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 |
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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
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 | Institutional Control Record Established | Institutional Controls established and entered into the database. | 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 |
| 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 |
| 7/9/2024 | Institutional Control Compliance Review | IC compliance review completed on this date. An IC reminder letter was issued to the responsible party and cc’d to the landowner. The next review will be in five years’ time. | Gaige Robinson |
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.