a BMAP is needed to support the implementation of th ese

TMDL s, a BMAP will be developed through a transparent

, stakeholder

- driven process intended

to result in a plan that is cost

- effective, technically feasible, and meets the restoration needs of

the applicable waterbodies. Once adopted by order of the Department Secretary, BMAPs are

enforceable through wastewater and mu nicipal stormwater permits for point sources and

through BMP implementation for nonpoint sources. Among other components, BMAPs typically

include the following :

**•** Water quality goals (based directly on the TMDLs);

**•** Refined source identification;

**•** Load reduction requirements for stakeholders (quantitative detailed allocations, if

technically feasible);

**•** A description of the load reduction activities to be undertaken, including structural

projects, nonstructural BMPs, and public education and outreach;

**•** A description of further research, data collection, or source identification needed in order

to achieve the TMDLs;

**•** Timetables for implementation;

**•** Implementation funding mechanisms;

**•** An evaluation of future increases in pollutant loading due to population growth;

**•** Impl ementation milestones, project tracking, water quality monitoring, and adaptive

management procedures; and

**•** Stakeholder statements of commitment (typically a local government resolution).

BMAPs are updated through annual meetings and may be officially revised every five years.

Completed BMAPs in the state have improved communication and cooperation among local

stakeholders and state agencies ; improved internal communication within local governments ;

applied high

- quality science and local information in managing water resources ; clarified the

obligations of wastewater point source, MS4

, and non

- MS4 stakeholders in TMDL

implementation ; enhanced transparency in the Department’s decision making ; and built strong

relationships between the Department and local stakeholders that have benefited other program

areas.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 112 

## 7.2 Other TMDL Implementation Tools

However, in some basins, and for some parameters, particularly those with fecal coliform

impairments, the development of a BMAP using the process described above wil l not be the

most efficient way to restore a waterbody, such that it meets its designated uses. This is

because fecal coliform impairments result from the cumulative effects of a multitude of potential

sources, both natural and anthropogenic. Addressing these problems requires good old

fashioned detective work that is best done by those in the area.

A multitude of assessment tools is available to assist local governments and interested

stakeholders in this detective work. The tools range from the simple (such as Walk the WBIDs

and GIS mapping) to the complex (such as bacteria source tracking). Department staff will

provide technical assistance, guidance, and oversight of local efforts to identify and minimize

fecal coliform sources of pollution. Based on work in the Lower St Johns River tributaries and

the Hillsborough Basin, the Department and local stakeholders have developed a logical

process and tools to serve as a foundation for this detective work. In the near future, t he

Department will be releasing these tools to assist local stakeholders with the development of

local implementation plans to address fecal coliform impairments. In such cases, the

Department will rely on these local initiatives as a more cost

- effective and simplified approach to

identify the actions needed to put in place a road map for restoration activities, while still

meeting the requirements of Subsection 403.067(7), F.S.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 113 

# References

Anderson, W.T., L.J. Scinto, E.E. Gaiser, B. Carroll, A. Quillen, and J. Haberer. 2004. La ke

Monroe sediment accumulation and past water quality. Final Report to the St. Johns River

Water Management District. Contract # SG452AA. Miami, FL : Southeast Environmental

Research Center, Florida International University.

Anderson, W.T., L.J. Scinto, E.E. Gaiser, B. Carroll, A. Quillen, and D. Johnson. 2006. Lake

Harney sediment accumulation and past water quality

. St. Johns River Water Management

District. Contract # SH45213. Miami, FL : Southeast Environmental Research Center,

Florida Interna tional University.

BCI Engineers and Scientists. 2008. Lakes George, Harney, and Monroe TMDL and pre

BMAP. Florida Department of Environmental Protection. BCI Project No: 6

- 15921.

Bergman, M.J. 2004. Land use classification table

. Internal Document

. Palatka, FL: St. Johns

River Water Management District.

Bicknell, B.R., J.C. Imhoff, J.L. Kittle Jr., T.H. Jobes, and A.S. Donigian, Jr. 200 4

. Hydrological

Simulation Program

– Fortran (HSPF) : User’s manual for Release 12. U.S. EPA National

Exposure Research Laboratory, Athens, GA, in cooperation with the U.S. Geological

Survey, Water Resources Division, Reston, VA.

Brezonik, P.L, C.D. Hendry Jr., E.S. Edgerton, R.L. Schulze, and T.L. Crisman. 1983. Acidity,

nutrients , and minerals in atmospheric pre cipitation over Florida: Deposition patterns

, mechanisms , and ecological effects

. Prepared for the Environmental Research L aboratory,

U .S. Environmental Protection Agency , Corvallis, OR.

C amp Dresser Mckee. 2002. Literature review of stormwater best ma nagement practices

. Final Report to the St. Johns River Water Management District, Palatka, FL.

Center for Watershed Protection. 2000. National pollutant removal database for stormwater

treatment practices , 2 nd 

### Edition. Prepared by the Center for Watershed Protection, Ellicott

City, MD ; Tetra Tech, Inc., Fairfax, VA ; and U.S. Environmental Protection Agency, Office

of Science and Technology, Washington, DC.

Florida Administrative Code. Rule 62

- 302, Surface water quality standards.

———

. Rule 62

- 303, Id entification of impaired surface waters.

Florida Department of Environmental Protection. February 1, 2001. A report to the Governor

and the Legislature on the allocation of Total Maximum Daily Loads in Florida.

Tallahassee, FL: Bureau of Watershed Management, Division of Water Resource

Management.

———

. March 2003

. Basin status report: Middle St. Johns. Tallahassee, FL: Bureau of

Watershed Management. Available: http:// www.dep.state.fl.us/water/basin411/

sj_middle/status.htm

.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 114 ———

. 2005. Water quality assessment report: Middle St. Johns. Tallahassee, FL: Bureau of

Watershed Management. Available: http://www.dep.state.fl.us/water/basin411/

sj_middle/assessment.htm

.

Florida Department of Health Website

. 2004. Onsite s ewage p rograms s tatistical d ata.

Available: http://www.doh.state.fl.us/Environment/ostds/statistics/ostdsstatistics.htm

.

Florida Department of Transportation. 1985. Florida land use, cover and forms classification

system. Procedure No. 550

- 010

- 001

- A. State Topographic Burea u and Thematic Mapping

Section.

Florida Watershed Restoration Act. Chapter 99

- 223, Laws of Florida.

G ardner, T., C.M. Browner, J. Craft, H.L. Rhodes, W. Schmidt, and C. C. Aller. 1991. Florida’s

Ground Water Quality Monitoring Program: Hydrogeologic framework

. Florida Geological

Survey Special Publication No. 32. Florida Geological Survey.

Gerritsen, J.B., B.K. Jessup, E. Leppo, and J. White. 2000. Development of Lake Condition

Indexes (LCI) for Florida. Prepared for the Florida Department of Environmental Protection,

Tallahassee, Florida.

Huang, X., Z. Lin, and Y. Jia. 2007. Estimating the spatial distribution of stormwater best

management practices in the St. Johns River Water Management District. BCI Engineers

and Scientists, Inc. Special Pu blication SJ2007

- SP20.

Huber , W. C ., R. E. Dickinson, and S. D. Preston. 1982. A classification of Florida lakes.

Department of Environmental Engineering Sciences, University of Florida, Gainesville.

Prepared for the Florida Department of Environmental Protection, Tallahassee Florida.

Jia, Y. 2008. Hydrologic and water quality modeling of the Econlockhatchee River watershed

using Hydrological Simulation Program

– Fortran (HSPF). St. Johns River Water

Management District.

Keesecker, D.H. 1992. Lake J essup restoration diagnostic evaluation water budget and

nutrient budget

. Prepared for the St. Johns River Water Management District. Gainesville,

FL: Water and Air Research, Inc.

National Atmospheric Deposition Program Website. 2009. Available: http://nadp.sws.uiuc.edu

.

Omernik, J. M. 1987. Ecoregions of the conterminous United States

. Annals of the Association

of American Geographers 77: 118

- 125.

Parsons Engineering Science, Inc. 2000. Lake Jesup water and nutrient budget report

. Prepared for the St. Johns River Water Management District, Palatka, FL.

P aul, M.J. and J. Gerritsen. 2002. Nutrient criteria for Florida lakes : A comparison of

approaches

. Prepared for the Florida Department of Environment al Protection. Tetra

Tech, Inc. , 400 Re d Brook Boulevard, Suite 20 0 , Owings Mills, MD 21117.

Seminole County Website . 2009. Seminole County w ater a tlas

. Available: http://www.

seminole.wateratlas.usf.edu/

.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### Florida Department of Environmental Protection 115 S t. Johns River Water Management District . J anuary 2002

. Middle St. Johns River Basin

Surface Water Improvement and Management Plan. Palatka, FL: St. Johns River Water

Management District

.

S t. Johns River Water Management District Website . 2009. Volusia County springs. Available:

http://sjr.state.fl.us/springs/volusia/index.html

.

Tibbals, C.H. 1990. Hydrology of the Floridan aquifer system in east

- central Florida

– Regional

aquifer system analysis

– Floridan aquifer system

. Profe ssional Paper 1403

- E. Washington,

DC : U .S. Geological Survey.

U.S. Census Bureau Website. 2000. State and county quickfacts. Available:

http://quickfacts.census.gov/qfd/states/12/12117.html

.

U . S. Environmental Protection Agency. 1980. Design manual

– Onsite wastewater treatment

and disposal systems

. Washington, DC: Office of Water.

———

. 1999. Preliminary data summary of u rban stormwater best management practices

. EPA

- 821 -R- 99

- 012 . Washington, DC: Office of Water.

———

. November 15, 2006. Memorandum from Benjamin H. Grumbles, Assistant

Administrator. Establishing “daily” loads in light of the decision by the U.S. Court of

Appeals for the D.C. Circuit in Friends of the Earth , Inc. v. EPA et al., No. 05

- 5015 (April 25,

2006), and implications for NPDES permits. Washington, DC: Office of Water. Available:

http://www.epa.gov/owow/tmdl/dailyloadsguidance.htm l

.

U .S. Geological Survey W ebsite . 2009. USGS surface

- water data for the nation. Available:

WMM User’s Manual 4.1. 1998. Technical memorandum : Rouge River National Wet Weather

Demonstration Project : Wayne County, Michigan. RPO

- NPS

- TM27.02. http://waterdata.usgs.gov/usa/nwis/sw

.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 116

Florida Department of Environmental Protection 

# Appendices

Appendix A: Background Information on Federal and State Stormwater Programs

In 1982, Florida became the first state in the country to implement statewide regulations to

address the issue of nonpoint source pollution by requiring new development and

redevelopment to treat stormwater before it is discharged. The Stormwater Rule, as authorized

in Chapter 403, F.S., was established as a technology

- based progra m that relies on the

implementation of BMPs that are designed to achieve a specific level of treatment (i.e.,

performance standards) as set forth in Rule 62

- 40, F.A.C. In 1994, the Department’s

stormwater treatment requirements were integrated with the st ormwater flood control

requirements of the state’s water management districts, along with wetland protection

requirements, into the Environmental Resource Permit regulations.

Rule 62

- 40, F.A.C., also requires the water management districts to establish sto rmwater

Pollutant Load Reduction Goals (PLRGs) and adopt them as part of a Surface Water

Improvement and Management ( SWIM ) plan, other watershed plan, or rule. Stormwater PLRGs

are a major component of the load allocation part of a TMDL. To date, stormwater PLRGs have

been established for Tampa Bay, Lake Thonotosassa, the Winter Haven Chain of Lakes, the

Everglades, Lake Okeechobee, and Lake Apopka.

In 1987, the U.S. Congress established Section 402(p) as part of the federal Clean Water Act

Reauthorizati on. This section of the law amended the scope of the federal NPDES permitting

program to designate certain stormwater discharges as “point sources” of pollution. The EPA

promulgated regulations and began implementing the Phase I NPDES S tormwater P rogram in

1990. These stormwater discharges include certain discharges that are associated with

industrial activities designated by specific standard industrial classification (SIC) codes,

construction sites disturbing 5 or more acres of land, and the master dra inage systems of local

governments with a population above 100,000, which are better known as MS4s. However,

because the master drainage systems of most local governments in Florida are interconnected,

the EPA implemented Phase I of the MS4 permitting program on a countywide basis, which

brought in all cities (incorporated areas), Chapter 298 urban water control districts, and the

F DOT throughout the 15 counties meeting the population criteria. EPA authorized the

Department to implement the NPDES Stormwat er Program ( except for tribal lands) in October

2000

.

An important difference between the federal NPDES and the state’s stormwater/environmental

resource permitting programs is that the NPDES Program covers both new and existing

discharges, while the state’s program focuses on new discharges only. Additionally, Phase II of

the NPDES Program, implemented in 2003, expands the need for these permits to construction

sites between 1 and 5 acres, and to local governments with as few as 1,000 people. The

revise d rules require that these additional activities obtain permits by 2003.

While these urban stormwater discharges are now technically referred to as “point sources” for

the purpose of regulation, they are still diffuse sources of pollution that cannot be ea sily

collected and treated by a central treatment facility, as are other point sources of pollution such

as domestic and industrial wastewater discharges. It should be noted that all MS4 permits

issued in Florida include a reopener clause that allows permit revisions to implement TMDLs

when the implementation plan is formally adopted.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 117

Florida Department of Environmental Protection 

## Appendix B : HSPF Model UCI File from the S JRWMD

RUN

*** Lake Harney watershed: perlnd 101

- 313, implnd 101

- 304, rchres 1

- 11

*** Lake Monroe watershed: perlnd 501

- 67 3, implnd 501

- 664, rchres 12

- 20

*** rchres 116 and 117 are dry and wet ponds drain to rchres 1,

*** rchres 126 and 127

- > rchres 2,

*** ...,

*** rchres 306 and 307

- > rchres 20

GLOBAL

UCI for Hydrologic Calibration at Deep Creep/Lake Harney

START 1995/01/01 00:00 END 2003/09/30 24:00

RUN INTERP OUTPT LEVELS 1 0

RESUME 0 RUN 1 UNITS 1

END GLOBAL

FILES

<FILE> <UN#>***<

---- FILE NAME -------------------------------------------------> MESSU 24 harney_monroe.ech

30 harney_monroe.out

WDM1 25 harney_monroe.wdm

WDM2 26 MSJR_NEX_W.wdm

BINO 27 h_m_lands.hbn

BINO 28 h_m_rchres.hbn

END FILES

OPN SEQUENCE

INGRP INDELT 01:00

*** harney subw 10&9

PERLND 281

PERLND 282

PERLND 2 83

PERLND 284

PERLND 285

PERLND 286

PERLND 287

PERLND 288

PERLND 289

PERLND 290

PERLND 291

PERLND 292

PERLND 293

IMPLND 281

IMPLND 282

IMPLND 283

IMPLND 284

RCHRES 206

RCHRES 207

RCHRES 10

PERLND 261

PERLND 262

PERLND 263

PER LND 264

PERLND 265

PERLND 266

PERLND 267

PERLND 268

PERLND 269FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 118

Florida Department of Environmental Protection PERLND 270

PERLND 271

PERLND 272

PERLND 273

IMPLND 261

IMPLND 262

IMPLND 263

IMPLND 264

RCHRES 196

RCHRES 197

RCHRES 9

*** harney subw 7&8

PERLND 221

PERLND 222

PERLND 223

PERLND 224

PERLND 225

PERLND 226

PERLND 227

PERLND 228

PERLND 229

PERLND 230

PERLND 231

PERLND 232

PERLND 233

IMPLND 221

IMPLND 222

IMPLND 223

IMPLND 224

RCHRES 7

PERLND 241

PERLND 242

PERLND 243

PERLND 244

PERLND 245

PERLND 246

PERLND 247

PERLND 248

PERLND 249

PERLND 250

PERLND 251

PERLND 252

PERLND 253

IMPLND 241

IMPLND 242

IMPLND 243

IMPLND 244

RCHRES 186

RCHRES 187

RCHRES 8

*** harney subw 2&4

PERLND 121

PERLND 122

PERLND 123

PERLND 124

PERLND 125

PERLND 126

PERLND 127

PERLND 128

PERLND 129

PERLND 130

PERLND 131FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 119

Florida Department of Environmental Protection PERLND 132

PERLND 133

IMPLND 121

IMPLND 122

IMPLND 123

IMPLND 124

RCHRES 127

RCHRES 2

PERLND 161

PERLND 162

PERLND 163

PERLND 164

PERLND 165

PERLND 166

PERLND 167

PERLND 168

PERLND 169

PERLND 170

PERLND 171

PERLND 172

PERLND 173

IMPLND 161

IMPLND 162

IMPLND 163

IMPLND 164

RCHRES 147

RCHRES 4

*** harney subw 6&5

PERLND 201

PERLND 202

PERLND 203

PERLND 204

PERLND 205

PERLND 206

PERLND 207

PERLND 208

PERLND 209

PERLND 210

PERLND 211

PERLND 212

PERLND 213

IMPLND 201

IMPLND 202

IMPLND 203

IMPLND 204

RCHRES 167

RCHRES 6

PERLND 181

PERLND 182

PERLND 183

PERLND 184

PERLND 185

PERLND 186

PERLND 187

PERLND 188

PERLND 189

PERLND 190

PERLND 191

PERLND 192

PERLND 193

IMPLND 181

I MPLND 182FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 120

Florida Department of Environmental Protection IMPLND 183

IMPLND 184

RCHRES 5

*** harney subw 1&3

PERLND 101

PERLND 102

PERLND 103

PERLND 104

PERLND 105

PERLND 106

PERLND 107

PERLND 108

PERLND 109

PERLND 110

PERLND 111

PERLND 112

PERLND 113

IMPLND 101

IMPLND 102

IMPLND 103

IMPLND 104

RCHRES 116

RCHRES 117

RCHRES 1

PERLND 141

PERLND 142

PERLND 143

PERLND 144

PERLND 145

PERLND 146

PERLND 147

PERLND 148

PERLND 149

PERLND 150

PERLND 151

PERLND 152

PERLND 153

IMPLND 141

IMPLND 142

IMPLND 143

IMPLN D 144

RCHRES 136

RCHRES 137

RCHRES 3

*** septic tanks

COPY 3

*** harney subw 11

PERLND 301

PERLND 302

PERLND 303

PERLND 304

PERLND 305

PERLND 306

PERLND 307

PERLND 308

PERLND 309

PERLND 310

PERLND 311

PERLND 312

PERLND 313

IMPLND 301

IMPLND 302FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 121

Florida Department of Environmental Protection IMPLND 303

IMPLND 304

RCHRES 216

RCHRES 217

RCHRES 11

*** monroe subw 1&2

PERLND 501

PERLND 502

PERLND 503

PERLND 504

PERLND 505

PERLND 506

PERLND 507

PERLND 508

PERLND 509

PERLND 510

PERLND 511

PERLND 512

PERL ND 513

IMPLND 501

IMPLND 502

IMPLND 503

IMPLND 504

RCHRES 226

RCHRES 227

RCHRES 12

PERLND 521

PERLND 522

PERLND 523

PERLND 524

PERLND 525

PERLND 526

PERLND 527

PERLND 528

PERLND 529

PERLND 530

PERLND 531

PERLND 532

PERLND 533

IMPLND 521

IMPLND 522

IMPLND 523

IMPLND 524

RCHRES 236

RCHRES 237

RCHRES 13

*** monroe subw 3

PERLND 541

P ERLND 542

PERLND 543

PERLND 544

PERLND 545

PERLND 546

PERLND 547

PERLND 548

PERLND 549

PERLND 550

PERLND 551

PERLND 552

PERLND 553

IMPLND 541

IMPLND 542FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 122

Florida Department of Environmental Protection IMPLND 543

IMPLND 544

R CHRES 246

RCHRES 247

RCHRES 14

*** monroe subw 5&4

PERLND 581

PERLND 582

PERLND 583

PERLND 584

PERLND 585

PERLND 586

PERLND 587

PERLND 588

PERLND 589

PERLND 590

PERLND 591

PERLND 592

PERLND 593

IMPLND 581

IMPLND 582

IMPLND 583

IMPLND 584

RCHRES 266

RCHRES 267

RCHRES 16

PERLND 561

PERLND 562

PERLND 563

PERLND 564

PERLND 565

PERLND 566

PERLND 567

PERLND 568

PERLND 569

PERLND 570

PERLND 571

PERLND 572

PERLND 573

IMPLND 561

IMPLND 562

IMPLND 563

IMPLND 564

RCHRES 256

RCHRES 257

RCHRES 15

*** monroe subw 6&7

PERLND 601

PERLND 602

PERLND 603

PERLND 604

PERLND 605

PERLND 606

PERLND 607

PERLND 608

PERLND 609

PERLND 610

PERLND 611

PERLND 612

PERLND 613

IMPLND 601

IMPLND 602FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 123

Florida Department of Environmental Protection IMPLND 603

IM PLND 604

RCHRES 276

RCHRES 277

RCHRES 17

PERLND 621

PERLND 622

PERLND 623

PERLND 624

PERLND 625

PERLND 626

PERLND 627

PERLND 628

PERLND 629

PERLND 630

PERLND 631

PERLND 632

PERLND 633

IMPLND 621

IMPLND 622

IMPLND 623

IMPLND 624

RCHRES 286

RCHRES 287

RCHRES 18

*** monroe subw 8&9

PERLND 641

PERLND 642

PERLND 643

PERLND 644

PERLND 645

PERLND 646

PERLND 647

PERLND 648

PERLND 649

PERLND 650

PERL ND 651

PERLND 652

PERLND 653

IMPLND 641

IMPLND 642

IMPLND 643

IMPLND 644

*** FPL pond constantly withdraws and discharges water from and back to SJR.

*** Its net impact assumed to be negligible.

*** If it need to be explicitly modeled, RCHRES 19 should be added.

PERLND 661

PERLND 662

PERLND 663

PERLND 664

PERLND 665

PERLND 666

PERLND 667

PERLND 668

PERLND 669

PERLND 670

PERLND 671

PERLND 672

PERLND 673

IMPLND 661

IMPLND 662

IMPLND 663FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 124

Florida Department of Environmental Protection IMPLND 664

RCHRES 306

RCHRES 307

RCHRES 20

END INGRP

END OPN SEQUENCE

PERLND

ACTIVITY

*** <PLS > Active Sections ***

*** x

- x ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC ***

101 673 1 0 1 1 1 1 1 0 0 0 0 0

END ACTIVITY

PRINT

- INFO

*** < PLS> Print

- flags PIVL PYR

*** x

- x ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC

101 673 6 6 5 6 6 6 6 6 6 6 6 6 1 9

END PRINT

- INFO

BINARY

- IN FO

*** < PLS> Print

- flags PIVL PYR

*** x

- x ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC

101 673 5 6 5 5 5 5 5 6 6 6 6 6 1 9

END BINARY

- INFO

GEN

- INFO

*** Name Unit

- systems Printer BinaryOut

*** <PLS > t

- series Engl Metr Engl Metr

*** x

- x in out

101 LDR 1 1 0 0 27 0

102 MDR 1 1 0 0 27 0

103 HDR 1 1 0 0 27 0

104 IND 1 1 0 0 27 0

105 MIN 1 1 0 0 27 0

106 OPE 1 1 0 0 27 0

107 ANI 1 1 0 0 27 0

108 AGR 1 1 0 0 27 0

109 AGT 1 1 0 0 27 0

110 RAN 1 1 0 0 27 0

111 FOR 1 1 0 0 27 0

112 WAT 1 1 0 0 27 0

113 WET 1 1 0 0 27 0

121 LDR 1 1 0 0 27 0

122 MDR 1 1 0 0 27 0

123 HDR 1 1 0 0 27 0

124 IND 1 1 0 0 27 0

125 MIN 1 1 0 0 27 0

126 OPE 1 1 0 0 27 0

127 ANI 1 1 0 0 27 0

128 AGR 1 1 0 0 27 0

129 AGT 1 1 0 0 27 0

130 RAN 1 1 0 0 27 0

131 FOR 1 1 0 0 27 0

132 WAT 1 1 0 0 27 0

133 WET 1 1 0 0 27 0

141 LDR 1 1 0 0 27 0

142 MDR 1 1 0 0 27 0

143 HDR 1 1 0 0 27 0

144 IND 1 1 0 0 27 0

145 MIN 1 1 0 0 27 0

146 OPE 1 1 0 0 27 0FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 125

Florida Department of Environmental Protection

147 ANI 1 1 0 0 27 0

148 AGR 1 1 0 0 27 0

149 AGT 1 1 0 0 27 0

150 RAN 1 1 0 0 27 0

151 FOR 1 1 0 0 27 0

152 WAT 1 1 0 0 27 0

153 WET 1 1 0 0 27 0

161 LDR 1 1 0 0 27 0

162 MDR 1 1 0 0 27 0

163 HDR 1 1 0 0 27 0

164 IND 1 1 0 0 27 0

165 MIN 1 1 0 0 27 0

166 OPE 1 1 0 0 27 0

167 ANI 1 1 0 0 27 0

168 AGR 1 1 0 0 27 0

169 AGT 1 1 0 0 27 0

170 RAN 1 1 0 0 27 0

171 FOR 1 1 0 0 27 0

172 WAT 1 1 0 0 27 0

173 WET 1 1 0 0 27 0

181 LDR 1 1 0 0 27 0

182 MDR 1 1 0 0 27 0

183 HDR 1 1 0 0 27 0

184 IND 1 1 0 0 27 0

185 MIN 1 1 0 0 27 0

186 OPE 1 1 0 0 27 0

187 ANI 1 1 0 0 27 0

188 AGR 1 1 0 0 27 0

189 AGT 1 1 0 0 27 0

190 RAN 1 1 0 0 27 0

191 FOR 1 1 0 0 27 0

192 WAT 1 1 0 0 27 0

193 WET 1 1 0 0 27 0

201 LDR 1 1 0 0 27 0

202 MDR 1 1 0 0 27 0

203 HDR 1 1 0 0 27 0

204 IND 1 1 0 0 27 0

205 M IN 1 1 0 0 27 0

206 OPE 1 1 0 0 27 0

207 ANI 1 1 0 0 27 0

208 AGR 1 1 0 0 27 0

209 AGT 1 1 0 0 27 0

210 RAN 1 1 0 0 27 0

211 FOR 1 1 0 0 27 0

212 WAT 1 1 0 0 27 0

213 WET 1 1 0 0 27 0

221 LDR 1 1 0 0 27 0

222 MDR 1 1 0 0 27 0

223 HDR 1 1 0 0 27 0

224 IND 1 1 0 0 27 0

225 MIN 1 1 0 0 27 0

226 OPE 1 1 0 0 27 0

227 ANI 1 1 0 0 27 0

228 AGR 1 1 0 0 27 0

229 AGT 1 1 0 0 27 0

230 RAN 1 1 0 0 27 0

231 FOR 1 1 0 0 27 0

232 WAT 1 1 0 0 27 0

233 WET 1 1 0 0 27 0

241 LDR 1 1 0 0 27 0

242 MDR 1 1 0 0 27 0

243 HDR 1 1 0 0 27 0FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 126

Florida Department of Environmental Protection

244 IND 1 1 0 0 27 0

245 MIN 1 1 0 0 27 0

246 OPE 1 1 0 0 27 0

247 ANI 1 1 0 0 27 0

248 AGR 1 1 0 0 27 0

249 AGT 1 1 0 0 27 0

250 RAN 1 1 0 0 27 0

251 FOR 1 1 0 0 27 0

252 WAT 1 1 0 0 27 0

253 WET 1 1 0 0 27 0

261 LDR 1 1 0 0 27 0

262 MDR 1 1 0 0 27 0

263 HDR 1 1 0 0 27 0

264 IND 1 1 0 0 27 0

265 MIN 1 1 0 0 27 0

266 OPE 1 1 0 0 27 0

267 ANI 1 1 0 0 27 0

268 AGR 1 1 0 0 27 0

269 AGT 1 1 0 0 27 0

270 RAN 1 1 0 0 27 0

271 FOR 1 1 0 0 27 0

272 WAT 1 1 0 0 27 0

273 WET 1 1 0 0 27 0

281 LDR 1 1 0 0 27 0

282 MDR 1 1 0 0 27 0

283 HDR 1 1 0 0 27 0

284 IND 1 1 0 0 27 0

285 MIN 1 1 0 0 27 0

286 OPE 1 1 0 0 27 0

287 ANI 1 1 0 0 27 0

288 AGR 1 1 0 0 27 0

289 AGT 1 1 0 0 27 0

290 RAN 1 1 0 0 27 0

291 FOR 1 1 0 0 27 0

292 WAT 1 1 0 0 27 0

293 WET 1 1 0 0 27 0

301 LDR 1 1 0 0 27 0

302 MDR 1 1 0 0 27 0

303 HDR 1 1 0 0 27 0

304 IND 1 1 0 0 2 7 0

305 MIN 1 1 0 0 27 0

306 OPE 1 1 0 0 27 0

307 ANI 1 1 0 0 27 0

308 AGR 1 1 0 0 27 0

309 AGT 1 1 0 0 27 0

310 RAN 1 1 0 0 27 0

311 FOR 1 1 0 0 27 0

312 WAT 1 1 0 0 27 0

313 WET 1 1 0 0 27 0

***

501 LDR 1 1 0 0 27 0

502 MDR 1 1 0 0 27 0

503 HDR 1 1 0 0 27 0

504 IND 1 1 0 0 27 0

505 MIN 1 1 0 0 27 0

506 OPE 1 1 0 0 27 0

507 ANI 1 1 0 0 27 0

508 AGR 1 1 0 0 27 0

509 AGT 1 1 0 0 27 0

510 RAN 1 1 0 0 27 0

511 FOR 1 1 0 0 27 0

512 WAT 1 1 0 0 27 0FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 127

Florida Department of Environmental Protection

513 WET 1 1 0 0 27 0

521 LDR 1 1 0 0 27 0

522 MDR 1 1 0 0 27 0

523 HDR 1 1 0 0 27 0

524 IND 1 1 0 0 27 0

525 MIN 1 1 0 0 27 0

526 OPE 1 1 0 0 27 0

527 ANI 1 1 0 0 27 0

528 AGR 1 1 0 0 27 0

529 AGT 1 1 0 0 27 0

530 RAN 1 1 0 0 27 0

531 FOR 1 1 0 0 27 0

532 WAT 1 1 0 0 27 0

533 WET 1 1 0 0 27 0

541 LDR 1 1 0 0 27 0

542 MDR 1 1 0 0 27 0

543 HDR 1 1 0 0 27 0

544 IND 1 1 0 0 27 0

545 MIN 1 1 0 0 27 0

546 OPE 1 1 0 0 27 0

547 ANI 1 1 0 0 27 0

548 AGR 1 1 0 0 27 0

549 AGT 1 1 0 0 27 0

550 RAN 1 1 0 0 27 0

551 FOR 1 1 0 0 27 0

552 WAT 1 1 0 0 27 0

553 WET 1 1 0 0 27 0

561 LDR 1 1 0 0 27 0

562 MDR 1 1 0 0 27 0

563 HDR 1 1 0 0 27 0

564 IND 1 1 0 0 27 0

565 MIN 1 1 0 0 27 0

566 OPE 1 1 0 0 27 0

567 ANI 1 1 0 0 27 0

568 AGR 1 1 0 0 27 0

569 AGT 1 1 0 0 27 0

570 RAN 1 1 0 0 27 0

571 FOR 1 1 0 0 27 0

572 WAT 1 1 0 0 27 0

573 WET 1 1 0 0 27 0

581 LDR 1 1 0 0 27 0

582 MDR 1 1 0 0 27 0

583 HDR 1 1 0 0 27 0

584 IND 1 1 0 0 27 0

585 MIN 1 1 0 0 27 0

586 OPE 1 1 0 0 27 0

587 ANI 1 1 0 0 27 0

588 AGR 1 1 0 0 27 0

589 AGT 1 1 0 0 27 0

590 RAN 1 1 0 0 27 0

591 FOR 1 1 0 0 27 0

592 WAT 1 1 0 0 27 0

593 WET 1 1 0 0 27 0

601 LDR 1 1 0 0 27 0

602 MDR 1 1 0 0 27 0

603 HDR 1 1 0 0 27 0

604 IND 1 1 0 0 27 0

605 MIN 1 1 0 0 27 0

606 OPE 1 1 0 0 27 0

607 ANI 1 1 0 0 27 0

608 AGR 1 1 0 0 27 0

609 AGT 1 1 0 0 27 0FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 128

Florida Department of Environmental Protection

610 RAN 1 1 0 0 27 0

611 FOR 1 1 0 0 27 0

612 WAT 1 1 0 0 27 0

613 WET 1 1 0 0 27 0

621 LDR 1 1 0 0 27 0

622 MDR 1 1 0 0 27 0

623 HDR 1 1 0 0 27 0

624 IND 1 1 0 0 27 0

625 MIN 1 1 0 0 27 0

626 OPE 1 1 0 0 27 0

627 ANI 1 1 0 0 27 0

628 AGR 1 1 0 0 27 0

629 AGT 1 1 0 0 27 0

630 RAN 1 1 0 0 27 0

631 FOR 1 1 0 0 27 0

632 WAT 1 1 0 0 27 0

633 WET 1 1 0 0 27 0

641 LDR 1 1 0 0 27 0

642 MDR 1 1 0 0 27 0

643 HDR 1 1 0 0 27 0

644 IND 1 1 0 0 27 0

645 MIN 1 1 0 0 27 0

646 OPE 1 1 0 0 27 0

647 ANI 1 1 0 0 27 0

648 AGR 1 1 0 0 27 0

649 AGT 1 1 0 0 27 0

650 RAN 1 1 0 0 27 0

651 FOR 1 1 0 0 27 0

652 WAT 1 1 0 0 27 0

653 WET 1 1 0 0 27 0

661 LDR 1 1 0 0 27 0

662 MDR 1 1 0 0 27 0

663 HDR 1 1 0 0 27 0

664 IND 1 1 0 0 27 0

665 MIN 1 1 0 0 27 0

666 OPE 1 1 0 0 27 0

667 ANI 1 1 0 0 27 0

668 AGR 1 1 0 0 27 0

669 AGT 1 1 0 0 27 0

670 RAN 1 1 0 0 27 0

671 FOR 1 1 0 0 27 0

672 WAT 1 1 0 0 27 0

673 WET 1 1 0 0 27 0

END GEN

- INFO

ATEMP

- DAT

*** <PLS > ELDAT AIRTEMP

*** x

- x (ft) (deg F)

***

101 673

- 60. 32.

END ATEMP

- DAT

PWAT -PARM1

*** <PLS > Flags

*** x

- x CSNO RTOP UZFG VCS VUZ VNN VIFW VIRC VLE IFFC HWT IRRG

101 673 0 0 0 1 0 0 0 0 1 0 0 0

END PWAT -PARM1

PWAT -PARM2

*** < PLS> FOREST LZSN INFILT LSUR SLSUR KVARY AGWRC

*** x

- x (in) (in/hr) (ft) (1/in) (1/day)

101 0. 5.0 0.05 300. 0.007 2.0 0.960FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 129

Florida Department of Environmental Protection

102 0. 5.0 0.05 300. 0.007 2.0 0.960

103 0. 5.0 0.05 300. 0.007 2.0 0.960

104 0. 5.0 0.05 300. 0.007 2.0 0.960

105 0. 5.0 0.06 300. 0.007 2.0 0.960

106 0. 5.0 0.06 300. 0.007 2.0 0.9 60

107 0. 5.0 0.06 300. 0.007 2.0 0.960

108 0. 6.0 0.06 300. 0.007 2.0 0.960

109 0. 6.0 0.06 300. 0.007 2.0 0.960

110 0. 5.0 0.06 300. 0.007 2.0 0.960

111 0. 8.0 0.06 300. 0.007 2.0 0.960

112 0. 2.5 0.50 300. 0.001 2.0 0.995

113 0. 2.5 0.50 300. 0.001 2.0 0.995

121 0. 5.0 0.05 300. 0.006 2.0 0.960

122 0. 5.0 0.05 300. 0.006 2.0 0.960

123 0. 5.0 0.05 300. 0.006 2.0 0.960

124 0. 5.0 0.05 300. 0.006 2.0 0.960

125 0. 5.0 0.06 300. 0.006 2.0 0.960

126 0. 5.0 0.06 300. 0.006 2.0 0.960

127 0. 5.0 0.06 300. 0.006 2.0 0.960

128 0. 6.0 0.06 300. 0.006 2.0 0.960

129 0. 6.0 0.06 300. 0.006 2.0 0.960

130 0. 5.0 0.06 300. 0.006 2.0 0.960

131 0. 8.0 0.06 300. 0.006 2.0 0.960

132 0. 2.5 0.50 300. 0.001 2.0 0.995

133 0. 2.5 0.50 300. 0.001 2.0 0.995

141 0. 5.0 0.05 300. 0.012 2.0 0.960

142 0. 5.0 0.05 300. 0.012 2.0 0.960

143 0. 5.0 0.05 300. 0.012 2.0 0.960

144 0. 5.0 0.05 300. 0.012 2.0 0.960

145 0. 5.0 0.06 300. 0.012 2.0 0.960

146 0. 5.0 0.06 300. 0.012 2.0 0.960

147 0. 5.0 0.06 300. 0.012 2.0 0.960

148 0. 6.0 0.06 300. 0.012 2.0 0.960

149 0. 6.0 0.06 300. 0.012 2.0 0.960

150 0. 5.0 0.06 300. 0.012 2.0 0.960

151 0. 8.0 0.06 300. 0.012 2.0 0.960

152 0. 2.5 0.50 300. 0.001 2.0 0.995

153 0. 2.5 0.50 300. 0.001 2.0 0.995

161 0. 5.0 0.05 300. 0.005 2.0 0.960

162 0. 5.0 0.05 300. 0.005 2.0 0.960

163 0. 5.0 0.05 300. 0.005 2.0 0.960

164 0. 5.0 0.05 300. 0.005 2.0 0.960

165 0. 5.0 0.06 300. 0.005 2.0 0.960

166 0. 5.0 0.06 300. 0.005 2.0 0.960

167 0. 5.0 0.06 300. 0.005 2.0 0.960

168 0. 6.0 0.06 300. 0.005 2.0 0.960

16 9 0. 6.0 0.06 300. 0.005 2.0 0.960

170 0. 5.0 0.06 300. 0.005 2.0 0.960

171 0. 8.0 0.06 300. 0.005 2.0 0.960

172 0. 2.5 0.50 300. 0.001 2.0 0.995

173 0. 2.5 0.50 300. 0.001 2.0 0.995

181 0. 5.0 0.05 300. 0.007 2.0 0.960

182 0. 5.0 0.05 300. 0.007 2.0 0.960

183 0. 5.0 0.05 300. 0.007 2.0 0.960

184 0. 5.0 0.05 300. 0.007 2.0 0.960

185 0. 5.0 0.06 300. 0.007 2.0 0.960

186 0. 5.0 0.06 300. 0.007 2.0 0.960

187 0. 5.0 0.06 300. 0.007 2.0 0.960

188 0. 6.0 0.06 300. 0.007 2.0 0.960

189 0. 6.0 0.06 300. 0.007 2.0 0.960

190 0. 5.0 0.06 300. 0.007 2.0 0.960

191 0. 8.0 0.06 300. 0.007 2.0 0.960FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 130

Florida Department of Environmental Protection

192 0. 2.5 0.50 300. 0.001 2.0 0.995

193 0. 2.5 0.50 300. 0.001 2.0 0.995

201 0. 5.0 0.05 300. 0.003 2.0 0.960

202 0. 5.0 0.05 300. 0.003 2.0 0.960

203 0. 5.0 0.05 300. 0.003 2.0 0.960

204 0. 5.0 0.05 300. 0.003 2.0 0.960

205 0. 5.0 0.06 300. 0.003 2.0 0.960

206 0. 5.0 0.06 300. 0.003 2.0 0.960

207 0. 5.0 0.06 300. 0.003 2.0 0.960

208 0. 6.0 0.06 300. 0.003 2.0 0.960

209 0. 6.0 0.06 300. 0.003 2.0 0.960

210 0. 5.0 0.06 300. 0.003 2.0 0.960

211 0. 8.0 0.06 300. 0.003 2.0 0.960

212 0. 2.5 0.50 300. 0.001 2.0 0.995

213 0. 2.5 0.50 300. 0.001 2.0 0.995

221 0. 5.0 0.05 300. 0.005 2.0 0.960

222 0. 5.0 0.05 300. 0.005 2.0 0.960

223 0. 5.0 0.05 300. 0.005 2.0 0.960

224 0. 5.0 0.05 300. 0.005 2.0 0.960

225 0. 5.0 0.06 300. 0.005 2.0 0.960

226 0. 5.0 0.06 300. 0.005 2.0 0.960

227 0. 5.0 0.06 300. 0.005 2.0 0.9 60

228 0. 6.0 0.06 300. 0.005 2.0 0.960

229 0. 6.0 0.06 300. 0.005 2.0 0.960

230 0. 5.0 0.06 300. 0.005 2.0 0.960

231 0. 8.0 0.06 300. 0.005 2.0 0.960

232 0. 2.5 0.50 300. 0.001 2.0 0.995

233 0. 2.5 0.50 300. 0.001 2.0 0.995

241 0. 5.0 0.05 300. 0.006 2.0 0.960

242 0. 5.0 0.05 300. 0.006 2.0 0.960

243 0. 5.0 0.05 300. 0.006 2.0 0.960

244 0. 5.0 0.05 300. 0.006 2.0 0.960

245 0. 5.0 0.06 300. 0.006 2.0 0.960

246 0. 5.0 0.06 300. 0.006 2.0 0.960

247 0. 5.0 0.06 300. 0.006 2.0 0.960

248 0. 6.0 0.06 300. 0.006 2.0 0.960

249 0. 6.0 0.06 300. 0.006 2.0 0.960

250 0. 5.0 0.06 300. 0.006 2.0 0.960

251 0. 8.0 0.06 300. 0.006 2.0 0.960

252 0. 2.5 0.50 300. 0.001 2.0 0.995

253 0. 2.5 0.50 300. 0.001 2.0 0.995

261 0. 5.0 0.05 300. 0.007 2.0 0.960

262 0. 5.0 0.05 300. 0.007 2.0 0.960

263 0. 5.0 0.05 300. 0.007 2.0 0.960

264 0. 5.0 0.05 300. 0.007 2.0 0.960

265 0. 5.0 0.06 300. 0.007 2.0 0.960

266 0. 5.0 0.06 300. 0.007 2.0 0.960

267 0. 5.0 0.06 300. 0.007 2.0 0.960

268 0. 6.0 0.06 300. 0.007 2.0 0.960

269 0. 6.0 0.06 300. 0.007 2.0 0.960

270 0. 5.0 0.06 300. 0.007 2.0 0.960

271 0. 8.0 0.06 300. 0.007 2.0 0.960

272 0. 2.5 0.50 300. 0.001 2.0 0.995

273 0. 2.5 0.50 300. 0.001 2.0 0.995

281 0. 5.0 0.05 300. 0.039 2.0 0.960

282 0. 5.0 0.05 300. 0.039 2.0 0.960

283 0. 5.0 0.05 300. 0.039 2.0 0.960

284 0. 5.0 0.05 300. 0.039 2.0 0.960

285 0. 5.0 0.06 300. 0.039 2.0 0.960

286 0. 5.0 0.06 300. 0.039 2.0 0.960

287 0. 5.0 0.06 300. 0.039 2.0 0.960

288 0. 6.0 0.06 300. 0.039 2.0 0.960FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 131

Florida Department of Environmental Protection

289 0. 6.0 0.06 300. 0.039 2.0 0.960

2 90 0. 5.0 0.06 300. 0.039 2.0 0.960

291 0. 8.0 0.06 300. 0.039 2.0 0.960

292 0. 2.5 0.50 300. 0.001 2.0 0.995

293 0. 2.5 0.50 300. 0.001 2.0 0.995

301 0. 5.0 0.05 300. 0.014 2.0 0.960

302 0. 5.0 0.05 300. 0.014 2.0 0.960

303 0. 5.0 0.05 300. 0.014 2.0 0.960

304 0. 5.0 0.05 300. 0.014 2.0 0.960

305 0. 5.0 0.06 300. 0.014 2.0 0.960

306 0. 5.0 0.06 300. 0.014 2.0 0.960

307 0. 5.0 0.06 300. 0.014 2.0 0.960

308 0. 6.0 0.06 300. 0.014 2.0 0.960

309 0. 6.0 0.06 300. 0.014 2.0 0.960

310 0. 5.0 0.06 300. 0.014 2.0 0.960

311 0. 8.0 0.06 300. 0.014 2.0 0.960

312 0. 2.5 0.50 300. 0.001 2.0 0.995

313 0. 2.5 0.50 300. 0.001 2.0 0.995

***

501 0. 5.0 0.05 300. 0.013 2.0 0.960

502 0. 5.0 0.05 300. 0.013 2.0 0. 960

503 0. 5.0 0.05 300. 0.013 2.0 0.960

504 0. 5.0 0.05 300. 0.013 2.0 0.960

505 0. 5.0 0.06 300. 0.013 2.0 0.960

506 0. 5.0 0.06 300. 0.013 2.0 0.960

507 0. 5.0 0.06 300. 0.013 2.0 0.960

508 0. 6.0 0.06 300. 0.013 2.0 0.960

509 0. 6.0 0.06 300. 0.013 2.0 0.960

510 0. 5.0 0.06 300. 0.013 2.0 0.960

511 0. 8.0 0.06 300. 0.013 2.0 0.960

512 0. 2.5 0.50 300. 0.001 2.0 0.995

513 0. 2.5 0.50 300. 0.001 2.0 0.995

521 0. 5.0 0.05 300. 0.058 2.0 0.960

522 0. 5.0 0.05 300. 0.058 2.0 0.960

523 0. 5.0 0.05 300. 0.058 2.0 0.960

524 0. 5.0 0.05 300. 0.058 2.0 0.960

525 0. 5.0 0.06 300. 0.058 2.0 0.960

526 0. 5.0 0.06 300. 0.058 2.0 0.960

527 0. 5.0 0.06 300. 0.058 2.0 0.960

528 0. 6.0 0.06 300. 0.058 2.0 0.960

529 0. 6.0 0.06 300. 0.058 2.0 0.960

530 0. 5.0 0.06 300. 0.058 2.0 0.960

531 0. 8.0 0.06 300. 0.058 2.0 0.960

532 0. 2.5 0.50 300. 0.001 2.0 0.995

533 0. 2.5 0.50 300. 0.001 2.0 0.995

541 0. 5.0 0.05 300. 0.063 2.0 0.960

542 0. 5.0 0.05 300. 0.063 2.0 0.960

543 0. 5.0 0.05 300. 0.063 2.0 0.960

544 0. 5.0 0.05 300. 0.063 2.0 0.960

545 0. 5.0 0.06 300. 0.063 2.0 0.960

546 0. 5.0 0.06 300. 0.063 2.0 0.960

547 0. 5.0 0.06 300. 0.063 2.0 0.960

548 0. 6.0 0.06 300. 0.063 2.0 0.960

549 0. 6.0 0.06 300. 0.063 2.0 0.960

550 0. 5.0 0.06 300. 0.063 2.0 0.960

551 0. 8.0 0.06 300. 0.063 2.0 0.960

552 0. 2.5 0.50 300. 0.001 2.0 0.995

553 0. 2.5 0.50 300. 0.001 2.0 0.995

561 0. 5.0 0.05 300. 0.020 2.0 0.960

562 0. 5.0 0.05 300. 0.020 2.0 0.960

563 0. 5.0 0.05 300. 0.020 2.0 0.960

564 0. 5.0 0.05 300. 0.020 2.0 0.960FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 132

Florida Department of Environmental Protection

5 65 0. 5.0 0.06 300. 0.020 2.0 0.960

566 0. 5.0 0.06 300. 0.020 2.0 0.960

567 0. 5.0 0.06 300. 0.020 2.0 0.960

568 0. 6.0 0.06 300. 0.020 2.0 0.960

569 0. 6.0 0.06 300. 0.020 2.0 0.960

570 0. 5.0 0.06 300. 0.020 2.0 0.960

571 0. 8.0 0.06 300. 0.020 2.0 0.960

572 0. 2.5 0.50 300. 0.001 2.0 0.995

573 0. 2.5 0.50 300. 0.001 2.0 0.995

581 0. 5.0 0.05 300. 0.061 2.0 0.960

582 0. 5.0 0.05 300. 0.061 2.0 0.960

583 0. 5.0 0.05 300. 0.061 2.0 0.960

584 0. 5.0 0.05 300. 0.061 2.0 0.960

585 0. 5.0 0.06 300. 0.061 2.0 0.960

586 0. 5.0 0.06 300. 0.061 2.0 0.960

587 0. 5.0 0.06 300. 0.061 2.0 0.960

588 0. 6.0 0.06 300. 0.061 2.0 0.960

589 0. 6.0 0.06 300. 0.061 2.0 0.960

590 0. 5.0 0.06 300. 0.061 2.0 0.960

591 0. 8.0 0.06 300. 0.061 2.0 0.960

592 0. 2.5 0.50 300. 0.001 2.0 0.995

593 0. 2.5 0.50 300. 0.001 2.0 0.995

601 0. 5.0 0.05 300. 0.053 2.0 0.960

602 0. 5.0 0.05 300. 0.053 2.0 0.960

603 0. 5.0 0.05 300. 0.053 2.0 0.960

604 0. 5.0 0.05 300. 0.053 2.0 0.960

605 0. 5.0 0.06 300. 0.053 2.0 0.960

606 0. 5.0 0.06 300. 0.053 2.0 0.960

607 0. 5.0 0.06 300. 0.053 2.0 0.960

608 0. 6.0 0.06 300. 0.053 2.0 0.960

609 0. 6.0 0.06 300. 0.053 2.0 0.960

610 0. 5.0 0.06 300. 0.053 2.0 0.960

611 0. 8.0 0.06 300. 0.053 2.0 0.960

612 0. 2.5 0.50 300. 0.001 2.0 0.995

613 0. 2.5 0.50 300. 0.001 2.0 0.995

621 0. 5.0 0.05 300. 0.033 2.0 0.960

622 0. 5.0 0.05 300. 0.033 2.0 0.960

623 0. 5.0 0.05 300. 0.033 2.0 0. 960

624 0. 5.0 0.05 300. 0.033 2.0 0.960

625 0. 5.0 0.06 300. 0.033 2.0 0.960

626 0. 5.0 0.06 300. 0.033 2.0 0.960

627 0. 5.0 0.06 300. 0.033 2.0 0.960

628 0. 6.0 0.06 300. 0.033 2.0 0.960

629 0. 6.0 0.06 300. 0.033 2.0 0.960

630 0. 5.0 0.06 300. 0.033 2.0 0.960

631 0. 8.0 0.06 300. 0.033 2.0 0.960

632 0. 2.5 0.50 300. 0.001 2.0 0.995

633 0. 2.5 0.50 300. 0.001 2.0 0.995

641 0. 5.0 0.05 300. 0.009 2.0 0.960

642 0. 5.0 0.05 300. 0.009 2.0 0.960

643 0. 5.0 0.05 300. 0.009 2.0 0.960

644 0. 5.0 0.05 300. 0.009 2.0 0.960

645 0. 5.0 0.06 300. 0.009 2.0 0.960

646 0. 5.0 0.06 300. 0.009 2.0 0.960

647 0. 5.0 0.06 300. 0.009 2.0 0.960

648 0. 6.0 0.06 300. 0.009 2.0 0.960

649 0. 6.0 0.06 300. 0.009 2.0 0.960

650 0. 5.0 0.06 300. 0.009 2.0 0.960

651 0. 8.0 0.06 300. 0.009 2.0 0.960

652 0. 2.5 0.50 300. 0.001 2.0 0.995

653 0. 2.5 0.50 300. 0.001 2.0 0.995

661 0. 5.0 0.05 300. 0.015 2.0 0.960FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 133

Florida Department of Environmental Protection

662 0. 5.0 0.05 300. 0.015 2.0 0.960

663 0. 5.0 0.05 300. 0.015 2.0 0.960

664 0. 5.0 0.05 300. 0.015 2.0 0.960

665 0. 5.0 0.06 300. 0.015 2.0 0.960

666 0. 5.0 0.06 300. 0.015 2.0 0.960

667 0. 5.0 0.06 300. 0.015 2.0 0.960

668 0. 6.0 0.06 300. 0.015 2.0 0.960

669 0. 6.0 0.06 300. 0.015 2.0 0.960

670 0. 5.0 0.06 300. 0.015 2.0 0.960

671 0. 8.0 0.06 300. 0.015 2.0 0.960

672 0. 2.5 0.50 300. 0.001 2.0 0.995

673 0. 2.5 0.50 300. 0.001 2.0 0.995

END PWAT -PARM2

PWAT -PARM3

*** < PLS> PETMAX PETMIN INFEXP INFILD DEEPFR BASETP AGWETP

*** x

- x (deg F) (deg F)

101 1 11 40. 35. 2. 2. 0.00 0.03 0.00

112 113 40. 35. 10. 2. 0.00 0.03 0.20

121 131 40. 35. 2. 2. 0.00 0.03 0.00

132 133 40. 35. 10. 2. 0.00 0.03 0.20

141 151 40. 35. 2. 2. 0.00 0.03 0.00

152 153 40. 35. 10. 2. 0.00 0.03 0.20

161 171 40. 35. 2. 2. 0.00 0.03 0.00

172 173 40. 35. 10. 2. 0.00 0.03 0.20

181 191 40. 35. 2. 2. 0.00 0.03 0.00

192 193 40. 35. 10. 2. 0.00 0.03 0.20

201 211 40. 35. 2. 2. 0.00 0.03 0.00

212 213 40. 35. 10. 2. 0.00 0.03 0.20

221 231 40. 35. 2. 2. 0.00 0.03 0.00

232 233 40. 35. 10. 2. 0.00 0.03 0.20

241 251 40. 35. 2. 2. 0.00 0.03 0.00

252 253 40. 35. 10. 2. 0.00 0.03 0.20

261 271 40. 35. 2. 2. 0.00 0.03 0.00

272 273 40. 35. 10. 2. 0.00 0.03 0.20

281 291 40. 35. 2. 2. 0.00 0.03 0.00

292 293 40. 35. 10. 2. 0.00 0.03 0.20

301 311 40. 35. 2. 2. 0.00 0.03 0.00

312 313 40. 35. 10. 2. 0.00 0.03 0.20

***

501 511 40. 35. 2. 2. 0.00 0.03 0.00

512 513 40. 35. 10. 2. 0.00 0.03 0.20

521 531 40. 35. 2. 2. 0.95 0.03 0.00

532 533 40. 35. 10. 2. 0.95 0.03 0.20

541 551 40. 35. 2. 2. 0.00 0.03 0.00

552 553 40. 35. 10. 2. 0.00 0.03 0.20

561 571 40. 35. 2. 2. 0.20 0.03 0.00

572 573 40. 35. 10. 2. 0.20 0.03 0.20

581 591 40. 35. 2. 2. 0.95 0.03 0.00

592 593 40. 35. 10. 2. 0.95 0.03 0.20

601 611 40. 35. 2. 2. 0.50 0.03 0.00

612 613 40. 35. 10. 2. 0.50 0.03 0.20

621 631 40. 35. 2. 2. 0.30 0.03 0.00

632 633 40. 35. 10. 2. 0.30 0.03 0.20

641 651 40. 35. 2. 2. 0.00 0.03 0.00

652 653 40. 35. 10. 2. 0.00 0.03 0.2 0

661 671 40. 35. 2. 2. 0.00 0.03 0.00

672 673 40. 35. 10. 2. 0.00 0.03 0.20

END PWAT -PARM3

PWAT -PARM4

*** <PLS > CEPSC UZSN NSUR INTFW IRC LZETPFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 134

Florida Department of Environmental Protection *** x

- x (in) (in) (1/day)

101 102 0.10 0.5 0.20 1.0 0.7 0.1

103 0.05 0.5 0.20 1.0 0.7 0.1

104 0.05 0.5 0.15 1.0 0.7 0.1

105 106 0.05 0.6 0.25 1.0 0.7 0.1

107 0.10 0.6 0.25 1.0 0.7 0.1

108 109 0.12 0.6 0.25 1.0 0.7 0.1

110 0.10 0.6 0.25 1.0 0.7 0.1

111 0.15 0.7 0.25 1.0 0.7 0.1

112 113 0.05 2.0 0.40 0.0 0.8 0.1

121 122 0.10 0.5 0.20 1.0 0.7 0.1

123 0.05 0.5 0.20 1.0 0.7 0.1

124 0.05 0.5 0.15 1.0 0.7 0.1

125 126 0.05 0.6 0.25 1.0 0.7 0.1

127 0.10 0.6 0.25 1.0 0.7 0.1

128 129 0.12 0.6 0.25 1.0 0.7 0.1

130 0.10 0.6 0.25 1.0 0.7 0.1

131 0.15 0.7 0.25 1.0 0.7 0.1

132 133 0.05 2.0 0.40 0.0 0.8 0.1

141 142 0.10 0.5 0.20 1.0 0.7 0.1

143 0.05 0.5 0.20 1.0 0.7 0.1

144 0.05 0.5 0.15 1.0 0.7 0.1

145 146 0.05 0.6 0.25 1.0 0.7 0.1

147 0.10 0.6 0.25 1.0 0.7 0.1

148 149 0.12 0.6 0.25 1.0 0.7 0.1

150 0.10 0.6 0.25 1.0 0.7 0.1

151 0.15 0.7 0.25 1.0 0.7 0.1

152 153 0.05 2.0 0.40 0.0 0.8 0.1

161 162 0.10 0.5 0.20 1.0 0.7 0.1

163 0.05 0.5 0.20 1.0 0.7 0.1

164 0.05 0.5 0.15 1.0 0.7 0.1

165 166 0.05 0.6 0.25 1.0 0.7 0.1

167 0.10 0.6 0.25 1.0 0.7 0.1

168 169 0.12 0.6 0.25 1.0 0.7 0.1

170 0.10 0.6 0.25 1.0 0.7 0.1

171 0.15 0.7 0.25 1.0 0.7 0.1

172 173 0.05 2.0 0.40 0.0 0.8 0.1

181 182 0.10 0.5 0.20 1.0 0.7 0.1

183 0.05 0.5 0.20 1.0 0 .7 0.1

184 0.05 0.5 0.15 1.0 0.7 0.1

185 186 0.05 0.6 0.25 1.0 0.7 0.1

187 0.10 0.6 0.25 1.0 0.7 0.1

188 189 0.12 0.6 0.25 1.0 0.7 0.1

190 0.10 0.6 0.25 1.0 0.7 0.1

191 0.15 0.7 0.25 1.0 0.7 0.1

192 193 0.05 2.0 0.40 0.0 0.8 0.1

201 202 0.10 0.5 0.20 1.0 0.7 0.1

203 0.05 0.5 0.20 1.0 0.7 0.1

204 0.05 0.5 0.15 1.0 0.7 0.1

205 206 0.05 0.6 0.25 1.0 0.7 0.1

207 0.10 0.6 0.25 1.0 0.7 0.1

208 209 0.12 0.6 0.25 1.0 0.7 0.1

210 0.10 0.6 0.25 1.0 0.7 0 .1

211 0.15 0.7 0.25 1.0 0.7 0.1

212 213 0.05 2.0 0.40 0.0 0.8 0.1

221 222 0.10 0.5 0.20 1.0 0.7 0.1

223 0.05 0.5 0.20 1.0 0.7 0.1

224 0.05 0.5 0.15 1.0 0.7 0.1

225 226 0.05 0.6 0.25 1.0 0.7 0.1

227 0.10 0.6 0.25 1.0 0.7 0.1

228 229 0.12 0.6 0.25 1.0 0.7 0.1

230 0.10 0.6 0.25 1.0 0.7 0.1FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 135

Florida Department of Environmental Protection

231 0.15 0.7 0.25 1.0 0.7 0.1

232 233 0.05 2.0 0.40 0.0 0.8 0.1

241 242 0.10 0.5 0.20 1.0 0.7 0.1

243 0.05 0.5 0.20 1.0 0.7 0.1

244 0.05 0.5 0.15 1.0 0.7 0.1

2 45 246 0.05 0.6 0.25 1.0 0.7 0.1

247 0.10 0.6 0.25 1.0 0.7 0.1

248 249 0.12 0.6 0.25 1.0 0.7 0.1

250 0.10 0.6 0.25 1.0 0.7 0.1

251 0.15 0.7 0.25 1.0 0.7 0.1

252 253 0.05 2.0 0.40 0.0 0.8 0.1

261 262 0.10 0.5 0.20 1.0 0.7 0.1

263 0.05 0.5 0.20 1.0 0.7 0.1

264 0.05 0.5 0.15 1.0 0.7 0.1

265 266 0.05 0.6 0.25 1.0 0.7 0.1

267 0.10 0.6 0.25 1.0 0.7 0.1

268 269 0.12 0.6 0.25 1.0 0.7 0.1

270 0.10 0.6 0.25 1.0 0.7 0.1

271 0.15 0.7 0.25 1.0 0.7 0.1

272 273 0.05 2.0 0.40 0.0 0.8 0.1

281 282 0.10 0.5 0.20 1.0 0.7 0.1

283 0.05 0.5 0.20 1.0 0.7 0.1

284 0.05 0.5 0.15 1 .0 0.7 0.1

285 286 0.05 0.6 0.25 1.0 0.7 0.1

287 0.10 0.6 0.25 1.0 0.7 0.1

288 289 0.12 0.6 0.25 1.0 0.7 0.1

290 0.10 0.6 0.25 1.0 0.7 0.1

291 0.15 0.7 0.25 1.0 0.7 0.1

292 293 0.05 2.0 0.40 0.0 0.8 0.1

301 302 0.10 0.5 0.20 1.0 0.7 0.1

303 0.05 0.5 0.20 1.0 0.7 0.1

304 0.05 0.5 0.15 1.0 0.7 0.1

305 306 0.05 0.6 0.25 1.0 0.7 0.1

307 0.10 0.6 0.25 1.0 0.7 0.1

308 309 0.12 0.6 0.25 1.0 0.7 0.1

310 0.10 0.6 0.25 1.0 0.7 0.1

311 0.15 0.7 0.25 1.0 0 .7 0.1

312 313 0.05 2.0 0.40 0.0 0.8 0.1

***

501 502 0.10 0.5 0.20 1.0 0.7 0.1

503 0.05 0.5 0.20 1.0 0.7 0.1

504 0.05 0.5 0.15 1.0 0.7 0.1

505 506 0.05 0.6 0.25 1.0 0.7 0.1

507 0.10 0.6 0.25 1.0 0.7 0.1

508 509 0.12 0.6 0.25 1.0 0.7 0.1

510 0.10 0.6 0.25 1.0 0.7 0.1

511 0.15 0.7 0.25 1.0 0.7 0.1

512 513 0.05 2.0 0.40 0.0 0.8 0.1

521 522 0.10 0.5 0.20 1.0 0.7 0.1

523 0.05 0.5 0.20 1.0 0.7 0.1

524 0.05 0.5 0.15 1.0 0.7 0.1

525 526 0.05 0.6 0.25 1.0 0.7 0.1

527 0.10 0.6 0.25 1.0 0.7 0.1

528 529 0.12 0.6 0.25 1.0 0.7 0.1

530 0.10 0.6 0.25 1.0 0.7 0.1

531 0.15 0.7 0.25 1.0 0.7 0.1

532 533 0.05 2.0 0.40 0.0 0.8 0.1

541 542 0.10 0.5 0.20 1.0 0.7 0.1

543 0.05 0.5 0.20 1.0 0.7 0.1

544 0.05 0.5 0.15 1.0 0.7 0.1

545 546 0.05 0.6 0.25 1.0 0.7 0.1

547 0.10 0.6 0.25 1.0 0.7 0.1FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 136

Florida Department of Environmental Protection

548 549 0.12 0.6 0.25 1.0 0.7 0.1

550 0.10 0.6 0.25 1.0 0.7 0.1

551 0.15 0.7 0.25 1.0 0.7 0.1

552 553 0.05 2.0 0.40 0.0 0.8 0.1

561 562 0.10 0.5 0.20 1.0 0.7 0.1

563 0.05 0.5 0.20 1.0 0.7 0.1

564 0.05 0.5 0.15 1.0 0.7 0.1

565 566 0.05 0.6 0.25 1.0 0.7 0.1

567 0.10 0.6 0.25 1.0 0.7 0.1

568 569 0.12 0.6 0.25 1.0 0.7 0.1

570 0.10 0.6 0.25 1.0 0.7 0.1

571 0.15 0.7 0.25 1.0 0.7 0.1

572 573 0.05 2.0 0.40 0.0 0.8 0.1

581 582 0.10 0.5 0.20 1.0 0.7 0.1

583 0.05 0.5 0.20 1.0 0.7 0.1

584 0.05 0.5 0.15 1.0 0.7 0.1

585 586 0.05 0.6 0.25 1.0 0.7 0.1

587 0.10 0.6 0.25 1.0 0.7 0.1

588 589 0.12 0.6 0.25 1.0 0.7 0.1

590 0.10 0.6 0.25 1.0 0.7 0.1

591 0.15 0.7 0.25 1.0 0.7 0.1

592 593 0.05 2.0 0.40 0.0 0.8 0.1

601 602 0.10 0.5 0.20 1.0 0.7 0.1

603 0.05 0.5 0.20 1.0 0.7 0.1

604 0.05 0.5 0.15 1.0 0.7 0.1

605 606 0.05 0.6 0.25 1.0 0.7 0.1

607 0.10 0.6 0.25 1.0 0.7 0.1

608 609 0.12 0.6 0.25 1.0 0.7 0.1

610 0.10 0.6 0.25 1.0 0.7 0.1

611 0.15 0.7 0.25 1.0 0.7 0.1

612 613 0.05 2.0 0.40 0.0 0.8 0.1

621 622 0.10 0.5 0.20 1.0 0.7 0.1

623 0.05 0.5 0.20 1.0 0.7 0.1

624 0.05 0.5 0.15 1.0 0.7 0.1

625 626 0.05 0.6 0.25 1.0 0.7 0.1

627 0.10 0.6 0.25 1.0 0.7 0.1

628 629 0.12 0.6 0.25 1.0 0.7 0.1

630 0.10 0.6 0.25 1.0 0.7 0.1

631 0.15 0.7 0.25 1.0 0.7 0.1

632 633 0.05 2.0 0.40 0.0 0.8 0.1

641 642 0.10 0.5 0.20 1.0 0.7 0.1

643 0.05 0.5 0.20 1.0 0.7 0.1

644 0.05 0.5 0.15 1.0 0.7 0.1

645 646 0.05 0.6 0.25 1.0 0.7 0.1

647 0.10 0.6 0.25 1.0 0.7 0.1

648 649 0.12 0.6 0.25 1.0 0.7 0.1

650 0.10 0.6 0.25 1.0 0.7 0.1

651 0.15 0.7 0.25 1.0 0.7 0.1

652 653 0.05 2.0 0.40 0.0 0.8 0.1

661 662 0.10 0.5 0.20 1.0 0.7 0.1

663 0.05 0.5 0.20 1.0 0.7 0.1

664 0.05 0.5 0.15 1.0 0.7 0.1

665 666 0.05 0.6 0.25 1.0 0.7 0.1

667 0.10 0.6 0.25 1.0 0.7 0.1

668 669 0.12 0.6 0.25 1.0 0.7 0.1

670 0.10 0.6 0.25 1.0 0.7 0.1

671 0.15 0.7 0.25 1.0 0.7 0.1

672 673 0.05 2.0 0.40 0.0 0.8 0.1

END PWAT -PARM4

PWAT -STATE1

*** < PLS> PWATER state variables (in)FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 137

Florida Department of Environmental Protection *** x

- x CEPS SURS UZS IFWS LZS AGWS GWVS

101 673 0. 0. 0.25 0.005 3.3 0.8 0.

