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 2964A) 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 loads (TMDLs) 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 waterbody identification 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 Administrative 

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 403.067, 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, the 

target nutrient concentrations established for the two lakes (Lake Harney and Lake Monroe) were applied

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

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

be 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) values 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 impacts, based on paleolimnological studies; and (3) determining the 

recommended 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 

medians of the recommended nutrient values obtained from these 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 dynamics. 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, loadings 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 for 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 uses) from the watersheds immediately adjacent 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 segments 

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, December 2009

Florida Department of Environmental Protection

iii

Acknowledgments

This TMDL report was developed based on the Hydrologic Simulation Program–Fortran (HSPF) 

Model created by the St. Johns River Water Management District (SJRWMD). We deeply 

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-Williams (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]). Her effective contract 

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

other BCI staff) created large amounts 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 thank 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.state.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 Section

2600 Blair Stone Road, Mail Station 3555

Tallahassee, FL 32399-2400

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

Phone: (850) 245–8464

Fax: (850) 245–8434
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

iv

Table of Contents 

Chapter 1: INTRODUCTION ____________________________________________ 1

1.1 Purpose of Report ____________________________________________ 1

1.2 Identification 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 Applicable 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 Attenuation of Pollutant Loads by BMPs __________________73
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

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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

Chapter 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 Action 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 UCI File from the SJRWMD ________________ 117

Appendix C: HSPF Model Land Use Classification versus FLUCCS 

Code _____________________________________________________ 275

Appendix D: Response from the 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 _______________________________________________ 292
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

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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 Chla 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 Period 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 Distribution of Chla 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. Statistical 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. Summary 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, December 2009

Florida Department of Environmental Protection

vii

Table 3.6. Target Nutrient and Achievable Chla 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 Served 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 Their 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 Impaired 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. 

Johns 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, December 2009

Florida Department of Environmental Protection

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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, December 2009

Florida Department of Environmental Protection

ix

List of Figures

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 Area _______________3

Figure 1.2. Major Tributaries that Discharge into the Impaired Middle 

St. Johns River Segments___________________________________ 4

Figures 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. Chla 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. Chla and DO Concentrations of Lake Monroe (WBID 2893D) _____21

Figures 2.5c, d. TN and TP Concentrations of Lake Monroe (WBID 2893D) _______22

Figures 2.6a, b. Chla 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 Chla 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 Chla 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, December 2009

Florida Department of Environmental Protection

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Figure 3.2. Functional Relationship between Chla 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 

Segments 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 Impaired 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 Calibration________________________________________ 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, December 2009

Florida Department of Environmental Protection

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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, December 2009

Florida Department of Environmental Protection

xii

Websites

Florida Department of Environmental Protection, 

Bureau of Watershed Management

Total Maximum Daily Loads 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/shared/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, December 2009

Florida Department of Environmental Protection

1

Chapter 1: INTRODUCTION

1.1 Purpose of Report

This report presents the nutrient and dissolved oxygen (DO) Total Maximum Daily Loads 

(TMDLs) 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, as well as Lakes Harney and Monroe. These waters were verified as 

impaired for nutrients and low dissolved oxygen (DO) due to elevated chlorophyll a (chla) and 

depressed DO concentrations, as verified through water quality assessments. They 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 TMDLs is to establish the allowable loadings of nutrients 

to the Middle St. Johns River segments that would restore these waterbodies such that they 

meet their applicable water quality criteria 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 confluence of the St. Johns River 

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

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

The river segments receive discharges 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 lesser extent, Marion and Brevard 

Counties. 

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

Middle St. Johns main stem. Interstate 4 (I-4) runs in a south-north direction across the outlet of 

Lake Monroe, and State Road 46 (SR-46) runs along the southern shorelines of Lake Monroe 

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

Lake Monroe, which are located immediately south of Lake Monroe, and the cities of Deltona, 

DeBary, and Enterprise, which are located north of Lake Monroe. 

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

contributing 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 developed by the 

St. Johns River Water Management District (SJRWMD) (2002), the Lake 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 there 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 

municipalities of Longwood, Winter Springs, Oviedo, Casselberry, Maitland, Eatonville, Winter 
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

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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 people living in the 

vicinity of Lake Jesup. Effective 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 shows 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 waterbody identification (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 

these 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. Johns 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

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

1.3 Background

This 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 rotates 

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, December 2009

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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 Area
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Figure 1.2. Major Tributaries that Discharge into the Impaired 

Middle St. Johns River Segments
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2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, December 2009

Florida Department of Environmental Protection

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Chapter 2: DESCRIPTION OF WATER QUALITY 

PROBLEM

2.1 Statutory Requirements and Rulemaking 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 

impaired 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], Florida 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 methodology 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 Impaired Waterbody Segments 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 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

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

Florida Department of Environmental Protection

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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 impairments): 

• 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, the annual average chla concentration in 2001, 2002, and 

2007 exceeded the threshold of 20 micrograms per liter (μg/L) defined in the IWR 

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

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

to 2004. Phytoplankton communities in this 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 period.

• St. Johns River above Wekiva River (WBID 2893C). For this segment, the 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 μg/L threshold. 

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

assessment did not show sufficient evidence that the earlier determination of 

impairment should be reversed. Therefore, the WBID was considered still 

impaired for nutrients 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 IWR requires that if the 

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

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

threshold. If the mean color is higher than 40 PCUs, the annual average TSI of 60 

should be used as the assessment threshold. The annual mean color of Lake 

Monroe is typically higher than 100 PCUs. 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, 
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2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, December 2009

Florida Department of Environmental Protection

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produced due to the excessive nutrient input into the lake. Therefore, Lake 

Monroe was verified by the Department as impaired for nutrients, 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 PCUs, a TSI of 60 was used as the assessment threshold for Lake 

Harney. During the Cycle 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 historical 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 20th 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 more recent years of the verified period. 

Table 2.2. Summary of Annual Average Chla 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 chla concentration.

Year1

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 NA2 30.4

2000 NA2 29.3

2001 40.6 NA2

2002 67.8 NA2

2003 8.1 NA2

2004 7.8 NA2

2005 10.2 NA2

2006 15.6 NA2

2007 28.1 17.6
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, December 2009

Florida Department of Environmental Protection

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2.2.2 Dissolved Oxygen

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) 

were also verified impaired for low DO, based on the observations 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 

milligrams 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. 

Tables 2.3a through 2.3f list the data used for verifying the DO impairment, and Table 2.4 lists 

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

these pollutants are considered causative pollutants for the observed low DO concentrations. 

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

for Lake Harney (WBID 2964A)

Parameter

Summary of 

Observations

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: Impaired
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2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, December 2009

Florida Department of Environmental Protection

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

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

Parameter

Summary of 

Observations

Total number of samples 52

IWR-required number of exceedances for the Verified List 9 

Number of observed exceedances 15

Number of observed nonexceedances 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 2.3c. Summary of DO Monitoring Data in the Verified Period 

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

Parameter

Summary of 

Observations

Total number of samples 155

IWR-required number of exceedances for the Verified List 21

Number of observed exceedances 30

Number of observed nonexceedances 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 observations (mg/L) 1.35

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

Possible causative pollutant by IWR BOD

FINAL ASSESSMENT: Impaired
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

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

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

Parameter

Summary of 

Observations

Total number of samples 126

IWR-required number of exceedances for the Verified List 18

Number of observed exceedances 29

Number of observed nonexceedances 97

Number of seasons during which samples were collected 4 

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

for Lake Monroe (WBID 2893D)

Parameter

Summary of 

Observations

Total number of samples 201

IWR-required number of exceedances for the Verified List 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: Impaired
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

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

River above Wekiva River (WBID 2893C)

Parameter

Summary of 

Observations

Total number of samples 119

IWR-required number of exceedances for the Verified List 17

Number of observed exceedances 26

Number of observed nonexceedances 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 DO 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 in the Impaired

Waterbodies

The long-term seasonal variation of chla (all chla 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. Figures 2.1A to

2.1D, 2.2A to 2.2D, 2.3A to 2.3D, 2.4A to 2.4D, 2.5A to 2.5D, and 2.6A to 2.6D show the longterm seasonal trends of these parameters in the six impaired Middle St. Johns River segments

addressed in this report. 

Overall, peak chla 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 high 

temperatures (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 suggests that humic materials 
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Florida Department of Environmental Protection

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from natural sources might also play an important role in causing the observed low DO 

concentrations.

There was 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 chla concentrations were lower than 20 μg/L (the chla threshold used by the 

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

were mostly observed from May to September. Overall monthly average chla 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 chla

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

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Figures 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

Year

Chla 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

Year

DO 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

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Figures 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

Year

TN 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

Year

TP 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

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Figures 2.2A, B. Chla 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

Year

DO 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

Year

Chla 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

Figures 2.2C, D. TN and 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

Year

TN 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

Year

TP 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

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Figures 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

Year

Chla 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

Year

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, December 2009

Florida Department of Environmental Protection

18

Figures 2.3C, D. TN and TP Concentrations of St. Johns River above Lake Jesup (WBID 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

Year

TN 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

Year

TP 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

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Figures 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

Year

Chla 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

Year

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, December 2009

Florida Department of Environmental Protection

20

Figures 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

Year

TN 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

Year

TP 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

Figures 2.5A, B. Chla and DO Concentrations of Lake 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

Year

Chla 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

Year

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, December 2009

Florida Department of Environmental Protection

22

Figures 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

Year

TN 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

Year

TP 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

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Figures 2.6A, B. Chla 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

Year

Chla 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

Year

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, December 2009

Florida Department of Environmental Protection

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Figures 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

Year

TN 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

Year

TP 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

25

A spatial trend in chla was observed along these river segments (Table 2.5a; Figure 2.7a). For 

the three segments upstream of Lake Jesup (WBIDs 2964A, 2964, and 2893F), the 75th

percentiles of the monthly average chla concentrations were about 9.2, 10.0, and 10.0 

μg/L, respectively, while median monthly average chla concentrations were 4.2, 3.4 and 

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

2893E, 2893D, and 2893C) had significantly higher chla concentrations than the 3 upstream

WBIDs. The 75th percentile monthly average chla concentrations for WBIDs 2893E, 2893D, and 

2893C were 22.9, 29.0, and 25.2 μg/L, respectively, and the median monthly average chla

concentrations were 7.5, 11.8, and 12.2 μg/L, respectively. These spatial trends suggest a 

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

In contrast to the monthly average chla concentration, no obvious upstream-downstream spatial 

trend was observed for DO concentrations (Table 2.5b; Figure 2.7b). The 25th, 50th, and 75th

percentiles 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 25th, 50th, and 75th percentiles 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 chla concentrations differed significantly between river segments 

upstream and downstream of the Lake Jesup outlet, but that the distribution of DO 

concentrations did not show a significant difference, suggests that even if the nutrient condition 

in these segments influences DO concentrations at all, the influence may be relatively minor.

The upstream and downstream trends of TN and TP were not significant (Tables 2.5c and 2.5d;

Figures 2.7c and 2.7c). For TN, the 25th, 50th, and 75th 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 25th, 50th, and 75th 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 distribution showed a similar pattern. The 25th, 50th, and 75th 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 WBID 

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 25th, 50th, and 75th percentiles of monthly 

average concentrations were 0.07, 0.09, and 0.12 mg/L, respectively, for 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, December 2009

Florida Department of Environmental Protection

26

Table 2.5a. Statistical Distribution of Chla 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 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

Moments 

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% Mean 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 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, December 2009

Florida Department of Environmental Protection

27

Table 2.5b. Statistical Distribution of DO 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 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% Quartile 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 80 139 136 121 108
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

28

Table 2.5c. Statistical Distribution of TN Concentrations in the Impaired Middle St. 

