Weeks Bay Watershed Project Management Plan - Mobile Bay ...

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Table 6. Greater Than 10% Potential Water Quality Violations of Fish and Wildlife
Standards for Bacteria in Weeks Bay Watershed.
Data Collector Site Code Location # Violations # of Samples
Fecal Coliform
Geological Survey of Alabama 1 8-A Caney Branch near Highway 104 9 58
9 Fish River at Highway 90 5 59
10 Corn Branch at County Road 64 6 59
13 Weeks Creek at County Road 26 5 48
# Violations # of Samples
E. coli
Weeks Bay Water Watch 2 V5 Fish River at Highway 90 1 5
V7 Magnolia River 30 yards east of County Road 49 1 6
V15 Fish River at County Road 54 1 11
V16 Perone Branch at County Road 54 2 12
V18 Cowpen Creek at County Road 27 1 6
V26 Weeks Creek at Bay Road East 2 12
V36 Weeks Bay at Bay Haven subdivision 1 11
1
2
Jan, 1994- Dec, 1998, Fecal Coliform enumeration by Membrane Filtraton, SM9222D, 19th Edition.
May, 1999- May, 2000, E. coli enum eration by COLISCAN EASYGEL (Micrology Labs, Goshen, IN)
Weeks Bay Water Watch volunteers test for E. coli at 12 sites in the
Watershed. Because ADEM uses fecal coliform testing as an
indicator of bacterial water quality, the volunteer E. coli enumerations
cannot be used to monitor potential violations. The Weeks Bay
Water Watch data are used to officially identify areas of possible
bacterial contamination in the Watershed. The EPA recommends
250 colonies per 100 ml sample limit for E. coli for states that utilize
E. coli as the bacterial indicator for Alabama water quality standards.
Table 6 shows seven sites where Weeks Bay Water Watch volunteers
have documented E. coli concentrations greater than 250 colonies per
100 ml.
2. Metals in the water column, sediment and in fish tissue
are potential threats to human health.
The potential sources of metal enrichment within the Weeks Bay
Watershed include but are not limited to, day-to-day operation of
Weeks Bay Watershed Management Plan