Site Report: Hilcorp NS Pad 3 (East End) (former ARCO) (BPX)
| Site Name: | Hilcorp NS Pad 3 (East End) (former ARCO) (BPX) |
|---|---|
| Address: | Eastern Operating Area, Prudhoe Bay Unit, Prudhoe Bay, AK 99734 |
| File Number: | 300.38.082 |
| Hazard ID: | 2367 |
| Status: | Cleanup Complete - Institutional Controls |
| Staff: | IC Unit, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 70.239999 |
| Longitude: | -148.500923 |
| 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
Hydrocarbon Contamination was discovered during routine gravel removal on July 31, 1994. Diesel odor was noted on gravel pad and tundra surface. Charter D.2 List. Samples collected by ARCO confirmed diesel range petroleum hydrocarbon contamination of the pad and tundra. A magnetometer survey is scheduled for 1994 field season.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 10/9/1995 | Site Added to Database | DRO in gravel pad. | Scott Rose |
| 5/23/2005 | Meeting or Teleconference Held | Meeting to discuss site status & proposed sampling for 2005. | Linda Nuechterlein |
| 5/25/2005 | Update or Other Action | Approved use of "restricted-use" gravel as backfill for excavation on Pad 3,when decommissioning of East Pit. | Linda Nuechterlein |
| 3/15/2006 | Site Characterization Report Approved | BP submitted a combined Phase II SA and Corrective Action Report which describes site conditions discovered during the summer 2005 investigation and proposed activiites to be performed in response to the Phase II. | Linda Nuechterlein |
| 4/25/2006 | Cleanup Plan Approved | CAP approved for gravel pad excavation/removal and for transport of restricted-use gravel. See letter dated 4/25/06 for additional details. | Linda Nuechterlein |
| 2/23/2007 | Exposure Tracking Model Ranking | Baseline ranking completed. | Linda Nuechterlein |
| 4/12/2007 | Update or Other Action | On this date received the Pad 3 East End (Charter Site 16) Site Closure Report dated January 30, 2007. | Linda Nuechterlein |
| 4/12/2007 | Update or Other Action | CSM Scoping Form and CSM graphic completed/appproved. Consultant complete lab checklist which was 3rd party reviewed by ESI. | Linda Nuechterlein |
| 4/1/2008 | Conditional Closure Approved | The Alaska Department of Environmental Conservation, Contaminated Sites Program (ADEC) reviewed the environmental records associated with ARCO Pad 3 (East End). This site had been contaminated by the release of a hazardous substance; however, based on the information provided to date, ADEC has determined that no further remedial action is required, and that ARCO Pad 3 (East End) can be closed subject to the conditions outlined in the Record of Decision. The hazardous substance contamination has been adequately addressed and does not pose an unacceptable risk to human health or the environment. | Bill O'Connell |
| 4/1/2008 | Institutional Control Record Established | There is contamination remaining above established cleanup levels at ARCO Pad 3 (East End) but ADEC has determined there is no unacceptable risk to human health or the environment, and this site will be conditionally closed. This decision is subject to the following conditions: 1. A Notice of Environmental Contamination will be recorded on the ADEC database to document that there is residual contamination remaining on site above the most stringent ADEC cleanup levels; 2. Any proposal to transport soil off site requires ADEC approval in accordance with 18 AAC 75.370 (b) | Bill O'Connell |
| 4/3/2012 | Institutional Control Compliance Review | IC review conducted and staff name changed from Nuechterlein to IC Unit. | Evonne Reese |
| 11/5/2014 | Update or Other Action | Project manager name changed from IC Unit to Keather McLoone. | Evonne Reese |
| 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 |
| 8/5/2024 | 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 | > Method 1 (Arctic only) | Soil |
Control Type
| Type | Details |
|---|---|
| CS Database Notation And Letter To Landowner/RP |
Requirements
| Description | Details |
|---|---|
| Advance approval required to transport soil or groundwater off-site. |
No associated sites were found.