Johns Segments

Quantiles

Percentile Quantile

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 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, December 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 81 140 139 136 106

 
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

30

Figure 2.7a. Distribution of Monthly Average Chla Concentrations in the Impaired Middle St. Johns River Segments

WBID

2964 WBID

2893F

WBID

2893E

WBID

2893D

WBID

2893C

WBID

2964A
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

31

Figure 2.7b. Distribution of Monthly Average DO Concentrations in the Impaired Middle St. Johns River Segments

WBID

2964

WBID

2893F

WBID

2893E

WBID

2893D

WBID

2893C

WBID

2964A
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

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

2964A
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

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

2964A
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

34

In summary, chla concentration is the parameter that differs significantly between segments 

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

large difference between Lake Jesup chla concentration and chla 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 discusses in detail the relationship between DO and 

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

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

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

could also be an important factor influencing DO.

Chla and TP concentrations showed relatively similar seasonal patterns, peaking in the middle 

of each year and gradually decreasing toward the end of each year. In contrast, low DO 

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

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

extent, the influence of nutrients, the low DO concentrations observed later in the year may 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 chla and DO, higher nutrient inputs 

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

Controlling 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 chla and low DO conditions. 
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

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 five 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, wellbalanced population of fish and wildlife

Class IV Agricultural 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 Numeric 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 aquatic 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 chla 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 chla, TN, and TP concentrations—is used in the IWR. 

The value of the TSI threshold 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 PCUs, an annual average TSI of 

40 units should be used as the threshold, above which the lake is considered impaired for 

nutrients. 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 IWR (Rule 62-303, F.A.C.). 

The IWR also allows the use of information other than chla 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 distribution (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 impairments for 

lakes based on annual average TSI levels and on annual average chla 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 statewide 
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

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 chla 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 chla concentration (algal biomass), discussions of nutrient target development 

primarily focused on the functional relationship between chla and nutrient concentrations. 

Therefore, although two of the three 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 waters can still be linked to nutrients, which also influence chla

concentrations. 

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 chla and nutrient concentrations different in river 

segments upstream and downstream of the Lake Jesup outlet? 

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

difference in the chla-nutrient relationship? Are different nutrient targets 

warranted for the upstream and downstream segments?

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

1. Are the relationships between chla and nutrient concentrations different in river 

segments upstream and downstream of the Lake Jesup outlet? 

This question was triggered by the upstream and downstream spatial patterns 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 segments (WBIDs 2893E, 2893D, and 2893C). However, chla 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 support 

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

relationship between chla and nutrient concentrations upstream and downstream of the Lake 

Jesup outlet must be different. 

To demonstrate that this is the case, chla (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 chla concentrations 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 condition in ambient waters be conducted based on annual 

average chla concentration or annual average TSI, the functional relationship analyses were 

conducted by regressing the annual average chla in each analysis unit against the annual 

average TN and TP concentrations 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, December 2009

Florida Department of Environmental Protection

37

To ensure that all the data included in the analysis were representative of the typical chlanutrient 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 this year, 

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

the outlet of Lake Monroe showed reverse flow from downstream to upstream—likely due to the 

large-scale, wind-driven 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 higher percentage of reverse flow 

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

therefore 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 shows the relationship between annual average chla and TP concentrations in the

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

average chla concentrations and TN concentrations in the upstream and downstream analysis 

units. 

Significant functional relationships were identified between chla concentrations 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 chla concentrations than the upstream segments. In 

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

variation in chla concentrations in the downstream segments than in the upstream segments, 

indicating that the functional relationship between chla and nutrient concentrations differs 

between these upstream and downstream segments. Another observation from Figures 3.1

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

concentrations in the upstream and downstream segments decreases as nutrient 

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

difference in the achievable chla 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 chla-nutrient relationship? Are different nutrient targets warranted for the 

upstream and downstream segments?

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

are different. For example, the different morphology of waterbodies can influence the chlanutrient relationship. Assuming the same volume, a deeper river/lake with a smaller 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 smaller 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, December 2009

Florida Department of Environmental Protection

38

Figure 3.1. Functional Relationship between Chla and TP Concentrations in River 

Segments Upstream and Downstream of the Lake Jesup Outlet

Figure 3.2. Functional Relationship between Chla and TN Concentrations in River 

Segments Upstream and Downstream of the Lake Jesup Confluence

y = 517.9x1.655

R2 = 0.416

y = 2135.x2.052

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 0.16

Chla Concentration (μg/L)

TP Concentration (mg/L)

Upstream

Downstream

Correlation Curve (Upstream)

Correlation Curve (Downstream)

y = 3.532x2.318

R2 = 0.463

y = 6.453x2.045

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 3.00

Chla 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, December 2009

Florida Department of Environmental Protection

39

Waterbody volume may also influence the chla-nutrient relationship. Assuming that the total 

flow between the upstream and downstream segments does not differ by much, segments with 

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

Therefore, with the same amount of nutrients, segments with a shorter water residence 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 color—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 

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

nutrients. High 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. 

Different nutrient compositions may also influence algal productivity. If the percentage of 

inorganic nutrients in the total nutrients is high, or if a higher percentage of the organic portion of 

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

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

organic fraction of the total nutrient is relatively recalcitrant.

Another factor that may influence the chla-nutrient relationship in a given waterbody is if it

receives algal biomass produced by another water system with a different chla-nutrient 

relationship, due to some or all of the factors discussed above. The final chla-nutrient 

relationship in the waterbody in question is the mixing result of the two different chla-nutrient 

relationships and therefore differs from the original chla-nutrient relationship in the target 

waterbody.

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

system typically produces less algal biomass than a lacustrine system because the latter has a 

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

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

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

Harney with Lake Monroe. Table 3.1 lists some major 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 areas and long-term average water residence times of 

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

for Lake Monroe (based on flow records from 1995 through 2006) was 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 two to three times 

more algal biomass with the same amount of nutrients. 

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

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

In fact, the mean Secchi depth of Lake Harney was even higher than that of Lake Monroe, 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 chla-nutrient relationships in these two 

waters.
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Table 3.1. Comparison of Characteristics of 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 μS = 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) 

Representing 

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 Area1

(square miles) 2,070 NA10 2,624 NA10

Surface Area 

(acres)2 7,935 NA10 8,814 NA10

Mean Depth (feet)2 7 NA10 6 NA10

Maximum Depth 

(feet)2 15 NA10 16 NA10

Water Residence 

Time (days)1 15 NA9 23 NA10

Flow (30-day mean, 

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

Secchi (feet) 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 (0C) 23.97 5.11 23.61 5.11

Specific Conductivity 

(μS)

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

Chla Corrected 

(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 causing the observed difference in chla-nutrient relationships in these waters.

Based on the above data, it appears that the most likely cause for the higher chla-nutrient ratio 

observed in the downstream segments is that these segments receive the chla 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 average water residence time for Lake Jesup is 

about 3 months (Keesecker, 1992). Thus phytoplankton have a longer time to respond to the 
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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 longterm average color level of Lake Jesup for 1996 through 2007 was less than 90 PCUs, 

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

supports more algal growth with the same nutrient availability. In fact, the long-term average 

chla-to-TP and chla-to-TN ratios for Lake Jesup, based on data from 1996 through 2007, were 

about 23 and 424, respectively, while the long-term average chla-to-TP and chla-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 chla-to-TN and chla-to-TP ratios were closer to the Lake Jesup ratios than the 

upstream ratios.

If the downstream segments receive the Lake Jesup chla output, as well as outputs of TN and 

TP, why is the downstream chla 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 chla

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

TP concentrations between Lake Jesup and the upstream segments. For Lake Jesup, the longterm (1996–2007) average annual chla, TN, and TP concentrations were about 66.5 μg/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 chla, TN, and TP concentrations 

were about 9.9 μg/L, 1.54 mg/L, and 0.09 mg/L, respectively. While the long-term annual 

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

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

by factors of about 1.9 and 1.8, respectively. This may have caused the higher chla

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 with measurements from the gaging 

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

USGS Website (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. This ratio was then used to calculate 

chla, TN, and TP concentrations in the downstream segments based on the long-term average 

annual chla, TN, and TP concentrations of both the Lake Jesup and upstream river segments. 

If the calculated downstream chla, TN, and TP concentrations generally match up with the 

measured downstream concentrations, the observed higher chla 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 two 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) happens episodically, depending on the regional rainfall pattern. Because Lake Jesup 

does not contribute chla, 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.
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Table 3.2. Ratio of Lake Jesup Outflow to the Main Stem Flow of the St. Johns 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-ft/yr)1

St. Johns River 

Main Stem Flow

(ac-ft/yr)1

Ratio 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 2,276,356 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 River was about 10 percent. Using the long-term average annual 

chla, 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 chla, TN, and TP 

concentrations were 15.5 μg/L, 1.68 mg/L, and 0.096 mg/L, respectively. The long-term 

average annual chla, TN, and TP concentrations based on measured data (1996–2007) in the 

segment immediately downstream of Lake Jesup were 16.4 μg/L, 1.75 mg/L, and 0.095 mg/L, 

respectively. Thus the estimated downstream chla, TN, and TP concentrations matched the 

long-term average annual chla, TN, and TP concentrations calculated on the basis of measured 

data. These results suggest that the assumption that the observed downstream higher chla 

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 appears reasonable. However, because the 

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

significantly longer water residence time than the downstream river segments, the chla-nutrient 

relationships between the upstream and downstream segments are different. The chla-tonutrient ratios for the downstream segments are higher than those of the upstream 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, December 2009

Florida Department of Environmental Protection

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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
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This 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 of the Lake 

Jesup outlet, achievable chla concentrations could be different for the upstream and 

downstream segments, with the downstream achievable chla concentration being relatively 

higher than the upstream achievable chla 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 channels. However, data and 

information were available that allowed 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 lakes, 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 impacts of nutrients than lakes. Therefore, nutrient targets sufficient to 

protect lakes should be sufficient to protect these 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. Achievable chla 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 general goal of using these 

methods was, first, to ensure that nutrient concentrations in these waters were generally below 

the upper limit of mesotrophic condition but not below the pristine natural background condition. 

One method used was to ensure that the TSI values calculated on the basis of target TN and 

TP concentrations were 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 PCUs. 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 PCUs, respectively, which were both higher than the threshold of 40 PCUs. 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 conditions 

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 impaired for nutrients based on the TSI because the 

annual chla TSI was low for the lake during most of the verified period. Therefore, the overall 

TSI value, which is the mean value between the chla TSI and nutrient TSI, was below 60. 

For Lake Monroe, although the annual average chla TSI in 2001 exceeded 60, the annual 

average chla TSIs in the most recent years from 2002 through 2007 were all sufficiently low to 
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

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bring the overall TSI values for the lake lower than 60. Therefore, the lake was not verified for 

nutrient impairment. 

However, the fact that TN and TP TSIs in both lakes were higher than 60 indicates that these 

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 chla-nutrient functional 

relationships in these systems. Should the color of the system decrease and water residence 

time increase (e.g., under drought conditions), or if excessive amounts of nitrogen and 

phosphorus are carried downstream into waterbodies with low color and a relatively high water 

residence time, higher chla concentrations 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 this 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 concentrations under the 

predevelopment or low-impact condition during the early stages of development in a watershed. 

Paleolimnological studies were conducted by Anderson et al. (2004, 2006) for both Lake Harney 

and Lake Monroe using a lead isotope (210Pb) to estimate the general time frame when lake 

sediments of a certain depth were formed. The nutrient contents of the sediment at different 

depths were then measured, allowing the nutrient accumulation rate in the sediment during a 

certain period to be estimated. 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 conditions 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 developing 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 210Pb and carbon 14 (14C) radiometric technologies. 

Information on 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.

These 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 come from phytoplankton, were on top of all the sediment cores, and were 

deposited over the last 100 years or so. The radiometric technologies demonstrated that the 

accumulation of fine-grained material (gyttja) in the lake did not start until the 1900s, coinciding

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 productivity, 

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 1970 from each sediment core were used to represent the lowimpact condition. The nutrient accumulation rates for the latest period, mostly in the 1990s, 

were used to represent the existing condition. The results from the sediment core collected 

from Site LM45-03 during the study were not used in this TMDL analysis because the core only 
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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 was any increasing trend in accumulation rate at the 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. The 

target 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 conditions listed in Table 3.3, the estimated target TP 

concentration for the low-impact condition was about 0.06 mg/L.

