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Site Report: Beluga River 212-35

Site Name: Beluga River 212-35
Address: NW side of Cook Inlet, Beluga River Gas Field, Tyonek, AK 99682
File Number: 2337.38.020
Hazard ID: 995
Status: Cleanup Complete
Staff: ,
Latitude: 61.176667
Longitude: -151.030278
Horizontal Datum:NAD83

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.


Hydrocarbon contaminated soil at sump. Analytical results indicate elevated extractable petroleum hydrocarbon (EPH) concentrations (3,600 - 8,600 milligrams per kilogram (mg/kg)) from 6.5 to 16.5 feet deep with 880 mg/kg at 7.5 - 9 feet. These results indicate that a localized area of hydrocarbon occurrence near the former contractor sump, with low levels of hydrocarbon occurrence at the water table in the surrounding area.

Action Information

Action Date Action Description DEC Staff
4/23/1992 Site Added to Database No Longer Assigned
1/5/1993 Site Ranked Using the AHRM Surface Water Exposure Index Value changed from site managers form. No Longer Assigned
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
7/26/2005 GIS Position Updated Using Figure 1 from a Site Characterization Report, 10 Sites at Beluga River Field, from OilRisk Consultants, dated April 2003, 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
2/3/2006 Update or Other Action File name changed from ARCO BRU 212-35 Contractor Sump to Beluga River 212-35 on 2-3-06 per Don Fritz. Alyce Hughey
5/3/2006 Update or Other Action Reviewed an excavation plan at the 212-35 well pad. The excavation work is in support of gas production activities. Based on information submitted, it is unlikely that the excavation activities will encounter contamination released from the contactor sump. Don Fritz
6/17/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed. Don Fritz
11/16/2011 Update or Other Action Site transferred from Don Fritz to Peter Campbell per Paul Horwath. Alyce Hughey
12/9/2014 Report or Workplan Review - Other Received 2012 Drill site 212-35 (E Pad) Site Characterization Report with a letter requesting site closure. One monitoring well had been installed at the site in 2000. The well could not be located during a site visit in 2012. Peter Campbell
12/16/2014 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 71974 Beluga River 212-35. Peter Campbell
12/22/2014 Cleanup Complete Determination Issued Cleanup complete determination issued with standard conditions. Peter Campbell
12/22/2014 Institutional Control Record Established Institutional Controls established and entered into the database. Peter Campbell

Contaminant Information

Name Level Description Media Comments
DRO > Table C Groundwater The more restrictive of either the inhalation or ingestion soil cleanup levels apply to this site. Diesel range organics were detected in soil above the migration to groundwater cleanup levels established in 18 AAC 75.341 (d), Table B2. Migration to groundwater soil cleanup levels are not applicable in this circumstance because groundwater was shown not to be a source of drinking water at this remote industrial site. There are no groundwater cleanup levels because the impacted groundwater is not a source of drinking water. Surface water was not impacted.
Benzene < Table C Groundwater

Control Type

Type Details
No ICs Required


Description Details
Advance approval required to transport soil or groundwater off-site.
Movement or use of contaminated material (including on site) in a manner that results in a violation of the water quality standards is prohibited (18 AAC 70)

Missing Location Data

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