Site Report: Alyeska PS 10 Booster Pump Building
| Site Name: | Alyeska PS 10 Booster Pump Building |
|---|---|
| Address: | Mile 218 Richardson Hwy., Pump Station 10, Paxson, AK 99737 |
| File Number: | 330.38.057 |
| Hazard ID: | 1727 |
| Status: | Cleanup Complete - Institutional Controls |
| Staff: | IC Unit, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 63.424170 |
| Longitude: | -145.766490 |
| 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
A spill of residual oil occurred in the booster pump enclosure of PS#10 due to a broken seal in a return line originating at the Topping Unit. 15 yards of contaminated gravel was removed with a super sucker from the south wall of the booster pump enclosure. Additional contamination was left in place due to concerns of building integrity. Additional remediation will be required upon facility shutdown or reconfiguration. A potential IC site due to contamination under building foundation. Another later cleanup was performed at this location - see file 330.38.090
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 12/14/1992 | Update or Other Action | (Old R:Base Action Code = RARR - Remedial Action Report Review (CS)). Alyeska used a supersucker to remove 15 cubic yards of residual oil contamination from the south side of the Booster Pump building. Excavation floor sampling indicates contamination occurrs at depth. TPH concentrations ranged from 50 mg/kg to 16,000 mg/kg. | Mehrdad Nadem |
| 2/15/1996 | Site Added to Database | Site added during records search. | Scott Rose |
| 2/15/1996 | Site Ranked Using the AHRM | Initial ranking. | Scott Rose |
| 1/11/2008 | Exposure Tracking Model Ranking | Initial ranking with ETM completed. | Keather McLoone |
| 3/26/2010 | Cleanup Complete Determination Issued | The Alaska Department of Environmental Conservation (ADEC), Contaminated Sites Program, has completed a review of the environmental records associated with the Alyeska PS 10 Booster Pump Building site. Based on the information provided to date, the ADEC has 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. This decision is based on the administrative record for PS 10 Booster Pump Building, which is located in the offices of the ADEC in Anchorage, Alaska. | Keather McLoone |
| 4/6/2010 | Institutional Control Record Established | Institutional Controls established and entered into the database. | Keather McLoone |
| 12/1/2011 | Update or Other Action | The current project manager chose to retain management of this site with the Cleanup Complete Determination that has Institutional Controls. | Kristin Thompson |
| 11/12/2013 | Institutional Control Compliance Review | IC compliance review conducted and staff changed from Linda Nuechterlein to IC Unit. Reminder system set-up to follow-up with the responsible party in 2015. | Kristin Thompson |
| 4/7/2015 | Institutional Control Update | An IC reminder letter was issued to the responsible party on this date. | Kristin Thompson |
| 10/13/2015 | Institutional Control Periodic Reporting | The responsible party informed ADEC that there have been no changes in land use or ownership at this site since the 2010 Record of Decision. Reminder system re-set to follow up in another five years. | Kristin Thompson |
| 11/20/2017 | Meeting or Teleconference Held | Attended a meeting regarding the elimination of non-essential infrastructure at Pump Station 10. There are five Alyeska sites located at this pump station that have institutional controls and this site is one of them. Construction is in the planning stages and will not begin until 2019. The foundations for the buildings on the pad will remain in place so the residual contamination that may remain underneath the foundations will remain in place. Because of this, the project is not planning on addressing the known contaminated site issues. Verifying this detail should be included in the next IC compliance review. | Evonne Reese |
| 11/20/2017 | Meeting or Teleconference Held | Meeting with Alyeska on this date. the Booster Pump Building will be removed in 2019 as part of the PS 10 Elimination of non-essential infrastructure. | Grant Lidren |
| 6/19/2018 | Institutional Control Compliance Review | IC compliance review conducted. Closure/IC Details updated. Reminder system already set for follow-up in 2020. | Kristin Thompson |
| 3/11/2020 | Institutional Control Compliance Review | Received the IC verification from Alyeska which confirms that no changes in land use or other actions that would affect the ICs have occurred. All ICs are in compliance. | Evonne Reese |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| TPH | > Human Health/Ingestion/Inhalation | Soil | estimated RRO concentration is what exceeds at ~ 14,000 mg/kg |
Control Type
| Type | Details |
|---|---|
| Signed CS Determination |
Requirements
| Description | Details |
|---|---|
| Advance approval required to transport soil or groundwater off-site. | Standard condition. |
| When Contaminated Soil is Accessible, Remediation Should Occur | Soil contamination is located in the area of PS 10 Booster Pump Bldg. When the soil in this area becomes accessible, such as during pipeline decommissioning, the soil must be evaluated and contamination addressed in accordance with an ADEC approved work plan. |
| Other | Alyeska shall report to ADEC every five years to document land use, or report as soon as they become aware of any changes in land ownership and/or use. |
| Movement or use of contaminated material (including on site) in a manner that results in a violation of the water quality standards is prohibited (18 AAC 70) | Standard condition. |
No associated sites were found.