Appendix K of the Sediment Cleanup User's Manual (SCUM II) contains spreadsheets to use as a resource for calculating risk-based concentrations for sediment and tissue. These are used in conjunction with the recommended exposure parameters in SCUM II's Chapter 9.

A January 2018 notice of our exploratory process and timeline for updating Washington's Cleanup Rule.

Slides for the Cleanup Rule's statewide scoping session on Tuesday, April 3, 2018.

This is a rulemaking proposal (CR-102) for WAC 173-350 Solid Waste Handling Standards

This is proposed rule language for WAC 173-350 Solid Waste Handling Standards.

Facilities that store, treat, or dispose of dangerous waste must have a dangerous waste permit.

Businesses can get free, non-regulatory pollution prevention help from local PPA specialists.

Get pollution prevention technical assistance for your medium or large business.

We have a list of approved vendors who provide UST operator training in Washington.

Millennium proposed a coal export terminal at the former Reynolds smelter in Cowlitz County.

Imperium Terminal Services proposed expanding its existing transport facility in Hoquiam.

Contanda, formerly Westway Terminal, proposed an expansion of the Grays Harbor methanol terminal.

A glossary for terms and acronyms in CLARC's resource pages.

Learn how to reduce cleanup costs by requesting approval under our contained-in policy.

This 2013 technical support document estimates how much fish Washington residents are eating.

The current status of environmental reviews for two oil-related proposals in Grays Harbor.

Use these guidance documents in combination with CLARC to establish cleanup levels.

View the compliance and enforcement authority we have, and what actions we have recently taken.