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Site Report: Fort Greely Bldg 320 BRAC 72

Site Name: Fort Greely Bldg 320 BRAC 72
Address: Mid-Post, Pine Rd, Fort Greely, AK 99731
File Number: 141.38.005
Hazard ID: 1163
Status: Active
Staff: Carly Jensen, 9072697558 carly.jensen@alaska.gov
Latitude: 63.981286
Longitude: -145.721556
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

Building 320 is located in the mid-post geographic area of Fort Greely, northeast of the intersection of East Post Road and Robin Road. Building 320 is approximately 3,915-square feet, was built in 1964 and was formerly the Cold Regions Test Center (CRTC) equipment shop. The building was used as a warm storage for garbage trucks and snow removal equipment and stored potentially hazardous materials (including used antifreeze, used acetone/thinner and lead acid batteries). Several underground storage tanks (USTs) are associated (or have been associated) with Building 320. UST #422 (500-gallons) was installed in 1983 and removed in 1989. UST #422A (double walled 1,000-gallon tank) replaced UST #422. In 1994 UST #422A was removed and replaced with a 500-gallon aboveground storage tank (AST) #423. UST #2002 served as a receptor for Building 320’s interior central drain, and the installation of this tank was unknown. UST #2002 was removed in 1996. Several site investigations have occurred from 1989 to 2010 to delineate the extent of petroleum impacted soil at this site. Along the west side of Building 320, diesel range organics (DRO) remains in the soil at depths between 9 and 15 feet below ground surface (bgs) at a concentration of 15,000 milligrams per kilogram (mg/kg). On the north-northwest side of the building, DRO was identified in the soil at a concentration of 633 mg/kg. Based on visual observations and based on the 2009 and 2010 soil sample results, petroleum contamination extends beneath Building 320 and exists at soil depths between 15 and 22 feet bgs. The lateral extent of the contamination is not known. There have been no groundwater samples collected from this site to confirm if contamination has migrated to groundwater. Building 320 has not been investigated for vapor intrusion. Based on the soil not being delineated, groundwater at this site not being sampled and a potential vapor intrusion pathway into Building 320, additional site characterization is needed. The site does not have an Army HQAES site number.

