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See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Wisconsin's rules include the federal leak detection rules and several more stringent state requirements for aboveground storage tanks (ASTs) and underground storage tanks (USTs), air emissions, containers, landfills, and surface impoundments. See the national section LEAK DETECTION for a discussion of federal leak detection requirements. In addition, refer to the state section RELEASE NOTIFICATION to review Wisconsin's leak response and reporting requirements.
Wisconsin follows the federal hazardous waste container rules, including the requirement that containers holding hazardous waste must be inspected For information on container containment system requirements, see the national section CONTAINERS.
All hazardous waste landfills and surface impoundments must have a leak detection system as part of their liner system. At present, Wisconsin has no commercial surface impoundments that accept hazardous waste. See the national section SURFACE IMPOUNDMENTS for additional guidance.