Wisconsin Hazardous Waste Storage regulations & environmental compliance analysis

Wisconsin Hazardous Waste Storage: What you need to know

Governing Law and Regulations

Storage facility fees and licensing requirements: Wisconsin Administrative Code, Department of Natural Resources (NR) 670.001 to 670.433 and Appendices

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Container requirements: NR 664.0170 to 664.0179 and NR 665.0170 to 665.0178 (interim status)

Hazardous waste storage tank requirements: NR 662.194, NR 664.0190 to 664.0200, and NR 665.0190 to 665.0202 (interim status)

Surface impoundment requirements: NR 664.0220 to 655.0232 and NR 665.0220 to 665.0231 (interim status)

Containment buildings: NR 664.1100 to 664.1102 and NR 665.1100 to 665.1102 (interim status)

On-site storage rules for generators:

On-site storage rules for large quantity generators (LQGs): NR 662.034

On-site storage rules for small quantity generators (SQGs): NR 662.192 and NR 662.194

On-site storage rules for very small quantity generators (VSQGs): NR 662.220

Regulatory Agency

Wisconsin Department of Natural Resources (DNR) Division of Air and Waste Bureau of Waste and Materials Management Hazardous Waste Prevention and Management Section

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Although Wisconsin has adopted the federal hazardous waste storage rules, the state has added several more stringent rules. The state's more stringent hazardous waste storage rules apply to licensing permitted storage facilities and on-site accumulation of hazardous waste by small quantity generators (SQGs) and very small quantity generators (VSQGs).

Administration and enforcement. DNR's Bureau of Waste and Materials Management administers and enforces the hazardous waste storage rules in Wisconsin.

State Requirements


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