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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: 64.543951
Longitude: -146.819921
Horizontal Datum:WGS84

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 Brown
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 Brown
5/14/2014 Institutional Control Update An IC reminder letter was issued to the responsible party on this date. Kristin Brown
11/6/2014 Institutional Control Update Responsible party responded to IC reminder letter indicating the site is in compliance with established institutional controls. Kristin Brown

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.
Groundwater Use Restrictions
Excavation / Soil Movement Restrictions Movement or use of contaminated material in a manner that results in a violation of 18 AAC 70 water quality standards is prohibited.

Missing Location Data

Because the GIS location data for this site has not been entered, we cannot direct you to its position on the map. Click "Continue" to proceed to the Contaminated Sites Web Map or "Close" to return to the site report.
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