Table 3.3. TP Sediment Accumulation Rate for Low-Impact and Existing Conditions 

1 μg/cm2

/yr = Micrograms per square centimeter per year

- = Empty cell/no data

Sediment Core ID

Low-Impact 

Condition (1920s 

through 1960s)– 

Year

Low-Impact 

Condition (1920s 

through 1960s)– 

Accumulation Rate

(μg/cm2/yr)1

Existing Condition 

(1990s)– 

Year

Existing Condition 

(1990s)– 

Accumulation Rate 

(μg/cm2/yr)1

LM06-03 1933 3.6 1995 7.4

LM28-03 1922 7 1998 37

LM28-03 1960 17 1998 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 preceding text, because of the possible interference 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.
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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 20th 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 these 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 chla 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

R2

 = 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)
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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 TP target concentrations

in Paul and Gerritsen’s 2002 studies. These included the reference lake technique, sediment 

diatom reconstructions, morphoedaphic indices, LOESS regression of the trophic Lake 

Condition Index (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 Phosphorus/Nitrogen Concentrations (μg/L) Suggested as 

Potential Criteria for Five Different Lake Classes in Florida

- = Empty cell/no data

* = N < 6

**NA = Not applicable

Lake Class

Methodological 

Approach Using 75th

Percentile of Reference 

Distribution

Methodological 

Approach Using LOESS 

Regression

(tLCI versus nutrients)

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 43/1,202 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 colors for both Lake Harney and Lake Monroe were greater than 

20 PCUs and the long-term average pHs were greater than 6.5 (Table 3.1), these lakes were

considered alkaline colored lakes. 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 results 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 these 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. They suggested that 

40 μg/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 

relied heavily on the biological response to the nutrient concentration, and many 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 was indeed associated with the regression curve between tLCI and TP concentration 

in Paul and Gerritsen’s study, significantly increasing the uncertainties of these targets. 

Therefore, 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. 
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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 ranged 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 0.068 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.

Table 3.5. Summary of Nutrient Targets

Method

TN

(mg/L)

TP

(mg/L)

Nutrient TSI Equal to 60 1.22 0.068

Paleolimnological Studies/TN-TP Correlation 1.18 0.060

75th Percentile Reference Lake Method 1.11 0.073

Final Targets: 1.18 0.068 (0.07)

Chla concentrations that could be achieved after achieving the TN and TP targets were 

estimated on the basis of the relationship between the annual average chla and annual average 

nutrient concentrations shown in Figures 3.1 and 3.2. The achievable chla concentrations for 

the upstream and downstream segments were calculated as the mean values between the 

achievable chla concentrations estimated on the basis of the chla-TP and chla-TN relationships. 

These concentrations are 5.8 μg/L for the river segments above the Lake Jesup outlet and 9.1 

μg/L for the river segments below the Lake Jesup outlet. They correspond to TSIChla of 42 and 

48, respectively, using the TSI equation by Huber et al. (1982) for Florida lakes. Achieving 

these 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 the TN, TP, 

and chla (TSI) targets for all the impaired Middle St. Johns River segments.

Table 3.6. Target Nutrient and Achievable Chla Concentrations (TSI) for Impaired 

Middle St. Johns River Segments

WBID

TN

(mg/L)

TP

(mg/L) Chla or TSI

2964A 1.18 0.07 51 (TSI) 

2964 1.18 0.07 5.8 μg/L

2893F 1.18 0.07 5.8 μg/L

2893E 1.18 0.07 9.1 μg/L

2893D 1.18 0.07 54 (TSI) 

2893C 1.18 0.07 9.1 μg/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 be 
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

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 wetlands and sandy forest lands in the immediate watershed, and also from the 

Upper St. Johns River and Econlockhatchee River. The 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. 

Bacterial activities can be significantly stimulated if nitrogen and phosphorus are added into the 

system because they provide bacteria with nutrients. The further stimulation of bacterial 

activities can be observed if labile DOCs, such as those released by algal populations, 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 labile DOCs in the 

water, so that the DO depression due to the bacterial 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 BOD concentrations were treated as the focus of the analysis. 

The possible impacts of these nutrients and organic carbon on DO levels 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 instantaneously, to analyze the DO and 

nutrient concentrations, monthly average DO and nutrient concentrations were calculated and 

correlation analyses were conducted based on monthly average DO and nutrient 

concentrations. Figure 3.5 shows DO-TP relationships for the upstream and downstream 

segments, respectively, and Figure 3.6 shows 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 correlations 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), 

considering the number of data points involved, these correlations are biologically significant. 

The 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 

concentrations. Another interesting point is that both the slopes and intercepts were very similar 
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

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Figures 3.5a, 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

R2

 = 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

R2

 = 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)
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Florida Department of Environmental Protection

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between the upstream and downstream curves, suggesting that phosphorus concentration 

influences DO concentration in both the upstream and downstream segments in similar ways. 

Examining the lower edge of the data distribution also suggests 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 correlation 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 concentrations, and it 

appears that if the monthly average TP concentration can be reduced to about 0.07 mg/L, the 

majority of DO concentrations would be higher than 5.0 mg/L. Whether 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 humic 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 nutrient 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 

analyses conducted for nutrients. However, comparing individual BOD and chla data revealed 

statistically significant correlations between these two parameters for river segments both 

upstream and downstream of the Lake Jesup outlet (Figures 3.8a and 3.8b) (p<0.05). For river 

segments downstream of the Lake Jesup outlet, the variance in chla 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 upstream segments showed a lower correlation coefficient with chla 

concentrations (R2 = 0.36). As chla concentrations in the upstream segments were significantly 

lower than in the downstream segments, the influence of humic DOC on the BOD-chla 

correlation may become significant. However, the BOD-chla 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). This indicates that the BOD concentration in the Middle St. 

Johns River is controlled by algal biomass, which, in turn, suggests 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 concentrations 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, December 2009

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Figures 3.6a, 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

R2

 = 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

R2

 = 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, December 2009

Florida Department of Environmental Protection

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Figures 3.7a, 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

R2

 = 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

R2

 = 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)
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Florida Department of Environmental Protection

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Figures 3.8a, 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

R2

 = 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

R2

 = 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

R2

 = 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, December 2009

Florida Department of Environmental Protection

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Chapter 4: ASSESSMENT OF 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, 

confined, 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, including 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 definitions, 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 watersheds 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 them are concrete batch plants (CBPs): Cemex-Orange City CBP (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 FLG110451 and FLG110324 are not located 

within the boundary of any impaired WBID, they are located within the watershed boundary of 

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

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Figure 4.1. NPDES-Permitted Facilities Located in the Watersheds Discharging to 

the Impaired Middle St. Johns River Segments
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Florida Department of Environmental Protection

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Section 4.2.2.1 discusses details 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

sources of nutrients.

Other than the CBPs, a power plant, the FPL Sanford Steam Electric Power Plant (FL0001554), 

is located near the northern 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 (Units 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: 280 50’

29”, Longitude: 

810 19’

25”), at a discharge rate of 125,028 gallons 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: 280 50’

30”, Longitude: 810 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, respectively, 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, December 2009

Florida Department of Environmental Protection

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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 long-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. Annual 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) for the HSPF Model 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 

uses 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 Stormwater Program in all areas of Florida, except for tribal lands. The 

Department’s authority to administer the NPDES Program is set forth in Section 403.0885, F.S. 
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The three major components of the NPDES stormwater regulations are as follows: 

(1) Municipal Separate Storm Sewer System (MS4) Permits 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 Activity Generic Permits 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 state 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 Rule 62-40, 

F.A.C. In 1994, state legislation created the Environmental Resource Permitting Program to 

consolidate stormwater quantity, stormwater quality, and wetlands protection into a single 

permit. Currently, the majority of Environmental Resource Permits are issued by the state’s five 

water management districts, although the Department continues to do the permitting for 

specified projects.

The NPDES Stormwater Program 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 Permitting Program on a countywide basis, which brings in all cities, Chapter 298 

urban water control districts, and the Florida Department of Transportation (FDOT) 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 central 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” requirement 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 districts with MS4 permits influenced by TMDLs in 

the Middle St. Johns River Basin. 
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Florida Department of Environmental Protection

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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 FLR04E049 Multiple

II FDOT District 5 FLR04E024 Multiple

II Brevard County FLR04E052 Brevard 

II Lake County FLR04E106 Lake

II Volusia County FLR04E033 Volusia

II City of DeBary FLR04E120 Volusia

II City of Deltona FLR04E099 Volusia

II City of Lake Helen FLR04E125 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 nonpoint 

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. In 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 residential areas where septic tanks are the major 

way to dispose of domestic wastewater, failed septic tanks elevate pollutant loadings into the 

receiving water. In both urban and agricultural areas where structural or nonstructural BMPs 

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 TMDLs for the impaired St. Johns River segments covered in this report, pollutant 

loading 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. Jia, personal communication). HSPF (Bicknell et al., 2004), developed and maintained 

by Aqua Terra and the EPA, is a comprehensive package that can be used to develop a 

combined watershed and receiving water model. It can simulate various species of nitrogen 

and phosphorus, chla, BOD, coliform bacteria, metals, and DO concentrations in receiving 

waters. 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 chla 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 examining the processes starting from rain 

precipitation, canopy intercept, storage, and evaporation; land surface depression 

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, including 
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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 evapotranspiration potential (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 flow-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. 

Sediment 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 constituent 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 Module analyzes hydrology and water quality constituent loadings in 

impervious areas of the watershed. This module only simulates the surface 

hydrology and pollutant loadings contributed 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. Buildup and wash-off algorithms are used to determine 

pollutant loadings through surface runoff. 

• 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:

- Sedimentation; 

- Resuspension; 

- Sediment release; 

- Uptake by algae (which turns inorganic nutrients into the organic form); 

- Death and decay of algal cells (which turn 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 deposition directly onto the surface of the receiving water; and 

- Output of nutrients into the downstream segments. 
FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 

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In addition, the RCHRES Model considers 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. 

More detailed descriptions of the HSPF Model 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 watersheds 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 different 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 domain 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 delineations in each major basin, and the directions of the flow 

between sub-basins. The figure also shows the WBID boundaries used by the Department for 

water quality assessment purposes. Based on Figure 4.2, the six impaired WBIDs were 

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 2893C).

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 was created primarily 

based on aerial photographs taken in 1999 and 2000. 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. Tables 4.3a 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 

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Figure 4.2. HSPF Model Basin and Sub-basin Delineations and Flow Direction
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

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Figure 4.3. Land Use Distribution in the HSPF Model Domain
FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 

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Table 4.3a. Land Use 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 Residential 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.Land 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-Density 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 Tables 4.3a and 4.3b, the watersheds that discharge 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 uses, including open land, forest, water, and wetland, occupy about 72

percent of the area. Urban land uses, including low-, medium-, and high-density residential and 
FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 

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industrial, only account for about 6 percent of the total area. In contrast, urban land uses in the 

Lake Monroe Basin comprise about 43 percent of the total area—significantly higher than the 

Lake Harney Basin. Natural land uses account for about 41 percent of the Lake Monroe Basin, 

with the remaining 15 percent occupied by agriculture, mining, pastureland, and rangeland. 

Percent impervious area of each land use category is a very important factor that controls the 

quantity and quality of the flow created from a watershed. Nonpoint pollution monitoring studies 

throughout the United 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 DCIAs were modeled as impervious 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 DCIAs: low-, medium-, 

and high-density residential, and industrial. Percent impervious areas for each land use were 

assigned based on previous modeling experience in the St. Johns River Basin and finalized 

through the hydrology calibration. Tables 4.4a and 4.4b show the percent areas that were 

considered impervious in the HSPF Model setup by the SJRWMD. 

