Wisconsin Oil Spill Response regulations & environmental compliance analysis

Wisconsin Oil Spill Response: What you need to know

Governing Law and Regulations

Reporting requirements: Wisconsin Administrative Code, Department of Natural Resources (NR) 706.05

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De minimis exemptions: NR 706.07

Regulatory Agency

Wisconsin Department of Natural Resources (DNR) Division of Air and Waste Remediation and Redevelopment Program

To report a spill, contact DNR's Spill Reporting Hotline at 800-943-0003 (available 24 hours)

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Wisconsin has promulgated state regulations that address hazardous spills, including oil spills.

Administration and enforcement. DNR's Remediation and Redevelopment Program administers the state requirements for oil spills and subsequent remediation in Wisconsin.

State Requirements


NR 706.05

Unless an exemption applies, persons who cause a discharge of a hazardous substance to the environment or who possess control of a hazardous substance that is discharged to the environment must immediately notify DNR of the discharge by telephone, facsimile, or by visiting a DNR office during normal business hours. After normal business hours, responsible persons should call DNR's 24-hour hotline telephone number. Nonemergency spills may be reported by e-mailing or faxing a completed copy of the Notification Form for Hazardous Substance Discharge, a copy of which can be accessed in Forms in this section.

The following information is required in a spill notification:

  • Name, address, and telephone number of the person reporting the discharge
  • Name, address, and telephone number of the discharger, or owner and operator of the underground storage tank (UST), and ...

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