Site Report: BPX T Pad
| Site Name: | BPX T Pad |
|---|---|
| Address: | North of Spine Road, Prudhoe Bay Unit, Western Operating Area, Prudhoe Bay, AK 99734 |
| File Number: | 300.38.215 |
| Hazard ID: | 4263 |
| Status: | Active |
| Staff: | Laura Jacobs, 9074512911 laura.jacobs@alaska.gov |
| Latitude: | 70.352419 |
| Longitude: | -148.800258 |
| 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 odor and/or sheen was observed at two locations, monitoring location S3 during a site monitoring event on 7/19/02 and indicative of a historic diesel release. Residual hydrocarbons are present in the tundra along a narrow swath of the pad margin. BP believes that the residual fuel has biodegraded and poses no significant threat to the environment. In 2024 this site record was reopened in order to document new contaminants found related to a fire training site.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 4/1/2004 | Site Characterization Report Approved | 2003 T Pad monitoring report received. Seven sediment samples were collected from an area where sheen was noted during a 2002 inspection. Low levels of toluene and xylenes were found in three of the samples and sheen was noted in one area where it had been observed previously. Interpretation of data and visual observations indicates a discrete area of significantly weathered diesel contamination. | Bill O'Connell |
| 6/15/2006 | Site Added to Database | Site added to the database. | Bill Petrik |
| 6/15/2006 | GIS Position Updated | Coordinates taken from Figure 1, "Prudhoe Bay Unit T Pad Surface Water Sample Locations Vicinity Map" of the BPXA "2002 Water Quality Monitoring Report for T-Pad Solid Storage Area" sent to ADEC on 9/10/02. Coordinates are for the centroid of the pad. The report coordinates were updated from NAD 27 to NAD 83/WGS 84 using TopoZone Pro. No other metadata supplied. Unable to verify accuracy of the coordinates but they appear to be reasonable. | Bill Petrik |
| 6/15/2006 | Site Ranked Using the AHRM | Initial ranking. | Bill Petrik |
| 5/11/2007 | Exposure Tracking Model Ranking | Bill O'Connell | |
| 9/10/2009 | Site Visit | Site visit on 9/1/09. Sheen was visible when sediment was disturbed in the area of concern west of the pad. Areas of the pad are apparently used for fire training excercises, however impacts to the pad from these activities are unknown. | Bill O'Connell |
| 4/19/2013 | Exposure Tracking Model Ranking | A new updated ranking with ETM has been completed for source area 75229 Historic. | Bill O'Connell |
| 4/30/2013 | 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 T Pad, located north of Spine Road in 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 this site will be closed. | Bill O'Connell |
| 9/18/2018 | Workplan Requested | Sent letter on this day requesting evaluation of PFAS at this site. | Joshua Barsis |
| 4/8/2019 | Document, Report, or Work plan Review - other | Reviewed the work plan dated April 2, 2019 and titled T Pad 2019 Fire Training Ground PFAS Investigation Work Plan. Proposed activities consist of installing up to 7 soil borings around the liner at T Pad, completing the borings as monitoring wells, collecting 3 soil samples from each boring, and 1 water sample from each well. Additionally, one 5-point composite soil sample will be collected from the area within the subsurface liner for the specific purpose of future waste characterization. Soil and water samples will be submitted for laboratory analysis of one or more of the following: PFAS, GRO, DRO BTEX, VOCs, and/or PAHs. | Joshua Barsis |
| 10/21/2024 | Site Reopened | Site reopened due to an additional source area discovered along with new contaminants of concern. | Evonne Reese |
| 10/22/2024 | Exposure Tracking Model Ranking | Initial ranking with ETM completed for source area id: 81445 name: Fire Training Ground | Laura Jacobs |
| 11/12/2024 | Workplan Requested | DEC has requested further work to determine the extent of hazardous substance contamination at the fire training ground. PFAS remains within the surface waters to the north and west of the pad, and within the pad porewater but the vertical and horizontal extent has not been characterized completely. A request for a work plan has been sent and is requesting a work plan to be submitted to the department by December 13, 2024. | Laura Jacobs |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| DRO | Other | Surface Water - Fresh | Sheen on surface water, no detections above soil cleanup levels in sediment |
Control Type
| Type | Details |
|---|---|
| No ICs Required |
Requirements
| Description | Details |
|---|---|
| Advance approval required to transport soil or groundwater off-site. |
No associated sites were found.