SA 88, P-70 Energy Generator, UST 10578 Petroleum Site

Background
The SA 88, P 70 Energy Generator site is located on the north side of Giddens Road, north of the main NSGA Complex. The P 70 Building was used for auxiliary power generation and miscellaneous storage at NSGA. When the Underground storage tank (UST) near the building was being excavated, free product was reported. Additional investigations occurred from 1996 through 2000. Soil samples contained petroleum hydrocarbons in excess of state cleanup levels. Free product was also detected in four wells.

The OU A Record of Decision (ROD) identified free-product recovery as the interim remedy for this site in 2000. Intermittent free product recovery was conducted from 1989 to 2000 when the criterion to cease free-product recovery was met. The Decision Document that was signed in 2005 identified limited groundwater monitoring as the final remedy selected for this site.

Identified Contaminants
Petroleum hydrocarbons in soil and groundwater

Click here to display the data table.

Current Actions
The Navy conducts limited monitoring at seven wells annually.


Petroleum Institutional Controls

  • Inspections and Reporting
    The ICs identified in this plan will be inspected and reported on an annual basis, or as necessary. Annual site inspection reports will present the results of inspections. The annual reporting requirements will be included in CERCLA 5-year reviews.

  • Land Use Restrictions
    Commercial and industrial land uses and continuing residential land uses where housing exists in the Downtown Area are permitted in accordance with the Interim Conveyance document. Residential housing is allowed in existing housing units located at Amulet Housing, Arctic Acres Housing and SWMU 62. Future residential housing construction will be evaluated for impacts to ongoing petroleum cleanup activities.

  • Soil Excavation Restrictions
    Soil excavation notifications are required for all the Downtown Area Petroleum sites with ICs. The excavation notifications will be required for each proposed excavation below 2 feet. The notifications will be evaluated to determine whether a proposed project at an IC site is consistent with the land use restrictions. The notifications are an additional tool for the Navy to receive timely information (in the absence of local zoning requirements) to monitor land use restrictions.


Petroleum Engineering Controls

  • Other Engineering Controls
    Other engineering controls include landfill caps (CERCLA sites), free-product recovery wells (SAERA sites), and free-product recovery trenches (SAERA sites).



sa 88 survey

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5-Year Review and Fact Sheet
The Final Third 5-Year Review report and Fact Sheet have been posted.
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Draft Meeting Minutes
The Draft Oct. 20, 2011 RAB meeting minutes has been posted to the website.
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Area 303 Final FFS, Rev 1
The Final FFS has been posted to the website.
Get Involved: Thursday, October 20, 2011

The next RAB meeting is scheduled for Wednesday, April 11, 2012 at 6 p.m. Adak time in the Reeve's High School Conference Room on Adak and at 7 p.m. local time in the ADEC Conference Room at 555 Cordova St, Anchorage.

Additional Meeting Info