Site Report: Alyeska PS 08 Manifold Building
| Site Name: | Alyeska PS 08 Manifold Building |
|---|---|
| Address: | Off MP 330 Richardson Hwy, Onto Johnson Road, Eielson AFB, AK 99702 |
| File Number: | 330.38.076 |
| Hazard ID: | 2678 |
| Status: | Cleanup Complete - Institutional Controls |
| Staff: | IC Unit, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 64.543424 |
| Longitude: | -146.820407 |
| 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
Releases of turbine fuel in the offloading area at PS 8 directly impacted soils in an area of approximately 500 square feet adjacent to the booster pump building. Approximately 75 cubic yards (30 ft x 20 ft down to 9 ft) of turbine fuel contaminated soils were removed during the corrective action program in 1996. Alyeska requested that the impacted soils remaining beneath the booster pump building be addressed as part of the facility closure. Currently PS 08 is in standby and the supply well is inactive according to DEC Drinking Water Program's Source Water database. Groundwater was reported to be very deep in this area `375 feet bgs and 750 ft west of tank farm site (not currently certain of where this is in reference to this site).
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 12/16/1996 | Update or Other Action | Date of Soil Sampling and Analysis Report submitted to ADEC. The excavation of the contaminated soil was approximately 9 feet below ground surface at its deepest point (near bedrock). The excavation proceeded laterally to the maximum extent possible withourt jeopardizing the integrity of the manifold building and two concrete utilidors. Approximately 75 cubic yards of material were excavated. Confirmation soil sampling indicated that significant petroleum hydrocarbon impact to soils remains in the vicinity of the site excavation. Concentrations up to 13,000 mg/kg DRO and 410 mg/kg GRO. BTEX compounds below most conservative Method Two criteria. | Keather McLoone |
| 6/15/1998 | Update or Other Action | Contamination Assessment Workplan submitted to ADEC for review. | Deborah Williams |
| 12/1/1998 | Update or Other Action | Contamination Assessment Report submitted to ADEC for review. EMCON was unable to determine the extent of subsurface impact below the source area due to the placement of the vertical CMPs and subsurface pipelines. Those obstacles also prohibit the installation of an effective bioventing system. Therefore, Alyeska recommended that this site be given a low priority until PS 8 is fully decommissioned and further site assessment through the contaminated zone can be conducted and an effective in situ remediation system can be installed. Five borings were advanced - two within the former excavation area and three outside it. Two of eleven samples had DRO above most conservative criteria for DRO up to 392 mg/kg. One sample analyzed for GRO, BTEXs, and PAHs below most conservative criteria. | Keather McLoone |
| 8/18/2000 | Site Ranked Using the AHRM | Initial ranking. | Bruce Wanstall |
| 8/31/2000 | Site Added to Database | Turbine fuel. | Bruce Wanstall |
| 1/28/2008 | Update or Other Action | Status update for site. PS08 remains inactive, fenced with a guard on duty to limit access to the site. Further remdiation will be done when the site is decommissioned. | Pam Clemens |
| 1/28/2008 | Exposure Tracking Model Ranking | Initial ranking with ETM completed. | Pam Clemens |
| 2/1/2008 | GIS Position Updated | Updated using Arc GIS SPAR_StatewideLocator (ArcReader) | Grant Lidren |
| 3/4/2009 | Conceptual Site Model Submitted | Receipt of Pump Station 8 Manifold Building Turbine Fuel Release Conceptual Site Model by SLR. This was prepared to support a request for a conditional site closure. | Keather McLoone |
| 3/4/2009 | Exposure Tracking Model Ranking | A new updated ranking with ETM has been completed for source area 73654 Manifold bulding turbine fuel spill. | Keather McLoone |
| 3/11/2009 | Institutional Control Record Established | Land-use restrictions and reporting regarding site status | Keather McLoone |
| 3/11/2009 | Cleanup Complete Determination Issued | The ADEC has determined there is no unacceptable risk to human health or the environment, and this site will be granted a Cleanup Complete- ICs determination subject to the following. 1. Any future change in land use may impact the exposure assumptions cited in this document. If land use and/or ownership changes, current ICs may not be protective and ADEC may require additional remediation and/or ICs. Therefore the Alyeska Pipeline Service Company shall report to ADEC every five years to document land use, or report as soon as Alyeska Pipeline Service Company becomes aware of any change in land ownership and/or use, if earlier. The report can be sent to the local ADEC office or electronically to DEC.ICUnit@alaska.gov. 2. Installation of groundwater wells will require approval from ADEC in accordance with 18 AAC 75.350(2). 3. Any proposal to transport soil or groundwater off site requires ADEC approval in accordance with 18 AAC 75.325 (i). A “site” [as defined by 18 AAC 75.990 (115)] means an area that is contaminated, including areas contaminated by the migration of hazardous substances from a source area, regardless of property ownership. (See attached site figure.) 4. Movement or use of contaminated material in a manner that results in a violation of 18 AAC 70 water quality standards is prohibited. | 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 2014. | Kristin Thompson |
| 5/14/2014 | Institutional Control Update | An IC reminder letter was issued to the responsible party on this date. | Kristin Thompson |
| 11/6/2014 | Institutional Control Periodic Reporting | Responsible party responded to IC reminder letter indicating the site is in compliance with established institutional controls. | Kristin Thompson |
| 6/19/2018 | Institutional Control Compliance Review | IC compliance review conducted. Closure/IC Details updated. Reminder system already set for follow-up in 2019. | Kristin Thompson |
| 3/11/2019 | Institutional Control Compliance Review | An ICs verification letter was received on this date from Alyeska confirming that all ICs are being complied with and that land use has not changed. The internal reminder system has been set for May 2024 for another 5-year review. | Evonne Reese |
| 9/25/2024 | Institutional Control Compliance Review | The landowner responded to the IC reminder letter and provided a written confirmation that land use has not changed | Gaige Robinson |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| DRO | > Human Health/Ingestion/Inhalation | Soil | |
| GRO | Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation | Soil |
Control Type
| Type | Details |
|---|---|
| Signed CS Determination | |
| Other | Land-use Restrictions |
Requirements
| Description | Details |
|---|---|
| Advance approval required to transport soil or groundwater off-site. | Standard condition. |
| Groundwater Use Restrictions | Installation of groundwater wells will require approval from ADEC. |
| 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.