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There are more than 900 water bodies on the 303(d) list in Idaho related to agricultural sediment issues, or 4,933 miles of streams statewide and American Falls Reservoir on the Snake River. The Conservation Commission plays a lead role in developing TMDL (Total Maximum Daily Load) Implementation Plans to reduce the amount of pollutants such as sediment, nutrients and bacteria associated with agricultural and grazing activities entering adjacent streams, lakes or rivers that are on the state 303(d) list of degraded waters. Commission staff determine the appropriate best management practices (BMPs) to reduce agricultural related pollutants and local Conservation Districts work with landowners to install those BMPs over time. The Commission works on TMDL Implementation Plans year-round as new TMDLs are approved by the federal government (and old ones are updated) frequently.
Completed TMDL Implementation Plans by Region.
A list of FY 2021 TMDL Implementation Plans Assigned to our staff is here.