Gig Harbor Transmission

14610 Purdy Dr NW Gig Harbor, Pierce County
Facility Site ID: 11876 Cleanup Site ID: 1952

  • Site Status

  • No Further Action

More about cleanup

Cleanup Completed

Environmental cleanup at the Gig Harbor Transmission site is completed and Ecology removed the site from the state's Hazardous Sites List in 2019.

Ecology held a public comment period from April 25 to May 28, 2019, on its proposal to remove the site from the Hazardous Sites List. Ecology received no comments during the comment period.

Site Description

The site is approximately 0.35 acres in a commercial location, surrounded by commercial and residential properties. Currently the site is an automotive repair station specializing in transmission repair.

Cleanup Site History

The soil was contaminated with oil-range petroleum hydrocarbons, carcinogenic polycyclic aromatic hydrocarbons (cPAHs) and lead. A leaky hydraulic lift used to raise cars for undercarriage cleaning before servicing is the likely source of the releases.  

One release occurred before March 2009 and another happened between February 2010 and January 2017. The leaking oil ran into lined and unlined trenches next to the lift. After each release, the owner removed and disposed of the contaminated soil and replaced it with clean material. After each cleanup, testing indicated soil contamination was below state cleanup levels.

Ecology evaluated the site for its potential risk to human health and the environment, ranked it by comparing it to other known sites, and put it on the Hazardous Sites List. Based on possible contamination of groundwater, Ecology ranked the site a 3, on a scale of 1 to 5 with 1 being the highest potential risk.

In 2017, the owner entered Ecology's Voluntary Cleanup Program to clean up the site on their own. After joining the program, the owner confirmed soil collected from the two trenches located near the lift was below state cleanup levels for petroleum and lead contamination. 

A  groundwater monitoring well was installed near the hydraulic lift. Quarterly groundwater sampling conducted in 2018 confirmed that petroleum hydrocarbons, cPAHs, cadmium, chromium, and lead concentrations in groundwater at the site were below state cleanup levels.

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
Public Information 2
Document Title Document Date Document Type
Gig Harbor Responsiveness Summary- No Comments 6/3/2019 Responsiveness Summary
Gig Harbor Transmission Fact Sheet 4/3/2019 Fact Sheet\Public Notices
Technical Reports 15
Document Title Document Date Document Type
Gig Harbor Transmission - SW1590 - Request for Use of Model Remedy 1/17/2019 Site Specific Technical Document - other
Request for No Further Action - Gig Harbor Transmission 1/14/2019 Site Specific Administrative Document - other (Administrative correspondence)
Groundwater Monitoring Report -Fourth Quarter 2018 - Fourth Consecutive Sampling Event - Gig Harbor Transmission 1/11/2019 Groundwater Monitoring Report
Gig Harbor Transmission - SW1590 - Groundwater Monitoring Report - Third Quarter 2018 9/14/2018 Groundwater Monitoring Report
Groundwater Monitoring Report 5/18/2018 Groundwater Monitoring Report
1Q 2018 Groundwater Monitoring Report 2/28/2018 Groundwater Monitoring Report
Groundwater Monitoring Gig Harbor Transmission 10/24/2017 Groundwater Monitoring Report
TEE Evaluation 8/7/2017 Terrestrial Ecological Evaluation
2017.05.30_Acceptance Letter Packet_Gig Harbor Transmission_SW1590 5/30/2017 Site Specific Administrative Document - other (Administrative correspondence)
Cleanup Action Report 4/26/2017 Cleanup Action Plan
Focused Subsurface Investigation 2/3/2017 Site Specific Technical Document - other
Phase I Enviornmental Site Assessment 1/27/2017 Site Specific Technical Document - other
Gig Harbor Transmission SHA FINAL 10/26/2010 Site Hazard Assessment Report
Phase II Subsurface Investigation 2/19/2010 Site Specific Technical Document - other
Phase I Environmental Site Assessment 1/22/2010 Site Specific Technical Document - other
Voluntary Cleanup Program 4
Document Title Document Date Document Type
Gig Harbor Transmission - SW1590 - VCP Opinion on Site Cleanup - No Comments from Public Comment Period 6/24/2019 Voluntary Cleanup Program Opinion – Other
Gig Harbor Transmission - SW1590 - VCP Opinion on Site Cleanup - Site NFA by Model Remedy 1 2/25/2019 VCP Opinion on Site Cleanup – NFA
2018.01.16_SW1590_Gig Harbor Transmission_Site FA letter 1/16/2018 Voluntary Cleanup Program Opinion – Other
2017.09.27_SW1590_Gig Harbor Transmission_Site Likely NFA 9/27/2017 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

  • Southwest Regional Office
    300 Desmond Dr SE
    Lacey, 98503-1274
    Please schedule an appointment to view print documents at this location.

Contaminants 4

Contaminant Type
Soil
Groundwater
Surface Water
Air
Sediment
Bedrock
Metals - Metals Priority Pollutants RB B
Non-Halogenated Organics - Petroleum Products-Unspecified RB B
Non-Halogenated Organics - Polycyclic Aromatic Hydrocarbons RB B
Metals - Lead 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.