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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> 277<br />

WBID<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 />

3030 Long Branch <strong>St</strong>ream 3F Coliform<br />

Bacteria<br />

Parameters<br />

Identified Using<br />

the IWR<br />

Fecal Coliform<br />

Bacteria<br />

Proposed<br />

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

Verified<br />

List<br />

3030 Long Branch <strong>St</strong>ream 3F Iron Iron Verified<br />

List<br />

3030 Long Branch <strong>St</strong>ream 3F Nutrients Nutrients (Chla) Not<br />

Impaired<br />

3030 Long Branch <strong>St</strong>ream 3F Coliform<br />

Bacteria<br />

Total Coliform<br />

Bacteria<br />

Verified<br />

List<br />

3030 Long Branch <strong>St</strong>ream 3F Turbidity Turbidity Not<br />

Impaired<br />

3031 Unnamed Drain <strong>St</strong>ream 3F No Data 3a<br />

3033 Unnamed Drain <strong>St</strong>ream 3F No Data 3a<br />

Comments 3<br />

Integrated Priority Projected<br />

ment 2 ment 2<br />

Report<br />

Category 1<br />

for<br />

TMDL<br />

Year for<br />

TMDL<br />

(# Exceedances/ # Samples)<br />

PP= Planning Period VP= Verified<br />

Develop-<br />

Develop-<br />

Period<br />

5 High 2004 PP - 1/1 values exceed criterion.<br />

VP - 13/26 values exceed criterion.<br />

Coliform median 440<br />

colonies/100ml, range 8 - 3,100<br />

colonies/100ml. No more than 6<br />

values per month.<br />

5 High 2004 PP - 0/0 values exceed criterion.<br />

VP - 12/26 values exceed criterion.<br />

2 Delist. PP - Insufficient data<br />

available to calculate annual mean,<br />

12 chla values, range <strong>of</strong> chla values<br />

0 - 1.99 ug/L, mean chla over entire<br />

period 1.14 ug/L. VP - 0 chla<br />

annual means exceeded 20 ug/l, 16<br />

chla values, range <strong>of</strong> chla values<br />

1.4 - 35.8 ug/L, mean chla over<br />

entire period 9.42 ug/L. The annual<br />

mean chla concentration in 2001<br />

was 6.0 ug/l and in 2002 was 13.9<br />

ug/l. 27 TN values, median 0.82<br />

mg/l. 30 TP values, median 0.20<br />

mg/l.<br />

5 High 2004 PP - 0/0 values exceed criterion VP<br />

- 11/26 values exceed criterion.<br />

Coliform median 2,250<br />

colonies/100ml, range 434 - 27,000<br />

colonies/100ml. No more than 5<br />

values per month.<br />

2 Delist. PP - 1/5 values exceed<br />

criterion, range 5.4 - 42 NTU, mean<br />

15.82 NTU. VP - 1/28 values<br />

exceed criterion, range 2.2 - 71<br />

NTU, mean 12.05 NTU.

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