Site Report: Beluga River 212-24
| Site Name: | Beluga River 212-24 |
|---|---|
| Address: | NW side of Cook Inlet, Beluga River Gas Field, Tyonek, AK 99682 |
| File Number: | 2337.38.018 |
| Hazard ID: | 994 |
| Status: | Cleanup Complete - Institutional Controls |
| Staff: | IC Unit, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 61.204167 |
| Longitude: | -151.003889 |
| 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
Hydrocarbon contaminated soil around sump. Analytical results show an EPH concentration of 2600 mg/kg at 5 to 6.5 feet. Last staff assigned were Marcorelle, then Folley.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 4/23/1992 | Site Added to Database | Former Staff | |
| 1/4/1993 | Site Ranked Using the AHRM | Surface Water Exposure Index Value changed from site managers form. | Former Staff |
| 9/25/2000 | Site Characterization Workplan Approved | Site characterization work plan in support of method 3 closure approved | Don Fritz |
| 5/21/2004 | Update or Other Action | File number assigned and entered into the Fileroom DB and CS DB. | Alyce Hughey |
| 6/6/2005 | Update or Other Action | Reviewed work plan for soil excavation activities. Provided comments regarding work plan to ConocoPhillips consultant for incorporation into final work plan. | Don Fritz |
| 6/14/2005 | Cleanup Plan Approved | Plan to excavate contaminated soils approved | Don Fritz |
| 7/26/2005 | GIS Position Updated | Using Figure 1from a Workplan for Soil Removal, from Worley Analytical Services, dated June 6, 2005, in conjunction with TopoZone Pro, entered the coordinates for this site. Metadata include No Topo Basemap, TopoZone Pro Street Map, Black and White Aerial Photo, on a Medium Size Map, View Scale 1:10,000, Coordinate Datum NAD83. High degree of confidence in accuracy of location. | Alyce Hughey |
| 2/2/2006 | Update or Other Action | File name changed from ARCO BRU 212-24 Contractor Sump to Beluga River 212-24 on 2-2-06 per Don Fritz. | Alyce Hughey |
| 3/15/2006 | Conditional Closure Approved | In September 2005, approximately 30 cubic yards of contaminated soil was excavated from the 212-24 Site under the oversight of Cook Inlet Environmental. The soil excavation extended approximately 4.5 feet below the groundwater table, and confirmation samples were collected from the sidewalls and bottom of the excavation. Further excavation was not considered practicable due to the proximity of buried flow lines and a building foundation. It was estimated that between five and ten cubic yards of contaminated soil (above the 18 AAC 75.341 cleanup levels) remained in the ground. A groundwater sample collected from monitor well 212-24-1 prior to excavation activities had a DRO concentration of 0.740 mg/L. No BTEX constituents were encountered above detection limits. Monitor well 212-24-1 was removed during the excavation activities. The contaminated soil excavated from the site was transported to the Beluga River Central Waste Disposal Facility in accordance with the existing Beluga River Solid Waste Permit (Permit 9921-BA008). ADEC has determined that the cleanup actions employed at the Beluga River 212-24 Contactor Sump Release were effective in removing the majority of impacted soil. There is soil contamination remaining at the site above the most stringent 18 AAC 75.341 soil cleanup levels but, the nature and extent of this contamination no longer poses an unacceptable risk to human health or the environment. ADEC has determined that no further remedial action is required at this time subject to the following conditions: 1. An institutional control will be established on the ADEC database to document the soil contamination remaining on site above the most stringent 18 AAC 75.341 cleanup levels; 2. In accordance with 18 AAC 75. 325(i), ADEC approval must be obtained prior to removal and/or disposal of soil and/or groundwater from this site. | Don Fritz |
| 3/15/2006 | Institutional Control Record Established | Less than 10 ubic yards of DRO contaminated soil (above the 18 AAC 75.341 cleanup levels) remains at the site due to the proximity of buried flow lines and a building foundation. | Don Fritz |
| 11/16/2011 | Update or Other Action | Site transferred from Don Fritz to Peter Campbell per Paul Horwath. | Alyce Hughey |
| 3/3/2016 | Institutional Control Compliance Review | IC compliance review conducted. Staff changed from Peter Campbell to IC Unit. Landowner verified with the Kenai Peninsula Borough Tax Assessor's office. IC reminder letter issued to the landowner on this date. Reminder system set to follow-up in 2021. | Kristin Thompson |
| 7/24/2024 | Institutional Control Compliance Review | IC compliance review completed on this date. An IC reminder letter was issued to the landowner. The next review will be in five years’ time. | Gaige Robinson |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| DRO | Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation | Soil |
Control Type
| Type | Details |
|---|---|
| CS Database Notation And Letter To Landowner/RP |
Requirements
| Description | Details |
|---|---|
| Excavation / Soil Movement Restrictions |
No associated sites were found.