Download a comprehensive list of federal and state funding and technical assistance opportunities for redeveloping brownfields in Washington.

The Eastern Washington Clean Sites Initiative funds cleanups to improve residents’ quality of life.

This document contains comments received from the public during the Exploratory Rulemaking process, from February 15 through May 11, 2018. These include comments provided through the online eComment system, by mail, by email, and on comment cards at the April 3rd listening session.

Plain text description of the Boeing Auburn groundwater contamination site map.

You must submit your lab data electronically through EIM.

Information for new Underground Storage Tank (UST) owners and installation of new tanks.

Information for underground storage tank (UST) service providers and for those looking to find one.

Approved laboratory analysis methods for cleaning up contaminated sites.

Methods for cleaning up sites contaminated with hardrock mining waste.

The EIM Data Analysis Tool (EDAT) compares data from Ecology's EIM database to cleanup criteria.

Get help preparing remedial investigations, feasibility studies, and cleanup action plans.

We have online tools and statistical packages to help you clean up contaminated sites.

Empirical demonstrations can show that applicable groundwater cleanup levels aren’t being exceeded.

An online cleanup guide for homes and small business properties that might be contaminated.

We have a list of acronyms and terms commonly used in contaminated site cleanup work.

We have guidance that helps you evaluate and respond to vapor intrusion at your MTCA cleanup site.

Cleanup resources for underground storage tanks that have leaked petroleum products into the ground.

This is the rulemaking page for Chapter 173-340 WAC, Model Toxics Control Act Cleanup Regulations.

Guidance and tools for evaluating whether a cleanup option is the most permanent one practicable.