California Surface Impoundments regulations & environmental compliance analysis

California Surface Impoundments: What you need to know

Governing Law and Regulations

Surface impoundment rules: 22 California Code of Regulations (CCR) 66264.220 to 66264.232, 22 CCR 66265.220 to 66265.231 (interim status), and Toxic Pits Cleanup Act of 1984, California Health and Safety Code (CH & SC) 25208 to 25208.17

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Organic air emissions standards: 22 CCR 66264.1030 to 66264.1090, 22 CCR 66265.1030 to 66265.1090, and {LNK!Type=03!RegscanDoc=db=caenvr&doc=015405BG.htm#Appendix I!}Appendix I{/LNK!Type=03!} (interim status)

Liners and leachate collection system: CH & SC 25208.5(a) and 22 CCR 66264.221

Location prohibition: CH & SC 25208.4(a)

Annual inspections: CH & SC 25208.7(a)

Regulatory Agency

California Environmental Protection Agency (Cal/EPA) Department of Toxic Substances Control (DTSC) Hazardous Waste Management Program

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Surface impoundment owners and operators in California are required to comply with both the federal rules and the state's additional standards for facility permits and fees, liner and leachate collection systems, location prohibition, inspections, and closure and post-closure.

Administration and enforcement. Cal/EPA's DTSC administers and enforces the surface impoundment requirements in California, including the federal air emissions standards.

State Requirements


Hazardous waste treatment, storage, and disposal facilities (TSDFs) in California that use surface impoundments must be permitted in accordance with a very complicated state permitting system and must pay various state permit and facility fees. The state's permit application ...

Read more about Surface Impoundments