Iowa HSB657 requires the Department of Natural Resources to identify animal sources of pollutants in impaired waters.
Iowa HSB657 mandates the Department of Natural Resources to analyze and specify the animal sources contributing to pollution in impaired waters. When compiling the 303(d) list of impaired waters, the department must conduct an analysis, potentially using microbial source tracking, to designate by percentage each animal species contributing to the impairment. This requirement applies to waters impaired by fecal indicator bacteria.
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