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

Draining to WBIDs 2964, 2964A, and 2893F

Land Use

Impervious 

Land

(acres)

Pervious 

Land

(acres)

% 

Impervious

Agricultural General 0 2,524 0%

Agricultural Tree Crop 0 975 0%

Forest 0 47,905 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, December 2009

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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 

(acres)

Pervious 

Land 

(acres)

% 

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%

Pasture 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 Estimated Pollutant Loadings from Septic Tanks

Septic tanks, failed or functioning, may also contribute pollutant loadings to the receiving water. 

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 pollutant loadings from functioning 

septic tanks, when properly installed, can be removed through the physical, biological, and 

biochemical processes in the septic tanks and drain fields. However, some pollutant species, 

such as nitrate, which has high solubility in water and low absorption capability to soil particles, 

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 

Seminole 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/

ostdsstatistics.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 highdensity 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 residential 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.
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Pollutant contributions from these failing septic tanks were modeled in two ways, depending on 

their proximity to the stream networks 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 Basin is 0.00942 × 57 + 0.01198 × 35 ≈ 1. This 

direct pipe was assigned to Sub-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 was 0.00942 × 99 + 0.01198 × 174 ≈ 3. These were assigned to 3 

sub-basins (Sub-basins 14, 15, and 17) in the Lake Monroe Basin. Figure 4.4 shows the subbasins to which the direct pipe discharge from septic tanks was assigned.

According to the EPA (1980), the per capita flow rate from a failing septic tank is about 7.18×105

cfs. The average number of persons per household is 2.59 in Seminole County and 2.32 in 

Volusia County (U.S. Census Bureau, 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 = 1.86×10-4 cfs. Pollutant concentrations of the 

effluent of failed septic tanks were assumed to equal the average concentration measurements 

in Florida compiled 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 BOD5 = 141 mg/L. This analysis assumes that BOD = 2.5 

BOD5. 2 This analysis treats TN loads from septic tanks as nitrate (NO3) loads. 3 This analysis treats TP loads from septic tanks as orthophosphate (PO4) loads.

Parameters

Concentration

(mg/L)

BOD1 352.5

TN2 39.0

TP3 11.0
FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 

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Figure 4.4. Sub-basins to Which Direct Pipe Discharges from Septic Tanks Were 

Assigned
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

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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 fills soil water storage, depending on the storage

nominal capacity of different 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 concentrations 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 measurements. 

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 collected 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 (1995–2005), 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 concentration 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 aquifer contribution by upwelling through fractures or faults in the aquifer could be 

another source of nutrients. 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 [PSUs]). This indicates a contribution from the Floridan aquifer, because 

the salt is considered trapped relict seawater or deeper, brackish water that entered the Floridan 

aquifer when high sea levels inundated large 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 Model balanced the hydrology without considering the Floridan 

aquifer as a source. While this approach tends to overestimate the loading from the watershed, 

it adds a margin of safety (MOS) to the 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, December 2009

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Figure 4.5. Locations of Gemini Springs and Green Springs
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2964A) and St. Johns River above Wekiva River (WBID 2893C), Nutrients and DO, December 2009

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4.2.2.5 Pollutant Loadings through Direct Atmospheric Deposition onto the Receiving 

Waters

Atmospheric deposition is another source of pollutants to receiving waters. 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 onto the surface of 

streams and lakes was modeled explicitly. In HSPF, direct atmospheric deposition was treated 

in two different ways, depending on the form of the available data. If the deposition was in the 

form of a flux (mass per area per time), it was considered dry deposition. If the deposition was 

in the form of rainfall concentration, it was considered wet deposition, and the model 

automatically combines it with the input rainfall time series to compute the resulting flux. 

The 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 (NH4) and nitrate (NO3) concentrations of wet deposition 

were assumed to be the observed mean values, 0.25 and 1.08 mg/L, based on data collected 

from Site F32 of the National Atmospheric Deposition Program (http://nadp.sws.uiuc.edu) in 

Orlando, Florida. The orthophosphate (PO4) concentration of wet deposition was 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/m2

/yr)of nitrogen and 20 mg/m2/yr of 

phosphorus, respectively. These values were equal to the TN and TP dry deposition rates for 

the Lake Apopka area. The model also assumed that the inorganic nitrogen dry deposition 

contained 75 percent of NO3 and 25 percent of NH4 (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 BMPs 

This analysis also considered the attenuation of pollutant loadings by BMPs implemented in the 

basins. The BMP information for the Lake Harney and Lake Monroe Basins 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 BMPs, only structural BMPs were considered in this TMDL analysis. Different 

BMPs in the watersheds were aggregated into three major types: swale, dry detention pond, 

and wet detention pond. Tables 4.6a and 4.6b list the acreage and percent acreage of different 

land uses in the Lake Harney and Lake Monroe Basins, 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 Basins. 

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 

segments located between the basin and final receiving water. Table 4.7 lists the pollutant 

removal efficiencies for the structural BMPs. These removal efficiencies were mainly based on 

the median values of the reported ranges (EPA, 1999; Center for Watershed Protection, 2000; 

Camp Dresser McKee [CDM], 2002).
FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 

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Table 4.6a. Acreages of Different Land Uses 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 Residential 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, December 2009

Florida Department of Environmental Protection

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Figure 4.6. Spatial Distribution of BMPs in the HSPF Model Domain
FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 

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Table 4.7. Pollutant Removal Efficiencies Used in the HSPF Model (percent) 

1 In the HSPF Model, BOD 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 Detention Pond Swale

Total Suspended Solids 

(TSS) 50% 80% 80% 

Total Ammonia 5% 25% 15% 

Nitrate + Nitrite 5% 25% 15% 

PO4 20% 55% 30% 

BOD1 20% 35% 30% 

4.2.2.7 Rainfall and Other Meteorological Data

Rainfall is the driving force of the hydrologic processes in all watersheds. 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 kilometers, 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 HSPF Model domain for the Lake Harney and Lake Monroe Basins. The 

period of record for NEXRAD rainfall was January 1, 1995, to December 31, 2006. Table 4.8

lists the annual average NEXRAD rainfall for the Lake Harney and Lake Monroe Basins 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

2001 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 47.1
FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 

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Florida Department of Environmental Protection

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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 Basins 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 are problematic because they are significantly lower than their historical 

averages. These low readings were corrected by David Clapp of the SJRWMD. This analysis uses the corrected data. 

Station Name Location Data Type

Period of 

Record

Time 

Interval

LISBON1 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 was estimated by applying a 

pan coefficient to the pan evaporation data from LISBON. An annual pan coefficient of 0.78 

was used, resulting in an estimated long-term (1960–2005) average potential evaporation rate 

of 47.4 inches per year (in/yr). This estimate was close 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 Program.

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 Highway 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 periods of record starting in 2005

that did not cover the period for HSPF Model simulation (October 1,1995, through September 

30, 2003). Therefore, these two stations were not used for the hydrology calibration. The 

period of record for Gage 02234500 covered 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 collected flow measurements since 
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

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. 

Figures 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 correlation between the model-simulated and measured flow, a 

comparison of the flow duration curves for simulated and measured flows, and a direct 

comparison of simulated and measured flows, respectively, at Gage 02234100. 

Based on Figures 4.8 and 4.9, reasonable 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 overestimates the flow at Gage 02234500 when the flow is low. 

This could be caused by reverse flow in the Middle St. Johns River resulting from strong winds. 

HSPF does not simulate the reverse flow condition. At the Deep Creek gage (02234100), the 

model again overestimated flow under the low-flow condition. According to SJRWMD staff, 

depending 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 creek, causing reverse flow in the 

creek. However, the overall percentage of blocked or reverse flow was not high. Model 

simulations matched the measured flow reasonably well at this station.

2. Water Quality Calibration and Validation

When the water quality components of the HSPF Model 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 simulations was used for model calibration purposes. 

As discussed in Section 4.2.2.1, when 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 purposes. Because the basin delineation reflected the 

actual basin areas that contribute to the impaired waters, this report used the basin delineations 

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

Florida Department of Environmental Protection

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

02234100
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Florida Department of Environmental Protection

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

(St. Johns River near Sanford, FL)

A

y = 0.8603x + 268.83

R2

 = 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

Observed

HSPF 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 Exceeded

Daily Flow (cfs) 

Observed

Simulated

C

0

2000

4000

6000

8000

10000

12000

1995 1996 1997 1998 1999 2000 2001 2002 2003

Year

Flow (cfs)

Observed

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

Florida Department of Environmental Protection

81

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

(Deep Creek Near Osteen, FL)

A

y = 0.8515x + 5.1344

R2

 = 0.756

0

200

400

600

800

1000

1200

1400

0 200 400 600 800 1000 1200 1400

Observed

HSPF 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 Exceeded

Daily Flow (cfs) 

Observed

Simulated
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

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 water 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 4.11 through 4.14, 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 Periods of Record 

Used for Water Quality Calibrations

1 RCHRES is the segment of receiving water defined in the HSPF Model. RCHRES receives pollutant loadings from point and 

nonpoint sources in the watershed and performs computations on physical, chemical, and biological processes in the receiving 

waterbody.

2 More recent data than 9/30/2003 were available at some stations. However, as the HSPF Model simulation period ended on 

9/30/2003, data points more recent than 9/30/2003 were not used in water quality calibration.

HSPF 

Model 

RCHRES1 WBID Waterbodies

Water Quality 

Station Period of Record2

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 

9/30/2003
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

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

Calibration
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

84

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

2964A)

A

0

0.5

1

1.5

2

2.5

10/24/200111/24/200112/24/2001

1/24/20022/24/20023/24/20024/24/20025/24/20026/24/20027/24/20028/24/20029/24/2002

10/24/200211/24/200212/24/2002

1/24/20032/24/20033/24/20034/24/20035/24/20036/24/20037/24/20038/24/20039/24/2003

Date

TN Concentration (mg/L)

Simulated

Observed

B

0

0.02

0.04

0.06

0.08

0.1

0.12

0.14

0.16

0.18

10/24/200111/24/200112/24/2001

1/24/20022/24/20023/24/20024/24/20025/24/20026/24/20027/24/20028/24/20029/24/2002

10/24/200211/24/200212/24/2002

1/24/20032/24/20033/24/20034/24/20035/24/20036/24/20037/24/20038/24/20039/24/2003

Date

TP Concentration (mg/L)

Simulated

Observed
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

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Figures 4.12a, 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

4

3/13/19967/13/1996

11/13/1996

3/13/19977/13/1997

11/13/1997

3/13/19987/13/1998

11/13/1998

3/13/19997/13/1999

11/13/1999

3/13/20007/13/2000

11/13/2000

3/13/20017/13/2001

11/13/2001

3/13/20027/13/2002

11/13/2002

3/13/20037/13/2003

Date

TN Concentration (mg/L)

Simulated

Observed

B

0

0.1

0.2

0.3

0.4

0.5

0.6

3/13/19967/13/1996

11/13/1996

3/13/19977/13/1997

11/13/1997

3/13/19987/13/1998

11/13/1998

3/13/19997/13/1999

11/13/1999

3/13/20007/13/2000

11/13/2000

3/13/20017/13/2001

11/13/2001

3/13/20027/13/2002

11/13/2002

3/13/20037/13/2003

Date

TP Concentration (mg/L)

Simulated

Observed
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

86

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)

A

0.0

1.0

2.0

3.0

4.0

5.0

10/1/1995

2/1/19966/1/1996

10/1/1996

2/1/19976/1/1997

10/1/1997

2/1/19986/1/1998

10/1/1998

2/1/19996/1/1999

10/1/1999

2/1/20006/1/2000

10/1/2000

2/1/20016/1/2001

10/1/2001

2/1/20026/1/2002

10/1/2002

2/1/20036/1/2003

Date

TN Concentration (mg/L)

Simulated

Observed

B

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

10/1/1995

2/1/19966/1/1996

10/1/1996

2/1/19976/1/1997

10/1/1997

2/1/19986/1/1998

10/1/1998

2/1/19996/1/1999

10/1/1999

2/1/20006/1/2000

10/1/2000

2/1/20016/1/2001

10/1/2001

2/1/20026/1/2002

10/1/2002

2/1/20036/1/2003

Date

TP Concentration (mg/L)

