Rainier Plastics
Facility Site ID:
455
Cleanup Site ID:
3754
Site Background
Rainier Plastics operated a cooling system at their plant during the late 1980s. The cooling system included a water supply well and an injection well in a closed-loop system (also known as a non-contact cooling system). The solvent tetrachloroethene (PCE) was detected in both the supply water from the well and in the injection well water.
At the time, the PCE was thought to originate from Rainier Plastics. After further investigation, Ecology concluded that the use of PCE was not part of the Rainier Plastic operations, and the contamination likely came from a different, existing cleanup site called Frank Wear Cleaners.
At the time, the PCE was thought to originate from Rainier Plastics. After further investigation, Ecology concluded that the use of PCE was not part of the Rainier Plastic operations, and the contamination likely came from a different, existing cleanup site called Frank Wear Cleaners.
What Has Been Done
Rainier Plastics has recycled scrap plastic materials since 1967. A cooling system that operated at their plant during the late 1980s included a water supply well and an injection well in a closed loop system (also known as a non-contact cooling system).
The solvent tetrachloroethylene (PCE) was detected in both the supply water from the well and in the injection well water. At the time the site was created, the source of the PCE in the groundwater was unknown.
The PCE in groundwater at the site has now been determined to be from an off-site source (a former dry cleaner).
Rainier Plastics has not used PCE and has not contributed to the PCE found in groundwater at the site and at surrounding properties.
Ecology determined that no further action was required at the site. The site was removed from the Hazardous Sites List in December 2023.
The solvent tetrachloroethylene (PCE) was detected in both the supply water from the well and in the injection well water. At the time the site was created, the source of the PCE in the groundwater was unknown.
The PCE in groundwater at the site has now been determined to be from an off-site source (a former dry cleaner).
Rainier Plastics has not used PCE and has not contributed to the PCE found in groundwater at the site and at surrounding properties.
Ecology determined that no further action was required at the site. The site was removed from the Hazardous Sites List in December 2023.
Documents 2
Legal 1
| Document Title | Document Date | Document Type |
| Rainier Plastics - No Further Action | 6/28/2019 | NFA Letter – non-VCP |
Public Information 1
| Document Title | Document Date | Document Type |
| Rainier Plastics - Delisting Fact Sheet | 12/1/2023 | Fact Sheet\Public Notices |
There may be more documents related to this site. To obtain documents not available electronically, you will need to make a public records request.
Places to see print documents
-
Central Regional Office1250 W Alder StUnion Gap, 98903-0009Please schedule an appointment to view print documents at this location.
Contaminants 1
| Contaminant Type | Soil |
Groundwater |
Surface Water |
Air |
Sediment |
Bedrock |
|---|---|---|---|---|---|---|
| Halogenated Organics - Halogenated Organics | B |
- S
- Suspected
- C
- Confirmed Above Cleanup Levels
- B
- Below Cleanup Levels
- RA
- Remediated-Above
- RB
- Remediated-Below
- R
- Remediated
This contaminant list was based on our best information at the time it was entered. It may not reflect current conditions at the site.