END PWAT -STATE1

MON

- INTERCEP

*** <PLS > Interception storage capacity at start of each month (in)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 104 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

105 106 0.03 0.03 0.03 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.03 0.03

107 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

108 109 0.05 0.05 0.07 0.08 0.10 0.15 0.15 0.15 0.15 0.10 0.07 0 .05

110 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

111 0.09 0.09 0.09 0.09 0.12 0.15 0.15 0.15 0.15 0.12 0.09 0.09

112 113 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

121 124 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

125 126 0.03 0.03 0.03 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.03 0.03

127 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

128 129 0.05 0.05 0.07 0.08 0.10 0.15 0.15 0.15 0.15 0.10 0.07 0.05

130 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

131 0.09 0.09 0.09 0.09 0.12 0.15 0.15 0.15 0.15 0.12 0.09 0.09

132 133 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

141 144 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

145 146 0.03 0.03 0.03 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.03 0.03

147 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

148 149 0.05 0.05 0.07 0.08 0.10 0.15 0.15 0.15 0.15 0.10 0.07 0.05

150 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

151 0.09 0.09 0.09 0.09 0.12 0.15 0.15 0.15 0.15 0.12 0.09 0.09

152 153 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

161 164 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

165 166 0.03 0.03 0.03 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.03 0.03

167 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

168 169 0.05 0.05 0.07 0.08 0.10 0.15 0.15 0.15 0.15 0.10 0.07 0.05

170 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

171 0.09 0.09 0.09 0.09 0.12 0.15 0.15 0.15 0.15 0.12 0.09 0.09

172 173 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

181 184 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

185 18 6 0.03 0.03 0.03 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.03 0.03

187 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

188 189 0.05 0.05 0.07 0.08 0.10 0.15 0.15 0.15 0.15 0.10 0.07 0.05

190 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

191 0.09 0.09 0.09 0.09 0.12 0.15 0.15 0.15 0.15 0.12 0.09 0.09

192 193 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

201 204 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

205 206 0.03 0.03 0.03 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.03 0.03

207 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

208 209 0.05 0.05 0.07 0.08 0.10 0.15 0.15 0.15 0.15 0.10 0.07 0.05

210 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

211 0.09 0.09 0.09 0.09 0.12 0.15 0.15 0.15 0.15 0.12 0.09 0.09

212 213 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

221 224 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

225 226 0.03 0.03 0.03 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.03 0.03

227 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

228 229 0.05 0.05 0.07 0.08 0.10 0.15 0.15 0.15 0.15 0.10 0.07 0.05

230 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

231 0.09 0.09 0.09 0.09 0.12 0.15 0.15 0.15 0.15 0.12 0.09 0.09

232 233 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

241 244 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

245 246 0.03 0.03 0.03 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.03 0.03

247 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

248 249 0.05 0.05 0.07 0.08 0.10 0.15 0.15 0.15 0.15 0.10 0.07 0.05

250 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

251 0.09 0.09 0.09 0.09 0.12 0.15 0.15 0.15 0.15 0.12 0.09 0.09FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 138

Florida Department of Environmental Protection

252 253 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

261 264 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

265 266 0.03 0.03 0.03 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.03 0.03

267 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

268 269 0.05 0.05 0.07 0.08 0.10 0.15 0.15 0.15 0.15 0.10 0.07 0.05

270 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

271 0.09 0.09 0.09 0.09 0.12 0.15 0.15 0.15 0.15 0.12 0.09 0.09

272 273 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

281 284 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

285 286 0.03 0.03 0.03 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.03 0.03

287 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

288 289 0.05 0.05 0.07 0.08 0.10 0.15 0.15 0.15 0.15 0.10 0.07 0.05

290 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

291 0.09 0.09 0.09 0.09 0.12 0.15 0.15 0.15 0.15 0.12 0.09 0.09

292 293 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

301 304 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

305 306 0.03 0.03 0.03 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.03 0.03

307 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

308 309 0.05 0.05 0.07 0.08 0.10 0.15 0.15 0.15 0.15 0.10 0.07 0.05

310 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

311 0.09 0.09 0.09 0.09 0.12 0.15 0.15 0.15 0.15 0.12 0.09 0.09

312 313 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

501 504 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

505 506 0.03 0.03 0.03 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.03 0.03

507 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

508 509 0.05 0.05 0.07 0.08 0.10 0.15 0.15 0.15 0.15 0.10 0.07 0.05

510 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

511 0.09 0.09 0.09 0.09 0.12 0.15 0.15 0.15 0.15 0.12 0.09 0.09

512 513 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

521 524 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

525 526 0.03 0.03 0.03 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.03 0.03

527 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

528 529 0.05 0.05 0.07 0.08 0.10 0.15 0.15 0.15 0.15 0.10 0.07 0.05

530 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

531 0.09 0.09 0.09 0.09 0.12 0.15 0.15 0.15 0.15 0.12 0.09 0.09

532 533 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

541 544 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

545 546 0.03 0.03 0.03 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.03 0.03

547 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

548 549 0.05 0.05 0.07 0.08 0.10 0.15 0.15 0.15 0.15 0.10 0.07 0.05

550 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

551 0.09 0.09 0.09 0.09 0.12 0.15 0.15 0.15 0.15 0.12 0.09 0.09

552 553 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

561 564 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

565 566 0.03 0.03 0.03 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.03 0.03

567 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

568 569 0.05 0.05 0.07 0.08 0.10 0.15 0.15 0.15 0.15 0.10 0.07 0.05

570 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

571 0.09 0.09 0.09 0.09 0.12 0.15 0.15 0.15 0.15 0.12 0.09 0.09

572 573 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

581 584 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

585 586 0.03 0.03 0.03 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.03 0.03

587 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

588 589 0.05 0.05 0.07 0.08 0.10 0.15 0.15 0.15 0.15 0.10 0.07 0.05

590 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

591 0.09 0.09 0.09 0.09 0.12 0.15 0.15 0.15 0.15 0.12 0.09 0.09

592 593 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

601 604 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

605 606 0.03 0.03 0.03 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.03 0.03

607 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

608 609 0.05 0.05 0.07 0.08 0.10 0.15 0.15 0.15 0.15 0.10 0.07 0.05FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 139

Florida Department of Environmental Protection

610 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

611 0.09 0.09 0.09 0.09 0.12 0.15 0.15 0.15 0.15 0.12 0.09 0.09

612 613 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

621 624 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

625 626 0.03 0.03 0.03 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.03 0.03

627 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

628 629 0.05 0.05 0.07 0.08 0.10 0.15 0.15 0.15 0.15 0.10 0.07 0.05

630 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

631 0.09 0.09 0.09 0.09 0.12 0.15 0.15 0.15 0.15 0.12 0.09 0.09

632 633 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

641 644 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

645 646 0.03 0.03 0.03 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.03 0.03

647 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

648 649 0.05 0.05 0.07 0.08 0.10 0.15 0.15 0.15 0.15 0.10 0.07 0.05

650 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

651 0.09 0.09 0.09 0.09 0.12 0.15 0.15 0.15 0.15 0.12 0.09 0.09

652 653 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

661 664 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

665 666 0.03 0.03 0.03 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.03 0.03

667 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

668 669 0.05 0.05 0.07 0.08 0.10 0.15 0.15 0.15 0.15 0.10 0.07 0.05

670 0.06 0.06 0.06 0.06 0.08 0.10 0.10 0.10 0.10 0.08 0.06 0.06

671 0.09 0.09 0.09 0.09 0.12 0.15 0.15 0.15 0.15 0.12 0.09 0.09

672 673 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

END MON

- INTERCEP

MON -LZETPARM

*** <PLS > Lo wer zone evapotransp parm at start of each month

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 104 0.1 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1

105 106 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0 .2 0.1

107 111 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2

112 113 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9

121 124 0.1 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1

125 126 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1

127 131 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2

132 133 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9

141 144 0.1 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1

145 146 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1

147 151 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2

152 153 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9

161 164 0.1 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1

165 166 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1

167 171 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2

172 173 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9

181 184 0.1 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1

185 186 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1

187 191 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2

192 193 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9

201 204 0.1 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1

205 206 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1

207 211 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2

212 213 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9

221 224 0.1 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1

225 226 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1

227 231 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2

232 233 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9

241 244 0.1 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1

245 246 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1

247 251 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2

252 253 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9

261 264 0.1 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 140

Florida Department of Environmental Protection

265 266 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1

267 271 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2

272 273 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9

281 284 0.1 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1

285 286 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1

287 291 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2

292 293 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9

301 304 0.1 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1

305 306 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1

307 311 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2

312 313 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9

***

501 504 0.1 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1

505 506 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1

507 511 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2

512 513 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9

521 524 0.1 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1

525 526 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1

527 531 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2

532 533 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9

541 544 0.1 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1

545 546 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1

547 551 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2

552 553 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9

561 564 0.1 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1

565 566 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1

567 571 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2

572 573 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9

581 584 0.1 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1

585 586 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1

587 591 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2

592 593 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9

601 604 0.1 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1

605 606 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1

607 611 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2

612 613 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9

621 624 0.1 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1

625 626 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1

627 631 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2

632 633 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9

641 644 0.1 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1

645 646 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1

647 651 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2

652 653 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9

661 664 0.1 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1

665 666 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1

667 671 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2

672 673 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9

END MON -LZETPARM

SED-PARM1

*** <PLS > Se diment parameters 1

*** x

- x CRV VSIV SDOP

101 673 0 0 0

END SED -PARM1

SED-PARM2

*** <PLS > SMPF KRER JRER AFFIX COVER NVSI

*** x

- x (/day) lb/ac

- day

101 103 1. 0.1 2. 0.01 0.9 1.

104 1. 0.1 2. 0.01 0.6 1.

105 106 1. 0.1 2. 0.01 0.3 1.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 141

Florida Department of Environmental Protection

107 109 1. 0.1 2. 0.01 0.7 1.

110 1. 0.1 2. 0.01 0.9 1.

111 1. 0.1 2. 0.01 0.95 1.

112 113 1. 0.1 2. 0.05 0.98 1.

121 123 1. 0.1 2. 0.01 0.9 1.

124 1. 0.1 2. 0.01 0.6 1.

125 126 1. 0.1 2. 0.01 0.3 1.

127 129 1. 0.1 2. 0.01 0.7 1.

130 1. 0.1 2. 0.01 0.9 1.

131 1. 0.1 2. 0.01 0.95 1.

132 133 1. 0.1 2. 0.05 0.98 1.

141 143 1. 0.1 2. 0.01 0.9 1.

144 1. 0.1 2. 0.01 0.6 1.

145 146 1. 0.1 2. 0.01 0.3 1.

147 149 1. 0.1 2. 0.01 0.7 1.

150 1. 0.1 2. 0.01 0.9 1.

151 1. 0.1 2. 0.01 0.95 1.

152 153 1. 0.1 2. 0.05 0.98 1.

161 163 1. 0.1 2. 0.01 0.9 1.

164 1. 0.1 2. 0.01 0.6 1.

165 166 1. 0.1 2. 0.01 0.3 1.

167 169 1. 0.1 2. 0.01 0.7 1.

170 1. 0.1 2. 0.01 0.9 1.

171 1. 0.1 2. 0.01 0.95 1.

172 173 1. 0.1 2. 0.05 0.98 1.

181 183 1. 0.1 2. 0.01 0.9 1.

184 1. 0.1 2. 0.01 0.6 1.

185 186 1. 0.1 2. 0.01 0.3 1.

187 189 1. 0.1 2. 0.01 0.7 1.

190 1. 0.1 2. 0.01 0.9 1.

191 1. 0.1 2. 0.01 0.95 1.

192 193 1. 0.1 2. 0.05 0.98 1.

201 203 1. 0.1 2. 0.01 0.9 1.

204 1. 0.1 2. 0.01 0.6 1.

205 206 1. 0.1 2. 0.01 0.3 1.

207 209 1. 0.1 2. 0.01 0.7 1.

210 1. 0.1 2. 0.01 0.9 1.

211 1. 0.1 2. 0.01 0.95 1.

212 213 1. 0.1 2. 0.05 0.98 1.

221 223 1. 0.1 2. 0.01 0.9 1.

224 1. 0.1 2. 0.01 0.6 1.

225 226 1. 0.1 2. 0.01 0.3 1.

227 229 1. 0.1 2. 0.01 0.7 1.

230 1. 0.1 2. 0.01 0.9 1.

2 31 1. 0.1 2. 0.01 0.95 1.

232 233 1. 0.1 2. 0.05 0.98 1.

241 243 1. 0.1 2. 0.01 0.9 1.

244 1. 0.1 2. 0.01 0.6 1.

245 246 1. 0.1 2. 0.01 0.3 1.

247 249 1. 0.1 2. 0.01 0.7 1.

250 1. 0.1 2. 0.01 0.9 1.

251 1. 0.1 2. 0.01 0.95 1.

252 253 1. 0.1 2. 0.05 0.98 1.

261 263 1. 0.1 2. 0.01 0.9 1.

264 1. 0.1 2. 0.01 0.6 1.

265 266 1. 0.1 2. 0.01 0.3 1.

267 269 1. 0.1 2. 0.01 0.7 1.

270 1. 0.1 2. 0.01 0.9 1.

271 1. 0.1 2. 0.01 0.95 1.

272 273 1. 0.1 2. 0.05 0.98 1.

281 283 1. 0.1 2. 0.01 0.9 1.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 142

Florida Department of Environmental Protection

284 1. 0.1 2. 0.01 0.6 1.

285 286 1. 0.1 2. 0.01 0.3 1.

287 289 1. 0.1 2. 0.01 0.7 1.

290 1. 0.1 2. 0.01 0.9 1.

291 1. 0.1 2. 0.01 0.95 1.

292 293 1. 0.1 2. 0.05 0.98 1.

301 303 1. 0.1 2. 0.01 0.9 1.

304 1. 0.1 2. 0.01 0.6 1.

305 306 1. 0.1 2. 0.01 0.3 1.

307 309 1. 0.1 2. 0.01 0.7 1.

310 1. 0.1 2. 0.01 0.9 1.

311 1. 0.1 2. 0.01 0.95 1.

312 313 1. 0.1 2. 0.05 0.98 1.

***

501 503 1. 0.1 2. 0.01 0.9 1.

504 1. 0.1 2. 0.01 0.6 1.

505 506 1. 0.1 2. 0.01 0.3 1.

507 509 1. 0.1 2. 0.01 0.7 1.

510 1. 0.1 2. 0.01 0.9 1.

511 1. 0.1 2. 0.01 0.95 1.

512 513 1. 0.1 2. 0.05 0.98 1.

521 523 1. 0.1 2. 0.01 0.9 1.

524 1. 0.1 2. 0.01 0.6 1.

525 526 1. 0.1 2. 0.01 0.3 1.

527 529 1. 0.1 2. 0.01 0.7 1.

530 1. 0.1 2. 0.01 0.9 1.

531 1. 0.1 2. 0.01 0.95 1.

532 533 1. 0.1 2. 0.05 0.98 1.

541 543 1. 0.1 2. 0.01 0.9 1.

544 1. 0.1 2. 0.01 0.6 1.

545 546 1. 0.1 2. 0.01 0.3 1.

547 549 1. 0.1 2. 0.01 0.7 1.

550 1. 0.1 2. 0.01 0.9 1.

551 1. 0.1 2. 0.01 0.95 1.

552 553 1. 0.1 2. 0.05 0.98 1.

561 563 1. 0.1 2. 0.01 0.9 1.

564 1. 0.1 2. 0.01 0.6 1.

565 566 1. 0.1 2. 0.01 0.3 1.

56 7 569 1. 0.1 2. 0.01 0.7 1.

570 1. 0.1 2. 0.01 0.9 1.

571 1. 0.1 2. 0.01 0.95 1.

572 573 1. 0.1 2. 0.05 0.98 1.

581 583 1. 0.1 2. 0.01 0.9 1.

584 1. 0.1 2. 0.01 0.6 1.

585 586 1. 0.1 2. 0.01 0.3 1.

587 589 1. 0.1 2. 0.01 0.7 1.

590 1. 0.1 2. 0.01 0.9 1.

591 1. 0.1 2. 0.01 0.95 1.

592 593 1. 0.1 2. 0.05 0.98 1.

601 603 1. 0.1 2. 0.01 0.9 1.

604 1. 0.1 2. 0.01 0.6 1.

605 606 1. 0.1 2. 0.01 0.3 1.

607 609 1. 0.1 2. 0.01 0.7 1.

610 1. 0.1 2. 0.01 0.9 1.

611 1. 0.1 2. 0.01 0.95 1.

612 613 1. 0.1 2. 0.05 0.98 1.

621 623 1. 0.1 2. 0.01 0.9 1.

624 1. 0.1 2. 0.01 0.6 1.

625 626 1. 0.1 2. 0.01 0.3 1.

627 629 1. 0.1 2. 0.01 0.7 1.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 143

Florida Department of Environmental Protection

630 1. 0.1 2. 0.01 0.9 1.

631 1. 0.1 2. 0.01 0.95 1.

632 633 1. 0.1 2. 0.05 0.98 1.

641 643 1. 0.1 2. 0.01 0.9 1.

644 1. 0.1 2. 0.01 0.6 1.

645 646 1. 0.1 2. 0.01 0.3 1.

647 649 1. 0.1 2. 0.01 0.7 1.

650 1. 0.1 2. 0.01 0.9 1.

651 1. 0.1 2. 0.01 0.95 1.

652 653 1. 0.1 2. 0.05 0.98 1.

661 663 1. 0.1 2. 0.01 0.9 1.

664 1. 0.1 2. 0.01 0.6 1.

665 666 1. 0.1 2. 0.01 0.3 1.

667 669 1. 0.1 2. 0.01 0.7 1.

670 1. 0.1 2. 0.01 0.9 1.

671 1. 0.1 2. 0.01 0.95 1.

672 673 1. 0.1 2. 0.05 0.98 1.

END SED -PARM2

SED-PARM3

*** <PLS > Sediment parameter 3

*** x

- x KSER JSER KGER JGER

101 0.01 2. 0. 2.

102 0.02 2. 0. 2.

103 0.18 2. 0. 2.

104 0.20 2. 0. 2.

105 0.06 2. 0. 2.

106 0.02 2. 0. 2.

107 0.05 2. 0. 2.

108 0.10 2. 0. 2.

109 0.06 2. 0. 2.

110 0.01 2. 0. 2.

111 0.01 2. 0. 2.

112 113 0.01 2. 0. 2.

121 0.01 2. 0. 2.

122 0.02 2. 0. 2.

123 0.18 2. 0. 2.

124 0.20 2. 0. 2.

125 0.06 2. 0. 2.

126 0.02 2. 0. 2.

127 0.05 2. 0. 2.

128 0.10 2. 0. 2.

129 0.06 2. 0. 2.

130 0.01 2. 0. 2.

131 0.01 2. 0. 2.

132 133 0.01 2. 0. 2.

141 0.01 2. 0. 2.

142 0.02 2. 0. 2.

143 0.18 2. 0. 2.

144 0.20 2. 0. 2.

145 0.06 2. 0. 2.

146 0.02 2. 0. 2.

147 0.05 2. 0. 2.

148 0.10 2. 0. 2.

149 0.06 2. 0. 2.

150 0.01 2. 0. 2.

151 0.01 2. 0. 2.

152 153 0.01 2. 0. 2.

161 0.01 2. 0. 2.

162 0.02 2. 0. 2.

163 0.18 2. 0. 2.

164 0.20 2. 0. 2.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 144

Florida Department of Environmental Protection

165 0.06 2. 0. 2.

166 0.02 2. 0. 2.

167 0.05 2. 0. 2.

168 0.10 2. 0. 2.

169 0.06 2. 0. 2.

170 0.01 2. 0. 2.

171 0.01 2. 0. 2.

172 173 0.01 2. 0. 2.

181 0.01 2. 0. 2

. 182 0.02 2. 0. 2.

183 0.18 2. 0. 2.

184 0.20 2. 0. 2.

185 0.06 2. 0. 2.

186 0.02 2. 0. 2.

187 0.05 2. 0. 2.

188 0.10 2. 0. 2.

189 0.06 2. 0. 2.

190 0.01 2. 0. 2.

191 0.01 2. 0. 2.

192 193 0.01 2. 0. 2.

201 0.01 2. 0. 2.

202 0.02 2. 0. 2.

203 0.18 2. 0. 2.

204 0.20 2. 0. 2.

205 0.06 2. 0. 2.

206 0.02 2. 0. 2.

207 0.05 2. 0. 2.

208 0.10 2. 0. 2.

209 0.06 2. 0. 2.

210 0.01 2. 0. 2.

211 0.01 2. 0. 2.

212 213 0.01 2. 0. 2.

221 0.01 2. 0. 2.

222 0.02 2. 0. 2.

223 0.18 2. 0. 2.

224 0.20 2. 0. 2.

225 0.06 2. 0. 2.

226 0.02 2. 0. 2.

227 0.05 2. 0. 2.

2 28 0.10 2. 0. 2.

229 0.06 2. 0. 2.

230 0.01 2. 0. 2.

231 0.01 2. 0. 2.

232 233 0.01 2. 0. 2.

24 1 0.01 2. 0. 2.

242 0.02 2. 0. 2.

243 0.18 2. 0. 2.

244 0.20 2. 0. 2.

245 0.06 2. 0. 2.

246 0.02 2. 0. 2.

247 0.05 2. 0. 2.

248 0.10 2. 0. 2.

249 0.06 2. 0. 2.

250 0.01 2. 0. 2.

251 0.01 2. 0. 2.

252 253 0.01 2. 0. 2.

261 0.01 2. 0. 2.

262 0.02 2. 0. 2.

263 0.18 2. 0. 2.

264 0.20 2. 0. 2.

265 0.06 2. 0. 2.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 145

Florida Department of Environmental Protection

266 0.02 2. 0. 2.

267 0.05 2. 0. 2.

268 0.10 2. 0. 2.

269 0.06 2. 0. 2.

270 0.01 2. 0. 2.

271 0.01 2. 0. 2.

272 273 0.01 2. 0. 2.

281 0.01 2. 0. 2.

282 0.02 2. 0. 2.

283 0.18 2. 0. 2.

284 0.20 2. 0. 2.

285 0.06 2. 0. 2.

286 0.02 2. 0. 2.

287 0.05 2. 0. 2.

288 0.10 2. 0. 2.

289 0.06 2. 0. 2.

290 0.01 2. 0. 2.

291 0.01 2. 0. 2.

292 293 0.01 2. 0. 2.

301 0.01 2. 0. 2.

302 0.02 2. 0. 2.

303 0.18 2. 0. 2.

304 0.20 2. 0. 2.

305 0.06 2. 0. 2.

306 0.02 2. 0. 2.

307 0.05 2. 0. 2.

308 0.10 2. 0. 2.

309 0.06 2. 0. 2.

310 0.01 2. 0. 2.

311 0.01 2. 0. 2.

312 313 0.01 2. 0. 2.

***

501 0.01 2. 0. 2.

502 0.02 2. 0. 2.

503 0.18 2. 0. 2.

504 0.20 2. 0. 2.

505 0.06 2. 0. 2.

506 0.02 2. 0. 2.

507 0.05 2. 0. 2.

508 0.10 2. 0. 2.

509 0.06 2. 0. 2.

510 0.01 2. 0. 2.

511 0.01 2. 0. 2.

512 513 0.01 2. 0. 2.

521 0.01 2. 0. 2.

522 0.02 2. 0. 2.

523 0.18 2. 0. 2.

524 0.20 2. 0. 2.

525 0.06 2. 0. 2.

526 0.02 2. 0. 2.

527 0.05 2. 0. 2.

528 0.10 2. 0. 2.

529 0.06 2. 0. 2.

530 0.01 2. 0. 2.

531 0.01 2. 0. 2.

532 533 0.01 2. 0. 2.

541 0.01 2. 0. 2.

542 0.02 2. 0. 2.

543 0.18 2. 0. 2.

544 0.20 2. 0. 2.

545 0.06 2. 0. 2.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 146

Florida Department of Environmental Protection

546 0.02 2. 0. 2.

547 0.05 2. 0. 2.

548 0.10 2. 0. 2.

549 0.06 2. 0. 2.

550 0.01 2. 0. 2.

551 0.01 2. 0. 2.

552 553 0.01 2. 0. 2.

561 0.01 2. 0. 2.

562 0.02 2. 0. 2.

563 0.18 2. 0. 2.

564 0.20 2. 0. 2.

565 0.06 2. 0. 2.

566 0.02 2. 0. 2.

567 0.05 2. 0. 2.

568 0.10 2. 0. 2.

569 0.06 2. 0. 2.

570 0.01 2. 0. 2.

571 0.01 2. 0. 2.

572 573 0.01 2. 0. 2.

581 0.01 2. 0. 2.

582 0.02 2. 0. 2.

583 0.18 2. 0. 2.

584 0.20 2. 0. 2.

585 0.06 2. 0. 2.

586 0.02 2. 0. 2.

587 0.05 2. 0. 2.

588 0.10 2. 0. 2.

589 0.06 2. 0. 2.

590 0.01 2. 0. 2.

591 0.01 2. 0. 2.

592 593 0.01 2. 0. 2.

601 0.01 2. 0. 2.

602 0.02 2. 0. 2.

603 0.18 2. 0. 2.

604 0.20 2. 0. 2.

605 0.06 2. 0. 2.

606 0.02 2. 0. 2.

607 0.05 2. 0. 2.

608 0.10 2. 0. 2.

609 0.06 2. 0. 2.

610 0.01 2. 0. 2.

611 0.01 2. 0. 2.

612 613 0.01 2. 0. 2.

621 0.01 2. 0. 2.

622 0.02 2. 0. 2.

623 0.18 2. 0. 2.

624 0.20 2. 0. 2.

625 0.06 2. 0. 2.

626 0.02 2. 0. 2.

627 0.05 2. 0. 2.

628 0.10 2. 0. 2.

629 0.06 2. 0. 2.

630 0.01 2. 0. 2.

631 0.01 2. 0. 2.

632 633 0.01 2. 0. 2.

641 0.01 2. 0. 2.

642 0.02 2. 0. 2.

643 0.18 2. 0. 2.

644 0.20 2. 0. 2.

645 0.06 2. 0. 2.

646 0.02 2. 0. 2.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 147

Florida Department of Environmental Protection

647 0.05 2. 0. 2.

648 0.10 2. 0. 2.

649 0.06 2. 0. 2.

650 0.01 2. 0. 2.

651 0.01 2. 0. 2.

652 653 0.01 2. 0. 2.

661 0.01 2. 0. 2.

662 0.02 2. 0. 2.

663 0.18 2. 0. 2.

664 0.20 2. 0. 2.

665 0.06 2. 0. 2.

666 0.02 2. 0. 2.

667 0.05 2. 0. 2.

668 0.10 2. 0. 2.

669 0.06 2. 0. 2.

670 0.01 2. 0. 2.

671 0.01 2. 0. 2.

672 673 0.01 2 . 0. 2.

END SED -PARM3

SED- STOR

*** <PLS > Detached sediment storage (tons/acre)

*** x

- x DETS

101 673 0.2

END SED

- STOR

PSTEMP-PARM1

*** <PLS > Flags for section PSTEMP

*** x

- x SLTV ULTV LGTV TSOP

101 673 1 1 1 1

END PSTEMP -PARM1

PSTEMP-PARM2

*** <PLS > ASLT BSLT ULTP1 ULTP2 LGTP1 LGTP2

*** x

- x (deg F) (deg F) (deg F) (deg F)

101 673 45. 0.15 45. 0.15 50. 0.

END PSTEMP -PARM2

MON -ASLT

*** <PLS > Value of ASLT at start of each month (deg F)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 673 49.0 49.0 50.0 59.0 60.0 63.0 67.0 67.0 65.0 59.0 53.0 46.0

END MON -ASLT

MON -BSLT

*** <PLS > Value of BSLT at start of each month (deg F/F)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 673 .2 .2 .2 .2 .2 .2 .2 .2 .2 .2 .2 .2

END MON -BSLT

MON

- ULTP1

*** <PLS > Value of ULTP1 at start of each month in deg F (TSOPFG=1)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 673 45.0 45.0 46.0 55.0 56.0 60.0 63.0 63.0 61.0 56.0 49.0 43.0

END MON

- ULTP1

MON

- ULTP2

*** <PLS > Value of ULTP2 at start of each month in Deg F/F (TSOPFG=1)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 673 .2 .2 .2 .2 .2 .2 .2 .2 .2 .2 .2 .2

END MON

- ULTP2FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 14 8

Florida Department of Environmental Protection

MON

- LGTP1

*** <PLS > Value of LGTP1 at start of each month in Deg F (TSOPFG=1)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 673 53.0 53.0 54.0 62.0 64.0 71.0 73.0 75.0 70.0 64.0 59.0 51.0

END MON

- LGTP1

PSTEMP- TEMPS

*** <PLS > Initial temperatures (deg F)

*** x

- x AIRTC SLTMP ULTMP LGTMP

101 673 56.0 56.0 56.0 68.0

END PSTEMP

- TEMPS

PWT -PARM1

*** <PLS > Flags for section PWTGAS

*** x

- x IDV ICV GDV GVC

101 673 1 0 1 0

END PWT -PARM1

PWT -PARM2

*** Second group of PWTGAS parms

*** <PLS > ELEV IDOXP ICO2P ADOXP ACO2P

*** x

- x (ft) (mg/l) (mg C/l) (mg/l) (mg C/l)

101 673 50. 8.0 0. 6.0 0.

END PWT -PARM2

MON

- IFWDOX

*** <PLS > V alue at start of each month for interflow DO concentration (mg/l)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 673 6.0 6.0 5.5 5.0 5.0 4.5 4.5 4.5 5.0 5.5 6.0 6.0

END MON

- IFWDOX

MON

- GRNDDOX

*** <PLS >Value at start of each month for groundwater DO concentration (mg/l)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 673 5.5 5.5 5.0 4.5 4.5 4.0 4.0 4.0 4.5 5.0 5.5 5.5

END MON

- GRNDDOX

PWT -GASES

*** Initial DO and CO2 concentrations

*** <PLS > SODOX SOCO2 IODOX IOCO2 AODOX AOCO2

*** x

- x (mg/l) (mg C/l) (mg/l) (mg C/l) (mg/l) (mg C/l)

101 673 10.0 0.0 8.0 0.0 6.0 0.0

END P WT -GASES

NQUALS

*** <PLS >

*** x

- xNQUAL

101 673 4

END NQUALS

QUAL -PROPS

*** <PLS > Identifiers and Flags

*** x

- x QUALID QTID QSD VPFW VPFS QSO VQO QIFW VIQC QAGW VAQC

101 673NH3 LBS 0 0 0 1 1 1 3 1 3

END QUAL -PROPS

QUAL

- INPUT

*** Storage on surface and nonseasonal parameters

*** SQO POTFW POTFS ACQOP SQOLIM WSQOP IOQC AOQC

*** <PLS > qty/ac qty/ton qty/ton qty/ qty/ac in/hr qty/ft3 qty/ft 3

*** x

- x ac.day

101 0.01 0. 0. 0.010 0.025 0.6 0. 0.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 149

Florida Department of Environmental Protection

102 0.01 0. 0. 0.015 0.038 0.6 0. 0.

103 0.01 0. 0. 0.020 0.050 0.6 0. 0.

104 0.01 0. 0. 0.020 0.050 0.6 0. 0.

105 0.01 0. 0. 0.007 0.020 0.6 0. 0.

106 0.01 0. 0. 0.005 0.015 0.6 0. 0.

107 0.01 0. 0. 0.010 0.030 0.6 0. 0.

108 0.01 0. 0. 0.020 0.060 0.6 0. 0.

109 0.01 0. 0. 0.015 0.045 0.6 0. 0.

110 0.01 0. 0. 0.012 0.035 0.6 0. 0.

111 0.01 0. 0. 0.006 0.015 0.6 0. 0.

112 0.01 0. 0. 0.001 0.005 0.3 0. 0.

113 0.01 0. 0. 0.001 0.005 0.3 0. 0.

12 1 0.01 0. 0. 0.010 0.025 0.6 0. 0.

122 0.01 0. 0. 0.015 0.038 0.6 0. 0.

123 0.01 0. 0. 0.020 0.050 0.6 0. 0.

124 0.01 0. 0. 0.020 0.050 0.6 0. 0.

125 0.01 0. 0. 0.007 0.020 0.6 0. 0.

126 0.01 0. 0. 0.005 0.015 0.6 0. 0.

127 0.01 0. 0. 0.010 0.030 0.6 0. 0.

128 0.01 0. 0. 0.020 0.060 0.6 0. 0.

129 0.01 0. 0. 0.015 0.045 0.6 0. 0.

130 0.01 0. 0. 0.012 0.035 0.6 0. 0.

131 0.01 0. 0. 0.006 0.015 0.6 0. 0.

132 0.01 0. 0. 0.001 0.005 0.3 0. 0.

133 0.01 0. 0. 0.001 0.005 0.3 0. 0.

141 0.01 0. 0. 0.010 0.025 0.6 0. 0.

142 0.01 0. 0. 0.015 0.038 0.6 0. 0.

143 0.01 0. 0. 0.020 0.050 0.6 0. 0.

144 0.01 0. 0. 0.020 0.050 0.6 0. 0.

145 0.01 0. 0. 0.007 0.020 0.6 0. 0.

146 0.01 0. 0. 0.005 0.015 0.6 0. 0.

147 0.01 0. 0. 0.010 0.030 0.6 0. 0.

148 0.01 0. 0. 0.020 0.060 0.6 0. 0.

149 0.01 0. 0. 0.015 0.045 0.6 0. 0.

150 0.01 0. 0. 0.012 0.035 0.6 0. 0.

151 0.01 0. 0. 0.006 0.015 0.6 0. 0.

152 0.01 0. 0. 0.001 0.005 0.3 0. 0.

153 0.01 0. 0. 0.001 0.005 0.3 0. 0.

161 0.01 0. 0. 0.010 0.025 0.6 0. 0.

162 0.01 0. 0. 0.015 0.038 0.6 0. 0.

163 0.01 0. 0. 0.020 0.050 0.6 0. 0.

164 0.01 0. 0. 0.020 0.050 0.6 0. 0.

165 0.01 0. 0. 0.007 0.020 0.6 0. 0.

166 0.01 0. 0. 0.005 0.015 0.6 0. 0.

167 0.01 0. 0. 0.010 0.030 0.6 0. 0.

168 0.01 0. 0. 0.020 0.060 0.6 0. 0.

169 0.01 0. 0. 0.015 0.045 0.6 0. 0.

170 0.01 0. 0. 0.012 0.035 0.6 0. 0.

171 0.01 0. 0. 0.006 0.015 0.6 0. 0.

172 0.01 0. 0. 0.001 0.005 0.3 0. 0.

173 0.01 0. 0. 0.001 0.005 0.3 0. 0.

181 0.01 0. 0. 0.010 0.025 0.6 0. 0.

182 0.01 0. 0. 0.015 0.038 0.6 0. 0.

183 0.01 0. 0. 0.020 0.050 0.6 0. 0.

184 0.01 0. 0. 0.020 0.050 0.6 0. 0.

185 0.01 0. 0. 0.007 0.020 0.6 0. 0.

186 0.01 0. 0. 0.005 0.015 0.6 0. 0.

187 0.01 0. 0. 0.010 0.030 0.6 0. 0.

188 0.01 0. 0. 0.020 0.060 0.6 0. 0.

189 0.01 0. 0. 0.015 0.045 0.6 0. 0.

190 0.01 0. 0. 0.012 0.035 0.6 0. 0.

191 0.01 0. 0. 0.006 0.015 0.6 0. 0.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 150

Florida Department of Environmental Protection

192 0.01 0. 0. 0.001 0.005 0.3 0. 0.

193 0.01 0. 0. 0.001 0.005 0.3 0. 0.

201 0.01 0. 0. 0.010 0.025 0.6 0. 0.

202 0.01 0. 0. 0.015 0.038 0.6 0. 0.

203 0.01 0. 0. 0.020 0.050 0.6 0. 0.

204 0.01 0. 0. 0.020 0.050 0.6 0. 0.

205 0.01 0. 0. 0.007 0.020 0.6 0. 0.

206 0.01 0. 0. 0.005 0.015 0.6 0. 0.

207 0.01 0. 0. 0.010 0.030 0.6 0. 0.

208 0.01 0. 0. 0.020 0.060 0.6 0. 0.

209 0.01 0. 0. 0.015 0.045 0.6 0. 0.

210 0.01 0. 0. 0.012 0.035 0.6 0. 0.

211 0.01 0. 0. 0.006 0.015 0.6 0. 0.

212 0.01 0. 0. 0.001 0.005 0.3 0. 0.

213 0.01 0. 0. 0.001 0.005 0.3 0. 0.

221 0.01 0. 0. 0.010 0.025 0.6 0. 0.

222 0.01 0. 0. 0.015 0.038 0.6 0. 0.

223 0.01 0. 0. 0.020 0.050 0.6 0. 0.

224 0.01 0. 0. 0.020 0.050 0.6 0. 0.

225 0.01 0. 0. 0.007 0.020 0.6 0. 0.

226 0.01 0. 0. 0.005 0.015 0.6 0. 0.

227 0.01 0. 0. 0.010 0.030 0.6 0. 0.

228 0.01 0. 0. 0.020 0.060 0.6 0. 0.

229 0.01 0. 0. 0.015 0.045 0.6 0. 0.

230 0.01 0. 0. 0.012 0.035 0.6 0. 0.

231 0.01 0. 0. 0.006 0.015 0.6 0. 0.

232 0.01 0. 0. 0.001 0.005 0.3 0. 0.

233 0.01 0. 0. 0.001 0.005 0.3 0. 0.

241 0.01 0. 0. 0.010 0.025 0.6 0. 0.

242 0.01 0. 0. 0.015 0.038 0.6 0. 0.

243 0.01 0. 0. 0.020 0.050 0.6 0. 0.

244 0.01 0. 0. 0.020 0.050 0.6 0. 0.

245 0.01 0. 0. 0.007 0.020 0.6 0. 0.

246 0.01 0. 0. 0.005 0.015 0.6 0. 0.

247 0.01 0. 0. 0.010 0.030 0.6 0. 0.

248 0.01 0. 0. 0.020 0.060 0.6 0. 0.

249 0.01 0. 0. 0.015 0.045 0.6 0. 0.

250 0.01 0. 0. 0.012 0.035 0.6 0. 0.

251 0.01 0. 0. 0.006 0.015 0.6 0. 0.

252 0.01 0. 0. 0.001 0.005 0.3 0. 0.

253 0.01 0. 0. 0.001 0.005 0.3 0. 0.

261 0.01 0. 0. 0.010 0.025 0.6 0. 0.

262 0.01 0. 0. 0.015 0.038 0.6 0. 0.

263 0.01 0. 0. 0.020 0.050 0.6 0. 0.

264 0.01 0. 0. 0.020 0.050 0.6 0. 0.

265 0.01 0. 0. 0.007 0.020 0.6 0. 0.

266 0.01 0. 0. 0.005 0.015 0.6 0. 0.

267 0.01 0. 0. 0.010 0.030 0.6 0. 0.

268 0.01 0. 0. 0.020 0.060 0.6 0. 0.

269 0.01 0. 0. 0.015 0.045 0.6 0. 0.

270 0.01 0. 0. 0.012 0.035 0.6 0. 0.

271 0.01 0. 0. 0.006 0.015 0.6 0. 0.

272 0.01 0. 0. 0.001 0.005 0.3 0. 0.

273 0.01 0. 0. 0.001 0.005 0.3 0. 0.

281 0.01 0. 0. 0.010 0.025 0.6 0. 0.

282 0.01 0. 0. 0.015 0.038 0.6 0. 0.

283 0.01 0. 0. 0.020 0.050 0.6 0. 0.

284 0.01 0. 0. 0.020 0.050 0.6 0. 0.

285 0.01 0. 0. 0.007 0.020 0.6 0. 0.

286 0.01 0. 0. 0.005 0.015 0.6 0. 0.

287 0.01 0. 0. 0.010 0.030 0.6 0. 0.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 151

Florida Department of Environmental Protection

288 0.01 0. 0. 0.020 0.060 0.6 0. 0.

289 0.01 0. 0. 0.015 0.045 0.6 0. 0.

290 0.01 0. 0. 0.012 0.035 0.6 0. 0.

291 0.01 0. 0. 0.006 0.015 0.6 0. 0.

292 0.01 0. 0. 0.001 0.005 0.3 0. 0.

293 0.01 0. 0. 0.001 0.005 0.3 0. 0.

301 0.01 0. 0. 0.010 0.025 0.6 0. 0.

302 0.01 0. 0. 0.015 0.038 0.6 0. 0.

303 0.01 0. 0. 0.020 0.050 0.6 0. 0.

304 0.01 0. 0. 0.020 0.050 0.6 0. 0.

305 0.01 0. 0. 0.007 0.020 0.6 0. 0.

306 0.01 0. 0. 0.005 0.015 0.6 0. 0.

307 0.01 0. 0. 0.010 0.030 0.6 0. 0.

308 0.01 0. 0. 0.020 0.060 0.6 0. 0.

309 0.01 0. 0. 0.015 0.045 0.6 0. 0.

310 0.01 0. 0. 0.012 0.035 0.6 0. 0.

311 0.01 0. 0. 0.006 0.015 0.6 0. 0.

312 0.01 0. 0. 0.001 0.005 0.3 0. 0.

313 0.01 0. 0. 0.001 0.005 0.3 0. 0.

***

501 0.01 0. 0. 0.010 0.025 0.6 0. 0.

502 0.01 0. 0. 0.015 0.038 0.6 0. 0.

503 0.01 0. 0. 0.020 0.050 0.6 0. 0.

504 0.01 0. 0. 0.020 0.050 0.6 0. 0.

505 0.01 0. 0. 0.007 0.020 0.6 0. 0.

506 0.01 0. 0. 0.005 0.015 0.6 0. 0.

507 0.01 0. 0. 0.010 0.030 0.6 0. 0.

508 0.01 0. 0. 0.020 0.060 0.6 0. 0.

509 0.01 0. 0. 0.015 0.045 0.6 0. 0.

510 0.01 0. 0. 0.012 0.035 0.6 0. 0.

511 0.01 0. 0. 0.006 0.015 0.6 0. 0.

512 0.01 0. 0. 0.001 0.005 0.3 0. 0.

513 0.01 0. 0. 0.001 0.005 0.3 0. 0.

521 0.01 0. 0. 0.010 0.025 0.6 0. 0.

522 0.01 0. 0. 0.015 0.038 0.6 0. 0.

523 0.01 0. 0. 0.020 0.050 0.6 0. 0.

524 0.01 0. 0. 0.020 0.050 0 .6 0. 0.

525 0.01 0. 0. 0.007 0.020 0.6 0. 0.

526 0.01 0. 0. 0.005 0.015 0.6 0. 0.

527 0.01 0. 0. 0.010 0.030 0.6 0. 0.

528 0.01 0. 0. 0.020 0.060 0.6 0. 0.

529 0.01 0. 0. 0.015 0.045 0.6 0. 0.

530 0.01 0. 0. 0.012 0.035 0.6 0. 0.

531 0.01 0. 0. 0.006 0.015 0.6 0. 0.

532 0.01 0. 0. 0.001 0.005 0.3 0. 0.

533 0.01 0. 0. 0.001 0.005 0.3 0. 0.

541 0.01 0. 0. 0.010 0.025 0.6 0. 0.

542 0.01 0. 0. 0.015 0.038 0.6 0. 0.

543 0.01 0. 0. 0.020 0.050 0.6 0. 0.

544 0.01 0. 0. 0.020 0.050 0.6 0. 0.

545 0.01 0. 0. 0.007 0.020 0.6 0. 0.

546 0.01 0. 0. 0.005 0.015 0.6 0. 0.

547 0.01 0. 0. 0.010 0.030 0.6 0. 0.

548 0.01 0. 0. 0.020 0.060 0.6 0. 0.

549 0.01 0. 0. 0.015 0.045 0.6 0. 0.

550 0.01 0. 0. 0.012 0.035 0.6 0. 0.

551 0.01 0. 0. 0.006 0.015 0.6 0. 0.

552 0.01 0. 0. 0.001 0.005 0.3 0. 0.

553 0.01 0. 0. 0.001 0.005 0.3 0. 0.

561 0.01 0. 0. 0.010 0.025 0.6 0. 0.

562 0.01 0. 0. 0.015 0.038 0.6 0. 0.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 152

Florida Department of Environmental Protection

563 0.01 0. 0. 0.020 0.050 0.6 0. 0.

564 0.01 0. 0. 0.020 0.050 0.6 0. 0.

565 0.01 0. 0. 0.007 0.020 0.6 0. 0.

56 6 0.01 0. 0. 0.005 0.015 0.6 0. 0.

567 0.01 0. 0. 0.010 0.030 0.6 0. 0.

568 0.01 0. 0. 0.020 0.060 0.6 0. 0.

569 0.01 0. 0. 0.015 0.045 0.6 0. 0.

570 0.01 0. 0. 0.012 0.035 0.6 0. 0.

571 0.01 0. 0. 0.006 0.015 0.6 0. 0.

572 0.01 0. 0. 0.001 0.005 0.3 0. 0.

573 0.01 0. 0. 0.001 0.005 0.3 0. 0.

581 0.01 0. 0. 0.010 0.025 0.6 0. 0.

582 0.01 0. 0. 0.015 0.038 0.6 0. 0.

583 0.01 0. 0. 0.020 0.050 0.6 0. 0.

584 0.01 0. 0. 0.020 0.050 0.6 0. 0.

585 0.01 0. 0. 0.007 0.020 0.6 0. 0.

586 0.01 0. 0. 0.005 0.015 0.6 0. 0.

587 0.01 0. 0. 0.010 0.030 0.6 0. 0.

588 0.01 0. 0. 0.020 0.060 0.6 0. 0.

589 0.01 0. 0. 0.015 0.045 0.6 0. 0.

590 0.01 0. 0. 0.012 0.035 0.6 0. 0.

591 0.01 0. 0. 0.006 0.015 0.6 0. 0.

592 0.01 0. 0. 0.001 0.005 0.3 0. 0.

593 0.01 0. 0. 0.001 0.005 0.3 0. 0.

601 0.01 0. 0. 0.010 0.025 0.6 0. 0.

602 0.01 0. 0. 0.015 0.038 0.6 0. 0.

603 0.01 0. 0. 0.020 0.050 0.6 0. 0.

604 0.01 0. 0. 0.020 0.050 0.6 0. 0.

605 0.01 0. 0. 0.007 0.020 0.6 0. 0.

606 0.01 0. 0. 0.005 0.015 0.6 0. 0.

607 0.01 0. 0. 0.010 0.030 0.6 0. 0.

608 0.01 0. 0. 0.020 0.060 0.6 0. 0.

609 0.01 0. 0. 0.015 0.045 0.6 0. 0.

610 0.01 0. 0. 0.012 0.035 0.6 0. 0.

611 0.01 0. 0. 0.006 0.015 0.6 0. 0.

612 0.01 0. 0. 0.001 0.005 0.3 0. 0.

613 0.01 0. 0. 0.001 0.005 0.3 0. 0.

621 0.01 0. 0. 0.010 0.025 0.6 0. 0.

622 0.01 0. 0. 0.015 0.038 0.6 0. 0.

623 0.01 0. 0. 0.020 0.050 0.6 0. 0.

624 0.01 0. 0. 0.020 0.050 0.6 0. 0.

625 0.01 0. 0. 0.007 0.020 0.6 0. 0.

626 0.01 0. 0. 0.005 0.015 0.6 0. 0.

627 0.01 0. 0. 0.010 0.030 0.6 0. 0.

628 0.01 0. 0. 0.020 0.060 0.6 0. 0.

629 0.01 0. 0. 0.015 0.045 0.6 0. 0.

630 0.01 0. 0. 0.012 0.035 0.6 0. 0.

631 0.01 0. 0. 0.006 0.015 0.6 0. 0.

632 0.01 0. 0. 0.001 0.005 0.3 0. 0.

633 0.01 0. 0. 0.001 0.005 0.3 0. 0.

641 0.01 0. 0. 0.010 0.025 0.6 0. 0.

642 0.01 0. 0. 0.015 0.038 0.6 0. 0.

643 0.01 0. 0. 0.020 0.050 0.6 0. 0.

644 0.01 0. 0. 0.020 0.050 0.6 0. 0.

645 0.01 0. 0. 0.007 0.020 0.6 0. 0.

646 0.01 0. 0. 0.005 0.015 0.6 0. 0.

647 0.01 0. 0. 0.010 0.030 0.6 0. 0.

648 0.01 0. 0. 0.020 0.060 0.6 0. 0.

649 0.01 0. 0. 0.015 0.045 0.6 0. 0.

650 0.01 0. 0. 0.012 0.035 0.6 0. 0.

651 0.01 0. 0. 0.006 0.015 0.6 0. 0.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 153

Florida Department of Environmental Protection

652 0.01 0. 0. 0.001 0.005 0.3 0. 0.

653 0.01 0. 0. 0.001 0.005 0.3 0. 0.

661 0.01 0. 0. 0.010 0.025 0.6 0. 0.

662 0.01 0. 0. 0.015 0.038 0.6 0. 0.

663 0.01 0. 0. 0.020 0.050 0.6 0. 0.

664 0.01 0. 0. 0.020 0.050 0.6 0. 0.

665 0.01 0. 0. 0.007 0.020 0.6 0. 0.

666 0.01 0. 0. 0.005 0.015 0.6 0. 0.

667 0.01 0. 0. 0.010 0.030 0.6 0. 0.

668 0.01 0. 0. 0.020 0.060 0.6 0. 0.

669 0.01 0. 0. 0.015 0.045 0.6 0. 0.

670 0.01 0. 0. 0.012 0.035 0.6 0. 0.

671 0.01 0. 0. 0.006 0.015 0.6 0. 0.

672 0.01 0. 0. 0.001 0.005 0.3 0. 0.

673 0.01 0. 0. 0.001 0.005 0.3 0. 0.

END QUAL

- INPUT

MON

- ACCUM

*** <PLS > Value at start of each month for accum rate of QUALOF (lb/ac.day)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

102 0.0080.008 0.010.0150.0150.0150.0150.0150.015 0.010.0080.008

103 104 0.01 0.010.015 0.02 0.02 0.02 0.02 0.02 0.020.015 0.01 0.01

105 0.0020.0020.00 30.0040.0040.0040.0040.0040.0040.0030.0020.002

106 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

107 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

108 0.0150.0150.020 0.03 0.03 0.03 0.03 0.03 0.030.0200.0150. 015

109 0.0120.0120.0120.0150.0150.0150.0150.0150.0150.0120.0120.012

110 1110.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

112 1130.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

***

121 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

122 0.0080.008 0.010.0150.0150.0150.0150.0150.015 0.010.0080.008

123 124 0.01 0.010.015 0.02 0.02 0.02 0.02 0.02 0.020.015 0.01 0.01

125 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

126 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

127 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

128 0.0150.0150.020 0.03 0.03 0.03 0.03 0.03 0.030.0200.0150.015

129 0.0120.0120.0120.0150.0150.0150.0150.015 0.0150.0120.0120.012

130 1310.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

132 1330.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

***

141 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

142 0.0080.008 0.010.0150.0150.0150.0150.0150.015 0.010.0080.008

143 144 0.01 0.010.015 0.02 0.02 0.02 0.02 0.02 0.020.015 0.01 0.01

145 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

146 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030 .0020.002

147 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

148 0.0150.0150.020 0.03 0.03 0.03 0.03 0.03 0.030.0200.0150.015

149 0.0120.0120.0120.0150.0150.0150.0150.0150.0150.0120.0120.012

150 1510.0030.0030.0040.0060.0 060.0060.0060.0060.0060.0040.0030.003

152 1530.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

161 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

162 0.0080.008 0.010.0150.0150.0150.0150.0150.015 0.010.0080.008

163 164 0.01 0.010.015 0.02 0.02 0.02 0.02 0.02 0.020.015 0.01 0.01

165 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

166 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

167 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

168 0.0150.0150.020 0.03 0.03 0.03 0.03 0.03 0.030.0200.0150.015

169 0.0120.0120.0120.0150.0150.0150.0150.0150.0150.0120.0120.012

170 1710.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

172 1730.0030.003 0.0040.0060.0060.0060.0060.0060.0060.0040.0030.003FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 154

Florida Department of Environmental Protection

181 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

182 0.0080.008 0.010.0150.0150.0150.0150.0150.015 0.010.0080.008

183 184 0.01 0.010.015 0.02 0.02 0.02 0.02 0.02 0.020.015 0. 01 0.01

185 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

186 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

187 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

188 0.0150.0150.020 0.03 0.03 0.03 0.03 0.03 0.030.0200.0150.015

189 0.0120.0120.0120.0150.0150.0150.0150.0150.0150.0120.0120.012

190 1910.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

192 1930.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

201 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

202 0.0080.008 0.010.0150.0150.0150.0150.0150.015 0.010.0080.008

203 204 0.01 0.010.015 0.02 0.02 0.02 0.02 0.02 0.020.015 0.01 0.01

205 0.0020.0020.0030.0040.0040.0040.0040.00 40.0040.0030.0020.002

206 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

207 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

208 0.0150.0150.020 0.03 0.03 0.03 0.03 0.03 0.030.0200.0150.015

209 0.0120.0120 .0120.0150.0150.0150.0150.0150.0150.0120.0120.012

210 2110.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

212 2130.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

221 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.00 60.006

222 0.0080.008 0.010.0150.0150.0150.0150.0150.015 0.010.0080.008

223 224 0.01 0.010.015 0.02 0.02 0.02 0.02 0.02 0.020.015 0.01 0.01

225 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

226 0.0020.0020.0030.0040.0040 .0040.0040.0040.0040.0030.0020.002

227 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

228 0.0150.0150.020 0.03 0.03 0.03 0.03 0.03 0.030.0200.0150.015

229 0.0120.0120.0120.0150.0150.0150.0150.0150.0150.0120.0120.012

230 2 310.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

232 2330.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

241 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

242 0.0080.008 0.010.0150.0150.0150.0150.0150.015 0.010.0080.008

243 244 0.01 0.010.015 0.02 0.02 0.02 0.02 0.02 0.020.015 0.01 0.01

245 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

246 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

247 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

248 0.0150.0150.020 0.03 0.03 0.03 0.03 0.03 0.030.0200.0150.015

249 0.0120.0120.0120.0150.0150.0150.0150.0150.0150.0120.0120.012

250 2510.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030 .003

252 2530.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

261 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

262 0.0080.008 0.010.0150.0150.0150.0150.0150.015 0.010.0080.008

263 264 0.01 0.010.015 0.02 0.02 0.02 0.02 0.02 0.020.015 0.01 0.01

265 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

266 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

267 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

268 0.0150.0150.020 0.03 0.03 0.03 0.03 0.03 0.030.0200.0150.015

269 0.0120.0120.0120.0150.0150.0150.0150.0150.0150.0120.0120.012

270 2710.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

272 2730.0030.0030.0040.0060.0060.0060.0060.0060.0 060.0040.0030.003

281 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

282 0.0080.008 0.010.0150.0150.0150.0150.0150.015 0.010.0080.008

283 284 0.01 0.010.015 0.02 0.02 0.02 0.02 0.02 0.020.015 0.01 0.01

285 0.0020.0020.003 0.0040.0040.0040.0040.0040.0040.0030.0020.002

286 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

287 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

288 0.0150.0150.020 0.03 0.03 0.03 0.03 0.03 0.030.0200.0150.0 15

289 0.0120.0120.0120.0150.0150.0150.0150.0150.0150.0120.0120.012

290 2910.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

292 2930.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 155

Florida Department of Environmental Protection

301 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

302 0.0080.008 0.010.0150.0150.0150.0150.0150.015 0.010.0080.008

303 304 0.01 0.010.015 0.02 0.02 0.02 0.02 0.02 0.020.015 0.01 0.01

305 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

306 0 .0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

307 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

308 0.0150.0150.020 0.03 0.03 0.03 0.03 0.03 0.030.0200.0150.015

309 0.0120.0120.0120.0150.0150.0150.0150.0150.01 50.0120.0120.012

310 3110.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

312 3130.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

***

501 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

502 0.0080.008 0.010.0150.0150.0150.0150.0150.015 0.010.0080.008

503 504 0.01 0.010.015 0.02 0.02 0.02 0.02 0.02 0.020.015 0.01 0.01

505 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

506 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.002 0.002

507 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

508 0.0150.0150.020 0.03 0.03 0.03 0.03 0.03 0.030.0200.0150.015

509 0.0120.0120.0120.0150.0150.0150.0150.0150.0150.0120.0120.012

510 5110.0030.0030.0040.0060.0060. 0060.0060.0060.0060.0040.0030.003

512 5130.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

521 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

522 0.0080.008 0.010.0150.0150.0150.0150.0150.015 0.010.0080.008

523 52 4 0.01 0.010.015 0.02 0.02 0.02 0.02 0.02 0.020.015 0.01 0.01

525 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

526 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

527 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0 .010.0080.0060.006

528 0.0150.0150.020 0.03 0.03 0.03 0.03 0.03 0.030.0200.0150.015

529 0.0120.0120.0120.0150.0150.0150.0150.0150.0150.0120.0120.012

530 5310.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

532 5330.0030.0030.00 40.0060.0060.0060.0060.0060.0060.0040.0030.003

541 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

542 0.0080.008 0.010.0150.0150.0150.0150.0150.015 0.010.0080.008

543 544 0.01 0.010.015 0.02 0.02 0.02 0.02 0.02 0.020.015 0.01 0 .01

545 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

546 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

547 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

548 0.0150.0150.020 0.03 0.03 0.03 0.03 0.03 0.030.0200.0150.015

549 0.0120.0120.0120.0150.0150.0150.0150.0150.0150.0120.0120.012

550 5510.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

552 5530.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

561 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

562 0.0080.008 0.010.0150.0150.0150.0150.0150.015 0.010.0080.008

563 564 0.01 0.010.015 0.02 0.02 0.02 0.02 0.02 0.020.015 0.01 0.01

565 0.0020.0020.0030.0040.0040.0040.0040.0040.00 40.0030.0020.002

566 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

567 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

568 0.0150.0150.020 0.03 0.03 0.03 0.03 0.03 0.030.0200.0150.015

569 0.0120.0120.0120 .0150.0150.0150.0150.0150.0150.0120.0120.012

570 5710.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

572 5730.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

581 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.00 6

582 0.0080.008 0.010.0150.0150.0150.0150.0150.015 0.010.0080.008

583 584 0.01 0.010.015 0.02 0.02 0.02 0.02 0.02 0.020.015 0.01 0.01

585 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

586 0.0020.0020.0030.0040.0040.0040 .0040.0040.0040.0030.0020.002

587 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

588 0.0150.0150.020 0.03 0.03 0.03 0.03 0.03 0.030.0200.0150.015

589 0.0120.0120.0120.0150.0150.0150.0150.0150.0150.0120.0120.012

590 5910.0 030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

592 5930.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 156

Florida Department of Environmental Protection

601 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010 .0080.0060.006

602 0.0080.008 0.010.0150.0150.0150.0150.0150.015 0.010.0080.008

603 604 0.01 0.010.015 0.02 0.02 0.02 0.02 0.02 0.020.015 0.01 0.01

605 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

606 0.0020.0020.0030.0 040.0040.0040.0040.0040.0040.0030.0020.002

607 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

608 0.0150.0150.020 0.03 0.03 0.03 0.03 0.03 0.030.0200.0150.015

609 0.0120.0120.0120.0150.0150.0150.0150.0150.0150.0120.0120.012

610 6110.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

612 6130.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

621 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

622 0.0080.008 0.010.0150.0150.0150.0150.0150.015 0.010.0080.008

623 624 0.01 0.010.015 0.02 0.02 0.02 0.02 0.02 0.020.015 0.01 0.01

625 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

626 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

627 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

628 0.0150.0150.020 0.03 0.03 0.03 0.03 0.03 0.030.0200.0150.015

629 0.0120.0120.0120.0150.0150.0150.0150.0150.0150.0120.0120.012

630 6310.0030.0030.0040.0060.0060.0060.0060.0060.0060.0 040.0030.003

632 6330.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

641 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

642 0.0080.008 0.010.0150.0150.0150.0150.0150.015 0.010.0080.008

643 644 0.01 0.010.015 0.02 0.02 0.02 0.02 0.02 0.020.015 0.01 0.01

645 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

646 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

647 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

648 0.0150.0150.020 0.03 0.03 0.03 0.03 0.03 0.030.0200.0150.015

649 0.0120.0120.0120.0150.0150.0150.0150.0150.0150.0120.0120.012

650 6510.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

652 6530.0030.0030.0040.0060.0060.0060.006 0.0060.0060.0040.0030.003

661 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

662 0.0080.008 0.010.0150.0150.0150.0150.0150.015 0.010.0080.008

663 664 0.01 0.010.015 0.02 0.02 0.02 0.02 0.02 0.020.015 0.01 0.01

665 0.0020. 0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

666 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

667 0.0060.0060.008 0.01 0.01 0.01 0.01 0.01 0.010.0080.0060.006

668 0.0150.0150.020 0.03 0.03 0.03 0.03 0.03 0.030.020 0.0150.015

669 0.0120.0120.0120.0150.0150.0150.0150.0150.0150.0120.0120.012

670 6710.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

672 6730.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

END MON

- ACCUM

MON

- SQOLIM

** * <PLS > Value at start of month for limiting storage of QUALOF (lb/ac)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 0.0150.015 0.020.0250.0250.0250.0250.0250.025 0.020.0150.015

