Revised National Pollutant Discharge Elimination System Permit Regulation and Effluent Limitations Guidelines for Concentrated Animal Feeding Operations in Response to the Waterkeeper Decision

Under the Federal Water Pollution Control Act (Clean Water Act or CWA), EPA is revising the National Pollutant Discharge Elimination System (NPDES) permitting requirements and Effluent Limitations Guidelines and Standards (ELGs) for concentrated animal feeding operations (CAFOs) in response to the order issued by the U.S. Court of Appeals for the Second Circuit in Waterkeeper Alliance et al. v. EPA, 399 F.3d 486 (2d Cir. 2005). This final rule responds to the court order while furthering the statutory goal of restoring and maintaining the nation's water quality by ensuring that CAFOs properly manage manure generated by their operations. This final rule revises several aspects of EPA's current regulations governing discharges from CAFOs. EPA is modifying the requirement to apply for a permit by specifying that an owner or operator of a CAFO that discharges or proposes to discharge must apply for an NPDES permit. The final rule also includes an option for an unpermitted CAFO to certify to the permitting authority that the CAFO does not discharge or propose to discharge. In addition, EPA is clarifying how the agricultural stormwater discharge exemption criteria are interpreted for unpermitted Large CAFOs. EPA is also requiring CAFOs seeking permit coverage to submit their nutrient management plans (NMPs) with their applications for individual permits or notices of intent to be authorized under general permits. Permitting authorities are required to review the NMPs and provide the public with an opportunity for meaningful public review and comment. Permitting authorities are also required to incorporate terms of NMPs as NPDES permit conditions. Additionally, this action removes the provision that allowed CAFOs to use a 100-year, 24-hour containment structure to fulfill the no discharge requirement for new source swine, poultry, and veal calf operations. Instead, this action authorizes permit writers, upon request by swine, poultry, and veal calf CAFOs that are new sourc