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Site Report: Fort Greely Bldg 615

Site Name: Fort Greely Bldg 615
Address: North End Main Post, Fort Greely, AK 99731
File Number: 141.38.014
Hazard ID: 1713
Status: Active
Staff: Carly Jensen, 9072697558 carly.jensen@alaska.gov
Latitude: 63.975129
Longitude: -145.714578
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 615 is located in the administrative/industrial geographic area near the northwest corner of the intersection of East Fifth Street and Shaw Avenue on Fort Greely, Alaska (FGA). Constructed in 1962, Building 615 was used for maintenance of Directorate of Public Works (DPW) vehicles and equipment. Maintenance operations may have included (but is not limited to) parts cleaning, degreasing, engine repair and battery repair. Wastewater from a vehicle wash rack was collected at an indoor floor drain system and treated through an oil/water separator (OWS) prior to discharge to the sewer system. A 1992 preliminary assessment (PA) documented a 2,000-gallon UST being present at Building 615, however ADEC records indicate this UST was only 1,000 gallons. Records indicate this UST was removed in 1986, however there was no closure sampling conducted, and the specific location of the UST was not documented. Building 615 was visually inspected, and a pipe locater survey was conducted around the building. Based on there being no evidence of a release from the UST, the UST site was recommended for no further action. Along the south entrance, a wooden box filled with sand was used as a hazardous waste accumulation area (SWMU-1). Past records indicate no signs of leaking, and in 1996 the EPA approved RCRA closure of the accumulation area. In 2010 a suspected grease pit and dry well were investigated near the northwest corner of Building 615. The grease pit had been previously filled and graded so the fill material was first excavated to locate the dry well which was found on the western end and covered with wooden planks. Based on there not being any photoionization detector readings in the fill material or the excavation samples, the backfill was returned. A boring was advanced through the center of the dry well and analytical soil samples were collected between 10 and 40 feet below ground surface. Diesel range organics (DRO) and residual range organics (RRO) were detected in the subsurface soil above ADEC migration to groundwater cleanup levels. Arsenic levels were detected, but within background concentrations. Additional excavation at the grease pit location was conducted in 2011. Approximately 50 cubic yards of contaminated soil was removed. Confirmation soil samples indicate DRO and 1,2,4-trimethylbenzene remain in the subsurface (12-13 feet below ground surface) above ADEC migration to groundwater cleanup levels. No groundwater wells have been installed in the immediate vicinity of this site, however depth to groundwater is around 192 to 210 feet below ground surface (bgs), and the potential for groundwater impacts from this site is low. Building 615 will continue to be used as a vehicle maintenance facility, and the area of remaining contamination is under a parking lot in a secured fenced location. The corresponding Army HQAES site number is: 02341.0131.

Action Information

Action Date Action Description DEC Staff
10/7/1992 Preliminary Assessment Approved Received "Preliminary Assessment, Fort Greely, Alaska, Draft" prepared by CH2M Hill to determine source areas for CERCLA. Former Staff
11/2/1992 Site Added to Database 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
1/4/1995 Site Ranked Using the AHRM Initial ranking. 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
12/14/2004 Update or Other Action Staff received "memorandum for record" factsheet on this site. Additional record search will be conducted by SMDC to determine the location of the former UST. Site investigation may be conducted at the former UST location. Administrative Controls have been established at this site. 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
10/20/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 72691 name: auto-generated pm edit Fort Greely SMDC Bldg. 615 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
5/31/2011 Document, Report, or Work plan Review - other Approved the Revised Final 2010 Underground Injection Control Dry Well Closure Report documenting closure activities with a grease pit dry well at Building 615. Soil samples collected from beneath the sump had diesel and residual range organics above the cleanup levels. The contaminated soil will be removed from the site under the Installation Restoration Program. 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 Building 615. 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
4/23/2013 Final Cleanup Report Reviewed Approved the final report documenting investigation and closure activities at the former grease pit located at Building 615. Characterization activities in 2010 showed petroleum contamination at the site to a depth of 30 feet. In 2011, the grease pit and dry well sump were removed and contaminated soil was excavated to a depth of 15 feet. Confirmation sampling indicates that diesel range organics remain above the migration to groundwater cleanup level between 15 and 30 feet below ground surface. 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
10/15/2015 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 72691 auto-generated pm edit Fort Greely SMDC Bldg. 615. 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
7/16/2024 Document, Report, or Work plan Review - other The Alaska Department of Environmental Conservation (DEC) has completed the review of the Environmental Summary Report which details the historical records, environmental investigations (ESR), and remedial actions for multiple sites across the base, and to evaluate the extent and magnitude of remaining contamination against the current cleanup standards. All responses to comments have been incorporated or closed out in the final document and are accepted. The ESR is now approved. Carly Jensen

Contaminant Information

Name Level Description Media Comments

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 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 reviews

There are no documents for this site report.

No associated sites were found.

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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
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