102 0.02 0.020.0250.0380.0380.0380.0380.0380.0380.025 0.02 0.02

103 1040.0250.0250.038 0.05 0.05 0.05 0.05 0.05 0.050.0380.0250.025

105 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

106 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

107 0.0 120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012

108 0.03 0.030.040 0.06 0.06 0.06 0.06 0.06 0.060.040 0.03 0.03

109 0.0240.0240.024 0.03 0.03 0.03 0.03 0.03 0.030.0240.0240.024

110 1110.0060.0060.0080.0120.0120.0120.0120.0120.0120 .0080.0060.006

112 1130.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

***

121 0.0150.015 0.020.0250.0250.0250.0250.0250.025 0.020.0150.015

122 0.02 0.020.0250.0380.0380.0380.0380.0380.0380.025 0.02 0.02

123 1240.0250.0250.03 8 0.05 0.05 0.05 0.05 0.05 0.050.0380.0250.025

125 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

126 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

127 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120. 012FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 157

Florida Department of Environmental Protection

128 0.03 0.030.040 0.06 0.06 0.06 0.06 0.06 0.060.040 0.03 0.03

129 0.0240.0240.024 0.03 0.03 0.03 0.03 0.03 0.030.0240.0240.024

130 1310.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

132 1330.0060.0060.0080.0120.0120.01 20.0120.0120.0120.0080.0060.006

***

141 0.0150.015 0.020.0250.0250.0250.0250.0250.025 0.020.0150.015

142 0.02 0.020.0250.0380.0380.0380.0380.0380.0380.025 0.02 0.02

143 1440.0250.0250.038 0.05 0.05 0.05 0.05 0.05 0.050.0380.0250.025

145 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

146 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

147 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012

148 0.03 0.030.040 0.06 0.06 0.06 0.06 0.06 0.060.040 0.03 0.03

149 0.0240.0240.024 0.03 0.03 0.03 0.03 0.03 0.030.0240.0240.024

150 1510.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

152 1530.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

161 0.0150.015 0.020.0250.0250.0250.0250.0250.025 0.020.0150.015

162 0.02 0.020.0250.0380.0380.0380.0380.0380.0380.025 0.02 0.02

163 1640.0250.0250.038 0.05 0.05 0.05 0.05 0.05 0.050.0380.0250.025

165 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.004 0.004

166 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

167 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012

168 0.03 0.030.040 0.06 0.06 0.06 0.06 0.06 0.060.040 0.03 0.03

169 0.0240.0240.024 0.03 0.03 0.03 0.03 0.03 0.030.0240.0240.024

170 1710.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

172 1730.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

181 0.0150.015 0.020.0250.0250.0250.0250.0250.025 0.020.0150.015

182 0.02 0.020.0250.0380.0380.0380.0380.0380.0380.025 0.02 0.02

183 1840.0250.0250.038 0.05 0.05 0.05 0.05 0.05 0.050.0380.0250.025

185 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

186 0.0040.0040.0060.0080.0080.0080.0080.0080. 0080.0060.0040.004

187 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012

188 0.03 0.030.040 0.06 0.06 0.06 0.06 0.06 0.060.040 0.03 0.03

189 0.0240.0240.024 0.03 0.03 0.03 0.03 0.03 0.030.0240.0240.024

190 1910.0060.0060.00 80.0120.0120.0120.0120.0120.0120.0080.0060.006

192 1930.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

201 0.0150.015 0.020.0250.0250.0250.0250.0250.025 0.020.0150.015

202 0.02 0.020.0250.0380.0380.0380.0380.0380.0380.025 0.02 0.02

203 2040.0250.0250.038 0.05 0.05 0.05 0.05 0.05 0.050.0380.0250.025

205 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

206 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

207 0.0120.0120.0160.0 200.0200.0200.0200.0200.0200.0160.0120.012

208 0.03 0.030.040 0.06 0.06 0.06 0.06 0.06 0.060.040 0.03 0.03

209 0.0240.0240.024 0.03 0.03 0.03 0.03 0.03 0.030.0240.0240.024

210 2110.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

212 2130.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

221 0.0150.015 0.020.0250.0250.0250.0250.0250.025 0.020.0150.015

222 0.02 0.020.0250.0380.0380.0380.0380.0380.0380.025 0.02 0.02

223 2240.0250.0250.038 0.05 0.05 0.05 0.05 0.05 0.050.0380.0250.025

225 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

226 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

227 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012

228 0.03 0.030.040 0.06 0.06 0.06 0.06 0.06 0.060.040 0.03 0.03

229 0.0240.0240.024 0.03 0.03 0.03 0.03 0.03 0.030.0240.0240.024

230 2310.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

232 2330.0060.0060.0080.0120.0120.0120.0120.0120.0120.0 080.0060.006

241 0.0150.015 0.020.0250.0250.0250.0250.0250.025 0.020.0150.015

242 0.02 0.020.0250.0380.0380.0380.0380.0380.0380.025 0.02 0.02

243 2440.0250.0250.038 0.05 0.05 0.05 0.05 0.05 0.050.0380.0250.025

245 0.0040.0040.0060.008 0.0080.0080.0080.0080.0080.0060.0040.004

246 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

247 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 158

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248 0.03 0.030.040 0.06 0.06 0.06 0.06 0.06 0.060.040 0.03 0.03

249 0.0240.0240.024 0.03 0.03 0.03 0.03 0.03 0.030.0240.0240.024

250 2510.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

252 2530.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

261 0.0150.015 0.020.0250.0250.0250.0250.0250.025 0.020.0150.015

262 0.02 0.020.0250.0380.0380.0380.0380.0380.0380.025 0.02 0.02

263 2640.0250.0250.038 0.05 0.05 0.05 0.05 0.05 0.050.0380.0250.025

265 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

266 0.0040. 0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

267 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012

268 0.03 0.030.040 0.06 0.06 0.06 0.06 0.06 0.060.040 0.03 0.03

269 0.0240.0240.024 0.03 0.03 0.03 0.03 0.03 0.030.024 0.0240.024

270 2710.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

272 2730.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

281 0.0150.015 0.020.0250.0250.0250.0250.0250.025 0.020.0150.015

282 0.02 0.020.0250.0380.0380.0380.0380.0380.0380.025 0.02 0.02

283 2840.0250.0250.038 0.05 0.05 0.05 0.05 0.05 0.050.0380.0250.025

285 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

286 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

28 7 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012

288 0.03 0.030.040 0.06 0.06 0.06 0.06 0.06 0.060.040 0.03 0.03

289 0.0240.0240.024 0.03 0.03 0.03 0.03 0.03 0.030.0240.0240.024

290 2910.0060.0060.0080.0120.0120.0120.0120. 0120.0120.0080.0060.006

292 2930.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

301 0.0150.015 0.020.0250.0250.0250.0250.0250.025 0.020.0150.015

302 0.02 0.020.0250.0380.0380.0380.0380.0380.0380.025 0.02 0.02

303 3 040.0250.0250.038 0.05 0.05 0.05 0.05 0.05 0.050.0380.0250.025

305 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

306 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

307 0.0120.0120.0160.0200.0200.0200.0200.0200 .0200.0160.0120.012

308 0.03 0.030.040 0.06 0.06 0.06 0.06 0.06 0.060.040 0.03 0.03

309 0.0240.0240.024 0.03 0.03 0.03 0.03 0.03 0.030.0240.0240.024

310 3110.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

312 3130.0060.0060.0 080.0120.0120.0120.0120.0120.0120.0080.0060.006

***

501 0.0150.015 0.020.0250.0250.0250.0250.0250.025 0.020.0150.015

502 0.02 0.020.0250.0380.0380.0380.0380.0380.0380.025 0.02 0.02

503 5040.0250.0250.038 0.05 0.05 0.05 0.05 0.05 0.050.0380. 0250.025

505 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

506 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

507 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012

508 0.03 0.030.040 0.06 0.06 0.06 0.06 0.06 0.060.040 0.03 0.03

509 0.0240.0240.024 0.03 0.03 0.03 0.03 0.03 0.030.0240.0240.024

510 5110.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

512 5130.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

521 0.0150.015 0.020.0250.0250.0250.0250.0250.025 0.020.0150.015

522 0.02 0.020.0250.0380.0380.0380.0380.0380.0380.025 0.02 0.02

523 5240.0250.0250.038 0.05 0.05 0.05 0.05 0.05 0.050.0380.0250.025

525 0.0040.0040.0060.0080.0080.0080.0080.00 80.0080.0060.0040.004

526 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

527 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012

528 0.03 0.030.040 0.06 0.06 0.06 0.06 0.06 0.060.040 0.03 0.03

529 0.0240.0240.024 0.03 0.03 0.03 0.03 0.03 0.030.0240.0240.024

530 5310.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

532 5330.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

541 0.0150.015 0.020.0250.0250.0250.0250.0250.025 0.020.01 50.015

542 0.02 0.020.0250.0380.0380.0380.0380.0380.0380.025 0.02 0.02

543 5440.0250.0250.038 0.05 0.05 0.05 0.05 0.05 0.050.0380.0250.025

545 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

546 0.0040.0040.0060.0080.0080 .0080.0080.0080.0080.0060.0040.004

547 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 159

Florida Department of Environmental Protection

548 0.03 0.030.040 0.06 0.06 0.06 0.06 0.06 0.060.040 0.03 0.03

549 0.0240.0240.024 0.03 0.03 0.03 0.03 0.03 0.030.0240.0240.024

550 5 510.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

552 5530.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

561 0.0150.015 0.020.0250.0250.0250.0250.0250.025 0.020.0150.015

562 0.02 0.020.0250.0380.0380.0380.0380.0380.0380.025 0.02 0.02

563 5640.0250.0250.038 0.05 0.05 0.05 0.05 0.05 0.050.0380.0250.025

565 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

566 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

567 0.0120.0120.0 160.0200.0200.0200.0200.0200.0200.0160.0120.012

568 0.03 0.030.040 0.06 0.06 0.06 0.06 0.06 0.060.040 0.03 0.03

569 0.0240.0240.024 0.03 0.03 0.03 0.03 0.03 0.030.0240.0240.024

570 5710.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060 .006

572 5730.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

581 0.0150.015 0.020.0250.0250.0250.0250.0250.025 0.020.0150.015

582 0.02 0.020.0250.0380.0380.0380.0380.0380.0380.025 0.02 0.02

583 5840.0250.0250.038 0.05 0.05 0.05 0.05 0.05 0.050.0380.0250.025

585 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

586 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

587 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012

588 0.03 0.030.040 0.06 0.06 0.06 0.06 0.06 0.060.040 0.03 0.03

589 0.0240.0240.024 0.03 0.03 0.03 0.03 0.03 0.030.0240.0240.024

590 5910.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

592 5930.0060.0060.0080.0120.0120.0120.0120.0120.0 120.0080.0060.006

601 0.0150.015 0.020.0250.0250.0250.0250.0250.025 0.020.0150.015

602 0.02 0.020.0250.0380.0380.0380.0380.0380.0380.025 0.02 0.02

603 6040.0250.0250.038 0.05 0.05 0.05 0.05 0.05 0.050.0380.0250.025

605 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

606 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

607 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.0 12

608 0.03 0.030.040 0.06 0.06 0.06 0.06 0.06 0.060.040 0.03 0.03

609 0.0240.0240.024 0.03 0.03 0.03 0.03 0.03 0.030.0240.0240.024

610 6110.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

612 6130.0060.0060.0080.0120.0120.012 0.0120.0120.0120.0080.0060.006

621 0.0150.015 0.020.0250.0250.0250.0250.0250.025 0.020.0150.015

622 0.02 0.020.0250.0380.0380.0380.0380.0380.0380.025 0.02 0.02

623 6240.0250.0250.038 0.05 0.05 0.05 0.05 0.05 0.050.0380.0250.025

625 0. 0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

626 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

627 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012

628 0.03 0.030.040 0.06 0.06 0.06 0.06 0.06 0.060.040 0.03 0.03

629 0.0240.0240.024 0.03 0.03 0.03 0.03 0.03 0.030.0240.0240.024

630 6310.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

632 6330.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

641 0.0150.015 0.020.0250.0250.0250.0250.0250.025 0.020.0150.015

642 0.02 0.020.0250.0380.0380.0380.0380.0380.0380.025 0.02 0.02

643 6440.0250.0250.038 0.05 0.05 0.05 0.05 0.05 0.050.0380.0250.025

645 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

646 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

647 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012

648 0.03 0.030.040 0.06 0.06 0.06 0.06 0.06 0.060.040 0.03 0.03

649 0.0240.0240.024 0.03 0.03 0.03 0.03 0.03 0.030.0240.0240.024

650 6510.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

652 6530.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

661 0.0150.015 0.020.0250.0250.0250.0250.0250.025 0.020.0150.015

662 0.02 0.020.0250.0380.0380.0380.0380.0380.0380.025 0.02 0.02

663 6640.0250.0250.038 0.05 0.05 0.05 0.05 0.05 0.050.0380.0250.025

665 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

666 0.0040.0040.0060.0080.0080.0080.0080.0080.0080. 0060.0040.004

667 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012

668 0.03 0.030.040 0.06 0.06 0.06 0.06 0.06 0.060.040 0.03 0.03FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 160

Florida Department of Environmental Protection

669 0.0240.0240.024 0.03 0.03 0.03 0.03 0.03 0.030.0240.0240.024

670 6710.0060.0060.0080.01 20.0120.0120.0120.0120.0120.0080.0060.006

672 6730.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

END MON

- SQOLIM

MON

- IFLW

- CONC

*** <PLS > Conc of QUAL in interflow outflow for each month (qty/ft3)

*** x

- x JAN FEB MAR APR MAY J UN JUL AUG SEP OCT NOV DEC

101 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

102 104 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

105 106 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

107 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

108 109 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

110 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

111 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

112 113 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

121 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

122 124 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

125 126 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

127 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

128 129 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

130 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

131 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

132 133 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

141 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

142 144 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

145 146 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

147 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

148 149 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

150 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

151 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

152 153 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

161 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.0 7 0.07 0.07 0.07 0.07

162 164 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

165 166 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

167 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

168 169 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

170 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

171 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

172 173 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

181 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

182 184 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

185 186 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

187 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

188 189 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

190 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

191 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

19 2 193 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

201 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

202 204 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

205 206 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

207 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

208 209 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

210 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

211 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

212 213 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

221 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

222 224 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.0 9 0.09 0.09

225 226 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

227 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

228 229 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 161

Florida Department of Environmental Protection

230 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

231 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

232 233 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

241 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

242 244 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

245 246 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

247 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

248 249 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

250 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

251 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

252 253 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

261 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

262 264 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

265 266 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

267 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

268 269 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

270 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

271 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

272 273 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

281 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

282 284 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

285 286 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

287 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

288 289 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

290 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

291 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

292 293 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

301 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

302 304 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

305 306 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

307 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

308 309 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

310 .01 .01 .01 .01 .01 .01 .01 .01 .0 1 .01 .01 .01

311 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

312 313 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

***

501 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

502 504 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

505 506 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

507 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

508 509 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

510 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

511 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

512 513 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

521 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

522 524 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

525 526 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

527 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

528 529 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

530 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

531 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

532 533 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

541 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

542 544 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

545 546 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

547 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

548 549 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

550 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

551 .01 .01 .01 .01 .01 .01 .01 .01 .01 .0 1 .01 .01

552 553 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

561 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 162

Florida Department of Environmental Protection

562 564 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

565 566 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

567 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

568 569 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

570 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

571 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

572 573 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

581 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

582 584 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

585 586 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

587 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

588 589 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

590 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

591 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

592 593 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

601 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

602 604 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

605 606 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

607 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

608 609 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

610 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

611 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

612 613 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .0 1

621 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

622 624 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

625 626 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

627 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

628 629 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

630 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

631 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

632 633 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

641 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

642 644 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

645 646 .01 .01 .01 .01 .01 .01 .01 .01 .0 1 .01 .01 .01

647 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

648 649 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

650 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

651 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

652 653 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

661 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

662 664 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0 .09

665 666 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

667 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

668 669 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

670 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

671 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

672 673 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

END MON

- IFLW

- CONC

MON

- GRND

- CONC

*** <PLS > Value at start of month for conc of QUAL in groundwater (qty/ft3)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

102 104 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

105 1 06 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

107 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

108 109 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

110 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

111 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

112 113 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

121 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 163

Florida Department of Environmental Protection

122 124 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

125 126 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

127 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

128 129 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

130 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

131 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

132 133 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

141 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

142 144 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

145 146 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

147 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

148 149 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

150 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

151 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

152 153 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

161 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

162 164 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

165 166 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

167 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

168 169 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

170 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

171 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

172 173 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

181 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

182 184 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

185 186 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

187 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

188 189 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

190 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

191 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

192 193 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

201 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

202 204 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

205 206 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

207 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

208 209 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

210 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

211 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

212 213 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

221 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

222 224 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

225 226 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

227 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

228 229 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

230 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

231 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

232 233 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

241 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

242 244 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

245 246 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

247 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

248 249 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

250 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

251 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

252 253 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

261 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

262 264 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

265 266 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

267 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

268 269 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

270 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 164

Florida Department of Environmental Protection

271 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

272 273 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

281 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

282 284 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0. 09

285 286 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

287 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

288 289 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

290 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

291 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

292 293 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

301 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

302 30 4 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

305 306 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

307 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

308 309 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

310 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

311 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

312 313 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

***

501 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

502 504 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

505 506 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

507 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

508 509 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

510 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

511 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

512 513 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

521 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

522 524 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

525 526 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

5 27 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

528 529 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

530 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

531 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

532 533 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

541 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

542 544 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

545 546 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

547 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

548 549 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

550 .01 .01 .01 .01 .01 .01 .01 .01 .01 .0 1 .01 .01

551 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

552 553 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

561 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

562 564 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

565 566 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

567 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

568 569 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

570 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

571 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

572 573 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

581 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

582 584 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

585 586 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

587 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

588 589 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

590 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

591 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

592 593 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

601 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 165

Florida Department of Environmental Protection

602 604 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

605 606 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

607 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

608 609 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

610 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

611 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

612 613 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

621 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

622 624 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

625 626 .01 .01 .01 .01 .01 .0 1 .01 .01 .01 .01 .01 .01

627 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

628 629 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

630 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

631 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

632 633 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

641 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

642 644 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

645 646 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

647 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

648 649 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

650 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

651 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

652 653 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

661 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07

662 664 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09

665 666 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

667 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

668 669 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

670 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

671 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

672 673 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

END M ON

- GRND

- CONC

QUAL -PROPS

*** <PLS > Identifiers and Flags

*** x

- x QUALID QTID QSD VPFW VPFS QSO VQO QIFW VIQC QAGW VAQC

101 673NO23 LBS 0 0 0 1 1 1 3 1 3

END QUAL -PROPS

QUAL

- INPUT

*** Storage on surface and nonseasonal parameters

*** SQO POTFW POTFS ACQOP SQOLIM WSQOP IOQC AOQC

*** <PLS > qty/ac qty/ton qty/ton qty/ qty/ac in/hr qty/ft3 qty/ft3

*** x

- x ac.day

101 0.01 0. 0. 0.010 0.025 0.6 0. 0.

102 0.01 0. 0. 0.015 0.038 0.6 0. 0.

103 0.01 0. 0. 0.020 0.050 0.6 0. 0.

104 0.01 0. 0. 0.020 0.050 0.6 0. 0.

105 0.01 0. 0. 0.007 0.020 0.6 0. 0.

106 0.01 0. 0. 0.005 0.015 0.6 0. 0.

107 0.01 0. 0. 0.010 0.030 0.6 0. 0.

10 8 0.01 0. 0. 0.020 0.060 0.6 0. 0.

109 0.01 0. 0. 0.015 0.045 0.6 0. 0.

110 0.01 0. 0. 0.012 0.035 0.6 0. 0.

111 0.01 0. 0. 0.006 0.015 0.6 0. 0.

112 0.01 0. 0. 0.001 0.005 0.3 0. 0.

113 0.01 0. 0. 0.001 0.005 0.3 0. 0.

121 0.01 0. 0. 0.010 0.025 0.6 0. 0.

122 0.01 0. 0. 0.015 0.038 0.6 0. 0.

123 0.01 0. 0. 0.020 0.050 0.6 0. 0.

124 0.01 0. 0. 0.020 0.050 0.6 0. 0.

125 0.01 0. 0. 0.007 0.020 0.6 0. 0.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 166

Florida Department of Environmental Protection

126 0.01 0. 0. 0.005 0.015 0.6 0. 0.

127 0.01 0. 0. 0.010 0.030 0.6 0. 0.

128 0.01 0. 0. 0.020 0.060 0.6 0. 0.

129 0.01 0. 0. 0.015 0.045 0.6 0. 0.

130 0.01 0. 0. 0.012 0.035 0.6 0. 0.

131 0.01 0. 0. 0.006 0.015 0.6 0. 0.

132 0.01 0. 0. 0.001 0.005 0.3 0. 0.

133 0.01 0. 0. 0.001 0.005 0.3 0. 0.

141 0.01 0. 0. 0.010 0.025 0.6 0. 0.

142 0.01 0. 0. 0.015 0.038 0.6 0. 0.

143 0.01 0. 0. 0.020 0.050 0.6 0. 0.

144 0.01 0. 0. 0.020 0.050 0.6 0. 0.

145 0.01 0. 0. 0.007 0.020 0.6 0. 0.

146 0.01 0. 0. 0.005 0.015 0.6 0. 0.

147 0.01 0. 0. 0.010 0.030 0.6 0. 0.

148 0.01 0. 0. 0.020 0.060 0.6 0. 0.

149 0.01 0. 0. 0.015 0.045 0.6 0. 0.

150 0.01 0. 0. 0.012 0.035 0.6 0. 0.

151 0.01 0. 0. 0.006 0.015 0.6 0. 0.

152 0.01 0. 0. 0.001 0.005 0.3 0. 0.

153 0.01 0. 0. 0.001 0.005 0.3 0. 0.

161 0.01 0. 0. 0.010 0.025 0.6 0. 0.

162 0.01 0. 0. 0.015 0.038 0.6 0. 0.

163 0.01 0. 0. 0.020 0.050 0.6 0. 0.

164 0.01 0. 0. 0.020 0.050 0.6 0. 0.

165 0.01 0. 0. 0.007 0.020 0.6 0. 0.

166 0.01 0. 0. 0.005 0.015 0.6 0. 0.

167 0.01 0. 0. 0.010 0.030 0.6 0. 0.

168 0.01 0. 0. 0.020 0.060 0.6 0. 0.

169 0.01 0. 0. 0.015 0.045 0.6 0. 0.

170 0.01 0. 0. 0.012 0.035 0.6 0. 0.

171 0.01 0. 0. 0.006 0.015 0.6 0. 0.

172 0.01 0. 0. 0.001 0.005 0.3 0. 0.

173 0.01 0. 0. 0.001 0.005 0.3 0. 0.

181 0.01 0. 0. 0.010 0.025 0.6 0. 0.

182 0.01 0. 0. 0.015 0.038 0.6 0. 0.

183 0.01 0. 0. 0.020 0.050 0.6 0. 0.

184 0.01 0. 0. 0.020 0.050 0.6 0. 0.

185 0.01 0. 0. 0.007 0.020 0.6 0. 0.

186 0.01 0. 0. 0.005 0.015 0.6 0. 0.

187 0.01 0. 0. 0.010 0.030 0.6 0. 0.

188 0.01 0. 0. 0.020 0.060 0.6 0. 0.

189 0.01 0. 0. 0.015 0.045 0.6 0. 0.

190 0.01 0. 0. 0.012 0.035 0.6 0. 0.

191 0.01 0. 0. 0.006 0.015 0.6 0. 0.

192 0.01 0. 0. 0.001 0.005 0.3 0. 0.

193 0.01 0. 0. 0.001 0.005 0.3 0. 0.

201 0.01 0. 0. 0.010 0.025 0.6 0. 0.

202 0.01 0. 0. 0.015 0.038 0.6 0. 0.

203 0.01 0. 0. 0.020 0.050 0.6 0. 0.

204 0.01 0. 0. 0.020 0.050 0.6 0. 0.

205 0.01 0. 0. 0.007 0.020 0.6 0. 0.

206 0.01 0. 0. 0.005 0.015 0.6 0. 0.

207 0.01 0. 0. 0.010 0.030 0.6 0. 0.

208 0.01 0. 0. 0.020 0.060 0.6 0. 0.

209 0.01 0. 0. 0.015 0.045 0.6 0. 0.

210 0.01 0. 0. 0.012 0.035 0.6 0. 0.

211 0.01 0. 0. 0.006 0.015 0.6 0. 0.

212 0.01 0. 0. 0.001 0.005 0.3 0. 0.

213 0.01 0. 0. 0.001 0.005 0.3 0. 0.

221 0.01 0. 0. 0.010 0.025 0.6 0. 0.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 167

Florida Department of Environmental Protection

222 0.01 0. 0. 0.015 0.038 0.6 0. 0.

223 0.01 0. 0. 0.020 0.050 0.6 0. 0.

224 0.01 0. 0. 0.020 0.050 0.6 0. 0.

225 0.01 0. 0. 0.007 0.020 0.6 0. 0.

226 0.01 0. 0. 0.005 0.015 0.6 0. 0.

227 0.01 0. 0. 0.010 0.030 0.6 0. 0.

228 0.01 0. 0. 0.020 0.060 0.6 0. 0.

229 0.01 0. 0. 0.015 0.045 0.6 0. 0.

230 0.01 0. 0. 0.012 0.035 0.6 0. 0.

231 0.01 0. 0. 0.006 0.015 0.6 0. 0.

232 0.01 0. 0. 0.001 0.005 0.3 0. 0.

233 0.01 0. 0. 0.001 0.005 0.3 0. 0.

241 0.01 0. 0. 0.010 0.025 0.6 0. 0.

242 0.01 0. 0. 0.015 0.038 0.6 0. 0.

243 0.01 0. 0. 0.020 0.050 0.6 0. 0.

244 0.01 0. 0. 0.020 0.050 0.6 0. 0.

245 0.01 0. 0. 0.007 0.020 0.6 0. 0.

246 0.01 0. 0. 0.005 0.015 0.6 0. 0.

247 0.01 0. 0. 0.010 0.030 0.6 0. 0.

248 0.01 0. 0. 0.020 0.060 0.6 0. 0.

249 0.01 0. 0. 0.015 0.045 0.6 0. 0.

250 0.01 0. 0. 0.012 0.035 0.6 0. 0.

251 0.01 0. 0. 0.006 0.015 0.6 0. 0.

252 0.01 0. 0. 0.001 0.005 0.3 0. 0.

253 0.01 0. 0. 0.001 0.005 0.3 0. 0.

261 0.01 0. 0. 0.010 0.025 0.6 0. 0.

262 0.01 0. 0. 0.015 0.038 0.6 0. 0.

263 0.01 0. 0. 0.020 0.050 0.6 0. 0.

264 0.01 0. 0. 0.020 0.050 0.6 0. 0.

265 0.01 0. 0. 0.007 0.020 0.6 0. 0.

266 0.01 0. 0. 0.005 0.015 0.6 0. 0.

267 0.01 0. 0. 0.010 0.030 0.6 0. 0.

268 0.01 0. 0. 0.020 0.060 0.6 0. 0.

269 0.01 0. 0. 0.015 0.045 0.6 0. 0.

270 0.01 0. 0. 0.012 0.035 0.6 0. 0.

271 0.01 0. 0. 0.006 0.015 0.6 0. 0.

272 0.01 0. 0. 0.001 0.005 0.3 0. 0.

273 0.01 0. 0. 0.001 0.005 0.3 0. 0.

281 0.01 0. 0. 0.010 0.025 0.6 0. 0.

282 0.01 0. 0. 0.015 0.038 0.6 0. 0.

283 0.01 0. 0. 0.020 0.050 0.6 0. 0.

284 0.01 0. 0. 0.020 0.050 0.6 0. 0.

285 0.01 0. 0. 0.007 0.020 0.6 0. 0.

286 0.01 0. 0. 0.005 0.015 0.6 0. 0.

287 0.01 0. 0. 0.010 0.030 0.6 0. 0.

288 0.01 0. 0. 0.020 0.060 0.6 0. 0.

289 0.01 0. 0. 0.015 0.045 0.6 0. 0.

290 0.01 0. 0. 0.012 0.035 0.6 0. 0.

291 0.01 0. 0. 0.006 0.015 0.6 0. 0.

292 0.01 0. 0. 0.001 0.005 0.3 0. 0.

293 0.01 0. 0. 0.001 0.005 0.3 0. 0.

301 0.01 0. 0. 0.010 0.025 0.6 0. 0.

302 0.01 0. 0. 0.015 0.038 0.6 0. 0.

303 0.01 0. 0. 0.020 0.050 0.6 0. 0.

304 0.01 0. 0. 0.020 0.050 0.6 0. 0.

305 0.01 0. 0. 0.007 0.020 0.6 0. 0.

306 0.01 0. 0. 0.005 0.015 0.6 0. 0.

307 0.01 0. 0. 0.010 0.030 0.6 0. 0.

308 0.01 0. 0. 0.020 0.060 0.6 0. 0.

309 0.01 0. 0. 0.015 0.045 0.6 0. 0.

310 0.01 0. 0. 0.012 0.035 0.6 0. 0.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 168

Florida Department of Environmental Protection

311 0.01 0. 0. 0.006 0.015 0.6 0. 0.

312 0.01 0. 0. 0.001 0.005 0.3 0. 0.

313 0.01 0. 0. 0.001 0.005 0.3 0. 0.

***

501 0.01 0. 0. 0.010 0.025 0.6 0. 0.

502 0.01 0. 0. 0.015 0.038 0.6 0. 0.

503 0.01 0. 0. 0.020 0.050 0.6 0. 0.

504 0.01 0. 0. 0.020 0.050 0.6 0. 0.

505 0.01 0. 0. 0.007 0.020 0.6 0. 0.

506 0.01 0. 0. 0.005 0.015 0.6 0. 0.

507 0.01 0. 0. 0.010 0.030 0.6 0. 0.

508 0.01 0. 0. 0.020 0.060 0.6 0. 0.

509 0.01 0. 0. 0.015 0.045 0.6 0. 0.

510 0.01 0. 0. 0.012 0.035 0.6 0. 0.

511 0.01 0. 0. 0.006 0.015 0 .6 0. 0.

512 0.01 0. 0. 0.001 0.005 0.3 0. 0.

513 0.01 0. 0. 0.001 0.005 0.3 0. 0.

521 0.01 0. 0. 0.010 0.025 0.6 0. 0.

522 0.01 0. 0. 0.015 0.038 0.6 0. 0.

523 0.01 0. 0. 0.020 0.050 0.6 0. 0.

524 0.01 0. 0. 0.020 0.050 0.6 0. 0.

525 0.01 0. 0. 0.007 0.020 0.6 0. 0.

526 0.01 0. 0. 0.005 0.015 0.6 0. 0.

527 0.01 0. 0. 0.010 0.030 0.6 0. 0.

528 0.01 0. 0. 0.020 0.060 0.6 0. 0.

529 0.01 0. 0. 0.015 0.045 0.6 0. 0.

530 0.01 0. 0. 0.012 0.035 0.6 0. 0.

531 0.01 0. 0. 0.006 0.015 0.6 0. 0.

532 0.01 0. 0. 0.001 0.005 0.3 0. 0.

533 0.01 0. 0. 0.001 0.005 0.3 0. 0.

541 0.01 0. 0. 0.010 0.025 0.6 0. 0.

542 0.01 0. 0. 0.015 0.038 0.6 0. 0.

543 0.01 0. 0. 0.020 0.050 0.6 0. 0.

544 0.01 0. 0. 0.020 0.050 0.6 0. 0.

545 0.01 0. 0. 0.007 0.020 0.6 0. 0.

546 0.01 0. 0. 0.005 0.015 0.6 0. 0.

547 0.01 0. 0. 0.010 0.030 0.6 0. 0.

548 0.01 0. 0. 0.020 0.060 0.6 0. 0.

549 0.01 0. 0. 0.015 0.045 0.6 0. 0.

550 0.01 0. 0. 0.012 0.035 0.6 0. 0.

551 0.01 0. 0. 0.006 0.015 0.6 0. 0.

552 0.01 0. 0. 0.001 0.005 0.3 0. 0.

55 3 0.01 0. 0. 0.001 0.005 0.3 0. 0.

561 0.01 0. 0. 0.010 0.025 0.6 0. 0.

562 0.01 0. 0. 0.015 0.038 0.6 0. 0.

563 0.01 0. 0. 0.020 0.050 0.6 0. 0.

564 0.01 0. 0. 0.020 0.050 0.6 0. 0.

565 0.01 0. 0. 0.007 0.020 0.6 0. 0.

566 0.01 0. 0. 0.005 0.015 0.6 0. 0.

567 0.01 0. 0. 0.010 0.030 0.6 0. 0.

568 0.01 0. 0. 0.020 0.060 0.6 0. 0.

569 0.01 0. 0. 0.015 0.045 0.6 0. 0.

570 0.01 0. 0. 0.012 0.035 0.6 0. 0.

571 0.01 0. 0. 0.006 0.015 0.6 0. 0.

572 0.01 0. 0. 0.001 0.005 0.3 0. 0.

573 0.01 0. 0. 0.001 0.005 0.3 0. 0.

581 0.01 0. 0. 0.010 0.025 0.6 0. 0.

582 0.01 0. 0. 0.015 0.038 0.6 0. 0.

583 0.01 0. 0. 0.020 0.050 0.6 0. 0.

584 0.01 0. 0. 0.020 0.050 0.6 0. 0.

585 0.01 0. 0. 0.007 0.020 0.6 0. 0.

586 0.01 0. 0. 0.005 0.015 0.6 0. 0.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 169

Florida Department of Environmental Protection

587 0.01 0. 0. 0.010 0.030 0.6 0. 0.

588 0.01 0. 0. 0.020 0.060 0.6 0. 0.

589 0.01 0. 0. 0.015 0.045 0.6 0. 0.

590 0.01 0. 0. 0.012 0.035 0.6 0. 0.

591 0.01 0. 0. 0.006 0.015 0.6 0. 0.

592 0.01 0. 0. 0.001 0.005 0.3 0. 0.

593 0.01 0. 0. 0.001 0.005 0.3 0. 0.

601 0.01 0. 0. 0.010 0.025 0.6 0. 0.

602 0.01 0. 0. 0.015 0.038 0.6 0. 0.

603 0.01 0. 0. 0.020 0.050 0.6 0. 0.

604 0.01 0. 0. 0.020 0.050 0.6 0. 0.

605 0.01 0. 0. 0.007 0.020 0.6 0. 0.

606 0.01 0. 0. 0.005 0.015 0.6 0. 0.

607 0.01 0. 0. 0.010 0.030 0.6 0. 0.

608 0.01 0. 0. 0.020 0.060 0.6 0. 0.

609 0.01 0. 0. 0.015 0.045 0.6 0. 0.

610 0.01 0. 0. 0.012 0.035 0.6 0. 0.

611 0.01 0. 0. 0.006 0.015 0.6 0. 0.

612 0.01 0. 0. 0.001 0.005 0.3 0. 0.

613 0.01 0. 0. 0.001 0.005 0.3 0. 0.

621 0.01 0. 0. 0.010 0.025 0.6 0. 0.

622 0.01 0. 0. 0.015 0.038 0.6 0. 0.

623 0.01 0. 0. 0.020 0.050 0.6 0. 0.

624 0.01 0. 0. 0.020 0.050 0.6 0. 0.

625 0.01 0. 0. 0.007 0.020 0.6 0. 0.

626 0.01 0. 0. 0.005 0.015 0.6 0. 0.

627 0.01 0. 0. 0.010 0.030 0.6 0. 0.

628 0.01 0. 0. 0.020 0.060 0.6 0. 0.

629 0.01 0. 0. 0.015 0.045 0.6 0. 0.

630 0.01 0. 0. 0.012 0.035 0.6 0. 0.

631 0.01 0. 0. 0.006 0.015 0.6 0. 0.

632 0.01 0. 0. 0.001 0.005 0.3 0. 0.

633 0.01 0. 0. 0.001 0.005 0.3 0. 0.

641 0.01 0. 0. 0.010 0.025 0.6 0. 0.

642 0.01 0. 0. 0.015 0.038 0.6 0. 0.

643 0.01 0. 0. 0.020 0.050 0.6 0. 0.

644 0.01 0. 0. 0.020 0.050 0.6 0. 0.

645 0.01 0. 0. 0.007 0.020 0.6 0. 0.

646 0.01 0. 0. 0.005 0.015 0.6 0. 0.

647 0.01 0. 0. 0.010 0.030 0.6 0. 0.

648 0.01 0. 0. 0.020 0.060 0.6 0. 0.

649 0.01 0. 0. 0.015 0.045 0.6 0. 0.

650 0.01 0. 0. 0.012 0.035 0.6 0. 0.

651 0.01 0. 0. 0.006 0.015 0.6 0. 0.

652 0.01 0. 0. 0.001 0.005 0.3 0. 0.

653 0.01 0. 0. 0.001 0.005 0.3 0. 0.

661 0.01 0. 0. 0.010 0.025 0.6 0. 0.

662 0.01 0. 0. 0.015 0.038 0.6 0. 0.

663 0.01 0. 0. 0.020 0.050 0.6 0. 0.

664 0.01 0. 0. 0.020 0.050 0.6 0. 0.

665 0.01 0. 0. 0.007 0.020 0.6 0. 0.

666 0.01 0. 0. 0.005 0.015 0.6 0. 0.

667 0.01 0. 0. 0.010 0.030 0.6 0. 0.

668 0.01 0. 0. 0.020 0.060 0.6 0. 0.

669 0.01 0. 0. 0.015 0.045 0.6 0. 0.

670 0.01 0. 0. 0.012 0.035 0.6 0. 0.

671 0.01 0. 0. 0.006 0.015 0.6 0. 0.

672 0.01 0. 0. 0.001 0.005 0.3 0. 0.

673 0.01 0. 0. 0.001 0.005 0.3 0. 0.

END QUAL

- INPUTFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 170

Florida Department of Environmental Protection

MON

- ACCUM

*** <PLS > Value at start of each month for accum rate of QUALOF (lb/ac.day)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 0.02 0.020.025 0.03 0.03 0.03 0.03 0.03 0.030.025 0.02 0.02

102 0.0250.0250.0300.0450.0450.0450.0450.0450.0450.0300.0250.025

103 104 0.03 0.030.045 0.06 0.06 0.06 0.06 0.06 0.060.045 0.03 0.03

105 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

106 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

107 0.01 0.010.0120.0150.0150.0150.0150.0150.0150.012 0.01 0.01

108 0.05 0.05 0.07 0.09 0.09 0.09 0.09 0.09 0.09 0.07 0.05 0.05

109 0.04 0.04 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.05 0.04 0.04

110 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

111 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

112 1130.0030.0030.0040.0040.0040.0040.0040.0040.0040.0040.0030.003

***

121 0.02 0.020.025 0.03 0.03 0.03 0.03 0.03 0.030.025 0.02 0.02

122 0.0250.0250.0300.0450.0450.0450.0450.0450.0450.0300.0250.025

123 124 0.03 0.030.045 0.06 0.06 0.06 0.06 0.06 0.060.045 0.03 0.03

125 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040 .0030.003

126 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

127 0.01 0.010.0120.0150.0150.0150.0150.0150.0150.012 0.01 0.01

128 0.05 0.05 0.07 0.09 0.09 0.09 0.09 0.09 0.09 0.07 0.05 0.05

129 0.04 0.04 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.05 0.04 0.04

130 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

131 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

132 1330.0030.0030.0040.0040.0040.0040.0040.0040.0040.0040.0030.003

***

141 0.02 0.020.025 0.03 0.03 0.03 0.03 0.03 0.030.025 0.02 0.02

142 0.0250.0250.0300.0450.0450.0450.0450.0450.0450.0300.0250.025

143 144 0.03 0.030.045 0.06 0.06 0.06 0.06 0.06 0.060.045 0.03 0.03

145 0.0030.0030.0040.0060.0060.0060. 0060.0060.0060.0040.0030.003

146 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

147 0.01 0.010.0120.0150.0150.0150.0150.0150.0150.012 0.01 0.01

148 0.05 0.05 0.07 0.09 0.09 0.09 0.09 0.09 0.09 0.07 0.05 0.05

149 0.04 0.04 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.05 0.04 0.04

150 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

151 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

152 1530.0030.0030.0040.0040.0040.0040.0040.0040.0040 .0040.0030.003

161 0.02 0.020.025 0.03 0.03 0.03 0.03 0.03 0.030.025 0.02 0.02

162 0.0250.0250.0300.0450.0450.0450.0450.0450.0450.0300.0250.025

163 164 0.03 0.030.045 0.06 0.06 0.06 0.06 0.06 0.060.045 0.03 0.03

165 0.0030.0030.0040. 0060.0060.0060.0060.0060.0060.0040.0030.003

166 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

167 0.01 0.010.0120.0150.0150.0150.0150.0150.0150.012 0.01 0.01

168 0.05 0.05 0.07 0.09 0.09 0.09 0.09 0.09 0.09 0.07 0.05 0.05

169 0.04 0.04 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.05 0.04 0.04

170 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

171 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

172 1730.0030.0030.0040.0040.0040.0040 .0040.0040.0040.0040.0030.003

181 0.02 0.020.025 0.03 0.03 0.03 0.03 0.03 0.030.025 0.02 0.02

182 0.0250.0250.0300.0450.0450.0450.0450.0450.0450.0300.0250.025

183 184 0.03 0.030.045 0.06 0.06 0.06 0.06 0.06 0.060.045 0.03 0.03

185 0. 0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

186 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

187 0.01 0.010.0120.0150.0150.0150.0150.0150.0150.012 0.01 0.01

188 0.05 0.05 0.07 0.09 0.09 0.09 0.09 0.09 0.09 0.07 0.05 0.05

189 0.04 0.04 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.05 0.04 0.04

190 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

191 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

192 1930.0030.0030.0040 .0040.0040.0040.0040.0040.0040.0040.0030.003

201 0.02 0.020.025 0.03 0.03 0.03 0.03 0.03 0.030.025 0.02 0.02FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 171

Florida Department of Environmental Protection

202 0.0250.0250.0300.0450.0450.0450.0450.0450.0450.0300.0250.025

203 204 0.03 0.030.045 0.06 0.06 0.06 0.06 0.06 0.060.045 0.03 0. 03

205 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

206 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

207 0.01 0.010.0120.0150.0150.0150.0150.0150.0150.012 0.01 0.01

208 0.05 0.05 0.07 0.09 0.09 0.09 0.09 0.09 0.09 0.07 0.05 0.05

209 0.04 0.04 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.05 0.04 0.04

210 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

211 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

212 213 0.0030.0030.0040.0040.0040.0040.0040.0040.0040.0040.0030.003

221 0.02 0.020.025 0.03 0.03 0.03 0.03 0.03 0.030.025 0.02 0.02

222 0.0250.0250.0300.0450.0450.0450.0450.0450.0450.0300.0250.025

223 224 0.03 0.030.045 0.06 0.06 0.06 0.06 0.06 0. 060.045 0.03 0.03

225 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

226 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

227 0.01 0.010.0120.0150.0150.0150.0150.0150.0150.012 0.01 0.01

228 0.05 0.05 0.07 0.09 0.09 0.09 0.09 0.09 0.09 0.07 0.05 0.05

229 0.04 0.04 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.05 0.04 0.04

230 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

231 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030. 003

232 2330.0030.0030.0040.0040.0040.0040.0040.0040.0040.0040.0030.003

241 0.02 0.020.025 0.03 0.03 0.03 0.03 0.03 0.030.025 0.02 0.02

242 0.0250.0250.0300.0450.0450.0450.0450.0450.0450.0300.0250.025

243 244 0.03 0.030.045 0.06 0.06 0.06 0.06 0.06 0.060.045 0.03 0.03

245 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

246 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

247 0.01 0.010.0120.0150.0150.0150.0150.0150.0150.012 0.01 0.01

248 0.05 0.05 0.07 0.09 0.09 0.09 0.09 0.09 0.09 0.07 0.05 0.05

249 0.04 0.04 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.05 0.04 0.04

250 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

251 0.0030.0030.0040.0060.0060.0060.0060.0060. 0060.0040.0030.003

252 2530.0030.0030.0040.0040.0040.0040.0040.0040.0040.0040.0030.003

261 0.02 0.020.025 0.03 0.03 0.03 0.03 0.03 0.030.025 0.02 0.02

262 0.0250.0250.0300.0450.0450.0450.0450.0450.0450.0300.0250.025

263 264 0.03 0.030.045 0.06 0.06 0.06 0.06 0.06 0.060.045 0.03 0.03

265 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

266 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

267 0.01 0.010.0120.0150.0150.0150.0150.0150.0150.012 0.01 0.01

268 0.05 0.05 0.07 0.09 0.09 0.09 0.09 0.09 0.09 0.07 0.05 0.05

269 0.04 0.04 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.05 0.04 0.04

270 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

271 0.0030.0030.0040.0060.0060. 0060.0060.0060.0060.0040.0030.003

272 2730.0030.0030.0040.0040.0040.0040.0040.0040.0040.0040.0030.003

281 0.02 0.020.025 0.03 0.03 0.03 0.03 0.03 0.030.025 0.02 0.02

282 0.0250.0250.0300.0450.0450.0450.0450.0450.0450.0300.0250.025

283 2 84 0.03 0.030.045 0.06 0.06 0.06 0.06 0.06 0.060.045 0.03 0.03

285 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

286 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

287 0.01 0.010.0120.0150.0150.0150.0150.0150.0150.012 0.01 0.01

288 0.05 0.05 0.07 0.09 0.09 0.09 0.09 0.09 0.09 0.07 0.05 0.05

289 0.04 0.04 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.05 0.04 0.04

290 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

291 0.0030.0030. 0040.0060.0060.0060.0060.0060.0060.0040.0030.003

292 2930.0030.0030.0040.0040.0040.0040.0040.0040.0040.0040.0030.003

301 0.02 0.020.025 0.03 0.03 0.03 0.03 0.03 0.030.025 0.02 0.02

302 0.0250.0250.0300.0450.0450.0450.0450.0450.0450.0300.0 250.025

303 304 0.03 0.030.045 0.06 0.06 0.06 0.06 0.06 0.060.045 0.03 0.03

305 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

306 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

307 0.01 0.010.0120.0150.0150.0150.0150.0150.0150.012 0.01 0.01

308 0.05 0.05 0.07 0.09 0.09 0.09 0.09 0.09 0.09 0.07 0.05 0.05FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 172

Florida Department of Environmental Protection

309 0.04 0.04 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.05 0.04 0.04

310 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

311 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

312 3130.0030.0030.0040.0040.0040.0040.0040.0040.0040.0040.0030.003

***

501 0.02 0.020.025 0.03 0.03 0.03 0.03 0.03 0.030.025 0.02 0.02

502 0.0250.0250.0300.0450.0450.0450.04 50.0450.0450.0300.0250.025

503 504 0.03 0.030.045 0.06 0.06 0.06 0.06 0.06 0.060.045 0.03 0.03

505 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

506 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

507 0.01 0.010.0120.0150.0150.0150.0150.0150.0150.012 0.01 0.01

508 0.05 0.05 0.07 0.09 0.09 0.09 0.09 0.09 0.09 0.07 0.05 0.05

509 0.04 0.04 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.05 0.04 0.04

510 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0 040.0030.003

511 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

512 5130.0030.0030.0040.0040.0040.0040.0040.0040.0040.0040.0030.003

521 0.02 0.020.025 0.03 0.03 0.03 0.03 0.03 0.030.025 0.02 0.02

522 0.0250.0250.0300.04 50.0450.0450.0450.0450.0450.0300.0250.025

523 524 0.03 0.030.045 0.06 0.06 0.06 0.06 0.06 0.060.045 0.03 0.03

525 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

526 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

527 0.01 0.010.0120.0150.0150.0150.0150.0150.0150.012 0.01 0.01

528 0.05 0.05 0.07 0.09 0.09 0.09 0.09 0.09 0.09 0.07 0.05 0.05

529 0.04 0.04 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.05 0.04 0.04

530 0.0030.0030.0040.0060.0060.0060.0 060.0060.0060.0040.0030.003

531 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

532 5330.0030.0030.0040.0040.0040.0040.0040.0040.0040.0040.0030.003

541 0.02 0.020.025 0.03 0.03 0.03 0.03 0.03 0.030.025 0.02 0.02

542 0.02 50.0250.0300.0450.0450.0450.0450.0450.0450.0300.0250.025

543 544 0.03 0.030.045 0.06 0.06 0.06 0.06 0.06 0.060.045 0.03 0.03

545 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

546 0.0030.0030.0040.0060.0060.0060.0060.0060.0060 .0040.0030.003

547 0.01 0.010.0120.0150.0150.0150.0150.0150.0150.012 0.01 0.01

548 0.05 0.05 0.07 0.09 0.09 0.09 0.09 0.09 0.09 0.07 0.05 0.05

549 0.04 0.04 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.05 0.04 0.04

550 0.0030.0030.0040.0 060.0060.0060.0060.0060.0060.0040.0030.003

551 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

552 5530.0030.0030.0040.0040.0040.0040.0040.0040.0040.0040.0030.003

561 0.02 0.020.025 0.03 0.03 0.03 0.03 0.03 0.030.025 0.02 0.02

562 0.0250.0250.0300.0450.0450.0450.0450.0450.0450.0300.0250.025

563 564 0.03 0.030.045 0.06 0.06 0.06 0.06 0.06 0.060.045 0.03 0.03

565 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

566 0.0030.0030.0040.0060.0060.0060 .0060.0060.0060.0040.0030.003

567 0.01 0.010.0120.0150.0150.0150.0150.0150.0150.012 0.01 0.01

568 0.05 0.05 0.07 0.09 0.09 0.09 0.09 0.09 0.09 0.07 0.05 0.05

569 0.04 0.04 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.05 0.04 0.04

570 0.0 030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

571 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

572 5730.0030.0030.0040.0040.0040.0040.0040.0040.0040.0040.0030.003

581 0.02 0.020.025 0.03 0.03 0.03 0.03 0.03 0.030.025 0.02 0.02

582 0.0250.0250.0300.0450.0450.0450.0450.0450.0450.0300.0250.025

583 584 0.03 0.030.045 0.06 0.06 0.06 0.06 0.06 0.060.045 0.03 0.03

585 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

586 0.0030.0030.0040 .0060.0060.0060.0060.0060.0060.0040.0030.003

587 0.01 0.010.0120.0150.0150.0150.0150.0150.0150.012 0.01 0.01

588 0.05 0.05 0.07 0.09 0.09 0.09 0.09 0.09 0.09 0.07 0.05 0.05

589 0.04 0.04 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.05 0.04 0.0 4

590 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

591 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

592 5930.0030.0030.0040.0040.0040.0040.0040.0040.0040.0040.0030.003

601 0.02 0.020.025 0.03 0.03 0.03 0.03 0.03 0.030.025 0.02 0.02FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 173

Florida Department of Environmental Protection

602 0.0250.0250.0300.0450.0450.0450.0450.0450.0450.0300.0250.025

603 604 0.03 0.030.045 0.06 0.06 0.06 0.06 0.06 0.060.045 0.03 0.03

605 0 .0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

606 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

607 0.01 0.010.0120.0150.0150.0150.0150.0150.0150.012 0.01 0.01

608 0.05 0.05 0.07 0.09 0.09 0.09 0.09 0.09 0.09 0.07 0.05 0.05

609 0.04 0.04 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.05 0.04 0.04

610 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

611 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

612 6130.0030.0030.004 0.0040.0040.0040.0040.0040.0040.0040.0030.003

621 0.02 0.020.025 0.03 0.03 0.03 0.03 0.03 0.030.025 0.02 0.02

622 0.0250.0250.0300.0450.0450.0450.0450.0450.0450.0300.0250.025

623 624 0.03 0.030.045 0.06 0.06 0.06 0.06 0.06 0.060.045 0.03 0. 03

625 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

626 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

627 0.01 0.010.0120.0150.0150.0150.0150.0150.0150.012 0.01 0.01

628 0.05 0.05 0.07 0.09 0.09 0.09 0.09 0.09 0.09 0.07 0.05 0.05

629 0.04 0.04 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.05 0.04 0.04

630 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

631 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

632 633 0.0030.0030.0040.0040.0040.0040.0040.0040.0040.0040.0030.003

641 0.02 0.020.025 0.03 0.03 0.03 0.03 0.03 0.030.025 0.02 0.02

642 0.0250.0250.0300.0450.0450.0450.0450.0450.0450.0300.0250.025

643 644 0.03 0.030.045 0.06 0.06 0.06 0.06 0.06 0. 060.045 0.03 0.03

645 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

646 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

647 0.01 0.010.0120.0150.0150.0150.0150.0150.0150.012 0.01 0.01

648 0.05 0.05 0.07 0.09 0.09 0.09 0.09 0.09 0.09 0.07 0.05 0.05

649 0.04 0.04 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.05 0.04 0.04

650 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

651 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030. 003

652 6530.0030.0030.0040.0040.0040.0040.0040.0040.0040.0040.0030.003

661 0.02 0.020.025 0.03 0.03 0.03 0.03 0.03 0.030.025 0.02 0.02

662 0.0250.0250.0300.0450.0450.0450.0450.0450.0450.0300.0250.025

663 664 0.03 0.030.045 0.06 0.06 0.06 0.06 0.06 0.060.045 0.03 0.03

665 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

666 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

667 0.01 0.010.0120.0150.0150.0150.0150.0150.0150.012 0.01 0.01

668 0.05 0.05 0.07 0.09 0.09 0.09 0.09 0.09 0.09 0.07 0.05 0.05

669 0.04 0.04 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.05 0.04 0.04

670 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

671 0.0030.0030.0040.0060.0060.0060.0060.0060. 0060.0040.0030.003

672 6730.0030.0030.0040.0040.0040.0040.0040.0040.0040.0040.0030.003

END MON

- ACCUM

MON

- SQOLIM

*** <PLS > Value at start of month for limiting storage of QUALOF (lb/ac)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 0.0450.0450.0600.0750.0750.0750.0750.0750.0750.0600.0450.045

102 0.0600.0600.0750.1130.1130.1130.1130.1130.1130.0750.0600.060

103 1040.0750.0750.1130.1500.1500.1500.1500.1500.1500.1130.0750.075

105 0.0060.0060.0080.0120. 0120.0120.0120.0120.0120.0080.0060.006

106 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

107 0.02 0.020.024 0.03 0.03 0.03 0.03 0.03 0.030.024 0.02 0.02

108 0.1 0.1 0.14 0.2 0.2 0.2 0.2 0.2 0.2 0.14 0.1 0.1

10 9 0.08 0.08 0.10 0.12 0.12 0.12 0.12 0.12 0.12 0.10 0.08 0.08

110 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

111 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

112 1130.0060.0060.0080.0080.0080.0080.0080. 0080.0080.0080.0060.006

***

121 0.0450.0450.0600.0750.0750.0750.0750.0750.0750.0600.0450.045

122 0.0600.0600.0750.1130.1130.1130.1130.1130.1130.0750.0600.060FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 174

Florida Department of Environmental Protection

123 1240.0750.0750.1130.1500.1500.1500.1500.1500.1500.1130.0750.075

125 0.006 0.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

126 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

127 0.02 0.020.024 0.03 0.03 0.03 0.03 0.03 0.030.024 0.02 0.02

128 0.1 0.1 0.14 0.2 0.2 0.2 0.2 0.2 0.2 0.14 0.1 0.1

129 0.08 0.08 0.10 0.12 0.12 0.12 0.12 0.12 0.12 0.10 0.08 0.08

130 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

131 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

132 1330.0060.0060.0080.008 0.0080.0080.0080.0080.0080.0080.0060.006

***

141 0.0450.0450.0600.0750.0750.0750.0750.0750.0750.0600.0450.045

142 0.0600.0600.0750.1130.1130.1130.1130.1130.1130.0750.0600.060

143 1440.0750.0750.1130.1500.1500.1500.1500.1500.1500.1130.0750.07 5

145 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

146 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

147 0.02 0.020.024 0.03 0.03 0.03 0.03 0.03 0.030.024 0.02 0.02

148 0.1 0.1 0.14 0.2 0.2 0.2 0.2 0.2 0.2 0.14 0.1 0.1

149 0.08 0.08 0.10 0.12 0.12 0.12 0.12 0.12 0.12 0.10 0.08 0.08

150 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

151 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

152 1530.0 060.0060.0080.0080.0080.0080.0080.0080.0080.0080.0060.006

161 0.0450.0450.0600.0750.0750.0750.0750.0750.0750.0600.0450.045

162 0.0600.0600.0750.1130.1130.1130.1130.1130.1130.0750.0600.060

163 1640.0750.0750.1130.1500.1500.1500.1500.1500.1500 .1130.0750.075

165 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

166 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

167 0.02 0.020.024 0.03 0.03 0.03 0.03 0.03 0.030.024 0.02 0.02

168 0.1 0.1 0.14 0.2 0.2 0.2 0.2 0.2 0.2 0.14 0.1 0.1

169 0.08 0.08 0.10 0.12 0.12 0.12 0.12 0.12 0.12 0.10 0.08 0.08

170 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

171 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

172 1730.0060.0060.0080.0080.0080.0080.0080.0080.0080.0080.0060.006

181 0.0450.0450.0600.0750.0750.0750.0750.0750.0750.0600.0450.045

182 0.0600.0600.0750.1130.1130.1130.1130.1130.1130.0750.0600.060

183 1840.0750.0750.1130.1500.1500.1500.1 500.1500.1500.1130.0750.075

185 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

186 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

187 0.02 0.020.024 0.03 0.03 0.03 0.03 0.03 0.030.024 0.02 0.02

188 0.1 0.1 0.14 0.2 0.2 0.2 0.2 0.2 0.2 0.14 0.1 0.1

189 0.08 0.08 0.10 0.12 0.12 0.12 0.12 0.12 0.12 0.10 0.08 0.08

190 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

191 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0 080.0060.006

192 1930.0060.0060.0080.0080.0080.0080.0080.0080.0080.0080.0060.006

201 0.0450.0450.0600.0750.0750.0750.0750.0750.0750.0600.0450.045

202 0.0600.0600.0750.1130.1130.1130.1130.1130.1130.0750.0600.060

203 2040.0750.07 50.1130.1500.1500.1500.1500.1500.1500.1130.0750.075

205 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

206 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

207 0.02 0.020.024 0.03 0.03 0.03 0.03 0.03 0.030.024 0.02 0.02

208 0.1 0.1 0.14 0.2 0.2 0.2 0.2 0.2 0.2 0.14 0.1 0.1

209 0.08 0.08 0.10 0.12 0.12 0.12 0.12 0.12 0.12 0.10 0.08 0.08

210 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

211 0.0060.0060.0080.0120.01 20.0120.0120.0120.0120.0080.0060.006

212 2130.0060.0060.0080.0080.0080.0080.0080.0080.0080.0080.0060.006

221 0.0450.0450.0600.0750.0750.0750.0750.0750.0750.0600.0450.045

222 0.0600.0600.0750.1130.1130.1130.1130.1130.1130.0750.0600.060

223 2240.0750.0750.1130.1500.1500.1500.1500.1500.1500.1130.0750.075

225 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

226 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

227 0.02 0.020.024 0.03 0.03 0.03 0.03 0.03 0.030.024 0.02 0.02

228 0.1 0.1 0.14 0.2 0.2 0.2 0.2 0.2 0.2 0.14 0.1 0.1FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 175

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229 0.08 0.08 0.10 0.12 0.12 0.12 0.12 0.12 0.12 0.10 0.08 0.08

230 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

231 0.0060.0060 .0080.0120.0120.0120.0120.0120.0120.0080.0060.006

232 2330.0060.0060.0080.0080.0080.0080.0080.0080.0080.0080.0060.006

241 0.0450.0450.0600.0750.0750.0750.0750.0750.0750.0600.0450.045

242 0.0600.0600.0750.1130.1130.1130.1130.1130.1130.0750.06 00.060

243 2440.0750.0750.1130.1500.1500.1500.1500.1500.1500.1130.0750.075

245 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

246 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

247 0.02 0.020.024 0.03 0.03 0.03 0.03 0.03 0.030.024 0.02 0.02

248 0.1 0.1 0.14 0.2 0.2 0.2 0.2 0.2 0.2 0.14 0.1 0.1

249 0.08 0.08 0.10 0.12 0.12 0.12 0.12 0.12 0.12 0.10 0.08 0.08

250 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

251 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

252 2530.0060.0060.0080.0080.0080.0080.0080.0080.0080.0080.0060.006

261 0.0450.0450.0600.0750.0750.0750.0750.0750.0750.0600.0450.045

262 0.0600.0600.0750.1130.1130.1130.1130.1130 .1130.0750.0600.060

263 2640.0750.0750.1130.1500.1500.1500.1500.1500.1500.1130.0750.075

265 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

266 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

267 0.02 0.020.024 0.03 0.03 0.03 0.03 0.03 0.030.024 0.02 0.02

268 0.1 0.1 0.14 0.2 0.2 0.2 0.2 0.2 0.2 0.14 0.1 0.1

269 0.08 0.08 0.10 0.12 0.12 0.12 0.12 0.12 0.12 0.10 0.08 0.08

270 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060 .006

271 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

272 2730.0060.0060.0080.0080.0080.0080.0080.0080.0080.0080.0060.006

281 0.0450.0450.0600.0750.0750.0750.0750.0750.0750.0600.0450.045

282 0.0600.0600.0750.1130.1130.1 130.1130.1130.1130.0750.0600.060

283 2840.0750.0750.1130.1500.1500.1500.1500.1500.1500.1130.0750.075

285 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

286 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

287 0.02 0.020.024 0.03 0.03 0.03 0.03 0.03 0.030.024 0.02 0.02

288 0.1 0.1 0.14 0.2 0.2 0.2 0.2 0.2 0.2 0.14 0.1 0.1

289 0.08 0.08 0.10 0.12 0.12 0.12 0.12 0.12 0.12 0.10 0.08 0.08

290 0.0060.0060.0080.0120.0120.0120.0120.0120.0 120.0080.0060.006

291 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

292 2930.0060.0060.0080.0080.0080.0080.0080.0080.0080.0080.0060.006

301 0.0450.0450.0600.0750.0750.0750.0750.0750.0750.0600.0450.045

302 0.06 00.0600.0750.1130.1130.1130.1130.1130.1130.0750.0600.060

303 3040.0750.0750.1130.1500.1500.1500.1500.1500.1500.1130.0750.075

305 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

306 0.0060.0060.0080.0120.0120.0120.0120.0120.0120. 0080.0060.006

307 0.02 0.020.024 0.03 0.03 0.03 0.03 0.03 0.030.024 0.02 0.02

308 0.1 0.1 0.14 0.2 0.2 0.2 0.2 0.2 0.2 0.14 0.1 0.1

309 0.08 0.08 0.10 0.12 0.12 0.12 0.12 0.12 0.12 0.10 0.08 0.08

310 0.0060.0060.0080.01 20.0120.0120.0120.0120.0120.0080.0060.006

311 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

312 3130.0060.0060.0080.0080.0080.0080.0080.0080.0080.0080.0060.006

***

501 0.0450.0450.0600.0750.0750.0750.0750.0750.0750.0600.0450.0 45

502 0.0600.0600.0750.1130.1130.1130.1130.1130.1130.0750.0600.060

503 5040.0750.0750.1130.1500.1500.1500.1500.1500.1500.1130.0750.075

505 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

506 0.0060.0060.0080.0120.0120.012 0.0120.0120.0120.0080.0060.006

507 0.02 0.020.024 0.03 0.03 0.03 0.03 0.03 0.030.024 0.02 0.02

508 0.1 0.1 0.14 0.2 0.2 0.2 0.2 0.2 0.2 0.14 0.1 0.1

509 0.08 0.08 0.10 0.12 0.12 0.12 0.12 0.12 0.12 0.10 0.08 0.08

510 0. 0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

511 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

512 5130.0060.0060.0080.0080.0080.0080.0080.0080.0080.0080.0060.006

521 0.0450.0450.0600.0750.0750.0750.0750.0750.075 0.0600.0450.045FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 176

