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Surface Water - Alabama Department of Environmental Management

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Upper Black Warrior River (0316-0112)<br />

Hanna Mill Creek: Intensive water quality data were collected from Hanna Mill Creek at<br />

HNC-1 in May and July <strong>of</strong> 1999 (Appendix P-3). Conductivity was elevated during both<br />

sampling events. The concentrations <strong>of</strong> iron, manganese, and zinc were periodically<br />

elevated (Appendix P-4).<br />

Sub-watershed status: Since 1997, impaired macroinvertebrate communities were detected<br />

at locations on Davis Creek, Daniel Creek, and Pegues Creek. Intensive water quality<br />

sampling indicated high conductivity, total dissolved solids, and metals throughout the subwatershed,<br />

suggesting mining as the source <strong>of</strong> impairment. These results are supported by<br />

the 1998 SWCD sub-watershed assessments that estimated mining and sedimentation from<br />

mining to be the primary concerns within the sub-watershed. However, a roadside survey<br />

conducted in 1997 indicated the sub-watershed to be susceptible to NPS impairment from<br />

roadside erosion and silviculture.<br />

164

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