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CAFOs, water permits and NR 243
Compliance with Wisconsin's agricultural standards and prohibitions is required of all cropland and livestock operations in the state, regardless of size. Reducing or preventing manure or process wastewater pollution from agricultural operations…
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CAFO and CAFO WPDES permit statistics
Wisconsin is home to an increasing number of Concentrated Animal Feeding Operations (CAFOs). The Department of Natural Resources is pleased to offer you easy access to statistics and geographical information about Wisconsin's CAFOs and the…
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CAFO WPDES permits applications & NMPs in process
Wisconsin Pollutant Discharge Elimination System (WPDES) permits for Concentrated Animal Feeding Operations (CAFOs) are renewed every five years and may be modified, as needed, during the five-year permit term. Nutrient Management Plan (NMP) changes…
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Publications and resources for CAFOs and other agriculture operations
There are many resources for farmers and other agricultural operators that provide information and guidance about farming and the environment. In addition to the Department of Natural Resources, resources are available from other Wisconsin state…
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Plans & specifications for reviewable structures & systems
At least 90 days before beginning construction, existing or proposed Concentrated Animal Feeding Operations (CAFO) must submit plans and specifications for reviewable construction projects to the DNR for approval. DNR approval of these reviewable…
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Reissuance or modification of CAFO WPDES permits
At least 180 days prior to the expiration of your current WPDES permit for a CAFO, you are required to submit a complete reissuance application to the Department of Natural Resources (DNR). Before submitting your reissuance application, please…
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WPDES permit application materials, instructions, reporting & compliance documents
View required application materials if you are a proposed Concentrated Animal Feeding Operation (CAFO) applying for the first time for a WPDES permit or you are an existing CAFO applying for a renewal of your WPDES permit.Preliminary and final…
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Nutrient management planning
A Concentrated Animal Feeding Operation (CAFO) Water Pollutant Discharge Elimination System (WPDES) permit requires a field-specific, phosphorus-based nutrient management plan (NMP) that outlines the amounts, timing, locations, methods and other…
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Non-manure waste and agrichemicals
Agricultural businesses create many types of non-manure waste. Non-manure waste and agrichemicals must be handled in accordance with local, state and federal regulations so they don't pollute Wisconsin's natural resources. Working with our partners…
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Manure spills response, planning and prevention
Get help immediately if runoff or aspill occurs!Report manure spills immediately!Call our 24-hour spill emergency hotline: 1-800-943-0003.All agricultural or livestock operations, regardless of size, must report manure spills or runoff that may…