Independent Metals Storage Lot
Facility Site ID:
21489
Cleanup Site ID:
12299
Cleanup Activities
In early 2012, Seattle Public Utilities found PCBs (polychlorinated biphenyls), in stormwater runoff from the site and in sediment collected from an associated storm drain. A petroleum sheen was also visible on storm water flowing from the site. Ecology regulates contamination from both PCBs and petroleum because they can harm human and environmental health.
The source of the PCBs and petroleum sheen was an open container that caught and leaked rainwater. To correct the problem, Independent Metals covered their containers to prevent stormwater flowing through them and built a berm to reduce stormwater flowing offsite.
In 2018 and 2020, Independent Metals tested soil and groundwater and found that mitigation was successful and the site was in compliance with states cleanup standards. The site was removed from Washington's Hazardous Sites List in 2020.
The source of the PCBs and petroleum sheen was an open container that caught and leaked rainwater. To correct the problem, Independent Metals covered their containers to prevent stormwater flowing through them and built a berm to reduce stormwater flowing offsite.
In 2018 and 2020, Independent Metals tested soil and groundwater and found that mitigation was successful and the site was in compliance with states cleanup standards. The site was removed from Washington's Hazardous Sites List in 2020.
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 16
Legal 1
| Document Title | Document Date | Document Type |
| Independent Metals Storage Lot - Early Notice Letter | 2/24/2014 | Early Notice Letter |
Public Information 1
| Document Title | Document Date | Document Type |
| Independent Metals Storage Lot Final Fact Sheet | 8/25/2020 | Fact Sheet\Public Notices |
Technical Reports 11
| Document Title | Document Date | Document Type |
| Independent Metals Storage Lot - NW3223 Stormwater Sampling | 3/31/2020 | Groundwater Monitoring Report |
| Independent Metals Storage Lot - NW3223 GW Assessment | 3/30/2020 | Groundwater Monitoring Report |
| Independent Metals Storage Lot - NW3223 Project Work Plan | 1/17/2020 | Site Specific Technical Document - other |
| Independent Metals Storage Lot - NW3223 VCP Acceptance Letter | 5/16/2019 | Site Specific Administrative Document - other (Administrative correspondence) |
| Independent Metals Storage Lot - SHA Rank Letter | 10/30/2015 | Site Specific Administrative Document - other (Administrative correspondence) |
| Independent Metals Storage Lot - Site Hazard Assessment | 10/27/2015 | Site Hazard Assessment Report |
| Independent Metals Plant 1 & Storage Lot - GW Analytical Data | 8/26/2015 | Site Specific Technical Document - other |
| Independent Metals Plant 1 & Storage Lot - Soil Analytical Data | 8/26/2015 | Site Specific Technical Document - other |
| Independent Metals Plant 1 & Storage Lot - Lab Data | 6/23/2015 | Site Specific Technical Document - other |
| Independent Metals Storage Lot - SHA Notification Letter | 12/15/2014 | Site Specific Administrative Document - other (Administrative correspondence) |
| Independent Metals Storage Lot - Initial Investigation Field Report | 2/21/2014 | Initial Investigation Report |
Voluntary Cleanup Program 3
| Document Title | Document Date | Document Type |
| NW3223 Independent Metals NFA | 6/18/2020 | VCP Opinion on Site Cleanup – NFA |
| Independent Metals Storage Lot - NW3223 NFA Letter | 6/18/2020 | VCP Opinion on Site Cleanup – NFA |
| Independent Metals Storage Lot - NW3223 Further Action Letter | 10/23/2019 | 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
-
Northwest Regional Office15700 Dayton Ave NShoreline, 98133Please schedule an appointment to view print documents at this location.
Contaminants 11
| Contaminant Type | Soil |
Groundwater |
Surface Water |
Air |
Sediment |
Bedrock |
|---|---|---|---|---|---|---|
| Metals - Metals - Other | B | B | B | |||
| Halogenated Organics - Polychlorinated biPhenyls (PCB) | B | B | B | |||
| Non-Halogenated Organics - Polycyclic Aromatic Hydrocarbons | B | B | B | |||
| Metals - Arsenic | B | RB | B | |||
| Metals - Lead | B | B | B | |||
| Metals - Mercury | B | B | ||||
| Halogenated Organics - Other Halogenated Organics | B | |||||
| Non-Halogenated Organics - Other Non-Halogenated Organics | B | B | ||||
| Non-Halogenated Organics - Petroleum-Diesel | B | |||||
| Non-Halogenated Organics - Petroleum-Gasoline | B | |||||
| Non-Halogenated Organics - Petroleum-Other | B |
- 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.