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Site Report: Fort Greely Bldg 670 BRAC 55

Site Name: Fort Greely Bldg 670 BRAC 55
Address: Arctic Avenue, Fort Greely, AK 99731
File Number: 141.38.061
Hazard ID: 3839
Status: Active
Staff: Carly Jensen, 9072697558 carly.jensen@alaska.gov
Latitude: 63.972659
Longitude: -145.710633
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

Diesel fuel detected in soil associated dry wells during BRAC site characterization. Results indicate DRO contamination below ADEC Method Two cleanup levels This site is investigated under the BRAC process for Fort Greely. The site is identified as BRAC Parcel 55. SMDC is now responsible for site.

Action Information

Action Date Action Description DEC Staff
3/13/2001 Site Added to Database Diesel fuel. Bruce Wanstall
11/7/2002 Update or Other Action Proposed Plan from SMDC pending. Greg Light
12/14/2004 Update or Other Action DRO was initially reported up to 530 mg/kg, however, errors were identified in the 1997 analytical data provided by Lockheed Analytical. Jacobs (April 2001) corrected the data and determined the DRO detection was actually 53 mg/kg. Emily Youcha
12/14/2004 Update or Other Action Staff received a decision document from SMDC regarding this site. The drywells will be closed in accordance with EPAs UIC program. After this step, SMDC will request No Further Action 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
8/26/2005 GIS Position Updated Coordinate obtained from RP 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
11/27/2006 Update or Other Action Per project manager instructions, assigned new file number. Old number 141.38.036, new number 141.38.061. Wendy Uzzell
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
3/28/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed. 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 Document, Report, or Work plan Review - other Approved the final 2010 Underground Injection Control Well Closure Plan, Building 670 (BRAC Site 55), Fort Greely, Alaska. This work plan describes closure activities associated with closing to Class V motor vehicle waste injection wells. The dry wells and any impacted soils will be excavated, removed, and properly treated or disposed of. Confirmation samples will be collected from the removal sites. Melody Debenham
3/22/2012 Document, Report, or Work plan Review - other Approved the revised final 2010 Underground Injection Control Dry Well Closure Report describing activities conducted at two suspected dry well sites located at Building 670. As-built drawings from 1957 show a floor drain leading to two dry wells directly to the east and west sides of Building 670, however the 2010 field work found no evidence of the dry wells or related piping. No floor drain was observed in the building, and excavation activities at the east and west sides of the buildings did not reveal the presence of any dry well structures or related piping. The excavation sidewalls appeared to have naturally occurring strata below the surface, suggesting that the soils were never excavated to install a subsurface dry well structure. Sample results from the 2010 excavations are all below the applicable 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 55. 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 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
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
10/21/2015 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 74814 Former dry wells. Melody Debenham

Contaminant Information

Name Level Description Media Comments

Control Type

Type Details

Requirements

Description Details

There are no documents for this site report.

No associated sites were found.

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