Simulated

Observed
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

87

Figures 4.14a, 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

2

10/17/200210/31/200211/14/200211/28/200212/12/200212/26/2002

1/9/2003

1/23/2003

2/6/2003

2/20/2003

3/6/2003

3/20/2003

4/3/2003

4/17/2003

5/1/2003

5/15/20035/29/20036/12/20036/26/20037/10/20037/24/2003

8/7/2003

8/21/2003

9/4/2003

9/18/2003

Date

TN Concentration (mg/L)

Simulated

Observed

B

0

0.02

0.04

0.06

0.08

0.1

0.12

0.14

10/17/200210/31/200211/14/200211/28/200212/12/200212/26/2002

1/9/2003

1/23/2003

2/6/2003

2/20/2003

3/6/2003

3/20/2003

4/3/2003

4/17/2003

5/1/2003

5/15/20035/29/20036/12/20036/26/20037/10/20037/24/2003

8/7/2003

8/21/2003

9/4/2003

9/18/2003

Date

TP Concentration (mg/L)

Simulated

Observed
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

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4.2.2.9 Summary of Pollutant Loadings from Point and Nonpoint Sources Contributing 

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 watershed (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), contributions 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 summarize 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 distributions 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 condition 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 11 
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

89

percent of the TP loading entering the segments. Direct rainfall contributed about 0.8 percent of 

the total 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

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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 sign indicates 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 

Input1

Lake Jesup 

Input

Watershed 

Input2

Direct 

Rainfall

Point Source 

Contribution

Loss 

through 

Evaporation3

Segment 

Volume 

Change3

Total 

Outflow from 

Segment3

RCHRES 8

(2964A) 1996 1,877,380* Not Applicable 30,738 36,493 Not Applicable -33,195 -44,551 -1,955,967

RCHRES 8

(2964A) 1997 926,998* Not Applicable 12,772 24,187 Not Applicable -25,166 9,460 -929,331

RCHRES 8

(2964A) 1998 2,212,725* Not Applicable 26,817 38,604 Not Applicable -32,141 5,966 -2,240,039

RCHRES 8

(2964A) 1999 621,202* Not Applicable 14,036 22,034 Not Applicable -20,681 593 -635,998

RCHRES 8

(2964A) 2000 1,149,251* Not Applicable 19,353 22,455 Not Applicable -23,592 -22,711 -1,190,178

RCHRES 8

(2964A) 2001 836,530* Not Applicable 12,586 26,192 Not Applicable -23,791 55,044 -796,473

RCHRES 8

(2964A) 2002 1,934,819* Not Applicable 23,768 38,161 Not Applicable -34,635 -18,668 -1,980,781

RCHRES 8

(2964A) 2003 1,570,644* Not 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 Not Applicable 157,287 10,469 Not Applicable -14,820 -23,017 -2,131,920

RCHRES 11

(2964, 2893F) 1997 929,331 Not Applicable 91,366 16,224 Not Applicable -10,960 9,306 -1,016,655

RCHRES 11

(2964, 2893F) 1998 2,240,039 Not Applicable 161,875 16,608 Not Applicable -13,608 4,216 -2,400,697

RCHRES 11

(2964, 2893F) 1999 635,998 Not Applicable 99,730 10,032 Not Applicable -9,258 -29 -736,531

RCHRES 11

(2964, 2893F) 2000 1,190,178 Not Applicable 91,331 9,477 Not Applicable -9,181 -12,407 -1,294,212

RCHRES 11

(2964, 2893F) 2001 796,473 Not Applicable 123,761 11,394 Not Applicable -10,243 23,013 -898,372

RCHRES 11

(2964, 2893F) 2002 1,980,781 Not Applicable 147,461 14,846 Not Applicable -13,287 -5,786 -2,135,587

RCHRES 11

(2964, 2893F) 2003 1,613,601 Not Applicable 194,038 15,742 Not Applicable -11,847 -1,922 -1,813,456
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

91

RCHRES 

(WBID) Year

Main Stem

Upstream 

Input1

Lake Jesup 

Input

Watershed 

Input2

Direct 

Rainfall

Point Source 

Contribution

Loss 

through 

Evaporation3

Segment 

Volume 

Change3

Total 

Outflow from 

Segment3

RCHRES 11

(2964, 2893F) Mean 1,417,796 Not 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, 2893D) 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 -1,717,021
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

92

Table 4.12. 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 tributary 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.

* 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 

Input1

Lake Jesup 

Input

Watershed 

Input2

Direct 

Rainfall

Point Source 

Contribution

Lost in 

Segment3

Segment 

Storage 

Change3

Total Output 

from 

Segment3 

RCHRES 8

(2964A) 1996 6,552,424* Not Applicable 80,198 53,861 Not Applicable -37,457 -161,415 -6,810,441

RCHRES 8

(2964A) 1997 3,701,699* Not Applicable 37,254 37,371 Not Applicable -36,068 71,079 -3,669,177

RCHRES 8

(2964A) 1998 8,778,734* Not Applicable 61,138 56,742 Not Applicable -25,200 49,955 -8,821,459

RCHRES 8

(2964A) 1999 2,960,563* Not Applicable 38,717 34,053 Not Applicable -29,413 -1,846 -3,005,765

RCHRES 8

(2964A) 2000 4,534,291* Not Applicable 51,835 35,703 Not Applicable -30,304 -73,680 -4,665,205

RCHRES 8

(2964A) 2001 3,686,353* Not Applicable 35,247 39,330 Not Applicable -38,959 199,959 -3,522,012

RCHRES 8

(2964A) 2002 8,321,436* Not Applicable 68,930 55,789 Not Applicable -87,693 -145,128 -8,503,590

RCHRES 8

(2964A) 2003 4,818,730* Not Applicable 98,023 49,623 Not Applicable -46,773 19,082 -4,900,521

RCHRES 8

(2964A) Mean 5,419,279* Not Applicable 58,918 45,309 Not Applicable -41,483 -5,249 -5,487,271

RCHRES 11

(2964, 2893F) 1996 6,810,441 Not Applicable 528,977 23,812 Not Applicable -46,434 -65,849 -7,382,645

RCHRES 11

(2964, 2893F) 1997 3,669,177 Not Applicable 281,863 17,123 Not Applicable -34,407 34,432 -3,899,324

RCHRES 11

(2964, 2893F) 1998 8,821,459 Not Applicable 523,156 24,167 Not Applicable -36,944 22,880 -9,308,958

RCHRES 11

(2964, 2893F) 1999 3,005,765 Not Applicable 304,560 15,522 Not Applicable -35,886 -5,113 -3,295,074

RCHRES 11

(2964, 2893F) 2000 4,665,205 Not Applicable 299,876 14,813 Not Applicable -27,518 -36,812 -4,989,188

RCHRES 11

(2964, 2893F) 2001 3,522,012 Not Applicable 375,115 17,056 Not Applicable -37,714 78,618 -3,797,851

RCHRES 11

(2964, 2893F) 2002 8,503,590 Not Applicable 533,009 21,728 Not Applicable -59,671 -46,556 -9,045,212

RCHRES 11

(2964, 2893F) 2003 4,900,521 Not Applicable 693,345 23,084 Not Applicable -61,395 1,999 -5,553,556
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

93

RCHRES (WBID) Year

Main Stem 

Upstream 

Input1

Lake Jesup 

Input

Watershed 

Input2

Direct 

Rainfall

Point Source 

Contribution

Lost in 

Segment3

Segment 

Storage 

Change3

Total Output 

from 

Segment3 

RCHRES 11

(2964, 2893F) Mean 5,487,271 Not 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

RCHRES 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 46,006** 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 -69,681 -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 Applicable 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

(2893C) 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 -6,675,793
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

94

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

1 Main Stem Upstream Input includes only TP loading from the immediate upstream main stem segment. Loading through tributary 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 

Input1

Lake Jesup 

Input

Watershed 

Input2

Direct 

Rainfall

Point Source 

Contribution

Lost in 

Segment3

Segment 

Storage 

Change3

Total Output 

from 

Segment3

RCHRES 8

(2964A) 1996 448,223* Not Applicable 4,093 2,441 Not Applicable -1,525 -19,549 -472,781

RCHRES 8

(2964A) 1997 223,223* Not Applicable 2,421 1,849 Not Applicable -1,932 2,599 -222,962

RCHRES 8

(2964A) 1998 408,176* Not Applicable 3,687 2,557 Not Applicable -1,095 6,584 -406,741

RCHRES 8

(2964A) 1999 182,412* Not Applicable 2,499 1,692 Not Applicable -2,506 992 -183,105

RCHRES 8

(2964A) 2000 265,098* Not Applicable 2,561 1,864 Not Applicable -2,001 -9,745 -277,267

RCHRES 8

(2964A) 2001 351,070* Not Applicable 2,076 1,849 Not Applicable -2,401 30,992 -321,603

RCHRES 8

(2964A) 2002 589,199* Not Applicable 3,694 2,489 Not Applicable -1,653 -16,405 -610,135

RCHRES 8

(2964A) 2003 351,923* Not Applicable 5,111 2,274 Not Applicable -1,678 -5,235 -362,865

RCHRES 8

(2964A) Mean 352,415* Not Applicable 3,268 2,127 Not Applicable -1,849 -1,221 -357,182

RCHRES 11

(2964, 2893F) 1996 472,781 Not Applicable 53,101 1,067 Not Applicable -3,783 -8,074 -531,240

RCHRES 11

(2964, 2893F) 1997 222,962 Not Applicable 28,683 829 Not Applicable -2,808 1,230 -248,436

RCHRES 11

(2964, 2893F) 1998 406,741 Not Applicable 51,242 1,068 Not Applicable -2,958 3,134 -452,959

RCHRES 11

(2964, 2893F) 1999 183,105 Not Applicable 32,105 769 Not Applicable -3,501 223 -212,255

RCHRES 11

(2964, 2893F) 2000 277,267 Not Applicable 26,509 750 Not Applicable -2,402 -4,589 -306,714

RCHRES 11

(2964, 2893F) 2001 321,603 Not Applicable 43,330 798 Not Applicable -3,543 12,951 -349,236

RCHRES 11

(2964, 2893F) 2002 610,135 Not Applicable 54,955 972 Not Applicable -3,192 -6,551 -669,421

RCHRES 11

(2964, 2893F) 2003 362,865 Not Applicable 71,098 1,030 Not Applicable -5,389 -2,680 -432,285

RCHRES 11

(2964, 2893F) Mean 357,182 Not Applicable 45,128 910 Not Applicable -3,447 -544 -400,318
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

95

RCHRES (WBID) Year

Main Stem 

Upstream 

Input1

Lake Jesup 

Input

Watershed 

Input2

Direct 

Rainfall

Point Source 

Contribution

Lost in 

Segment3

Segment 

Storage 

Change3

Total Output 

from 

Segment3

RCHRES 15

(2893E, 2893D) 1996 531,240 64,829** 24,660 3,479 Not 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, 2893D) 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 Applicable 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 -458,351
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

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 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 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 

Input1

Lake Jesup 

Input

Watershed 

Input2

Direct 

Rainfall

Point Source

Contribution

Loss through 

Evaporation3

Segment 

Volume 

Change3

Total Outflow 

from Segment3

RCHRES 8

(2964A) Flow 1,391,193* Not Applicable 21,770 30,197 Not Applicable -27,468 -2,104 -1,417,796

RCHRES 8

(2964A) % Flow4 96.4%* Not Applicable 1.5% 2.1% Not Applicable -1.9% -0.1% -98.2%

RCHRES 11

(2964, 2893F) Flow 1,417,796 Not Applicable 133,356 13,099 Not Applicable -11,651 -828 -1,553,429 

RCHRES 11

(2964, 2893F) % Flow4 90.6% Not 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) % Flow4 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) % Flow4 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 tributary 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 question.