Florida Department of Environmental Protection

522 0.0600.0600.0750.1130.1130.1130.1130.1130.1130.0750.0600.060

523 5240.0750.0750.1130.1500.1500.1500.1500.1500.1500.1130.0750.075

525 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

526 0.0060.0060.0080. 0120.0120.0120.0120.0120.0120.0080.0060.006

527 0.02 0.020.024 0.03 0.03 0.03 0.03 0.03 0.030.024 0.02 0.02

528 0.1 0.1 0.14 0.2 0.2 0.2 0.2 0.2 0.2 0.14 0.1 0.1

529 0.08 0.08 0.10 0.12 0.12 0.12 0.12 0.12 0.12 0.10 0.08 0.08

530 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

531 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

532 5330.0060.0060.0080.0080.0080.0080.0080.0080.0080.0080.0060.006

541 0.0450.0450.0600.0750.0750.0750. 0750.0750.0750.0600.0450.045

542 0.0600.0600.0750.1130.1130.1130.1130.1130.1130.0750.0600.060

543 5440.0750.0750.1130.1500.1500.1500.1500.1500.1500.1130.0750.075

545 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

546 0.00 60.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

547 0.02 0.020.024 0.03 0.03 0.03 0.03 0.03 0.030.024 0.02 0.02

548 0.1 0.1 0.14 0.2 0.2 0.2 0.2 0.2 0.2 0.14 0.1 0.1

549 0.08 0.08 0.10 0.12 0.12 0.12 0.12 0.12 0.12 0.10 0.08 0.08

550 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

551 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

552 5530.0060.0060.0080.0080.0080.0080.0080.0080.0080.0080.0060.006

561 0.0450.0450.0600.07 50.0750.0750.0750.0750.0750.0600.0450.045

562 0.0600.0600.0750.1130.1130.1130.1130.1130.1130.0750.0600.060

563 5640.0750.0750.1130.1500.1500.1500.1500.1500.1500.1130.0750.075

565 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

566 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

567 0.02 0.020.024 0.03 0.03 0.03 0.03 0.03 0.030.024 0.02 0.02

568 0.1 0.1 0.14 0.2 0.2 0.2 0.2 0.2 0.2 0.14 0.1 0.1

569 0.08 0.08 0.10 0.12 0.12 0.12 0.12 0.12 0.12 0.10 0.08 0.08

570 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

571 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

572 5730.0060.0060.0080.0080.0080.0080.0080.0080.0080.0080.0060.006

581 0.0450 .0450.0600.0750.0750.0750.0750.0750.0750.0600.0450.045

582 0.0600.0600.0750.1130.1130.1130.1130.1130.1130.0750.0600.060

583 5840.0750.0750.1130.1500.1500.1500.1500.1500.1500.1130.0750.075

585 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.00 80.0060.006

586 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

587 0.02 0.020.024 0.03 0.03 0.03 0.03 0.03 0.030.024 0.02 0.02

588 0.1 0.1 0.14 0.2 0.2 0.2 0.2 0.2 0.2 0.14 0.1 0.1

589 0.08 0.08 0.10 0.12 0.12 0.12 0.12 0.12 0.12 0.10 0.08 0.08

590 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

591 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

592 5930.0060.0060.0080.0080.0080.0080.0080.0080.0080.0080.0060.006

601 0.0450.0450.0600.0750.0750.0750.0750.0750.0750.0600.0450.045

602 0.0600.0600.0750.1130.1130.1130.1130.1130.1130.0750.0600.060

603 6040.0750.0750.1130.1500.1500.1500.1500 .1500.1500.1130.0750.075

605 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

606 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

607 0.02 0.020.024 0.03 0.03 0.03 0.03 0.03 0.030.024 0.02 0.02

608 0.1 0.1 0.14 0.2 0.2 0.2 0.2 0.2 0.2 0.14 0.1 0.1

609 0.08 0.08 0.10 0.12 0.12 0.12 0.12 0.12 0.12 0.10 0.08 0.08

610 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

611 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080 .0060.006

612 6130.0060.0060.0080.0080.0080.0080.0080.0080.0080.0080.0060.006

621 0.0450.0450.0600.0750.0750.0750.0750.0750.0750.0600.0450.045

622 0.0600.0600.0750.1130.1130.1130.1130.1130.1130.0750.0600.060

623 6240.0750.0750.1130.1500.1 500.1500.1500.1500.1500.1130.0750.075

625 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

626 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

627 0.02 0.020.024 0.03 0.03 0.03 0.03 0.03 0.030.024 0.02 0.02

628 0.1 0.1 0.14 0.2 0.2 0.2 0.2 0.2 0.2 0.14 0.1 0.1FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 177

Florida Department of Environmental Protection

629 0.08 0.08 0.10 0.12 0.12 0.12 0.12 0.12 0.12 0.10 0.08 0.08

630 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

631 0.0060.0060.0080.0120.0120.0120.0120.0 120.0120.0080.0060.006

632 6330.0060.0060.0080.0080.0080.0080.0080.0080.0080.0080.0060.006

641 0.0450.0450.0600.0750.0750.0750.0750.0750.0750.0600.0450.045

642 0.0600.0600.0750.1130.1130.1130.1130.1130.1130.0750.0600.060

643 6440.0750.075 0.1130.1500.1500.1500.1500.1500.1500.1130.0750.075

645 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

646 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

647 0.02 0.020.024 0.03 0.03 0.03 0.03 0.03 0.030.024 0.02 0.02

648 0.1 0.1 0.14 0.2 0.2 0.2 0.2 0.2 0.2 0.14 0.1 0.1

649 0.08 0.08 0.10 0.12 0.12 0.12 0.12 0.12 0.12 0.10 0.08 0.08

650 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

651 0.0060.0060.0080.0120.012 0.0120.0120.0120.0120.0080.0060.006

652 6530.0060.0060.0080.0080.0080.0080.0080.0080.0080.0080.0060.006

661 0.0450.0450.0600.0750.0750.0750.0750.0750.0750.0600.0450.045

662 0.0600.0600.0750.1130.1130.1130.1130.1130.1130.0750.0600.060

663 6640.0750.0750.1130.1500.1500.1500.1500.1500.1500.1130.0750.075

665 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

666 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

667 0.02 0.020.024 0.03 0.03 0.03 0.03 0.03 0.030.024 0.02 0.02

668 0.1 0.1 0.14 0.2 0.2 0.2 0.2 0.2 0.2 0.14 0.1 0.1

669 0.08 0.08 0.10 0.12 0.12 0.12 0.12 0.12 0.12 0.10 0.08 0.08

670 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

671 0.0060.0060. 0080.0120.0120.0120.0120.0120.0120.0080.0060.006

672 6730.0060.0060.0080.0080.0080.0080.0080.0080.0080.0080.0060.006

END MON

- SQOLIM

MON

- IFLW

- CONC

*** <PLS > Conc of QUAL in interflow outflow for each month (qty/ft3)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

102 104 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

105 106 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

1 07 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

108 109 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

110 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

111 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

112 113 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

121 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

122 124 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

125 126 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

127 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

128 129 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

130 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

131 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

132 133 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

141 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

142 144 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

145 146 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

147 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

148 149 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

150 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

151 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

152 153 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

161 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

162 164 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

165 166 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

167 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

168 169 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

170 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

171 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 178

Florida Department of Environmental Protection

172 173 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

181 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

182 184 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

185 186 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

187 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

188 189 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

190 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

191 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .0 15

192 193 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

201 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

202 204 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

205 206 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

207 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

208 209 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

210 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

211 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

212 213 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

221 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

222 224 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

225 226 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

227 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

228 229 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

230 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

231 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

232 233 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

241 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

242 244 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

245 246 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

247 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

248 249 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

250 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

251 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

252 253 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

261 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

262 264 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

265 266 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

267 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

268 269 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

270 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

271 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

272 273 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

281 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

282 284 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

285 286 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

287 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

288 289 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

290 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

291 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

292 293 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

301 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

302 304 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

30 5 306 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

307 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

308 309 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

310 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

311 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

312 313 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

***

501 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

502 504 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 179

Florida Department of Environmental Protection

505 506 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

507 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

508 509 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

510 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

511 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

512 513 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

521 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

522 524 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

525 526 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

527 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1

528 529 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

530 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

531 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

532 533 .01 .01 .01 .01 .01 .0 1 .01 .01 .01 .01 .01 .01

541 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

542 544 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

545 546 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

547 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

548 549 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

550 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

551 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

552 553 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

561 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

562 564 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

565 566 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

567 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

568 569 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

570 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

571 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

572 573 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

581 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

582 584 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

585 586 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

587 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

588 589 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

590 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

591 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

592 593 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

601 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0. 2 0.2 0.2 0.2 0.2

602 604 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

605 606 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

607 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

608 609 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

610 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

611 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

612 613 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

621 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

622 624 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

625 626 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

627 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

628 629 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

630 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

631 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

63 2 633 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

641 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

642 644 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

645 646 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

647 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

648 649 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

650 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

651 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 180

Florida Department of Environmental Protection

652 653 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

661 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

662 664 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

665 666 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

667 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

668 669 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

670 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

671 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

672 673 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

END MON

- IFLW

- CONC

MON

- GRND

- CONC

*** <PLS > Value at start of month for conc of QUAL in groundwater (qty/ft3)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

102 104 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

105 106 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

107 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

108 109 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

110 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

111 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

112 113 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

121 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

122 124 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

125 126 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

127 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

128 129 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

130 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

131 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

132 133 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

141 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

142 144 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

145 146 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

147 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

148 149 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

150 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

151 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

152 153 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

161 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

162 164 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

165 166 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

167 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

168 169 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

170 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

171 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

172 173 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

181 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

182 184 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

185 186 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

187 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

188 189 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

190 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .0 15

191 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

192 193 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

201 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

202 204 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

205 206 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

207 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

208 209 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

210 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

211 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 181

Florida Department of Environmental Protection

212 213 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

221 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

222 224 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

225 226 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

227 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

228 229 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

230 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

231 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

232 233 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 . 01 .01

241 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

242 244 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

245 246 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

247 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

248 249 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

250 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

251 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

252 253 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

261 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

262 264 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

265 266 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

267 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

268 269 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

270 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

271 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

272 273 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

281 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

282 284 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

285 286 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

287 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

288 289 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

290 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

291 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

292 293 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

301 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

302 304 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

305 306 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

307 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

308 309 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

310 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

311 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

312 313 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

***

501 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

502 504 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

505 506 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

507 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1

508 509 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

510 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

511 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

512 513 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

521 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

522 524 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

525 526 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 . 015

527 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

528 529 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

530 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

531 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

532 533 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

541 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

542 544 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

545 54 6 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 182

Florida Department of Environmental Protection

547 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

548 549 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

550 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

551 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

552 553 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

561 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

562 564 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

565 566 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

567 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

568 569 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

570 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

571 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

572 573 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

581 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

582 584 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

585 586 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

587 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

588 589 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

590 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

591 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

592 593 .01 .01 .01 .01 .01 .01 .01 . 01 .01 .01 .01 .01

601 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

602 604 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

605 606 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

607 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

608 609 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

610 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

611 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

612 613 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

621 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

622 624 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

625 626 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

627 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

628 629 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

630 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

631 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

632 633 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

641 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

642 644 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

645 646 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

647 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

648 649 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

650 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

651 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

652 653 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

661 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0 .2 0.2 0.2

662 664 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

665 666 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

667 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

668 669 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

670 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

671 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015

672 673 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

END MON

- GRND

- CONC

QUAL -PROPS

*** <PLS > Identifiers and Flags

*** x

- x QUALID QTID QSD VPFW VPFS QSO VQO QIFW VIQC QAGW VAQC

101 673ORTHO P LBS 0 0 0 1 1 1 3 1 3

END QUAL -PROPSFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 183

Florida Department of Environmental Protection

QUAL

- INPUT

*** Storage on surface and nonseasonal parameters

*** SQO POTFW POTFS ACQOP SQOLIM WSQOP IOQC AOQC

*** <PLS > qty/ac qty/ton qty/ton qty/ qty/ac in/hr qty/ft3 qty/ft3

*** x

- x ac.day

101 0.01 0. 0. 0.010 0.025 0.6 0. 0.

102 0.01 0. 0. 0.015 0.038 0.6 0. 0.

103 0.01 0. 0. 0.020 0.050 0.6 0. 0.

104 0.01 0. 0. 0.020 0.050 0.6 0. 0.

105 0.01 0. 0. 0.007 0.020 0.6 0. 0.

106 0.01 0. 0. 0.005 0.015 0.6 0. 0.

107 0.01 0. 0. 0.010 0.030 0.6 0. 0.

108 0.01 0. 0. 0.020 0.060 0.6 0. 0.

109 0.01 0. 0. 0.015 0.045 0.6 0. 0.

110 0.01 0. 0. 0.012 0.035 0.6 0. 0.

111 0.01 0. 0. 0.006 0.015 0.6 0. 0.

112 0.01 0. 0. 0.001 0.005 0.3 0. 0.

113 0.01 0. 0. 0.001 0.005 0.3 0. 0.

121 0.01 0. 0. 0.010 0.025 0.6 0. 0.

122 0.01 0. 0. 0.015 0.038 0.6 0. 0.

123 0.01 0. 0. 0.020 0.050 0.6 0. 0.

124 0.01 0. 0. 0.020 0.050 0.6 0. 0.

125 0.01 0. 0. 0.007 0.020 0.6 0. 0.

126 0.01 0. 0. 0.005 0.015 0.6 0. 0.

127 0.01 0. 0. 0.010 0.030 0.6 0. 0.

128 0.01 0. 0. 0.020 0.060 0.6 0. 0.

129 0.01 0. 0. 0.015 0.045 0.6 0. 0.

130 0.01 0. 0. 0.012 0.035 0.6 0. 0.

131 0.01 0. 0. 0.006 0.015 0.6 0. 0.

132 0.01 0. 0. 0.001 0.005 0.3 0. 0.

133 0.01 0. 0. 0.001 0.005 0.3 0. 0.

141 0.01 0. 0. 0.010 0.025 0.6 0. 0.

142 0.01 0. 0. 0.015 0.038 0.6 0. 0.

143 0.01 0. 0. 0.020 0.050 0.6 0. 0.

144 0.01 0. 0. 0.020 0.050 0.6 0. 0.

145 0.01 0. 0. 0.007 0.020 0.6 0. 0.

146 0.01 0. 0. 0.005 0.015 0.6 0. 0.

147 0.01 0. 0. 0.010 0.030 0.6 0. 0.

148 0.01 0. 0. 0.020 0.060 0.6 0. 0.

149 0.01 0. 0. 0.015 0.045 0.6 0. 0.

150 0.01 0. 0. 0.012 0.035 0.6 0. 0.

151 0.01 0. 0. 0.006 0.015 0.6 0. 0.

152 0.01 0. 0. 0.001 0.005 0.3 0. 0.

153 0.01 0. 0. 0.001 0.005 0.3 0. 0.

161 0.01 0. 0. 0.010 0.025 0.6 0. 0.

162 0.01 0. 0. 0.015 0.038 0.6 0. 0.

163 0.01 0. 0. 0.020 0.050 0.6 0. 0.

164 0.01 0. 0. 0.020 0.050 0.6 0. 0.

165 0.01 0. 0. 0.007 0.020 0.6 0. 0.

166 0.01 0. 0. 0.005 0.015 0.6 0. 0.

167 0.01 0. 0. 0.010 0.030 0.6 0. 0.

168 0.01 0. 0. 0.020 0.060 0.6 0. 0.

169 0.01 0. 0. 0.015 0.045 0.6 0. 0.

170 0.01 0. 0. 0.012 0.035 0.6 0. 0.

171 0.01 0. 0. 0.006 0.015 0.6 0. 0.

172 0.01 0. 0. 0.001 0.005 0.3 0. 0.

173 0.01 0. 0. 0.001 0.005 0.3 0. 0.

181 0.01 0. 0. 0.010 0.025 0.6 0. 0.

182 0.01 0. 0. 0.015 0.038 0.6 0. 0.

183 0.01 0. 0. 0.020 0.050 0 .6 0. 0.

184 0.01 0. 0. 0.020 0.050 0.6 0. 0.

185 0.01 0. 0. 0.007 0.020 0.6 0. 0.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 184

Florida Department of Environmental Protection

186 0.01 0. 0. 0.005 0.015 0.6 0. 0.

187 0.01 0. 0. 0.010 0.030 0.6 0. 0.

188 0.01 0. 0. 0.020 0.060 0.6 0. 0.

189 0.01 0. 0. 0.015 0.045 0.6 0. 0.

190 0.01 0. 0. 0.012 0.035 0.6 0. 0.

191 0.01 0. 0. 0.006 0.015 0.6 0. 0.

192 0.01 0. 0. 0.001 0.005 0.3 0. 0.

193 0.01 0. 0. 0.001 0.005 0.3 0. 0.

201 0.01 0. 0. 0.010 0.025 0.6 0. 0.

202 0.01 0. 0. 0.015 0.038 0.6 0. 0.

203 0.01 0. 0. 0.020 0.050 0.6 0. 0.

204 0.01 0. 0. 0.020 0.050 0.6 0. 0.

205 0.01 0. 0. 0.007 0.020 0.6 0. 0.

206 0.01 0. 0. 0.005 0.015 0.6 0. 0.

207 0.01 0. 0. 0.010 0.030 0.6 0. 0.

208 0.01 0. 0. 0.020 0.060 0.6 0. 0.

209 0.01 0. 0. 0.015 0.045 0.6 0. 0.

210 0.01 0. 0. 0.012 0.035 0.6 0. 0.

211 0.01 0. 0. 0.006 0.015 0.6 0. 0.

212 0.01 0. 0. 0.001 0.005 0.3 0. 0.

213 0.01 0. 0. 0.001 0.005 0.3 0. 0.

221 0.01 0. 0. 0.010 0.025 0.6 0. 0.

222 0.01 0. 0. 0.015 0.038 0.6 0. 0.

223 0.01 0. 0. 0.020 0.050 0.6 0. 0.

224 0.01 0. 0. 0.020 0.050 0.6 0. 0.

2 25 0.01 0. 0. 0.007 0.020 0.6 0. 0.

226 0.01 0. 0. 0.005 0.015 0.6 0. 0.

227 0.01 0. 0. 0.010 0.030 0.6 0. 0.

228 0.01 0. 0. 0.020 0.060 0.6 0. 0.

229 0.01 0. 0. 0.015 0.045 0.6 0. 0.

230 0.01 0. 0. 0.012 0.035 0.6 0. 0.

231 0.01 0. 0. 0.006 0.015 0.6 0 . 0.

232 0.01 0. 0. 0.001 0.005 0.3 0. 0.

233 0.01 0. 0. 0.001 0.005 0.3 0. 0.

241 0.01 0. 0. 0.010 0.025 0.6 0. 0.

242 0.01 0. 0. 0.015 0.038 0.6 0. 0.

243 0.01 0. 0. 0.020 0.050 0.6 0. 0.

244 0.01 0. 0. 0.020 0.050 0.6 0. 0.

245 0.01 0. 0. 0.007 0.020 0.6 0. 0.

246 0.01 0. 0. 0.005 0.015 0.6 0. 0.

247 0.01 0. 0. 0.010 0.030 0.6 0. 0.

248 0.01 0. 0. 0.020 0.060 0.6 0. 0.

249 0.01 0. 0. 0.015 0.045 0.6 0. 0.

250 0.01 0. 0. 0.012 0.035 0.6 0. 0.

251 0.01 0. 0. 0.006 0.015 0.6 0. 0.

252 0.01 0. 0. 0.001 0.005 0.3 0. 0.

253 0.01 0. 0. 0.001 0.005 0.3 0. 0.

261 0.01 0. 0. 0.010 0.025 0.6 0. 0.

262 0.01 0. 0. 0.015 0.038 0.6 0. 0.

263 0.01 0. 0. 0.020 0.050 0.6 0. 0.

264 0.01 0. 0. 0.020 0.050 0.6 0. 0.

265 0.01 0. 0. 0.007 0.020 0.6 0. 0.

266 0.01 0. 0. 0.005 0.015 0.6 0. 0.

267 0.01 0. 0. 0.010 0.030 0.6 0. 0.

268 0.01 0. 0. 0.020 0.060 0.6 0. 0.

269 0.01 0. 0. 0.015 0.045 0.6 0. 0.

270 0.01 0. 0. 0.012 0.035 0.6 0. 0.

271 0.01 0. 0. 0.006 0.015 0.6 0. 0.

272 0.01 0. 0. 0.001 0.005 0.3 0. 0.

273 0.01 0. 0. 0.001 0.005 0.3 0. 0.

281 0.01 0. 0. 0.010 0.025 0.6 0. 0.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 185

Florida Department of Environmental Protection

282 0.01 0. 0. 0.015 0.038 0.6 0. 0.

283 0.01 0. 0. 0.020 0.050 0.6 0. 0.

284 0.01 0. 0. 0.020 0.050 0.6 0. 0.

285 0.01 0. 0. 0.007 0.020 0.6 0. 0.

286 0.01 0. 0. 0.005 0.015 0.6 0. 0.

287 0.01 0. 0. 0.010 0.030 0.6 0. 0.

288 0.01 0. 0. 0.020 0.060 0.6 0. 0.

289 0.01 0. 0. 0.015 0.045 0.6 0. 0.

290 0.01 0. 0. 0.012 0.035 0.6 0. 0.

291 0.01 0. 0. 0.006 0.015 0.6 0. 0.

292 0.01 0. 0. 0.001 0.005 0.3 0. 0.

293 0.01 0. 0. 0.001 0.005 0.3 0. 0.

301 0.01 0. 0. 0.010 0.025 0.6 0. 0.

302 0.01 0. 0. 0.015 0.038 0.6 0. 0.

303 0.01 0. 0. 0.020 0.050 0.6 0. 0.

304 0.01 0. 0. 0.020 0.050 0.6 0. 0.

305 0.01 0. 0. 0.007 0.020 0.6 0. 0.

306 0.01 0. 0. 0.005 0.015 0.6 0. 0.

307 0.01 0. 0. 0.010 0.030 0.6 0. 0.

308 0.01 0. 0. 0.020 0.060 0.6 0. 0.

309 0.01 0. 0. 0.015 0.045 0.6 0. 0.

310 0.01 0. 0. 0.012 0.035 0.6 0. 0.

31 1 0.01 0. 0. 0.006 0.015 0.6 0. 0.

312 0.01 0. 0. 0.001 0.005 0.3 0. 0.

313 0.01 0. 0. 0.001 0.005 0.3 0. 0.

***

501 0.01 0. 0. 0.010 0.025 0.6 0. 0.

502 0.01 0. 0. 0.015 0.038 0.6 0. 0.

503 0.01 0. 0. 0.020 0.050 0.6 0. 0.

504 0.01 0. 0. 0.020 0.050 0.6 0. 0.

505 0.01 0. 0. 0.007 0.020 0.6 0. 0.

506 0.01 0. 0. 0.005 0.015 0.6 0. 0.

507 0.01 0. 0. 0.010 0.030 0.6 0. 0.

508 0.01 0. 0. 0.020 0.060 0.6 0. 0.

509 0.01 0. 0. 0.015 0.045 0.6 0. 0.

510 0.01 0. 0. 0.012 0.035 0.6 0. 0.

511 0.01 0. 0. 0.006 0.015 0.6 0. 0.

512 0.01 0. 0. 0.001 0.005 0.3 0. 0.

513 0.01 0. 0. 0.001 0.005 0.3 0. 0.

521 0.01 0. 0. 0.010 0.025 0.6 0. 0.

522 0.01 0. 0. 0.015 0.038 0.6 0. 0.

523 0.01 0. 0. 0.020 0.050 0.6 0. 0.

524 0.01 0. 0. 0.020 0.050 0.6 0. 0.

525 0.01 0. 0. 0.007 0.020 0.6 0. 0.

526 0.01 0. 0. 0.005 0.015 0.6 0. 0.

527 0.01 0. 0. 0.010 0.030 0.6 0. 0.

528 0.01 0. 0. 0.020 0.060 0.6 0. 0.

529 0.01 0. 0. 0.015 0.045 0.6 0. 0.

530 0.01 0. 0. 0.012 0.035 0.6 0. 0.

531 0.01 0. 0. 0.006 0.015 0.6 0. 0.

532 0.01 0. 0. 0.001 0.005 0.3 0. 0.

533 0.01 0. 0. 0.001 0.005 0.3 0. 0.

541 0.01 0. 0. 0.010 0.025 0.6 0. 0.

542 0.01 0. 0. 0.015 0.038 0.6 0. 0.

543 0.01 0. 0. 0.020 0.050 0.6 0. 0.

544 0.01 0. 0. 0.020 0.050 0.6 0. 0.

545 0.01 0. 0. 0.007 0.020 0.6 0. 0.

546 0.01 0. 0. 0.005 0.015 0.6 0. 0.

547 0.01 0. 0. 0.010 0.030 0.6 0. 0.

548 0.01 0. 0. 0.020 0.060 0.6 0. 0.

549 0.01 0. 0. 0.015 0.045 0.6 0. 0.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 186

Florida Department of Environmental Protection

550 0.01 0. 0. 0.012 0.035 0.6 0. 0.

551 0.01 0. 0. 0.006 0.015 0.6 0. 0.

552 0.01 0. 0. 0.001 0.005 0.3 0. 0.

553 0.01 0. 0. 0.001 0.005 0.3 0. 0.

561 0.01 0. 0. 0.010 0.025 0.6 0. 0.

562 0.01 0. 0. 0.015 0.038 0.6 0. 0.

563 0.01 0. 0. 0.020 0.050 0.6 0. 0.

564 0.01 0. 0. 0.020 0.050 0.6 0. 0.

565 0.01 0. 0. 0.007 0.020 0.6 0. 0.

566 0.01 0. 0. 0.005 0.015 0.6 0. 0.

567 0.01 0. 0. 0.010 0.030 0.6 0. 0.

568 0.01 0. 0. 0.020 0.060 0.6 0. 0.

569 0.01 0. 0. 0.015 0.045 0.6 0. 0.

570 0.01 0. 0. 0.012 0.035 0.6 0. 0.

571 0.01 0. 0. 0.006 0.015 0.6 0. 0.

572 0.01 0. 0. 0.001 0.005 0.3 0. 0.

573 0.01 0. 0. 0.001 0.005 0.3 0. 0.

581 0.01 0. 0. 0.010 0.025 0.6 0. 0.

582 0.01 0. 0. 0.015 0.038 0.6 0. 0.

583 0.01 0. 0. 0.020 0.050 0.6 0. 0.

584 0.01 0. 0. 0.020 0.050 0.6 0. 0.

585 0.01 0. 0. 0.007 0.020 0.6 0. 0.

586 0.01 0. 0. 0.005 0.015 0.6 0. 0.

587 0.01 0. 0. 0.010 0.030 0.6 0. 0.

588 0.01 0. 0. 0.020 0.060 0.6 0. 0.

589 0.01 0. 0. 0.015 0.045 0.6 0. 0.

590 0.01 0. 0. 0.012 0.035 0.6 0. 0.

591 0.01 0. 0. 0.006 0.015 0.6 0. 0.

592 0.01 0. 0. 0.001 0.005 0.3 0. 0.

593 0.01 0. 0. 0.001 0.005 0.3 0. 0.

601 0.01 0. 0. 0.010 0.025 0.6 0. 0.

602 0.01 0. 0. 0.015 0.038 0.6 0. 0.

603 0.01 0. 0. 0.020 0.050 0.6 0. 0.

604 0.01 0. 0. 0.020 0.050 0.6 0. 0.

605 0.01 0. 0. 0.007 0.020 0.6 0. 0.

606 0.01 0. 0. 0.005 0.015 0.6 0. 0.

607 0.01 0. 0. 0.010 0.030 0.6 0. 0.

608 0.01 0. 0. 0.020 0.060 0.6 0. 0.

609 0.01 0. 0. 0.015 0.045 0.6 0. 0.

610 0.01 0. 0. 0.012 0.035 0.6 0. 0.

611 0.01 0. 0. 0.006 0.015 0.6 0. 0.

612 0.01 0. 0. 0.001 0.005 0.3 0. 0.

613 0.01 0. 0. 0.001 0.005 0.3 0. 0.

621 0.01 0. 0. 0.010 0.025 0.6 0. 0.

622 0.01 0. 0. 0.015 0.038 0.6 0. 0.

623 0.01 0. 0. 0.020 0.050 0.6 0. 0.

624 0.01 0. 0. 0.020 0.050 0.6 0. 0.

625 0.01 0. 0. 0.007 0.020 0.6 0. 0.

626 0.01 0. 0. 0.005 0.015 0.6 0. 0.

627 0.01 0. 0. 0.010 0.030 0.6 0. 0.

628 0.01 0. 0. 0.020 0.060 0.6 0. 0.

629 0.01 0. 0. 0.015 0.045 0.6 0. 0.

630 0.01 0. 0. 0.012 0.035 0.6 0. 0.

631 0.01 0. 0. 0.006 0.015 0.6 0. 0.

632 0.01 0. 0. 0.001 0.005 0.3 0. 0.

633 0.01 0. 0. 0.001 0.005 0.3 0. 0.

641 0.01 0. 0. 0.010 0.025 0.6 0. 0.

642 0.01 0. 0. 0.015 0.038 0.6 0. 0.

643 0.01 0. 0. 0.020 0.050 0.6 0. 0.

644 0.01 0. 0. 0.020 0.050 0.6 0. 0.

645 0.01 0. 0. 0.007 0.020 0.6 0. 0

.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 187

Florida Department of Environmental Protection

646 0.01 0. 0. 0.005 0.015 0.6 0. 0.

647 0.01 0. 0. 0.010 0.030 0.6 0. 0.

648 0.01 0. 0. 0.020 0.060 0.6 0. 0.

649 0.01 0. 0. 0.015 0.045 0.6 0. 0.

650 0.01 0. 0. 0.012 0.035 0.6 0. 0.

651 0.01 0. 0. 0.006 0.015 0.6 0. 0.

652 0.01 0. 0. 0.001 0.005 0.3 0. 0.

653 0.01 0. 0. 0.001 0.005 0.3 0. 0.

661 0.01 0. 0. 0.010 0.025 0.6 0. 0.

662 0.01 0. 0. 0.015 0.038 0.6 0. 0.

663 0.01 0. 0. 0.020 0.050 0.6 0. 0.

664 0.01 0. 0. 0.020 0.050 0.6 0. 0.

665 0.01 0. 0. 0.007 0.020 0.6 0. 0.

666 0.01 0. 0. 0.005 0.015 0.6 0. 0.

667 0.01 0. 0. 0.010 0.030 0.6 0. 0.

668 0.01 0. 0. 0.020 0.060 0.6 0. 0.

669 0.01 0. 0. 0.015 0.045 0.6 0. 0.

6 70 0.01 0. 0. 0.012 0.035 0.6 0. 0.

671 0.01 0. 0. 0.006 0.015 0.6 0. 0.

672 0.01 0. 0. 0.001 0.005 0.3 0. 0.

673 0.01 0. 0. 0.001 0.005 0.3 0. 0.

END QUAL

- INPUT

MON

- ACCUM

*** <PLS > Value at start of each month for accum rate of QUALOF (lb/ac.day)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 0.0060.0060.0100.0150.0150 .0150.0150.0150.0150.0100.0060.006

102 0.0090.0090.0150.0250.0250.0250.0250.0250.0250.0150.0090.009

103 1040.0120.0120.0250.0400.0400.0400.0400.0400.0400.0250.0120.012

105 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

106 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

107 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

108 0.0150.015 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.030.0150.015

109 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

110 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

111 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

112 1130.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002

***

121 0.0060. 0060.0100.0150.0150.0150.0150.0150.0150.0100.0060.006

122 0.0090.0090.0150.0250.0250.0250.0250.0250.0250.0150.0090.009

123 1240.0120.0120.0250.0400.0400.0400.0400.0400.0400.0250.0120.012

125 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0 030.0020.002

126 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

127 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.03 0.03

128 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.03 0.03

129 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.03 0.03

130 0.0200.0200.0250.0300.0300.0300.0300.0300.0300.0250.0200.020

131 0.0200.0200.0250.0300.0300.0300.0300.0300.0300.0250.0200.020

132 1330.0200.0200.0250.0300.0300.0300.0300.0300.0300.0250.0200.020

* **

141 0.0060.0060.0100.0150.0150.0150.0150.0150.0150.0100.0060.006

142 0.0090.0090.0150.0250.0250.0250.0250.0250.0250.0150.0090.009

143 1440.0120.0120.0250.0400.0400.0400.0400.0400.0400.0250.0120.012

145 0.0020.0020.0030.0040.0040.0 040.0040.0040.0040.0030.0020.002

146 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

147 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

148 0.0150.015 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.030.0150.015

149 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

150 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

151 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

152 1530.0020.0020.0020.0020.0020.0020.0020.0020. 0020.0020.0020.002

***FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 188

Florida Department of Environmental Protection

161 0.0060.0060.0100.0150.0150.0150.0150.0150.0150.0100.0060.006

162 0.0090.0090.0150.0250.0250.0250.0250.0250.0250.0150.0090.009

163 1640.0120.0120.0250.0400.0400.0400.0400.0400.0400.0250.0120.012

165 0.0020.0 020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

166 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

167 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.03 0.03

168 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.03 0.03

169 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.03 0.03

170 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

171 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

172 1730.0020.0020.0020.0020. 0020.0020.0020.0020.0020.0020.0020.002

***

181 0.0060.0060.0100.0150.0150.0150.0150.0150.0150.0100.0060.006

182 0.0090.0090.0150.0250.0250.0250.0250.0250.0250.0150.0090.009

183 1840.0120.0120.0250.0400.0400.0400.0400.0400.0400.0250.0120.012

185 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

186 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

187 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

188 0.0150.015 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.030.0150.015

189 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

190 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

191 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

192 1930. 0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002

201 0.0060.0060.0100.0150.0150.0150.0150.0150.0150.0100.0060.006

202 0.0090.0090.0150.0250.0250.0250.0250.0250.0250.0150.0090.009

203 2040.0120.0120.0250.0400.0400.0400.0400.0400.0 400.0250.0120.012

205 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

206 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

207 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

208 0.0150.015 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.030.0150.015

209 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

210 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

211 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020. 002

212 2130.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002

221 0.0060.0060.0100.0150.0150.0150.0150.0150.0150.0100.0060.006

222 0.0090.0090.0150.0250.0250.0250.0250.0250.0250.0150.0090.009

223 2240.0120.0120.0250.0400.0400. 0400.0400.0400.0400.0250.0120.012

225 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

226 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

227 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

228 0.0150.015 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.030.0150.015

229 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

230 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

231 0.0020.0020.0030.0040.0040.0040.0040.0040 .0040.0030.0020.002

232 2330.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002

241 0.0060.0060.0100.0150.0150.0150.0150.0150.0150.0100.0060.006

242 0.0090.0090.0150.0250.0250.0250.0250.0250.0250.0150.0090.009

243 2440.0120.0120 .0250.0400.0400.0400.0400.0400.0400.0250.0120.012

245 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

246 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

247 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

248 0.0150.015 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.030.0150.015

249 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

250 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

251 0.0020.0020.0030.0040.004 0.0040.0040.0040.0040.0030.0020.002

252 2530.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002

261 0.0060.0060.0100.0150.0150.0150.0150.0150.0150.0100.0060.006

262 0.0090.0090.0150.0250.0250.0250.0250.0250.0250.0150.0090.009

263 2640.0120.0120.0250.0400.0400.0400.0400.0400.0400.0250.0120.012

265 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

266 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 189

Florida Department of Environmental Protection

267 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0 .03 0.03 0.02 0.01 0.01

268 0.0150.015 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.030.0150.015

269 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

270 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

271 0.0020.00 20.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

272 2730.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002

281 0.0060.0060.0100.0150.0150.0150.0150.0150.0150.0100.0060.006

282 0.0090.0090.0150.0250.0250.0250.0250.0250.0250.0150 .0090.009

283 2840.0120.0120.0250.0400.0400.0400.0400.0400.0400.0250.0120.012

285 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

286 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

287 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

288 0.0150.015 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.030.0150.015

289 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

290 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

2 91 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

292 2930.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002

301 0.0060.0060.0100.0150.0150.0150.0150.0150.0150.0100.0060.006

302 0.0090.0090.0150.0250.0250.0250.02 50.0250.0250.0150.0090.009

303 3040.0120.0120.0250.0400.0400.0400.0400.0400.0400.0250.0120.012

305 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

306 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

307 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

308 0.0150.015 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.030.0150.015

309 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

310 0.0020.0020.0030.0040.0040.0040.0040.0040.0040. 0030.0020.002

311 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

312 3130.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002

***

501 0.0060.0060.0100.0150.0150.0150.0150.0150.0150.0100.0060.006

502 0.0090.0090.01 50.0250.0250.0250.0250.0250.0250.0150.0090.009

503 5040.0120.0120.0250.0400.0400.0400.0400.0400.0400.0250.0120.012

505 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

506 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020 .002

507 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

508 0.0150.015 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.030.0150.015

509 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

510 0.0020.0020.0030.0040.0040.0 040.0040.0040.0040.0030.0020.002

511 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

512 5130.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002

521 0.0060.0060.0100.0150.0150.0150.0150.0150.0150.0100.0060.006

522 0.0090.0090.0150.0250.0250.0250.0250.0250.0250.0150.0090.009

523 5240.0120.0120.0250.0400.0400.0400.0400.0400.0400.0250.0120.012

525 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

526 0.0020.0020.0030.0040.0040.0040.0040.004 0.0040.0030.0020.002

527 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

528 0.0150.015 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.030.0150.015

529 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

530 0.0020.0020. 0030.0040.0040.0040.0040.0040.0040.0030.0020.002

531 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

532 5330.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002

541 0.0060.0060.0100.0150.0150.0150.0150.0150.0150.0100.00 60.006

542 0.0090.0090.0150.0250.0250.0250.0250.0250.0250.0150.0090.009

543 5440.0120.0120.0250.0400.0400.0400.0400.0400.0400.0250.0120.012

545 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

546 0.0020.0020.0030.0040.00 40.0040.0040.0040.0040.0030.0020.002

547 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

548 0.0150.015 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.030.0150.015

549 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

550 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

551 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 190

Florida Department of Environmental Protection

552 5530.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002

561 0.0060.0060.0100.0150.0150.0150.0150.0 150.0150.0100.0060.006

562 0.0090.0090.0150.0250.0250.0250.0250.0250.0250.0150.0090.009

563 5640.0120.0120.0250.0400.0400.0400.0400.0400.0400.0250.0120.012

565 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

566 0.0020.0 020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

567 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

568 0.0150.015 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.030.0150.015

569 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

570 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

571 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

572 5730.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002

581 0.0060.0060.0100.0150. 0150.0150.0150.0150.0150.0100.0060.006

582 0.0090.0090.0150.0250.0250.0250.0250.0250.0250.0150.0090.009

583 5840.0120.0120.0250.0400.0400.0400.0400.0400.0400.0250.0120.012

585 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

586 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

587 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

588 0.0150.015 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.030.0150.015

589 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

590 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

591 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

592 5930.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002

601 0.006 0.0060.0100.0150.0150.0150.0150.0150.0150.0100.0060.006

602 0.0090.0090.0150.0250.0250.0250.0250.0250.0250.0150.0090.009

603 6040.0120.0120.0250.0400.0400.0400.0400.0400.0400.0250.0120.012

605 0.0020.0020.0030.0040.0040.0040.0040.0040.0040 .0030.0020.002

606 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

607 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

608 0.0150.015 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.030.0150.015

609 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

610 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

611 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

612 6130.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002

621 0.0060.0060.0100.0150.0150.0150.0150.0150.0150.0100.0060.006

622 0.0090.0090.0150.0250.0250.0250.0250.0250.0250.0150.0090.009

623 6240.0120.0120.0250.0400.0400.0400.0400.0400.0400.0250.0120.012

625 0.0020.0020.0030.0040.0040.004 0.0040.0040.0040.0030.0020.002

626 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

627 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

628 0.0150.015 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.030.0150.015

629 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

630 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

631 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

632 6330.0020.0020.0020.0020.0020.0020.0020.0020.00 20.0020.0020.002

641 0.0060.0060.0100.0150.0150.0150.0150.0150.0150.0100.0060.006

642 0.0090.0090.0150.0250.0250.0250.0250.0250.0250.0150.0090.009

643 6440.0120.0120.0250.0400.0400.0400.0400.0400.0400.0250.0120.012

645 0.0020.0020.00 30.0040.0040.0040.0040.0040.0040.0030.0020.002

646 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

647 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

648 0.0150.015 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.030.0150. 015

649 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

650 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

651 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

652 6530.0020.0020.0020.0020.0020.0 020.0020.0020.0020.0020.0020.002

661 0.0060.0060.0100.0150.0150.0150.0150.0150.0150.0100.0060.006

662 0.0090.0090.0150.0250.0250.0250.0250.0250.0250.0150.0090.009

663 6640.0120.0120.0250.0400.0400.0400.0400.0400.0400.0250.0120.012

665 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

666 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 191

Florida Department of Environmental Protection

667 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

668 0.0150.015 0.03 0.05 0.05 0.05 0.05 0.05 0.05 0.030.0150.015

669 0.01 0.01 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.01 0.01

670 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

671 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

672 6730.0020.0020. 0020.0020.0020.0020.0020.0020.0020.0020.0020.002

END MON

- ACCUM

MON

- SQOLIM

*** <PLS > Value at start of month for limiting storage of QUALOF (lb/ac)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 0.0150.0150.0250.0380 .0380.0380.0380.0380.0380.0250.0150.015

102 0.0250.0250.0380.0630.0630.0630.0630.0630.0630.0380.0250.025

103 1040.0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0300.030

105 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

1 06 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

107 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

108 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.06 0.03

109 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

110 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

111 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

112 1130.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004

***

121 0.01 50.0150.0250.0380.0380.0380.0380.0380.0380.0250.0150.015

122 0.0250.0250.0380.0630.0630.0630.0630.0630.0630.0380.0250.025

123 1240.0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0300.030

125 0.0040.0040.0060.0080.0080.0080.0080.0080.0080. 0060.0040.004

126 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

127 0.06 0.06 0.12 0.20 0.20 0.20 0.20 0.20 0.20 0.12 0.06 0.06

128 0.06 0.06 0.12 0.20 0.20 0.20 0.20 0.20 0.20 0.12 0.06 0.06

129 0.06 0.06 0.12 0.20 0.20 0.20 0.20 0.20 0.20 0.12 0.06 0.06

130 0.0400.0400.0500.0600.0600.0600.0600.0600.0600.0500.0400.040

131 0.0400.0400.0500.0600.0600.0600.0600.0600.0600.0500.0400.040

132 1330.0400.0400.0500.0600.0600.0600.0600.0600.0600.0500.0400.040

* **

141 0.0150.0150.0250.0380.0380.0380.0380.0380.0380.0250.0150.015

142 0.0250.0250.0380.0630.0630.0630.0630.0630.0630.0380.0250.025

143 1440.0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0300.030

145 0.0040.0040.0060.0080.0080.008 0.0080.0080.0080.0060.0040.004

146 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

147 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

148 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.06 0.03

149 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

150 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

151 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

152 1530.0040.0040.0040.0040.0040.0040.0040.0040.004 0.0040.0040.004

***

161 0.0150.0150.0250.0380.0380.0380.0380.0380.0380.0250.0150.015

162 0.0250.0250.0380.0630.0630.0630.0630.0630.0630.0380.0250.025

163 1640.0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0300.030

165 0.0040.0040.0 060.0080.0080.0080.0080.0080.0080.0060.0040.004

166 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

167 0.06 0.06 0.12 0.20 0.20 0.20 0.20 0.20 0.20 0.12 0.06 0.06

168 0.06 0.06 0.12 0.20 0.20 0.20 0.20 0.20 0.20 0.12 0.06 0.06

169 0.06 0.06 0.12 0.20 0.20 0.20 0.20 0.20 0.20 0.12 0.06 0.06

170 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

171 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

172 1730.0040.0040.0040.0040.0040.0 040.0040.0040.0040.0040.0040.004

***

181 0.0150.0150.0250.0380.0380.0380.0380.0380.0380.0250.0150.015

182 0.0250.0250.0380.0630.0630.0630.0630.0630.0630.0380.0250.025

183 1840.0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0300.030FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 192

Florida Department of Environmental Protection

185 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

186 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

187 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

188 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.1 0 0.10 0.06 0.06 0.03

189 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

190 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

191 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

192 1930.0040.0040 .0040.0040.0040.0040.0040.0040.0040.0040.0040.004

201 0.0150.0150.0250.0380.0380.0380.0380.0380.0380.0250.0150.015

202 0.0250.0250.0380.0630.0630.0630.0630.0630.0630.0380.0250.025

203 2040.0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0 300.030

205 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

206 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

207 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

208 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.06 0.03

209 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

210 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

211 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

212 2130.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004

221 0.0150.0150.0250.0380.0380.0380.0380.0380.0380.0250.0150.015

222 0.0250.0250.0380.0630.0630.0630.0630.0630.0630.0380.0250.025

223 2240.0300.0300.0630.1000.1000.1000.1000.100 0.1000.0630.0300.030

225 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

226 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

227 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

228 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.06 0.03

229 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

230 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

231 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.004 0.004

232 2330.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004

241 0.0150.0150.0250.0380.0380.0380.0380.0380.0380.0250.0150.015

242 0.0250.0250.0380.0630.0630.0630.0630.0630.0630.0380.0250.025

243 2440.0300.0300.0630.1000.1000. 1000.1000.1000.1000.0630.0300.030

245 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

246 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

247 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

248 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.06 0.03

249 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

250 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

251 0.0040.0040.0060.0080.0080.0080.0080.0080. 0080.0060.0040.004

252 2530.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004

261 0.0150.0150.0250.0380.0380.0380.0380.0380.0380.0250.0150.015

262 0.0250.0250.0380.0630.0630.0630.0630.0630.0630.0380.0250.025

263 2640.0300.0300.06 30.1000.1000.1000.1000.1000.1000.0630.0300.030

265 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

266 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

267 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0 .02

268 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.06 0.03

269 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

270 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

271 0.0040.0040.0060.0080.0080.00 80.0080.0080.0080.0060.0040.004

272 2730.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004

281 0.0150.0150.0250.0380.0380.0380.0380.0380.0380.0250.0150.015

282 0.0250.0250.0380.0630.0630.0630.0630.0630.0630.0380.0250.025

283 2840 .0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0300.030

285 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

286 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

287 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

288 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.06 0.03

289 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

290 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 193

Florida Department of Environmental Protection

291 0.0040.0040.0060 .0080.0080.0080.0080.0080.0080.0060.0040.004

292 2930.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004

301 0.0150.0150.0250.0380.0380.0380.0380.0380.0380.0250.0150.015

302 0.0250.0250.0380.0630.0630.0630.0630.0630.0630.0380.0250.0 25

303 3040.0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0300.030

305 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

306 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

307 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

308 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.06 0.03

309 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

310 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

311 0. 0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

312 3130.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004

***

501 0.0150.0150.0250.0380.0380.0380.0380.0380.0380.0250.0150.015

502 0.0250.0250.0380.0630.0630.0630.0630.0630 .0630.0380.0250.025

503 5040.0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0300.030

505 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

506 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

507 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

508 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.06 0.03

509 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

510 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040 .004

511 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

512 5130.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004

521 0.0150.0150.0250.0380.0380.0380.0380.0380.0380.0250.0150.015

522 0.0250.0250.0380.0630.0630.0 630.0630.0630.0630.0380.0250.025

523 5240.0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0300.030

525 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

526 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

527 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

528 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.06 0.03

529 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

530 0.0040.0040.0060.0080.0080.0080.0080.0080.0 080.0060.0040.004

531 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

532 5330.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004

541 0.0150.0150.0250.0380.0380.0380.0380.0380.0380.0250.0150.015

542 0.0250.0250.038 0.0630.0630.0630.0630.0630.0630.0380.0250.025

543 5440.0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0300.030

545 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

546 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.0 04

547 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

548 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.06 0.03

549 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

550 0.0040.0040.0060.0080.0080.008 0.0080.0080.0080.0060.0040.004

551 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

552 5530.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004

561 0.0150.0150.0250.0380.0380.0380.0380.0380.0380.0250.0150.015

562 0. 0250.0250.0380.0630.0630.0630.0630.0630.0630.0380.0250.025

563 5640.0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0300.030

565 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

566 0.0040.0040.0060.0080.0080.0080.0080.0080.008 0.0060.0040.004

567 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

568 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.06 0.03

569 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

570 0.0040.0040.0060. 0080.0080.0080.0080.0080.0080.0060.0040.004

571 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

572 5730.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004

581 0.0150.0150.0250.0380.0380.0380.0380.0380.0380.0250.0150.015

582 0.0250.0250.0380.0630.0630.0630.0630.0630.0630.0380.0250.025

583 5840.0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0300.030FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 194

Florida Department of Environmental Protection

585 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

586 0.0040.0040.0060.0080.0080.0080. 0080.0080.0080.0060.0040.004

587 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

588 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.06 0.03

589 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

590 0.00 40.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

591 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

592 5930.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004

601 0.0150.0150.0250.0380.0380.0380.0380 .0380.0380.0250.0150.015

602 0.0250.0250.0380.0630.0630.0630.0630.0630.0630.0380.0250.025

603 6040.0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0300.030

605 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

606 0.0040.0 040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

607 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

608 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.06 0.03

609 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

610 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

611 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

612 6130.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004

621 0.0150.0150.0250.0380.0 380.0380.0380.0380.0380.0250.0150.015

622 0.0250.0250.0380.0630.0630.0630.0630.0630.0630.0380.0250.025

623 6240.0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0300.030

625 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

626 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

627 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

628 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.06 0.03

629 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0. 06 0.06 0.04 0.02 0.02

630 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

631 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

632 6330.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004

641 0.0150.015 0.0250.0380.0380.0380.0380.0380.0380.0250.0150.015

642 0.0250.0250.0380.0630.0630.0630.0630.0630.0630.0380.0250.025

643 6440.0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0300.030

645 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0 040.004

646 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

647 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

648 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.06 0.03

649 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

650 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

651 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

652 6530.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004

661 0.0150.0150.0250.0380.0380.0380.0380.0380.0380.0250.0150.015

662 0.0250.0250.0380.0630.0630.0630.0630.0630.0630.0380.0250.025

663 6640.0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0300.030

665 0.0040.0040.0060.0080.0080.0080.0080.008 0.0080.0060.0040.004

666 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

667 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

668 0.03 0.03 0.06 0.10 0.10 0.10 0.10 0.10 0.10 0.06 0.06 0.03

669 0.02 0.02 0.04 0.06 0.06 0.06 0.06 0.06 0.06 0.04 0.02 0.02

670 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

671 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

672 6730.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004 0.004

END MON

- SQOLIM

MON

- IFLW

- CONC

*** <PLS > Conc of QUAL in interflow outflow for each month (qty/ft3)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

1 02 104 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

105 106 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

107 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 195

Florida Department of Environmental Protection

108 109 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

110 111 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

112 113 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

***

121 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

122 124 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

125 126 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

127 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24

128 129 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0 .24 0.24 0.24

130 131 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

132 133 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

***

141 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

142 144 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

145 146 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

147 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

148 149 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0. 18

150 151 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

152 153 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

***

161 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

162 164 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

165 166 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

167 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24

168 169 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24

170 1 71 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

172 173 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

***

181 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

182 184 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

185 186 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

187 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

188 189 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

190 191 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

192 193 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

201 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

202 204 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

205 206 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

207 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

208 209 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

210 211 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

212 213 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

221 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

222 224 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

225 226 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

227 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

228 229 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

230 231 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

232 233 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

241 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

242 244 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

245 246 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

247 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

248 249 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

250 251 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

252 253 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

261 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

262 264 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

265 266 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

267 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

268 269 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 196

Florida Department of Environmental Protection

270 271 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

272 273 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

281 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

282 284 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

285 286 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

287 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

288 289 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

290 291 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

292 293 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

301 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

302 304 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

305 306 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

307 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

308 309 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

310 311 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

312 313 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

***

501 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

502 504 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

505 506 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

50 7 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

508 509 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

510 511 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

512 513 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

521 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

522 524 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

525 526 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

527 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

528 529 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

530 531 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

532 533 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

541 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

542 544 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

545 546 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

547 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

548 549 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

550 551 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

552 553 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

561 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

562 564 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

565 566 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

567 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.0 8 0.08 0.08 0.08 0.08

568 569 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

570 571 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

572 573 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

581 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

582 584 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

585 586 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

587 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

588 589 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

590 591 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

592 593 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

601 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

602 604 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

605 606 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

607 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

608 609 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

610 611 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

612 613 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

621 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 197

Florida Department of Environmental Protection

622 624 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

625 626 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

627 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

628 629 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

630 631 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

632 633 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

641 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

642 644 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

645 646 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

647 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

648 649 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

650 651 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

652 653 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

661 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

662 66 4 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

665 666 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

667 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

668 669 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

670 671 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

672 673 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

END MON

- IFLW

- CONC

MON

- GRND

- CONC

*** <PLS > Value at start of month for conc of QUAL in groundwater (qty/ft3)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

102 104 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

105 106 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

107 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

108 109 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

110 111 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

112 113 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

***

121 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

122 124 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

125 126 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

127 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24

128 129 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24

130 131 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

132 133 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

***

141 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

142 144 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

145 146 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

147 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

148 149 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

150 151 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

152 153 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

***

161 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

162 164 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

165 166 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

167 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24

168 169 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24

170 171 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

172 173 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

***

181 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

182 184 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

185 186 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0 .01

187 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

188 189 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 198

Florida Department of Environmental Protection

190 191 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

192 193 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

201 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

202 204 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

205 206 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

207 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

208 209 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

210 211 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

212 213 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

221 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

222 224 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

225 226 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

227 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

228 229 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

230 231 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

232 233 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0. 01

241 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

242 244 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

245 246 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

247 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

248 249 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

250 251 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

252 253 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

261 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

262 264 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

265 266 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

267 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

268 269 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

270 271 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

272 273 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

281 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

282 284 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

285 286 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

287 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

288 289 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

290 291 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

292 293 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

301 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

302 304 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

305 306 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

307 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

308 309 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

310 311 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

312 313 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

***

501 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

502 504 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

505 506 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

507 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

508 509 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

510 511 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

512 513 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

521 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0 .08

522 524 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

525 526 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

527 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

528 529 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

530 531 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

532 533 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

541 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 199

Florida Department of Environmental Protection

542 544 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

545 546 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

547 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

548 549 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

550 551 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

552 553 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

561 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

562 564 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

565 566 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

567 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

568 569 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.1 8

570 571 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

572 573 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

581 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

582 584 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

585 586 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

587 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

588 589 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

590 591 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

592 593 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

601 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

602 604 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

605 606 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

607 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

608 609 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

610 611 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

612 613 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

621 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

622 624 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

625 626 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

627 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

628 629 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

630 631 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

632 633 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

641 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

642 644 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

645 646 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

647 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

648 649 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

650 651 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0 .01 0.01 0.01

652 653 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

661 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

662 664 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

665 666 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

667 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08

668 669 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

670 671 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

672 673 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01

END MON

- GRND

- CONC

QUAL -PROPS

*** <PLS > Identifiers and Flags

*** x

- x QUALID QTID QSD VPFW VPFS QSO VQO QIFW VIQC QAGW VAQC

101 673BOD LBS 0 0 0 1 1 1 3 1 3

END QUAL -PROPS

QUAL

- INPUT

*** Storage on surface and nonseasonal parameters

*** SQO POTFW POTFS ACQOP SQOLIM WSQOP IOQC AOQC

*** <PLS > qty/ac qty/ton qty/ton qty/ qty/ac in/hr qty/ft3 qty/ft3

*** x

- x ac.dayFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 200

Florida Department of Environmental Protection

101 0.01 0. 0. 0.010 0.025 0.6 0. 0.

102 0.01 0. 0. 0.015 0.038 0.6 0. 0.

103 0.01 0. 0. 0.020 0.050 0.6 0. 0.

104 0.01 0. 0. 0.020 0.050 0.6 0. 0.

105 0.01 0. 0. 0.007 0.020 0.6 0. 0.

106 0.01 0. 0. 0.005 0.015 0.6 0. 0.

107 0.01 0. 0. 0.010 0.030 0.6 0. 0.

108 0.01 0. 0. 0.020 0.060 0.6 0. 0.

109 0.01 0. 0. 0.015 0.045 0.6 0. 0.

110 0.01 0. 0. 0.012 0.035 0.6 0. 0.

111 0.01 0. 0. 0.006 0.015 0.6 0. 0.

112 0.01 0. 0. 0.001 0.005 0.3 0. 0.

113 0.01 0. 0. 0.001 0.005 0.3 0. 0.

121 0.01 0. 0. 0.010 0.025 0.6 0. 0.

122 0.01 0. 0. 0.015 0.038 0.6 0. 0.

123 0.01 0. 0. 0.020 0.050 0.6 0. 0.

124 0.01 0. 0. 0.020 0.050 0.6 0. 0.

125 0.01 0. 0. 0.007 0.020 0.6 0. 0.

126 0.01 0. 0. 0.005 0.015 0.6 0. 0.

127 0.01 0. 0. 0.010 0.030 0.6 0. 0.

128 0.01 0. 0. 0.020 0.060 0.6 0. 0.

129 0.01 0. 0. 0.015 0.045 0.6 0. 0.

130 0.01 0. 0. 0.012 0.035 0.6 0. 0.

131 0.01 0. 0. 0.006 0.015 0.6 0. 0.

132 0.01 0. 0. 0.001 0.005 0.3 0. 0.

133 0.01 0. 0. 0.001 0.005 0.3 0. 0.

141 0.01 0. 0. 0.010 0.025 0.6 0. 0.

142 0.01 0. 0. 0.015 0.038 0.6 0. 0.

143 0.01 0. 0. 0.020 0.050 0.6 0. 0.

144 0.01 0. 0. 0.020 0.050 0.6 0. 0.

145 0.01 0. 0. 0.007 0.020 0.6 0. 0.

146 0.01 0. 0. 0.005 0.015 0.6 0. 0.

147 0.01 0. 0. 0.010 0.030 0.6 0. 0.

148 0.01 0. 0. 0.020 0.060 0.6 0. 0.

149 0.01 0. 0. 0.015 0.045 0.6 0. 0.

150 0.01 0. 0. 0.012 0.035 0.6 0. 0.

151 0.01 0. 0. 0.006 0.015 0 .6 0. 0.

152 0.01 0. 0. 0.001 0.005 0.3 0. 0.

153 0.01 0. 0. 0.001 0.005 0.3 0. 0.

161 0.01 0. 0. 0.010 0.025 0.6 0. 0.

162 0.01 0. 0. 0.015 0.038 0.6 0. 0.

163 0.01 0. 0. 0.020 0.050 0.6 0. 0.

164 0.01 0. 0. 0.020 0.050 0.6 0. 0.

165 0.01 0. 0. 0.007 0.020 0.6 0. 0.

166 0.01 0. 0. 0.005 0.015 0.6 0. 0.

167 0.01 0. 0. 0.010 0.030 0.6 0. 0.

168 0.01 0. 0. 0.020 0.060 0.6 0. 0.

169 0.01 0. 0. 0.015 0.045 0.6 0. 0.

170 0.01 0. 0. 0.012 0.035 0.6 0. 0.

171 0.01 0. 0. 0.006 0.015 0.6 0. 0.

172 0.01 0. 0. 0.001 0.005 0.3 0. 0.

173 0.01 0. 0. 0.001 0.005 0.3 0. 0.

181 0.01 0. 0. 0.010 0.025 0.6 0. 0.

182 0.01 0. 0. 0.015 0.038 0.6 0. 0.

183 0.01 0. 0. 0.020 0.050 0.6 0. 0.

184 0.01 0. 0. 0.020 0.050 0.6 0. 0.

185 0.01 0. 0. 0.007 0.020 0.6 0. 0.

186 0.01 0. 0. 0.005 0.015 0.6 0. 0.

187 0.01 0. 0. 0.010 0.030 0.6 0. 0.

188 0.01 0. 0. 0.020 0.060 0.6 0. 0.

189 0.01 0. 0. 0.015 0.045 0.6 0. 0.

190 0.01 0. 0. 0.012 0.035 0.6 0. 0.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 201

Florida Department of Environmental Protection

191 0.01 0. 0. 0.006 0.015 0.6 0. 0.

192 0.01 0. 0. 0.001 0.005 0.3 0. 0.

19 3 0.01 0. 0. 0.001 0.005 0.3 0. 0.

201 0.01 0. 0. 0.010 0.025 0.6 0. 0.

202 0.01 0. 0. 0.015 0.038 0.6 0. 0.

203 0.01 0. 0. 0.020 0.050 0.6 0. 0.

204 0.01 0. 0. 0.020 0.050 0.6 0. 0.

205 0.01 0. 0. 0.007 0.020 0.6 0. 0.

206 0.01 0. 0. 0.005 0.015 0.6 0 . 0.

207 0.01 0. 0. 0.010 0.030 0.6 0. 0.

208 0.01 0. 0. 0.020 0.060 0.6 0. 0.

209 0.01 0. 0. 0.015 0.045 0.6 0. 0.

210 0.01 0. 0. 0.012 0.035 0.6 0. 0.

211 0.01 0. 0. 0.006 0.015 0.6 0. 0.

212 0.01 0. 0. 0.001 0.005 0.3 0. 0.

213 0.01 0. 0. 0.001 0.005 0.3 0. 0.

221 0.01 0. 0. 0.010 0.025 0.6 0. 0.

222 0.01 0. 0. 0.015 0.038 0.6 0. 0.

223 0.01 0. 0. 0.020 0.050 0.6 0. 0.

224 0.01 0. 0. 0.020 0.050 0.6 0. 0.

225 0.01 0. 0. 0.007 0.020 0.6 0. 0.

226 0.01 0. 0. 0.005 0.015 0.6 0. 0.

227 0.01 0. 0. 0.010 0.030 0.6 0. 0.

228 0.01 0. 0. 0.020 0.060 0.6 0. 0.

