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Site Report: FAA Northway (B) 52-A-2, A-3, A-4 and A-5 Tank Farm

Site Name: FAA Northway (B) 52-A-2, A-3, A-4 and A-5 Tank Farm
Address: Northway Airport, Northway, AK 99764
File Number: 170.26.007
Hazard ID: 24354
Status: Active
Staff: Alyssa Wood, 9072694587 alyssa.wood@alaska.gov
Latitude: 62.962622
Longitude: -141.938074
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

Four 20,000 gallon diesel fuel tanks were decommissioned in 1992.

Action Information

Action Date Action Description DEC Staff
10/1/1992 Site Added to Database Former Staff
10/1/1992 Underground Storage Tank Site Characterization or Assessment SA1; Gibler: Excavation of 720 cu yds of contaminated soil failed to delineate the extent of contamination. Harding & Lawson are conducting a release investigation and will propose a corrective action plan when the RI is complete. Former Staff
10/1/1992 Leaking Underground Storage Tank Release Confirmed - Petroleum LUST Site created in CSP for source area ID 77743 ADD; Former Staff
10/2/1992 Leaking Underground Storage Tank Cleanup Initiated - Petroleum LCAU; HUNG: (4)20,000 gals. diesel fuel bulk storage systems excavated 9/29/92. Soil and ground water impacted. Approx. 1,420 cubic yards contaminated soil replaced in 4 areas of the excavation. RI and CAP in progress. : LCAU date changed DB conversion Former Staff
10/6/1992 Update or Other Action NOR; Gibler sent NOR letter to FAA. Former Staff
1/20/1993 Underground Storage Tank Site Characterization or Assessment SA1R; Gibler: The site assessment received on 1/19/93 was reviewed by Gibler. It appears that a layer of sand at the 5 ft. level is the most heavily contaminated portion of soil on the site. Former Staff
2/23/1993 Update or Other Action RPL2; Peterson sent PRP-CS Database Notification Letter to RP requesting update and more environmental information concerning the contaminated site. RP responded with corrections on ADEC site report. Former Staff
6/6/1994 Update or Other Action CORR; Wingerter sent letter informing RP of their financial liability under new ADEC cost recovery policy. State is authorized, under Section 9003(h) of the Resource Conservation and Recovery Act to take action on this LUST facility. Former Staff
9/29/1994 Update or Other Action TECH; DUPEE: Consulted with Larry Acomb, consultant for Northway LUST project, regarding CAP. He stated permafrost will not affect air sparging, soils are not as fine as initially thought; they will adjust blower to force more air through soils. Mounding not a problem, product is old with low solubility. VOCs are estimated to be low, probably won't do fertilizer and no studies are planned for microbes. Stated project will begin next May 1995. Subsequently sent letter further addressing DEC concerns over this remediation plan. Former Staff
10/5/1994 Update or Other Action UPD; DUPEE: Reviewed and updated file. Former Staff
10/17/1994 Leaking Underground Storage Tank Corrective Action Underway CAPR; DUPEE: Reviewed Corrective Action Plan dated 04/20/94. Sent ltr. dated 10/17/94 requesting additional information on proposed remediation plan not contained in CAP. Former Staff
10/17/1994 Release Investigation RELR; DUPEE: Reviewed Harding Lawson Associates Release Investigation dated 05/20/93. Extensive groundwater and soil contamination. Addressed contamination in letter dated 10/17/94 concerning RI and CAP. Former Staff
3/13/2007 Exposure Tracking Model Ranking Initial Ranking Complete. Jill Taylor
11/4/2015 Update or Other Action Site management reassigned to Carnahan. John Carnahan
4/18/2017 Update or Other Action Letter sent to FAA requesting information on status of the investigations at these sites. John Carnahan
5/3/2017 Site Characterization Workplan Approved Provide approval for FINAL WP FAA RI Northway Field FAA Sta, April 2017. John Carnahan
6/10/2021 Document, Report, or Work plan Review - other DEC sent comments on the draft 2021 RI and GWM WP. The Radio Range Tower, Power Plant Building, Water Treatment Building, and CAA Former Garage building will have work done at their locations. Surface soils and surface water will be sampled for lead and PCBs at the Radio Range Tower. Existing groundwater wells will be sampled for GRO, DRO, VOCs, PAHs at the PPB and WTB AOCs. At the Garage AOC, soil borings and groundwater monitoring wells will be installed and sampled and run for all POL CoCs, with the addition of EPH and VPH for use in HRC calculations. Tim Sharp
8/30/2021 Site Characterization Workplan Approved ADEC approved the Final RI and GWM WP for the FAA Northway sites. Soil borings and monitoring wells will be installed and sampled at the CAA Garage AOC, and the HRC will be used to assess if the contaminants exceed risk criteria. Surface soils and surface water will be sampled for lead and PCBs at the Former Radio Range Tower and other groundwater wells will be sampled at other AOCs for GRO, DRO, VOCs, and PAHs. Tim Sharp
5/5/2022 Document, Report, or Work plan Review - other ADEC sent comments on the 2021 Draft RI and Groundwater Monitoring Report for FAA Northway Station. The report details efforts to characterize and monitor contamination at several areas of concern (AOCs). Soil borings and monitoring wells were installed and sampled at the Former Civil Aeronautics Administration (CAA) Garage AOC, also known as the Basketball Court site. The Hydrocarbon Risk Calculator (HRC) was used to assess remaining risk criteria. Surface soils were sampled for lead and polychlorinated biphenyls (PCBs) at the Former Radio Range Tower AOC. Groundwater monitoring was conducted at five other AOCs. Tim Sharp
10/24/2022 Update or Other Action On October 21, 2022 ADEC approved the Final Remedial Investigation and Groundwater Monitoring Report Alyssa Wood

Contaminant Information

Name Level Description Media Comments

Control Type

Type Details

Requirements

Description Details

No associated sites were found.

Missing Location Data

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