Washington Underground Injection Wells regulations & environmental compliance analysis

Washington Underground Injection Wells: What you need to know

Governing Law and Regulations

Washington underground injection control (UIC) requirements: Washington Administrative Code (WAC) 173-218-010 to 173-218-115

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Nonendangerment requirements: WAC 173-218-090

Carbon sequestration: WAC 173-218-115

Large on-site systems: WAC 246-272B-01000 to 246-272B-09000

New construction approval: WAC 246-272B-02000 to 246-272B-02350

Fees: WAC 246-272-3000

Permit renewals: WAC 246-272B-02650

Operating permit requirements: WAC 246-272B-02700

Permit-by-rule: WAC 173-303-802(3)

Regulatory Agencies

Washington Department of Ecology (WDOE) Water Quality Program

Washington State Department of Health (DOH) Division of Environmental Health Office of Environmental Health and Safety Large On-Site Program

Washington Energy Facility Site Evaluation Council

U.S. Environmental Protection Agency (EPA) Region 10

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Washington has received primacy from the U.S. Environmental Protection Agency (EPA) to administer the state of Washington Underground Injection Control (UIC) Program for Class I, II, III, IV, and V underground injection wells. The EPA regulates Class VI wells and all wells located on Indian lands. The state has adopted the federal permit-by-rule option for underground injection wells, which is described in the national section UNDERGROUND INJECTION WELLS. Washington has developed its own regulations for certain on-site wastewater facilities and wells used to inject carbon dioxide for geologic sequestration that are classified as Class V injection wells.

Administration and enforcement. WDOE's Water Quality Program administers and enforces the ...

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