Site Report: ARCO C Pad HWSU Facility WOA
| Site Name: | ARCO C Pad HWSU Facility WOA |
|---|---|
| Address: | Western Operating Area, Prudhoe Bay Unit, Prudhoe Bay, AK 99734 |
| File Number: | 300.38.219 |
| Hazard ID: | 3979 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 70.299800 |
| Longitude: | -148.680000 |
| 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
The C Pad Storage Facility is an unlined gravel pad located northwest of C Pad. This regulated unit is only a container storage unit; it is not a tank system, treatment process, nor part of a land disposal facility. Waste accepted at the facility have been primarily from oil and gas production activities within the Western Operating Area. Wastes are produced at oil production pads, oil/water/gas separating facilities, facilities that reinject gas and produced water for enhanced oil recovery, and support facilities, i.e, living quarters, laboratories, offices, and maintenance shops. Lead and arsenic present above closure performance standards. Ash layer relating to the gravel pad portion is present one foot below ground surface. A portion of the pad was used in the late 70s for burning camp garbage.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 1/10/2000 | Update or Other Action | Certified Letter from EPa dated January 10, 2000 allowing BPXA to combine the EOA and WOA "into one single facility operation retaining the EPA identification number (ID#) AKD 00064 3239". The EOA and WOA designations are still valid. | Linda Nuechterlein |
| 7/26/2001 | Update or Other Action | Letter dated July 26, 2001 from BPXA to EPA RE: "C Pad Closure Plan Revisions, EPA ID# AKD000643239"; signed by Goeffry Kany for John Booth/Mike McDaniel. | Linda Nuechterlein |
| 8/9/2002 | Update or Other Action | BPXA submitted "Closure SAP Amendment RCRA Interim Status C Pad hazardous Waste Storage Facility (WOA)" prepared by Oasis Environmental, dated August 9, 2002. (letter was dated August 7, 2002) | Linda Nuechterlein |
| 8/21/2002 | Update or Other Action | BPXA submitted Sampling Analysis Plan (SAP) Admendment - Clarifications for WOA C-Pad to EPA. | Linda Nuechterlein |
| 10/15/2002 | Update or Other Action | Certified letter from EPA to BPXA stating that BPXA "...adequately addressed EPA's concerns. The August 9, 2002 Closure SAP Amendment, as clarified by BPXA's August 21, 2002 letter, is approved." | Linda Nuechterlein |
| 12/12/2002 | Update or Other Action | Certified letter from EPA to BPXA RE: "Conditional Approval of Closure Sampling Analysis Plan (SAP) Amendment #2 RCRA C Pad Hazardous Waste Storage Unit Closure Plan Prudhoe Bay Western Operating Area EPA ID No. AKD 00064 3239" | Linda Nuechterlein |
| 4/14/2003 | Update or Other Action | Letter from BPXA to EPA requesting a closure extension for the C Pad in WOA, with the added milestone of a deadline of December 15, 2003 for the "Selection of the Ultimate Disposition alternative". | Linda Nuechterlein |
| 5/27/2003 | Update or Other Action | Certified letter from EPA to BPXA RE: Request for Closure Extension (C Pad WOA) "EPA approves the revised closure schedule in the April 14, 2003 letter." | Linda Nuechterlein |
| 4/16/2004 | Update or Other Action | A letter to EPA identifying a revised ultimate disposition alternative of the ash layer: re-utilizing as much of it as possible as liner protection fill material in the construction of the Alaska Department of Environmental Conservation (ADEC) permitted new solid waste storage cell at W Pad and noting that any excess ash would have to be disposed at the North Slope Borough Oxbow Landfill or at Columbia Ridge in Arlington, OR. | Linda Nuechterlein |
| 4/20/2004 | Update or Other Action | Amended design for waste storage cell at W Pad to utilize up to 2200 cubic yards of RCRA non-exempt non-hazardous ash excavated from C Pad for 5 feet of basal fill above the liner in the new storage cell approved by Solid Waste. | Linda Nuechterlein |
| 5/19/2004 | Update or Other Action | By May 19th, BPXA completed excavating the ash layer from C Pad. BPXA was able to recycle 625 cubic yards of the ash for use in the W Pad cell construction; however, during site excavation BPXA encountered more ash at C Pad then was initially estimated. BPXA selected the North Slope Borough (NSB) Oxbow Landfill over Columbia Ridge for the disposal of the excess ash that could not be recycled. Over 7,000 cubic yards of ash and ash-contaminated gravel/tundra were disposed of at the NSB Oxbow Landfill. | Linda Nuechterlein |
| 8/17/2004 | Update or Other Action | BPXA has completed closure activities at C Pad Interim Status HWSU at WOA. BPX sent Prudhoe Bay WOA C pad 2004 Closure Certification and Report dated Aug. 2004 to EPA (Roberta Hedeen) to comply with 40 CRF 265.115. This document describes a partial closure of the Prudhoe Bay facility under the facility's RCRA interim status obligations. | Linda Nuechterlein |
| 1/27/2005 | Site Added to Database | Sarah Cunningham | |
| 1/28/2005 | GIS Position Updated | TopoZone Pro. NAD27. | Sarah Cunningham |
| 3/2/2007 | Site Closure Approved | ADEC received EPA "Certification of Closure" letter which documents that closure of the WOA C Pad Hazardous Waste Storage Unit has been completed in accordance with approved closure plan. This letter from EPA also releases BPXA from the requirement to maintain financial assurance which correlates specifically to the closure of the WOA C-pad HWSU. | Linda Nuechterlein |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| For more information about this site, contact DEC at (907) 465-5390. |
Control Type
| Type | Details |
|---|---|
| No ICs Required |
Requirements
| Description | Details |
|---|---|
| Advance approval required to transport soil or groundwater off-site. |
There are no documents for this site report.
No associated sites were found.