* 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 

Input1

Lake Jesup 

Input

Watershed 

Input2

Direct 

Rainfall

Point Source 

Contribution

Loss in 

Segment3

Segment 

Storage 

Change3

Total Output

from 

Segment3

RCHRES 8

(2964A) Load 5,419,279* Not Applicable 58,918 45,309 Not Applicable -41,483 -5,249 -5,487,271

RCHRES 8

(2964A) % Load4 98.1%* Not Applicable 1.1% 0.8% Not Applicable -0.8% -0.1% -99.3%

RCHRES 11

(2964, 2893F) Load 5,487,271 Not Applicable 442,488 19,663 Not Applicable -42,496 -2,050 -5,908,976

RCHRES 11

(2964, 2893F) % Load4 92.2% Not 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) % Load4 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) % Load4 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 only TP loading from the immediate upstream main stem segment. Loading through tributary 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 

Input1

Lake Jesup 

Input

Watershed 

Input2

Direct 

Rainfall

Point Source 

Contribution

Loss 

through 

Evaporation3 

Segment 

Volume 

Change3 

Total 

Outflow from 

Segment3 

RCHRES 8

(2964A) Load 352,415* Not Applicable 3,268 2,127 Not Applicable -1,849 -1,221 -357,182

RCHRES 8

(2964A) % Load4 98.5%* Not Applicable 0.9% 0.6% Not Applicable -0.5% -0.3% -99.8%

RCHRES 11

(2964, 2893F) Load 357,182 Not Applicable 45,128 910 Not Applicable -3,447 -544 -400,318

RCHRES 11

(2964, 2893F) % Load4 88.6% Not 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) % Load4 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) % Load4 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 Upstream1 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 (lbs/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 (lbs/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, December 2009

Florida Department of Environmental Protection

100

Chapter 5: DETERMINATION OF ASSIMILATIVE 

CAPACITY

5.1 Overall 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 segments 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. 

The percent reductions applied to the upstream boundary were also applied to loadings from the 

human land use areas located in all the immediate watersheds. These human land uses 

include low-, medium-, and high-density residential; industrial; and agricultural. The loadings 

from failed septic tanks within 50 feet 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/North WWTF. Although the longterm 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 uses 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 model simulation period (1996–2003). Long-term average annual loadings 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 reductions 

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. The TP from nonpoint sources 

needs 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 needed reductions of 38 and 32 percent in

nonpoint source TN and TP loadings, respectively, were applied as the needed reductions 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 tributary inflow is not included. 2 Watershed Input includes the loading from the sub-basins directly discharging to the river segment under question.

* 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 (WBIDs) Year

Main Stem 

Upstream Input1

Lake Jesup 

Input

Watershed 

Input2 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 Applicable 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 Applicable 3,634,921 3,634,921
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

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RCHRES (WBIDs) Year

Main Stem 

Upstream Input1

Lake Jesup 

Input

Watershed 

Input2 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 5,627,534 381,327** 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 7,156 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 4,203,901
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

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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 tributary inflow is not included. 2

 Watershed 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 (WBIDs) Year

Main Stem 

Upstream Input1

Lake Jesup 

Input

Watershed 

Input2 Direct Rainfall

Point Source 

Contribution

Total Nonpoint 

Source Loading Total Load

RCHRES 8

(2964A) 1996 300,309* Not Applicable 3,555 2,441 Not Applicable 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, 2893F) 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 208,579 208,579
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

104

RCHRES (WBIDs) Year

Main Stem 

Upstream Input1

Lake Jesup 

Input

Watershed 

Input2 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 3,890 339 488 162,166 162,654
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

105

RCHRES (WBIDs) Year

Main Stem 

Upstream Input1

Lake Jesup 

Input

Watershed 

Input2 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 2,311 315,891 318,203
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

106

Table 5.3. Comparison 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, December 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 (wasteload 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 ≅ ∑ WLAswastewater + ∑ WLAsNPDES Stormwater + ∑ LAs + MOS

It should 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 

wastewater 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 represent 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 calculated (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, December 2009

Florida Department of Environmental Protection

108

Table 6.1. TMDL Components for Nutrient-Impaired Segments of the Middle St. 

Johns River

1 The required percent reduction for WLANPDES Stormwater was considered the same as the required percent reduction for nonpoint 

source loading (Table 6.3). Refer to the discussion in Section 6.3.2 for details.

WBID Parameter

TMDL

(lbs/yr)

WLANPDES 

wastewater

(lbs/yr)

WLANPDES 

Stormwater 1 LA

(lbs/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 the Middle St. 

Johns River

1 The required percent reduction for WLANPDES Stormwater was considered the same as the required percent reduction for nonpoint 

source loading (Table 6.3). Refer to the discussion in Section 6.3.2 for details.

WBID Parameter

TMDL

(lbs/day)

WLANPDES 

wastewater

(lbs/day)

WLANPDES 

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 10,252 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 Implicit
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

109

6.2 Load Allocation

As shown 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 discharges of TN and TP account for less 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 contributions, and direct 

atmospheric deposition onto these river segments. In most cases, nonpoint sources of TN and 

TP loadings were dominated by the upstream contributions. 

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 of 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 % 

Reduction

TP Existing 

Nonpoint Load

(lbs/yr)

TP LA

(lbs/yr)

TP % 

Reduction

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 impaired Middle St. Johns River segments ranges 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 contributions, loadings from the watersheds immediately adjacent 

to the impaired segments, and atmospheric deposition. The percent reductions applied 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 another upstream 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 TN 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 watersheds, which include low-, medium-, and high-density 
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

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 NPDES Wastewater Discharges

Within the watersheds of the impaired Middle St. Johns River segments, only one NPDESpermitted facility, Sanford/North WWTF, was considered a major contributor 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 currently not 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, reductions 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 NPDES 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 reductions required for the LA assigned 

to the nonpoint sources in the river segments that belong to each county and municipality. 

Table 4.2 lists the 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 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.

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 upwelling. A significant 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 Lake Harney and Lake Monroe areas also suggests 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 

calibration. This assumption overestimates the contribution from human sources 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 emphasizes 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, December 2009

Florida Department of Environmental Protection

111

Chapter 7: TMDL IMPLEMENTATION

7.1 Basin Management Action Plan

Following the adoption of these TMDLs by rule, the Department will determine the best course 

of 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 leading to the development of a plan to restore the waterbody. Often this will be 

accomplished cooperatively with stakeholders by creating a Basin Management Action Plan, 

referred to as the BMAP. BMAPs 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 these

TMDLs, 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 municipal 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;

• Implementation 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, December 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 will 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 oldfashioned 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, the 

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, December 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. Lake 

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 International University.

BCI Engineers and Scientists. 2008. Lakes George, Harney, and Monroe TMDL and preBMAP. 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. 2004. 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 precipitation over Florida: Deposition patterns, 

mechanisms, and ecological effects. Prepared for the Environmental Research Laboratory, 

U.S. Environmental Protection Agency, Corvallis, OR.

Camp Dresser Mckee. 2002. Literature review of stormwater best management 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, 2nd 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, Identification 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, December 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 sewage programs statistical data. 

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 Bureau and Thematic Mapping 

Section.

Florida Watershed Restoration Act. Chapter 99-223, Laws of Florida.

Gardner, 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 Publication 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 Jessup 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.

Paul, M.J. and J. Gerritsen. 2002. Nutrient criteria for Florida lakes: A comparison of 

approaches. Prepared for the Florida Department of Environmental Protection. Tetra 

Tech, Inc., 400 Red Brook Boulevard, Suite 200, Owings Mills, MD 21117.

Seminole County Website. 2009. Seminole County water atlas. 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, December 2009

Florida Department of Environmental Protection

115

St. Johns River Water Management District. January 2002. Middle St. Johns River Basin 

Surface Water Improvement and Management Plan. Palatka, FL: St. Johns River Water 

Management District. 

St. 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. Professional 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 urban 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.html. 

U.S. Geological Survey Website. 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, December 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 program 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 stormwater 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 stormwater 

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 

Reauthorization. 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 Stormwater Program 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 drainage 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 

FDOT throughout the 15 counties meeting the population criteria. EPA authorized the 

Department to implement the NPDES Stormwater 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 

revised 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 easily 

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, December 2009

117

Florida Department of Environmental Protection

Appendix B: HSPF Model UCI File from the SJRWMD

RUN

*** Lake Harney watershed: perlnd 101 - 313, implnd 101 - 304, rchres 1 - 11

*** Lake Monroe watershed: perlnd 501 - 673, 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 283 

 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 

 PERLND 264 

 PERLND 265 

 PERLND 266 

 PERLND 267 

 PERLND 268 

 PERLND 269 
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

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 131 
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

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 

 IMPLND 182 
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

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 

 IMPLND 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 302 
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

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 

 PERLND 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 

 PERLND 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 542 
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

122

Florida Department of Environmental Protection

 IMPLND 543 

 IMPLND 544

 RCHRES 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 602 
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

123

Florida Department of Environmental Protection

 IMPLND 603 

 IMPLND 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 

 PERLND 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 663 
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

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-INFO

*** < 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 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

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 MIN 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 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

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 27 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 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

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 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

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 0.960
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

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 0.960

 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

 169 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 0.960
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

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 0.960

 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 0.960
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

131

Florida Department of Environmental Protection

 289 0. 6.0 0.06 300. 0.039 2.0 0.960

 290 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 0.960
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

132

Florida Department of Environmental Protection

 565 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 0.960
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

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)

 101 111 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 0.20 

 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 LZETP
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

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 0.1 
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, December 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

 245 246 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 0.1 
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, December 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, December 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

 185 186 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 0.09
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

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 0.05
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

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 > Lower 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 0.1
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, December 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 > Sediment 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, December 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.

 231 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, December 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.

 567 569 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, December 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, December 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.

 228 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.

 241 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, December 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, December 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, December 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-ULTP2
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

148

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 > Value 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 PWT-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/ft3 

*** 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, December 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.

 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.

 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, December 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, December 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, December 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.

 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.

 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, December 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 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

 106 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

 107 0.0060.0060.008 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 0.0120.0120.0120.0150.0150.0150.0150.0150.0150.0120.0120.012

 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 1510.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

 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 1730.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003
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

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 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

 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 0.010.0080.0060.006

 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 2310.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

 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 2730.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

 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 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

 286 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

 287 0.0060.0060.008 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 0.030.0200.0150.015

 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 2930.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003
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

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 0.0120.0120.0120.0150.0150.0150.0150.0150.0150.0120.0120.012

 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 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

 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

 523 524 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 5330.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

 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 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

 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 0.010.0080.0060.006 

 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 5910.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

 592 5930.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

 
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

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 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

 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 6310.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

 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 6530.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

 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 0.030.0200.0150.015

 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 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012

 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 1240.0250.0250.038 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 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012
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

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 1330.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

***

 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 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

 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 1910.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

 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 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012

 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 2330.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

 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 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

 246 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

 247 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012
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

158

Florida Department of Environmental Protection

 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 0.030.0240.0240.024

 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

 287 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 3040.0250.0250.038 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 3130.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

***

 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 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

 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 0.020.0150.015

 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 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012
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

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 5510.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

 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 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012

 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 5930.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

 

 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 0.0120.0120.0160.0200.0200.0200.0200.0200.0200.0160.0120.012

 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 6130.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

 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 0.03
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

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 6710.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

 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 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

 105 106 .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 0.07 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
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

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 .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

 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 .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
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

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 .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 .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 .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 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

 105 106 .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
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

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 .01 
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

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

 302 304 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 .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

 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 .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 0.07
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

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 .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 .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 MON-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.

 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.
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

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, December 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, December 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.