229 0.01 0. 0. 0.015 0.045 0.6 0. 0.

230 0.01 0. 0. 0.012 0.035 0.6 0. 0.

231 0.01 0. 0. 0.006 0.015 0.6 0. 0.

232 0.01 0. 0. 0.001 0.005 0.3 0. 0.

233 0.01 0. 0. 0.001 0.005 0.3 0. 0.

241 0.01 0. 0. 0.010 0.025 0.6 0. 0.

242 0.01 0. 0. 0.015 0.038 0.6 0. 0.

243 0.01 0. 0. 0.020 0.050 0.6 0. 0.

244 0.01 0. 0. 0.020 0.050 0.6 0. 0.

245 0.01 0. 0. 0.007 0.020 0.6 0. 0.

246 0.01 0. 0. 0.005 0.015 0.6 0. 0.

247 0.01 0. 0. 0.010 0.030 0.6 0. 0.

248 0.01 0. 0. 0.020 0.060 0.6 0. 0.

249 0.01 0. 0. 0.015 0.045 0.6 0. 0.

250 0.01 0. 0. 0.012 0.035 0.6 0. 0.

251 0.01 0. 0. 0.006 0.015 0.6 0. 0.

252 0.01 0. 0. 0.001 0.005 0.3 0. 0.

253 0.01 0. 0. 0.001 0.005 0.3 0. 0.

261 0.01 0. 0. 0.010 0.025 0.6 0. 0.

262 0.01 0. 0. 0.015 0.038 0.6 0. 0.

263 0.01 0. 0. 0.020 0.050 0.6 0. 0.

264 0.01 0. 0. 0.020 0.050 0.6 0. 0.

265 0.01 0. 0. 0.007 0.020 0.6 0. 0.

266 0.01 0. 0. 0.005 0.015 0.6 0. 0.

267 0.01 0. 0. 0.010 0.030 0.6 0. 0.

268 0.01 0. 0. 0.020 0.060 0.6 0. 0.

269 0.01 0. 0. 0.015 0.045 0.6 0. 0.

270 0.01 0. 0. 0.012 0.035 0.6 0. 0.

271 0.01 0. 0. 0.006 0.015 0.6 0. 0.

272 0.01 0. 0. 0.001 0.005 0.3 0. 0.

273 0.01 0. 0. 0.001 0.005 0.3 0. 0.

281 0.01 0. 0. 0.010 0.025 0.6 0. 0.

282 0.01 0. 0. 0.015 0.038 0.6 0. 0.

283 0.01 0. 0. 0.020 0.050 0.6 0. 0.

284 0.01 0. 0. 0.020 0.050 0.6 0. 0.

285 0.01 0. 0. 0.007 0.020 0.6 0. 0.

286 0.01 0. 0. 0.005 0.015 0.6 0. 0.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 202

Florida Department of Environmental Protection

287 0.01 0. 0. 0.010 0.030 0.6 0. 0.

288 0.01 0. 0. 0.020 0.060 0.6 0. 0.

289 0.01 0. 0. 0.015 0.045 0.6 0. 0.

290 0.01 0. 0. 0.012 0.035 0.6 0. 0.

291 0.01 0. 0. 0.006 0.015 0.6 0. 0.

292 0.01 0. 0. 0.001 0.005 0.3 0. 0.

293 0.01 0. 0. 0.001 0.005 0.3 0. 0.

301 0.01 0. 0. 0.010 0.025 0.6 0. 0.

302 0.01 0. 0. 0.015 0.038 0.6 0. 0.

303 0.01 0. 0. 0.020 0.050 0.6 0. 0.

304 0.01 0. 0. 0.020 0.050 0.6 0. 0.

305 0.01 0. 0. 0.007 0.020 0.6 0. 0.

306 0.01 0. 0. 0.005 0.015 0.6 0. 0.

307 0.01 0. 0. 0.010 0.030 0.6 0. 0.

308 0.01 0. 0. 0.020 0.060 0.6 0. 0.

309 0.01 0. 0. 0.015 0.045 0.6 0. 0.

310 0.01 0. 0. 0.012 0.035 0.6 0. 0.

311 0.01 0. 0. 0.006 0.015 0.6 0. 0.

312 0.01 0. 0. 0.001 0.005 0.3 0. 0.

313 0.01 0. 0. 0.001 0.005 0.3 0. 0.

***

501 0.01 0. 0. 0.010 0.025 0.6 0. 0.

502 0.01 0. 0. 0.015 0.038 0.6 0. 0.

503 0.01 0. 0. 0.020 0.050 0.6 0. 0.

504 0.01 0. 0. 0.020 0.050 0.6 0. 0.

505 0.01 0. 0. 0.007 0.020 0.6 0. 0.

506 0.01 0. 0. 0.005 0.015 0.6 0. 0.

507 0.01 0. 0. 0.010 0.030 0.6 0. 0.

508 0.01 0. 0. 0.020 0.060 0.6 0. 0.

509 0.01 0. 0. 0.015 0.045 0.6 0. 0.

510 0.01 0. 0. 0.012 0.035 0.6 0. 0.

511 0.01 0. 0. 0.006 0.015 0.6 0. 0.

512 0.01 0. 0. 0.001 0.005 0.3 0. 0.

513 0.01 0. 0. 0.001 0.005 0.3 0. 0.

521 0.01 0. 0. 0.010 0.025 0.6 0. 0.

522 0.01 0. 0. 0.015 0.038 0.6 0. 0.

523 0.01 0. 0. 0.020 0.050 0.6 0. 0.

524 0.01 0. 0. 0.020 0.050 0.6 0. 0.

525 0.01 0. 0. 0.007 0.020 0.6 0. 0.

526 0.01 0. 0. 0.005 0.015 0.6 0. 0.

527 0.01 0. 0. 0.010 0.030 0.6 0. 0.

528 0.01 0. 0. 0.020 0.060 0.6 0. 0.

529 0.01 0. 0. 0.015 0.045 0.6 0. 0.

530 0.01 0. 0. 0.012 0.035 0.6 0. 0.

531 0.01 0. 0. 0.006 0.015 0.6 0. 0.

532 0.01 0. 0. 0.001 0.005 0.3 0. 0.

533 0.01 0. 0. 0.001 0.005 0.3 0. 0.

541 0.01 0. 0. 0.010 0.025 0.6 0. 0.

542 0.01 0. 0. 0.015 0.038 0.6 0. 0.

543 0.01 0. 0. 0.020 0.050 0.6 0. 0.

544 0.01 0. 0. 0.020 0.050 0.6 0. 0.

545 0.01 0. 0. 0.007 0.020 0.6 0. 0.

546 0.01 0. 0. 0.005 0.015 0.6 0. 0.

547 0.01 0. 0. 0.010 0.030 0.6 0. 0.

548 0.01 0. 0. 0.020 0.060 0.6 0. 0.

549 0.01 0. 0. 0.015 0.045 0.6 0. 0.

550 0.01 0. 0. 0.012 0.035 0.6 0. 0.

551 0.01 0. 0. 0.006 0.015 0.6 0. 0.

552 0.01 0. 0. 0.001 0.005 0.3 0. 0.

553 0.01 0. 0. 0.001 0.005 0.3 0. 0.

561 0.01 0. 0. 0.010 0.025 0.6 0. 0.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 203

Florida Department of Environmental Protection

562 0.01 0. 0. 0.015 0.038 0.6 0. 0.

563 0.01 0. 0. 0.020 0.050 0.6 0. 0.

564 0.01 0. 0. 0.020 0.050 0.6 0. 0.

565 0.01 0. 0. 0.007 0.020 0.6 0. 0.

566 0.01 0. 0. 0.005 0.015 0.6 0. 0.

567 0.01 0. 0. 0.010 0.030 0.6 0. 0.

568 0.01 0. 0. 0.020 0.060 0.6 0. 0.

569 0.01 0. 0. 0.015 0.045 0.6 0. 0.

570 0.01 0. 0. 0.012 0.035 0.6 0. 0.

571 0.01 0. 0. 0.006 0.015 0.6 0. 0.

572 0.01 0. 0. 0.001 0.005 0.3 0. 0.

573 0.01 0. 0. 0.001 0.005 0.3 0. 0.

581 0.01 0. 0. 0.010 0.025 0.6 0. 0.

582 0.01 0. 0. 0.015 0.038 0.6 0. 0.

583 0.01 0. 0. 0.020 0.050 0.6 0. 0.

584 0.01 0. 0. 0.020 0.050 0.6 0. 0.

585 0.01 0. 0. 0.007 0.020 0.6 0. 0.

586 0.01 0. 0. 0.005 0.015 0.6 0. 0.

587 0.01 0. 0. 0.010 0.030 0.6 0. 0.

588 0.01 0. 0. 0.020 0.060 0.6 0. 0.

589 0.01 0. 0. 0.015 0.045 0.6 0. 0.

590 0.01 0. 0. 0.012 0.035 0.6 0. 0.

591 0.01 0. 0. 0.006 0.015 0.6 0. 0.

592 0.01 0. 0. 0.001 0.005 0.3 0. 0.

593 0.01 0. 0. 0.001 0.005 0.3 0. 0.

601 0.01 0. 0. 0.010 0.025 0.6 0. 0.

602 0.01 0. 0. 0.015 0.038 0.6 0. 0.

603 0.01 0. 0. 0.020 0.050 0.6 0. 0.

604 0.01 0. 0. 0.020 0.050 0.6 0. 0.

605 0.01 0. 0. 0.007 0.020 0.6 0. 0.

606 0.01 0. 0. 0.005 0.015 0.6 0. 0.

607 0.01 0. 0. 0.010 0.030 0.6 0. 0.

608 0.01 0. 0. 0.020 0.060 0.6 0. 0.

609 0.01 0. 0. 0.015 0.045 0.6 0. 0.

610 0.01 0. 0. 0.012 0.035 0.6 0. 0.

611 0.01 0. 0. 0.006 0.015 0.6 0. 0.

612 0.01 0. 0. 0.001 0.005 0.3 0. 0.

613 0.01 0. 0. 0.001 0.005 0.3 0. 0

. 621 0.01 0. 0. 0.010 0.025 0.6 0. 0.

622 0.01 0. 0. 0.015 0.038 0.6 0. 0.

623 0.01 0. 0. 0.020 0.050 0.6 0. 0.

624 0.01 0. 0. 0.020 0.050 0.6 0. 0.

625 0.01 0. 0. 0.007 0.020 0.6 0. 0.

626 0.01 0. 0. 0.005 0.015 0.6 0. 0.

627 0.01 0. 0. 0.010 0.030 0.6 0. 0.

628 0.01 0. 0. 0.020 0.060 0.6 0. 0.

629 0.01 0. 0. 0.015 0.045 0.6 0. 0.

630 0.01 0. 0. 0.012 0.035 0.6 0. 0.

631 0.01 0. 0. 0.006 0.015 0.6 0. 0.

632 0.01 0. 0. 0.001 0.005 0.3 0. 0.

633 0.01 0. 0. 0.001 0.005 0.3 0. 0.

641 0.01 0. 0. 0.010 0.025 0.6 0. 0.

642 0.01 0. 0. 0.015 0.038 0.6 0. 0.

643 0.01 0. 0. 0.020 0.050 0.6 0. 0.

644 0.01 0. 0. 0.020 0.050 0.6 0. 0.

6 45 0.01 0. 0. 0.007 0.020 0.6 0. 0.

646 0.01 0. 0. 0.005 0.015 0.6 0. 0.

647 0.01 0. 0. 0.010 0.030 0.6 0. 0.

648 0.01 0. 0. 0.020 0.060 0.6 0. 0.

649 0.01 0. 0. 0.015 0.045 0.6 0. 0.

650 0.01 0. 0. 0.012 0.035 0.6 0. 0.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 204

Florida Department of Environmental Protection

651 0.01 0. 0. 0.006 0.015 0.6 0 . 0.

652 0.01 0. 0. 0.001 0.005 0.3 0. 0.

653 0.01 0. 0. 0.001 0.005 0.3 0. 0.

661 0.01 0. 0. 0.010 0.025 0.6 0. 0.

662 0.01 0. 0. 0.015 0.038 0.6 0. 0.

663 0.01 0. 0. 0.020 0.050 0.6 0. 0.

664 0.01 0. 0. 0.020 0.050 0.6 0. 0.

665 0.01 0. 0. 0.007 0.020 0.6 0. 0.

666 0.01 0. 0. 0.005 0.015 0.6 0. 0.

667 0.01 0. 0. 0.010 0.030 0.6 0. 0.

668 0.01 0. 0. 0.020 0.060 0.6 0. 0.

669 0.01 0. 0. 0.015 0.045 0.6 0. 0.

670 0.01 0. 0. 0.012 0.035 0.6 0. 0.

671 0.01 0. 0. 0.006 0.015 0.6 0. 0.

672 0.01 0. 0. 0.001 0.005 0.3 0. 0.

673 0.01 0. 0. 0.001 0.005 0.3 0. 0.

END QUAL

- INPUT

MON

- ACCUM

*** <PLS > Value at start of each month for accum rate of QUALOF (lb/ac.day)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 0.32 0.32 0.35 0.4 0.4 0.4 0.4 0.4 0.4 0.35 0.32 0.32

102 0.56 0.56 0.62 0.7 0.7 0.7 0.7 0.7 0.7 0.62 0.56 0.56

103 104 0.8 0.8 0.9 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.8 0.8

105 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.1 0.1

106 0.05 0.050.0750.0750.0750.0750.0750.0750.0750.075 0.05 0.05

107 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

108 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

109 0.4 0.4 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.6 0.4 0.4

110 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

111 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

112 1130.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

121 0.32 0.32 0.35 0.4 0.4 0.4 0.4 0.4 0.4 0.35 0.32 0.32

122 0.56 0.56 0.62 0.7 0.7 0.7 0.7 0.7 0.7 0.62 0.56 0.56

123 124 0.8 0.8 0.9 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.8 0.8

125 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.1 0.1

126 0.05 0.050.0750.0750.0750.0750.0750.0750.0750.075 0.05 0.05

127 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

128 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

129 0.4 0.4 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.6 0.4 0.4

130 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

131 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

132 1330.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

141 0.32 0.32 0.35 0.4 0.4 0.4 0.4 0.4 0.4 0.35 0.32 0.32

142 0.56 0.56 0.62 0.7 0.7 0.7 0.7 0.7 0.7 0.62 0.56 0.56

143 144 0.8 0.8 0.9 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.8 0.8

145 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.1 0.1

146 0.05 0.050.0750.0750.0750.0750.0750.0750.0750.075 0.05 0.05

147 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

148 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

149 0.4 0.4 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.6 0.4 0.4

150 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

151 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0 750.075

152 1530.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

161 0.32 0.32 0.35 0.4 0.4 0.4 0.4 0.4 0.4 0.35 0.32 0.32

162 0.56 0.56 0.62 0.7 0.7 0.7 0.7 0.7 0.7 0.62 0.56 0.56

163 164 0.8 0.8 0.9 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.8 0.8

165 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.1 0.1

166 0.05 0.050.0750.0750.0750.0750.0750.0750.0750.075 0.05 0.05

167 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

168 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

169 0.4 0.4 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.6 0.4 0.4FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 2 05

Florida Department of Environmental Protection

170 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

171 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

172 1730.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

181 0.32 0.32 0.35 0.4 0.4 0.4 0.4 0.4 0.4 0.35 0.32 0.32

182 0.56 0.56 0.62 0.7 0.7 0.7 0.7 0.7 0.7 0.62 0.56 0.56

183 184 0.8 0.8 0.9 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.8 0.8

185 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.1 0.1

186 0.05 0.050.0750.0750.0750.0750.0750.0750.0750.075 0.05 0.05

187 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

188 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

189 0.4 0.4 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.6 0.4 0.4

190 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

191 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

192 1930.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

201 0.32 0.32 0.35 0.4 0.4 0.4 0.4 0.4 0.4 0.35 0.32 0.32

202 0.56 0.56 0.62 0.7 0.7 0.7 0.7 0.7 0.7 0.62 0.56 0.56

20 3 204 0.8 0.8 0.9 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.8 0.8

205 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.1 0.1

206 0.05 0.050.0750.0750.0750.0750.0750.0750.0750.075 0.05 0.05

207 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

208 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

209 0.4 0.4 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.6 0.4 0.4

210 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

211 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

212 2130.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

221 0.32 0.32 0.35 0.4 0.4 0.4 0.4 0.4 0.4 0.35 0.32 0.32

222 0.56 0.56 0.62 0.7 0.7 0.7 0.7 0.7 0.7 0.62 0.56 0.56

223 224 0.8 0.8 0.9 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.8 0.8

225 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.1 0.1

226 0.05 0.050.0750.0750.0750.0750.0750.0750.0750.075 0.05 0.05

227 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

228 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

229 0.4 0.4 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.6 0.4 0.4

230 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

231 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

232 2330.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

241 0.32 0.32 0.35 0.4 0.4 0.4 0.4 0.4 0.4 0.35 0.32 0.32

242 0.56 0.56 0.62 0.7 0.7 0.7 0.7 0.7 0.7 0.62 0.56 0.56

243 244 0.8 0.8 0.9 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.8 0.8

245 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.1 0.1

246 0.05 0.050.0750.0750.0750.0750.0750.0750.0750.075 0.05 0.05

247 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

248 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

249 0.4 0.4 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.6 0.4 0.4

250 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.07 50.075

251 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

252 2530.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

261 0.32 0.32 0.35 0.4 0.4 0.4 0.4 0.4 0.4 0.35 0.32 0.32

262 0.56 0.56 0.62 0.7 0.7 0.7 0.7 0.7 0.7 0.62 0.56 0.56

263 264 0.8 0.8 0.9 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.8 0.8

265 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.1 0.1

266 0.05 0.050.0750.0750.0750.0750.0750.0750.0750.075 0.05 0.05

267 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

268 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

269 0.4 0.4 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.6 0.4 0.4

270 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

271 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

272 2730.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

281 0.32 0.32 0.35 0.4 0.4 0.4 0.4 0.4 0.4 0.35 0.32 0.32

282 0.56 0.56 0.62 0.7 0.7 0.7 0.7 0.7 0.7 0.62 0.56 0.56

283 284 0.8 0.8 0.9 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.8 0.8FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 206

Florida Department of Environmental Protection

285 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.1 0.1

286 0.05 0.050.0750.0750.0750.0750.0750.0750.0750.075 0.05 0.05

287 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

288 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

289 0.4 0.4 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.6 0.4 0.4

290 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

291 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

292 2930.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

301 0.32 0.32 0.35 0.4 0.4 0.4 0.4 0.4 0.4 0.35 0.32 0.32

302 0.56 0.56 0.62 0.7 0.7 0.7 0.7 0.7 0.7 0.62 0.56 0.56

303 304 0.8 0.8 0.9 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.8 0.8

305 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.1 0.1

306 0.05 0.050.0750.0750.0750.0750.0750.0750.0750.075 0.05 0.05

307 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

308 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

309 0.4 0.4 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.6 0.4 0.4

310 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

311 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

312 3130.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

***

501 0.32 0.32 0.35 0.4 0.4 0.4 0.4 0.4 0.4 0.35 0.32 0.32

502 0.56 0.56 0.62 0.7 0.7 0.7 0.7 0.7 0.7 0.62 0.56 0.56

503 504 0.8 0.8 0.9 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.8 0.8

505 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.1 0.1

506 0.05 0.050.0750.0750.0750.0750.0750.0750.0750.075 0.05 0.05

507 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

508 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

509 0.4 0.4 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.6 0.4 0.4

5 10 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

511 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

512 5130.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

521 0.32 0.32 0.35 0.4 0.4 0.4 0.4 0.4 0.4 0.35 0.32 0.32

522 0.56 0.56 0.62 0.7 0.7 0.7 0.7 0.7 0.7 0.62 0.56 0.56

523 524 0.8 0.8 0.9 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.8 0.8

525 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.1 0.1

526 0.05 0.050.0750.0750.0750.0750.0750.0750.0750.075 0.05 0.05

527 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

528 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

529 0.4 0.4 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0. 6 0.4 0.4

530 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

531 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

532 5330.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

541 0.32 0.32 0.35 0.4 0.4 0.4 0.4 0.4 0.4 0.35 0.32 0.32

542 0.56 0.56 0.62 0.7 0.7 0.7 0.7 0.7 0.7 0.62 0.56 0.56

543 544 0.8 0.8 0.9 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.8 0.8

545 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.1 0.1

546 0.05 0.050.0750.0750.0750.0750.0750.0750.0750.075 0.05 0.05

547 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

548 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

549 0.4 0.4 0.6 0.8 0.8 0.8 0. 8 0.8 0.8 0.6 0.4 0.4

550 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

551 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

552 5530.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

561 0.32 0.32 0.35 0.4 0.4 0.4 0.4 0.4 0.4 0.35 0.32 0.32

562 0.56 0.56 0.62 0.7 0.7 0.7 0.7 0.7 0.7 0.62 0.56 0.56

563 564 0.8 0.8 0.9 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.8 0.8

565 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.1 0.1

566 0.05 0.050.0750.0750.0750.0750.0750.0750.0750.075 0.05 0.05

567 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

568 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

569 0.4 0.4 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.6 0.4 0.4FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 207

Florida Department of Environmental Protection

570 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

571 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

572 5730.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

581 0.32 0.32 0.35 0.4 0.4 0.4 0.4 0.4 0.4 0.35 0.32 0.32

582 0.56 0.56 0.62 0.7 0.7 0.7 0.7 0.7 0.7 0.62 0.56 0.56

583 584 0.8 0.8 0.9 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.8 0.8

585 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.1 0.1

586 0.05 0.050.0750.0750.0750.0750.0750.0750.0750.075 0.05 0.05

587 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

588 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

589 0.4 0.4 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.6 0.4 0.4

590 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

591 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

592 5930.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

601 0.32 0.32 0.35 0.4 0.4 0.4 0.4 0.4 0.4 0.35 0.32 0.32

602 0.56 0.56 0.62 0.7 0.7 0.7 0.7 0.7 0.7 0.62 0.56 0.56

603 604 0.8 0.8 0.9 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.8 0.8

605 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.1 0.1

606 0.05 0.050.0750.0750.0750.0750.0750.0750.0750.075 0.05 0.05

607 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

608 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

609 0.4 0.4 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.6 0.4 0.4

610 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

611 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

612 6130.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

621 0.32 0.32 0.35 0.4 0.4 0.4 0.4 0.4 0.4 0.35 0.32 0.32

622 0.56 0.56 0.62 0.7 0.7 0.7 0.7 0.7 0.7 0.62 0.56 0.56

623 624 0.8 0.8 0.9 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.8 0.8

625 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.1 0.1

626 0.05 0.050.0750.0750.0750.0750.0750.0750.0750.075 0.05 0.05

627 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

628 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

629 0.4 0.4 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.6 0.4 0.4

630 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

631 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

632 6330.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

641 0.32 0.32 0.35 0.4 0.4 0.4 0.4 0.4 0.4 0.35 0.32 0.32

642 0.56 0.56 0.62 0.7 0.7 0.7 0.7 0.7 0.7 0.62 0.56 0.56

643 644 0.8 0.8 0.9 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.8 0.8

645 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.1 0.1

646 0.05 0.050.0750.0750.0750.0750.0750.0750.0750.075 0.05 0.05

647 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

648 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

649 0.4 0.4 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.6 0.4 0.4

650 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

651 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

652 6530.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

661 0.32 0.32 0.35 0.4 0.4 0.4 0.4 0.4 0.4 0.35 0.32 0.32

662 0.56 0.56 0.62 0.7 0.7 0.7 0.7 0.7 0.7 0.62 0.56 0.56

663 664 0.8 0.8 0.9 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.8 0.8

665 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.1 0.1

666 0.05 0.050.0750.0750.0750.0750.0750.0750.0750.075 0.05 0.05

667 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

668 1.0 1.0 1.2 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.0 1.0

669 0.4 0.4 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.6 0.4 0.4

670 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.0 75

671 0.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

672 6730.0750.075 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.0750.075

END MON

- ACCUM

MON

- SQOLIMFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 208

Florida Department of Environmental Protection *** <PLS > Value at start of month for limiting storage of QUALOF (lb/ac)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 3.2 3.2 3.5 4.0 4.0 4.0 4.0 4.0 4.0 3.5 3.2 3.2

102 5.6 5.6 6.2 7.0 7.0 7.0 7.0 7.0 7.0 6.2 5.6 5.6

103 104 8.0 8.0 9.0 10.0 10.0 10.0 10.0 10.0 10.0 9.0 8.0 8.0

105 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.0 1.0

106 0.5 0.5 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.5 0.5

107 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

108 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

109 4.0 4.0 6.0 8.0 8.0 8.0 8.0 8.0 8.0 6.0 4.0 4.0

110 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

111 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

112 113 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

121 3.2 3.2 3.5 4.0 4.0 4.0 4.0 4.0 4.0 3.5 3.2 3.2

122 5.6 5.6 6.2 7.0 7.0 7.0 7.0 7.0 7.0 6.2 5.6 5.6

123 124 8.0 8.0 9.0 10.0 10.0 10.0 10.0 10.0 10.0 9.0 8.0 8.0

125 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.0 1.0

126 0.5 0.5 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.5 0.5

127 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

12 8 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

129 4.0 4.0 6.0 8.0 8.0 8.0 8.0 8.0 8.0 6.0 4.0 4.0

130 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

131 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

132 133 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

141 3.2 3.2 3.5 4.0 4.0 4.0 4.0 4.0 4.0 3.5 3.2 3.2

142 5.6 5.6 6.2 7.0 7.0 7.0 7.0 7.0 7.0 6.2 5.6 5.6

143 144 8.0 8.0 9.0 10.0 10.0 10.0 10.0 10.0 10.0 9.0 8.0 8.0

145 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.0 1.0

146 0.5 0.5 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.5 0.5

147 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

148 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

149 4.0 4.0 6.0 8.0 8.0 8.0 8.0 8.0 8.0 6.0 4.0 4.0

150 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

151 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

152 153 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

161 3.2 3.2 3.5 4.0 4.0 4.0 4.0 4.0 4.0 3.5 3.2 3.2

162 5.6 5.6 6.2 7.0 7.0 7.0 7.0 7.0 7.0 6.2 5.6 5.6

163 164 8.0 8.0 9.0 10.0 10.0 10.0 10.0 10.0 10.0 9.0 8.0 8.0

165 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.0 1.0

166 0.5 0.5 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.5 0.5

167 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

168 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

169 4.0 4.0 6.0 8.0 8.0 8.0 8.0 8.0 8.0 6.0 4.0 4.0

170 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

171 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

172 173 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

181 3.2 3.2 3.5 4.0 4.0 4.0 4.0 4.0 4.0 3.5 3.2 3.2

182 5.6 5.6 6.2 7.0 7.0 7.0 7.0 7.0 7.0 6.2 5.6 5.6

183 184 8.0 8.0 9.0 10.0 10.0 10.0 10.0 10.0 10.0 9.0 8.0 8.0

185 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.0 1.0

186 0.5 0.5 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.5 0.5

187 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

188 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

189 4.0 4.0 6.0 8.0 8.0 8.0 8.0 8.0 8.0 6.0 4.0 4.0

190 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

191 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

192 193 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

201 3.2 3.2 3.5 4.0 4.0 4.0 4.0 4.0 4.0 3.5 3.2 3.2

202 5.6 5.6 6.2 7.0 7.0 7.0 7.0 7.0 7.0 6.2 5.6 5.6

203 204 8.0 8.0 9.0 10.0 10.0 10.0 10.0 10.0 10.0 9.0 8.0 8.0

205 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.0 1.0FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 209

Florida Department of Environmental Protection

206 0.5 0.5 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.5 0.5

207 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

208 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

209 4.0 4.0 6.0 8.0 8.0 8.0 8.0 8.0 8.0 6.0 4.0 4.0

210 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

211 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

212 213 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

221 3.2 3.2 3.5 4.0 4.0 4.0 4.0 4.0 4.0 3.5 3.2 3.2

222 5.6 5.6 6.2 7.0 7.0 7.0 7.0 7.0 7.0 6.2 5.6 5.6

223 224 8.0 8.0 9.0 10.0 10.0 10.0 10.0 10.0 10.0 9.0 8.0 8.0

225 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.0 1.0

226 0.5 0.5 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.5 0.5

22 7 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

228 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

229 4.0 4.0 6.0 8.0 8.0 8.0 8.0 8.0 8.0 6.0 4.0 4.0

230 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

231 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

232 233 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

241 3.2 3.2 3.5 4.0 4.0 4.0 4.0 4.0 4.0 3.5 3.2 3.2

242 5.6 5.6 6.2 7.0 7.0 7.0 7.0 7.0 7.0 6.2 5.6 5.6

243 244 8.0 8.0 9.0 10.0 10.0 10.0 10.0 10.0 10.0 9.0 8.0 8.0

245 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.0 1.0

246 0.5 0.5 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.5 0.5

247 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

248 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

249 4.0 4.0 6.0 8.0 8.0 8.0 8.0 8.0 8.0 6.0 4.0 4.0

250 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

251 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

252 253 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

261 3.2 3.2 3.5 4.0 4.0 4.0 4.0 4.0 4.0 3.5 3.2 3.2

262 5.6 5.6 6.2 7.0 7.0 7.0 7.0 7.0 7.0 6.2 5.6 5.6

263 264 8.0 8.0 9.0 10.0 10.0 10.0 10.0 10.0 10.0 9.0 8.0 8.0

265 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.0 1.0

266 0.5 0.5 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.5 0.5

267 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

268 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

269 4.0 4.0 6.0 8.0 8.0 8.0 8.0 8.0 8.0 6.0 4.0 4.0

270 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

271 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

272 273 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

281 3.2 3.2 3.5 4.0 4.0 4.0 4.0 4.0 4.0 3.5 3.2 3.2

282 5.6 5.6 6.2 7.0 7.0 7.0 7.0 7.0 7.0 6.2 5.6 5.6

283 284 8.0 8.0 9.0 10.0 10.0 10.0 10.0 10.0 10.0 9.0 8.0 8.0

285 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.0 1.0

286 0.5 0.5 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.5 0.5

287 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

288 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

289 4.0 4.0 6.0 8.0 8.0 8.0 8.0 8.0 8.0 6.0 4.0 4.0

290 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

291 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

292 293 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

301 3.2 3.2 3.5 4.0 4.0 4.0 4.0 4.0 4.0 3.5 3.2 3.2

302 5.6 5.6 6.2 7.0 7.0 7.0 7.0 7.0 7.0 6.2 5.6 5.6

303 304 8.0 8.0 9.0 10.0 10.0 10.0 10.0 10.0 10.0 9.0 8.0 8.0

305 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.0 1.0

306 0.5 0.5 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.5 0.5

307 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

308 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

309 4.0 4.0 6.0 8.0 8.0 8.0 8.0 8.0 8.0 6.0 4.0 4.0

310 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

311 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 210

Florida Department of Environmental Protection

312 313 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

***

501 3.2 3.2 3.5 4.0 4.0 4.0 4.0 4.0 4.0 3.5 3.2 3.2

502 5.6 5.6 6.2 7.0 7.0 7.0 7.0 7.0 7.0 6.2 5.6 5.6

503 504 8.0 8.0 9.0 10.0 10.0 10.0 10.0 10.0 10.0 9.0 8.0 8.0

505 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.0 1.0

506 0.5 0.5 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.5 0.5

507 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

508 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

509 4.0 4.0 6.0 8.0 8.0 8.0 8 .0 8.0 8.0 6.0 4.0 4.0

510 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

511 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

512 513 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

521 3.2 3.2 3.5 4.0 4.0 4.0 4.0 4.0 4.0 3.5 3.2 3.2

522 5.6 5.6 6.2 7.0 7.0 7.0 7.0 7.0 7.0 6.2 5.6 5.6

523 524 8.0 8.0 9.0 10.0 10.0 10.0 10.0 10.0 10.0 9.0 8.0 8.0

525 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1 .5 1.0 1.0

526 0.5 0.5 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.5 0.5

527 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

528 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

529 4.0 4.0 6.0 8.0 8.0 8.0 8.0 8.0 8.0 6.0 4.0 4.0

530 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

531 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

532 533 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

541 3.2 3.2 3.5 4.0 4.0 4.0 4.0 4.0 4.0 3.5 3.2 3.2

542 5.6 5.6 6.2 7.0 7.0 7.0 7.0 7.0 7.0 6.2 5.6 5.6

543 544 8.0 8.0 9.0 10.0 10.0 10.0 10.0 10.0 10.0 9.0 8.0 8.0

545 1.0 1.0 1.5 1.5 1.5 1.5 1. 5 1.5 1.5 1.5 1.0 1.0

546 0.5 0.5 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.5 0.5

547 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

548 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

549 4.0 4.0 6.0 8.0 8.0 8.0 8.0 8.0 8.0 6.0 4.0 4.0

550 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

551 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

552 553 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1 .0 0.75 0.75

561 3.2 3.2 3.5 4.0 4.0 4.0 4.0 4.0 4.0 3.5 3.2 3.2

562 5.6 5.6 6.2 7.0 7.0 7.0 7.0 7.0 7.0 6.2 5.6 5.6

563 564 8.0 8.0 9.0 10.0 10.0 10.0 10.0 10.0 10.0 9.0 8.0 8.0

565 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.0 1.0

566 0.5 0.5 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.5 0.5

567 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

568 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

569 4.0 4.0 6.0 8.0 8.0 8.0 8.0 8.0 8.0 6.0 4.0 4.0

570 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

571 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

572 573 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

581 3.2 3.2 3.5 4.0 4.0 4.0 4.0 4.0 4.0 3.5 3.2 3.2

582 5.6 5.6 6.2 7.0 7.0 7.0 7.0 7.0 7.0 6.2 5.6 5.6

583 584 8.0 8.0 9.0 10.0 10.0 10.0 10.0 10.0 10.0 9.0 8.0 8.0

585 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.0 1.0

586 0.5 0.5 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.5 0.5

587 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

588 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

589 4.0 4.0 6.0 8.0 8.0 8.0 8.0 8.0 8.0 6.0 4.0 4.0

590 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

591 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

592 593 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

601 3.2 3.2 3.5 4.0 4.0 4.0 4.0 4.0 4.0 3.5 3.2 3.2

602 5.6 5.6 6.2 7.0 7.0 7.0 7.0 7.0 7.0 6.2 5.6 5.6

603 604 8.0 8.0 9.0 10.0 10.0 10.0 10.0 10.0 10.0 9.0 8.0 8.0

605 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.0 1.0FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 211

Florida Department of Environmental Protection

606 0.5 0.5 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.5 0.5

607 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

608 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

609 4.0 4.0 6.0 8.0 8.0 8.0 8.0 8.0 8.0 6.0 4.0 4.0

610 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

611 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

612 613 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

621 3.2 3.2 3.5 4.0 4.0 4.0 4.0 4.0 4.0 3.5 3.2 3.2

622 5.6 5.6 6.2 7.0 7.0 7.0 7.0 7.0 7.0 6. 2 5.6 5.6

623 624 8.0 8.0 9.0 10.0 10.0 10.0 10.0 10.0 10.0 9.0 8.0 8.0

625 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.0 1.0

626 0.5 0.5 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.5 0.5

627 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

628 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

629 4.0 4.0 6.0 8.0 8.0 8.0 8.0 8.0 8.0 6.0 4.0 4.0

630 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

631 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

632 633 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

641 3.2 3.2 3.5 4.0 4.0 4.0 4.0 4.0 4.0 3.5 3.2 3.2

642 5.6 5.6 6.2 7.0 7.0 7.0 7.0 7.0 7.0 6.2 5.6 5.6

643 644 8.0 8.0 9.0 10.0 10.0 10.0 10.0 10.0 10.0 9.0 8.0 8.0

645 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.0 1.0

646 0.5 0.5 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.5 0.5

647 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

648 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

649 4.0 4.0 6.0 8.0 8.0 8.0 8.0 8.0 8.0 6.0 4.0 4.0

650 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

651 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

652 653 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

661 3.2 3.2 3.5 4.0 4.0 4.0 4.0 4.0 4.0 3.5 3.2 3.2

662 5.6 5.6 6.2 7.0 7.0 7.0 7.0 7.0 7.0 6.2 5.6 5.6

663 664 8.0 8.0 9.0 10.0 10.0 10.0 10.0 10.0 10.0 9.0 8.0 8.0

665 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.0 1.0

666 0.5 0.5 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.5 0.5

667 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

668 10.0 10.0 12.0 15.0 15.0 15.0 15.0 15.0 15.0 12.0 10.0 10.0

669 4.0 4.0 6.0 8.0 8.0 8.0 8.0 8.0 8.0 6.0 4.0 4.0

670 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

671 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

672 673 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.75 0.75

END MON

- SQOLIM

MON

- IFLW

- CONC

*** <PLS > Conc of QUAL in interflow outflow for each month (qty/ft3)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

102 104 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

105 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

106 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

107 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

108 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10

. 109 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

110 111 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

112 113 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

121 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

122 124 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

125 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

126 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

127 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

128 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

129 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

130 131 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 212

Florida Department of Environmental Protection

132 133 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

141 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

142 144 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

145 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

146 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

147 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

148 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

149 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

150 151 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

152 153 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

161 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

162 164 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

165 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

166 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

167 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

168 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

169 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

170 171 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

172 173 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

181 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

182 184 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

185 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

186 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

187 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

188 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

189 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

190 191 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

192 193 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

201 5. 5. 5. 5. 5. 5. 5 . 5. 5. 5. 5. 5.

202 204 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

205 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

206 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

207 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

208 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

209 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

210 211 2. 2. 2. 2. 2. 2. 2. 2. 2. 2 . 2. 2.

212 213 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

221 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

222 224 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

225 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

226 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

227 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

228 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

2 29 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

230 231 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

232 233 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

241 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

242 244 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

245 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

246 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

247 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

248 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

249 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

250 251 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

252 253 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

261 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

262 264 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

265 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

266 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

267 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

268 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 213

Florida Department of Environmental Protection

269 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

270 271 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

272 273 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

281 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

282 284 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

285 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

286 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

287 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

288 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

289 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

290 291 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

292 293 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

301 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

302 304 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

305 2. 2. 2. 2. 2 . 2. 2. 2. 2. 2. 2. 2.

306 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

307 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

308 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

309 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

310 311 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

312 313 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

***

501 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

502 504 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

505 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

506 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

507 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

508 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

509 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

510 511 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

512 513 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

521 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

522 524 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

525 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

526 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

527 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

528 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

52 9 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

530 531 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

532 533 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

541 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

542 544 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

545 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

546 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

547 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

548 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

549 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

550 551 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

552 553 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

561 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

562 564 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

565 2. 2. 2. 2. 2 . 2. 2. 2. 2. 2. 2. 2.

566 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

567 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

568 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

569 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

570 571 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

572 573 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

581 5. 5. 5. 5. 5. 5. 5. 5 . 5. 5. 5. 5.

582 584 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

585 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 214

Florida Department of Environmental Protection

586 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

587 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

588 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

589 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

590 591 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2 . 2.

592 593 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

601 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

602 604 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

605 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

606 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

607 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

608 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

609 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

610 611 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

612 613 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

621 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

622 624 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

625 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

626 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

627 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

628 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

629 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

630 631 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

632 633 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

641 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

642 644 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

645 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

646 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

647 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

648 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

649 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

650 651 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

652 653 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

661 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

662 664 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

665 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

666 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

667 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

668 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

669 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

670 671 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

672 673 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

END MON

- IFLW

- CONC

MON

- GRND

- CONC

*** <PLS > Value at start of month for conc of QUAL in groundwater (qty/ft3)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

102 104 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

105 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

106 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

107 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

108 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

109 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

110 111 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

112 113 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

121 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

122 124 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

125 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

126 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

127 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 215

Florida Department of Environmental Protection

128 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

129 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

130 131 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

132 133 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

141 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

142 144 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

145 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

146 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

147 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

148 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

149 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

150 151 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

152 153 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

161 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

162 164 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

165 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

166 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

167 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

168 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

169 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

170 171 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

172 173 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

181 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

182 184 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

185 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

186 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

187 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

188 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

189 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

190 191 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

192 193 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

201 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

202 204 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

205 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

206 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

207 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

208 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

209 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

210 211 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

212 213 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

221 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

222 224 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

225 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

226 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

227 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

228 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

229 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

230 231 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

232 233 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

241 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

242 244 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

245 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

246 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

247 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

248 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

249 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

250 251 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

252 253 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

261 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

262 264 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

265 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 216

Florida Department of Environmental Protection

266 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

267 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

268 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

269 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

270 271 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

272 273 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

281 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

282 284 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

285 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

286 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

287 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

288 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

289 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

290 291 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

292 293 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

3 01 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

302 304 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

305 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

306 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

307 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

308 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

309 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

310 311 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

312 313 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

***

501 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

502 504 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

505 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

506 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

507 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

508 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

509 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

510 511 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

512 513 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

521 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

522 524 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

525 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

526 2. 2. 2. 2. 2. 2. 2 . 2. 2. 2. 2. 2.

527 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

528 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

529 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

530 531 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

532 533 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

541 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

542 544 7. 7. 7. 7. 7. 7. 7. 7. 7. 7 . 7. 7.

545 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

546 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

547 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

548 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

549 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

550 551 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

552 553 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

5 61 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

562 564 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

565 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

566 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

567 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

568 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

569 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

570 571 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

572 573 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 217

Florida Department of Environmental Protection

581 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

582 584 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

585 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

586 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

587 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

588 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

589 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

590 591 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

592 593 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

60 1 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

602 604 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

605 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

606 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

607 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

608 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

609 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

610 611 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

612 613 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

621 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

622 624 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

625 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

626 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

627 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

628 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

629 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

630 631 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

632 633 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

641 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

642 644 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7.

645 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

646 2. 2. 2. 2. 2. 2. 2. 2 . 2. 2. 2. 2.

647 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

648 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

649 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

650 651 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

652 653 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

661 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5. 5.

662 664 7. 7. 7. 7. 7. 7. 7. 7. 7. 7. 7 . 7.

665 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

666 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

667 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

668 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.

669 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6. 6.

670 671 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

672 673 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2. 2.

END MO N- GRND

- CONC

END PERLND

IMPLND

ACTIVITY

*** <ILS > Active Sections

*** x

- x ATMP SNOW IWAT SLD IWG IQAL

101 664 1 0 1 1 1 1

END ACTIVITY

PRINT

- INFO

*** <ILS > ******** Print

- flags ******** PIVL PYR

*** x

- x ATMP SNOW IWAT SLD IWG IQAL *********

101 664 6 6 5 6 6 6 1 9

END PRINT

- INFOFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 218

Florida Department of Environmental Protection

BINARY

- INFO

*** <ILS > ******** Print

- flags ******** PIVL PYR

*** x

- x ATMP SNOW IWAT SLD IWG IQAL *********

101 664 5 6 5 5 5 5 1 9

END BINARY

- INFO

GEN

- INFO

*** Name Unit

- systems Printer BinaryOut

*** <ILS > t

- series Engl Metr Engl Metr

*** x

- x in out

101 LDR 1 1 0 0 27 0

102 MDR 1 1 0 0 27 0

103 HDR 1 1 0 0 27 0

104 IND 1 1 0 0 27 0

121 LDR 1 1 0 0 27 0

122 MDR 1 1 0 0 27 0

123 HDR 1 1 0 0 27 0

124 IND 1 1 0 0 27 0

141 LDR 1 1 0 0 27 0

142 MDR 1 1 0 0 27 0

143 HDR 1 1 0 0 27 0

144 IND 1 1 0 0 27 0

161 LDR 1 1 0 0 27 0

162 MDR 1 1 0 0 27 0

163 HDR 1 1 0 0 27 0

164 IND 1 1 0 0 27 0

181 LDR 1 1 0 0 27 0

182 MDR 1 1 0 0 27 0

183 HDR 1 1 0 0 27 0

184 IND 1 1 0 0 27 0

201 LDR 1 1 0 0 27 0

202 MDR 1 1 0 0 27 0

203 HDR 1 1 0 0 27 0

204 IND 1 1 0 0 27 0

221 LDR 1 1 0 0 27 0

222 MDR 1 1 0 0 27 0

223 HDR 1 1 0 0 27 0

224 IND 1 1 0 0 27 0

241 LDR 1 1 0 0 27 0

242 MDR 1 1 0 0 27 0

243 HDR 1 1 0 0 27 0

244 IND 1 1 0 0 27 0

261 LDR 1 1 0 0 27 0

262 MDR 1 1 0 0 27 0

263 HDR 1 1 0 0 27 0

264 IND 1 1 0 0 27 0

281 LDR 1 1 0 0 27 0

282 MDR 1 1 0 0 27 0

283 HDR 1 1 0 0 27 0

284 IND 1 1 0 0 27 0

301 LDR 1 1 0 0 27 0

302 MDR 1 1 0 0 27 0

303 HDR 1 1 0 0 27 0

304 IND 1 1 0 0 27 0

***

501 LDR 1 1 0 0 27 0

502 MDR 1 1 0 0 27 0

503 HDR 1 1 0 0 27 0

504 IND 1 1 0 0 27 0

521 LDR 1 1 0 0 27 0

522 MDR 1 1 0 0 27 0FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 219

Florida Department of Environmental Protection

523 HDR 1 1 0 0 27 0

524 IND 1 1 0 0 27 0

541 LDR 1 1 0 0 27 0

542 MDR 1 1 0 0 27 0

543 HDR 1 1 0 0 27 0

544 IND 1 1 0 0 27 0

561 LDR 1 1 0 0 27 0

562 MDR 1 1 0 0 27 0

563 HDR 1 1 0 0 27 0

564 IND 1 1 0 0 27 0

581 LDR 1 1 0 0 27 0

582 MDR 1 1 0 0 27 0

583 HDR 1 1 0 0 27 0

584 IND 1 1 0 0 27 0

601 LDR 1 1 0 0 27 0

602 MDR 1 1 0 0 27 0

603 HDR 1 1 0 0 27 0

604 IND 1 1 0 0 27 0

621 LDR 1 1 0 0 27 0

622 MDR 1 1 0 0 27 0

623 HDR 1 1 0 0 27 0

624 IND 1 1 0 0 27 0

641 LDR 1 1 0 0 27 0

642 MDR 1 1 0 0 27 0

643 HDR 1 1 0 0 27 0

644 IND 1 1 0 0 27 0

661 LDR 1 1 0 0 27 0

662 MDR 1 1 0 0 27 0

663 HDR 1 1 0 0 27 0

664 IND 1 1 0 0 27 0

END GEN

- INFO

ATEMP

- DAT

*** <ILS > ELDAT AIRTEMP

*** x

- x (ft) (deg F)

***

101 664

- 60. 32.

END ATEMP

- DAT

IWAT -PARM1

*** <ILS > Flags

*** x

- x CSNO RTOP VRS VNN RTLI

101 664 0 0 0 0 0

END IWAT -PARM1

IWAT -PARM2

*** <ILS > LSUR SLSUR NSUR RETSC

*** x

- x (ft) (in)

101 104 200. 0.007 0.015 0.05

121 124 200. 0.006 0.015 0.05

1 41 144 200. 0.012 0.015 0.05

161 164 200. 0.005 0.015 0.05

181 184 200. 0.007 0.015 0.05

201 204 200. 0.003 0.015 0.05

221 224 200. 0.005 0.015 0.05

24 1 244 200. 0.006 0.015 0.05

261 264 200. 0.007 0.015 0.05

281 284 200. 0.039 0.015 0.05

301 304 200. 0.014 0.015 0.05

***

501 504 200. 0.013 0.015 0.05

521 524 200. 0.058 0.015 0.05FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 220

Florida Department of Environmental Protection

541 544 200. 0.063 0.015 0.05

561 564 200. 0.020 0.015 0.05

581 584 200. 0.061 0.015 0.05

601 604 200. 0.053 0.015 0.05

621 624 200. 0.033 0.015 0.05

641 644 200. 0.009 0.015 0.05

661 664 200. 0.015 0.015 0.05

END IWAT -PARM2

IWAT -PARM3

*** <ILS > PETMAX PETMIN

*** x

- x (deg F) (deg F)

101 664 40. 35.

END IWAT -PARM3

IWAT -STATE1

*** <ILS > IWATER state variables (inches)

*** x

- x RETS SURS

101 664 0. 0.

END IWAT -STATE1

SLD-PARM1

*** <PLS > Sediment parameters 1

*** x

- x VASD VRSD SDOP

101 6 64 0 0 0

END SLD -PARM1

SLD-PARM2

*** KEIM JEIM ACCSDP REMSDP

*** <ILS > tons/ /day

*** x

- x ac.day

101 0.050 2. 0.0010 0.083

102 0.085 2. 0.0020 0.083

103 0.095 2. 0.0025 0.083

104 0.095 2. 0.0025 0.083

121 0.050 2. 0.0010 0.083

122 0.085 2. 0.0020 0.083

123 0.095 2. 0.0025 0.083

124 0.095 2. 0.0025 0.083

141 0.050 2. 0.0010 0.083

142 0.085 2. 0.0020 0.083

143 0.095 2. 0.0025 0.083

144 0.095 2. 0.0025 0.083

161 0.050 2. 0.0010 0.083

162 0.085 2. 0.0020 0.083

163 0.095 2. 0.0025 0.083

164 0.095 2. 0.0025 0.083

181 0.050 2. 0.0010 0.083

182 0.085 2. 0.0020 0.083

183 0.095 2. 0.0025 0.083

184 0.095 2. 0.0025 0.083

201 0.050 2. 0.0010 0.083

202 0.085 2. 0.0020 0.083

203 0.095 2. 0.0025 0.083

204 0.095 2. 0.0025 0.083

221 0.050 2. 0.0010 0.083

222 0.085 2. 0.0020 0.083

223 0.095 2. 0.0025 0.083

224 0.095 2. 0.0025 0.083

241 0.050 2. 0.0010 0.083

242 0.085 2. 0.0020 0.083FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 221

Florida Department of Environmental Protection

243 0.095 2. 0.0025 0.083

244 0.095 2. 0.0025 0.083

261 0.050 2. 0.0010 0.083

262 0.085 2. 0.0020 0.083

263 0.095 2. 0.0025 0.083

264 0.095 2. 0.0025 0.083

281 0.050 2. 0.0010 0.083

282 0.085 2. 0.0020 0.083

283 0.095 2. 0.0025 0.083

284 0.095 2. 0.0025 0.083

301 0.050 2. 0.0010 0.083

302 0.085 2. 0.0020 0.083

303 0.095 2. 0.0025 0.083

304 0.095 2. 0.0025 0.083

***

501 0.050 2. 0.0010 0.083

502 0.085 2. 0.0020 0.083

503 0.095 2. 0.0025 0.083

504 0.095 2. 0.0025 0.083

521 0.050 2. 0.0010 0.083

522 0.085 2. 0.0020 0.083

523 0.095 2. 0.0025 0.083

524 0.095 2. 0.0025 0.083

541 0.050 2. 0.0010 0.083

542 0.085 2. 0.0020 0.083

543 0.095 2. 0.0025 0.083

544 0.095 2. 0.0025 0.083

561 0.050 2. 0.0010 0.083

562 0.085 2. 0.0020 0.083

563 0.095 2. 0.0025 0.083

564 0.095 2. 0.0025 0.083

581 0.050 2. 0.0010 0.083

582 0.085 2. 0.0020 0.083

583 0.095 2. 0.0025 0.083

584 0.095 2. 0.0025 0.083

601 0.050 2. 0.0010 0.083

602 0.085 2. 0.0020 0.083

603 0.095 2. 0.0025 0.083

604 0.095 2. 0.0025 0.083

621 0.050 2. 0.0010 0.083

622 0.085 2. 0.0020 0.083

623 0.095 2. 0.0025 0.083

624 0.095 2. 0.0025 0.083

641 0.050 2. 0.0010 0.083

642 0.085 2. 0.0020 0.083

643 0.095 2. 0.0025 0.083

644 0.095 2. 0.0025 0.083

661 0.050 2. 0.0010 0.083

662 0.085 2. 0.0020 0.083

663 0.095 2. 0.0025 0.083

664 0.095 2. 0.0025 0.083

END SLD -PARM2

SLD- STOR

*** <ILS > Solids storage (tons/acre)

*** x - x

101 664 0.2

END SLD

- STOR

IWT -PARM1FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 222

Florida Department of Environmental Protection *** <ILS > Flags for section IWTGAS

*** x

- x WTFV CSNO

101 664 1 0

END IWT -PARM1

IWT -PARM2

*** Second group of IWTGAS parms

*** <ILS > ELEV AWTF BWTF

*** x

- x (ft) (deg F) (deg F/F)

101 664 50. 40. 0.55

END IWT -PARM2

MON

- AWTF

*** <ILS > Values of AWTF at start of each month (oF)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 664 49.0 49.0 50.0 59.0 60.0 63.0 67.0 67.0 65.0 59.0 53.0 46.0

END MON

- AWTF

MON

- BWTF

*** <ILS > Values of BWTF at start of each month (F/F)

*** x

- x JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

101 664 0.2 .2 .2 .2 .2 .2 .2 .2 .2 .2 .2 .2

END MON

- BWTF

NQUALS

*** <ILS >

*** x

- xNQUAL

101 664 4

END NQUALS

QUAL -PROPS

*** <ILS > Identifiers and Flags

*** x

- x QUALID QTID QSD VPFW QSO VQO

101 664NH3 LBS 0 0 1 0

END QUAL -PROPS

QUAL

- INPUT

*** Storage on surface and nonseasonal parameters

*** SQO POTFW ACQOP SQOLIM WSQOP

*** <ILS > qty/ac qty/ton qty/ qty/ac in/hr

*** x

- x ac.day

101 0.039 0. 0.006 0.024 0.5

102 0.039 0. 0.006 0.024 0.5

103 0.039 0. 0.006 0.024 0.5

104 0.039 0. 0.006 0.024 0.5

121 0.039 0. 0.006 0.024 0.5

122 0.039 0. 0.006 0.024 0 .5

123 0.039 0. 0.006 0.024 0.5

124 0.039 0. 0.006 0.024 0.5

141 0.039 0. 0.006 0.024 0.5

142 0.039 0. 0.006 0.024 0.5

143 0.039 0. 0.006 0.024 0. 5

144 0.039 0. 0.006 0.024 0.5

161 0.039 0. 0.006 0.024 0.5

162 0.039 0. 0.006 0.024 0.5

163 0.039 0. 0.006 0.024 0.5

164 0.039 0. 0.006 0.024 0.5

181 0.039 0. 0.006 0.024 0.5

182 0.039 0. 0.006 0.024 0.5

183 0.039 0. 0.006 0.024 0.5

184 0.039 0. 0.006 0.024 0.5FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 223

Florida Department of Environmental Protection

201 0.039 0. 0.006 0.024 0.5

202 0.039 0. 0.006 0.024 0.5

203 0.039 0. 0.006 0.024 0.5

204 0.039 0. 0.006 0.024 0.5

221 0.039 0. 0.006 0.024 0.5

222 0.039 0. 0.006 0.024 0.5

223 0.039 0. 0.006 0.024 0.5

224 0.039 0. 0.006 0.024 0.5

241 0.039 0. 0.006 0.024 0.5

242 0.039 0. 0.006 0.024 0.5

243 0.039 0. 0.006 0.024 0.5

244 0.039 0. 0.006 0.024 0.5

261 0.039 0. 0.006 0.024 0.5

262 0.039 0. 0.006 0.024 0.5

263 0.039 0. 0.006 0.024 0.5

264 0.039 0. 0.006 0.024 0.5

281 0.039 0. 0.006 0.024 0.5

282 0.039 0. 0.006 0.024 0.5

283 0.039 0. 0.006 0.024 0.5

284 0.039 0. 0.006 0.024 0.5

301 0.039 0. 0.006 0.024 0 .5

302 0.039 0. 0.006 0.024 0.5

303 0.039 0. 0.006 0.024 0.5

304 0.039 0. 0.006 0.024 0.5

***

501 0.039 0. 0.006 0.024 0.5

502 0.039 0. 0.006 0.024 0.5

503 0.039 0. 0.006 0.024 0.5

504 0.039 0. 0.006 0.024 0.5

521 0.039 0. 0.006 0.024 0.5

522 0.039 0. 0.006 0.024 0.5

523 0.039 0. 0.006 0.024 0.5

524 0.039 0. 0.006 0.024 0.5

541 0.039 0. 0.006 0.024 0.5

542 0.039 0. 0.006 0.024 0.5

543 0.039 0. 0.006 0.024 0.5

544 0.039 0. 0.006 0.024 0.5

561 0.039 0. 0.006 0.024 0.5

562 0.039 0. 0.006 0.024 0.5

563 0.039 0. 0.006 0.024 0.5

564 0.039 0. 0.006 0.024 0.5

581 0.039 0. 0.006 0.024 0 .5

582 0.039 0. 0.006 0.024 0.5

583 0.039 0. 0.006 0.024 0.5

584 0.039 0. 0.006 0.024 0.5

601 0.039 0. 0.006 0.024 0.5

602 0.039 0. 0.006 0.024 0 .5

603 0.039 0. 0.006 0.024 0.5

604 0.039 0. 0.006 0.024 0.5

621 0.039 0. 0.006 0.024 0.5

622 0.039 0. 0.006 0.024 0.5

623 0.039 0. 0.006 0.024 0. 5

624 0.039 0. 0.006 0.024 0.5

641 0.039 0. 0.006 0.024 0.5

642 0.039 0. 0.006 0.024 0.5

643 0.039 0. 0.006 0.024 0.5

644 0.039 0. 0.006 0.024 0.5

661 0.039 0. 0.006 0.024 0.5

662 0.039 0. 0.006 0.024 0.5

663 0.039 0. 0.006 0.024 0.5FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 224

Florida Department of Environmental Protection

664 0.039 0. 0.006 0.024 0.5

END QUAL

- INPUT

QUAL -PROPS

*** <ILS > Identifiers and Flags

*** x

- x QUALID QTID QSD VPFW QSO VQO

101 664NO23 LBS 0 0 1 0

END QUAL -PROPS

QUAL

- INPUT

*** Storage on surface and nonseasonal parameters

*** SQO POTFW ACQOP SQOLIM WSQO P

*** <ILS > qty/ac qty/ton qty/ qty/ac in/hr

*** x

- x ac.day

101 0.039 0. 0.015 0.045 0.5

102 0.039 0. 0.015 0.045 0.5

103 0.039 0. 0.015 0.045 0.5

104 0.039 0. 0.015 0.045 0.5

121 0.039 0. 0.015 0.045 0.5

122 0.039 0. 0.015 0.045 0.5

123 0.039 0. 0.015 0.045 0.5

124 0.039 0. 0.015 0.045 0.5

141 0.039 0. 0.015 0.045 0.5

142 0.039 0. 0.015 0.045 0.5

143 0.039 0. 0.015 0.045 0.5

144 0.039 0. 0.015 0.045 0.5

161 0.039 0. 0.015 0.045 0.5

162 0.039 0. 0.015 0.045 0.5

163 0.039 0. 0.015 0.045 0.5

164 0.039 0. 0.015 0.045 0.5

181 0.039 0. 0.015 0.045 0.5

182 0.039 0. 0.015 0.045 0.5

183 0.039 0. 0.015 0.045 0.5

184 0.039 0. 0.015 0.045 0.5

201 0.039 0. 0.015 0.045 0.5

202 0.039 0. 0.015 0.045 0.5

203 0.039 0. 0.015 0.045 0.5

204 0.039 0. 0.015 0.045 0.5

221 0.039 0. 0.015 0.045 0.5

222 0.039 0. 0.015 0.045 0.5

223 0.039 0. 0.015 0.045 0.5

224 0.039 0. 0.015 0.045 0.5

241 0.039 0. 0.015 0.045 0.5

242 0.039 0. 0.015 0.045 0.5

243 0.039 0. 0.015 0.045 0.5

244 0.039 0. 0.015 0.045 0.5

261 0.039 0. 0.015 0.045 0.5

262 0.039 0. 0.015 0.045 0.5

263 0.039 0. 0.015 0.045 0.5

264 0.039 0. 0.015 0.045 0.5

281 0.039 0. 0.015 0.045 0.5

282 0.039 0. 0.015 0.045 0.5

283 0.039 0. 0.015 0.045 0.5

284 0.039 0. 0.015 0.045 0.5

301 0.039 0. 0.015 0.045 0.5

302 0.039 0. 0.015 0.045 0.5

303 0.039 0. 0.015 0.045 0.5

304 0.039 0. 0.015 0.045 0.5

***

501 0.039 0. 0.015 0.045 0.5FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 225

Florida Department of Environmental Protection

502 0.039 0. 0.015 0.045 0.5

503 0.039 0. 0.015 0.045 0.5

504 0.039 0. 0.015 0.045 0.5

521 0.039 0. 0.015 0.045 0.5

522 0.039 0. 0.015 0.045 0.5

523 0.039 0. 0.015 0.045 0.5

524 0.039 0. 0.015 0.045 0.5

541 0.039 0. 0.015 0.045 0.5

542 0.039 0. 0.015 0.045 0.5

543 0.039 0. 0.015 0.045 0.5

544 0.039 0. 0.015 0.045 0.5

561 0.039 0. 0.015 0.045 0.5

562 0.039 0. 0.015 0.045 0.5

563 0.039 0. 0.015 0.045 0.5

564 0.039 0. 0.015 0.045 0.5

581 0.039 0. 0.015 0.045 0.5

582 0.039 0. 0.015 0.045 0.5

583 0.039 0. 0.015 0.045 0.5

584 0.039 0. 0.015 0.045 0.5

601 0.039 0. 0.015 0.045 0.5

602 0.039 0. 0.015 0.045 0.5

603 0.039 0. 0.015 0.045 0.5

604 0.039 0. 0.015 0.045 0.5

621 0.039 0. 0.015 0.045 0.5

622 0.039 0. 0.015 0.045 0.5

623 0.039 0. 0.015 0.045 0.5

624 0.039 0. 0.015 0.045 0.5

641 0.039 0. 0.015 0.045 0.5

642 0.039 0. 0.015 0.045 0.5

643 0.039 0. 0.015 0.045 0.5

644 0.039 0. 0.015 0.045 0.5

661 0.039 0. 0.015 0.045 0.5

662 0.039 0. 0.015 0.045 0.5

663 0.039 0. 0.015 0.045 0.5

664 0.039 0. 0.015 0.045 0.5

END QUAL

- INPUT

QUAL -PROPS

*** <ILS > Identifiers and Flags

*** x

- x QUALID QTID QSD VPFW QSO VQO

101 664ORTHO P LBS 0 0 1 0

E ND QUAL -PROPS

QUAL

- INPUT

*** Storage on surface and nonseasonal parameters

*** SQO POTFW ACQOP SQOLIM WSQOP

*** <ILS > qty/ac qty/ton qty/ qty/ac in/hr

*** x

- x ac.day

101 0.039 0. 0.005 0.015 0.5

102 0.039 0. 0.005 0.015 0.5

103 0.039 0. 0.005 0.015 0.5

104 0.039 0. 0.005 0.015 0.5

121 0.039 0. 0.005 0.015 0.5

122 0.039 0. 0.005 0.015 0.5

123 0.039 0. 0.005 0.015 0.5

124 0.039 0. 0.005 0.015 0.5

141 0.039 0. 0.005 0.015 0.5

142 0.039 0. 0.005 0.015 0.5

143 0.039 0. 0.005 0.015 0.5

144 0.039 0. 0.005 0.015 0.5

161 0.039 0. 0.005 0.015 0.5FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 226

