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Middle St. Johns - Florida Department of Environmental Protection

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

Crane <strong>St</strong>rand (WBID 3014)<br />

Seasonal Averages<br />

(mg/l)<br />

10<br />

5<br />

0<br />

2000<br />

2001<br />

2002<br />

R 2 = 0.0533<br />

Years<br />

Dissolved Oxygen<br />

Linear (Dissolved Oxygen)<br />

Biochemical Oxygen Demand<br />

Crane <strong>St</strong>rand (WBIDs 3014 & 3023)<br />

Seasonal Averages<br />

(colonies / 100 ml)<br />

10000<br />

8000<br />

6000<br />

4000<br />

2000<br />

0<br />

R 2 = 0.0263<br />

1991<br />

1992<br />

1993<br />

1994<br />

1995<br />

1996<br />

1997<br />

1998<br />

1999<br />

2000<br />

Years<br />

Total Coliform Bacteria<br />

Linear (Total Coliform Bacteria)<br />

Crane <strong>St</strong>rand (WBIDs 3014 & 3023)<br />

Seasonal Averages<br />

(colonies / 100 ml)<br />

2800<br />

2400<br />

2000<br />

1600<br />

1200<br />

800<br />

400<br />

0<br />

1991<br />

1992<br />

Fecal Coliform Bacteria<br />

1993<br />

1994<br />

1995<br />

1996<br />

1997<br />

Years<br />

R 2 = 0.0206<br />

1998<br />

1999<br />

2000<br />

2001<br />

2002<br />

Linear (Fecal Coliform Bacteria)<br />

Figure F.1: Water Quality Trends in Crane <strong>St</strong>rand (WBIDs 3014 & 3023)

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