Snohomish County Airport Fire Pit
The site was issued a Site No Further Action Letter on June 27, 2007.
Site Background
The site is located at the southwest corner of Snohomish County Airport (SCA), and it was used by the SCA Fire Department for training exercises. The fire pit was an approximately 40 feet by 80 feet oval earthen depression, about 1 to 2 feet deep adjacent to the northeast-southwest trending Taxiway K-5. The pit has been filled. The Site and its immediately vicinity are currently being developed for aviation-related commercial and industrial use.
Cleanup Conducted
An estimated 170 cubic yards of contaminated soil were excavated and disposed of off-site. Soil confirmation samples showed compliance with the MTCA Method A cleanup levels for unrestricted land use.
Contaminants Of Concern
· Total petroleum hydrocarbons as diesel, total petroleum hydrocarbons as oil and lead into the 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 6
Legal 2
| Document Title | Document Date | Document Type |
| Paine Field Fire Training Pit PFAS - Final PLP Letter | 5/27/2025 | Final Potentially Liable Person Status Letter |
| Paine Field Fire Training Pit PFAS - Preliminary PLP Letter | 2/21/2025 | Early Notice Letter |
Technical Reports 2
| Document Title | Document Date | Document Type |
| Paine Field Fire Training Pit PFAS - SHARP Report | 9/25/2025 | Site Hazard Assessment and Ranking Process Report |
| Paine Field Fire Training Pit PFAS - Initial Data Gaps Investigation | 10/9/2024 | Site Specific Technical Document - Other |
Voluntary Cleanup Program 2
| Document Title | Document Date | Document Type |
| Snohomish County Airport Fire Pit - NW1750 VCP Termination Letter | 9/5/2008 | VCP Administrative Document |
| NFA SCA Former Fire Pit (VCP NW 1750) | 6/27/2007 | VCP Opinion on Site Cleanup – NFA |
Places to see print documents
-
Northwest Regional Office15700 Dayton Ave NShoreline, 98133Please schedule an appointment to view print documents at this location.
Contaminants 2
| Contaminant Type | Soil |
Groundwater |
Surface Water |
Air |
Sediment |
Bedrock |
|---|---|---|---|---|---|---|
| Metals - Metals Priority Pollutants | B | |||||
| Non-Halogenated Organics - Petroleum Products-Unspecified | B |
- S
- Suspected
- C
- Confirmed Above Cleanup Levels
- B
- Below Cleanup Levels
- RA
- Remediated-Above
- RB
- Remediated-Below
- R
- Remediated