Protective Coatings Inc
Status
Ecology received the Cleanup Action Report on January 26, 2022. Ecology issued a Site Further Action Opinion on November 28, 2022.
Site Background
The Site is located at 1408 4th Avenue N and 1215 2nd Avenue N in Kent, WA (Property).The Property is located in an Industrial Zone at the north central portion of Kent, Washington. The Property is approximately 4.3 acres.
The Property is currently used as a metals plating facility. It consists of three large production floors which include:
- A packaging/shipping warehouse;
- general use warehouse; and
- outdoor wastewater treatment and chemical storage area.
Multiple investigations confirm contamination was released to the soil and groundwater prior to 2004. The contamination in soil and groundwater originated from releases of trichloroethylene (TCE) and metals in the chemical bunker area.
TCE naturally degraded over time resulting in the presence of the following by-products in soil and groundwater:
- 1,1 dichloroethylene (DCE);
- cis-1,2 DCE;
- 1,1 dichloroethane (DCA); and
- vinyl chloride
Groundwater samples collected from monitoring wells on the Site have also historically contained arsenic and hexavalent chromium above the cleanup level.
Cleanup Activities
Excavation of the impacted soil at the source area (Bunker 2). Approximately 307 tons of the soil were excavated from a 23-feet wide by 23-feet long by 9-to13 feet deep
excavation.
Fourteen soil samples were collected from the sidewalls and base of the excavation for
laboratory analysis. The analytical results indicated that TCE remained slightly above the cleanup level at northeast and southwest walls of the excavation.
In-situ chemical treatment (800 pounds 3-D Microemulsion) for the soil was applied to the base of the excavation prior to backfilling.
Groundwater samples were collected from monitoring wells after excavation. Vinyl chloride and arsenic remain above the cleanup levels in some monitoring wells.
All the excavated soil and groundwater were disposed off-site at a permitted facility.
Contaminants Of Concern
Air
- Trichloroethylene
Groundwater
- Arsenic
- Cis-1,2-dichloroethylene (DCE)
- Hexavalent chromium
- Vinyl chloride
- 1,1 DCE
- 1,1 DCA
Soil
- Arsenic
- Cadmium
- Chromium
- Trichloroethene (TCE)
- Cis-1,2-DCE
- Vinyl chloride
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
Ecology encourages cleanup of these sites to protect the health of people, plants, and animals. Cleanups are projects that remove, treat, or contain potentially harmful substances.
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
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 19
Technical Reports 8
Document Title | Document Date | Document Type |
Protective Coatings - NW2843 - Site Investigation Work Plan | 5/22/2023 | Site Specific Technical Document - Other |
Cleanup Action Report | 1/26/2022 | Remedial Action Report |
Clean Action Report | 1/26/2022 | Remedial Action Report |
Protective Coatings Inc—NW2843 Cleanup Action Report | 1/26/2022 | Site Specific Technical Document - Other |
Protective Coatings Inc - Excavation Summary Report | 11/20/2018 | Remedial Action Report |
Protective Coatings - Cleanup Action Work Plan | 8/1/2017 | Cleanup Action Plan |
Protective Coatings Inc - Cleanup Status Report | 3/9/2017 | Site Specific Technical Document - Other |
Protective Coatings - Remedial Investigation Report | 8/6/2015 | Remedial Investigation Report |
Voluntary Cleanup Program 11
Places to see print documents
-
Northwest Regional Office15700 Dayton Ave NShoreline, 98133Please schedule an appointment to view print documents at this location.
Contaminants 3
Contaminant Type | Soil |
Groundwater |
Surface Water |
Air |
Sediment |
Bedrock |
---|---|---|---|---|---|---|
Metals - Metals - Other | B | B | ||||
Halogenated Organics - Halogenated Solvents | C | C | ||||
Metals - Arsenic | B | C |
- S
- Suspected
- C
- Confirmed Above Cleanup Levels
- B
- Below Cleanup Levels
- RA
- Remediated-Above
- RB
- Remediated-Below
- R
- Remediated