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Middle 3 Rouge Storm Water Management Area
Hydrology. At Inkster Road (US2) the mean streamflow
recorded in 2002 was one of the three lowest recorded since 1994 and at Hines/Ford
(D06) the mean streamflow was the lowest recorded since 1994. The mean streamflow
at Inkster Road (US2) was 72 percent of the 1994 through 2001 average and
at Hines/Ford (D06) the mean streamflow was 57 percent of the 1994 through 2001
average. At
both stream gages in the Middle 3 (US2 and D06), the mean streamflow during
the 2000 monitoring period remained the highest of any year recorded since 1994. In
the Middle 3 since 1994, 2000 remained the wettest season on record and 2002
was the driest season on record. The precipitation total in 2002 was 62 percent
of the
long-term average precipitation total for 1994 through 2001.
 
Water Quality. Continuous
DO and water temperature monitoring has been preformed in the Middle
3 SWMA at Hines Drive near Ford Road (D06) since 1994. DO concentrations
have been poor at this location with the DO frequently dropping below
the State water quality standard of 5 mg/L, particularly during wet
weather conditions. Trend analysis results show an improving trend
for both wet and dry weather conditions with substantial improvement
in 2002 when the mean DO increased by nearly 1.0 mg/L from previous
years and the percent of values greater that the State standard of 5
mg/L was 99 percent. Continuous temperature monitoring did not
exceed a maximum temperature of 29.4°C
(85 °F).

E. coli. In general, E. coli bacteria
levels have been poor in the Middle 3 where a substantial percentage of measurements
taken since 1994 have been above the State water quality standards for both total
and partial body contact recreation. Overall, concentrations of E. coli bacteria are improving
in the Middle 3 SWMA, particularly during wet weather. Although improving,
several locations are still not meeting the State water quality standards for partial
body contact recreation.
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