Florida Department of Environmental Protection

162 0.039 0. 0.005 0.015 0.5

163 0.039 0. 0.005 0.015 0.5

164 0.039 0. 0.005 0.015 0.5

181 0.039 0. 0.005 0.015 0.5

182 0.039 0. 0.005 0.015 0.5

183 0.039 0. 0.005 0.015 0.5

184 0.039 0. 0.005 0.015 0.5

201 0.039 0. 0.005 0.015 0.5

202 0.039 0. 0.005 0.015 0.5

203 0.039 0. 0.005 0.015 0.5

204 0.039 0. 0.005 0.015 0.5

221 0.039 0. 0.005 0.015 0.5

222 0.039 0. 0.005 0.015 0.5

223 0.039 0. 0.005 0.015 0.5

224 0.039 0. 0.005 0.015 0.5

241 0.039 0. 0.005 0.015 0.5

242 0.039 0. 0.005 0.015 0.5

243 0.039 0. 0.005 0.015 0.5

244 0.039 0. 0.005 0.015 0.5

261 0.039 0. 0.005 0.015 0.5

262 0.039 0. 0.005 0.015 0.5

263 0.039 0. 0.005 0.015 0.5

264 0.039 0. 0.005 0.015 0.5

281 0.039 0. 0.005 0.015 0.5

282 0.039 0. 0.005 0.015 0.5

283 0.039 0. 0.005 0.015 0.5

284 0.039 0. 0.005 0.015 0.5

301 0.039 0. 0.005 0.015 0.5

302 0.039 0. 0.005 0.015 0.5

303 0.039 0. 0.005 0.015 0.5

304 0.039 0. 0.005 0.015 0.5

***

501 0.039 0. 0.005 0.015 0.5

502 0.039 0. 0.005 0.015 0.5

503 0.039 0. 0.005 0.015 0.5

504 0.039 0. 0.005 0.015 0.5

521 0.039 0. 0.005 0.015 0.5

522 0.039 0. 0.005 0.015 0.5

523 0.039 0. 0.005 0.015 0.5

524 0.039 0. 0.005 0.015 0.5

541 0.039 0. 0.005 0.015 0.5

542 0.039 0. 0.005 0.015 0.5

543 0.039 0. 0.005 0.015 0.5

544 0.039 0. 0.005 0.015 0.5

561 0.039 0. 0.005 0.015 0.5

562 0.039 0. 0.005 0.015 0.5

563 0.039 0. 0.005 0.015 0.5

564 0.039 0. 0.005 0.015 0.5

581 0.039 0. 0.005 0.015 0.5

582 0.039 0. 0.005 0.015 0.5

583 0.039 0. 0.005 0.015 0.5

584 0.039 0. 0.005 0.015 0.5

601 0.039 0. 0.005 0.015 0.5

602 0.039 0. 0.005 0.015 0.5

603 0.039 0. 0.005 0.015 0.5

604 0.039 0. 0.005 0.015 0.5

621 0.039 0. 0.005 0.015 0.5

622 0.039 0. 0.005 0.015 0.5

623 0.039 0. 0.005 0.015 0.5FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 227

Florida Department of Environmental Protection

624 0.039 0. 0.005 0.015 0.5

641 0.039 0. 0.005 0.015 0.5

642 0.039 0. 0.005 0.015 0.5

643 0.039 0. 0.005 0.015 0.5

644 0.039 0. 0.005 0.015 0.5

661 0.039 0. 0.005 0.015 0.5

662 0.039 0. 0.005 0.015 0.5

663 0.039 0. 0.005 0.015 0.5

664 0.039 0. 0.005 0.015 0.5

END QUAL

- INPUT

QUAL -PROPS

*** <I LS > Identifiers and Flags

*** x

- x QUALID QTID QSD VPFW QSO VQO

101 664BOD LBS 0 0 1 0

END QUAL -PROPS

QUAL

- INPUT

*** Storage on surface and nonseasonal parameters

*** SQO POTFW ACQOP SQOLIM WSQOP

*** <ILS > qty/ac qty/ton qty/ qty/ac in/hr

*** x

- x ac.day

101 0.039 0. 0.8 8.0 0.5

102 0.039 0. 0.8 8.0 0.5

103 0.039 0. 0.8 8.0 0.5

104 0.039 0. 0.8 8.0 0.5

121 0.039 0. 0.8 8.0 0.5

122 0.039 0. 0.8 8.0 0.5

123 0.039 0. 0.8 8.0 0.5

124 0.039 0. 0.8 8.0 0.5

141 0.039 0. 0.8 8.0 0.5

142 0.039 0. 0.8 8.0 0.5

143 0.039 0. 0.8 8.0 0.5

144 0.039 0. 0.8 8.0 0.5

161 0.039 0. 0.8 8.0 0.5

1 62 0.039 0. 0.8 8.0 0.5

163 0.039 0. 0.8 8.0 0.5

164 0.039 0. 0.8 8.0 0.5

181 0.039 0. 0.8 8.0 0.5

182 0.039 0. 0.8 8.0 0.5

18 3 0.039 0. 0.8 8.0 0.5

184 0.039 0. 0.8 8.0 0.5

201 0.039 0. 0.8 8.0 0.5

202 0.039 0. 0.8 8.0 0.5

203 0.039 0. 0.8 8.0 0.5

204 0.039 0. 0.8 8.0 0.5

221 0.039 0. 0.8 8.0 0.5

222 0.039 0. 0.8 8.0 0.5

223 0.039 0. 0.8 8.0 0.5

224 0.039 0. 0.8 8.0 0.5

2 41 0.039 0. 0.8 8.0 0.5

242 0.039 0. 0.8 8.0 0.5

243 0.039 0. 0.8 8.0 0.5

244 0.039 0. 0.8 8.0 0.5

261 0.039 0. 0.8 8.0 0.5

26 2 0.039 0. 0.8 8.0 0.5

263 0.039 0. 0.8 8.0 0.5

264 0.039 0. 0.8 8.0 0.5

281 0.039 0. 0.8 8.0 0.5

282 0.039 0. 0.8 8.0 0.5

283 0.039 0. 0.8 8.0 0.5FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 228

Florida Department of Environmental Protection

284 0.039 0. 0.8 8.0 0.5

301 0.039 0. 0.8 8.0 0.5

302 0.039 0. 0.8 8.0 0.5

303 0.039 0. 0.8 8.0 0.5

304 0.039 0. 0.8 8.0 0.5

***

501 0.039 0. 0.8 8.0 0.5

502 0.039 0. 0.8 8.0 0.5

503 0.039 0. 0.8 8.0 0.5

504 0.039 0. 0.8 8.0 0 .5

521 0.039 0. 0.8 8.0 0.5

522 0.039 0. 0.8 8.0 0.5

523 0.039 0. 0.8 8.0 0.5

524 0.039 0. 0.8 8.0 0.5

541 0.039 0. 0.8 8.0 0. 5

542 0.039 0. 0.8 8.0 0.5

543 0.039 0. 0.8 8.0 0.5

544 0.039 0. 0.8 8.0 0.5

561 0.039 0. 0.8 8.0 0.5

562 0.039 0. 0.8 8.0 0.5

563 0.039 0. 0.8 8.0 0.5

564 0.039 0. 0.8 8.0 0.5

581 0.039 0. 0.8 8.0 0.5

582 0.039 0. 0.8 8.0 0.5

583 0.039 0. 0.8 8.0 0.5

584 0.039 0. 0.8 8.0 0.5

601 0.039 0. 0.8 8.0 0.5

602 0.039 0. 0.8 8.0 0.5

603 0.039 0. 0.8 8.0 0.5

604 0.039 0. 0.8 8.0 0. 5

621 0.039 0. 0.8 8.0 0.5

622 0.039 0. 0.8 8.0 0.5

623 0.039 0. 0.8 8.0 0.5

624 0.039 0. 0.8 8.0 0.5

641 0.039 0. 0.8 8.0 0.5

642 0.039 0. 0.8 8.0 0.5

643 0.039 0. 0.8 8.0 0.5

644 0.039 0. 0.8 8.0 0.5

661 0.039 0. 0.8 8.0 0.5

662 0.039 0. 0.8 8.0 0.5

663 0.039 0. 0.8 8.0 0.5

664 0.039 0. 0.8 8.0 0.5

END QUAL

- INPUT

END IMPLND

RCHRES

ACTIVITY

*** RCHRES Active sections

*** x

- x HYFG ADFG CNFG HTFG SDFG GQFG OXFG NUFG PKFG PHFG

1 20 1 1 0 1 1 0 1 1 1 0

116 307 1 1 1 0 0 0 0 0 0 0

END ACTIVITY

PRINT

- INFO

*** RCHRES Printout level flags

*** x

- x HYDR ADCA CONS HEAT SED GQL OXRX NUTR PLNK PHCB PIVL PYR

1 20 5 6 6 6 6 6 6 6 6 6 1 9

116 307 5 6 6 6 6 6 6 6 6 6 1 9

END PRINT

- INFOFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 229

Florida Department of Environmental Protection

BINARY

- INFO

*** RCHRES Printout level flags

*** x

- x HYDR ADCA CONS HEAT SED GQL OXRX NUTR PLNK PHCB PIVL PYR

1 20 5 6 6 6 6 6 6 6 6 6 1 9

116 307 6 6 6 6 6 6 6 6 6 6 1 9

END BINARY

- INFO

GEN

- INFO

*** Name Nexits Unit Systems Printer

*** RCHRES t- series Engl Metr LKFG

*** x

- x in out

1 Deep Creek 1 1 1 1 0 0 0 28 0

2 Lake Ashby 1 1 1 0 0 1 28 0

3 Deep Creek Canal 1 1 1 0 0 0 28 0

4 Deep Creek 2 1 1 1 0 0 0 28 0

5 Deep Creek 3 1 1 1 0 0 0 28 0

6 Cow Creek 1 1 1 0 0 0 28 0

7 Underhill/Gopher 1 1 1 0 0 1 28 0

8 Lake Harney 1 1 1 0 0 1 28 0

9 SJR above Harney 1 1 1 0 0 1 28 0

10 Chain of Lakes 1 1 1 0 0 1 28 0

11 SJR below Harney 1 1 1 0 0 1 28 0

***

12 Unnamed lake/swamp 1 1 1 0 0 1 28 0

13 Lake Gleason/Big 2 1 1 0 0 1 28 0

14 Chain of Lakes 1 1 1 0 0 1 28 0

15 Lake Monroe 1 1 1 0 0 1 28 0

16 Chain of Lakes 2 1 1 0 0 1 28 0

17 Crystal Lake 1 1 1 0 0 1 28 0

18 Lockhart

- S Canal 1 1 1 0 0 0 28 0

20 SJR below Monroe 1 1 1 0 0 1 28 0

***

116 D1 1 1 1 0 0 1 0 0

117 W1 1 1 1 0 0 1 0 0

127 W2 1 1 1 0 0 1 0 0

136 D3 1 1 1 0 0 1 0 0

137 W3 1 1 1 0 0 1 0 0

147 W4 1 1 1 0 0 1 0 0

167 W6 1 1 1 0 0 1 0 0

186 D8 1 1 1 0 0 1 0 0

187 W8 1 1 1 0 0 1 0 0

196 D9 1 1 1 0 0 1 0 0

197 W9 1 1 1 0 0 1 0 0

206 D10 1 1 1 0 0 1 0 0

207 W10 1 1 1 0 0 1 0 0

216 D11 1 1 1 0 0 1 0 0

217 W11 1 1 1 0 0 1 0 0

***

226 D12 1 1 1 0 0 1 0 0

227 W12 1 1 1 0 0 1 0 0

236 D13 1 1 1 0 0 1 0 0

237 W13 1 1 1 0 0 1 0 0

246 D14 1 1 1 0 0 1 0 0

247 W14 1 1 1 0 0 1 0 0

256 D15 1 1 1 0 0 1 0 0

257 W15 1 1 1 0 0 1 0 0

266 D16 1 1 1 0 0 1 0 0

267 W16 1 1 1 0 0 1 0 0

276 D17 1 1 1 0 0 1 0 0

277 W17 1 1 1 0 0 1 0 0

286 D18 1 1 1 0 0 1 0 0FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



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Florida Department of Environmental Protection

287 W18 1 1 1 0 0 1 0 0

306 D20 1 1 1 0 0 1 0 0

307 W20 1 1 1 0 0 1 0 0

END GEN

- INFO

HYDR -PARM1

*** Flags for HYDR section

***R C HRES VC A1 A2 A3 ODFVFG for each *** ODGTFG for each FUNCT for each

*** x

- x FG FG FG FG possible exit *** possible exit possible exit

1 12 0 1 1 1 4 0 0 0 0 0 0 0 0 0 1 1 1 1 1

13 0 1 1 1 4 5 0 0 0 0 0 0 0 0 1 1 1 1 1

14 15 0 1 1 1 4 0 0 0 0 0 0 0 0 0 1 1 1 1 1

16 0 1 1 1 4 5 0 0 0 0 0 0 0 0 1 1 1 1 1

17 20 0 1 1 1 4 0 0 0 0 0 0 0 0 0 1 1 1 1 1

116 307 0 1 1 1 4 0 0 0 0 0 0 0 0 0 1 1 1 1 1

END HYDR

- PARM1

HYDR -PARM2

*** RCHRES FTBW FTBU LEN DELTH STCOR KS DB50

*** x

- x (miles) (ft) (ft) (in)

1 0. 1. 9.5 1. 3.2 0.5 0.01

2 0. 2. 1. 1. 3.2 0.5 0.01

3 0. 3. 9.9 20. 3.2 0.5 0.01

4 0. 4. 5.5 6. 1.2 0.5 0.01

5 0. 5. 5.0 2. 3.2 0.5 0.01

6 0. 6. 5.5 15. 3.2 0.5 0.01

7 0. 7. 1. 1. 3.2 0.5 0.01

8 0. 8. 1. 1. 3.2 0.5 0.01

9 0. 9. 1.4 1. 3.2 0.5 0.01

10 0. 10. 1. 1. 3.2 0.5 0.01

11 0. 11. 12.4 1. 3.2 0.5 0.01

***

12 0. 12. 1. 1. 3.2 0.5 0.01

13 0. 13. 1. 1. 3.2 0.5 0.01

14 0. 14. 1. 1. 3.2 0.5 0.01

15 0. 15. 1. 1.

- 14.0 0.5 0.01

16 0. 16. 1. 1. 3.2 0.5 0.01

17 0. 17. 1. 1. 3.2 0.5 0.01

18 0. 18. 5.6 30. 3.2 0.5 0.01

20 0. 20. 5.7 1. 3.2 0.5 0.01

***

116 0. 116. 1. 1. 3.2 0.5 0.01

117 0. 117. 1. 1. 3.2 0.5 0.01

127 0. 127. 1. 1. 3.2 0.5 0.01

136 0. 136. 1. 1. 3.2 0.5 0.01

137 0. 137. 1. 1. 3.2 0.5 0.01

147 0. 147. 1. 1. 3.2 0.5 0.01

167 0. 167. 1. 1. 3.2 0.5 0.01

186 0. 186. 1. 1. 3.2 0.5 0.01

187 0. 187. 1. 1. 3.2 0.5 0.01

196 0. 196. 1. 1. 3.2 0.5 0.01

197 0. 197. 1. 1. 3.2 0.5 0.01

206 0. 206. 1. 1. 3.2 0.5 0.01

207 0. 207. 1. 1. 3.2 0.5 0.01

216 0. 216. 1. 1. 3.2 0.5 0.01

217 0. 217. 1. 1. 3.2 0.5 0.01

***

226 0. 226. 1. 1. 3.2 0.5 0.01

227 0. 227. 1. 1. 3.2 0.5 0.01

236 0. 236. 1. 1. 3.2 0.5 0.01

237 0. 237. 1. 1. 3.2 0.5 0.01

246 0. 246. 1. 1. 3.2 0.5 0.01FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 231

Florida Department of Environmental Protection

247 0. 247. 1. 1. 3.2 0.5 0.01

256 0. 256. 1. 1. 3.2 0.5 0.01

257 0. 257. 1. 1. 3.2 0.5 0.01

266 0. 266. 1. 1. 3.2 0.5 0.01

267 0. 267. 1. 1. 3.2 0.5 0.01

276 0. 276. 1. 1. 3.2 0.5 0.01

277 0. 277. 1. 1. 3.2 0.5 0.01

286 0. 286. 1. 1. 3.2 0.5 0.01

287 0. 287. 1. 1. 3.2 0.5 0.01

306 0. 306. 1. 1. 3.2 0.5 0.01

307 0. 307. 1. 1. 3.2 0.5 0.01

END HYDR

- PARM2

HYDR

- INIT

*** Initial conditions for HYDR section

***RC HRES VOL CAT Initial value of COLIND initial value of OUTDGT

*** x

- x ac

- ft for each possible exit for each p ossible exit,ft3

1 100. 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

2 3000. 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

3 10. 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

4 10. 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

5 10. 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

6 10. 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

7 2000. 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

8 100000. 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

9 800. 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

10 500. 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

11 40000. 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

***

12 2000. 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

13 1500. 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

14 15000. 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

15 100000. 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

16 800. 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

17 800. 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

18 10. 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

20 14000. 4. 4. 4. 4. 4 . 1. 1. 1. 1. 1.

***

116 0.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

117 200.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

127 35.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

136 0.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

137 150.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

147 30.0 4. 4. 4. 4. 4. 1 . 1. 1. 1. 1.

167 80.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

186 0.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

187 100.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

196 0.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

197 20.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

206 0.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

207 4.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

216 0.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

217 350.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

***

226 0.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

227 50.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

236 0.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

237 25.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

246 0.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

247 450.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

256 0.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

257 1000.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 232

Florida Department of Environmental Protection

266 0.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

267 20.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

276 0.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

277 250.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

286 0.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

287 600.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

306 0.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

307 280.0 4. 4. 4. 4. 4. 1. 1. 1. 1. 1.

END HYDR

- INIT

NCONS

*** RCHRES BMPs Water Quality

*** x

- xNCONS

116 307 10

END NCONS

CONS

- DATA

RCHRES BMPs WQ DO as conservative constituent No. 1 ***

#

- # Sub stance

- id Conc ID CONV QTYID ***

116 307 DO 7.0 mg/l 16030. LB

END CONS

- DATA

CONS

- DATA

RCHRES BMPs WQ HEAT as conservative constituent No. 2 ***

#

- # Substance

- id Con c ID CONV QTYID ***

116 307 HEAT 20.0 degC 0.0089 BTU

END CONS

- DATA

CONS

- DATA

RCHRES BMPs WQ TSS as conservative constituent No. 3 ***

#

- # Substance

- id Conc ID CONV QTYID ***

116 307 TSS 0.1 mg/l 3.534E+07 TON

END CONS

- DATA

CONS

- DATA

RCHRES BMPs WQ NH4 as conservative constituent No. 4 ***

#

- # Substance

- id Conc ID CONV QTYID ***

116 307 NH4 0.1 mg/l 16030. LB

END CONS

- DATA

CONS

- DATA

RCHRES BMPs WQ NOX as conservative constituent No. 5 ***

#

- # Substance

- id Conc ID CONV QTYID ***

116 307 NOX 0.1 mg/l 16030. LB

END CONS

- DATA

CONS

- DATA

RCHRES BMPs WQ PO4 as conservative constituent No. 6 ***

#

- # Substance

- id Conc ID CONV QTYID ***

116 307 PO4 0.1 mg/l 16030. LB

END CONS

- DATA

CONS

- DATA

RCHRES BMPs WQ BOD as conservative constituent No. 7 ***

#

- # Substance

- id Conc ID CONV QTYID ***

116 307 BOD 0.1 mg/l 16030. LB

END CONS

- DATA

CONS

- DATA

RCHRES BMPs WQ BOD as conservative constituent No. 7 ***

#

- # Substance

- id Conc ID CONV QTYID ***

116 307 ORN 0.1 mg/l 16030. LBFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 233

Florida Department of Environmental Protection

E ND CONS

- DATA

CONS

- DATA

RCHRES BMPs WQ BOD as conservative constituent No. 7 ***

#

- # Substance

- id Conc ID CONV QTYID ***

116 307 ORP 0.1 mg/l 16030. LB

END CONS

- DATA

CON S- DATA

RCHRES BMPs WQ BOD as conservative constituent No. 7 ***

#

- # Substance

- id Conc ID CONV QTYID ***

116 307 ORC 0.1 mg/l 16030. LB

END CONS

- DATA

HT -BED- FLAGS

*** RCHRE S Bed Heat Conductance Flags

*** x

- x BDFG TGFG TSTP

1 20 0 3 48

END HT -BED- FLAGS

HEAT-PARM

*** RCHRES ELEV ELDAT CFSAEX KATRAD KCOND KEVAP

*** x

- x (ft) (ft)

1 20 30.

- 60. 1.0 9.0 10. 2.2

END HEAT -PARM

HT -BED-PARM

*** Bed Heat Conduction Parameters for Single and Two

- layer Methods

*** RCHRES MUDDEP TGRND KMUD KGRND

*** x

- x (ft) (deg F) (kcal/m2/C/hr)

1 20 0.33 59. 50. 1.4

END HT -BED-PARM

MON

- HT

- TGRND

*** RCHRES Monthly values of ground temperatures (deg F)

*** x

- x TG1 TG2 TG3 TG4 TG5 TG6 TG7 TG8 TG9 TG10 TG11 TG12

1 20 43. 46. 53. 62. 70. 77. 79. 79. 77. 66. 53. 45.

END MON

- HT

- TGRND

HEAT- INIT

*** RCHRES TW AIRTMP

*** x

- x (deg F) (deg F)

1 20 48. 56.

END HEAT

- INIT

SANDFG

*** RCHRES

*** x

- x SDFG

1 20 3

END SANDFG

SED-GENPARM

*** RCHRES BEDWID BEDWRN POR

*** x

- x (ft) (ft)

1 800. 2. 0.4

2 7000. 2. 0.4

3 20. 2. 0.4

4 20. 2. 0.4

5 50. 2. 0.4

6 20. 2. 0.4

7 4000. 2. 0.4

8 60000. 2. 0.4FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 234

Florida Department of Environmental Protection

9 40. 2. 0.4

10 3000. 2. 0.4

11 2000. 2. 0.4

12 2000. 2. 0.4

13 2000. 2. 0.4

14 20000. 2. 0.4

15 80000. 2. 0.4

16 1000. 2. 0.4

17 5000. 2. 0.4

18 20. 2. 0.4

20 600. 2. 0.4

END SED -GENPARM

SAND- PM

*** RCHRES D W RHO KSAND EXPSND

*** x

- x (in) (in/sec) (gm/cm3)

1 20 0.005 0.02 2.65 0.3 5.

END SAND

- PM

SILT- CLAY

- PM

*** RCHRES D W RHO TAUCD TAUCS M

*** x

- x (in) (in/sec) gm/cm3 lb/ft2 lb/ft2 lb/ft2.d

1 0.0004 0.0002 2.5 0.005 0.25 0.06

2 0.0004 0.0002 2.5 1.0E

- 8 0.25 0.06

3 0.0004 0.0002 2.5 0.05 0.25 0.06

4 0.0004 0.0002 2.5 0.05 0.25 0.06

5 0.0004 0.0002 2.5 0.005 0.25 0.06

6 0.0004 0.0002 2.5 0.05 0.25 0.06

7 0.0004 0.0002 2.5 1.0E

- 8 0.25 0.06

8 0.0004 0.0002 2.5 1.0E

- 9 0.25 0.06

9 0.0004 0.0002 2.5 1.0E

- 8 0.25 0.06

10 0.0004 0.0002 2.5 1.0E

- 8 0.25 0.06

11 0.0004 0.0002 2.5 1.0E

- 8 0.25 0.06

12 0.0004 0.0002 2.5 1.0E

- 8 0.25 0.06

13 0.0004 0.0002 2.5 1.0E

- 8 0.25 0.06

14 0.0004 0.0002 2.5 1.0E

- 8 0.25 0.06

15 0.0004 0.0002 2.5 1.0E

- 9 0.25 0.06

16 0.0004 0.0002 2.5 1 .0E

- 8 0.25 0.06

17 0.0004 0.0002 2.5 1.0E

- 8 0.25 0.06

18 0.0004 0.0002 2.5 0.005 0.25 0.06

20 0.0004 0.0002 2.5 1.0E

- 8 0.25 0.06

END SILT

- CLAY -PM

SILT- CLAY

- PM

*** RCHRES D W RHO TAUCD TAUCS M

*** x

- x (in) (in/sec) gm/cm3 lb/ft2 lb/ft2 lb/ft2.d

1 0.0001 0.0001 2.2 0.005 0.25 0.065

2 0.0001 0.0001 2.2 1.0E

- 8 0.25 0.065

3 0.0001 0.0001 2.2 0.05 0.25 0.065

4 0.0001 0.0001 2.2 0.05 0.25 0.065

5 0.0001 0.0001 2.2 0.005 0.25 0.0 65

6 0.0001 0.0001 2.2 0.05 0.25 0.065

7 0.0001 0.0001 2.2 1.0E

- 8 0.25 0.065

8 0.0001 0.0001 2.2 1.0E

- 9 0.25 0.065

9 0.0001 0.0001 2.2 1.0E

- 8 0.25 0.065

10 0.0001 0.0001 2.2 1.0E

- 8 0.25 0.065

11 0.0001 0.0001 2.2 1.0E

- 8 0.25 0.065

12 0.0001 0.0001 2.2 1.0E

- 8 0.25 0.065

13 0.0001 0.0001 2.2 1.0E

- 8 0.25 0.065

14 0.0001 0.0001 2.2 1.0E

- 8 0.25 0.065

15 0.0001 0.0001 2.2 1.0E

- 9 0.25 0.065

16 0.0001 0.0001 2.2 1.0E

- 8 0.25 0.065FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 235

Florida Department of Environmental Protection

17 0.0001 0.0001 2.2 1.0E

- 8 0.25 0.065

18 0.0001 0.0001 2.2 0.005 0.25 0.065

20 0.0001 0.0001 2.2 1.0E

- 8 0.25 0.065

END SILT

- CLAY

- PM

SSED- INIT

*** RCHRES Suspended sed concs (mg/l)

*** x

- x Sand Silt Clay

1 20 0. 0. 0.

END SSED

- INIT

BED- INIT

*** RCHRES BEDDEP Initial bed composition

*** x

- x (ft) Sand Silt Clay

1 20 0.19 0.38 0.46 0.16

END BED

- INIT

BENTH-FLAG

*** RCHRES Benthic release flag

*** x

- x BENF

1 20 1

END BENTH -FLAG

SCOUR -PARMS

*** RCHRES SCRVEL SCRMUL

*** x

- x ft/sec

1 20 3. 5

. END SCOUR -PARMS

OX

- FLAGS

*** RCHRES Oxygen flags

*** x

- x REAM

1 20 3

END OX

- FLAGS

OX -GENPARM

*** RCHRES KBOD20 TCBOD KODSET SUPSAT

*** x

- x /hr ft/hr

1 20 0.0031 1.074 0.027 1 .15

END OX -GENPARM

*** SOD Measurements

*** 1979 BOD in selected Florida Aquatic Systems

*** Harney 180 mg/m2.hr

*** Monroe 140 mg/m2.hr

*** Jesup 100 mg/m2.hr

*** 2006 Lake Jesup Sediment Nutrient Flux and SOD

*** Jesup 32

- 91 mg/ m2.hr varied by time and location

OX -BENPARM

*** RCHRES BENOD TCBEN EXPOD BRBOD(1) BRBOD(2) EXPREL

*** x

- x mg/m2.hr mg/m2.hr mg/m2.hr

1 80. 1.074 1.2 0.0001 0.0001 2.82

2 20. 1.074 1.2 0.0001 0.0001 2.82

3 20. 1.074 1.2 0.0001 0.0001 2.82

4 20. 1.074 1.2 0.0001 0.0001 2.82

5 20. 1.074 1.2 0.0001 0.0001 2.82

6 80. 1.074 1.2 0.0001 0.0001 2.82

7 80. 1.074 1.2 0.0001 0.0001 2.82

8 90. 1.074 1.2 0.0001 0.0001 2.82

9 20. 1.074 1.2 0.0001 0.0001 2.82

10 20. 1.074 1.2 0.0001 0.0001 2.82FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 236

Florida Department of Environmental Protection

11 80. 1.074 1.2 0.0001 0.0001 2.82

12 20. 1.074 1.2 0.0001 0.0001 2.82

13 20. 1.074 1.2 0.0001 0.0001 2.82

14 20. 1.074 1.2 0.0001 0.0001 2.82

15 70. 1.074 1.2 0.0001 0.0001 2.82

16 20. 1.074 1.2 0.0001 0.0001 2.82

17 40. 1.074 1.2 0.0001 0.0001 2.82

18 40. 1.074 1.2 0.0001 0.0001 2.82

20 70. 1.074 1.2 0.0001 0.0001 2.82

END OX -BENPARM

OX

- CFOR EA

RCHRES CFOREA ***

#

- # ***

2 1.0

7 1.0

8 2.5

9 1.0

10 1.0

11 1.0

12 1.0

13 1.0

14 1.0

15 2.5

16 1.0

17 1.0

20 1.0

END OX

- CFOREA

OX -REAPARM

*** RCHRES TCGINV REAK EXPRED EXPREV

*** x

- x /hr

1 20 1.047 0.10

- 1.673 0.969

END OX -REAPARM

OX

- INIT

*** RCHRES DOX BOD SATDO

*** x

- x mg/l mg/l mg/l

1 20 12.8 3.5 13.5

END OX

- INIT

NUT

- FLAGS

*** RCHRES Nutrient flags

*** x

- x NH3 NO2 PO4 AMV DEN ADNH ADPO PHFL

1 20 1 1 1 0 1 0 0 2

END NUT

- FLAGS

NUT -AD- FLAGS

Atmospheric Deposition Flags ***

<PLS > NO3 NH3 PO4 ***

x

- x <F><C> <F><C> <F><C> ***

1 20 10 11 20 21 30 31

END NUT -AD- FLAGS

CONV -VAL1

*** RCHRES CVBO CVBPC CVBPN BPCNTC

*** x

- x mg/mg mols/m ol mols/mol

1 20 1.68 106. 16. 49.

END CONV -VAL1

NUT -BENPARM

*** RCHRES BRTAM(1) BRTAM(2) BRPO4(1) BRPO4(2) ANAERFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 237

Florida Department of Environmental Protection *** x

- x mg/m2.hr mg/m2.hr mg/m2.hr mg/m2.hr mg/l

1 0.0 0. 0.00 0. 0.005

2 0.12 0. 0.00 0. 0.005

3 7 0.0 0. 0.00 0. 0.005

8 0.0 0. 0.00 0. 0.005

9 20 0.0 0. 0.00 0. 0.005

END NUT -BENPARM

NUT

- NITDENIT

*** RCHRES KTAM20 KNO220 TCNIT KNO320 TCDEN DENOXT

*** x

- x /hr /hr /hr mg/l

1 20 0.005 0.100 1.07 0.002 1.04 5.

END NUT

- NITDENIT

NUT

- DINIT

*** RCHRES NO3 TAM NO2 PO4 PHVAL

*** x

- x mg/l mg/l mg/l mg/l ph units

1 20 0.20 0.06 0. 0.08 7.

END NUT

- DINIT

PLNK

- FLAGS

*** RCHRES Plankton flags

*** x

- x PHYF ZOOF BALF SDLT AMRF DECF NSFG ZFOO BNP

1 20 1 0 1 0 0 0 1 2 0

END PLNK

- FLAGS

PLNK -PARM1

***RC HRES RATCLP NONREF LITSED ALNPR EXTB MALGR

*** x

- x l/mg.ft /ft /hr

1 0.82 0.50 0. 0.70 1.20 0.085

2 0.82 0.50 0. 0.40 1.00 0.085

3 7 0.82 0.50 0. 0.70 1.20 0.08 5

8 0.82 0.50 0. 0.70 1.00 0.085

9 10 0.82 0.50 0. 0.70 1.20 0.085

11 12 0.82 0.50 0. 0.70 1.00 0.085

13 14 0.82 0.50 0. 0.70 0.30 0.085

15 0.82 0.50 0. 0.70 1.00 0.085

16 18 0.82 0.50 0. 0.70 0.30 0.085

20 0.82 0.50 0. 0.70 1.00 0.085

END PLNK -PA RM1

PLNK -PARM2

***RC HRES CMMLT CMMN CMMNP CMMP TALGRH TALGRL TALGRM

*** x

- x ly/min mg/l mg/l mg/l deg F deg F deg F

1 20 0.033 0.045 0.0284 0.015 95. 38. 75.

END PLNK -PARM2

PLNK -PARM3

*** RCHRES ALR20 ALDH ALDL OXALD NALDH PALDH

*** x

- x /hr /hr /hr /hr mg/l mg/l

1 0.005 0.01 0.001 0.03 0.01 0.002

2 0.005 0.01 0.001 0.03 0.01 0.002

3 20 0.005 0.01 0.001 0.03 0.01 0.002

END PLNK -PARM3

PHYTO-PARM

*** RCHRES SEED MXSTAY OREF CLALDH PHYSET REFSET

*** x

- x mg/ l mg/l ft3/s ug/l ft/hr ft/hr

1 0.04 0.1 100. 50. 0.000 0.000

2 0.04 0.1 100. 50. 0.001 0.001

3 7 0.04 0.1 100. 50. 0.000 0.000

8 0.04 0.1 100. 50. 0.000 0.000FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 238

Florida Department of Environmental Protection

9 10 0.04 0.1 100. 50. 0.000 0.000

11 0.04 0.1 100. 50. 0.000 0.000

12 14 0.04 0.1 100. 50. 0.000 0.000

15 0.04 0.1 100. 50. 0.000 0.000

16 0.04 0.1 100. 50. 0.000 0.000

17 0.04 0.1 100. 50. 0.000 0.000

18 0.04 0.1 100. 50. 0.000 0.000

20 0.04 0.1 100. 50. 0.000 0.000

END PHYTO -PARM

BENAL- PARM

RCHRES MBAL CFBALR CFBALG ***

#

- # mg/m2 ***

1 20 1000. 1.00 1.0

END BENAL

- PARM

PLNK

- INIT

*** RCHRES PHYTO ZOO BENAL ORN ORP ORC

*** x

- x mg/l org/l mg/m2 mg/l mg/l mg/l

1 20 0.5 0.03 500. 0.7 0.03 9.5

END PLNK

- INIT

END RC HRES

FTABLES

FTABLE 1

rows cols (Deep Creek Wetland) ***

11 4

depth area volume outflow1 ***

0. 0. 0. 0.

1. 25.3 21.2 6.9

2. 33.3 50.5 24.2

3. 41.3 87.8 52.5

4. 49.4 133.1 93.1

5. 57.4 186.5 147.5

6. 964.2 697.3 274.4

7. 1871.0 2114.9 605.5

8. 2777.8 4439.3 1256.7

9 . 3684.6 7670.5 2323.5

10. 4591.4 11808.4 3890.9

END FTABLE 1

FTABLE 116

rows cols ***

7 4

depth area volume outflow1 ***

0. 0. 0. 0.

0 .5 6.5 3.3 1.9

1.0 6.6 6.5 2.7

2.0 6.7 13.2 3.8

3.0 6.9 20.0 8.5

4.0 7.0 27.0 16.1

5.0 7.1 34.0 25.7

END FTABLE116

FTABLE 117

rows cols ***

7 4

depth area volume outflow1 ***

0. 25.1 0.0 0.0

8. 27.2 209.2 0.0FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 239

Florida Department of Environmental Protection 9. 27.5 236.5 5.7

10. 2 7.7 264.1 8.0

11. 28.0 292.0 25.2

12. 28.3 320.2 54.8

13. 28.5 348.6 92.6

END FTABLE117

FTABLE 2

rows cols (Lake Ashby) ***

7 4

depth area volume outflow1 ***

0. 578.2 0.0 0.0

1.0 637.7 607.9 0.0

3.0 756.9 2002.5 0.0

5.0 876.0 3635.4 0.0

6.0 976.0 4561.4 240.0

7.0 1076.0 5587.4 1500.0

8.0 1176.0 6713.4 2700.0

END FTABLE 2

FTABLE 127

rows cols ***

7 4

depth area volume outflow1 ***

0. 3.7 0.0 0.0

8. 4.5 32.5 0.0

9. 4.6 37.1 0.9

10. 4.7 41.8 1.3

11. 4.8 46.6 4.3

12. 4.9 51.5 9.4

13. 5.0 56.5 15.9

END FTABLE127

FTABLE 3

r ows cols (Deep Creek Diversion) ***

10 4

depth area volume outflow1 ***

0. 0. 0. 0.

0.5 20.0 9.5 2.8

1.0 22.1 20.0 9.2

2.0 26.3 44.2 30.2

3.0 30.5 72.6 62.0

5.0 38.9 142.0 159.3

8.0 51.4 277.4 399.5

10.0 59.8 388.6 630.7

12.0 657.6 1345.0 1203.9

15.0 1195.6 4124.8 3126.1

E ND FTABLE 3

FTABLE 136

rows cols ***

7 4

depth area volume outflow1 ***

0. 0. 0. 0.

0.5 9.2 4.6 2.7

1.0 9.3 9.2 3.8

2.0 9.4 18.5 5.4

3.0 9.6 28.0 11.9

4.0 9.7 37.7 22.5

5.0 9.9 47.5 35.9

END FTABLE136FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 240

Florida Department of Environmental Protection FTABLE 137

rows cols ***

7 4

depth area volume outflow1 ***

0. 17.2 0.0 0.0

8. 19.0 144.8 0.0

9. 19.2 163.9 4.0

10. 19.4 183.2 5.6

11. 19.6 202.7 17.6

12. 19.9 222.5 38.4

13. 20.1 242.6 64.9

END FTABLE137

FTABLE 4

rows cols (Deep Creek 2) ***

10 4

depth area volume outflow1 ***

0. 0. 0. 0.

0.5 11.5 5.4 0.0

1.0 12.9 51.5 6.6

2.0 15.8 175.8 22.1

3.0 18.7 343.1 46.1

5.0 24.6 786.4 121.7

8.0 33.3 2173.2 314.4

10.0 594.8 4801.4 688.9

12.0 1156.3 8552.5 1753.6

15.0 1998.6 12285.0 5482.0

END FTABLE 4

FTABLE 147

rows cols ***

7 4

depth area volume outflow1 ***

0. 2.7 0.0 0.0

8. 3.5 24.7 0.0

9. 3.5 28.3 0.7

10. 3.6 31.9 1.0

11. 3.7 35.6 3.3

12. 3.8 39.5 7.3

14. 4.0 47.4 18.4

END FTABLE147

FTABLE 5

rows cols (Deep Creek 3) ***

10 4

depth area volume outflow1 ***

0. 0. 0. 0.

0.5 20.3 9.6 2.9

1.0 22.4 20.3 9.3

2.0 26.7 44.9 30.9

3.0 30.9 73.7 63.9

5.0 39.4 144.0 165.0

8.0 52.2 281.4 418.1

10.0 60.7 394.2 662.3

12.0 667.2 1364.7 1253 .3

15.0 1213.0 4185.0 3207.9

END FTABLE 5

FTABLE 6

rows cols (Cow Creek) ***

8 4

depth area volume outflow1 ***FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 241

Florida Department of Environmental Protection 0. 0. 0. 0.

1.0 1.0 4.2 0.3

2.0 13.4 10.0 8.2

3.0 20.0 26.7 32.0

4.0 154.9 140.9 170.2

6.0 411.4 707.2 684.3

8.0 667.8 1786.4 1883.4

10.0 924.3 3378.5 4014.7

END FTABLE 6

FTABLE 167

rows cols ***

7 4

depth area volume outflow1 ***

0. 8.9 0.0 0.0

8. 10.2 76.6 0.0

9. 10.4 86.9 2.1

10. 10.5 97.3 3.0

11. 10.7 108.0 9.6

12. 10.9 118.8 20.9

13. 11.0 129.8 35.4

END FTABLE167

FTABLE 7

rows cols (Underhill/Gopher Slough) ***

8 4

dep th area volume outflow1 ***

0. 0.0 0.0 0.

1. 207.2 186.5 0.

2. 292.0 412.2 4.2

3. 743.5 818.7 13.9

4. 1105.7 1778.3 48.8

5. 1408.9 2978.6 106.2

6. 1621.6 4590.1 188.6

7. 1621.6 6211.7 299.1

END FTABLE 7

FTABLE 8

rows cols (Lake Harney) ***

18 4

depth area volume outflow1 ***

0.0 76.7 0.0 0.

1.0 3031.9 1632.2 0.

2.0 3727.4 5031.4 0.

3.0 4170.3 8995.8 0.

4.0 4461.4 13320.8 0.

5.0 4701.8 17901.2 0.

6.0 5056.9 22773.0 0.

7.0 5477.3 28036.0 0.

8.0 5855.4 33707.9 400.

9.0 6216.9 39740.2 900.

10.0 6620.3 46155.1 1500.

11.0 7425.0 53101.6 2200.

12.0 9323.7 61210.5 2900.

13.0 10856.4 71630.3 3800.

14.0 11559.9 82830.3 4800.

15.0 12152.9 94718.3 6300.

16.0 12746.0 106606.3 8100.

17.0 13339.1 118494.2 10000.

END FTABLE 8

FTABLE 186FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 242

Florida Department of Environmental Protection rows cols ***

7 4

depth area volume outflow1 ***

0. 0. 0. 0.

0.5 0.3 0.1 0.1

1.0 0.3 0.3 0.1

2.0 0.3 0.6 0.2

3.0 0.4 0.9 0.4

4.0 0.4 1.3 0.8

5.0 0.4 1.7 1.3

END FTABLE186

FTABLE 187

rows cols ***

7 4

depth area volume outflow1 ***

0. 11.4 0.0 0.0

8. 12.8 96.9 0.0

9. 13.0 109.8 2.7

10. 13.2 122.9 3.8

11. 13.4 136.3 12.0

12. 13.6 149.8 26.2

13. 13.7 163.5 44.2

END FTABLE187

FTABLE 9

rows cols (SJR upstream of Harney) ***

27 4

depth area volume outflow1 ***

0. 0.4 0.0 0.

1. 1.2 1.0 0.

2 . 2.7 2.5 0.

3. 5.3 6.3 0.

4. 8.5 13.1 0.

5. 14.3 24.2 0.

6. 21.4 42.7 0.

7. 23.8 65.7 0.

8. 31.8 93.9 0.

9. 42.0 131.0 0.

10. 47.2 175.9 0.

11. 64.6 231.3 0.

12. 85.6 307.1 0.

13. 106.2 404.4 0.

14. 123.4 523.3 0.

15. 132.3 650.5 0.

16. 146.3 791.4 0.

17. 160.1 943.2 400.

18. 211.5 1127.7 900.

19. 246.4 1367.0 1500.

20. 287.2 1617.9 2200

. 21. 336.5 1930.6 2900.

22. 375.7 2287.2 3800.

23. 391.5 2672.6 4800.

24. 398.3 3068.1 6300.

25. 404.9 3470.9 8100.

26. 406.8 3876.8 10000.

END FT ABLE 9

FTABLE 196

rows cols ***

7 4

depth area volume outflow1 ***FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 243

Florida Department of Environmental Protection 0. 0. 0. 0.

0.5 0.5 0.3 0.2

1.0 0.6 0.5 0.2

2.0 0.6 1.1 0.3

3.0 0.6 1.7 0.7

4.0 0.7 2.4 1.5

5.0 0.7 3.1 2.3

END FTABLE196

FTABLE 197

rows cols ***

7 4

depth area volume outflow1 ***

0. 2.1 0.0 0.0

8. 2.8 19.6 0.0

9. 2.9 22.5 0.6

10. 2.9 25.4 0.8

11. 3.0 28.4 2.7

12. 3.1 31.5 6.0

13. 3.2 34.7 10.1

END FTABLE197

FTABLE 10

rows cols (Chain of Lakes) ***

8 4

depth area volume outflow1 ***

0. 0. 0. 0.

0.2 394. 79. 0.

0.5 394. 197. 0.

1.0 394. 394. 0.

2.0 394. 788. 40.3

3.0 394. 1182. 114.9

4.0 394. 1576. 225.8

5.0 394. 1970. 373.6

END FTABLE 10

FTABLE 206

rows cols ***

7 4

depth area volume outflow1 ***

0. 0. 0. 0.

0.5 5.3 2.6 1.6

1.0 5.3 5.3 2.2

2.0 5.5 10.7 3.1

3.0 5.6 16.2 6.9

4.0 5.7 21.8 13.1

5.0 5.8 27.6 20.8

END FTABLE206

FTABLE 207

rows cols * **

7 4

depth area volume outflow1 ***

0. 0.3 0.0 0.0

8. 0.5 3.0 0.0

9. 0.5 3.6 0.1

10. 0.6 4.2 0.2

11. 0.6 4.8 0.6

12. 0.7 5.5 1.3

13. 0.7 6.2 2.1

END FTABLE207FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 244

Florida Department of Environmental Protection FTABLE 11

rows cols (SJR downstream of Harney) ***

29 4

depth area volume outflow1 ***

0. 4.4 0.0 0.

1. 12.2 10.0 0.

2. 26.8 25.4 0.

3. 52.7 62.8 0.

4. 85.2 130.8 0.

5. 142.9 241.9 0.

6. 214.2 427.2 0.

7. 238.2 656.8 0.

8. 318.0 938.9 0.

9. 420.1 1310.1 0.

10. 471.6 1758.9 0.

11. 645.5 2312.5 0.

12. 856.2 3070.8 0.

13. 1062.2 4044.2 0.

14. 1233.6 5233.0 0.

15. 1323.4 6504.9 0.

16. 1462.9 7913.8 0.

17. 1600.6 9431.7 0.

18. 2115.4 11277.4 0.

19. 2464.0 13669.9 400.

20. 2872.5 16179.3 900.

21. 3365.0 19306.3 1500.

22. 3757.0 22872.3 2200.

23. 3914.6 26725.8 2900.

24. 3982.5 30681.4 3800.

25. 4049.4 34709.0 4800.

26. 4067.9 38768.2 6300.

27. 4067.9 42836.1 8100.

28. 4067.9 46904.1 10000.

END FTABLE 11

FTABLE 216

rows cols ***

7 4

depth area volume ou tflow1 ***

0. 0. 0. 0.

0.5 5.8 2.9 1.7

1.0 5.9 5.8 2.4

2.0 6.0 11.7 3.4

3.0 6.1 17.8 7.5

4.0 6.2 23.9 14.3

5.0 6.4 30.2 22.8

END FTABLE216

FTABLE 217

rows cols ***

7 4

depth area volume outflow1 ***

0. 38.9 0.0 0.0

8. 41.5 321.8 0. 0

9. 41.8 363.5 8.6

10. 42.2 405.5 12.2

11. 42.5 447.9 38.3

12. 42.8 490.6 83.3

14. 43.5 577.1 207.9

END FTABLE217

***FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 245

Florida Department of Environmental Protection FTABLE 12

rows cols (Unnamed wetlands) ***

8 4

depth area volume outflow1 ***

0. 0.0 0.0 0.

1. 281.6 274.3 0.

2. 430.7 604.3 10.

3. 484.9 1052.8 110.

4. 556.7 1571.7 310.

5. 734.6 2188.5 620.

6. 751.8 2932.6 950.

7. 758.3 3687.9 1250.

END FTABLE 12

FTABLE 226

rows cols ***

7 4

d epth area volume outflow1 ***

0. 0. 0. 0.

0.5 0.5 0.2 0.1

1.0 0.5 0.5 0.2

2.0 0.5 1.0 0.3

3.0 0.6 1.6 0.7

4.0 0.6 2.2 1.3

5.0 0.7 2.8 2.1

END FTABLE226

FTABLE 227

rows cols ***

7 4

depth area volume outflow1 ***

0. 4.5 0.0 0.0

8. 5.5 40.0 0.0

9. 5.6 45.5 1.2

10. 5.7 51.2 1.6

11. 5.8 57.0 5.2

12. 5.9 62.9 11.4

14. 6.2 75.1 28.5

END FTABLE227

FT ABLE 13

rows cols (Lake Gleason/Big) ***

8 5

depth area volume outflow1 outflow2 *** 50 in/ac.yr

0. 159. 0. 0. 0.

1.0 179. 169. 0. 1.03

5.0 258 . 1043. 1.0 1.48

6.0 278. 1312. 1.5 1.60

7.0 299. 1600. 2.0 1.72

8.0 318. 1908. 11.6 1.83

9.0 338. 2236. 46.3 1.95

10.0 358. 2584. 192.0 2.06

END FTABLE 13

FTABLE 236

rows cols ***

7 4

depth area volume outflow1 ***

0. 0. 0. 0.

0.5 8.5 4.2 2.5

1 .0 8.6 8.5 3.5

2.0 8.7 17.1 5.0FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 246

Florida Department of Environmental Protection 3.0 8.9 25.9 11.0

4.0 9.0 34.9 20.8

5.0 9.2 44.0 33.2

END FTABLE236

FTABLE 237

rows cols ***

7 4

depth area volume outflow1 ***

0. 2.5 0.0 0.0

8. 3.2 22.6 0.0

9. 3.3 25.8 0.7

10. 3.4 29.2 1.0

11. 3.4 32.6 3.1

12. 3.5 36.1 6.8

13. 3.6 39.8 11.4

END FTABLE237

FTABLE 14

rows cols (Lake Chain) ***

8 4

depth area volume outflow1 ***

0. 2 525. 0. 0.

1.0 2525. 2525. 0.

5.0 2525. 12625. 0.

6.0 2525. 15150. 50.

7.0 2525. 17675. 100.

8.0 2525. 20200. 300.

9.0 2525. 22725. 550.

10.0 2525. 25250. 1950.

END FTABLE 14

FTABLE 246

rows cols ***

7 4

depth area volume outflow1 ***

0. 0. 0. 0.

0.5 122.1 61.0 35.6

1.0 122.4 122.1 50.4

2.0 123.0 244.8 71.3

3.0 123.5 368.1 155.1

4.0 124.1 491.9 292.6

5.0 124.7 616.3 465.0

END FTABLE246

FTABLE 247

rows cols ***

7 4

depth area volume outflow1 ***

0. 49.5 0.0 0.0

8. 52.4 407.5 0.0

9. 52.8 460.1 10.9

10. 53.1 513.1 15.4

11. 53.5 566.5 48.2

12. 53.9 620.2 104.9

13. 54.3 674.3 177.0

END FTABLE247

FTABLE 15

rows cols (Lake Monroe) ***

23 4

depth area volume outf low1 ***FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 247

Florida Department of Environmental Protection 0. 0.2 0.0 0.

1. 2.0 1.1 0.

2. 5.4 4.2 0.

3. 15.0 14.1 0.

4. 27.1 33.1 0.

5. 62.4 69.4 0.

6. 145.6 164.2 0.

7. 567.7 391.4 0.

8. 4512.4 3087.8 0.

9. 6179.3 8525.2 0.

10. 6886.8 15060.9 0.

11. 7365.3 22149.4 0.

12. 7879.3 29734.6 0.

13. 8438.8 37861.8 0.

14. 9464.6 46790.7 0.

15. 10497.8 56622.6 585.

16. 11321.1 67564.8 1829.

17. 11907.0 79138.7 3274.

18. 12655.5 91373.6 4919.

19. 13910.6 104357.7 6765.

20. 15027.8 119152.2 8812.

21. 15371.5 134310.8 11060.

22. 15715.2 149469.5 13508.

END FTABLE 15

FTABLE 256

rows cols ***

7 4

depth area volume outflow1 ***

0. 0. 0. 0.

0.5 51.7 25.8 15.1

1.0 51.9 51.7 21.3

2.0 52.2 103.7 30.2

3.0 52.6 156.1 65.8

4.0 53.0 208.9 124.4

5.0 53.3 262.1 197.8

END FTABLE256

FTABLE 257

rows cols ***

7 4

depth area volume outflow1 ***

0. 120.3 0.0 0.0

8. 124.8 980.3 0.0

9. 125.4 1105.4 25.8

10. 125.9 1231.1 36.5

11. 126.5 1357.3 114.2

12. 127.1 1484.2 248.1

13. 127.7 1611.6 418. 6

END FTABLE257

FTABLE 16

rows cols (Lake Chain) ***

8 5

depth area volume outflow1 outflow2 *** 80 in/ac.yr

0. 100. 0. 0. 0.

1.0 110. 105. 0. 1 .01

5.0 150. 625. 1.0 1.38

6.0 160. 780. 1.5 1.47

7.0 170. 945. 2.0 1.57

8.0 180. 1120. 11.6 1.66

9.0 190. 1305. 26.3 1. 75FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 248

Florida Department of Environmental Protection 10.0 200. 1500. 150. 1.84

END FTABLE 16

FTABLE 266

rows cols ***

7 4

depth area volume outflow1 ***

0. 0. 0. 0.

0.5 28.3 14.1 8.3

1.0 28.5 28.3 11.7

2.0 28.8 57.0 16.6

3.0 29.0 85.9 36.2

4.0 29.3 115.0 68.5

5.0 29.6 144.5 109.0

END FTABLE266

FTABLE 267

ro ws cols ***

7 4

depth area volume outflow1 ***

0. 1.6 0.0 0.0

8. 2.2 15.0 0.0

9. 2.2 17.2 0.5

10. 2.3 19.5 0.7

11. 2.4 21.9 2.1

12. 2.5 24.3 4.7

13. 2.5 26.9 7.9

END FTABLE267

FTABLE 17

rows cols (Crystal Lake Chain) ***

14 4

depth area volume outflo w1 ***

0. 10.0 0.0 0.

1. 11.2 10.6 0.

2. 66.3 22.3 0.

3. 144.9 92.9 0.

4. 161.7 246.2 0.

5. 178.4 416.2 0.

6. 195.2 603.0 0.

7. 242.2 821.7 0.

8. 308.0 1096.8 0.

9. 336.1 1418.8 0.

10. 364.2 1769.0 0.

12. 410.7 2544.0 27.

14. 459.3 3414.0 52.

16. 537.7 4411.0 70.

END FTABLE 17

FTABLE 276

rows cols ***

7 4

depth area volume outflow1 ***

0. 0. 0. 0.

0.5 53.5 26.7 15.6

1.0 53.6 53.5 22.1

2.0 54.0 107.3 31.2

3.0 54.4 161.5 68.1

4.0 54.8 216.1 128.6

5.0 55.1 271.0 204.5

END FTABLE276FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 249

Florida Department of Environmental Protection

FTA BLE 277

rows cols ***

7 4

depth area volume outflow1 ***

0. 28.3 0.0 0.0

8. 30.5 235.0 0.0

9. 30.8 265.7 6.3

10. 31.0 296.6 9.0

11. 31.3 327.9 28.2

12. 31.6 359.4 61.4

13. 31.9 391.2 103.7

END FTABLE277

FTABLE 18

rows cols (Lockhart

- Smith Canal) ***

12 4

depth area volume outflow1 ***

0. 0. 0. 0.

0.5 11.5 4.6 3.4

1. 16.2 11.5 12.7

2. 25.7 32.5 52.6

3. 35.2 62.9 128.4

4. 44.7 102.9 248.4

5. 54.1 152.3 420.0

6. 178.7 268.7 720.1

7. 303.2 509.6 1172.6

8. 427.7 875.1 1834.3

9. 552.2 1365.0 2752.3

10. 676.8 1979.5 3968.8

END FTABLE 18

FTABLE 286

rows cols ***

7 4

depth area volume outflow1 ***

0. 0. 0. 0.

0.5 34.6 17.3 10.1

1.0 34.8 34.6 14. 3

2.0 35.1 69.6 20.3

3.0 35.4 104.8 44.2

4.0 35.7 140.4 83.6

5.0 36.3 176.2 133.0

END FTABLE286

FTABLE 287

rows cols ***

7 4

depth area volume outflow1 ***

0. 71.4 0.0 0.0

8. 74.8 584.8 0.0

9. 75.3 659.9 15.5

10. 75.7 735.5 21.9

11. 76.2 811.5 68.7

12. 76.6 887.9 149.3

13. 77.7 964.8 252.0

END FTABLE287

FTABLE 20

rows cols (SJR below Monroe) ***

27 4

depth area volume outflow1 ***

0. 2.2 0.0 0.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 250

Florida Department of Environmental Protection 1. 6.1 5.0 0.

2. 13.4 12.7 0.

3. 26.3 31.4 0.

4. 42.6 65.4 0.

5. 71.4 121.0 0.

6. 107.1 213.6 0.

7. 1 19.1 328.4 0.

8. 159.0 469.4 0.

9. 210.0 655.0 0.

10. 235.8 879.4 0.

11. 322.8 1156.3 0.

12. 428.1 1535.4 0.

13. 531.1 2022.1 0.

14. 616.8 2616.5 0.

15. 661.7 3252.4 0.

16. 731.5 3956.9 0.

17. 800.3 4715.9 0.

18. 1057.7 5638.7 0.

19. 1232.0 6834.9 585.

20. 1436.2 8089.7 1829.

21. 1682.5 9653.2 3274.

22. 1878.5 11436.2 4919.

23. 1957.3 13362.9 6765.

24. 1991.3 15340.7 8812.

25. 2024.7 17354.5 11060.

26. 2034.0 19384.1 13508.

END FTABLE 20

FTABLE 306

rows cols ***

7 4

depth area volume outflow1 ***

0. 0. 0. 0.

