Facility Site ID: 35644949 Cleanup Site ID: 8853

Cleanup Activities

In 1992, approximately 2,150 cubic yards of petroleum-contaminated soil was excavated and disposed at an approved facility. Current operations include a convenience store, gas station and a car wash. The past activities resulted in a release of petroleum hydrocarbons. Results from soil samples show the remaining low level concentrations in the soil are below state cleanup levels. Groundwater monitoring shows that no exceedances of any cleanup levels were detected in the ground water in four consecutive monitoring events.

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.

Public Information 1
Document Title Document Date Document Type
Unocal 5905 Final Fact Sheet June 2019 6/2/2019 Fact Sheet\Public Notices
Technical Reports 6
Document Title Document Date Document Type
NW3177 Unocal 5905 Public Notice Packet 6/12/2019 Site Specific Administrative Document - other (Administrative correspondence)
Request for Opinion and Change of Contact Form 2/7/2019 Site Specific Administrative Document - other (Administrative correspondence)
UNOCAL 5905 Bothell 76_Remedial Investigation Revision #1 1/31/2019 Remedial Investigation Report
UNOCAL 5905 Bothell 76_Remedial Investigation 10/30/2017 Remedial Investigation Report
Unocal 5905 - Site Hazard Assessment 6/28/2013 Site Hazard Assessment Report
Unocal 5905 - SHA Notification Letter 5/7/2013 Site Specific Administrative Document - other (Administrative correspondence)
Voluntary Cleanup Program 4
Document Title Document Date Document Type
NW3177 Unocal 5905 NFA Letter 7/30/2019 VCP Opinion on Site Cleanup – NFA
Draft No Further Action Opinion Letter NW3177 3/5/2019 Voluntary Cleanup Program Opinion – Other
Opinion Letter NW3177 10/8/2018 Voluntary Cleanup Program Opinion – Other
NW3177 Unocal 5905 Acceptance Letter 9/10/2018 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

  • Northwest Regional Office
    15700 Dayton Ave N
    Shoreline, 98133
    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 - Benzene RB RB
Non-Halogenated Organics - Other Non-Halogenated Organics RB 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.