Washington Leak Detection regulations & environmental compliance analysis

Washington Leak Detection: What you need to know

Governing Law and Regulations

Air emissions: Washington Administrative Code (WAC) 173-400-040

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Dangerous waste containers: WAC 173-303-630

Dangerous waste storage tanks: WAC 173-303-640

Incinerator ash: WAC 173-306-440

Pesticides: WAC 16-229

Spill prevention: WAC 173-182-010 to 173-182-930

Underground injection wells: WAC 173-218-115

Underground storage tank (UST) rules: WAC 173-360-300 to 173-360-399

Used oil: WAC 173-303-515(6)

Regulatory Agency

Washington Department of Ecology (WDOE)

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Washington's leak detection requirements include federal rules and additional rules for air emissions, spill prevention, underground injection wells, underground storage tanks (USTs), and used oil facilities. The specific leak detection system standards vary depending on the type of unit or facility. 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 Washington's leak response and reporting requirements.

Administration and enforcement. The WDOE administers and enforces the leak detection rules in Washington.

State Requirements


WAC 173-400-040

The WDOE has established general requirements to control fugitive particulate matter and volatile organic compound (VOC) emissions, odor emissions, and noise. More specific requirements for chemical process fugitive emissions control are determined on a permit-by-permit basis. See the state section FUGITIVE EMISSIONS for additional information.


WAC 173-303-630

Washington's container rules ...

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Washington Leak Detection Resources

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