Governing Law and Regulations
Wisconsin Department of Natural Resources (DNR) Division of Water
U.S. Environmental Protection Agency (EPA) Region 5
See ADDRESSES & CONTACTS for addresses and telephone numbers.
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Wisconsin generally follows the federal effluent limitations guidelines for discharges to state water; however, Wisconsin also relies heavily on water-quality-based effluent limitations, and the state's requirements are generally complex compared with the federal rules. Wisconsin has also imposed a set of phosphorus water quality standards for lakes, reservoirs, and the Great Lakes, and procedures for determining and incorporating phosphorus water-quality-based effluent limitations into Wisconsin Pollutant Discharge Elimination System (WPDES) permits. See the national section EFFLUENT LIMITATIONS for more information about the federal rules.
• Administration and enforcement. DNR's Division of Water administers and enforces the state's water quality rules and effluent limitations under the WPDES permit program.
When DNR receives an application for the state's WPDES wastewater discharge permit, DNR prepares a draft permit after an internal review of the ...