South Dakota Department of Agriculture and Natural Resources

This Watershed Management Plan for the Spring Creek Watershed outlines strategies to restore beneficial water quality uses, specifically targeting compliance for fecal coliform bacteria and E. coli by 2021. The plan summarizes past accomplishments and details existing water quality, wildlife, on-site wastewater, stormwater, recreation, and grazing conditions. It proposes implementation practices, alternatives, and recommended priorities, emphasizing public outreach, and continuous monitoring to ensure the effective application of best management practices.

This strategic plan for the Vermillion River Basin aims to restore beneficial water uses by identifying pollutant sources and implementing Best Management Practices (BMPs). It focuses on reducing nutrient, sediment, and fecal coliform bacteria loadings, which are primarily attributed to agricultural activities. The plan details strategies to address identified impairments (dissolved oxygen, Total Suspended Solids, high pH, Chlorophyll-a, temperature, Escherichia coli, and fecal coliform bacteria) over a five-year period, with the goal of delisting impaired water bodies and supporting continued water use for various purposes including flood control, drinking, recreation, and wildlife.

This strategic plan outlines the direction for the Big Sioux River Watershed Implementation Project (BSRWIP) to improve water quality. It focuses on reviewing existing assessments, identifying pollutant sources like Chlorophyll-a, Escherichia coli, Fecal Coliform Bacteria, Total Suspended Solids, and Mercury, and implementing Best Management Practices (BMPs). The plan aims to achieve the delisting of 303(d) impaired water bodies by reducing nutrient, sediment, and fecal coliform bacteria loadings, thereby ensuring the continued use of water bodies for various purposes including flood control, drinking water, and recreation.

The Northeast Glacial Lakes Strategic Plan aims to identify pollutant sources and implement Best Management Practices (BMPs) over a five-year period to improve and protect the water quality of northeast South Dakota lakes. The plan focuses on delisting impaired water bodies by reducing bacteria, nutrient, and sediment loads, while preserving water bodies for various uses such as flood control, drinking water, recreation, commerce, and wildlife. Key management measures include animal waste and nutrient management, prescribed grazing, residue and tillage management, streambank stabilization, and wetland restoration.

The Central Big Sioux River Watershed Water Quality Master Plan guides efforts to improve water quality and bring impaired reaches into compliance with designated standards across its 1.28 million-acre project area. It utilizes a watershed-scale decision-support model to prioritize Best Management Practices (BMPs) focusing on geographic areas, land uses, and implementation practices. The plan addresses E. coli bacteria and sediment impairments through a recommended 10-year adaptive implementation schedule, aiming for cost-effective water quality improvements.