Notice: All Ecology offices remain closed to walk-in service due to COVID-19.
If you're dealing with contamination in your home or small business, these FAQs can help you find cleanup options and evaluate their costs and benefits.
The Model Toxics Control Act (MTCA) requires the person(s) who caused the contamination to clean it up. (RCW 70.105D, WAC 173-340) Any past or present involvement with a contaminated site could result in liability for cleanup. A "potentially liable person" can include:
Check out our soil sampling brochures.
Contact your local health department or district.
1. Review the Property Inspection Checklist for clues and evidence.
2. Clarify whether you're dealing with solid waste (garbage, junk, debris) or toxic/hazardous substances.
The type of cleanup varies greatly depending on the situation. Cleanups can range from simple and routine (like a small gas station spill) to large and complex (like those along the Lower Duwamish Waterway). Home and small business owners often choose to hire an environmental consulting firm to help complete a Voluntary Cleanup.
Find a qualified and reputable environmental or engineering contractor:
What contractors can do for you: Citizen's Guides to Cleanup Methods links to 21 fact sheets that describe common cleanup methods from activated carbon treatment to vertical engineered barriers. (Available in English and Spanish.)
What you can do with Ecology’s help: Check our Cleanup Options and Voluntary Cleanup Program pages.
What you can do yourself: Visit small spill cleanup guide for ideas.
Our role varies depending on your situation and the choices you make. We prefer to work cooperatively with people to achieve cleanup solutions.
Cleaning up contamination can be costly, and costs can vary greatly from one situation to the next. Some costs you might incur include:
If you qualify, financial assistance may be available through:
Small business owners with registered heating oil tanks can visit Pollution Liability Insurance Agency. They have details about their commercial Underground Storage Tank program, including financial responsibility, reinsurance, loans, and grants.
Property owners may also try to recover costs from other liable parties (called "private right of action"). We suggest consulting an environmental attorney before pursuing this option.
If an environmental consultant or contractor is helping you, the contractor should dispose of the hazardous materials responsibly. Otherwise, consult: