Facility Site ID:
68996432
Cleanup Site ID:
10186
Site Background
The site has had numerous remedial technologies applied including AS/SVE, ELR and the current DPE system installed in 2006. Depth to groundwater ranges from 1.7 to 22 feet below the ground surface and the groundwater flow direction is to the southeast.
Contaminants of concern at the site include total petroleum hydrocarbons in the gasoline, diesel and heavy oil ranges.
Next Steps
In February 2017, this site was withdrawn from the VCP at the customer's request. When a VCP Agreement is terminated, Ecology may take one or more steps including conduct a Site Hazard Assessment and/or identifying those persons found potentially liable for cleanup of the site.
Documents 23
Technical Reports 21
| Document Title | Document Date | Document Type |
| Arco 0980—NW2729 First Half 2023 Semi Annual Groundwater Monitoring Report | 8/8/2023 | Groundwater Monitoring Report |
| Arco 0980—NW2729 Subsurface Investigtion Report | 12/12/2022 | Site Specific Technical Document - other |
| Arco 0980—NW2729 Second Half 2022 Semi Annual Groundwater Monitoring Report | 12/8/2022 | Site Specific Technical Document - other |
| Arco 0980—NW2729 Semi-Annual GWMR - 2nd Half 2021 | 2/14/2022 | Site Specific Technical Document - other |
| Arco 0980—NW2729 Subsurface Investigation Report | 1/14/2022 | Site Specific Technical Document - other |
| Arco 0980—NW2729 Semi-Annual GWMR - 1st Half 2021 | 7/8/2021 | Site Specific Technical Document - other |
| Arco 0980—NW 2779 Subsurface Investigation Report | 2/19/2021 | Site Specific Technical Document - other |
| Arco 0980—NW 2779 Semi-Annual GWMR - 2nd Half 2020 | 2/5/2021 | Site Specific Technical Document - other |
| Arco 0980—First Half 2020 Semi-Annual Groundwater Monitoring Report | 7/6/2020 | Site Specific Technical Document - other |
| Arco 0980—Soil Vapor Probe Installation and Sampling Report | 1/7/2020 | Site Specific Technical Document - other |
| Arco 0980—Second Half 2019 Semi-Annual Groundwater Monitoring Report | 1/6/2020 | Site Specific Technical Document - other |
| Arco 0980—Subsurface Investigation Report | 11/18/2019 | Site Specific Technical Document - other |
| Arco 0980—First Half 2019 Semi-Annual Groundwater Monitoring Report | 8/21/2019 | Site Specific Administrative Document - other (Administrative correspondence) |
| Arco 0980—Second Half 2018 Semi-Annual Groundwater Monitoring Report | 1/31/2019 | Site Specific Technical Document - other |
| Arco 0980—NW2729 VCP Semmi-Annual Groundwater Monitoring Report Fist Half 2018 | 11/24/2018 | Site Specific Technical Document - other |
| Arco 0980—NW2729 VCP Termination Letter | 2/13/2017 | Site Specific Administrative Document - other (Administrative correspondence) |
| BP Technical Assistance Agreement (TAAG) - 2016 Notice of Termination | 7/20/2016 | Site Specific Administrative Document - other (Administrative correspondence) |
| Fourth Quarter 2015 Groundwater Monitoring Report | 2/10/2016 | Groundwater Monitoring Report |
| Groundwater Monitoring Report 1st Quarter 2015 | 5/13/2015 | Groundwater Monitoring Report |
| ARCO 0980 - Strategic Plan | 6/19/2013 | Site Specific Technical Document - other |
| ARCO 0980 - Groundwater Monitoring Report 1st Quarter 2013 | 5/15/2013 | Groundwater Monitoring Report |
Voluntary Cleanup Program 2
| Document Title | Document Date | Document Type |
| ARCO 0980 - Opinion Letter | 7/7/2014 | Voluntary Cleanup Program Opinion – Other |
| ARCO 0980 - Request for Opinion, Monitoring Well Sampling and Analysis Reduction | 4/3/2014 | 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 Office15700 Dayton Ave NShoreline, 98133Please schedule an appointment to view print documents at this location.
Contaminants 8
| Contaminant Type | Soil |
Groundwater |
Surface Water |
Air |
Sediment |
Bedrock |
|---|---|---|---|---|---|---|
| Non-Halogenated Organics - Non-Halogenated Solvents | C | C | ||||
| Non-Halogenated Organics - Methyl tertiary-butyl ether | C | C | ||||
| Metals - Lead | C | C | ||||
| Non-Halogenated Organics - Benzene | C | C | ||||
| Non-Halogenated Organics - Other Non-Halogenated Organics | C | |||||
| Non-Halogenated Organics - Petroleum-Diesel | C | C | ||||
| Non-Halogenated Organics - Petroleum-Gasoline | C | C | ||||
| Non-Halogenated Organics - Petroleum-Other | C | 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.