 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.
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

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-INPUT
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

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 0.02
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

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 2130.0030.0030.0040.0040.0040.0040.0040.0040.0040.0040.0030.003

 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

 283 284 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 0.0250.0250.0300.0450.0450.0450.0450.0450.0450.0300.0250.025

 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 0.05
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

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 0.0250.0250.0300.0450.0450.0450.0450.0450.0450.0300.0250.025

 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 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

 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 0.0250.0250.0300.0450.0450.0450.0450.0450.0450.0300.0250.025

 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 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

 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 0.0250.0250.0300.0450.0450.0450.0450.0450.0450.0300.0250.025

 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 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

 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 0.0030.0030.0040.0060.0060.0060.0060.0060.0060.0040.0030.003

 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 0.04 

 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 0.02
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

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 6130.0030.0030.0040.0040.0040.0040.0040.0040.0040.0040.0030.003

 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 6330.0030.0030.0040.0040.0040.0040.0040.0040.0040.0040.0030.003

 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

 109 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 0.0600.0600.0750.1130.1130.1130.1130.1130.1130.0750.0600.060
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

174

Florida Department of Environmental Protection

 123 1240.0750.0750.1130.1500.1500.1500.1500.1500.1500.1130.0750.075

 125 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

 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 1330.0060.0060.0080.0080.0080.0080.0080.0080.0080.0080.0060.006

***

 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 1440.0750.0750.1130.1500.1500.1500.1500.1500.1500.1130.0750.075 

 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 1530.0060.0060.0080.0080.0080.0080.0080.0080.0080.0080.0060.006

 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 1840.0750.0750.1130.1500.1500.1500.1500.1500.1500.1130.0750.075

 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 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

 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 2040.0750.0750.1130.1500.1500.1500.1500.1500.1500.1130.0750.075

 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 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

 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 0.1
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, December 2009

175

Florida Department of Environmental Protection

 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 0.0600.0600.0750.1130.1130.1130.1130.1130.1130.0750.0600.060

 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 0.0600.0600.0750.1130.1130.1130.1130.1130.1130.0750.0600.060

 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 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

 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 0.0600.0600.0750.1130.1130.1130.1130.1130.1130.0750.0600.060

 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 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

 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 0.0450.0450.0600.0750.0750.0750.0750.0750.0750.0600.0450.045

 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 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

 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 0.0450.0450.0600.0750.0750.0750.0750.0750.0750.0600.0450.045
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

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 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

 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 0.0450.0450.0600.0750.0750.0750.0750.0750.0750.0600.0450.045

 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 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

 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 6240.0750.0750.1130.1500.1500.1500.1500.1500.1500.1130.0750.075

 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 0.1
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, December 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 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

 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 6440.0750.0750.1130.1500.1500.1500.1500.1500.1500.1130.0750.075

 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 0.0060.0060.0080.0120.0120.0120.0120.0120.0120.0080.0060.006

 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

 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
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

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 .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 .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

 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
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

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 .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

 545 546 .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

 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
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

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 .015 

 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 .015
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

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

 545 546 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015 .015
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

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-PROPS 
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

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, December 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.

 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.
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

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.

 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.
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

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, December 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.

 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 0.0060.0060.0100.0150.0150.0150.0150.0150.0150.0100.0060.006

 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 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

 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 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

 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, December 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 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

 166 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

 167 0.03 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 2040.0120.0120.0250.0400.0400.0400.0400.0400.0400.0250.0120.012 

 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 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002 

 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 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002
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, December 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 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002 

 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

 291 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 0.0090.0090.0150.0250.0250.0250.0250.0250.0250.0150.0090.009 

 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 0.0090.0090.0150.0250.0250.0250.0250.0250.0250.0150.0090.009 

 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 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

 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 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

 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 0.0060.0060.0100.0150.0150.0150.0150.0150.0150.0100.0060.006

 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 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

 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 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002 
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, December 2009

190

Florida Department of Environmental Protection

 552 5530.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002

 561 0.0060.0060.0100.0150.0150.0150.0150.0150.0150.0100.0060.006

 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 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

 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 0.0060.0060.0100.0150.0150.0150.0150.0150.0150.0100.0060.006

 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 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

 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 6330.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002

 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 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

 646 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002

 647 0.01 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 6530.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002

 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 0.0020.0020.0030.0040.0040.0040.0040.0040.0040.0030.0020.002
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, December 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

 106 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 0.0150.0150.0250.0380.0380.0380.0380.0380.0380.0250.0150.015

 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 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

 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 1530.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004

***

 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 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

 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 1730.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004

***

 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 1840.0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0300.030
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

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 0.10 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 2040.0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0300.030

 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 2240.0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0300.030

 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 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

 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 2640.0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0300.030

 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 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

 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 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004
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

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 0.0250.0250.0380.0630.0630.0630.0630.0630.0630.0380.0250.025

 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 0.0250.0250.0380.0630.0630.0630.0630.0630.0630.0380.0250.025

 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 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

 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 0.0250.0250.0380.0630.0630.0630.0630.0630.0630.0380.0250.025

 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 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

 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 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

 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 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

 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 5840.0300.0300.0630.1000.1000.1000.1000.1000.1000.0630.0300.030
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

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 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

 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 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

 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 0.0150.0150.0250.0380.0380.0380.0380.0380.0380.0250.0150.015

 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 0.0150.0150.0250.0380.0380.0380.0380.0380.0380.0250.0150.015

 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 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

 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 0.0040.0040.0060.0080.0080.0080.0080.0080.0080.0060.0040.004

 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 6730.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004

 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

 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
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

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

 170 171 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 0.18

 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 0.18
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

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

 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 0.08

 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 0.08 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 0.18

 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 0.08
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

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

 662 664 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-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 0.18
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

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 0.08
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

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 0.18 

 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 0.08

 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.day
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

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, December 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.

 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.
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

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, December 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.

 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.
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

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 0.10.0750.075

 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 0.4
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, December 2009

205

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

 203 204 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 0.10.0750.075

 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 0.8
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

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

 510 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 0.4
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, December 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 0.10.0750.075

 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-SQOLIM
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

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

 128 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 1.0
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

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 

 227 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 0.75
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

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 1.0
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

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, December 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.

 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.

 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, December 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.

 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.

 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, December 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, December 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, December 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.

 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.

 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.

 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.
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

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.

 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-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-INFO
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

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 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

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

 141 144 200. 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

 241 244 200. 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 0.05
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

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

 101 664 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 0.083
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

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-PARM1 
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

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 0.5
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

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 0.5
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

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 WSQOP 

*** <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 0.5
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

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

 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. 0.005 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 0.5
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

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 0.5
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

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 

*** <ILS > 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

 162 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

 183 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

 241 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

 262 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 0.5
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

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-INFO
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

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 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

230

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

***RC 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 0.01
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

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 possible 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, December 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 ***

 # - # Substance-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 Conc 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. LB
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

233

Florida Department of Environmental Protection

 END 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

 CONS-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

*** RCHRES 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. 0.4
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, December 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 0.065

 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 0.065
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

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 2.82
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

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-CFOREA 

 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/mol mols/mol

 1 20 1.68 106. 16. 49.

 END CONV-VAL1 

 NUT-BENPARM 

*** RCHRES BRTAM(1) BRTAM(2) BRPO4(1) BRPO4(2) ANAER
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

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 0.085 

 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-PARM1

 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 0.000
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

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 RCHRES

 

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 0.0
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

239

Florida Department of Environmental Protection

 9. 27.5 236.5 5.7

 10. 27.7 264.1 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

 rows 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

 END 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 FTABLE136
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

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, December 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

 depth 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 186
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

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 FTABLE 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, December 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 FTABLE207
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

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 outflow1 ***

 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, December 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

 depth 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

 FTABLE 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 5.0
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

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. 2525. 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 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, December 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 1.75 
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

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

 rows 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 outflow1 ***

 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 FTABLE276
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

249

Florida Department of Environmental Protection

 FTABLE 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, December 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. 119.1 328.4 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 TIMESERIES
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

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 

 END 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

WDM2 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 PERLND 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 PERLND 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 DTMPG 
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

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 PREC 

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 4822 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 SAME 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 EXTNL 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 PREC 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 EXTNL 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 PREC ENGL SAME RCHRES 15 EXTNL PREC

WDM2 4154 PREC ENGL SAME RCHRES 256 257 EXTNL PREC
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

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 4803 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 RCHRES 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 ENGL 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 ENGL 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 NUIF1 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) are 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, December 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

PERLND 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 206 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

IMPLND 284 12 RCHRES 10 1

IMPLND 284 17 RCHRES 206 21

RCHRES 206 RCHRES 10 35
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

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

PERLND 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 RCHRES 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 RCHRES 8 2

PERLND 242 12 RCHRES 187 42

PERLND 243 0 RCHRES 8 2

PERLND 244 14 RCHRES 8 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, December 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 RCHRES 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

PERLND 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 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, December 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

PERLND 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 RCHRES 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 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, December 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 RCHRES 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 45
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

259

Florida Department of Environmental Protection

PERLND 141 290 RCHRES 3 2

PERLND 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

PERLND 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 136 21

IMPLND 144 32 RCHRES 137 41

RCHRES 136 RCHRES 3 35

RCHRES 137 RCHRES 3 45

RCHRES 1 RCHRES 3 3

PERLND 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 71 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 42
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

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 RCHRES 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 42
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

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

PERLND 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 236 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

RCHRES 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

PERLND 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 22
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

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 541 133 RCHRES 14 1

IMPLND 541 16 RCHRES 246 21

IMPLND 541 5 RCHRES 247 41

IMPLND 542 2989 RCHRES 14 1

IMPLND 542 339 RCHRES 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 RCHRES 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 24
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

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 RCHRES 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 582 352 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 42
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

264

Florida Department of Environmental Protection

PERLND 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

IMPLND 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 15 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

PERLND 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 44
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

265

Florida Department of Environmental Protection

PERLND 607 7 RCHRES 17 2

PERLND 607 15 RCHRES 277 42

PERLND 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 29 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 RCHRES 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 42 

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 RCHRES 18 25
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

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 628 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 RCHRES 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 633 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 RCHRES 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 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, December 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

PERLND 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 307 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

PERLND 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

IMPLND 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 SCHEMATIC 
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

268

Florida Department of Environmental Protection

EXT TARGETS

<-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Volume-> <Member> Tsys Aggr Amd ***

<Name> x <Name> x x<-factor->strg <Name> x <Name>qf tem strg strg***

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 FLOW 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

RCHRES 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

RCHRES 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 AGGR 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 PLANK TPKCF1 5 1 WDM1 126 FLOW 1 ENGL AGGR REPL

END EXT TARGETS

MASS-LINK

 MASS-LINK 2

<-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 0.2 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-LINK 2

 MASS-LINK 4

<-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 0.2 RCHRES INFLOW ISED 1

PERLND SEDMNT SOSED 1 0.4 RCHRES INFLOW ISED 2

PERLND SEDMNT SOSED 1 0.4 RCHRES INFLOW ISED 3
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

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 RCHRES INFLOW PKIF 4

PERLND PQUAL POQUAL 4 14.29167 RCHRES INFLOW PKIF 5

 END MASS-LINK 4

 

 MASS-LINK 1

<-Volume-> <-Grp> <-Member-><--Mult--> <-Target vols> <-Grp> <-Member-> ***

<Name> <Name> x x<-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 0.2 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-LINK 1

 

 MASS-LINK 3

<-Volume-> <-Grp> <-Member-><--Mult--> <-Target vols> <-Grp> <-Member-> ***

<Name> <Name> x x<-factor-> <Name> <Name> x x ***

RCHRES ROFLOW RCHRES INFLOW 

 END MASS-LINK 3

 MASS-LINK 6

<-Volume-> <-Grp> <-Member-><--Mult--> <-Target vols> <-Grp> <-Member-> ***

<Name> <Name> x x<-factor-> <Name> <Name> x x ***

RCHRES OFLOW 1 RCHRES INFLOW 

 END MASS-LINK 6

 MASS-LINK 22

<-Volume-> <-Grp> <-Member-><--Mult--> <-Target vols> <-Grp> <-Member-> ***

<Name> <Name> x x<-factor-> <Name> <Name> x x ***

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 0.01839 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 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, December 2009

