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Site Report: FAA Yakutat Bldg. 607

Site Name: FAA Yakutat Bldg. 607
Address: Yakutat, FAA Tank Number 56-C-003, Yakutat, AK 99689
File Number: 1530.38.007
Hazard ID: 2377
Status: Active
Staff: Livia Bracker, 9072697695 livia.bracker@alaska.gov
Latitude: 59.514075
Longitude: -139.671422
Horizontal Datum:NAD83

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

Building 607 was formerly located near the west end of Yakutat Airport Runway at the FAA Yakutat Radio Range Station. It was previously used as a generator building then a shop before being demolished in 2001. In 1995, the FAA reported the release of a 55 gallon drum, believed to have contained petroleum and PCBs. Multiple investigations of the drum release and of the on-site UST (removed in 1997) and AST occurred. Petroleum contamination was identified with two suspected source areas. Contamination from the former storage tanks and storage drums encompassed the south area of Building 607 but a smaller release, believed to originate from a different off-site source, was also identified in the northwest corner of the former Building. Remedial actions have occurred at the site from 2010 to present day. Sampling does not indicate that groundwater is currently impacted above cleanup levels at the former Building 607 location but additional contamination remains in soil and further removal and sampling is recommended. The Radio Range Towers are located near Building 405. During a 2016 FAA survey event, the Northeast and Southeast Range towers were found to contain lead-based paint (LBP). It is believed that the Northwest and Southwest Range Towers (demolished in 2002) contained LBP as well. Soil samples taken during following site investigations confirmed the presence of lead above cleanup levels. Further remedial action is needed.

