Taco Time Northwest Restaurant

1420 E Madison St Seattle, King County
Facility Site ID: 5460498 Cleanup Site ID: 811

  • Site Status

  • No Further Action

More about cleanup

The Site received a No Further Action determination in 2017.

Site Background

The Site is located in Seattle’s Capitol Hill neighborhood in which historical commercial land uses included a former rug cleaner and dye works, a former foundry and sheet metal shops, laundries and cleaners, a garage and a tavern. These former land uses were all prior to operation of the former Taco Time restaurant which was from 1965 to 2010. 

Soil and ground water on the Site were investigated and characterized using test pits, soil borings and monitoring wells. The contaminants of concern were diesel and heavy oil in soil and diesel and ethylene dichloride in groundwater. The diesel and oil in soil is partially related to the presence of three former underground storage tanks used to store heating oil. 

The selected cleanup action consisted of a 2016 mass excavation extending from lot-line to lot-line and to a maximum depth of 31 feet below the ground surface. This depth corresponds to a minimum elevation of the excavation bottom of 341 feet above mean sea level. Temporary perimeter shoring was installed to enable the complete removal of all contaminated soil.

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 5
Document Title Document Date Document Type
Addendum to Cleanup Action Report 1/26/2017 Site Specific Technical Document - Other
Cleanup Action Report 8/17/2016 Remedial Action Report
Cleanup Action Plan Addendum 7/2/2014 Cleanup Action Plan
Revised Work Plan - Proposed Independent Cleanup 7/13/2012 Remedial Investigation Work Plan
Revised Work Plan - Proposed Independent Cleanup Action 7/13/2012 Cleanup Action Plan
Voluntary Cleanup Program 5
Document Title Document Date Document Type
NFA Letter 12/29/2017 VCP Opinion on Site Cleanup – NFA
Taco Time Northwest Restaurant—NW2954 VCP Opinion letter 5/18/2015 Voluntary Cleanup Program Opinion – Other
Taco Time Northwest Resturant—NW2954 NFA Likely Letter 10/8/2012 Voluntary Cleanup Program Opinion – Other
Taco Time NW Restaraunt - VCP Status Request Letter 1/19/2010 VCP Administrative Document
Taco Time NW Restaraunt - VCP Opinion on Site Cleanup - Further Action 8/6/2009 VCP Opinion on Site Cleanup – 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 - Other Non-Halogenated Organics RB
Non-Halogenated Organics - Petroleum-Diesel 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.