Upper St. Johns River Group 3 Basin

Verified List

OGC Case 

Number Planning Unit WBID Water Segment Name Waterbody Type Waterbody Class1 1998 303(d) Parameters of Concern Parameters Assessed Using the Impaired Waters Rule (IWR) Concentrations Causing Impairment2 Priority for TMDL Development3 Projected Year of TMDL Development3 

(# of 

PP=Plan

Jane Green Creek 3073 CRABGRASS CREEK Stream 3F Copper > e(0.854[lnH]-1.465) Medium 2009 PP = 7 / 46; VP = 6 / Jane Green Creek 3073 CRABGRASS CREEK Stream 3F Nutrients Nutrients (Chl a)

Median TN = 1.10 mg/L 

Median TP = 0.03 mg/L Medium 2008

PP - 1 chl a annual mannual mean exceed69 μg/L. mean = 5.9 based on a TN/TP mTN/TP median of 9.9

Jane Green Creek 3073 CRABGRASS CREEK Stream 3F Coliform Bacteria

Fecal Coliform Bacteria > 400 per 100 ml Medium 2008

PP = 2 / 10; VP = 5 / 70 counts/100 ml, ra

Jane Green Creek 3073 CRABGRASS CREEK Stream 3F Coliform Bacteria

Total Coliform Bacteria > 2400 per 100 ml Medium 2008

PP = No Data; VP = counts/100ml, mediacounts/100 ml. 

Lake Poinsett 2893K LAKE POINSETT Lake 3F Dissolved Oxygen Dissolved Oxygen < 5.0 mg/L Medium 2008

PP = 92 / 220; VP = and nutrients are the nitrogen and phosphverified period. 127 Tmedian 0.07 mg/l. In6.57 mg/l, mean 5.5

Lake Poinsett 2893K LAKE POINSETT Lake 3F Nutrients (TSI)

Median TN = 1.99 mg/L 

Median TP = 0.07 mg/L Medium 2009

PP - 2 TSI annual mmeans exceeded 60 phosphorus based oPP and a TN/TP mevalues, median 1.99 completed TMDL in state-adopted TMDL

Lake Poinsett 2893L

ST JOHNS RIVER ABOVE LAKE POINSETT Stream 3F Dissolved Oxygen Dissolved Oxygen < 5.0 mg/L High 2004

PP = 74 / 130; VP = and nutrients are the nitrogen and phosphTP pairs). 98 TN va0.11 mg/l. Insufficienmean 5.09 mg/l, ran

Lake Poinsett 2893L

ST JOHNS RIVER ABOVE LAKE POINSETT Stream 3F Nutrients

Nutrients (Historic Chla)

Median TN = 1.90 mg/L 

Median TP = 0.11 mg/L High 2004

PP - Chla annual melevel (6.1 μg/L, calcuby more than 50%; years (2000 and 200the historic level by m16.6, the community ratio was calculated 

Puzzle Lake 2893I

ST JOHNS RIVER ABOVE PUZZLE LAKE Stream 3F Dissolved Oxygen Dissolved Oxygen < 5.0 mg/L Medium 2008

PP = 96 / 209; VP = and nutrients are the nitrogen and phosphbased on 120 TN an137 TP values, med271 DO values, med12.16 mg/l. 

Puzzle Lake 2893I

ST JOHNS RIVER ABOVE PUZZLE LAKE Stream 3F Nutrients

Nutrients (Historic Chl a)

Median TN = 1.93 mg/L 

Median TP = 0.07 mg/L Medium 2008

PP - Chl a annual mconcentrations: 5.2 alevel of 2.8 μg/L (whthrough 1984) by moconsecutive years (2ug/L, respectively) eBased on the TN/TP limited by nitrogen abased on 120 pairs o

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Upper St. Johns River Group 3 Basin