0.5 4.5 2.3 1.3

1.0 4.6 4.5 1.9

2.0 4.7 9.2 2.7

3.0 4.8 13.9 5.9

4.0 4.9 18.8 11.3

5.0 5.0 23.8 18.0

END FTABLE306

FTABLE 307

rows cols ***

7 4

depth area volume outflow1 ***

0. 31.8 0.0 0.0

8. 34.1 263.8 0.0

9. 34.4 298.1 7.1

10. 34.7 332.7 10.0

11. 35.0 367.6 31.5

12. 35.3 402.8 68.6

13. 35.6 438.4 115.9

END FTABLE307

END FTABLES

COPY

TIMESERIES

Copy

- opn***

*** x

- x NPT NMN

3 0 6

END TIMESERIESFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 251

Florida Department of Environmental Protection END COPY

MONTH

- DATA

MONTH

- DATA 10

*** atmospheric deposition fluxes (lb/acre/day) of NO3 -N

0.00270.00270.00270.00270.00270.00270.00270.00270.00270.00270.00270.0027

END MONTH

- DATA 10

MONTH

- DATA 11

*** atmospheric wet deposition conc. (mg/l) of NO3 -N

0 .32250.32250.32250.32250.32250.32250.32250.32250.32250.32250.32250.3225

END MONTH

- DATA 11

MONTH

- DATA 20

*** atmospheric deposition fluxes (lb/acre/day) of NH3 -N

0.00090.00090.00090.00090.00090.00090.00090.00090.00090.00090.00090.0009

E ND MONTH

- DATA 20

MONTH

- DATA 21

*** atmospheric wet deposition conc. (mg/l) of NH3 -N

0.10750.10750.10750.10750.10750.10750.10750.10750.10750.10750.10750.1075

END MONTH

- DATA 21

MONTH

- DATA 30

*** atmospheric deposition fluxes (lb/acre/day) of PO4 -P

0.00050.00050.00050.00050.00050.00050.00050.00050.00050.00050.00050.0005

END MONTH

- DATA 30

MONTH

- DATA 31

*** atmospheric wet deposition conc. (mg/l) of PO4 -P

0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009

END MONTH

- DATA 31

END MONTH

- DATA

EXT SOURCES

<- Volume

- > <Member> SsysSgap<

-- Mult

-- >Tran <

- Target vols> <

- Grp> <

- Member

- > ***

<Name> x <Name> x tem strg<

- factor

- >strg <Name> x x <Name> x x ***

*** PERLND

WDM2 4051 PREC ENGL SAME PERLND 101 113 EXTNL PREC

WDM2 4052 PREC ENGL SAME PERLND 121 133 EXTNL PREC

WDM2 4053 PREC ENGL SAME PERLND 141 153 EXTNL PREC

WDM2 4054 PREC ENGL SAME PERLND 161 173 EXTNL PREC

WD M2 4055 PREC ENGL SAME PERLND 181 193 EXTNL PREC

WDM2 4056 PREC ENGL SAME PERLND 201 213 EXTNL PREC

WDM2 4057 PREC ENGL SAME PERLND 221 233 EXTNL PREC

WDM2 4058 PREC ENGL SAME PERLN D 241 253 EXTNL PREC

WDM2 4059 PREC ENGL SAME PERLND 261 273 EXTNL PREC

WDM2 4060 PREC ENGL SAME PERLND 281 293 EXTNL PREC

WDM2 4061 PREC ENGL SAME PERLND 301 313 EXTNL PREC

WDM2 4151 PREC ENGL SAME PERLND 501 513 EXTNL PREC

WDM2 4152 PREC ENGL SAME PERLND 521 533 EXTNL PREC

WDM2 4153 PREC ENGL SAME PERLND 541 553 EXTNL PREC

WDM2 4154 PREC ENGL SAME PERLND 561 573 EXTNL PREC

WDM2 4155 PREC ENGL SAME PERLND 581 593 EXTNL PREC

WDM2 4156 PREC ENGL SAME PERLND 601 613 EXTNL PREC

WDM2 4157 PREC ENGL SAME PERLND 621 633 EXTNL PREC

WDM2 4158 PREC ENGL SAME PER LND 641 653 EXTNL PREC

WDM2 4159 PREC ENGL SAME PERLND 661 673 EXTNL PREC

WDM2 4801 ATEM ENGL SAME PERLND 101 673 EXTNL GATMP

WDM2 4803 DEWP ENGL SAME PERLND 101 673 EXTNL DTMPGFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 252

Florida Department of Environmental Protection WDM2 4804 WIND ENGL SAME PERLND 101 673 EXTNL WINMOV

WDM2 4811 SOLR ENGL SAME PERLND 101 673 EXTNL SOLRAD

WDM2 4802 CLOU ENGL SAME PERLND 101 673 EXTNL CLOUD

WDM2 4822 EVAP ENGL 0.76SAME PERLND 101 673 EXTNL PETINP

*** IMPLND

WDM2 4051 PREC ENGL SAME IMPLND 101 104 EXTNL PREC

WDM2 4052 PREC ENGL SAME IMPLND 121 124 EXTNL PREC

WDM2 4053 PREC ENGL SAME IMPLND 141 144 EXTNL PREC

WDM2 4054 PREC ENGL SAME IMPLND 161 164 EXTNL PREC

WDM2 4055 PREC ENGL SAME IMPLND 181 184 EXTNL PREC

WDM2 4056 PREC ENGL SAME IMPLND 201 204 EXTNL PREC

WDM2 4057 PREC ENGL SAME IMPLND 221 224 EXTNL PR EC

WDM2 4058 PREC ENGL SAME IMPLND 241 244 EXTNL PREC

WDM2 4059 PREC ENGL SAME IMPLND 261 264 EXTNL PREC

WDM2 4060 PREC ENGL SAME IMPLND 281 284 EXTNL PREC

WDM2 4061 PREC ENGL SAME IMPLND 301 304 EXTNL PREC

WDM2 4151 PREC ENGL SAME IMPLND 501 504 EXTNL PREC

WDM2 4152 PREC ENGL SAME IMPLND 521 524 EXTNL PREC

WDM2 4153 PREC ENGL SAME IMPLND 541 544 EXTNL PREC

WDM2 4154 PREC ENGL SAME IMPLND 561 564 EXTNL PREC

WDM2 4155 PREC ENGL SAME IMPLND 581 584 EXTNL PREC

WDM2 4156 PREC ENGL SAME IMPLND 601 604 EXTNL PREC

WDM2 4157 PREC ENGL SAME IMPLND 621 624 EXTNL PREC

WDM2 4158 PREC ENGL SAME IMPLND 641 644 EXTNL PREC

WDM2 4159 PREC ENGL SAME IMPLND 661 664 EXTNL PREC

WDM2 4801 ATEM ENGL SAME IMPLND 101 664 EXTNL GATMP

WDM2 4803 DEWP ENGL SAME IMPLND 101 664 EXTNL DTMPG

WDM2 4804 WIND ENGL SAME IMPLND 101 664 EXTNL WINMOV

WDM2 4811 SOLR ENGL SAME IMPLND 101 664 EXTNL SOLRAD

WDM2 4802 CLOU ENGL SAME IMPLND 101 664 EXTNL CLOUD

WDM2 4 822 EVAP ENGL 0.76SAME IMPLND 101 664 EXTNL PETINP

*** RCHRES

WDM2 4051 PREC ENGL SAME RCHRES 1 EXTNL PREC

WDM2 4051 PREC ENGL SAME RCHRES 116 117 EXTNL PREC

WDM2 4052 PREC ENGL SA ME RCHRES 2 EXTNL PREC

WDM2 4052 PREC ENGL SAME RCHRES 126 127 EXTNL PREC

WDM2 4053 PREC ENGL SAME RCHRES 3 EXTNL PREC

WDM2 4053 PREC ENGL SAME RCHRES 136 137 EXTNL PREC

WDM2 4054 PREC ENGL SAME RCHRES 4 EXTNL PREC

WDM2 4054 PREC ENGL SAME RCHRES 146 147 EXTNL PREC

WDM2 4055 PREC ENGL SAME RCHRES 5 EXTNL PREC

WDM2 4055 PREC ENGL SAME RCHRES 156 157 EXTN L PREC

WDM2 4056 PREC ENGL SAME RCHRES 6 EXTNL PREC

WDM2 4056 PREC ENGL SAME RCHRES 166 167 EXTNL PREC

WDM2 4057 PREC ENGL SAME RCHRES 7 EXTNL PREC

WDM2 4057 PREC ENGL SAME RCHRES 176 177 EXTNL PREC

WDM2 4058 PREC ENGL SAME RCHRES 8 EXTNL PREC

WDM2 4058 PREC ENGL SAME RCHRES 186 187 EXTNL PREC

WDM2 4059 PREC ENGL SAME RCHRES 9 EXTNL PREC

WDM2 4059 PRE C ENGL SAME RCHRES 196 197 EXTNL PREC

WDM2 4060 PREC ENGL SAME RCHRES 10 EXTNL PREC

WDM2 4060 PREC ENGL SAME RCHRES 206 207 EXTNL PREC

WDM2 4061 PREC ENGL SAME RCHRES 11 EX TNL PREC

WDM2 4061 PREC ENGL SAME RCHRES 216 217 EXTNL PREC

WDM2 4151 PREC ENGL SAME RCHRES 12 EXTNL PREC

WDM2 4151 PREC ENGL SAME RCHRES 226 227 EXTNL PREC

WDM2 4152 PREC ENGL SAME RCHRES 13 EXTNL PREC

WDM2 4152 PREC ENGL SAME RCHRES 236 237 EXTNL PREC

WDM2 4153 PREC ENGL SAME RCHRES 14 EXTNL PREC

WDM2 4153 PREC ENGL SAME RCHRES 246 247 EXTNL PREC

WDM2 4154 P REC ENGL SAME RCHRES 15 EXTNL PREC

WDM2 4154 PREC ENGL SAME RCHRES 256 257 EXTNL PRECFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 253

Florida Department of Environmental Protection WDM2 4155 PREC ENGL SAME RCHRES 16 EXTNL PREC

WDM2 4155 PREC ENGL SAME RCHRES 266 267 EXTNL PREC

WDM2 4156 PREC ENGL SAME RCHRES 17 EXTNL PREC

WDM2 4156 PREC ENGL SAME RCHRES 276 277 EXTNL PREC

WDM2 4157 PREC ENGL SAME RCHRES 18 EXTNL PREC

WDM2 4157 PREC ENGL SAME RCHRES 286 287 EXTNL PREC

WDM2 4159 PREC ENGL SAME RCHRES 20 EXTNL PREC

WDM2 4159 PREC ENGL SAME RCHRES 306 307 EXTNL PREC

WDM2 4801 ATEM ENGL SAME RCHRES 1 307 EXTNL GATMP

WDM2 48 03 DEWP ENGL SAME RCHRES 1 307 EXTNL DEWTMP

WDM2 4804 WIND ENGL SAME RCHRES 1 307 EXTNL WIND

WDM2 4811 SOLR ENGL SAME RCHRES 1 307 EXTNL SOLRAD

WDM2 4802 CLOU ENGL SAME RCHRE S 1 307 EXTNL CLOUD

WDM2 4822 EVAP ENGL 0.76SAME RCHRES 1 307 EXTNL POTEV

***

*** Observed flow/loads at SJR above Lake Harney (ac.ft/hr;lb/hr)

WDM1 9002 IVOL ENGL SAME RCHRES 8 INFLOW IVOL

WDM1 9011 WT E NGL SAME RCHRES 8 INFLOW IHEAT

WDM1 9012 DO ENGL SAME RCHRES 8 INFLOW OXIF 1

WDM1 9013 TSS ENGL 0.5SAME RCHRES 8 INFLOW ISED 2

WDM1 9013 TSS ENGL 0.5SAME RCHRES 8 INFLOW ISED 3

WDM1 9014 NH4 ENGL SAME RCHRES 8 INFLOW NUIF1 2

WDM1 9015 NOX ENGL SAME RCHRES 8 INFLOW NUIF1 1

WDM1 9016 ORN ENGL SAME RCHRES 8 INFLOW PKIF 3

WDM1 9017 PO4 ENGL SAME RCHRES 8 INFLOW NUIF1 4

WDM1 9018 ORP ENGL SAME RCHRES 8 INFLOW PKIF 4

WDM1 9019 ORC ENGL SAME RCHRES 8 INFLOW PKIF 5

*** Observed flow/loads at Lake Jesup Outlet to SJR (ac.ft/hr)

WDM1 9102 IVOL ENGL SAME RCHRES 15 INFLOW IVOL

WDM1 9121 WT ENGL SAME RCHRES 15 INFLOW IHEAT

WDM1 9122 DO ENGL SAME RCHRES 15 INFLOW OXIF 1

WDM1 9123 TSS ENG L 0.5SAME RCHRES 15 INFLOW ISED 2

WDM1 9123 TSS ENGL 0.5SAME RCHRES 15 INFLOW ISED 3

WDM1 9124 NH4 ENGL SAME RCHRES 15 INFLOW NUIF1 2

WDM1 9125 NOX ENGL SAME RCHRES 15 INFLOW NUIF1 1

WDM1 9126 ORN ENGL SAME RCHRES 15 INFLOW PKIF 3

WDM1 9127 PO4 ENGL SAME RCHRES 15 INFLOW NUIF1 4

WDM1 9128 ORP ENGL SAME RCHRES 15 INFLOW PKIF 4

WDM1 9129 ORC ENGL SAME RCHRES 15 INFLOW PKIF 5

*** Observed flow/loads at Gemini Springs (ac.ft/hr;lb/hr)

WDM1 9202 IVOL ENGL SAME RCHRES 15 INFLOW IVOL

WDM1 9215 NOX ENGL SAME RCHRES 15 INFLOW N UIF1 1

WDM1 9217 PO4 ENGL SAME RCHRES 15 INFLOW NUIF1 4

*** Observed flow/loads at Green Springs (ac.ft/hr;lb/hr)

WDM1 9222 IVOL ENGL SAME RCHRES 15 INFLOW IVOL

WDM1 9235 NOX ENGL SAME RCHRES 15 INFLOW NUIF1 1

WDM1 9237 PO4 ENGL SAME RCHRES 15 INFLOW NUIF1 4

*** Point sources

*** Sanford North D

- 001 to Lake Monroe

*** assume TP = PO4, TAM = 0.2TN, and NOX = 0.8TN

*** other WQ loads (such as DO, BOD, TSS) a re small and not simulated

WDM1 8001 FLOW ENGL SAME RCHRES 15 INFLOW IVOL

WDM1 8002 NH4 ENGL SAME RCHRES 15 INFLOW NUIF1 2

WDM1 8003 NOX ENGL SAME RCHRES 15 INFLOW NUIF1 1

WDM1 8004 PO4 ENGL SAME RCHRES 15 INFLOW NUIF1 4

*** Sanford North R

- 001 goes to Site 10 in the Lake Jesup watershed

*** Deltona Lakes R

- 001 slow public access to PERLND 562 (2590ac)

*** conversion factor = 1/2590 = 0.0003861(in/hr)

WDM1 8011 FLOW ENGL 0.0003861SAME PERLND 562 EXTNL SURLI

*** Deltona Lakes R

- 002 absortion field system to inactive groundwater

*** Deltona Lakes R

- 003 rapid infiltration basin to inactive groundwater

*** SCES

- Northwest Regional R

- 001 spray fieldto PERLND 671 (1097ac)FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 254

Florida Department of Environmental Protection *** conversion factor = 1/4213 = 0.0009116(in/hr)

WDM1 8011 FLOW ENGL 0.0009116SAME PERLND 671 EXTNL SURLI

***Direct Septic Tanks

WDM1 7001 FLOW ENGL 2.61SAME COPY 3 INPUT MEAN 1

WDM1 7002 BOD ENGL 2.61SAME COPY 3 INPUT MEAN 2

WDM1 7003 TN ENGL 2.61SAME COPY 3 INPUT MEAN 3

WDM1 7004 TP ENGL 2.61SAME COPY 3 INPUT MEAN 4

WDM1 7005 TSS ENGL 1.31SAME COPY 3 INPUT MEAN 5

WDM1 7005 TSS ENGL 1.30SAME COPY 3 INPUT MEAN 6

END EXT SOURCES

SCHEMATIC

<- Volume

- > <

-- Area

-- > <

- Volume

- > <ML#> *** <sb>

<Name> x <

- factor

- > <Name> x *** x x

*** NON BMPS PERLND 2, IMPLND 1 (P

- 2 AND IMP

- 1)

*** DRY PONDS

- P surface/interflow ML# 22, baseflow ML# 23

*** DRY PONDS

- IMP surface runoff ML# 21

*** DRY PONDS

- RCH ML# 25

*** WET PONDS

- P flow ML# 42

*** WET PONDS

- IMP flow ML# 41

*** WET PONDS

- RCH ML# 45

*** SWALE

- P flow/water quality ML# 52

*** SWALE

- IMP flow/water quality ML# 51

*** ROUTING FLOW/QUALITY

- 3, 4

PERLND 281 246 RCHRES 10 2

PERLND 281 48 RCHRES 206 22

PERLND 281 48 RCHRES 10 23

PERLND 281 7 RCHRES 207 42

PERLND 282 5 RCHRES 10 2

PERLND 282 5 RCHRES 206 22

PERLND 282 5 RCHRES 10 23

PERLND 283 0 RCHRES 10 2

PERLND 284 3 RCHRES 10 2

PERLND 284 4 RCHRES 206 22

PERL ND 284 4 RCHRES 10 23

PERLND 285 0 RCHRES 10 2

PERLND 286 0 RCHRES 10 4

PERLND 287 239 RCHRES 10 2

PERLND 287 1 RCHRES 206 22

PERLND 287 1 RCHRES 10 23

PERLND 288 37 RCHRES 10 2

PERLND 289 119 RCHRES 10 2

PERLND 290 73 RCHRES 10 4

PERLND 291 632 RCHRES 10 4

PERLND 291 15 RCHRES 206 24

PERLND 291 15 RCHRES 10 25

PERLND 291 3 RCHRES 207 44

PERLND 292 0 RCHRES 10 4

PERLND 293 12 RCHRES 10 4

IMPLND 281 27 RCHRES 10 1

IMPLND 281 5 RCHRES 20 6 21

IMPLND 281 1 RCHRES 207 41

IMPLND 282 3 RCHRES 10 1

IMPLND 282 2 RCHRES 206 21

IMPLND 283 0 RCHRES 10 1

IMP LND 284 12 RCHRES 10 1

IMPLND 284 17 RCHRES 206 21

RCHRES 206 RCHRES 10 35FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 255

Florida Department of Environmental Protection RCHRES 207 RCHRES 10 45

PERLND 261 81 RCHRES 9 2

PERLND 261 7 RCHRES 196 22

PERLND 261 7 RCHRES 9 23

PERLND 261 41 RCHRES 197 42

PERLND 262 0 RCHRES 9 2

PERLND 263 0 RCHRES 9 2

PERLND 264 3 RCHRES 9 2

PERLND 265 0 RCHRES 9 2

PERLND 266 76 RCHRES 9 4

PERLND 267 1014 RCHRES 9 2

PERLND 268 10 RCHRES 9 2

PERLND 269 0 RCHRES 9 2

PERLND 270 153 RCHRES 9 4

PERLND 270 2 RCHRES 196 24

PERLND 270 2 RCHRES 9 25

PERLND 270 1 RCHRES 197 44

PERLND 271 190 RCHRES 9 4

P ERLND 271 2 RCHRES 196 24

PERLND 271 2 RCHRES 9 25

PERLND 271 1 RCHRES 197 44

PERLND 272 121 RCHRES 9 4

PERLND 273 2417 RCHRES 9 4

PERLND 273 3 RCHRES 197 44

IMPLND 261 9 RCHRES 9 1

IMPLND 261 1 RCHRES 196 21

IMPLND 261 5 RCHRES 197 41

IMPLND 262 0 RCHRES 9 1

IMPLND 263 0 RCHRES 9 1

IMPLND 264 11 RCHRES 9 1

IMPLND 264 1 RCHRES 197 41

RCHRES 196 RCHRES 9 35

RCHRES 197 RCHRES 9 45

RCHRES 10 RCHRES 9 3

PERLND 221 12 RCHRE S 7 2

PERLND 222 0 RCHRES 7 2

PERLND 223 0 RCHRES 7 2

PERLND 224 0 RCHRES 7 2

PERLND 225 0 RCHRES 7 2

PERLND 226 83 RCHRES 7 4

PERLND 227 21 RCHRES 7 2

PERLND 228 56 RCHRES 7 2

PERLND 229 0 RCHRES 7 2

PERLND 230 1464 RCHRES 7 4

PERLND 231 7089 RCHRES 7 4

PERLND 232 0 RCHRES 7 4

PERLND 233 4598 RCHRES 7 4

IMPLND 221 1 RCHRES 7 1

IMPLND 222 0 RCHRES 7 1

IMPLND 223 0 RCHRES 7 1

IMPLND 224 0 RCHRES 7 1

PERLND 241 1064 RCHRES 8 2

PERLND 241 3 RCHRES 186 22

PERLND 241 3 RCHRES 8 23

PERLND 241 134 RCHRES 187 42

PERLND 242 42 RCH RES 8 2

PERLND 242 12 RCHRES 187 42

PERLND 243 0 RCHRES 8 2

PERLND 244 14 RCHRES 8 2FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 256

Florida Department of Environmental Protection PERLND 244 1 RCHRES 186 22

PERLND 244 1 RCHRES 8 23

PERLND 244 8 RCHRES 187 42

PERLND 245 54 RCHRES 8 2

PERLND 245 11 RCHRES 187 42

PERLND 246 168 RCHRES 8 4

PERLND 247 393 RCHRES 8 2

PERLND 247 2 RCHRES 187 42

PERLND 248 119 RCHRES 8 2

PERLND 249 176 RCHRES 8 2

PERLND 250 622 RCHRES 8 4

PERLND 251 2122 RCHRES 8 4

PERLND 251 1 RCHRES 186 24

PERLND 251 1 RCHRES 8 25

PERLND 251 5 RCHRES 187 44

PERLND 252 0 RCHRES 8 4

PERLND 253 3195 RCHRES 8 4

PERLND 253 0 RC HRES 187 44

IMPLND 241 118 RCHRES 8 1

IMPLND 241 15 RCHRES 187 41

IMPLND 242 22 RCHRES 8 1

IMPLND 242 6 RCHRES 187 41

IMPLND 243 0 RCHRES 8 1

IMPLND 244 57 RCHRES 8 1

IMPLND 244 2 RCHRES 186 21

IMPLND 244 33 RCHRES 187 41

RCHRES 186 RCHRES 8 35

RCHRES 187 RCHRES 8 45

RCHRES 7 RCHRES 8 3

***

*** Note that RCHRES 9 discharges to SJR upstream of USGS gage Above Harney

* ** The discharge from RCHRES 9 is commented out

*** becuase the observed flow is used as an input series.

*** RCHRES 9 RCHRES 8 3

PERLND 121 137 RCHRES 2 2

PERLND 121 27 RCHRES 127 42

PERLND 122 12 RCHRES 2 2

PERLND 122 3 RCHRES 127 42

PERLND 123 0 RCHRES 2 2

PERLND 124 1 RCHRES 2 2

PERLND 124 3 RCHRES 127 42

PERLND 125 0 RCHRES 2 2

PERLND 126 74 RCHRES 2 4

PERLND 127 2983 RCHRES 2 2

PERLND 127 9 RCHRES 2 52

PERLND 127 1 RCHRES 127 42

PERLND 128 692 RCHRES 2 2

PERLND 129 5 RCHRES 2 2

PERLND 130 2837 RCHRES 2 4

PERLND 130 9 RCHRES 127 44

PERLND 131 5643 RCHRES 2 4

PERLND 131 6 RCHRES 2 54

PER LND 131 15 RCHRES 127 44

PERLND 132 29 RCHRES 2 4

PERLND 132 0 RCHRES 2 54

PERLND 133 5911 RCHRES 2 4

PERLND 133 4 RCHRES 2 54

PERLND 133 6 RCHRES 127 44

IMPLND 121 15 RCHRES 2 1

IMPLND 121 3 RCHRES 127 41

IMPLND 122 7 RCHRES 2 1FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 257

Florida Department of Environmental Protection IMPLND 122 1 RCHRES 127 41

IMPLND 123 0 RCHRES 2 1

IMPLND 124 5 RCHRES 2 1

IMPLND 124 14 RCHRES 127 41

RCHRES 127 RCHRES 2 45

PERLND 161 59 RCHRES 4 2

PERLND 161 4 RCHRES 147 42

PERLND 162 0 RCHRES 4 2

PERLND 163 0 RCHRES 4 2

PERLND 163 18 RCHRES 147 42

PERLND 164 1 RCHRES 4 2

PERLND 165 0 RCHRES 4 2

P ERLND 166 23 RCHRES 4 4

PERLND 167 3938 RCHRES 4 2

PERLND 168 751 RCHRES 4 2

PERLND 169 0 RCHRES 4 2

PERLND 170 856 RCHRES 4 4

PERLND 171 4292 RCHRES 4 4

PERLND 171 15 RCHRES 147 44

PERLND 172 0 RCHRES 4 4

PERLND 173 7758 RCHRES 4 4

PERLND 173 0 RCHRES 147 44

IMPLND 161 7 RCHRES 4 1

IMPLND 162 0 RCHRES 4 1

IMPLND 163 0 RCHRES 4 1

IMPLND 163 27 RCHRES 147 41

IMPLND 164 5 RCHRES 4 1

RCHRES 147 RCHRES 4 45

RCHRES 2 RCHRES 4 3

PERLND 201 0 RCHRES 6 2

PERLND 202 19 RCHRES 6 2

PERLND 202 11 RCHRES 167 42

PERLND 203 0 RCHRES 6 2

PERLND 204 0 RCHRES 6 2

PERLND 205 0 RCHRES 6 2

PERLND 206 76 RCHRES 6 4

PERLND 207 0 RCHRES 6 2

PERLND 208 0 RCHRES 6 2

PERLND 209 0 RCHRES 6 2

PERLND 210 121 RCHRES 6 4

PERLND 211 6705 RCHRES 6 4

PERLND 211 164 RCHRES 167 44

PERLND 212 0 RCHRES 6 4

PERLND 213 4245 RCHRES 6 4

PERLND 213 0 RCHRES 167 44

IMPLND 201 0 RCHRES 6 1

IMPLND 202 10 RCHRES 6 1

IMPLND 202 6 RCHRES 167 41

IMPLND 203 0 RCHRES 6 1

IMPLND 204 0 RCHR ES 6 1

RCHRES 167 RCHRES 6 45

PERLND 181 4 RCHRES 5 2

PERLND 182 0 RCHRES 5 2

PERLND 183 0 RCHRES 5 2

PERLND 184 0 RCHRES 5 2

PERLND 185 0 RCHRES 5 2

PERLND 186 0 RCHRES 5 4

PERLND 187 206 RCHRES 5 2

PERLND 188 0 RCHRES 5 2FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 258

Florida Department of Environmental Protection PERLND 189 0 RCHRES 5 2

PERLND 190 179 RCHRES 5 4

PERLND 191 2083 RCHRES 5 4

PERLND 192 0 RCHRES 5 4

PERLND 193 1474 RCHRES 5 4

IMPLND 181 0 RCHRES 5 1

IMPLND 182 0 RCHRES 5 1

IMPLND 183 0 RCHRES 5 1

IMPLND 184 0 RCHRES 5 1

RCHRES 6 RCHRES 5 3

RCHRES 4 RCHRES 5 3

PERLND 101 863 R CHRES 1 2

PERLND 101 9 RCHRES 116 22

PERLND 101 9 RCHRES 1 23

PERLND 101 158 RCHRES 117 42

PERLND 102 308 RCHRES 1 2

PERLND 102 54 RCHRES 116 22

PERLND 102 54 RCHRES 1 23

PERLND 102 80 RCHRES 117 42

PERLND 103 15 RCHRES 1 2

PERLND 104 30 RCHRES 1 2

PERLND 104 31 RCHRES 1 52

PERLND 104 3 RCHRES 116 22

PERLND 104 3 RCHRES 1 23

PERLND 104 24 RCHRES 117 42

PERLND 105 20 RCHRES 1 2

PERLND 106 264 RCHRES 1 4

PERLND 106 23 RCHRES 1 54

PERLND 107 1511 RCHRES 1 2

PERLND 107 5 RCHRES 117 42

PERLND 108 54 RCHRES 1 2

PERLND 109 551 RCHRES 1 2

PERLND 109 8 RCHRES 116 22

PERLND 109 8 RCHRES 1 23

PERLND 109 3 RCHRES 117 42

PERLND 110 2750 RCHRES 1 4

PERLND 110 1 RCHRES 1 54

PERLND 110 9 RCHRES 117 44

PERLND 111 8718 RCHRES 1 4

PERLND 111 3 RCHRES 1 54

PERLND 111 3 RCHRES 116 24

PERLND 111 3 RCHRES 1 25

PERLND 111 29 RCHRES 117 44

PERLND 112 257 RCHRES 1 4

PERLND 113 15878 RCHRES 1 4

PERLND 113 4 RCHRES 1 54

PERLND 113 5 RCHRES 117 44

IMPLND 101 96 RCHRES 1 1

IMPLND 101 1 RCHRES 116 21

IMPLND 101 18 RCHRES 117 41

IMPLND 102 166 RCHRES 1 1

IMPLND 102 29 RCHRES 116 21

IMPLND 102 43 RCHRES 117 41

IMPLND 103 23 RCHRES 1 1

IMPLND 103 1 RCHRES 117 41

IMPLND 104 121 RCHRES 1 1

IMPLND 104 123 RCHRES 1 51

IMPLND 104 12 RCHRES 116 21

IMPLND 104 96 RCHRES 117 41

RCHRES 116 RCHRES 1 35

RCHRES 117 RCHRES 1 45FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 259

Florida Department of Environmental Protection PERLND 141 290 RCHRES 3 2

PERL ND 141 20 RCHRES 136 22

PERLND 141 20 RCHRES 3 23

PERLND 141 14 RCHRES 137 42

PERLND 142 484 RCHRES 3 2

PERLND 142 26 RCHRES 136 22

PERLND 142 26 RCHRES 3 23

PERLND 142 156 RCHRES 137 42

PERLND 143 0 RCHRES 3 2

PERLND 144 5 RCHRES 3 2

PERLND 144 17 RCHRES 136 22

PERLND 144 17 RCHRES 3 23

PERLND 144 8 RCHRES 137 42

PERLND 145 58 RCHRES 3 2

PERLND 145 1 RCHRES 136 22

PERLND 145 1 RCHRES 3 23

PERLND 145 3 RCHRES 137 42

PERLND 146 108 RCHRES 3 4

PERLND 147 2327 RCHRES 3 2

PERLND 148 645 RCHRES 3 2

PERLND 149 10 RCHRES 3 2

PERLND 150 1776 RCHRES 3 4

PER LND 150 12 RCHRES 137 44

PERLND 151 4523 RCHRES 3 4

PERLND 151 18 RCHRES 136 24

PERLND 151 18 RCHRES 3 25

PERLND 151 15 RCHRES 137 44

PERLND 152 225 RCHRES 3 4

PERLND 153 5010 RCHRES 3 4

PERLND 153 5 RCHRES 137 44

IMPLND 141 32 RCHRES 3 1

IMPLND 141 2 RCHRES 136 21

IMPLND 141 2 RCHRES 137 41

IMPLND 142 260 RCHRES 3 1

IMPLND 142 14 RCHRES 136 21

IMPLND 142 84 RCHRES 137 41

IMPLND 143 0 RCHRES 3 1

IMPLND 144 20 RCHRES 3 1

IMPLND 144 67 RCHRES 1 36 21

IMPLND 144 32 RCHRES 137 41

RCHRES 136 RCHRES 3 35

RCHRES 137 RCHRES 3 45

RCHRES 1 RCHRES 3 3

P ERLND 301 1099 RCHRES 11 2

PERLND 301 74 RCHRES 216 22

PERLND 301 74 RCHRES 11 23

PERLND 301 184 RCHRES 217 42

PERLND 302 17 RCHRES 11 2

PERLND 302 58 RCHRES 217 42

PERLND 303 13 RCHRES 11 2

PERLND 303 1 RCHRES 216 22

PERLND 303 1 RCHRES 11 23

PERLND 303 1 RCHRES 217 42

PERLND 304 2 RCHRES 11 2

PERLND 304 67 RCHRES 217 42

PERLND 305 7 1 RCHRES 11 2

PERLND 305 4 RCHRES 217 42

PERLND 306 174 RCHRES 11 4

PERLND 307 1509 RCHRES 11 2

PERLND 307 4 RCHRES 217 42FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 260

Florida Department of Environmental Protection PERLND 308 160 RCHRES 11 2

PERLND 309 95 RCHRES 11 2

PERLND 310 2721 RCHRES 11 4

PERLND 310 4 RCHRES 216 24

PERLND 310 4 RCHRES 11 25

PERLND 310 28 RCHRES 217 44

PERLND 311 5491 RCHRES 11 4

PERLND 311 18 RCHRES 216 24

PERLND 311 18 RCHRES 11 25

PERLND 311 47 RCHRES 217 44

PERLND 312 0 RCHRES 11 4

PERLND 313 4864 RCHRES 11 4

PERLND 313 0 RCHRES 217 44

IMPLND 301 122 RCHRES 11 1

IMPLND 301 8 RCHRES 216 21

IMPLND 301 20 RCHRES 217 41

IMPLND 302 9 RCHRES 11 1

IMPLND 302 31 RCHRES 217 41

IMPLND 303 20 RCHRES 11 1

IMPLND 303 1 RCHRES 216 21

IMPLND 303 2 RCHRE S 217 41

IMPLND 304 8 RCHRES 11 1

IMPLND 304 268 RCHRES 217 41

RCHRES 216 RCHRES 11 35

RCHRES 217 RCHRES 11 45

COPY 3 1 RCHRES 11 99

RCHRES 8 RCHRES 11 3

RCHRES 5 RCHRES 11 3

RCHRES 3 RCHRES 11 3

***

PERLND 501 52 RCHRES 12 2

PERLND 501 8 RCHRES 226 22

PERLND 501 8 RCHRES 12 23

PERLND 501 88 RCHRES 227 42

PERLND 502 0 RCHRES 12 2

PERLND 503 0 RCHRES 12 2

PERLND 504 0 RCHRES 12 2

PERLND 505 0 RCHRES 12 2

PERLND 506 0 RCHRES 12 4

PERLND 507 413 RCHRES 12 2

PERLND 508 0 RCHRES 12 2

PERLND 509 0 RCHRES 12 2

PERLND 510 432 RCHRES 12 4

PERLND 511 108 RCHRES 12 4

PERLND 511 2 RCHRES 226 24

PERLND 511 2 RCHRES 12 25

PERLND 511 1 RCHRES 227 44

PERLND 512 0 RCHRES 12 4

PERLND 513 1248 RCHRES 12 4

IMPLND 501 6 RCHRES 12 1

IMPLND 501 1 RCHRES 226 21

IMPLND 501 10 RCHRES 227 41

IMPLND 502 0 RCHRES 12 1

IMPLND 503 0 RCHRES 12 1

IMPLND 504 0 RCHRES 12 1

RCHRES 226 RCHRES 12 35

RCHRES 227 RCHRES 12 45

PERLND 521 125 RCHRES 13 2

PERLND 521 35 RCHRES 236 22

PERLND 521 35 RCHRES 13 23

PERLND 521 11 RCHRES 237 42FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 261

Florida Department of Environmental Protection PERLND 522 1044 RCHRES 13 2

PERLND 522 31 RCHRES 236 22

PERLND 522 31 RCHRES 13 23

PERLND 522 12 RCHRES 237 42

PERLND 523 2 RCHRES 13 2

PERLND 524 12 RCHRES 13 2

PERLND 524 7 RCHRES 236 22

PERLND 524 7 RCHRES 13 23

PERLND 525 0 RCHRES 13 2

PERLND 526 19 RCHRES 13 4

PERLND 527 0 RCHRES 13 2

PERL ND 528 0 RCHRES 13 2

PERLND 529 9 RCHRES 13 2

PERLND 530 103 RCHRES 13 4

PERLND 530 14 RCHRES 236 24

PERLND 530 14 RCHRES 13 25

PERLND 530 6 RCHRES 237 44

PERLND 531 419 RCHRES 13 4

PERLND 531 18 RCHRES 236 24

PERLND 531 18 RCHRES 13 25

PERLND 531 22 RCHRES 237 44

PERLND 532 23 RCHRES 13 4

PERLND 533 161 RCHRES 13 4

IMPLND 521 14 RCHRES 13 1

IMPLND 521 4 RCHRES 236 21

IMPLND 521 1 RCHRES 237 41

IMPLND 522 562 RCHRES 13 1

IMPLND 522 17 RCHRES 23 6 21

IMPLND 522 7 RCHRES 237 41

IMPLND 523 3 RCHRES 13 1

IMPLND 524 47 RCHRES 13 1

IMPLND 524 27 RCHRES 236 21

RCH RES 236 RCHRES 13 35

RCHRES 237 RCHRES 13 45

PERLND 541 1197 RCHRES 14 2

PERLND 541 144 RCHRES 246 22

PERLND 541 144 RCHRES 14 23

PERLND 541 48 RCHRES 247 42

PERLND 542 5551 RCHRES 14 2

PERLND 542 630 RCHRES 246 22

PERLND 542 630 RCHRES 14 23

PERLND 542 383 RCHRES 247 42

PERLND 543 1 RCHRES 14 2

PERLND 543 94 RCHRES 246 22

PERLND 543 94 RCHRES 14 23

PERLND 543 3 RCHRES 247 42

PERLND 544 47 RCHRES 14 2

PERLND 544 9 RCHRES 14 52

PERLND 544 65 RCHRES 246 22

PERLND 544 65 RCHRES 14 23

PERLND 544 7 RCHRES 247 42

PERLND 545 99 RCHRES 14 2

PERLND 545 3 RCHRES 246 22

P ERLND 545 3 RCHRES 14 23

PERLND 545 6 RCHRES 247 42

PERLND 546 221 RCHRES 14 4

PERLND 546 9 RCHRES 246 24

PERLND 546 9 RCHRES 14 25

PERLND 546 1 RCHRES 247 44

PERLND 547 657 RCHRES 14 2

PERLND 547 34 RCHRES 246 22FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 262

Florida Department of Environmental Protection PERLND 547 34 RCHRES 14 23

PERLND 547 23 RCHRES 247 42

PERLND 548 209 RCHRES 14 2

PERLND 548 7 RCHRES 246 22

PERLND 548 7 RCHRES 14 23

PERLND 548 1 RCHRES 247 42

PERLND 549 297 RCHRES 14 2

PERLND 549 18 RCHRES 246 22

PERLND 549 18 RCHRES 14 23

PERLND 549 3 RCHRES 247 42

PERLND 550 867 RCHRES 14 4

PERLND 550 1 RCHRES 14 54

PERLND 550 15 RCHRES 246 24

PERLND 550 15 RCHRES 14 25

PERLND 550 13 RCHRES 247 44

PERLND 551 4938 RCHRES 14 4

PERLND 551 15 RCHRES 14 54

PERLND 551 304 RCHRES 246 24

PERLND 551 304 RCHRES 14 25

PERLND 551 167 RCHRES 247 44

PERLND 552 0 RCHRES 14 4

PERLND 553 1098 RCHRES 14 4

PERLND 553 0 RCHRES 246 24

PERLND 553 0 RCHRES 14 25

PERLND 553 0 RCHRES 247 44

IMPLND 541 1 33 RCHRES 14 1

IMPLND 541 16 RCHRES 246 21

IMPLND 541 5 RCHRES 247 41

IMPLND 542 2989 RCHRES 14 1

IMPLND 542 339 RCHRE S 246 21

IMPLND 542 206 RCHRES 247 41

IMPLND 543 1 RCHRES 14 1

IMPLND 543 141 RCHRES 246 21

IMPLND 543 5 RCHRES 247 41

IMPLND 544 188 RCHRES 14 1

IMPLND 544 34 RCHRES 14 51

IMPLND 544 259 RCHRES 246 21

IMPLND 544 27 RCHRES 247 41

RCHRES 246 RCHRES 14 35

RCHRES 247 RCHRES 14 45

COPY 3 1 RCHRES 14 99

PERLND 581 53 RCHRES 16 2

PERLND 581 2 RCHRES 266 22

PERLND 581 2 RCHRES 16 23

PERLND 582 653 RCHRES 16 2

PERLND 582 1 RCHRES 16 52

PERLND 582 177 RCHRES 266 22

PERLND 582 177 RCHRES 16 23

PERLND 582 18 RCHRES 267 42

PERLND 583 18 RCHRES 16 2

PERLND 583 6 RCH RES 266 22

PERLND 583 6 RCHRES 16 23

PERLND 584 23 RCHRES 16 2

PERLND 584 4 RCHRES 16 52

PERLND 584 19 RCHRES 266 22

PERLND 584 19 RCHRES 16 23

PERLND 584 2 RCHRES 267 42

PERLND 585 0 RCHRES 16 2

PERLND 586 31 RCHRES 16 4

PERLND 586 1 RCHRES 16 54

PERLND 586 21 RCHRES 266 24FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 263

Florida Department of Environmental Protection PERLND 586 21 RCHRES 16 25

PERLND 587 0 RCHRES 16 2

PERLND 588 93 RCHRES 16 2

PERLND 588 7 RCHRES 266 22

PERLND 588 7 RCHRES 16 23

PERLND 589 0 RCHRES 16 2

PERLND 590 37 RCHRES 16 4

PERLND 590 13 RCHRES 266 24

PERLND 590 13 RCHRES 16 25

PERLND 591 289 RCHRES 16 4

PERLND 591 1 RC HRES 16 54

PERLND 591 69 RCHRES 266 24

PERLND 591 69 RCHRES 16 25

PERLND 591 3 RCHRES 267 44

PERLND 592 0 RCHRES 16 4

PERLND 593 122 RCHRES 16 4

PERLND 593 0 RCHRES 266 24

PERLND 593 0 RCHRES 16 25

IMPLND 581 6 RCHRES 16 1

IMPLND 5 82 352 RCHRES 16 1

IMPLND 582 1 RCHRES 16 51

IMPLND 582 95 RCHRES 266 21

IMPLND 582 10 RCHRES 267 41

IMPLND 583 27 RCHRES 16 1

IMPLND 583 10 RCHRES 266 21

IMPLND 584 91 RCHRES 16 1

IMPLND 584 17 RCHRES 16 51

IMPLND 584 74 RCHRES 266 21

IMPLND 584 8 RCHRES 267 41

RCHRES 266 RCHRES 16 35

RCHRES 267 RCHRES 16 45

PERLND 561 919 RCHRES 15 2

PERLND 561 254 RCHRES 256 22

PERLND 561 254 RCHRES 15 23

PERLND 561 311 RCHRES 257 42

PERLND 562 2129 RCHRES 15 2

PERLND 562 1 RCHRES 15 52

PERLND 562 227 RCHRES 256 22

PERLND 562 227 RCHRES 15 23

PERLND 562 232 RCHRES 257 42

PERLND 563 135 RCHRES 15 2

PERLND 563 6 RCHRES 256 22

PERLND 563 6 RCHRES 15 23

PERLND 563 86 RCHRES 257 42

PERLND 564 282 RCHRES 15 2

PERLND 564 10 RCHRES 15 52

PERLND 564 17 RCHRES 256 22

PERLND 564 17 RCHRES 15 23

PERLND 564 103 RCHRES 257 42

PERLND 565 49 RCHRES 15 2

PERLND 566 555 RCHRES 15 4

PERLND 566 9 RCHRES 256 24

PERLND 566 9 RCHRES 15 25

PERLND 566 24 RCHRES 257 44

PERLND 567 1528 RCHRES 15 2

PERLND 567 6 RCHRES 15 52

PERLND 567 112 RCHRES 257 42

PERLND 568 571 RCHRES 15 2

PERLND 568 198 RCHRES 257 42

PERLND 569 55 RCHRES 15 2

PERLND 569 5 RCHRES 257 42FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 264

Florida Department of Environmental Protection PERLN D 570 978 RCHRES 15 4

PERLND 570 9 RCHRES 15 54

PERLND 570 9 RCHRES 256 24

PERLND 570 9 RCHRES 15 25

PERLND 570 66 RCHRES 257 44

PERLND 571 2739 RCHRES 15 4

PERLND 571 4 RCHRES 15 54

PERLND 571 139 RCHRES 256 24

PERLND 571 139 RCHRES 15 25

PERLND 571 282 RCHRES 257 44

PERLND 572 0 RCHRES 15 4

PERLND 572 0 RCHRES 15 54

PERLND 573 7701 RCHRES 15 4

PERLND 573 0 RCHRES 15 54

PERLND 573 0 RCHRES 256 24

PERLND 573 0 RCHRES 15 25

PERLND 573 0 RCHRES 257 44

IMPLND 561 102 RCHRES 15 1

IMPLND 561 28 RCHRES 256 21

IMPLND 561 35 RCHRES 257 41

IMPLND 562 1147 RCHRES 15 1

IMPL ND 562 1 RCHRES 15 51

IMPLND 562 122 RCHRES 256 21

IMPLND 562 125 RCHRES 257 41

IMPLND 563 202 RCHRES 15 1

IMPLND 563 9 RCHRES 256 21

IMPLND 563 128 RCHRES 257 41

IMPLND 564 1129 RCHRES 15 1

IMPLND 564 38 RCHRES 15 51

IMPLND 564 69 RCHRES 256 21

IMPLND 564 411 RCHRES 257 41

RCHRES 256 RCHRES 15 35

RCHRES 257 RCHRES 15 45

COPY 3 1 RCHRES 15 99

RCHRES 11 RCHRES 15 3

RCHRES 12 RCHRES 15 3

RCHRES 13 RCHRES 15 6

RCHRES 16 RCHRES 1 5 6

PERLND 601 31 RCHRES 17 2

PERLND 601 139 RCHRES 276 22

PERLND 601 139 RCHRES 17 23

PERLND 601 71 RCHRES 277 42

PE RLND 602 190 RCHRES 17 2

PERLND 602 180 RCHRES 276 22

PERLND 602 180 RCHRES 17 23

PERLND 602 108 RCHRES 277 42

PERLND 603 1 RCHRES 17 2

PERLND 603 95 RCHRES 276 22

PERLND 603 95 RCHRES 17 23

PERLND 603 65 RCHRES 277 42

PERLND 604 3 RCHRES 17 2

PERLND 604 13 RCHRES 17 52

PERLND 604 19 RCHRES 276 22

PERLND 604 19 RCHRES 17 23

PERLND 604 12 RCHRES 277 42

PERLND 605 0 RCHRES 17 2

PERLND 606 119 RCHRES 17 4

PERLND 606 5 RCHRES 17 54

PERLND 606 43 RCHRES 276 24

PERLND 606 43 RCHRES 17 25

PERLND 606 11 RCHRES 277 44FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 265

Florida Department of Environmental Protection PERLND 607 7 RCHRES 17 2

PERLND 607 15 RCHRES 277 42

P ERLND 608 298 RCHRES 17 2

PERLND 608 2 RCHRES 277 42

PERLND 609 55 RCHRES 17 2

PERLND 609 29 RCHRES 276 22

PERLND 609 29 RCHRES 17 23

PERLND 609 12 RCHRES 277 42

PERLND 610 249 RCHRES 17 4

PERLND 610 53 RCHRES 276 24

PERLND 610 53 RCHRES 17 25

PERLND 610 9 RCHRES 277 44

PERLND 611 300 RCHRES 17 4

PERLND 611 29 RCHRES 276 24

PERLND 611 2 9 RCHRES 17 25

PERLND 611 9 RCHRES 277 44

PERLND 612 0 RCHRES 17 4

PERLND 613 304 RCHRES 17 4

PERLND 613 0 RCHRES 277 44

IMPLND 601 3 RCHRES 17 1

IMPLND 601 15 RCHRES 276 21

IMPLND 601 8 RCHRES 277 41

IMPLND 602 103 RCHRES 17 1

IMPLND 602 97 RCHRES 276 21

IMPLND 602 58 RCHRES 277 41

IMPLND 603 1 RCHRES 17 1

IMPLND 603 143 RCHRES 276 21

IMPLND 603 97 RCHRES 277 41

IMPLND 604 10 RCHRES 17 1

IMPLND 604 52 RCHRES 17 51

IMPLND 604 77 RCHRES 276 21

IMPLND 604 50 RCHRES 277 41

RCHRES 276 RCHRES 17 35

RCHRES 277 RCHRES 17 45

COPY 3 1 RCHRES 17 99

PERLND 621 85 RCHRES 18 2

PERLND 621 20 RCHRES 286 22

PERLND 621 20 RCHRES 18 23

PERLND 621 15 RCHRES 287 42

PERLND 622 170 RCHR ES 18 2

PERLND 622 1 RCHRES 18 52

PERLND 622 66 RCHRES 286 22

PERLND 622 66 RCHRES 18 23

PERLND 622 194 RCHRES 287 4 2

PERLND 623 43 RCHRES 18 2

PERLND 623 32 RCHRES 286 22

PERLND 623 32 RCHRES 18 23

PERLND 623 62 RCHRES 287 42

PERLND 624 73 RCHRES 18 2

PERLND 624 21 RCHRES 18 52

PERLND 624 18 RCHRES 286 22

PERLND 624 18 RCHRES 18 23

PERLND 624 61 RCHRES 287 42

PERLND 625 31 RCHRES 18 2

PERLND 625 1 RCHRES 286 22

PERLND 625 1 RCHRES 18 23

PERLND 625 23 RCHRES 287 42

PERLND 626 88 RCHRES 18 4

PERLND 626 1 RCHRES 18 54

PERLND 626 35 RCHRES 286 24

PERLND 626 35 RCH RES 18 25FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 266

Florida Department of Environmental Protection PERLND 626 30 RCHRES 287 44

PERLND 627 288 RCHRES 18 2

PERLND 627 10 RCHRES 18 52

PERLND 627 52 RCHRES 286 22

PERLND 627 52 RCHRES 18 23

PERLND 627 72 RCHRES 287 42

PERLND 628 73 RCHRES 18 2

PERLND 628 15 RCHRES 286 22

PERLND 62 8 15 RCHRES 18 23

PERLND 628 16 RCHRES 287 42

PERLND 629 54 RCHRES 18 2

PERLND 629 12 RCHRES 286 22

PERLND 629 12 RCHRES 18 23

PERLND 629 7 RCHRES 287 42

PERLND 630 641 RCHRES 18 4

PERLND 630 8 RCHRES 18 54

PERLND 630 58 RCHRES 286 24

PERLND 630 58 RCHRES 18 25

PERLND 630 66 RCHRES 287 44

PERLND 631 945 RCHRES 18 4

PERLND 631 33 RC HRES 18 54

PERLND 631 128 RCHRES 286 24

PERLND 631 128 RCHRES 18 25

PERLND 631 211 RCHRES 287 44

PERLND 632 119 RCHRES 18 4

PERLND 632 0 RCHRES 287 44

PERLND 633 645 RCHRES 18 4

PERLND 633 23 RCHRES 18 54

PERLND 633 6 RCHRES 286 24

PERLND 6 33 6 RCHRES 18 25

PERLND 633 75 RCHRES 287 44

IMPLND 621 9 RCHRES 18 1

IMPLND 621 2 RCHRES 286 21

IMPLND 621 2 RCHRES 287 41

IMPLND 622 92 RCHRES 18 1

IMPLND 622 1 RCHRES 18 51

IMPLND 622 36 RCHRES 286 21

IMPLND 622 104 RCHRES 287 41

IMPLND 623 64 RCHRES 18 1

IMPLND 623 48 RCHRES 286 21

IMPLND 623 93 RCHRES 287 41

IMPLND 624 293 R CHRES 18 1

IMPLND 624 85 RCHRES 18 51

IMPLND 624 71 RCHRES 286 21

IMPLND 624 246 RCHRES 287 41

RCHRES 286 RCHRES 18 35

RCHRES 287 RCHRES 18 45

RCHRES 17 RCHRES 18 3

PERLND 641 0 RCHRES 20 2

PERLND 642 23 RCHRES 20 2

PERLND 643 0 RCHRES 20 2

PERLND 644 4 RCHRES 20 2

PERLND 645 142 RCHRES 20 2

PERLND 646 3 RCHRES 20 4

PERLND 647 43 RCHRES 20 2

PERLND 648 0 RCHRES 20 2

PERLND 649 0 RCHRES 20 2

PERLND 650 58 RCHRES 20 4

PERLND 651 159 RCHRES 20 4

PERLND 652 1105 RCHRES 20 4

PERLND 653 99 RCHRES 20 4FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 267

Florida Department of Environmental Protection IMPLND 641 0 RCHRES 20 1

IMPLND 642 12 RCHRES 20 1

IMPLND 643 0 RCHRES 20 1

IMPLND 644 14 RCHRES 20 1

PERLND 661 9 RCHRES 20 2

PERLND 661 13 RCHRES 306 22

PERLND 661 13 RCHRES 20 23

PERLND 661 5 RCHRES 307 42

PERLND 662 47 RCHRES 20 2

PERLND 662 26 RCHRES 306 22

PERL ND 662 26 RCHRES 20 23

PERLND 662 20 RCHRES 307 42

PERLND 663 26 RCHRES 20 2

PERLND 663 1 RCHRES 20 52

PERLND 663 1 RCHRES 307 42

PERLND 664 18 RCHRES 20 2

PERLND 664 2 RCHRES 20 52

PERLND 664 19 RCHRES 307 42

PERLND 665 0 RCHRES 20 2

PERLND 666 51 RCHRES 20 4

PERLND 666 4 RCHRES 307 44

PERLND 667 373 RCHRES 20 2

PERLND 667 58 RCHRES 307 42

PERLND 668 51 RCHRES 20 2

PERLND 668 2 RCHRES 306 22

PERLND 668 2 RCHRES 20 23

PERLND 668 125 RCHRES 30 7 42

PERLND 669 10 RCHRES 20 2

PERLND 670 469 RCHRES 20 4

PERLND 670 14 RCHRES 306 24

PERLND 670 14 RCHRES 20 25

PER LND 670 98 RCHRES 307 44

PERLND 671 913 RCHRES 20 4

PERLND 671 3 RCHRES 20 54

PERLND 671 12 RCHRES 306 24

PERLND 671 12 RCHRES 20 25

PERLND 671 169 RCHRES 307 44

PERLND 672 0 RCHRES 20 4

PERLND 673 2149 RCHRES 20 4

PERLND 673 0 RCHRES 307 44

IMPLND 661 1 RCHRES 20 1

IMPLND 661 1 RCHRES 306 21

IMPLND 661 1 RCHRES 307 41

IMPLND 662 25 RCHRES 20 1

IMPLND 662 14 RCHRES 306 21

IMPLND 662 11 RCHRES 307 41

IMPLND 663 39 RCHRES 20 1

IMPLND 663 2 RCHRES 20 51

IMPLND 663 1 RCHRES 306 21

IMPLND 663 2 RCHRES 307 41

IMPLND 664 74 RCHRES 20 1

IMPLND 664 6 RCHRES 20 51

IM PLND 664 1 RCHRES 306 21

IMPLND 664 76 RCHRES 307 41

RCHRES 306 RCHRES 20 35

RCHRES 307 RCHRES 20 45

RCHRES 15 RCHRES 20 3

RCHRES 18 RCHRES 20 3

END SCHEMATICFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 268

Florida Department of Environmental Protection EXT TARGETS

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<Name> x <Name> x x<

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RCHRES 7 HYDR ROVOL 1 1 WDM1 101 FLOW 1 ENGL AGGR REPL

RCHRES 8 HYDR IVOL 1 1 WDM1 102 FLOW 1 ENGL AGGR REPL

RCHRES 8 HYDR ROVOL 1 1 WDM1 103 FLO W 1 ENGL AGGR REPL

RCHRES 11 HYDR IVOL 1 1 WDM1 104 FLOW 1 ENGL AGGR REPL

RCHRES 15 HYDR IVOL 1 1 WDM1 105 FLOW 1 ENGL AGGR REPL

RCHRES 12 HYDR ROVOL 1 1 WDM1 106 FLOW 1 ENGL AGGR REPL

R CHRES 13 HYDR OVOL 1 1 WDM1 107 FLOW 1 ENGL AGGR REPL

RCHRES 16 HYDR OVOL 1 1 WDM1 108 FLOW 1 ENGL AGGR REPL

RCHRES 18 HYDR ROVOL 1 1 WDM1 109 FLOW 1 ENGL AGGR REPL

RCHRES 20 HYDR IVOL 1 1 WDM1 110 FLOW 1 ENGL AGGR REPL

RCHRES 15 HYDR ROVOL 1 1 WDM1 111 FLOW 1 ENGL AGGR REPL

RCHRES 3 HYDR ROVOL 1 1 WDM1 112 FLOW 1 ENGL AGGR REPL

RCHR ES 5 HYDR ROVOL 1 1 WDM1 113 FLOW 1 ENGL AGGR REPL

RCHRES 11 HYDR ROVOL 1 1 WDM1 114 FLOW 1 ENGL AGGR REPL

RCHRES 15 HYDR RO 1 1 WDM1 115 FLOW 1 ENGL AGGR REPL

RCHRES 16 HYDR RO 1 1 WDM1 116 FLOW 1 ENGL AGGR REPL

RCHRES 17 HYDR RO 1 1 WDM1 117 FLOW 1 ENGL AGGR REPL

RCHRES 18 HYDR RO 1 1 WDM1 118 FLOW 1 ENGL AGGR REPL

RCHRES 19 HYDR RO 1 1 WDM1 119 FLOW 1 ENGL AGGR REPL

RCHRES 20 HYDR RO 1 1 WDM1 120 FLOW 1 ENGL AGGR REPL

RCHRES 18 HYDR VOL 1 1 WDM1 121 FLOW 1 ENGL AGGR REPL

RCHRES 18 HYDR ROVOL 1 1 WDM1 122 FLOW 1 ENGL A GGR REPL

RCHRES 18 PLANK PKST4 1 1 WDM1 123 FLOW 1 ENGL AGGR REPL

RCHRES 18 PLANK TPKCF1 4 1 WDM1 124 FLOW 1 ENGL AGGR REPL

RCHRES 18 PLANK PKST4 2 1 WDM1 125 FLOW 1 ENGL AGGR REPL

RCHRES 18 PL ANK TPKCF1 5 1 WDM1 126 FLOW 1 ENGL AGGR REPL

END EXT TARGETS

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PERLND PWATER PERO 0.0833333 RCHRES INFLOW IVOL

PERLND PWTGAS PODOXM RCHRES INFLOW OXIF 1

PERLND PWTGAS POHT RCHRES INFLOW IHEAT 1

PERLND SED MNT SOSED 1 0.2 RCHRES INFLOW ISED 1

PERLND SEDMNT SOSED 1 0.4 RCHRES INFLOW ISED 2

PERLND SEDMNT SOSED 1 0.4 RCHRES INFLOW ISED 3

PERLND PQUAL POQUAL 1 RCHRES INFLOW NUIF1 2

PERLND PQUAL POQUAL 2 RCHRES INFLOW NUIF1 1

PERLND PQUAL POQUAL 3 RCHRES INFLOW NUIF1 4

PERLND PQUAL POQUAL 4 1.0 RCHRES INFLOW OXIF 2

PERLND PQUAL POQUAL 4 0.01839 RCHRES INFLOW PKIF 3

PERLND PQUAL POQUAL 4 0.00025 RCHRES INFLOW PKIF 4

PERLND PQUAL POQUAL 4 0.68056 RCHRES INFLOW PKIF 5

END MASS

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PERLND PWATER PERO 0.0833333 RCHRES INFLOW IVOL

PERLND PWTGAS PO DOXM RCHRES INFLOW OXIF 1

PERLND PWTGAS POHT RCHRES INFLOW IHEAT 1

PERLND SEDMNT SOSED 1 0.2 RCHRES INFLOW ISED 1

PERLND SEDMNT SOSED 1 0.4 RCHRES INFLOW ISED 2

PERLND SEDMNT SOSED 1 0.4 RCHRES INFLOW ISED 3FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 269

Florida Department of Environmental Protection PERLND PQUAL POQUAL 1 RCHRES INFLOW NUIF1 2

PERLND PQUAL POQUAL 2 RCHRES INFLOW NUIF1 1

PERLND PQUAL POQUAL 3 RCHRES INFLOW NUIF1 4

PERLND PQUAL POQUAL 4 1.0 RCHRES INFLOW OXIF 2

PERLND PQUAL POQUAL 4 0.38626 RCHRES INFLOW PKIF 3

PERLND PQUAL POQUAL 4 0.00529 RCHR ES INFLOW PKIF 4

PERLND PQUAL POQUAL 4 14.29167 RCHRES INFLOW PKIF 5

END MASS

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IMPLND IWATER SURO 0.0833333 RCHRES INFLOW IVOL

IMPLND IWTGAS SODOXM RCHRES INFLOW OXIF 1

IMPLND IWTGAS SOHT RCHRES INFLOW IHEAT 1

IMPLND SOLIDS SOSLD 0.2 RCHRES INFLOW ISED 1

IMPLND SOLIDS SOSLD 0.4 RCHRES INFLOW ISED 2

IMPLND SOLIDS SOSLD 0.4 RCHRES INFLOW ISED 3

IMPLND IQUAL SOQUAL 1 RCHRES INFLOW NUIF1 2

IMPLND IQUAL SOQUAL 2 RCHRES INFLOW NUIF1 1

IMPLND IQUAL SOQUAL 3 RCHRES INFLOW NUIF1 4

IMPLND IQUAL SOQUAL 4 1.0 RCHRES INFLOW OXIF 2

IMPLND IQUAL SOQUAL 4 0.00424 RCHRES INFLOW PKIF 3

IMPLND IQUAL SOQUAL 4 0.00006 RCHRES INFLOW PKIF 4

IMPLND IQUAL SOQUAL 4 0.15705 RCHRES INFLOW PKIF 5

END MASS

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RCHRES ROFLOW RCHRES INF LOW

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RCHRES OFLOW 1 RCHRES INFLOW

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PERLND PWAT ER SURO 0.0833333 RCHRES INFLOW IVOL

PERLND PWATER IFWO 0.0833333 RCHRES INFLOW IVOL

PERLND PWTGAS SODOXM RCHRES INFLOW ICON 1

PERLND PWTGAS IODOXM RCHRES INFLOW ICON 1

PERLND PWTGAS SOHT RCHRES INFLOW ICON 2

PERLND PWTGAS IOHT RCHRES INFLOW ICON 2

PERLND SEDMNT SOSED RCHRES INFLOW ICON 3

PERLND PQUAL SOQUAL 1 RCHRES INFLOW ICON 4

PERLND PQUAL IOQUAL 1 RCHRES INFLOW ICON 4

PERLND PQUAL SOQUAL 2 RCHRES INFLOW ICON 5

PERLND PQUAL IOQUAL 2 RCHRES INFLOW ICON 5

PERLND PQUAL SOQUAL 3 RCHRES INFLOW ICON 6

PERLND PQUAL IOQUAL 3 RCHRES INFLOW ICON 6

PERLND PQUAL SOQUAL 4 1.00 RCHRES INFLOW ICON 7

PERLND PQUAL IOQUAL 4 1.00 RCHRES INFLOW ICON 7

PERLND PQUAL SOQUAL 4 0.01839 RCHRES INFLOW ICON 8

PERLND PQUAL IOQUAL 4 0.01839 RCHRES INFLOW ICON 8

PERLND PQUAL SOQUAL 4 0.00025 RCHRES INFLOW ICON 9

PERLND PQUAL IOQUAL 4 0.00025 RCHRES INFLOW ICON 9

PERLND PQUAL SOQUAL 4 0.68056 RCHRES INFLOW ICON 10FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 270

Florida Department of Environmental Protection PERLND PQUAL IOQUAL 4 0.68056 RCHRES INFLOW ICON 10

END MASS

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IMPLND IWATER SURO 0.0833333 RCHRES INFLOW IVOL

IMPLND IWTGAS SODOXM RCHRES INFLOW ICON 1

IMPLND IWTGAS SOHT RCHRES INFLOW ICON 2

IMPLND SOLIDS SOSLD RCHRES INFLOW ICON 3

IMPLND IQUAL SOQUAL 1 RCHRES INFLOW ICON 4

IMPLND IQUAL SOQUAL 2 RCHRES INFLOW ICON 5

IMPLND IQUAL SOQUAL 3 RCHRES INFLOW ICON 6

IMPLND IQUAL SOQUAL 4 1.0 RCHRES INFLOW ICON 7

IMPLND IQUAL SOQUAL 4 0.00424 RCHRES INFLOW ICON 8

IMPLND IQUAL SOQUAL 4 0.00006 RCHRES INFLOW ICON 9

IMPLND IQUAL SOQUAL 4 0.15705 RCHRES INFLOW ICON 10

END MASS

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PERLND PWATER AGWO 0.0833333 RCHRES INF LOW IVOL

PERLND PWTGAS AODOXM RCHRES INFLOW OXIF 1

PERLND PWTGAS AOHT RCHRES INFLOW IHEAT 1

PERLND PQUAL AOQUAL 1 RCHRES INFLOW NUIF1 2

PERLND PQUAL AOQUAL 2 RCHRES INFLOW NUIF1 1

PERLND PQUAL AOQUAL 3 RCHRES INFLOW NUIF1 4

PERLND PQUAL AOQUAL 4 1.0 RCHRES INFLOW OXIF 2

PERLND PQUAL AOQUAL 4 0.01839 RCHRES INFLOW PKIF 3

PERLND PQUAL AOQUAL 4 0.00025 RCHRES INFLOW PKIF 4

PERLND PQUAL AOQUAL 4 0.68056 RCHRES INFLOW PKIF 5

END MASS

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PERLND PWATER SURO 0.0833333 RCHRES INFLOW IVOL

PERLND PWATER IFWO 0.0833333 RCHRES INFLOW IVOL

PERLND PWTGAS SODOXM RCHRES INFLOW ICON 1

PERLND PWTGAS IODOXM RCHRES INFLOW ICON 1

PERLND PWTGAS SOHT RCHRES INFLOW ICON 2

PERLND PWTGAS IOHT RCHRES INFLOW ICON 2

PERLND SEDMNT SOSED RCHRES INFLOW ICON 3

PERLND PQUAL SOQUAL 1 RCHRES INFLOW ICON 4

PERLND PQUAL IOQUAL 1 RCHRES INFLOW ICON 4

PERLND PQUAL SOQUAL 2 RCHRES INFLOW ICON 5

PERLND PQUAL IOQUAL 2 RCHRES INFLOW ICON 5

PERLND PQUAL SOQUAL 3 RCHRES INFLOW ICON 6

PERLND PQUAL IOQUAL 3 RCHRES INFLOW ICON 6

PERLND PQUAL SOQUAL 4 1.00 RCHRES INFLOW ICON 7

PERLND PQUAL IOQUAL 4 1.00 RCHRES INFLOW ICON 7

PERLND PQUAL SOQUAL 4 0.38626 RCHRES INFLOW ICON 8

PERLND PQUAL IOQUAL 4 0.38626 RCHRES INFLOW ICON 8

PERLND PQUAL SOQUAL 4 0.00529 RCHRES INFLOW ICON 9

PERLND PQUAL IOQUAL 4 0.00529 RCHRES INFLOW ICON 9

PERLND PQUAL SO QUAL 4 14.29167 RCHRES INFLOW ICON 10

PERLND PQUAL IOQUAL 4 14.29167 RCHRES INFLOW ICON 10

END MASS

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- > ***FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 271

Florida Department of Environmental Protection <Nam e> <Name> x x<

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PERLND PWATER AGWO 0.0833333 RCHRES INFLOW IVOL

PERLND PWTGAS AODOXM RCHRES INFLOW OXIF 1

PERLND PWTGAS AOHT RCHRES INFLOW IHEAT 1

PERLND PQUAL AOQUAL 1 RCHRES INFLOW NUIF1 2

PERLND PQUAL AOQUAL 2 RCHRES INFLOW NUIF1 1

PERLND PQUAL AOQUAL 3 RCHRES INFLOW NU IF1 4

PERLND PQUAL AOQUAL 4 1.0 RCHRES INFLOW OXIF 2

PERLND PQUAL AOQUAL 4 0.38626 RCHRES INFLOW PKIF 3

PERLND PQUAL AOQUAL 4 0.00529 RCHRES INFLOW PKIF 4

PERLND PQUAL AOQUAL 4 14.29167 RCHRES INFLOW PKIF 5

END MASS

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RCHR ES HYDR ROVOL RCHRES INFLOW IVOL

RCHRES CONS ROCON 1 RCHRES INFLOW OXIF 1

RCHRES CONS ROCON 2 RCHRES INFLOW IHEAT 1

RCHRES CONS ROCON 3 0.1 RCHRES INFLOW ISED 1

RCHRES CONS ROCON 3 0.2 RCHRES INFLOW ISED 2

RCHRES CONS ROCON 3 0.2 RCHRES INFLOW ISED 3

RCHRES CONS ROCON 4 0.95 RCHRES INFLOW NUIF1 2

RC HRES CONS ROCON 5 0.95 RCHRES INFLOW NUIF1 1

RCHRES CONS ROCON 6 0.80 RCHRES INFLOW NUIF1 4

RCHRES CONS ROCON 7 0.80 RCHRES INFLOW OXIF 2

RCHRES CONS ROCON 8 0.80 RCHRES INFLOW PKIF 3

RCHRES CONS ROCON 9 0.80 RCHRES INFLOW PKIF 4

RCHRES CONS ROCON 10 0.80 RCHRES INFLOW PKIF 5

END MASS

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PERLND PWATER PERO 0.0833333 RCHRES INFLOW IVOL

PERLND PWTGAS PODOXM RCHRES INFLOW ICON 1

PERLND PWTGAS POHT RCHRES INFLOW ICON 2

PERLND SEDMNT SOSED RCHRES INFLOW ICON 3

PERLND PQUAL POQUAL 1 RCHRES INFLOW ICON 4

PERLND PQUAL POQUAL 2 RCHRES INFLOW ICON 5

PERLND PQUAL POQUAL 3 RCHRES INFLOW ICON 6

PERLND PQUAL POQUAL 4 1.0 RCHRES INFLOW ICON 7

PERLND PQUAL POQUAL 4 0.01839 R CHRES INFLOW ICON 8

PERLND PQUAL POQUAL 4 0.00025 RCHRES INFLOW ICON 9

PERLND PQUAL POQUAL 4 0.68056 RCHRES INFLOW ICON 10

END MASS

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IMPLND IWATER SURO 0.0833333 RCHRES INFLOW IVOL

