Facility Site ID: 15685336 Cleanup Site ID: 5586

Site Description

Former Chevron fueling station now a car wash and office building operates at the site - Photo courtesy of Google Streetview
Former Chevron fueling station now a car wash and office building operates at the site - Photo courtesy of Google Streetview
The Chevron 97348 Site (Site) is located at 500 and 510 N Wenatchee Avenue (formerly 502 N Wenatchee Avenue) at the west corner of the intersection of Fifth Street and North Wenatchee Avenue in Wenatchee.  Chevron operated a gasoline service station at the Site until 1990.  A gasoline release was reported in 1990.  All buildings, associated structures, fuel delivery equipment and dispensers were removed in 1991.  An office building and car wash are now operating at the Site. 

The Site is currently on Ecology’s Hazardous Sites List with a ranking of “2”.  Sites on the Hazardous Sites List are a priority for Ecology, and have completed a Site Hazard Assessment (SHA).  A SHA provides information about the environmental risk of the Site. Risk is based on the amount of contaminants, how toxic they are, and how easily they can come in contact with people and the environment.  Sites are ranked relative to each other on a scale of “1” to “5”; with a rank of “5” being the lowest.

Cleanup Activities

In 1990, an investigation was performed at the Site in prior to underground storage tank (UST) decommissioning.  Limited information is available regarding this investigation. Five soil borings were drilled at the Site; four of these borings were completed as groundwater monitoring wells.  Soil samples collected from the soil borings did not contain detectable concentrations of petroleum hydrocarbons.

In February 1991, three gasoline USTs, one used oil UST, one heating oil UST, and one UST of unknown use, as well as the product dispensers, fuel lines, and three hydraulic hoists were removed from the site.  Approximately 300-400 cubic yards of contaminated soils were removed from the Site.  Analytical results indicated that contaminants present in soils remaining onsite were below MTCA Method A cleanup levels.  In 2001, a Sub-surface Environmental Investigation was conducted.  Two soil borings were completed and soil samples were taken.  TPH and BTEX compounds were not detected above laboratory reporting limits.

Groundwater sampling has been conducted at this Site at various intervals since 1991, when five soil borings were advanced and four monitoring wells were installed. Sample results from the January 2006 event indicated petroleum contamination (TPH-G) above the MTCA Method A cleanup level.  Sample results the May 2005 sampling event indicated petroleum contamination (TPH-D and TPH-O) above MTCA Method A cleanup levels.

In April 2018, Ecology and Chevron U.S.A. entered into an Agreed Order for the completion of a Remedial Investigation, Feasibility Study, and Draft Cleanup Action Plan at the Site.

In May 2019, Ecology determined that the requirements of the Agreed Order has been satisfied and has been removed from Ecology's Hazardous Sites List.
Legal 2
Document Title Document Date Document Type
Chevron 97348 Agreed Order DE 15666 4/26/2018 Agreed Order
Chevron 97348 Final PLP Determination 11/29/2017 Final Potentially Liable Person Status Letter
Leaking Underground Storage Tank 1
Document Title Document Date Document Type
Chevron 97348 Site Assessment Rpt 12/1/1990 LUST - Site Assessment Report
Public Information 2
Document Title Document Date Document Type
Chevron 97348 Fact Sheet - Proposed Removal from the Hazardous Sites List 3/28/2019 Fact Sheet\Public Notices
Chevron 97348 AO fact sheet 4/26/2018 Fact Sheet\Public Notices
Technical Reports 11
Document Title Document Date Document Type
Chevron 97348 - Satisfaction of Agreed Order 5/7/2019 Site Specific Administrative Document - other (Administrative correspondence)
Chevron 97348 - Reppository Letter 3/26/2019 Site Specific Administrative Document - other (Administrative correspondence)
Chevron 97348 Fourth Quarter 2018 Groundwater Monitoring Report and Site Closure Request 12/27/2018 Groundwater Monitoring Report
Chevron 97348 30Day Notice of Potential Liability 9/8/2017 Site Specific Administrative Document - other (Administrative correspondence)
Chevron 97348 SHA Results Notification 1/6/2015 Site Specific Administrative Document - other (Administrative correspondence)
Chevron 97348 - Site Hazard Assessment 12/15/2014 Site Hazard Assessment Report
Chevron 97348 SHA Planned Notification 2/20/2014 Site Specific Administrative Document - other (Administrative correspondence)
Chevron 97348 2013 Annual Groundwater Monitoring Report 10/22/2013 Groundwater Monitoring Report
Chevron 97348 Soil and Groundwater Assessment Report 12/14/2007 Site Specific Technical Document - other
Chevron 97348 Subsurface Environmental Investigation 10/15/2001 Site Specific Technical Document - other
Chevron 97348 UST Closure Rpt 4/1/1991 Site Specific Technical Document - other
Voluntary Cleanup Program 1
Document Title Document Date Document Type
Chevron 97348 - VCP Opinion on Site Cleanup - Further Action 4/25/2006 Voluntary Cleanup Program Opinion – Other
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 Office
    1250 W Alder St
    Union Gap, 98903-0009
    Please schedule an appointment to view print documents at this location.

Contaminants 3

Contaminant Type
Soil
Groundwater
Surface Water
Air
Sediment
Bedrock
Non-Halogenated Organics - Petroleum-Diesel RB RB
Non-Halogenated Organics - Petroleum-Gasoline RB RB
Non-Halogenated Organics - Petroleum-Other 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.