7 Eleven 25821
Facility Site ID:
77113577
Cleanup Site ID:
6650
Site Description
The site currently operates as a restaurant. The site formerly operated as a gas station and convenience store.
In February 1989, three 10,000-gallon leaded- and unleaded-gasoline underground storage tanks (USTs) were removed from the property. Soil samples from showed gasoline and benzene, toluene, ethylbenzene, and xylene (BTEX) contamination remained under the former USTs above state cleanup levels. Groundwater samples showed gasoline and BTEX contamination as well.
In February 1989, three 10,000-gallon leaded- and unleaded-gasoline underground storage tanks (USTs) were removed from the property. Soil samples from showed gasoline and benzene, toluene, ethylbenzene, and xylene (BTEX) contamination remained under the former USTs above state cleanup levels. Groundwater samples showed gasoline and BTEX contamination as well.
Cleanup Activities
Soil over-excavation and removal occurred during tank decommissioning. Contaminated soil
remaining on-site was treated with oxygen injections used to help with biodegradation. Soil sampling conducted between 2004 and 2015 demonstrated that cleanup was effective.
Groundwater monitoring was conducted between 1989 and 2020. Groundwater monitoring concluded when a minimum of four quarters of samples remained below MTCA cleanup levels.
remaining on-site was treated with oxygen injections used to help with biodegradation. Soil sampling conducted between 2004 and 2015 demonstrated that cleanup was effective.
Groundwater monitoring was conducted between 1989 and 2020. Groundwater monitoring concluded when a minimum of four quarters of samples remained below MTCA cleanup levels.
Voluntary Cleanup Program
This site was cleaned up under 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 the sites Ecology manages under legal orders.
Documents 0
No documents found.
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 3
| Contaminant Type | Soil |
Groundwater |
Surface Water |
Air |
Sediment |
Bedrock |
|---|---|---|---|---|---|---|
| Non-Halogenated Organics - Benzene | RB | |||||
| Non-Halogenated Organics - Petroleum-Diesel | RB | |||||
| Non-Halogenated Organics - Petroleum-Gasoline | RB | RB |
- 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.