IMPLND IWTGAS SODOXM RCHRES INFLOW ICON 1

IMPLND IWTGAS SOHT RCHRES INFLOW ICON 2

IMPLND SOLIDS SOSLD RCHRES INFLOW ICON 3

IMPLND IQUAL SOQUAL 1 RCHRES INFLOW ICON 4

IMPLND IQUAL SOQUAL 2 RCHRES INFLOW ICON 5

IMPLND IQUAL SOQUAL 3 RCHRES INFLOW ICON 6

IMPLND IQUAL SOQUAL 4 1.0 RCHRES INFLOW ICON 7

IMPLND IQUAL SOQUAL 4 0.00424 RCHRES INFLOW ICON 8

IMPLND IQUAL SOQUAL 4 0.00006 RCHRES INFLOW ICON 9

IMPLND IQUAL SOQUAL 4 0.15705 RCHRES INFLOW ICON 10

END MASS

- LINK 41FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 272

Florida Department of Environmental Protection

MASS- LINK 44

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PERLND PWATER PERO 0.0833333 RCHRES INFLOW IVOL

PERLND PWTGAS PODOXM RCHRES INFLOW ICON 1

PERLND PWTGAS POHT RCHRES INFLOW ICON 2

PERLND SEDMNT SOSED RCHRES INFLOW ICON 3

PERLND PQUAL POQUAL 1 RCHRES INFLOW ICON 4

PERLND PQUAL POQUAL 2 RCHRES INFLOW ICON 5

PERLND PQUAL POQUAL 3 RCHRES INFLOW ICON 6

PERLND PQUAL POQUAL 4 1.0 RCHRES INFLOW ICON 7

PERLND PQUAL POQUAL 4 0.38626 RCHRES INFLOW ICON 8

PERLND PQUAL POQUAL 4 0.00529 RCHRES INFLOW ICON 9

PERLND PQUAL POQUAL 4 14.29167 RCHRES INFLOW ICON 10

END MASS

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RCHRES HYDR ROVOL RCHRES INFLOW IVOL

RCHRES CONS ROCON 1 RCHRES INFLOW OXIF 1

RCHRES CONS ROCON 2 RCHRES INFLOW IHEAT 1

RCHRES CONS ROCON 3 0.04 RCHRES INFLOW ISED 1

RCHRES CONS ROCON 3 0.08 RCHRES INFLOW ISED 2

RCHRES CONS ROCON 3 0.08 RCHRES INFLOW ISED 3

RCHRES CONS ROCON 4 0.75 RCHRES INFLOW NUIF1 2

RCHRES CONS ROCON 5 0.75 RCHRES INFLOW NUIF1 1

RCHRES CONS ROCON 6 0.45 RCHRES INFLOW NU IF1 4

RCHRES CONS ROCON 7 0.65 RCHRES INFLOW OXIF 2

RCHRES CONS ROCON 8 0.65 RCHRES INFLOW PKIF 3

RCHRES CONS ROCON 9 0.65 RCHRES INFLOW PKIF 4

RCHRES CONS ROCON 10 0.65 RCHRES INFLOW PKIF 5

END MASS

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PERL ND PWATER PERO 0.0833333 RCHRES INFLOW IVOL

PERLND PWTGAS PODOXM RCHRES INFLOW OXIF 1

PERLND PWTGAS POHT RCHRES INFLOW IHEAT 1

PERLND SEDMNT SOSED 1 0.04 RCHRES INFLOW ISED 1

PERLND SEDMNT SOSED 1 0.08 RCHRES INFLOW ISED 2

PERLND SEDMNT SOSED 1 0.08 RCHRES INFLOW ISED 3

PERLND PQUAL SOQUAL 1 0.85 RCHRES INFLOW NUIF1 2

PERLND PQUAL IOQUAL 1 RCHRES INFLOW NUIF1 2

PERLND PQUAL AOQUAL 1 RCHRES INFLOW NUIF1 2

PERLND PQUAL SOQUAL 2 0.85 RCHRES INFLOW NUIF1 1

PERLND PQUAL IOQUAL 2 RCHRES INFLOW NUIF1 1

PERLND PQUAL AOQUAL 2 RCHRES INFLOW NUIF1 1

PERLND PQUAL SOQUAL 3 0.70 RCHRES INFLOW NUIF1 4

PERLND PQUAL IOQUAL 3 RCHRES INFLOW N UIF1 4

PERLND PQUAL AOQUAL 3 RCHRES INFLOW NUIF1 4

PERLND PQUAL SOQUAL 4 0.70 RCHRES INFLOW OXIF 2

PERLND PQUAL IOQUAL 4 1.00 RCHRES INFLOW OXIF 2

PERLND PQUAL AOQUAL 4 1.00 RCHRES INFLOW OXIF 2

PERLND PQUAL SOQUAL 4 0.012873 RCHRES INFLOW PKIF 3

PERLND PQUAL IOQUAL 4 0.01839 RCHRES INFLOW PKIF 3

PERLND PQUAL AOQUAL 4 0.01839 RCHRES IN FLOW PKIF 3

PERLND PQUAL SOQUAL 4 0.000175 RCHRES INFLOW PKIF 4

PERLND PQUAL IOQUAL 4 0.00025 RCHRES INFLOW PKIF 4

PERLND PQUAL AOQUAL 4 0.00025 RCHRES INFLOW PKIF 4FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 273

Florida Department of Environmental Protection PERLND PQUAL SO QUAL 4 0.476392 RCHRES INFLOW PKIF 5

PERLND PQUAL IOQUAL 4 0.68056 RCHRES INFLOW PKIF 5

PERLND PQUAL AOQUAL 4 0.68056 RCHRES INFLOW PKIF 5

END MASS

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- factor

- > <Name> <Name> x x ***

IMPLND IWATER SURO 0.0833333 RCHRES INFLOW IVOL

IMPLND IWTGAS SODOXM RCHRES INFLOW OXIF 1

IMPLND IWTGAS SOHT RCHRES INFLOW IHEAT 1

IMPLND SOLIDS SOSLD 0.04 RCHRES INFLOW ISED 1

IMPLND SOLIDS SOSLD 0.08 RCHRES INFLOW ISED 2

IMPLND SOLIDS SOSLD 0.08 RCHRES INFLOW ISED 3

IMPLND IQUAL SOQUAL 1 0.85 RCHRES INFLOW NUIF1 2

IMPLND IQUAL SOQUAL 2 0.85 RCHRES INFLOW NUIF1 1

IMPLND IQUAL SOQUAL 3 0.70 RCHRES INFLOW NUIF1 4

IMPLND IQUAL SOQUAL 4 0.70 RCHRES INFLOW OXIF 2

IMPLND IQUAL SOQUAL 4 0.002968 RCHRES INFLOW PKIF 3

IMPLND IQUAL SOQUAL 4 0.000042 RCHRES INFLOW PKIF 4

IMPLND IQUAL SOQUAL 4 0.109935 RCHRES INFLOW PKIF 5

END MASS

- LINK 51

MASS- LINK 54

<- Volume

- > <

- Grp> <

- Member

- ><

-- Mult

-- > <

- Target vols> <

- Grp> <

- Member

- > ***

<Name> <Name> x x<

- factor

- > <Name> <Name> x x ***

PERLND PWATER PERO 0.0833333 RCHRES INFLOW IVOL

PERLND PWTGAS PODOXM RCHRES INFLOW OXIF 1

PERLND PWTGAS POHT RCHRES INFLOW IHEAT 1

PERLND SEDMNT SOSED 1 0.04 RCHRES INFLOW ISED 1

PERLND SEDMNT SOSED 1 0.08 RCHRES INFLOW ISED 2

PERLND SEDMNT SOSED 1 0.08 RCHRES INFLOW ISED 3

PERLND PQUAL SOQUAL 1 0.85 RCHRES INFLOW NUIF1 2

PERLND PQUAL IOQUAL 1 RCHRES INFLOW NUIF1 2

PERLND PQUAL AOQUAL 1 RCHRES INFLOW NUIF1 2

PERLND PQUAL SOQUAL 2 0.85 RCHRES INFLOW NUIF1 1

PERLND PQUAL IOQUAL 2 RCHRES INFLOW NUIF1 1

PERLND PQUAL AOQUAL 2 RCHRES INFLOW NUIF1 1

PERLND PQUAL SOQUAL 3 0.70 RCHRES INFLOW NUIF1 4

PERLND PQUAL IOQUAL 3 RCHRES INFLOW NUIF1 4

PERLND PQUAL AOQUAL 3 RCHRES INFLOW NUIF1 4

PERLND PQUAL SOQUAL 4 0.70 RCHRES INFLOW OXIF 2

PERLND PQUAL IOQUAL 4 1.00 RCHRES INFLOW OXIF 2

PERLND PQUAL AOQUAL 4 1.00 RCHRES INFLOW OXIF 2

PERLND PQUAL SOQUAL 4 0.27038 RCHRES INFLOW PKIF 3

PERLND PQUAL IOQUAL 4 0.38626 RCHRES INFLOW PKIF 3

PERLND PQUAL AOQUAL 4 0.38626 RCHRES INFLOW PKIF 3

PERLND PQUAL SOQUAL 4 0.00370 RCHRES INFLOW PKIF 4

PERLND PQUAL IOQUAL 4 0.00529 RCHRES INFLOW PKIF 4

PERLND PQUAL AOQUAL 4 0.00529 RCHRES INFLOW PKIF 4

PERLND PQUAL SOQUAL 4 10.00417 RCHRES INFLOW PKIF 5

PERLND PQUAL IOQUAL 4 14.29167 RCHRES INFLOW PKIF 5

PERLND PQUAL AOQUAL 4 14.29167 RCHRES INFLOW PKIF 5

END MASS

- LINK 54

MASS- LINK 99

<- Volume

- > <

- Grp> <

- Member

- ><

-- Mult

-- > <

- Target vols> <

- Grp> <

- Member

- > ***

<Name> <Name> x x<

- factor

- > <Name> <Name> x x ***

COPY OUTPUT MEAN 1 RCHRES INFL OW IVOL

COPY OUTPUT MEAN 2 RCHRES INFLOW OXIF 2

COPY OUTPUT MEAN 3 RCHRES INFLOW NUIF1 1

COPY OUTPUT MEAN 4 RCHRES INFLOW NUIF1 4FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 274

Florida Department of Environmental Protection COPY OUTPUT MEAN 5 RCHRES INFLOW ISED 2

COPY OUTPUT MEAN 6 RCHRES INFLOW ISED 3

END MASS

- LINK 99

END MASS

- LINK

END RUNFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 275

Florida Department of Environmental Protection 

## Appendix C : HSPF Model Land U se Classification versus FLUCCS Code

HSPF Model Land U se FLUCCS Code

Agriculture general 1820

Agriculture general 2140

Agriculture general 2150

Agriculture general 2160

Agriculture general 2310

Agriculture general 2320

Agriculture general 2410

Agriculture general 2430

Agriculture general 2431

Agri culture general 2432

Agriculture general 2510

Agriculture general 2540

Agriculture general 2600

Agriculture general 2610

Agriculture tree crops 2200

Agriculture tree crops 2210

Agriculture tree crops 2240

Forest 4110

Forest 4120

Forest 4130

Fore st 4200

Forest 4210

Forest 4280

Forest 4340

Forest 4370

Forest 4410

Forest 4430

High

- density residential 1300

Industrial and commercial 1400

Industrial and commercial 1480

Industrial and commercial 1510

Industrial and commercial 1550

Industrial and commercial 1700

Industrial and commercial 1840

Industrial and commercial 8110

Industrial and commercial 8140

Industrial and commercial 8300

Industrial and commercial 8330

Industrial and commercial 8350

Low

- density residential 1100FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 276

Florida Department of Environmental Protection HSPF Model Land U se FLUCCS Code

Low

- density residential 1180

Low

- density residential 1190

Medium

- density residential 1200

Mining 1600

Mining 1620

Mining 7430

Open land and barren land 1660

Open land and barren land 1890

Open land and barren land 7200

Open land and barren land 7400

Open land and barren land 7410

Open land and barren land 8200

Open land and barren land 8320

Pasture 2110

Pasture 2120

Pasture 2130

Rangeland 3100

Rangeland 3200

Rangeland 3300

Water 5100

Water 5200

Water 5250

Water 5300

Water 5600

Water 8360

Wetlan ds 6110

Wetlands 6170

Wetlands 6181

Wetlands 6200

Wetlands 6210

Wetlands 6220

Wetlands 6250

Wetlands 6300

Wetlands 6410

Wetlands 6430

Wetlands 6440

Wetlands 6460

Wetlands 6500FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 277

Florida Department of Environmental Protection 

## Appendix D : Response from the Department to Comments from the S JRWMD on

the DO and Nutrient TMDLs for the Main Stem of the Middle St. Johns River

August 6 , 2009

Ms. Mary E. Brabham, P.E.

Middle St. Johns River Basin Program Manager

St. Johns River Water Management District

975 Keller Road

Altamonte Springs, FL 32714

- 1618

Re: Responses from the Florida Department of Environmental Protection (the Department) to

comments from the St. Johns River Water Management District (SJRWMD) regarding the TMDLs

that the Department proposed in June of 2009 for impaired waters in the Middle St. Johns River

basin.

Dear Ms. Brabham:

Thank you very much for your letter dated on July 20, 2009. We appreciate the time and effort that you

and your colleagues took to review the draft dissolved oxygen and nutrient TMDLs that we proposed f or the impaired river segments of the Middle St. Johns River and to share your opinions and suggestions

with us. We are looking forward to continuing to work with the SJRWMD to develop and implement

TMDLs and restore impaired waters in the Middle St. Johns River basin. Please see our following

responses to your comments.

SJRWMD’s Comments by Dr. Sherry Brandt

- Williams:

General Comments:

1. I think the target concentrations will be sufficient to minimize or eliminate algal blooms and allow

SAV populations to continue to multiply in both lakes and throughout the river channel.

2. Methods for determining these concentrations are well founded on response relationships and

historic loading data.

3. Use of Dr. Jia’s HSPF model is fully warranted for determination of load reductions because of

the good fit to empirical data.

4. I agree that low DO in this entire system is either related to the organic concentration in the water

column and that it comes from both anthropogenic loading and from natural humic substances

typica l in black water systems. I therefore support the decision to allow nutrient TMDLs to

provide the necessary DO protection.

5. A table indicating the percentage of load specifically from upstream river sources versus

watershed loads would be helpful.

6. This report would benefit from an Executive Summary.

Specific C omments :

1. Why were hurricane and drought years removed from the results? These are normal fluctuations

occurring in this system over the longer period of record. Did analysis with these data produce

too high a variance in system performance?

2. Figure 1.2

– this does not s how the main channel or the diversion channel of Deep Creek into the

river.

3. In the initial analysis of water quality, was Chlorophyll a corrected for pheophytin? I see later in

the report that one analysis did use corrected, but I am not clear on the remainder of the report.

4. Figure 2.7

– please label axis.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 278

Florida Department of Environmental Protection Ms. Mary E. Brabham, P.E.

Middle St. Johns River Basin Program Manager

August 6, 2009

Page Two

5. Please provide data and calculations for residence times in Harney and Monroe. Our data shows

more similar residence times between the two lakes. This does not change any of the overall

conclusions. I’m just curious.

6. Typos

– pg 33 title change Do to Are different nutrient ....; pag 36 2 nd 

### full paragraph: can absorb s

light, produce smaller amount s of ..., 5 th 

### full p ... because the later latter has a ...; page 41 first

heading: ... what should be these targets be ?; page 47 2 nd 

### full paragraph: ... manner, to

analyzing analyze the DO and ...;

Response f rom the Department to Dr. Brandt

- Williams’ Comments:

1. For Dr. Brandt

- Williams’ general comments 1

- 4, the Department appreciates the support from

SJRWMD on the TMDL targets we proposed. We also want to thank SJRWMD, especially Dr.

Brandt

- Williams, for provi ding data and information, suggestions, and a field tour through the

Middle St. Johns River to help us better understand the system as we were developing the

TMDLs.

2. For general comments 5 to 6, we will take Dr. Brandt

- Williams’ suggestions and add an Exe cutive

Summary and more detailed loading estimates to the report.

3. For specific comment 7, we believe that Dr. Brand

- Williams raised a very valid question on

whether data should be excluded from certain analysis. We agree with Dr. Brand

- Williams that

dry and hurricane years are normal fluctuations occurring in the system for which we are

developing TMDL s . Theoretically, we should include all the data available to us in our analyses.

After reanalyzing the flow for the main stem segments and Lake Jesup out let, we realized that

excluding the chl a , TN, and TP concentrations from 2003 and 2004 might not be totally supported

by the flow data. We therefore decided to add these data back to the analyses for characterizing

the functional relationships between chl a and nutrients, and then revised Figures 3.1 and 3.2 of

the TMDL report

, accordingly. This revision does not influence the nutrient target setting because

the chl a vs. nutrient functional relationships were not used to develop the nutrient criteria. Thi s

revision does cause the “achievable chl a concentration” to change based on the target TN and

TP concentrations and the chl a vs. nutrient functional relationships ( Table 3.6 of the TMDL

report). However, the change is relatively minor. Before this revision, the achievable chl a

concentrations for the upstream and downstream segments were 5.6 **μ** g/L and 9.6 **μ** g/L,

respectively. After the revision, the achievable chl a concentrations are 5.7 **μ** g/L and 9.1 **μ** g/L,

respectively, for the upstream and downstream seg ments.

However, after all the reanalyses were conducted, we decided that the chl a , TN, and TP

concentrations from 2000 still would not be included in the chl a vs. nutrient functional relationship

analyses. As Dr. Brandt

- Williams surmised correctly in her comments, if we add in the data from

2000, the uncertainty of the functional relationship greatly increase s . We agree with Dr. Brandt

Williams that the dry year is also part of the natural fluctuation occurring in the main stem of the

Middle St. Johns River. However, the goal of the analyses of the functional relationship between

chl a and nutrients is to find a relatively “typical relationship” that represents the long

- term average

condition. For the 10

- year period that we used in our analysis (1996 through 2007), the total

annual flow for 2000 was less than the 5 th 

### percentile of all the annual flows during the period.

Thus, we believe that this was not a “typical” year. We don’t want the functional relationship

established using the other 9 years of data to be inappropriately skewed by data from this single

year. We feel that it is appropriate to clearly describe what the model cannot do (describing the

atypical condition) and focus on the average trend of the relationship.

4. Regarding specific comment 8, we will revise the map to include Deep Creek.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 279

Florida Department of Environmental Protection Ms. Mary E. Brabham, P.E.

Middle St. Johns River Basin Program Manager

August 6, 2009

Page Three

5. For specific comment 9, yes, all the chl a values included in the TMDL report are corrected chl a

values. W e will clarify that in Chapter 2 of the TMDL report.

6. We will address all the edit ing errors raised in specific comments 10 and 12.

7. For specific comment 11, the water residence times for Lake Harney and Lake Monroe were cited

from a report provided by BCI for the period from 1995 through 2006. The report does not

include the raw data used for the calculation. We will check with the consulting firm and find the

raw data that were used for the calculation.

SJRWMD’s Comments by Dr. Eric Marzolf:

General C omments:

7. I think the target concentrations are well considered and protective.

8. Express phosphorus concentration with three significant digits. The TP target is displayed as

both 0.070 and 0.068 mg/L, but it appears the official target is 0.068. Correct?

9. Correct the GIS layers so that Jesup is spelled correctly.

10. In tables for containing the WBIDs, add the reach names also, see Table 4.6 for a good example.

Specific Comments:

11. Table 2.1

– Spelling typos

12. Figure 2.7

– Missing axis labels

13. Section 3.1

– What are the criteria changing the class of a waterbody from III to I based upon

surface water withdrawals?

14. Pg 33

– Statement that data were excluded from 2003 and 2004 due to hurricanes; however the

years of higher hurricane activity were 2004 and 2005. Explain ?

15. Pg 33

– The Chl:nutrient ratio in Lake Jesup is greater than the SJR mainstem WBIDs due to

combination of factors, including longer hydraulic residence times and lower color.

16. Figs 3.1 and 3.2

– Is there a mechanistic reason for the selection equation to fit the data? TP:Chl

relationships are typically viewed as linear or logistic curves.

17. Pg 41

– General question about the term “assimilative capacity”. It seems to me what we are

trying to determine is the system’s vulnerability to a pollutant, rather than its ability to assimilate a

pollutant. Assimilation to me implies that the pollutant has been converted into a form that is no

longer being transported downstream, eg. Sediment storage. I think conceptually it is correct to

define targets protective of lakes and assume they will also be protective of river stretches, but

not because the lakes assimilate the nutrients, but because the lakes have a lower tolerance for

nutrients.

18. Pg 43 & Fig 3.4

– Determination of TN target from TP requires extrapolating beyond the available

annual mean data. For comparison, District TP vs. TN data. The TN concentration associated

with TP 0.060 ~ 1.5 mg/L, compared to 1.18.

19. Section 4

– I think it would be good to clarify further the relationships between the HSPF sub

basin s and the impaired waterbody WBIDs. Some of the WBIDs include only the waterbody,

while other include a portion of the watershed. Perhaps a table that lists each WBID and the

HSPF basin which make up the watershed contributing to the WBID. Perhaps also a map with

arrows indicating the flow paths and a well defined boundary for the watershed over which load

reductions will be applicable under this TMDL.

20. Section 4.2.2

– I think this section would benefit from a greater discussion of how loads are

calculate d based upon land use, soils etc. Perhaps include a table of runoff coefficients used.

Discussion of how re

- use loads are incorporated.

21. Table 4.4

– Unclear whether this table contains percent total impervious or percent directly

connected impervious, which is more important to HSPF when calculating nutrient loads.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 280

Florida Department of Environmental Protection Ms. Mary E. Brabham, P.E.

Middle St. Johns River Basin Program Manager

August 6, 2009

Page Four

22. Table 4.8

– Need to include the units.

23. Fig 4.8C

– Show negative flow data.

24. Fig 4.9

– Lable the n ame of the USGS site and use linear Y

- axis in C.

25. Tables 4.11 and others. Suggest replacing N/A with not applicable. N/A can mean either “not

applicable” or “not available” and here the meaning is not applicable.

26. Tables 5.1 & 5.2

– Need to add the word “target” to titles

27. Table 6.2

– Title is redundant, TMDL daily load. Also, the units should be /day not /yr.

Response from the Department to Dr. Eric Marzolf’s Comments:

We appreciate Dr. Marzolf’s very thorough review.

1. For Dr. Marzolf’s general comments 13 through 16, we thank him and the SJRWMD’s support of

the nutrient targets for the Middle St. Johns River segments. We will address all the editing

comments. As for the final nutrient targets, they should be 0.07 mg/L for TP and 1.18 mg/L for

TN. Whil e we used three significant digits in deriving the TP target (0.068), because the method

detection limit for most commonly used phosphorus analytical method is about 0.01 mg/L, we

present the final TP target as 0.07 mg/L.

2. We will revise the TMDL report to address all the editorial comments in the specific comments

section ( s pecific c omments 17, 18, 28, 31, and 32).

3. For specific comment 19, if we understand Dr. Marzolf’s question correctly, the Class I and Class

III freshwater waterbodies have the same DO and nutrient criteria.

4. For specific comment 20, we reanalyzed the flow data for the main stem and Lake Jesup outlet,

and found that our original decision to exclude the data from 2003 and 2004 is not totally

supported by the flow data distribution. The refore, we add the chl a , TN, and TP concentration

data from these two years to the data set we used for chl a vs. nutrient relationship analyses.

5. For specific comment 21, we concur.

6. For specific comment 22, the relationship between chl a and nutrients in much of the published

literature takes the form of a power equation (Baker et al.

, 1981 ; Chapra, 1997), which is the type

of equation we used in the TMDL report. In fact, most of the early classic chl a

- nutrient

relationship characterized by researchers such as Jones and Bachman (1976) and Sakamoto

(1966) all took the form of power equations. That is why we see the relationship between chl a

and nutrients in the published literature taking the following forms:

log (Chl a ) = a *log (TP) – b

log(Chl a ) = b + a* log (TN)

Of course, when ”a” in the above equation is close to one, we can get a linear model. That

represents a special case of the more general power equation.

A l ogistic equation is used more often to represent the growth curve of organisms. It is more of a

growth time series

, with the standing stock being the Y

- axis and time lapse the X

- axis.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 281

Florida Department of Environmental Protection Ms. Mary E. Brabham, P.E.

Middle St. Johns River Basin Program Manager

August 6, 2009

Page Five

**References:**

Baker, L.A., P.L. Brezonic, and C.R. Kratzer. 1981. Nutrient l oading

– Trophic s tate r elationships

in Florida l akes.

Chapra, S. C. 1997. Surface w ater -q uality m odeling. WCB McGraw

- Hill.

Jones, J. R.

, and R. Bachman. 1976. Prediction of p hosphorus and c hlorophyll l evels in lakes. J

W

ater P ollut C on F 48: 2176

- 2182

.

Sakamoto, M. 1996. Primary p roduction by p hytoplankton c ommunity in s ome Japanese l akes

and its d ependence on d epth. A rch. Hydrobiol. 62: 1

- 28.

7. For specific comment 23, we concur.

8. For specific comment 24, we agree with Dr. Marzolf that calculating the TN target concentration

based on the TN/TP correlation slightly extrapolated beyond the available data range. The

difference between the SJRWMD’s dataset and our dataset is that we used annual average TN

and TP concentrations, instead of the monthly averages used by the SJRWMD, to construct the

correlation because we handle the nutrient assessment on an annual average basis. Because in

our case the predicted target is so close to the lower end of the regression curve (the lowest

annual average TP and TN concentrations calculated based on measured data were 0.07 mg/L

and 1.32 mg/L, respectively, while the target TP and TN concentrations are 0.07 mg/L and

1.18 mg/L, respectively), we considered that, with such a small difference between the annual

average TP and TN concentrations calculated using the measured data and the target TP and TN

concentrations, the correlation between TN and TP should hold and a dramatic change in the

relationship between the two nutrients is not expected.

9. For specific comments 25 and 26, we will add more information to Chapter 4 to describe the

hydrolog ic connections between different HSPF sub

- basin s and the way in which HSPF handles

the hydrology and water quality simulation. However, for more detailed information, readers

probably still need to rely on the HSPF U ser’s M anual

.

10. For specific comment 27, the percent impervious areas in Table 4.4 are DCIAs. In fact, in the

text immediately preceding the table, we indicated that:

**For the TMDLs covered in this report, only the DCIAs were modeled as imper**  **v ious areas.** 

The impervious areas that were not DCIAs were aggregated into the pervious land areas for

model simulation. The following four land use types were considered to have DCIA s: low

- , medium

- , and h igh

- density residential

, and industrial. Percent impervious areas for each land

use were assigned based on previous modeling experience in the St. Johns River B asin and

finalized through the hydrology calibration. **Table s**  **4.4a** and **4.4b** show the percent areas that

were considered impervious areas in the HSPF M odel setup by the SJRWMD.

We will revise the table heading for Table 4.4 to make it clearer that the impervious areas

included in the table are DCIAs.

11. For specific comment 29, we can revise Figure 4. 8c to show the negative value. However, it

should be noted that the HSPF M odel is not a hydrodynamic model and therefore does not

handle reverse flow.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 282

Florida Department of Environmental Protection Ms. Mary E. Brabham, P.E.

Middle St. Johns River Basin Program Manager

August 6, 2009

Page Five

12. For s pecific comment 33, Table 6.2 was specifically added to the report per EPA’s request for a

total maximum “daily” load. However, we will correct the typo in the table heading.

SJRWMD’s Comments from Dr. Rob Mattson:

28. The targets for TN and TP look adequ ately protective.

29. My one concern was their use of 1999/2000 landuse & cover. 2004 is available now on our

website, so the early land use/land cover data are outdated. They should use 2004 LU/LC.

Response from the Department to Dr. Rob Mattson’s Comments :

1. For Dr. Mattson’s comment 34, thanks for supporting the nutrient targets.

2. For Dr. Mattson’s comment 35, 2000 land use was used in this TMDL because the load

simulation was conducted using the HSPF M odel set up by the SJRWMD. The model simulation

period is 1995 through 2003. The year 2000 land use was chosen for model calibration and

validation because 2000 was in the middle of the model simulation period. Using 2004 land use,

while more up to date, is beyond the model simulation period

, and therefore the land use effects

were not reflected in the hydrology and water quality data used for the model calibration.

Again, we sincerely appreciate the input and contribution from the SJRWMD in developing these TMDLs.

We will work closely with the water manag ement district in future TMDL development and implementation

and restore impaired waters in the Middle St. Johns River B asin

.

Sincerely,

Jan Mandrup

- Poulsen, Administrator

Watershed Evaluation and TMDL Section

ec: Chris Ferraro/DEPFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 283

Florida Department of Environmental Protection 

## Appendix E : Res ponse from the Department to Seminole County Comments on

the DO and Nutrient TMDLs for the Main Stem of the Middle St. Johns River

August 5, 2009

Ms. Kim Ornberg, PE

Principal Engineer

Water Quality Section

Seminole County Public Works

177 Bush Loop

Sanf ord, FL 32773

Re: Response to the comments from Seminole County on the Middle St. Johns River TMDLs

Dear Ms. Ornberg,

Thank you for your time and effort in reviewing the TMDLs that the Department recently

proposed for impaired waters in the Middle St. Johns River B asin . We appreciate your detailed

review and the well

- thought

- out questions that you presented in your comments.

In the order in which they were presented, the following are the comments from Seminole

County and our responses:

Seminol e County Comment 1:

Our first comments are general in nature and are questions regarding the decision making

process. After Secretarial adoption of the previous Verified Impaired List (2003), there were

numerous WBID’s identified as “medium” priority; only those waterbodies/WBID’s identified as

“high” had TMDL’s developed (i.e. Lake Jesup and Cranes Strand Drain in Seminole County)

during the first cycle. We had thought that many of those “medium” priority WBID’s would have

TMDL’s adopted during this curr ent cycle. County staff was quite surprised to find that none of

those WBID’s which had been expected to have TMDL’s developed had not been developed

and that many WBID’s which had not expected to have TMDL’s developed, such as those

impaired for fecal c oliforms only (Gee Creek, Soldiers Creek, Smith Canal), did have TMDL’s

developed this cycle.

We were also under the impression that as stakeholders, the local governments/agencies would

be given some input as to what impairments were more critical to us , thereby assisting the

Department in the decision making process of what TMDL’s to develop during this cycle. After

participating in the Lake Jesup TMDL/BMAP, it would seem logical to develop TMDL's and/or

BMAP's for nutrient impaired waterbodies upstream of Jesup that discharge directly into it, such

as Lake Howell (2997B) and Bear Gully Lake (3009). In a proactive attempt to assist in the

upcoming TMDL development, the County funded in

- depth nutrient and hydrologic budget

studies for each of these waterbodies mentioned, that were completed by Environmental

Research & Design, Inc. While the information obtained from these studies is and will continue

to be used by the County, it had originally been thought that this information would be provided

to the Department for use in TMDL development.

We would respectfully like to request that the Department make available the rationale that was

used to determine which impaired WBID would have a TMDL developed this cycle. With soFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 284

Florida Department of Environmental Protection many nutrient impairments in the MSJR Basin, it is very curious as to why the bulk of TMDL’s (4

in the MSJR Basin, besides the main stem river & associated lakes) were developed for fecal

coliform impairments, when it is well documented that these are very poor indicators of human

health risk and there are no conventional stormwater BMP’s available to address these

questionable impairments. US EPA is actively seeking alternative indicator species and FSA

(and others) is (are) currently funding a research project to identify a better, more reliable

indicator. This would not seem to be the most cost effective use of limited resources for both

the Department and the local government and other affected stakeholders.

Response:

Most of the TMDLs that we developed for the Middle St. Johns River Basin this year were

Consent Decree

– ordered TMDLs. Several TMDLs were also proposed for non

- Consent

Decree

– listed waters that are hydrologically connected to the Consent Decree waters. These

Consent Decree TMDLs have court

- ordered legal deadlines that the Department and EPA are

obliged to meet. Because of the large number of Consent Decree

– listed waters that we needed

to deal with this year for the entire s tate (more than 100), the relatively short time available to

develop these TMDLs, limited staff power, and budget reductions, the Department did not have

enough resources to tackle those non

- Consent Decree waters that were previously verified

through the s tate’s I WR assessment process. These are the water segments that are on the

Verified List and h ave a “Medium” priority for TMDL development. However, as most of the

remaining Consent Decree TMDLs will be addressed in the next three years, developing TMDLs

for s tate

- verified waters will become the focus of the TMDL P rogram . At that time, we will

ce rtainly work very closely with local government s , water management district s , and other local

stakeholders to determine the priorities for these waters.

Seminole County Comment 2:

Another process question is this: how can or why would the Department delist two waterbodies

(Harney 2964 and Monroe 2893D) off of the adopted verified list for nutrients and then develop

TMDL's for them? Why not leave them on the adopted verified list and then develop TMDL’s for

them?

Response:

Both Lake Harney and Lake Monroe were verified for DO and nutrient impairments in the

Department’s Cycle 1 assessment. In the Cycle 2 assessment that the Department conducted

earlier this year, the impairments of these two waters were confirmed. We never delisted these

two waters for t he DO and nutrient impairments. Possibly the confusion was caused by the fact

that these two waterbodies were not on the Cycle 2 Verified List posted on the Department’s

W ebsite . In fact, the Cycle 2 Verified List only includes the impairments that the D epartment

newly verified during the Cycle 2 assessment. The waterbody/parameters that were verified in

the Cycle 1 assessment were not included on the Cycle 2 Verified List, to avoid having the

Secretary sign a Verified List that readopts many verified impairments. Therefore, if a given

waterbody

- parameter i s included i n the Cycle 1 Verified List, as long as the particular

waterbody

- parameter is not included i n the Cycle 2 Delist List, the verified impairment remains

and we will develop a TMDL for the wat erbody.

Seminole County Comment 3:

These are more specific comments:

First the “Nutrient and Dissolved Oxygen TMDLs for the Middle St. Johns River Segments

between the Inlet of Lake Harney (2964) and the St. Johns River above the Wekiva RiverFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 285

Florida Department of Environmental Protection (2893C)” doc ument was reviewed. The basis for this TMDL report is that FDEP has determined

that Lakes Harney and Monroe, as well as that portion of the St. Johns River between Lake

Harney and the Wekiva River, are impaired for at least dissolved oxygen (DO). In the case of

Lake Harney, Lake Monroe, and that portion of the St. Johns River between the Lake Jesup

outfall and the Wekiva River, impairment was noted for nutrients as well.

Overall, the conclusion that nutrients are the basis for DO impairment for any TMDL report is

predicated upon the following logic

–

 DO levels are depressed below appropriate levels

 Low levels of DO are related to an increase in fixed organic carbon

 Higher levels of fixed organic carbon are related to nutrient supply

 Nutrient supply is elevated due to anthropogenic activities

FDEP’s TMDL report addresses most of these issues, for most of the WBIDs in the TMDL.

However, some concerns and/or areas where further assessments would be appropriate include

the following:

1. Water quality influence of Lake Jesup not fully integrated into the TMDL conclusions

 Nutrient levels (especially TP) are higher for those WBIDs downstream of Lake

Jesup compared to WBIDs upstream of Lake Jesup

 Level s of both chlorophyll

- a (chl

- a) and biological oxygen demand (BOD) are

substantially higher in WBIDs below Lake Jesup (more than can be explained by

nutrient levels in those WBIDs alone)

 The amount of chl

- a “produced” per unit amount of nitrogen and phosphorus is

higher for WBIDs below Lake Jesup than for WBIDs above Lake Jesup

 The amount of BOD associated with chl

- a is greater in WBIDs below Lake Jesup

than in WBIDs above Lake Jesup

2. The use of an appropriate background concentration of dissolved oxygen given the

WBIDs proximity to wetlands and the high color present in the St Johns River and its

tributaries

Evaluating the upstream and downstream correlations of Lake Jesup suggest that Lake Jesup

plays an important role in structuring water quality for WBIDs 2893E, 2893D, and 2893C, which

comprise Lake Monroe and portions of the St. Johns River just upstream and downstream of

Lake Monroe. The following table displays median values for DO, BOD, chl

- a, TN and TP for

these WBIDs.

WBID DO BOD Chl

- a TN TP

2964A 6.9 2.0 4.18 1.42 0.07

2964 6.9 1.9 3.49 1.79 0.09

2893F 6.5 2.2 2.37 1.35 0.07

2893E 6.4 3.0 7.53 1.52 0.10

2893D 7.2 2.7 11.80 1.56 0.09

2893C 7.04 2.8 12.15 1.60 0.09



### The average TN value (average of the medians) for those WBIDs above Lake Jesup (2964A,

2964, and 2893F) is 1.52 mg / liter, vs. 1.56 for those WBIDs below Lake Jesup (2893E, 2893D,

and 2893C), an increase of less than 3 percent below the lake. For TP, values above LakeFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 286

Florida Department of Environmental Protection Jesup average 0.077, vs. 0.093 mg / liter below Lake Jesup, an increase of approximately 21

percent below the lake.

Levels of chl

- a for WBIDs above Lake Jesup average 3.35 μg / liter, vs. 10.49 for WBIDs below

the lake, a more than 3

- fold increase below the lake. Levels of BOD above and below Lake

Jesup average 2.03 and 2.83 mg / liter, respectively, an increase in BOD of 40 percent below

the lake.

The relationship between TN and chl

- a and TP and chl

- a is such that the same amount of TN

and TP results in substantially more phytoplankton abundance in regions below Lake Jesup, as

opposed to areas above Lake Jesup. These results were interpreted as evidence that

significant amounts of phytoplankton (and apparently TP as well) are discharged into the St.

Johns River from Lake Jesup.

When comparing Lake Monroe (below Lake Jesup) and Lake Harney (above Lake Jesup) levels

of TN and TP are 7 and 29 percent higher in Lake Monroe, while levels of chl

- a are nearly 3

- fold

higher in Lake Monroe. Levels of BOD are 35 percent higher in Lake Monroe, compared to

Lake Harney. Average turnover times for Lakes Monroe and Harney are estimated at 23 and 15

days, respectively, values that could explain differences in chlorophyll

- a due to differences in

residence time, but which do not explain the difference in l evels of TP. In contrast, the turnover

time for Lake Jesup averages approximately 90 days. The long turnover time in Lake Jesup

can explain some of the elevated levels of chl

- a (i.e., longer time for phytoplankton to grow) but

it cannot by itself explain the elevated levels of TP in Lake Jesup.

Given its influence on the system it seems appropriate to incorporate the full suite of influences

of Lake Jesup discharges on water quality within the St. Johns River, especially for those

WBIDs below Lake Jesup, is essential, but not fully investigated in this TMDL. For example,

could various restoration activities in Lake Jesup fundamentally affect water quality such that

downstream improvements might be noted as well? Could such projects (in Lake Jesup) be

mo re valuable than stormwater retrofit projects within the Lake Monroe watershed, to protect

Lake Monroe itself? A more integrated approach to TMDL development would be appropriate,

wherein Lake Jesup BMAP projects are fully integrated to determine their potential downstream

impacts on the St. Johns River and Lake Monroe.

As is associated with most TMDL efforts, and most water quality modeling efforts, there is large

amount of variability associated with relationships between nutrient levels and phytoplankto n

abundance. For example, the r 2 

### value found when examining the relationships between

chlorophyll

- a and levels of TN and TP examined in this report ranged between 0.438 and

0.501. Consequently, approximately half or more of the variability in phytoplankton abundance

appears to be due to factors other than nutrient availability alone.

Levels of phytoplankton in these WBIDs appear to be somewhat strongly correlated with BOD,

with an additional relationship between BOD and color. As levels of color do not likely represent

an anthropogenic influence, it will be important to have a thorough understanding of what is a

natural “background” level of DO (based on seasonally changing levels of color) that is

appropriate for these WBIDs. For example, the TMDL for Long Branch (in Orange County) uses

a site specific alternative criterion (SSAC) for DO of less than 3 mg / liter. Work in the

Everglades also suggests that the existing DO criterion for freshwater systems (5 mg / liter) is

unattainable and inappropriate in that system. Reference stations used in FDEP’s TMDL for the

Gordon River (located in the Picayune Strand in South Florida) also do not meet Florida’s DO

standard. As diurnal fluxes in DO concentrations and other factors are a well

- documented

phenomen a in many water bodies throughout Florida, a simple DO standard that does notFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 287

Florida Department of Environmental Protection account for the affects of salinity (when appropriate), water temperature, and time of day is

increasingly out of sync with the scientific literature on water quality. The need for a potential

SSAC for DO in these WBIDs is worth investigating, prior to pursuing potentially expensive

retrofit projects for stormwater loads.

Response:

We are very glad that Seminole County agrees that water quality differs between the St. Johns

Ri ver segments upstream of the Lake Jesup outlet and downstream of the Lake Jesup outlet. In

fact, in Chapter 2 of the TMDL report, we analyze in detail the differences between the

upstream and downstream segments. The general conclusion from the data analyses was that,

while the nutrient concentrations (TN and TP) were slightly higher in the downstream segments

than the upstream segments, the differences were relatively minor (see Tables 2. 5c and 2. 5d of

the TMDL report). What did appear to be dramatically different were the chl a concentrations in

the upstream and downstream segments (see Table 2. 5a of the TMDL report). This prompted

the questions posed in Chapter 3

— i.e., whether the functional relationships between chl a and

nutrients were different in the upstream and downstream segments and what caused the

observed differences.

After compar ing all the available hydrolog ic information and water quality constituents of the

upstream and downstream segments (pages 31 to 40 of the TMDL report), we concluded that

the small difference in nutrient concentrations and large difference in chl a concentrations in the

upstream and downstream segments were caused by the fact that the long

- term average chl a

concentration in Lake Jesup was about 6 to 7 times higher than the long

- term average chl a

concentration in the main stem of the St. Johns River (upstream of Lake Jesup), while the long

term average nutrient concentrations of the lake were less than 2 times higher than the nutrient

concentrations in the main stem segm ents of the St. Johns River. The higher chl a- to

- nutrient

ratio in Lake Jesup (compared with those in the river main stem segments) was caused by the

longer water residence time of Lake Jesup, which is about 3 months, compared with 15 to 20

days for the main stem lakes (Lake Harney and Lake Monroe).

We also compared the flows at the outlet of Lake Jesup and at the outlet of Lake Monroe and

concluded that river dilution of the Lake Jesup discharge alone was mostly responsible for the

observed upstream and downstream difference. The final conclusion from all these analyses

was that the same TN and TP targets are appropriate for both the upstream and downstream

segments, but expectation s for the achievable chl a concentrations should be different. Even

with the same target TN and TP concentrations, the downstream segments should have a

higher expected chl a concentration because they receive discharge from Lake Jesup, which has

a higher chl a- to

- nutrient ratio due to the longer water residence time. We consider the higher

achievable chl a concentration in the downstream segments to be a natural condition.

The impact of Lake Jesup on nutrient conditions in the main stem was also considered as part

of the HSPF modeling exercise. The discharge of Lake Jesup into t he main stem segment was

incorporated into the HSPF M odel as a boundary condition. When simulating the target loading,

we found that, as long as we achieved the TMDL conditions that we developed for Lake Jesup

and also applied the appropriate percent reductions to the upstream loads from the Upper St.

Johns River and Econlockhatchee River (as well as the point and nonpoint sources in the

watersheds immediately adjacent to these impaired waters), we should be able to achieve the

main stem nutrient targets ( Chapter 5). I n other words, for the Lake Jesup watershed, this

TMDL does not ask for higher percent reductions than those established for the Lake

Jesup TMDL. We will add more summary language to Chapter 5 to describe how Lake Jesup

loading is handled in the TMDL. In addition, we will create more tabulated information in

Chapter 5 to split the needed percent reductions from the upstream loadings and percentFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 288

Florida Department of Environmental Protection reduction needed for the watershed immediately adjacent to the impaired water segments. We

believ e the added information will clarify the way in which we developed the target loadings.

We agree with you that there are uncertainties associated with the targets that we proposed.

This is exactly why we attached the MOS to each TMDL that we develop, making sure that the

conservative assumption will be protective enough to address the uncertainty identified in this

TMDL report.

Target DO concentration is a complicated issue. Given the short time available to develop

these TMDLs, we don’t have enough information to identify and quantify the contributions from

all the environmental factors that may influence DO concentration s in these main stem

segments . These factors include

, but are not limited to, DO enrichment through reaeration, DO

consumption by water column BOD, DO enrichment through phytoplankton photosynthesis, DO

consumption by phytoplankton and bacterioplankton, sediment oxygen demand (SOD) , wetland

low DO discharge, and the possible inhibitory effects of humic materials on the metabolic

activi ties of bacterioplankton. To understand the DO environment in the Middle St. Johns

segments more clearly, we would want to collect more information about these factors from

local waters. We suggest that this be the goal of possible future research projects for these

waters. For this TMDL, we took the approach of address ing nutrient loadings from

anthropogenic sources. Once we achieve the nutrient goals, the result ing DO concentration will

be considered the natural DO concentration, even if it is still lower than the existing 5.0 mg/L

state criteri on

.

Seminole County Comment 4:

Second, the “Dissolved Oxygen TMDL for the Smith Canal (WBID 2962)” document was

reviewed with the following comments:

1. Smith Canal is an intermittently dry Urban Ditch

 Sm i th Canal was never intended to be swimmable and fishable and is designed,

rather to manage and convey stormwater. In parts, it is concrete lined or consists of

a manufactured canal cross section. Per the pictures in the TMDL report itself, it is

shown to be a drainage ditch with overgrown vegetation.

R esponse:

There are two aspects to this comment. First, Smith Canal is a stormwater canal and was not

built to support the designated use of a Class III water. This issue has been raised on many

occasions but is beyond the scope of this TMDL report. For now, the s tate’s water quality

standard does not have a designated use classification specifically defined for urban stormwater

canals. In other words, there are no water quality criteria specifically est ablished for an urban

stormwater conveyance system. Stream water quality criteria are applied to these urban

systems. Reclassifying the designated use for the urban canal has been a topic of discussion,

but no conclusions have been drawn from these discussions. However, Smith Canal

discharges to the main stem of the St. Johns River. To achieve the nutrient targets for the main

stem segments, the human land use areas are required to reduce the nitrogen and phosphorus

loading by more than 30 percent from t he existing condition. The Smith Canal TMDL per se

only requires a 26 percent reduction in TP. In other words, the Smith Canal TMDL itself did not

ask for a greater load reduction than what is needed to protect water quality in the main stem.

The second aspect of the comment is that factors other than nutrients (for example, overgrown

vegetation) may also contribute to the low DO concentration in the canal. In fact, we also

realized the uncertainties associated with the nutrient targets established to address the low DOFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 289

Florida Department of Environmental Protection condition in the system. This is why, in Section 3.2.3 of the TMDL report, we put in a

disclaimer, indicating that the TMDL focuses on addressing the anthropogenic TP. If we

achieve the nutrient target and the DO concentration still does not meet the criteri on , it would be

considered natural, due to the input of organic materials from the surrounding woodland and the

overgrow t n of emergent aquatic plants in the canal.

Seminole County Comment 5:

2. Inconsistent leap between correlation water quality parameters and a causal

relationship.

 T ypically, high nutrient concentrations would be shown to correlate to chlorophyll

- a

concentrations. Then the Chlorophyll

- a concentrations would correlate to BOD and

there is no mention of these correlations in the report. Without this causal

relationship it is insufficient to presume that because TP and DO are correlative, it is

the nutrients alone is forcing DO levels below water quality standards. Possible

alternatives to the correlation as presented include:

o High BOD is caused by the in

- stream vegetation and the stagnant nature of

the system, between storm events. Whereby, perhaps clearing the

vegetation would increase water quality from a DO perspective (removing the

DO depression during biomass respiration) but it could increase downstream

passage of nutrients via removal of a biomass nutrient sink.

o High TP could be from release from sediments during low DO periods, rather

than low DO being due to high TP.

 A lternatively, in Smi th Canal the dissolved oxygen standard may not properly account

for warm waters with high biomass, similar to data showing that "reference" site

stations in drainage ditches in the Everglades fail DO standards, despite the fact that

they were used for "bac kground" nutrient levels.

R esponse:

Nutrients can certainly influence the DO concentration in surface waters by influencing

phytoplankton biomass, which, in most cases, can be represented by the chl a concentration.

However, phytoplankton typically dominate water column communities in lakes and high

- order

streams and rivers. For example, the Middle St. Johns River main stem segments receive

discharges from the Econlockhatchee River, which in turn receives discharges from the Little

Econlockhatchee River, which in turn receives discharges from Crane Stra nd and Crane Strand

Drain, so that the main stem segments can be consider ed a fourth

- order stream (river)

segments in which we would expect a certain level of phytoplankton. That is why we looked at

the relationship between chl a and nutrient concentrations when we developed nutrient and DO

TMDLs for these segments.

However, Smith Canal is different. It is a first

- order flow

- through system, which is typically

characterized by relatively shallow water and low water residence time. Benthic algae and

rooted or emergent aquatic vegetation typically dominate the primary producer communities in

this kind of system. C hl a concentration is not necessarily the best indicator of the biomass of

primary producers. This is one reason that we did not just look at the relationship between chl a and nutrient concentrations. In other words, in this kind of system, nutrients can influence DO

concentration by influencing the biomass of benthic algae, which is not very well

- represented by

the chl a concentration. In addition, the sediment from the watershed that has accumulated at

the canal bottom also provides nutrients to support the growth of aquatic vegetation, which also

influence s the DO concentration in the canal. This source of TP can also be cut back when the

watershed TP loadings into the canal are controlled.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 290

Florida Department of Environmental Protection Another source of DO consumption is benthic bacteria. As you mentioned, the canal may

receive a lot of organic carbon from riparian vegetation, which represents an important source of

organic carbon for bacteria communities in the canal. These bacteria, while using organic

carbon to produce their biomass, also need phosphorus for their growth. The e xcessive input of

nutrients into the canal system can stimulate bacteria to take up more organic carbon to

produce more bacteria biomass and therefore consume more oxygen in the system. This is

another link between nutrient and DO concentration that cannot be manifested through the chl a

and nutrient relationshi p. This is why, for Smith Canal, we addressed the impact of nutrient s on DO concentration by looking at the DO and TP relationship directly instead of through the

phytoplankton pathway.

TP release from sediment is certainly a possible reason for the correlation between DO and TP

in some water systems. However, for Smith Canal, sediment nutrient release may not result in

a significant correlation between DO and TP. Sediment nutrient release is typically observed

when the sediment redox potential drops be low

- 200 mvolt, which is often observed in the

hypolimnion of some deep and stratified lakes and rivers. D O in Smith Canal, while lower than

5.0 mg/L on some occasions, has not created a totally anaerobic condition in the canal yet.

Therefore, we feel th at the significant correlation between DO and TP reflects that TP controls

DO

, instead of the other way around.

Temperature certainly is another very important factor that may influence the DO concentration

in ambient waters, especially in a shallow syste m such as Smith Canal. However, during our

field survey of the canal, the majority of the canal segments appeared to be covered by tree

canopy, which may significantly decrease water temperature during the high

- temperature

summer season. Another interesting observation during the field survey was that the DO

concentration was lower in the early morning, when the water temperature was relatively low,

and became higher when the water temperature increased around noon. It appears that night

time DO consumption resulted from the respiration of benthic communities, including benthic

algae and benthic bacteria, and the root systems of aquatic vegetation may contribute to low

DO in the system, while during the daytime, benthic photosynthesis overcompensated the DO

consumption by the same communities and caused DO concentrations to increase, even when

the temperature was higher. Of course, this was based on a one

- time field observation and

therefore should only be considered as a hypothesis. We suggest that more studies be

conducted for Smith Canal to better understand the factors that control DO concentration in the

system. T his TMDL address es the TP loadings coming from anthropogenic sources. Any

remaining low DO concentrations measured after the TP loading target is achieved can be

considered a natural condition.

Seminole County Comment 6:

3. The impact of the newly constructed Regional Stormwater Facility (RSF) on Smith

Canal.

 T he facility was constructed in 2009 as an online RSF designed to provide treatment

for the entire Smith Canal Watershed and significantly alters the watershed hydraulic

and water quality conditions of Smith Canal. The site will also include wetland

re storation and storm event sampling to calculate stormwater treatment efficiency of

the facility.

 O ne of Seminole County’s existing sampling sites is located downstream of the

proposed RSF and wetlands and since the construction of the RSF no longer

repr esents the same site conditions as it which could have been influenced by

wetlands both on and upstream of the RSF.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 291

Florida Department of Environmental Protection Response:

The data used to develop the Smith Canal DO TMDL were collected before 2009. The RSF

should not play any role in causing the observed low DO concentration in Smith Canal before

the facility was constructed.

Thank you very much for raising these good questions! We appreciate the opportunity to

discuss these questions with people like you who are knowledgeable about these waters. We

are looking forward to continuing to work with y ou on TMDL development and implementation.

We do intend to work very closely with you and other local government s and stakeholders when

we are ready to discuss the priorities for non

- Consent Decree waters that were verified by the

s tate.

Sincerely,

Jan Mandrup

- Poulsen, Administrator

Watershed Evaluation and TMDL Section

Florida Department of Environmental Protection

ec: Chris Ferraro/DEPFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 292

Florida Department of Environmental Protection 

## Appendix F : Response from the Department to FDOT Comments fro m on the DO

and Nutrient TMDLs for the Main Stem of the Middle St. Johns River

August 18, 2009

Mr. Joshua Boan

Environmental Process/Natural Sciences Manager

Environmental Research Administrator

605 Suwannee Street

, MS 37

Tallahassee , FL 32399

Re: FDOT Comments on Newly Released Draft TMDLs

Dear Mr. Boan :

The Department appreciates the time and effort you and your staff put into reviewing these draft

TMDLs. We have made necessary edits to some draft TMDL reports as a result of your

comments. Because of your efforts, the se final TMDL s will be improved. To aid you in

reviewing our responses, we have included your comment s , followed by a response to each (in

blue), in the order in which they were presented.

Please contact me at Jan.Mandrup

- Poulsen@dep.state.fl.us , if you have any further questions.

Sincerely,

Jan Mandrup

- Poulsen, Administrator

Watershed Evaluation and TMDL Section

Florida Department of Environmental Protection

ec: Marjori e Bixby/FDOT

John AbendrothFINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 293

Florida Department of Environmental Protection DISTRICT 5 COMMENTS

GENERAL COMMENTS

The following comments relate to multiple TMDLs where specific comments are provided below

for each of the TMDL documents.

1. The figures that show the WBIDs and also identify the "FDOT Local Roads" are not an

accurate depiction of the roadways that FDOT is responsible for. Please isolate out those

roads that are part of FDOTs responsibility from those controlled by the Cities and Counties.

Response:

Please specify which figures in the TMDL reports that include the aforementioned WBIDs

have the “FDOT Local Roads”? This term does not seem to appear in any of the figures in

the TMDL report. However, if we learn of such an instance, a footnote will be added to all

such figures to note that the roads are for illustration purposes only and are not meant to be

an accurate depiction of roadways for which FDOT is responsible.

The load reductions determined for the non

- point sources, which include the WLA for the

stormwater (under the MS4 permit) and the LA, have not been allocated but simply applied

evenly between the WLA for Stormwater and the LA. Sufficient studies have not have not been

presented or have not been completed to determine if an even distribution of the load reductions

is ju stified, therefore some language acknowledging this (within the TMDL and ultimately within

the Rule) should be put into both the TMDL documents and ultimately the rules to allow the

ability to finalize (and therefore change the assigned reductions) under t he BMAP. [WBIDS

2964A, 2964, 2893F, 2893E, 2893D, 2893C and 2962]

Response:

In 2001, the Department submitted to the Governor and Legislature a document outlining

the intended process for the allocation of loads under the TMDL Program. One key

provisio n of the proposal was to level the “playing field,” such that once stakeholders ha ve

the opportunity to meet and discuss what steps need to be taken and to get appropriate

credit for those initiatives already completed, the specific allocations will be set by the

agreements reached under the Basin Management Action Plan (BMAP). This process has

been successfully used in several adopted BMAPs and has demonstrated the flexibility that

remains after setting the initial reductions for stormwater

- related allocations (LA and WLA

sw 

### )

at identical levels.

The laws of Florida form the underlying basis for the initial equal allocations. In particular,

Paragraph 403.067(6)(b)

, Florida Statutes, states in part that:

“Allocations may also be made to individual basins and sources or as a whole to all basins

and sources or categories of sources of inflow to the water body or water body segments.

An initial allocation of allowable pollutant loads among point and nonpoint sources may be

developed as part of the total maximum daily load. However, in such cases, the detailed

allocation to specific point sources and specific categories of nonpoint sources shall be

established in the basin management action plan...”

Additionally, each of the draft TMDL reports contains the fol lowing language in the NPDES

Stormwater Discharges section in C hapter 6 to address the issue of allocation between the

WLA for stormwater and the LA portions of the TMDL.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 294

Florida Department of Environmental Protection “It should be noted that any MS4 permittee is only responsible for reducing the

anth ropogenic loads associated with stormwater outfalls that it owns or otherwise has

responsible control over, and it is not responsible for reducing other nonpoint source loads

in its jurisdiction.”

SPECIFIC COMMENTS

The following are specific comments that relate to the individual TMDL documents reviewed.

MIDDLE ST. JOHNS RIVER BASIN

Smith Canal (WBID 2962) DO

1. The modeling doesn't break out highways as a class but takes the 100 or so classes

(FLUCCS) and combines them into 13 major classes, based largely on similarity of

hydrologic response. Breakdown by basin, land use, etc. isn't presented. Are these types of

more detailed land use/ land cover available? If so, have the loads for these land use/land

cover breakdowns been computed? This information would be valuable to better assess

allocation during BMAP process.

Responses:

It is correct that the HSPF Model takes the more than 100 FLUCCS land uses and combines

them into 13 major classes based on the similarities of hydrologic response and pollutant

dyna mics. The aggregation was conducted to improve the efficiency of model setup, reduce

the model simulation time, and make pollutant load estimation more efficient. The sub

- basin

specific land use and nonpoint source load estimates were not provided in the TMDL report

because the report focused on the total pollutant loads that the impaired waters receive from

the entire basin

, instead of the detailed allocation of nonpoint source load s to the sub

basins. In addition, load allocation during the BMAP stage may be based on jurisdiction al

boundaries instead of hydrologic boundaries. Providing sub

- basin specific loads may not be

totally useful for the final allocation. However, if the FDOT needs the information, we would

be glad to provide the results.

2. It is not clear how the HSPF modeling was performed and the results processed to

determine if the target TN and TP concentration for the WBIDs was achieved and how the

associated loads were calculated. There is no mention of whether the in

- stream kinetics was

c onsidered. Were these considered?

Response:

We will take FDOT’s suggestions to put into the TMDL report more information on how the

HSPF Model deal s with the in

- stream processes of TP and nitrogen. Basically, the HSPF

Model simulates the phosphorus and nitrogen dynamics in receiving waters using a

RCHRES module. This module receives watershed loadings simulated by PERLND

(loading from pervious watershed areas) and IMPLND (loading from impervious areas)

modules and simulates the following:

**•** Sedimentation ;

**•** Resuspension ;

**•** Sediment release ;

**•** Uptake by algae, which turns inorganic nutrients into the organic form ;FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 295

Florida Department of Environmental Protection **•** The d eath and decay of algal cells, which turn s organic nutrients back to inorganic

forms ;

**•** Nitrification , which turns ammonia into nitrate ;

**•** Deni trification , which turns nitrate into nitrogen gas and causes the nitrogen to be lost to

the atmosphere ;

**•** Atmospheric deposition directly onto the surface of the receiving water ; and

**•** The o utput of nutrients into the downstream segments.

In addition, the impacts of light availability, temperature, and flow velocity on the growth and

death of algae, which significantly influence nutrient dynamics in the receiving water, are

also considered in the RCHRES mod ule . More detailed descriptions of nutrient kinet ics in

receiving waters handled by the HSPF M odel can be obtained from the following :

Bicknell, B.R., J.C. Imhoff, J.L. Kittle Jr., T.H. Jobes, and A.S. Donigian, Jr. 2004.

Hydrological Simulation Program

– Fortran (HSPF): User’s manual for Release 12. U. S.

E nvironmental Protection Agency, National Exposure Research Laboratory, Athens, GA, in

cooperation with the U.S. Geological Survey, Water Resources Division, Reston, VA.

Lake Harney, St. Johns River Downstream of Lake Harney, St. Johns River above Lake

Jesup , St. Johns River above Lake Monroe, Lake Monroe, St. Johns River above Wekiva

River (WBIDS 2964A, 2964, 2893F, 2893E, 2893D and 2893C): DO/Nutrients

1. The modeling doesn't break out highways as a class but takes the 100 or so classes

(FLUCCS) and combines them into 13 major classes, based largely on similarity of

hydrologic response. Breakdown by basin, land use, etc. isn't presented. Are these types of

more detailed land use/ land cover breakdowns available? If so, have the loads for these

la nd use/land cover breakdowns been computed? This information would be valuable to

better assess allocation during BMAP process. 2. It is not clear how the HSPF modeling was

performed and the results processed to determine if the target TN and TP concentrat ion for

the WBIDs was achieved and how the associated loads were calculated. There is no

mention of whether the in

- stream kinetics was considered nor was there any indication that

receiving water assimilation was evaluated. Were these considered? If there is no

information or analysis of these instream/lake processes, the approach used may be overly

conservative for determining the required load reductions in the upland areas and tributaries

to meet the target concentrations of 1.18 mg/l TN and 0.07 mg/l TP

.

Response:

It is correct that the HSPF Model takes the more than 100 FLUCCS land uses and combines

them into 13 major classes based on the similarities of hydrologic response and pollutant

dynamics. The aggregation was conducted to improve the efficiency of model setup, reduce

the model simulation time, and more efficiently estimate pollutant load s . The sub

- basin

specific land use and nonpoint source load estimates were not provided in the TMDL report

because the report focused on the total pollutant l oads that the impaired waters receive from

the entire basin

, instead of the detailed allocation of nonpoint source load s to the sub

basins. In addition, load allocation during the BMAP stage may be based on jurisdiction al

boundaries instead of hydrologic boundaries. Providing sub

- basin specific loads may not be

useful for the final allocation. However, if the FDOT needs the information, we would be

glad to provide the results.FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID

2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, De cember 2009



### 296

Florida Department of Environmental Protection We will use FDOT’s suggestions to add to the TMDL report more information on how the

HSPF M odel deal s with the in

- stream processes of TP and nitrogen. Basically, the HSPF

M odel simulates the phosphorus and nitrogen dynamics in receiving waters using a

RCHRES module. This module receives watershed loadings simulated by PERLND

(loa ding from pervious watershed areas) and IMPLND (loading from impervious areas)

modules and simulates the following:

**•** Sedimentation ;

**•** Resuspension ;

**•** Sediment release ;

**•** Uptake by algae, which turns inorganic nutrients into the organic form ;

**•** The death and de cay of algal cells, which turn s organic nutrients back to inorganic

forms ;

**•** Nitrification, which turns ammonia into nitrate ;

**•** Denitrification, which turns nitrate into nitrogen gas and causes the nitrogen to be lost to

the atmosphere ;

**•** Atmospheric depositio n directly onto the surface of the receiving water ; and

**•** The output of nutrients into the downstream segments.

In addition, the impacts of light availability, temperature, and flow velocity on the growth and

death of algae, which significantly influence nutrient dynamics in the receiving water, are

also considered in the RCHRES mod ule . More detailed descriptions of nutrient kinetics in

receiving waters handled by HSPF model can be obtained from the following :

Bicknell, B.R., J.C. Imhoff, J.L. Kittle Jr ., T.H. Jobes, and A.S. Donigian, Jr. 2004.

Hydrological Simulation Program

– FORTRAN (HSPF): User’s manual for Release 12. U.S.

E nvironmental Protection Agency, National Exposure Research Laboratory, Athens, GA, in

cooperation with the U.S. Geological Surv ey, Water Resources Division, Reston, VA.

### Florida Department of Environmental Protection

Division of Water Resource Management

Bureau of Watershed Management

2600 Blair Stone Road, Mail Station 3565

Tallahassee, Florida 32399

- 2400