270

Florida Department of Environmental Protection

PERLND PQUAL IOQUAL 4 0.68056 RCHRES INFLOW ICON 10

 END MASS-LINK 22

 MASS-LINK 21

<-Volume-> <-Grp> <-Member-><--Mult--> <-Target vols> <-Grp> <-Member-> ***

<Name> <Name> x x<-factor-> <Name> <Name> x x ***

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 21

 MASS-LINK 23

<-Volume-> <-Grp> <-Member-><--Mult--> <-Target vols> <-Grp> <-Member-> ***

<Name> <Name> x x<-factor-> <Name> <Name> x x ***

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 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-LINK 23

 MASS-LINK 24

<-Volume-> <-Grp> <-Member-><--Mult--> <-Target vols> <-Grp> <-Member-> ***

<Name> <Name> x x<-factor-> <Name> <Name> x x ***

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 SOQUAL 4 14.29167 RCHRES INFLOW ICON 10

PERLND PQUAL IOQUAL 4 14.29167 RCHRES INFLOW ICON 10

 END MASS-LINK 24

 MASS-LINK 25

<-Volume-> <-Grp> <-Member-><--Mult--> <-Target vols> <-Grp> <-Member-> ***
FINAL TMDL Report: Middle St. Johns Basin, Six Segments between the Inlet of Lake Harney (WBID 

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Florida Department of Environmental Protection

<Name> <Name> x x<-factor-> <Name> <Name> x x ***

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 NUIF1 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-LINK 25

 MASS-LINK 35

<-Volume-> <-Grp> <-Member-><--Mult--> <-Target vols> <-Grp> <-Member-> ***

<Name> <Name> x x<-factor-> <Name> <Name> x x ***

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 0.1 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

RCHRES 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-LINK 35

 MASS-LINK 42

<-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 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 RCHRES 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-LINK 42

 

 MASS-LINK 41

<-Volume-> <-Grp> <-Member-><--Mult--> <-Target vols> <-Grp> <-Member-> ***

<Name> <Name> x x<-factor-> <Name> <Name> x x ***

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 41
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

272

Florida Department of Environmental Protection

 

 MASS-LINK 44

<-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 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-LINK 44

 MASS-LINK 45

<-Volume-> <-Grp> <-Member-><--Mult--> <-Target vols> <-Grp> <-Member-> ***

<Name> <Name> x x<-factor-> <Name> <Name> x x ***

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 NUIF1 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-LINK 45

 MASS-LINK 52

<-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 0.012873 RCHRES INFLOW PKIF 3

PERLND PQUAL IOQUAL 4 0.01839 RCHRES INFLOW PKIF 3

PERLND PQUAL AOQUAL 4 0.01839 RCHRES INFLOW 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 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, December 2009

273

Florida Department of Environmental Protection

PERLND PQUAL SOQUAL 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-LINK 52

 

 MASS-LINK 51

<-Volume-> <-Grp> <-Member-><--Mult--> <-Target vols> <-Grp> <-Member-> ***

<Name> <Name> x x<-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 INFLOW IVOL 

COPY OUTPUT MEAN 2 RCHRES INFLOW OXIF 2

COPY OUTPUT MEAN 3 RCHRES INFLOW NUIF1 1

COPY OUTPUT MEAN 4 RCHRES INFLOW NUIF1 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, December 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 RUN
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

275

Florida Department of Environmental Protection

Appendix C: HSPF Model Land Use Classification versus FLUCCS Code

HSPF Model Land Use 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

Agriculture 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

Forest 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 1100
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

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Florida Department of Environmental Protection

HSPF Model Land Use 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

Wetlands 6110

Wetlands 6170

Wetlands 6181

Wetlands 6200

Wetlands 6210

Wetlands 6220

Wetlands 6250

Wetlands 6300

Wetlands 6410

Wetlands 6430

Wetlands 6440

Wetlands 6460

Wetlands 6500
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

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Florida Department of Environmental Protection

Appendix D: Response from the Department to Comments from the SJRWMD 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 for 

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 

typical 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 Comments: 

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 show 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, December 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 2nd full paragraph: can absorbs

light, produce smaller amounts of ..., 5th full p ... because the later latter has a ...; page 41 first 

heading: ... what should be these targets be?; page 47 2nd full paragraph: ... manner, to 

analyzing analyze the DO and ...;

Response from 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 providing 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 Executive 

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 TMDLs. 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 outlet, we realized that 

excluding the chla, 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 chla 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 chla vs. nutrient functional relationships were not used to develop the nutrient criteria. This 

revision does cause the “achievable chla concentration” to change based on the target TN and 

TP concentrations and the chla vs. nutrient functional relationships (Table 3.6 of the TMDL 

report). However, the change is relatively minor. Before this revision, the achievable chla

concentrations for the upstream and downstream segments were 5.6 μg/L and 9.6 μg/L, 

respectively. After the revision, the achievable chla concentrations are 5.7 μg/L and 9.1 μg/L, 

respectively, for the upstream and downstream segments.

However, after all the reanalyses were conducted, we decided that the chla, TN, and TP 

concentrations from 2000 still would not be included in the chla 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 increases. We agree with Dr. BrandtWilliams 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 

chla 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 5th 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, December 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 chla values included in the TMDL report are corrected chla

values. We will clarify that in Chapter 2 of the TMDL report.

6. We will address all the editing 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 Comments:

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 subbasins 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 

calculated 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, December 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 name 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. While 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 (specific comments 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. Therefore, we add the chla, TN, and TP concentration 

data from these two years to the data set we used for chla vs. nutrient relationship analyses.

5. For specific comment 21, we concur.

6. For specific comment 22, the relationship between chla 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 chla-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 chla

and nutrients in the published literature taking the following forms:

log (Chla) = a *log (TP) – b 

log(Chla) = 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 logistic 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.
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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 loading – Trophic state relationships 

in Florida lakes. 

Chapra, S.C. 1997. Surface water-quality modeling. WCB McGraw-Hill.

Jones, J.R., and R. Bachman. 1976. Prediction of phosphorus and chlorophyll levels in lakes. J 

Water Pollut Con F 48: 2176-2182. 

Sakamoto, M. 1996. Primary production by phytoplankton community in some Japanese lakes 

and its dependence on depth. Arch. 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 

hydrologic connections between different HSPF sub-basins 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 User’s Manual. 

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 impervious 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 DCIAs: low-, 

medium-, and high-density residential, and industrial. Percent impervious areas for each land

use were assigned based on previous modeling experience in the St. Johns River Basin and 

finalized through the hydrology calibration. Tables 4.4a and 4.4b show the percent areas that 

were considered impervious areas in the HSPF Model 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 Model is not a hydrodynamic model and therefore does not 

handle reverse flow.
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Ms. Mary E. Brabham, P.E.

Middle St. Johns River Basin Program Manager

August 6, 2009

Page Five

12. For specific 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 adequately 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 Model 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 management district in future TMDL development and implementation 

and restore impaired waters in the Middle St. Johns River Basin. 

Sincerely,

Jan Mandrup-Poulsen, Administrator

Watershed Evaluation and TMDL Section

ec: Chris Ferraro/DEP
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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

August 5, 2009

Ms. Kim Ornberg, PE

Principal Engineer

Water Quality Section

Seminole County Public Works

177 Bush Loop

Sanford, 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 Basin. 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: 

Seminole 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 current 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 coliforms 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 so 
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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 state (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 state’s IWR assessment process. These are the water segments that are on the 

Verified List and have 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 state-verified waters will become the focus of the TMDL Program. At that time, we will 

certainly work very closely with local governments, water management districts, 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 the 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 

Website. In fact, the Cycle 2 Verified List only includes the impairments that the Department 

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 is included in the Cycle 1 Verified List, as long as the particular 

waterbody-parameter is not included in the Cycle 2 Delist List, the verified impairment remains 

and we will develop a TMDL for the waterbody.

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 River 
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(2893C)” document 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

 Levels 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 Lake 
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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 levels 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 

more 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 phytoplankton 

abundance. For example, the r2 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 

phenomena in many water bodies throughout Florida, a simple DO standard that does not 
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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 

River 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 chla 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 chla and 

nutrients were different in the upstream and downstream segments and what caused the 

observed differences. 

After comparing all the available hydrologic 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 chla concentrations in the 

upstream and downstream segments were caused by the fact that the long-term average chla

concentration in Lake Jesup was about 6 to 7 times higher than the long-term average chla

concentration in the main stem of the St. Johns River (upstream of Lake Jesup), while the longterm average nutrient concentrations of the lake were less than 2 times higher than the nutrient 

concentrations in the main stem segments of the St. Johns River. The higher chla-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 expectations for the achievable chla concentrations should be different. Even 

with the same target TN and TP concentrations, the downstream segments should have a 

higher expected chla concentration because they receive discharge from Lake Jesup, which has 

a higher chla-to-nutrient ratio due to the longer water residence time. We consider the higher 

achievable chla 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 the main stem segment was 

incorporated into the HSPF Model 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). In 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 percent 
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reduction needed for the watershed immediately adjacent to the impaired water segments. We 

believe 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 concentrations 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 

activities 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 addressing nutrient loadings from 

anthropogenic sources. Once we achieve the nutrient goals, the resulting DO concentration will 

be considered the natural DO concentration, even if it is still lower than the existing 5.0 mg/L 

state criterion.

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

 Smith 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.

Response:

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 state’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 established 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 the 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 DO 
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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 criterion, it would be 

considered natural, due to the input of organic materials from the surrounding woodland and the 

overgrowtn of emergent aquatic plants in the canal. 

Seminole County Comment 5:

2. Inconsistent leap between correlation water quality parameters and a causal 

relationship. 

 Typically, 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. 

 Alternatively, in Smith 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 "background" nutrient levels.

Response:

Nutrients can certainly influence the DO concentration in surface waters by influencing 

phytoplankton biomass, which, in most cases, can be represented by the chla 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 Strand and Crane Strand 

Drain, so that the main stem segments can be considered 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 chla 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. Chla 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 chla

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 chla 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 

influences 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 

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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 excessive 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 chla

and nutrient relationship. This is why, for Smith Canal, we addressed the impact of nutrients 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 below -200 mvolt, which is often observed in the 

hypolimnion of some deep and stratified lakes and rivers. DO 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 that 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 system 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 nighttime 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. This TMDL addresses 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.

 The 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 

restoration and storm event sampling to calculate stormwater treatment efficiency of 

the facility.

 One 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 

represents 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, December 2009

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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 you on TMDL development and implementation. 

We do intend to work very closely with you and other local governments and stakeholders when 

we are ready to discuss the priorities for non-Consent Decree waters that were verified by the 

state. 

Sincerely,

Jan Mandrup-Poulsen, Administrator

Watershed Evaluation and TMDL Section

Florida Department of Environmental Protection

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

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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

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, these final TMDLs will be improved. To aid you in 

reviewing our responses, we have included your comments, 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: Marjorie Bixby/FDOT 

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

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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 justified, 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 the 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 

provision of the proposal was to level the “playing field,” such that once stakeholders have

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 WLAsw) 

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 following language in the NPDES 

Stormwater Discharges section in Chapter 6 to address the issue of allocation between the 

WLA for stormwater and the LA portions of the TMDL.
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“It should be noted that any MS4 permittee is only responsible for reducing the 

anthropogenic 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 

dynamics. 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 loads to the subbasins. In addition, load allocation during the BMAP stage may be based on jurisdictional

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 

considered. Were these considered?

Response: 

We will take FDOT’s suggestions to put into the TMDL report more information on how the 

HSPF Model deals 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, December 2009

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• The death and decay of algal cells, which turns 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 deposition 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 module. More detailed descriptions of nutrient kinetics in 

receiving waters handled by the 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. 

Environmental 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 

land 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 concentration 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 loads. 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 loads to the subbasins. In addition, load allocation during the BMAP stage may be based on jurisdictional

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, December 2009

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Florida Department of Environmental Protection

We will use FDOT’s suggestions to add to the TMDL report more information on how the 

HSPF Model deals 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; 

• The death and decay of algal cells, which turns 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 deposition 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 module. 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. 

Environmental Protection Agency, National Exposure Research Laboratory, Athens, GA, in 

cooperation with the U.S. Geological Survey, 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