Coit Services
Status Update
This Site is in the Voluntary Cleanup Program (VCP).
Ecology received the Additional Investigation Report, Building C at Woodinville West Business Park on October 12, 2023. Ecology issued an opinion letter regarding the site on February 8, 2024.
Site Location
Where Did The Contamination Come From?
Coit Cleaners operated a dry-cleaning machine at the Site from 1999 to 2007. Samples show contamination is associated with a dry-cleaning machine which used tetrachloroethylene (PCE). PCE was also discovered to the north of the building around an oil-water separator in a loading dock.
As a result of use of PCE for dry cleaning, the site is contaminated with PCE and breakdown products cis-1,2-dichloroethene and vinyl chloride (collectively CVOCs). Contamination at the site was first found during investigations in 2019. Soil, groundwater, and soil vapor samples were all found to contain CVOCs above the levels allowed by Washington State’s cleanup law, the Model Toxics Control Act (MTCA). Surface water samples collected from the Sammamish River in August 2023 did not contain
CVOCs.
What Has Been Done So Far To Cleanup The Site?
Contaminants Of Concern
What Happens Next?
Model Toxics Control Act
The MTCA site cleanup process is completed in steps over a variable timeline.
Learn More How Ecology Is Protecting The Environment In Your Community
Report An Environmental Issue
Counties: Island, King, Kitsap, San Juan, Skagit, Snohomish, and Whatcom
Email: nwroerts@ecy.wa.gov
Phone: 206-594-0000
Requesting Accommodation
If you speak a non-English language, free language services are available.
Voluntary Cleanup Program
This site is in our Voluntary Cleanup Program, which provides technical help to owners of contaminated sites.
Voluntary Cleanup Program customers pay fees to cover our costs for technical help and reviewing cleanup reports. Sites in this program must meet the same cleanup standards as sites Ecology manages under legal orders.
Documents 15
Legal 1
Document Title | Document Date | Document Type |
Woodinville West Business Park - Early Notice Letter | 9/23/2022 | Early Notice Letter |
Technical Reports 10
Voluntary Cleanup Program 4
Document Title | Document Date | Document Type |
Coit Services - VCP Opinion on Injection Work Plan | 1/8/2025 | VCP Opinion on Site Cleanup – Other |
Coit Services - VCP Opinion on Additional Investigation | 8/29/2024 | VCP Opinion on Site Cleanup – Other |
Coit Services - VCP Opinion on RI/FFS | 2/8/2024 | VCP Opinion on Remedial Investigation |
Coit Services - VCP Acceptance Letter & Application Forms | 12/20/2023 | VCP Administrative Document |
Places to see print documents
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Northwest Regional Office15700 Dayton Ave NShoreline, 98133Please schedule an appointment to view print documents at this location.
Contaminants 1
Contaminant Type | Soil |
Groundwater |
Surface Water |
Air |
Sediment |
Bedrock |
---|---|---|---|---|---|---|
Halogenated Organics - Halogenated Solvents | C | C | B |
- S
- Suspected
- C
- Confirmed Above Cleanup Levels
- B
- Below Cleanup Levels
- RA
- Remediated-Above
- RB
- Remediated-Below
- R
- Remediated