Regulations & Permits

Use this portal to filter and search for all of our regulatory information.

We oversee many state and federal laws designed to protect Washington's land, air, and water. See our laws, rules, & rulemaking page for more information about our current rules and rulemaking.

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PUREX Administrative Order

The Department of Ecology issued this Administrative Order (Order) requiring Department of Energy-Richland Operations Office and CH2M HILL Plateau Remediation Company to comply with WA codes and the Hanford RCRA permit.

https://ecology.wa.gov/20170510purexenforcement

Continued Response Actions to Partial Collapse of PUREX Tunnel 1

Due to the continued immediate threat to human health and the environment posed by the instability of PUREX Tunnel 1, Ecology approves grouting of PUREX Tunnel 1 as an interim stabilization measure.

https://ecology.wa.gov/20170608purexgroutresponse

Amended Administrative Order Docket #15419 amending Order Docket #14156

This amended order adds PUREX Tunnel 2 to the scope of Corrective Action 3 and provides additional time for USDOE-RL and CHPRC to complete Corrective Action 3.

https://ecology.wa.gov/20170915purexamendedorder

Supporting Documents - Ecology (PDF Portfolio)

Supporting Documents from Ecology

https://ecology.wa.gov/supporting-documents-ecology-pdf-portfolio

Transmittal Letter

Start of Public Comment Period for the Draft Hanford Site Air Operating Permit (AOP) Renewal 3

https://ecology.wa.gov/transmittal-letter-d05b7b46ed7eb953d4597627837c8259