Facility Site ID: 46584958 Cleanup Site ID: 6136

Cleanup Complete

The Hico Store 648 no longer sells gas.
The Hico Store 648 no longer sells gas.

Petroleum contamination at the Hico Store 648 was cleaned up in 2009. The 0.7-acre site is now a convenience store building and parking lot.

The former fuel distribution system consisted of two 10,000-gallon gasoline fuel underground storage tanks, three gasoline fuel dispensers, and associated underground piping. Fuel is no longer sold, and all tanks, dispenser islands, and canopies were removed in 2002. 

Soil and groundwater contamination were found at the site. All contaminated soil requiring cleanup was excavated. Some groundwater contamination remains, but it is limited to the shallow aquifer and does not extend off the property. An environmental covenant was filed in 2009 restricting the use of groundwater under the property and warning any future owners of its existence.

Periodic Reviews

Ecology staff visited the site August 16, 2023, and August 8, 2017, for to complete periodic reviews and found that the cleanup remains effective. No new excavation or ground disturbance has occurred, and no new wells have been drilled.

We will visit the site again in five years for the next periodic review.

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.

Environmental Covenant

County Recording #: 696137
County Recording Date: 11/4/2009


  • Prevent the Reuse or Relocation of Site Soil
  • Prohibit Removal or Alteration of Existing Buildings
  • Prohibit Soil Disturbance
  • Restrict Land Use

Restricted Media

  • Soil
Legal 1
Document Title Document Date Document Type
Hico Store 648 - Environmental Covenant 11/4/2009 Environmental Covenant; Alternative Mechanism
Technical Reports 2
Document Title Document Date Document Type
Second Periodic Review: Hico Store 648 9/13/2023 Periodic Review (5 Year)
Hico Store 648 - Periodic Review 9/25/2017 Periodic Review (5 Year)
Voluntary Cleanup Program 1
Document Title Document Date Document Type
Hico Store 648 - VCP NFA Letter 12/1/2009 VCP Opinion on Site Cleanup – NFA
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

  • Eastern Regional Office
    N 4601 Monroe St
    Spokane, 99205-1265
    Please schedule an appointment to view print documents at this location.

Contaminants 1

Contaminant Type
Surface Water
Non-Halogenated Organics - Petroleum-Other R C
Confirmed Above Cleanup Levels
Below Cleanup Levels
This contaminant list was based on our best information at the time it was entered. It may not reflect current conditions at the site.