Action Information

Action Date Action Description DEC Staff
7/11/1995 Update or Other Action On 7/11/95, FAA submitted a report by Ecology and Environment which noted that one 55 gallon drum that was believed to have contained petroleum and PCBs spilled onto the ground. Samples collected showed that the maximum levels of PCBs detected was < 10 ppm, lead was a maximum of 822 mg/kg, TPH a maximum of 24,000 mg/kg, and DRO a maximum of 4,800 mg/kg. The report also noted that a heating tank was on-site and recommended further assessment of that tank. Rich Sundet
1/8/1998 Update or Other Action Final Release Investigation for UST removed at Building 607. Conclusion section - There appear to be several sources of soil contamination in the vicinity of Building 607 in additon to the former UST 56-C-003. Additional sources include an inidentifed source on the sowthwest or wes side of the State of Alaska building northeast of Building 607. Ana additional unidentified source may be reponsible for the contamination on the south side of Building 607. Also some of the contamination beneath the are of surface-stained soil that surrond the former tank is likely due to practices that produced the surface stain. The estimated maximum concentration of DRO is 6000 mg/kg. and the volume of soil is estimated at 470-1000 cubic yards, not including the soil on the southeast. Debra Caillouet
4/14/1998 Cleanup Level(s) Approved On 4/14/98, ADEC established ACLs for PCBs in the soil at 10.0 mg/kg and for lead in the soil at 1,000 mg/kg. The letter also requested that FAA submit a report of the heating tank which was allegedly removed in 1997 and that the report include recommendations for further assessment/cleanup action addressing the spilled drum and the heating tank. Rich Sundet
4/22/1998 Site Added to Database Multiple contaminants. Rich Sundet
4/22/1998 Site Ranked Using the AHRM Site ranked by staff. Rich Sundet
5/4/2000 Update or Other Action Changed site status from active to inactive. Eileen Olson
11/7/2001 Site Number Identifier Changed Changed Workplan from 01 to 09 because of presence of lead and PCBs above cleanup levels. Eileen Olson
8/6/2004 Site Characterization Workplan Approved Staff sent the FAA an approval letter for Work Plan-Expanded Release Investigation Buildings 101, 102, 607 Mike Jaynes
8/26/2004 Update or Other Action File number updated 1530.38.007 Aggie Blandford
1/10/2005 Update or Other Action File transferred to the Fairbanks office from the Juneau office for project manager assignment. Bruce Wanstall
3/6/2007 Update or Other Action Staff sent comments on a draft work plan for additional site characterization at Bldg 607. Debra Caillouet
3/6/2007 Update or Other Action Staff provided comment on the Draft Addendum to Site Investigation Work Plan, Former FAA Housing Buildings Nos. 101 and 102, Generator Building No. 607 and the VOR Debra Caillouet
3/7/2007 Update or Other Action Staff prepared comments on the draft site characterization report for buildings 101, 102, 607 and VOR Debra Caillouet
8/20/2007 Site Characterization Workplan Approved The final site characterization work plan for Bldg 607 was approved. Samples will be obtained on a grid to determine the extent of PCB contamination. Debra Caillouet
9/6/2007 Site Characterization Report Approved review of final Site Conditions Summary Report Former FAA Housing Buildings Nos 101 and 012, Generator Building No 607 and VOR Debra Caillouet
9/6/2007 Exposure Tracking Model Ranking Debra Caillouet
7/30/2008 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed. Debra Caillouet
7/31/2008 Update or Other Action Staff reviewed and sent minor comment on the Draft Site Investigation Report, Former FAA Generator Building No. 607, Yakutat. Overall the document provides complete characterization of the contamination present. The report did document PCBs in the surface soil up to 221 mg/kg and recommended placing a fence around the site to prevent exposure to the polychlorinated biphenyls in the surface soil. DEC concurred with this recommendation and requested it be implemented by the FAA as soon as practical. Debra Caillouet
1/5/2010 Document, Report, or Work plan Review - other comment was sent to the FAA on the Draft Remedial Action Work Plan, Remediation of Diesel Range Organics and PCB-Impacted Soilsat the Former Engine Generator Building 607 at Yakutat Alaska, December 2009 Debra Caillouet
3/1/2011 Document, Report, or Work plan Review - other Draft Remedial Action Report, Remediation of DRO- and PCB-Impacted Soils, Former FAA Engine Generator Building 607, Yakutat, Alaska, February 2011 Debra Caillouet
3/1/2011 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 73355 unknown. Debra Caillouet
6/10/2011 Document, Report, or Work plan Review - other Final Remedial Action Report, Remediation of DRO- and PCB-Impacted Soils, Former FAA Engine Generator Building 607, Yakutat, Alaska, April 2011. The report documents the removal of PCB contaminated soil to below 1 mg/kg at the site. Some DRO remains above the ingestion pathway cleanup level of 8250 mg/kg in cell E3 at 9500 mg/kg. Debra Caillouet
6/10/2011 Update or Other Action Final Remedial Action Work Plan, Remediation of DRO- and PCB-Impacted Soils, Former FAA Engine Generator Building 607, Yakutat, Alaska, February 2010 The Alaska Department of Environmental Conservation received the referenced work plan on June 9, 2011. As the work was completed long before the reciept of this document, DEC will place the document in our files for reference. Debra Caillouet
9/27/2016 Update or Other Action Correspondence with FAA indicates that the FFY17 budget and site plan does not include work at this site in FFY17. Kara Kusche
9/27/2017 Meeting or Teleconference Held A teleconference with ADEC and FAA was held to gain familiarity with the site. FAA is working to gather information and provide site files to ADEC. Jessica Morris
8/13/2018 Site Characterization Workplan Approved The ADEC Contaminated Sites Program approved the Final Work Plan for the Federal Aviation Administration Demolition, Site Investigation and Remedial Action, Yakutat, Alaska Jessica Morris
5/17/2021 Offsite Soil or Groundwater Disposal Approved On May 17, 2021 ADEC signed and approved 178 CY of lead and PCB contaminated soil to be disposed at Columbia Ridge Landfill. Rachael Petraeus
6/13/2022 Document, Report, or Work plan Review - other The ADEC provided comments in response to the January 2021 "Draft Report Federal Aviation Administration Demolition, Site Investigation and Remedial Action, Yakutat, Alaska" report. The comments request additional and clarifying information regarding the demolition and remedial actions undertaken between 2018-2021 at the range towers, building 405, the direction finder, and building 607. Flannery Ballard
4/21/2023 Document, Report, or Work plan Review - other The ADEC received the updated 2018, 2021 SC report, and a 2023 work plan on February 2, 2023. The ADEC is providing an additional round of comments for the SC report, and a first round of comments for the work plan. Flannery Ballard
5/25/2023 Site Characterization Workplan Approved The DEC approved the "Final Work Plan Federal Aviation Administration 2023 Remediation Action and Remedial Investigation Radio Range Towers and Building 607".The work plan proposes a 2 phased approach that will attempt to characterize and excavate lead and petroleum contaminated soil at the NW and SW towers and the 607 building. The DEC approved of decommissioning of only MW-F04 at this time. Flannery Ballard
8/24/2023 Offsite Soil or Groundwater Disposal Approved DEC approved the transportation and treatment of 210 tons of lead and petroleum contaminated soil. Contaminated soil was transported to Republic Services in Washington. Flannery Ballard
9/5/2023 Offsite Soil or Groundwater Disposal Approved The DEC approved offsite transportation of lead contaminated soil. Flannery Ballard
3/21/2024 Document, Report, or Work plan Review - other DEC approved the Final Remedial Action and Remedial Investigation Radio Range Towers and Building 607 Report. Activities detailed in the report include excavating contaminated soil and collecting monitoring well and surface soil samples. Livia Bracker

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State of Alaska Department of Environmental Conservation

P.O. Box 111800
Juneau, AK 99811-1800
Phone: 907-465-5066
Fax: 907-465-5245
TDD: 800-770-8973
Physical Location: 410 Willoughby