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Site Report: Yakutat AFB Former Coast Artillery Outpost

Site Name: Yakutat AFB Former Coast Artillery Outpost
Address: SW End of Cannon Beach Road, ~3 Miles SW of Yakutat Airport, Yakutat, AK 99689
File Number: 1530.38.001
Hazard ID: 26287
Status: Cleanup Complete
Staff: No Longer Assigned, 9074655229 dec.icunit@alaska.gov
Latitude: 59.493248
Longitude: -139.726839
Horizontal Datum:

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

The Former Coast Artillery Outpost (FCAO) was the site of two 6-inch naval guns located at the south end of Cannon Beach Road. The area is currently being used as recreational site for residents of Yakutat. Remnants of a WWII military tank and sawed off 6-inch cannons are present at the site. Electric lines, hydraulic lines, and concrete debris piles were found northwest of the approximate former building locations. A wooden foundation was also found in the forested area near the naval guns. A metal detector indicated a sub-surface foundation was present less than 20 feet from the western gun. 2,4-Dinitrotoluene was detected in surface soil at a concentration (0.623 mg/kg) above the migration to groundwater cleanup level (0.0093 mg/kg).

Action Information

Action Date Action Description DEC Staff
7/12/2000 Update or Other Action ADEC reviewed the Draft Remedial Investigation/Feasibility Study Work Plan. The ADEC commented that the proposed work addresses only the site that the USACE determined were FUDS program eligible. Additional information was requested to determine whether the proposed work is sufficient to address hazardous substances, pollutants, and contaminants resulting from past military activities in and around Yakutat. Due to the time schedules for the contracts and proposed work, these determinations were agreed to be addressed at a later time. The FCAO site was not included in the remedial investigation, but were recommended for further investigation. John Halverson
9/11/2000 Update or Other Action ADEC received the Final Remedial Investigation/Feasibility Study Work Plan. John Halverson
4/5/2004 Update or Other Action A draft remedial investigation/feasibility study was reviewed. The field team performed a walkover of this area, and found a small metal and debris pile and wooden foundation in a forested area. Additional investigation was recommended for this area. The ADEC determined that each site had insufficient site characterization data available to select appropriate remedies or to effectively evaluate them against CERCLA criteria. Based on the information provided, the Feasibility Study is premature. ADEC recommended that the USACE not incur further expense to finalize the document until further site characterization was done. Work should occur to identify the data gaps and resolve them before any additional actions are taken. Debra Caillouet
4/17/2004 Update or Other Action The ADEC received the Final 2001 Remedial Investigation/ Feasibility Study Report. The USACE did not request comments on the report, and it was not formally approved by ADEC. Debra Caillouet
8/19/2004 Meeting or Teleconference Held Staff attended the Restoration Advisory Board meeting in Yakutat. Debra Caillouet
11/23/2004 Update or Other Action Response to comments on the draft feasibility study were received and reviewed. While the responses will add clarification to the document, DEC believes there is insufficient site characterization data. The Feasibility Study is premature. Work should occur to identify the data gaps and resolve them before any additional actions are taken. Debra Caillouet
1/13/2005 Meeting or Teleconference Held Staff attended the Restoration Advisory Board meeting in Yakutat. Debra Caillouet
11/7/2007 CERCLA PA ADEC commented on the Draft Military Munitions Response Program CERCLA Preliminary Assessment. There was no evidence of any ordnance items or storage structures, though the metal detector revealed a sub-surface foundation less than 20 feet from the western gun. It was concluded that this may have been a ready ammunition magazine. No further DoD action was recommended at this site. Debra Caillouet
1/17/2008 Meeting or Teleconference Held ADEC Staff participated in a site visit to various sites around the Yakutat area. Snow inhibited access to many of the sites but the purpose of the trip was to get an understanding of the distribution of sites and to attend a Restoration Advisory Board Meeting. Jonathan Schick
8/13/2008 Site Visit ADEC staff attended a Restoration Advisory Board meeting in the community of Yakutat. A site visit was conducted at the FCAO site. Jonathan Schick
3/17/2010 CERCLA FS ADEC Staff issued a letter to the USACE approving the finalization of the Feasibility Study Report as all of the State's comments have been responded to and incorporated in the document. The FCAO site was mentioned in the feasibility study, but was not evaluated. Additional investigation was recommended. Jonathan Schick
8/6/2010 Site Characterization Workplan Approved ADEC staff sent a letter to the USACE project manager approving the implementation of the final work plan for the Supplemental Remedial Investigation for several sites in Yakutat. The work plan included site characterization of the FCAO site. The field work is scheduled to begin immediately and will be continuing for approximately one month. Jonathan Schick
10/22/2010 CERCLA FS Contaminated Sites Staff submitted a letter to the US Army Corps of Engineers approving the Final Version of the Feasibility Study Report. No further DoD action was recommended for these sites. The FCAO site was mentioned in the feasibility study, but was not evaluated. Additional investigation was recommended. Jonathan Schick
4/5/2012 Site Characterization Report Approved Contaminated Sites Staff submitted a letter to the US Army Corps of Engineers Remedial Project Manager approving the final version of the Supplemental Remedial Investigation Report. Three hand borings were advanced at this site in the approximate locations of two buildings observed in a 1962 aerial photograph. 2,4-Dinitrotoluene was detected in surface soil at a concentration (0.623 mg/kg) above the migration to groundwater cleanup level (0.0093 mg/kg). The sample collected below this surface soil sample was below the migration to groundwater cleanup level. The concentration is below the direct contact and inhalation cleanup levels. Additional investigation was recommended for this site. Jonathan Schick
9/29/2014 Meeting or Teleconference Held The ADEC Contaminated Sites staff participated in a Restoration Advisory Board (RAB) meeting, a tribal meeting, and site inspections in Yakutat with the Army Corps of Engineers to share information on the status of Formerly Used Defense Site investigation and cleanup activities around Yakutat. Jessica Morris
10/13/2014 Site Added to Database A new site has been added to the database Mitzi Read
10/14/2014 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 79677 name: Former Coast Artillery Outpost Jessica Morris
2/17/2015 CERCLA Proposed Plan The ADEC Contaminated Sites Program approved the February 2015 Proposed Plan for No Department of Defense Action Indicated (NDAI) for the Yakutat Air Base Formerly Used Defense Sites. The proposed plan included the Former Coast Artillery Outpost. For this site, no additional remedial action, no additional review, no implementation of long term management or land use controls is planned by the Department of Defense. If new information becomes available indicating risk or concern of military-related contamination at this AOC, further evaluation may be warranted. Jessica Morris
9/28/2015 Cleanup Complete Determination Issued The ADEC Contaminated Sites Program approved the Decision Document and No Department of Defense Action Indicated Report for the Former Yakutat Air Base, Yakutat, Alaska. Site closure was approved for the Former Coast Artillery Outpost. Jessica Morris

Contaminant Information

Name Level Description Media Comments
2,4-Dinitrotoluene Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil De minimus quantity.

Control Type

Type Details
No ICs Required

Requirements

Description Details
Advance approval required to transport soil or groundwater off-site.
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)

No associated sites were found.

Missing Location Data

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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