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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> 423<br />

Lake Jesup (WBID 2981)<br />

Seasonal Averages<br />

(mg/l)<br />

0.08<br />

0.06<br />

0.04<br />

0.02<br />

0<br />

R 2 = 0.0133<br />

1991<br />

1992<br />

1993<br />

1994<br />

1995<br />

1996<br />

1997<br />

1998<br />

Years<br />

Un-Ionized Ammonia<br />

Linear (Un-Ionized Ammonia)<br />

Lake Jesup (WBIDs 2981 & 2981A)<br />

Seasonal Averages<br />

(mg/l)<br />

6<br />

5<br />

4<br />

3<br />

2<br />

1<br />

0<br />

1991<br />

1992<br />

1993<br />

1994<br />

1995<br />

1996<br />

1997<br />

Total Nitrogen<br />

Years<br />

1998<br />

1999<br />

R 2 = 0.0345<br />

2000<br />

2001<br />

2002<br />

2003<br />

Linear (Total Nitrogen)<br />

Figure F.4: Water Quality Trends for Lake Jesup

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