Sunfair Chevrolet Inc
Site Description
Cleanup Activities
Sample Number 6 was collected beneath the concrete slab apron at the entrance to the facility. TPH-O (oil) was detected above MTCA Method A cleanup levels. However, since the consultant considered the environmental threat to be minimal, the residual petroleum contaminated soil was left in place to prevent disturbance to site operations. The environmental threat was determined to be minimal by the consultant due to the lack of petroleum contamination in groundwater, and the isolation of the contaminated soil by the concrete slab above. The petroleum-contaminated soil excavated from Tank 3 was reportedly stored on adjacent property for remediation by land farming.
In an attempt to reduce the level of methylene chloride contamination found in the Tank 5 excavation pit, the excavation was left open for several weeks to allow the methylene chloride to volatilize. No sources were identified for the methylene chloride contamination.
An institutional control was imposed to prevent exposure to hazardous substances remaining at the site. The institutional control consists of a surface cap formed by building foundations and a concrete pad or asphalt pavement over the area of concern. To ensure protectiveness of the remedy, an environmental covenant was recorded to prohibit or limit activities that would interfere with the integrity of the surface cap.
Cleanup Complete
Periodic Review
Periodic review results
Based upon the site visit conducted in March 2021, the site continues to operate as an auto dealership and repair facility.
The cleanup actions completed at the site appear to be protective of human health and the environment.
Soil cleanup levels have not been met at the site; however, the cleanup action is determined to comply with cleanup standards under WAC 173‐340‐740(6)(f), since the long‐term integrity of the containment system is ensured and the requirements for containment technologies have been met.
The environmental covenant for the property is in place and is expected to be effective in protecting public health and the environment from exposure to hazardous substances and protecting the integrity of the cleanup action.
If the existing structures be removed or replaced, contaminated soils beneath the site must be remediated.
Based on the periodic review, Ecology has determined the restrictions in the environmental covenant are being observed. No additional remedial actions are required by the property owner. It is the property owner’s responsibility to continue to inspect the site to assure that the integrity of the site surface is maintained.
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.
Site use restrictions called institutional controls are in effect
Institutional controls can be fences, signs, or restrictions on how the property is used. For instance, an institutional control may prohibit installing drinking water wells or disturbing a protective cap that isolates contamination. These restrictions keep the contamination contained and keep people from being exposed to the contamination. The controls are usually listed in environmental covenants recorded with the county.
Periodic reviews are required when institutional controls are required at a site. Ecology conducts reviews to make sure the controls remain effective and the cleanup still protects human health and the environment. We conduct periodic reviews about every five years.
Institutional Controls 1
Environmental Covenant
Restrictions/Requirements
- Ongoing Maintenance of Remedy
- Prohibit Soil Disturbance
Restricted Media
- Soil
Documents 11
Legal 1
Document Title | Document Date | Document Type |
Sunfair Chevrolet Environmental Covenant | 9/17/2014 | Environmental Covenant; Alternative Mechanism |
Leaking Underground Storage Tank 1
Document Title | Document Date | Document Type |
Sunfair Chevrolet Site Assessment Engineering Report | 12/1/1998 | LUST - Site Assessment Report |
Technical Reports 5
Document Title | Document Date | Document Type |
Sunfair Chevrolet Inc. - Notice of 1st Periodic Review | 11/15/2021 | Site Specific Administrative Document - other (Administrative correspondence) |
Sunfair Chevrolet 2021 Periodic Review | 4/1/2021 | Periodic Review (5 Year) |
Sunfair Chevrolet PCB results | 7/14/2014 | Site Specific Technical Document - other |
Sunfair Chevrolet corrected analyticals | 6/23/2014 | Site Specific Technical Document - other |
Sunfair Chevrolet Final Report Site Assessment, Remedial Investigation and Conclusion | 5/1/2014 | Site Specific Technical Document - other |
Voluntary Cleanup Program 4
Document Title | Document Date | Document Type |
Sunfair Chevrolet - VCP Opinion on Site Cleanup - No Further Action | 2/10/2015 | VCP Opinion on Site Cleanup – NFA |
Sunfair Chevrolet - VCP Opinion on Site Cleanup - Further Action | 7/9/2014 | Voluntary Cleanup Program Opinion – Other |
Sunfair Chevrolet - VCP Opinion on Proposed Site Cleanup - Further Action Likely | 9/19/2013 | Voluntary Cleanup Program Opinion – Other |
Sunfair Chevrolet - VCP Opinion on Proposed Site Cleanup - Further Action Likely | 8/30/2013 | Voluntary Cleanup Program Opinion – Other |
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 4
Contaminant Type | Soil |
Groundwater |
Surface Water |
Air |
Sediment |
Bedrock |
---|---|---|---|---|---|---|
Halogenated Organics - Halogenated Solvents | RB | |||||
Metals - Arsenic | RA | |||||
Metals - Lead | RA | |||||
Non-Halogenated Organics - Petroleum-Other | RA | B |
- S
- Suspected
- C
- Confirmed Above Cleanup Levels
- B
- Below Cleanup Levels
- RA
- Remediated-Above
- RB
- Remediated-Below
- R
- Remediated