Governing Law and Regulations
Wisconsin Department of Natural Resources (DNR) Division of Water
DNR Laboratory Certification and Registration Program
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 regulations allow DNR to establish whole effluent toxicity (WET) limitations and to require bioassays and biomonitoring when necessary to meet water quality standards. The state generally follows the federal regulations for WET testing and also has some additional requirements for laboratory certification. See the national section BIOASSAYS/BIOMONITORING for additional information about the federal requirements.
• Administration and enforcement. DNR's Division of Water administers and enforces the state's water quality management program, including for WET testing. DNR's Laboratory Certification and Registration Program oversees the enforcement of the laboratory certification regulations.
Under the Wisconsin Pollutant Discharge Elimination System (WPDES) permit program, two types of effluent limits are established: categorical effluent limits and water quality-based effluent limits.
Categorical effluent limits are based on technology standards, such as the kind of technology that can achieve pollution control. ...