Verified List

OGC Case 

Number Planning Unit WBID Water Segment Name Waterbody Type Waterbody Class1 1998 303(d) Parameters of Concern Parameters Assessed Using the Impaired Waters Rule (IWR) Concentrations Causing Impairment2 Priority for TMDL Development3 Projected Year of TMDL Development3 

(# of 

PP=Plan

St. Johns Marsh 28931 SAWGRASS LAKE Lake 1 Dissolved Oxygen < 5.0 mg/L Medium 2009

PP = 77 / 113; VP = Phosphorus exceedcausitive pollutant. 3median 1.4 mg/l. 1 B3.84 mg/l, mean 4.0

St. Johns Marsh 28931 SAWGRASS LAKE Lake 1

Mercury (Based on Fish Consumption Advisory) Mercury (in fish tissue

Exceeds DOH threshhold 

(> 0.5 mg/kg) Low 2011

Based on test resultof 2004, the average ppm. The lake is the

St. Johns Marsh 2893Q LAKE HELEN BLAZES Lake 1 Dissolved Oxygen Dissolved Oxygen < 5.0 mg/L High 2004

PP = 122 / 151; VP and nutrients are the nitrogen and phosphbased on 91 TN and TN values, median 1values, median 2.81 

St. Johns Marsh 2893Q LAKE HELEN BLAZES Lake 1 Nutrients Nutrients (TSI)

Median TN = 1.71 mg/L 

Median TP = 0.15 mg/L High 2004

PP - 2 TSI annual mTSI means exceede1.71 mg/L. 91 TP va63.0 μg/L in both PP limited by nitrogen a11.9 (164 values) in in the VP. EPA comPLRG, but it is not a 

St. Johns Marsh 2893X

ST JOHNS RIVER ABOVE SAWGRASS LAKE Stream 1

Dissolved Oxygen - BOD

Dissolved Oxygen - Biochemical Oxygen Demand < 5.0 mg/L High 2004

PP = 27 / 41; VP = 6 BOD exceeds the sccausative pollutant (1.58 mg/l. 16 TP val2.8 mg/L. 59 DO val0.14 - 8.61 mg/l. 

St. Johns Marsh 3108C THREE FORKS Stream 1 Dissolved Oxygen < 5.0 mg/L Medium 2009

PP = 59 / 71; VP = 1Nitrogen exceeds thcausative pollutant. median 0.12 mg/l. In2.28 mg/l, mean 2.8

Toschatchee 28935

ST JOHNS RIVER ABOVE PUZZLE LAKE S Stream 3F Dissolved Oxygen < 5.0 mg/L Medium 2009

PP = 42 / 152; VP = Nitrogen exceeds thcausative pollutant. median 0.07 mg/l. 1values, median 6.5 mmg/L. 

1 Florida's waterbody classifications are defined as: 1 - Potable water supplies, 2 - Shellfish propagation or harvesting, 3F - Recreation, propagation, and maintenance of a healthy, well-balanced population of fish and wildlife 

 in fresh water, 3M - Recreation, propagation, and maintenance of a healthy, well-balanced population of fish and wildlife in marine water, 4 - Agricultural water supplies, 5 - Navigation, utility, and industrial use.if it was originally high or changed to medium if it was originally low. In the case of mercury, the priority remains low. Where a parameter was only identified as impaired under the IWR, priorities of high, medium, or low were used. 4 PP - Planning Period (January 1, 1992 through December 31, 2001); VP - Verified Period (January 1, 1997 through June 30, 2004)

The Upper St.Johns Verified List is based on IWR Run 17.

2 "ln H" means the natural logarithm of total hardness expressed as mg/L of CaCO3. For metals criteria involving equations with hardness, the hardness shall be set as 25 mg/L if actual hardness is < 25mg/L and set 

at 400 mg/L if actual hardness is > 400 mg/L. The concentration causing impairment for nutrient listings is the median.

3 Priority and schedule for this WBID reflects the priority established for the WBID in the 1998 303(d) list. Where a parameter was 1998 303(d) listed, the priority shown for it in the 1998 303(d) list was retained

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