California Underground Injection Wells: What you need to know

Governing Law and Regulations

Federal authority: 40 CFR 147.251

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Toxic Injection Well Control Act: California Health & Safety Code (CH & SC) 25159.10 to 25159.25 and regulations at 22 California Code of Regulations (CCR) 66260.10

Definitions: CH & SC 25159.12

Permits: CH & SC 25159.15 to 25159.18

Inspection, testing, and monitoring: CH & SC 25159.17 and CH & SC 25159.21

Migration, continuation, and closure: CH & SC 25159.16

Facility fees: CH & SC 25159.19 and CH & SC 25205.7

Oil, gas, and geothermal wells: 14 CCR 1724.6, 14 CCR 1724.10, 14 CCR 1748.1 to 1748.3, and 14 CCR 1900 to 1967

Class II wells: 14 CCR 1724.6, 14 CCR 1724.10, and 14 CCR 1748.1 to 1748.3

Geothermal injection wells: 14 CCR 1900 to 1967

Regulatory Agencies

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

California Department of Conservation

Division of Oil, Gas, and Geothermal Resources (DOGGR)

U.S. Environmental Protection Agency (EPA) Region 9

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. California has been granted partial delegation for the regulation of Class II wells and for geothermal injection wells in the state. All other injection wells are regulated by the U.S. Environmental Protection Agency (EPA) in California. See the national section UNDERGROUND INJECTION WELLS for information about the federal requirements and the various classes of injection wells.

However, because the California Legislature believes that the federal system of regulating toxic injection wells is inadequate to protect the state's drinking ...

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State Requirements

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California Underground Injection Wells Resources

Underground Injection Wells Products

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