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Middle St. Johns - Florida Department of Environmental Protection

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Water Quality Assessment Report: <strong>Middle</strong> <strong>St</strong>. <strong>Johns</strong> 323<br />

WBID<br />

2893D<br />

[Called<br />

2893D<br />

(&<br />

2893C)<br />

on 1998<br />

303(d)<br />

list]<br />

Waterbody<br />

Segment Name<br />

Waterbody<br />

Type<br />

Waterbody<br />

Class<br />

1998 303(d)<br />

Parameters<br />

<strong>of</strong> Concern<br />

Parameters<br />

Identified Using<br />

the IWR<br />

Proposed<br />

<strong>St</strong>atus<br />

Lake Monroe Lake 3F Zinc Not<br />

Impaired<br />

Integrated<br />

Report<br />

Category 1<br />

2<br />

Priority<br />

for<br />

TMDL<br />

Development<br />

2<br />

Projected Comments 3<br />

Year for<br />

TMDL<br />

Development<br />

Period<br />

2<br />

(# Exceedances/ # Samples)<br />

PP= Planning Period VP= Verified<br />

2893D1 Lake Monroe Drain Lake 3F No Data 3a<br />

2893D2 Lake Monroe Drain Lake 3F No Data 3a<br />

2893E <strong>St</strong>. <strong>Johns</strong> River<br />

Above Lake<br />

Monroe<br />

<strong>St</strong>ream 3F Dissolved Oxygen Verified<br />

List<br />

5 Medium 2008 DO met verification threshold <strong>of</strong><br />

IWR, and elevated algal biomass is<br />

the causative pollutant. PP - 38/101<br />

values below DO criterion. VP -<br />

24/77 values below criterion. 262<br />

DO values below criterion, mean<br />

5.18 mg/l, median 5.36 mg/l, range<br />

0.43 - 10.76.<br />

2893E<br />

2893E<br />

2893E<br />

2893E<br />

<strong>St</strong>. <strong>Johns</strong> River<br />

Above Lake<br />

Monroe<br />

<strong>St</strong>. <strong>Johns</strong> River<br />

Above Lake<br />

Monroe<br />

<strong>St</strong>. <strong>Johns</strong> River<br />

Above Lake<br />

Monroe<br />

<strong>St</strong>. <strong>Johns</strong> River<br />

Above Lake<br />

Monroe<br />

<strong>St</strong>ream 3F Fecal Coliform<br />

Bacteria<br />

Not<br />

Impaired<br />

<strong>St</strong>ream 3F Iron Not<br />

Impaired<br />

<strong>St</strong>ream 3F Mercury (in fish<br />

tissue)<br />

Planning<br />

List<br />

<strong>St</strong>ream 3F Nutrients (Chla) Verified<br />

List<br />

2<br />

2<br />

3c Limited consumption advisory.<br />

5 Medium 2008 Co-limitation <strong>of</strong> nitrogen and<br />

phosphorus based on a TN/TP<br />

median <strong>of</strong> 19 (102 values) in the PP<br />

and a median <strong>of</strong> 18 (80 values) in<br />

the VP. PP - 0 Chla annual means<br />

exceeded 20 ug/l. VP - 1 Chla<br />

annual means exceeded 20 ug/l<br />

(2002). 82 TN values, median 1.39<br />

mg/L. 81 TP values, median 0.08<br />

mg/L.

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