Firestone 31A3

351 Rainier Ave S Renton, King County
Facility Site ID: 62398766 Cleanup Site ID: 16657

  • Site Status

  • Cleanup Started

More about cleanup

Status Update

This Site was terminated from the Voluntary Cleanup Program (VCP).

Ecology received Interim Remedial Action & Cleanup Action Plan, Former Firestone Complete Auto Care Property on August 17, 2022.  Ecology issued an Opinion Letter on June 13, 2023. 

Site Background

Site Map
Site Map
The Site is located at 351 Rainier Ave S in Renton, Washington. It is currently vacant. It will be redeveloped into a parking lot.
 
The Site was first developed in 1960 as an auto maintenance facility. Auto maintenance operations occurred at the Site from 1960 until 2020. The building at the Site was demolished in 2022.

How Was Contamination Found At The Site?

Contamination was first reported at the Site in 2021.

Soil and groundwater samples collected from the Site indicated that releases of petroleum hydrocarbons and tetrachloroethylene (PCE) occurred in the vicinity of two hydraulic lifts.

 In 2022, two excavations were advanced in the area of contaminated soil.

  • Soil contaminated with PCE and/or significant amounts of petroleum hydrocarbons were transported off site for disposal at a permitted landfill.
  • Some soil removed from the excavation which contained petroleum hydrocarbons below the cleanup level was re-used as fill after it was tested.

Contaminants Of Concern

  • Gasoline- (TPH-G), diesel- (TPH-D), and oil-range (TPH-O) petroleum hydrocarbons, tetrachloroethylene (PCE), and arsenic into the Soil
  • TPH-D into the Groundwater
  • PCE and naphthalene into the Air

Future Development/Next Steps

Once the site is developed as a parking lot, monitoring wells will be installed to monitor groundwater quality at the Site. Groundwater will be sampled on a quarterly basis for one year to evaluate the concentration site contaminants.

Depending on the results of groundwater sampling, additional cleanup actions may be planned.

Places to see print documents
Technical Reports 6
Document Title Document Date Document Type
Firestone Store 31A3 - Groundwater Monitoring Well Installation and Sampling Report 7/26/2024 Monitoring Report
Firestone Store 31A3 - NW3354 - Interim Remedial Action & Cleanup Action Plan 8/4/2022 Cleanup Action Plan
Firestone 31A3 - Initial Investigation Field Report 6/27/2022 State Initial Investigation Report
Firestone 31A3 - Release Notification Letter 7/1/2021 Site Specific Administrative Document - Other (Administrative Correspondence)
Firestone Store 31A3 - NW3354 - Characterization of On-Site Contamination 4/12/2021 Site Specific Technical Document - Other
Firestone Store 31A3 - NW3354 - Limited Subsurface Sampling and Testing 2/18/2021 Site Specific Technical Document - Other
Voluntary Cleanup Program 2
Document Title Document Date Document Type
Firestone Store 31A3 - NW3354 - VCP Opinion on CAP 6/13/2023 VCP Opinion on Site Cleanup – Other
Firestone Store 31A3 - NW3354 - VCP Acceptance Letter 4/26/2023 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 6

Contaminant Type
Soil
Groundwater
Surface Water
Air
Sediment
Bedrock
Non-Halogenated Organics - Polycyclic Aromatic Hydrocarbons S
Halogenated Organics - Halogenated Solvents C S
Metals - Arsenic C
Non-Halogenated Organics - Petroleum-Diesel C C
Non-Halogenated Organics - Petroleum-Gasoline C
Non-Halogenated Organics - Petroleum-Other C
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.