Taco Time Northwest Restaurant
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.
Documents 10
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 |
Places to see print documents
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Northwest Regional Office15700 Dayton Ave NShoreline, 98133Please 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