Action Information

Action Date Action Description DEC Staff
6/9/1992 Update or Other Action (Old R:Base Action Code = SA1 - Phase I Site Assessment (General)). Soil gas survey within the building to investigate the release and loss of approximately 1,000 gallon of diesel #1 by truck tanker within building. Dan Basketfield
10/5/1992 Update or Other Action (Old R:Base Action Code = SA1 - Phase I Site Assessment (General)). Soil borings within the building floor to assess extent of diesel fuel release. Diesel range detected from 1800-3600 ppm. Dan Basketfield
2/5/1993 Meeting or Teleconference Held Met with base commander Colonel Dean Erntwine, Don Murrell, Captain Mauser, and David Fosbrook to discuss site. Recommended that further assessment req'd to eliminate the large descrepency between detected contamination and estimated release. Suggested that later engineer and institutional controp and VES may be okay approach. Dan Basketfield
5/13/1993 Site Added to Database File# 140.38.009. Former Staff
6/8/1993 Site Ranked Using the AHRM Initial ranking. Former Staff
5/16/1994 Update or Other Action (Old R:Base Action Code = RPL2 - Site Information Request Letter). Sent PRP-CS Database Notification Letter to Cristal Fosbrook requesting update/confirmation of information concerning the contaminated site. Jeff Peterson
10/1/2004 Institutional Control Record Established In the October 2004 Draft Decision Document Fact Sheets, administrative controls (ACs)were estblished in order to minimize risk to human health and the environment. The site is included in the post’s Geographic Information System (GIS), a tool used in the Dig Permit process for notifying contractors, workers, and base personnel of the potential for contamination to exist at this site. The Dig Permit process is used to prevent installation of water production well(s) through the contaminated area, and prevent removal of contaminated material from the site to off-base locations or to environmentally sensitive areas. If future land disturbance activities at the site encounter contamination, the contaminated material encountered will be properly remediated or disposed of in accordance with applicable regulations. The site will be included in 5-year reviews to periodically verify compliance with the ACs. Emily Youcha
12/15/2004 Update or Other Action Staff received a "Memorandum for Record" factsheet about this site from SMDC. Three issues exist at the site: 1) 600 gallon diesel spill, 2) removed 500 gallon heating oil UST connected to a building drain, and 3) 500 gal heating oil tank removed. Site is currently in unresolved status. The used oil UST (#2002) was apparently closed out. However, contamination probably remains due to the interior diesal spill and tank #422A. Emily Youcha
12/20/2004 Update or Other Action ADEC reviewed a report titled "Comprehensive evaluation of groundwater monitoring program Fort Greely, Alaska". The report discussed the existing monitoring network at Fort Greely and the parameters evaluated in ground-water sampling events. ADEC recommended additional investigation into infiltration and vertical hydraulic gradients. ADEC also recommended additional monitoring wells in the Old Post area and more ground-water monitoring at certain specific sites. Emily Youcha
5/25/2005 Meeting or Teleconference Held Staff conducted a site visit of Fort Greely. Summer fieldwork is underway and includes soil gas surveys, drilling and sampling several deep boreholes, and installation of at least two new monitoring wells. Staff also attended a RAB meeting where the general public recieved an update on site work for this and upcoming seasons. Emily Youcha
9/30/2005 Meeting or Teleconference Held Staff particpiated in a Restoration Advisory Board Meeting for Fort Greely on September 28. Emily Youcha
5/22/2007 Meeting or Teleconference Held Staff attended Interagency Coordination Meeting in Fairbanks. A summary of the past years and future remedial efforts was provided. Zachary Richter
5/23/2007 Meeting or Teleconference Held ADEC Staff attended a RAB meeting held in Delta Junction. The past years work at Fort Greely was summerized and future work projects were presented. Work at the North and South Tank Farms was highlighted. Zachary Richter
5/23/2007 Update or Other Action The Alaska Department of Environmental Conservation (ADEC) received the Groundwater Monitoring and Data Analysis Work Plan Fort Greely, Alaska on April 27, 2007. This work plan abides by the 2005 Final Work Plan with modifications to the wells and analytical parameters to be monitored particularly the addition of polycyclic aromatic hydrocarbon analysis at monitoring wells MW-12, MW-13, and MW-14. Additionally, the pump type used in sampling the monitoring wells will be changed by replacing the Grundfos Ready Flow pump with a QED Sample Pro 1.75 inch bladder pump and QED MP10 controller, or equivalent. All other sampling methodology will remain the same as the 2005 Final Plan. The final modification to the 2007 Work Plan is the addition of Volatile Organic Analysis/1,2-dibromoethane monitoring at drinking water wells ECP2 and ISFAC at the missile field. An updated list of wells to be monitored, and the parameter for analysis from each well, for upcoming sampling events has been provided to replace Table 5 of the 2005 Final Work Plan. ADEC has completed its review of this document and has found that the Groundwater Monitoring and Data Analysis Work Plan Fort Greely, Alaska for 2007 adequately meets the requirements set forth in 18AAC75.355, and with the addition of the previously agreed upon amendment, this work plan is approved. Zachary Richter
7/2/2007 Update or Other Action The Alaska Department of Environmental Conservation (ADEC) has completed its assessment of the environmental laboratory data and quality assurance requirements as set forth in ADEC Technical Memorandum 06-002 for the Groundwater Monitoring 2006 Analytical Data Report Fort Greely, Alaska, February 2007. The report adequately addresses the requirements set forth by ADEC for both laboratory data packages and Quality Assurance (QA) Summaries, therefore the report is approved. Zachary Richter
10/21/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 72142 name: auto-generated pm edit Fort Greely SMDC Parcel 72 Bldg 320 Deborah Williams
11/5/2008 Meeting or Teleconference Held ADEC staff participated in the Restoration Advisory Board meeting for Fort Greely in Delta Junction. During the meeting, Glen Shonkwiler with the United States Army Space and Missile Defense Command presented the fieldwork that was completed during the 2008 field season at Fort Greely. The 2008 fieldwork included remediating the soil in the biocell at the South Tank Farm (STF); conducting further delineation of the subsurface soils at the STF; installing four groundwater monitoring wells in the Old Post area and downgradient of the STF; completing the investigation at the MOGAS fuel line in the Old Post area; conducting additional survey of the Jarvis Creek Munitions Burial site; and conducting additional investigation of the Building 675 vault. He also presented the work that was planned to be completed during 2009. Deborah Williams
