Site Report: Swanson River Oil Field Plant 10 Metering Building
| Site Name: | Swanson River Oil Field Plant 10 Metering Building |
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| Address: | Mile 17.5 Swanson River Road, Sterling, AK 99672 |
| File Number: | 2334.38.031 |
| Hazard ID: | 4311 |
| Status: | Active |
| Staff: | Peter Campbell, 9072623412 peter.campbell@alaska.gov |
| Latitude: | 60.730000 |
| Longitude: | -150.861111 |
| Horizontal Datum: | NAD83 |
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We make every effort to ensure the data presented here is accurate based on the best available information currently on file with DEC. It is therefore subject to change as new information becomes available. We recommend contacting the assigned project staff prior to making decisions based on this information.
Problems/Comments
Approximately 63 to 100 gallons of 40-weight lube oil spilled from a leak in the supply line near Plant 10 meter building. The released oil migrated laterally beneath the 12-inch gas line and entered the meter building through the wall penetration from the 12-inch gas line. Maximum diesel range organics (DRO) concentrations of 6,890 parts per million (ppm). Contamination remains because further excavation of the contamination would jeopardize the active piping and structures. The site is in close proximity to areas identified by Amendment Number 4 to the August 1985 Compliance Order By Consent (COBC) which requires final remediation of polychlorinated biphenyl (PCB) contaminated soils to be initiated at the time of facility abandonment (Contaminated Sites File Number 2334.38.013, Reckey 1991230935001).
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 9/27/2006 | Spill Transferred from Prevention Preparedness and Response Program | Site transferred from PERP on September 27, 2006 by Bob Petit. PERP spill number 2006239903901. | Alyce Hughey |
| 9/28/2006 | GIS Position Updated | Using Figures 1 and 2 from the Soil Sampling at the Plant 10 40-weight oil spill, Swanson River Field, from OilRisk Consultants, dated March 21, 2006, in conjunction with TopoZone Pro and the KPB Parcel Lookup, entered the coordinates for this site. Metadata includes No Topo Basemap, Black and White Aerial Photo, TopoZone Pro Street Maps, on a Medium Size Map, View Scale 1:9,840, Coordinate Datum NAD83. High degree of confidence in accuracy of location. | Alyce Hughey |
| 9/28/2006 | Update or Other Action | File number 2334.38.032 assigned to the site and entered into the Fileroom database and Contaminated Sites database. | Alyce Hughey |
| 9/28/2006 | Update or Other Action | Don Seagren assigned as project manager, per Paul Horwath. | Alyce Hughey |
| 9/28/2006 | Site Ranked Using the AHRM | Peliminary site ranking using the AHRM. | Alyce Hughey |
| 9/28/2006 | Site Added to Database | Site added to the database. | Alyce Hughey |
| 5/8/2007 | Exposure Tracking Model Ranking | Donald Seagren | |
| 2/13/2008 | Update or Other Action | Reviewed file. Site name changed to avoid confusion with the Compressor Plant (Plant 10) PCB spill. The contaminated soil that was excavated during the initial spill response was disposed of in the permitted Swanson River Oil Field Central Waste Disposal site. Final cleanup will come a field closure and decommissioning. | Donald Seagren |
| 6/12/2008 | Update or Other Action | Site transferred from Don Seagren to Paul Horwath per Linda Nuechterlein. On 6-30-08 transferred from Paul Horwath to Don Fritz per Paul Horwath. | Alyce Hughey |
| 11/3/2011 | Update or Other Action | This release is located at the Swanson River Compressor Plant where groundwater monitoring is being conducted. Due to the facility infrastructure site cleanup is not feasible and site cleanup will occur at pad abandonment. | Alyce Hughey |
| 11/16/2011 | Update or Other Action | Site transferred from Don Fritz to Peter Campbell per Paul Horwath. | Alyce Hughey |
| 12/19/2011 | Document, Report, or Work plan Review - other | Reviewed the Plant 10 Abandonment Phase I Completion Report 2011 Activities Swanson River Field, dated November 29, 2011, from Chevron North America Exploration and Production. The Phase I Plant 10 Abandonment Project began on June 27, 2011 and was completed on November 1, 2011. Ten areas were removed above the concrete slab and ground surface within the existing Compressor Plant footprint (E-7, E-8, and E-9 Building), (C-4 Regenerator Skid), (P.S. K-5 Skid), (Deethanizer Skid), (LTS Skid #1), (LTS Skid #2), (K-1 Skid), (K-2 Skid), (K-3 Skid), and (Misc. associated exterior pipes). Once the structures were removed and the concrete slabs cleaned, the slabs were sampled and analyzed for PCB contamination; then a polypropylene geotextiele waterproof sealant was installed over slabs P.S. K-5 Skid, Deethanizer Skid, LTS Skit #1, and LTS Skid #2. The final remediation of PCB contaminated soils will be initiated at the time of facility abandonment identified in Amendment Number 4 to the August 1985 Compliance Order by Consent. | Alyce Hughey |
| 2/24/2014 | Document, Report, or Work plan Review - other | Reviewed the 2013 Compressor Plant 10 PCB Monitoring Report, dated February 12, 2014, prepared by AECOM Technical Services, Inc. During the 2013 PCB groundwater samplings conducted on June 26, 2013 and October 15, 2013, all monitoring wells tested did not detect PCB’s within the samples taken. The depth to groundwater was 4.73 to 7.43 feet on June 26, 2013 and 5.6 to 10.01 feet on October 15, 2013. The groundwater flow direction was flowing in a northwest/westerly direction. | Alyce Hughey |
Contaminant Information
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Control Type
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Requirements
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No associated sites were found.