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Chapter 1 Minimum Flows and Levels - Southwest Florida Water ...

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Braden River near Lorraine, FL<br />

Nitrite+Nitrate N (mg/l N<br />

0.16<br />

0.14<br />

0.12<br />

0.1<br />

0.08<br />

0.06<br />

0.04<br />

0.02<br />

0<br />

Jan-60 Dec-69 Dec-79 Dec-89 Dec-99<br />

Braden River near Lorraine, FL<br />

Nitrite+Nitrate N (mg/l N<br />

0.16<br />

0.14<br />

0.12<br />

0.1<br />

0.08<br />

0.06<br />

0.04<br />

0.02<br />

0<br />

Jan-90 Dec-92 Dec-95 Dec-98 Dec-01 Dec-04<br />

Braden River near Lorraine, FL<br />

Nitrite+Nitrate N (mg/l N<br />

0.16<br />

0.14<br />

0.12<br />

0.1<br />

0.08<br />

0.06<br />

0.04<br />

0.02<br />

0<br />

0 50 100 150 200 250 300 350 400<br />

Flow (cfs)<br />

Figure 2-18. Nitrate or Nitrate/Nitrite concentrations in water samples collected by the<br />

USGS at the Braden River near Lorraine gage. Upper plot is time series plot; middle plot is<br />

time series plot with shorter time scale, <strong>and</strong> bottom plot is concentration versus flow.<br />

2-29

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