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Site Report: Hilcorp NS Drill Site 9 Well 11 (BPX)

Site Name: Hilcorp NS Drill Site 9 Well 11 (BPX)
Address: Drill Site 9, Eastern Operating Area, ~3.5 Miles East of Prudhoe Bay, Prudhoe Bay, AK 99734
File Number: 300.38.269
Hazard ID: 4551
Status: Cleanup Complete - Institutional Controls
Staff: IC Unit, 9074655229 dec.icunit@alaska.gov
Latitude: 70.246799
Longitude: -148.238601
Horizontal Datum:WGS84

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

Arctic Pack Fluid (diesel mixed with bentonite) leaked from the well. Some soil was removed and clean gravel placed back in the well cellar. Confirmation soil samples contained DRO up to 23,500 mg/kg.

Action Information

Action Date Action Description DEC Staff
12/14/2007 Spill Transferred from Prevention Preparedness and Response Program Site transferred by PERP staff Tom DeRuyter. Spill No. 07399910301; Spill Date = 4/15/07; Substance = Arctic Pack Fluid; Quantity = ~15 Gallons; PERP File No. 300.02.005. Mitzi Read
1/9/2008 Site Added to Database Site added to the database. Mitzi Read
1/10/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed. Mitzi Read
9/10/2009 Site Visit Site visits conducted on 9/1/09. No odor or staining was visible and noe sheen was present on surface water in the reserve pit, approximately 50 feet from the well house. Bill O'Connell
9/30/2009 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 75548 Arctic Pack Fluid in Well Cellar. Bill O'Connell
10/14/2009 Cleanup Complete Determination Issued The Alaska Department of Environmental Conservation, Contaminated Sites Program (ADEC) has completed a review of the environmental records associated with BPX Drill Site 9 Well 11 located near Prudhoe Bay Alaska. Based on the information provided to date, it has been determined that the contaminant concentrations remaining on site do not pose an unacceptable risk to human health or the environment and no further remedial action will be required as long as the site is in compliance with established institutional controls. Bill O'Connell
10/14/2009 Institutional Control Record Established Institutional Controls established and entered into the database. Bill O'Connell
6/13/2012 Institutional Control Compliance Review An IC review was conducted on this site and the staff assigned was changed from Bill O'Connell to IC Unit. Evonne Reese
9/16/2014 Institutional Control Update Received a temporary use water authorization application from DNR for the Hilcorp Sag River Mine Site C. Evonne Reese
10/27/2014 Institutional Control Update Responded to a temporary water use application info request recieved from DNR for Duck Island Mine Site pond which is located about 1/2 mile from this site. Evonne Reese
12/4/2014 Update or Other Action Staff name changed from IC Unit to McLoone. Evonne Reese
5/24/2016 Update or Other Action Administrative update: Staff changed to Joshua Barsis IC Unit
9/28/2016 Update or Other Action At this time, the project manager chooses to retain management of this site which has institutional controls. IC Unit
3/19/2024 Institutional Control Update DNR-SAIL added as affiliate (Office of Primary Responsibility). For DNR LAS information: ADL# 421440 Jennifer McGrath

Contaminant Information

Name Level Description Media Comments
DRO > Human Health/Ingestion/Inhalation Soil Contamination at pad/tundra interface in well house

Control Type

Type Details
Signed CS Determination

Requirements

Description Details
Advance approval required to transport soil or groundwater off-site.
When Contaminated Soil is Accessible, Remediation Should Occur

No associated sites were found.

Missing Location Data

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