10/21/2009 Document, Report, or Work plan Review - other ADEC staff reviewed the document titled Draft 2008 Groundwater Monitoring and Data Analysis Report, Fort Greely, Alaska, dated March 2009. The Fort Greely groundwater monitoring program consists of monitoring wells that were installed during investigation activities on FGA from 1997 to the present. DEC approved a comprehensive groundwater monitoring approach in the 2005 Work Plan. Yearly modifications to the 2005 workplan are incorporated as needed to address environmental program objectives. Monitoring well locations and sampling frequency have been chosen to provide site specific monitoring where necessary, and comprehensive coverage for the old post and main cantonment areas of Fort Greely. Currently, a total of 30 wells are included in the groundwater monitoring program: 11 of these are sampled during the spring and fall on even numbered years, two drinking water wells are sampled quarterly, and 17 monitoring wells are sampled semi–annually. This report summarizes the 2008 groundwater monitoring efforts. A letter detailing staff comments has been provided to the Army. Tana Robert
7/23/2010 Site Characterization Workplan Approved Approved 2010 IRP Work Plan. Contaminated soil at this site will be removed to a depth of 15 feet at 2 former underground storage tank (UST) locations. Soil samples will be collected to determine the vertical extent of contamination. In addition, the interior of the building will be inspected for floor drains and the suspected location of another UST will be investigated. Melody Debenham
4/5/2011 Site Characterization Report Approved Approved 2009 IRP report. 2009 field activities included soil sampling at the former UST locations and around the perimeter of the building. Soil sample results show diesel contamination in the soil above cleanup levels. Melody Debenham
3/20/2013 Document, Report, or Work plan Review - other Approved the final soil stockpile characterization report documenting sampling of petroleum impacted soils contained in long-term stockpiles and supersacks staged near the landfarm area. The stockpiled soil was generated during remedial actions conducted from 2010 to 2012 at multiple sites at Fort Greely, including BRAC 72. Based on the information presented in the report, and in consultation with the solid waste program, the stockpiled soil is suitable for use as daily cover at the Fort Greely landfill. Melody Debenham
9/4/2013 Document, Report, or Work plan Review - other Approved the final groundwater sampling work plan for Ft. Greely. As part of the multi-year, post-wide groundwater monitoring program, groundwater samples will be collected from 35 wells. Melody Debenham
4/29/2015 Meeting or Teleconference Held Attended Restoration Advisory Board Meeting. Proposed work in 2015 includes post-wide groundwater monitoring, decommissioning unused monitoring wells, developing a Land Use Control and Long Term Maintenance Plan, and completing propose plans/no further action documents for 51 sites. Melody Debenham
8/28/2015 Document, Report, or Work plan Review - other Approved the Final 2015 Groundwater Monitoring and Data Analysis Work Plan Addendum for long-term post-wide groundwater monitoring at Fort Greely. Groundwater samples will be collected from 25 monitoring wells and 5 supply wells. Melody Debenham
8/28/2015 Document, Report, or Work plan Review - other Approved the Final 2014 Groundwater Monitoring and Data Analysis Report documenting the 2014 post-wide groundwater monitoring activities at Fort Greely. Analytical results from four monitoring wells at the BRAC 94 site were above cleanup levels for diesel range organics, gasoline range organics, and/or benzene. Results from one monitoring well at the South Tank Farm site were above the cleanup level for ethylene dibromide. All other results were either non-detect or below the cleanup level, including all supply well results. Melody Debenham
1/11/2016 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 72142 auto-generated pm edit Fort Greely SMDC Parcel 72 Bldg 320. Melody Debenham
11/18/2022 Final Cleanup Report Reviewed ADEC provided comments for the Environmental Summary Report: FGLY-099 MISC UST/AST Sites, Draft (dated September 27, 2022) to the U.S. Army. The report summarized thirteen sites the Army is recommending for site closure. Four of the thirteen sites (Bldg 320, Bldg 340, POL Storage Area and the Old Power Generation Building) ADEC does not concur with the site closure recommendation at this time. ADEC recommended the four sites needing additional site characterization be removed from the Environmental Summary Report. Erica Blake
6/8/2023 Document, Report, or Work plan Review - other DEC provided responses to comments for the Environmental Summary Report: FGLY-099 MISC UST/AST Sites, Draft (dated September 27, 2022) to the U.S. Army. Thirteen sites were evaluated for closure with this summary report. Four sites requested for closure do not meet the closure criteria. Additional site characterization work is needed before the four sites can be closed. Erica Blake

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
Land Use Plan / Maps / Base Master Plan In the October 2004 Draft Decision Document Fact Sheets, administrative controls (ACs)were estblished in order to minimize risk to human health and the environment. The site is included in the post’s Geographic Information System (GIS), a tool used in the Dig Permit process for notifying contractors, workers, and base personnel of the potential for contamination to exist at this site.

Requirements

Description Details
Groundwater Use Restrictions The Dig Permit process is used to prevent installation of water production well(s) through the contaminated area 5 year reviews
Excavation / Soil Movement Restrictions Prevent removal of contaminated material from the site to off-base locations or to environmentally sensitive areas 5 year reviews
When Contaminated Soil is Accessible, Remediation Should Occur Contamination remains in the sidewall of the excavation of Used Oil tank #2002. Additionally a 600 gallon diesel spill occurred inside the building and documentation indicates impacted soil extends to 5 ft bgs below the floor slab. If future land disturbance activities at the site encounter contamination, the contaminated material encountered will be properly remediated or disposed of in accordance with applicable regulations. 5 year review

There are no documents for this site report.

No associated sites were found.

Missing Location Data

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