Duvall Market

15802 Main St Duvall, King County
Facility Site ID: 7646431 Cleanup Site ID: 499

  • Site Status

  • No Further Action

More about cleanup

Status Update

In 2016 three monitoring wells were installed to evaluate the status of the ground water. Ground water was encountered at depths from 45-60 feet below ground surface. No gasoline related contaminants were detected in the ground water.

Soil impacted with total petroleum hydrocarbons in the gasoline range (TPH-G) above state cleanup levels (Method A cleanup levels) remains in the southwest corner of the Property and extends to the western and southern right- of- ways and beneath Main Street. The contamination appears to be limited to a depth of up to 8 feet below ground surface. 

Site Background

Property Uses:  The Property consists of a single split-level 6,744-square foot building on the north half of the Property and parking space in a mixed land use zone.  The Property is the location of a convenience store (Duvall Market).

Sources of contamination: The source of contamination on the Property is two former gasoline underground storage tanks (USTs) that reportedly last operated in 1976.  The USTs had storage capacities of approximately 675 and 4,000 gallons. They were both decommissioned in 2002. 

Contaminants Of Concern

Soil: Total petroleum hydrocarbons in the gasoline range (TPH-G) and benzene.

Ground water:  No contaminants have been detected in the ground water.

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.

Places to see print documents
Technical Reports 2
Document Title Document Date Document Type
Duvall Market - Terrestrial Ecological Evaluation 8/31/2016 Terrestrial Ecological Evaluation
Duvall Market - Remedial Investigation Report 4/11/2016 Remedial Investigation Report
Voluntary Cleanup Program 6
Document Title Document Date Document Type
Duvall Market - No Further Action 9/26/2016 VCP Opinion on Site Cleanup – NFA
Duvall Market - Opinion on Remedial Investigation Report 5/26/2016 Voluntary Cleanup Program Opinion – Other
Duvall Market - Opinion on Proposed Remedial Action 12/23/2015 Voluntary Cleanup Program Opinion – Other
Duvall Market - Opinion on Proposed Remedial Action 9/23/2015 Voluntary Cleanup Program Opinion – Other
Duvall Market - Further Action 6/9/2015 Voluntary Cleanup Program Opinion – Other
Duvall Market - VCP Status Request Letter 6/16/2006 VCP Administrative Document
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

  • Northwest Regional Office
    15700 Dayton Ave N
    Shoreline, 98133
    Please schedule an appointment to view print documents at this location.

Contaminants 2

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