Division of Spill Prevention and Response

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Site Report: Fort Greely Evergreen Road Spill BRAC 73


Site Name: Fort Greely Evergreen Road Spill BRAC 73
Address: Evergreen Road, near 64th Avenue, Fort Greely, AK 99731
File Number: 141.38.060
Hazard ID: 118
Status: Active
Staff: Joy Whitsel, 9074512156 joy.whitsel@alaska.gov
Latitude: 63.984024
Longitude: -145.721862
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

The Evergreen Road Spill is also known at Base Realignment Closure (BRAC) 73. In 1982, approximately 44,000 gallons of diesel fuel leaked from a pipeline. Some cleanup was completed at the time of the spill. Additional characterization activities performed in 1997, 1998, 1999, 2010, and 2011. Petroleum contaminated soil remains on site between migration to groundwater and risk based cleanup levels. Contaminants have not been detected above cleanup levels in groundwater.



Action Information

Action Date Action Description DEC Staff
12/29/2000 Site Added to Database Diesel fuel. Bruce Wanstall
12/29/2000 Site Ranked Using the AHRM Prelimiary ranking. Bruce Wanstall
1/3/2001 Update or Other Action Site is investigated under BRAC process. It is expected that Army will propose Method II cleanup levels without migration to groundwater. Proposed plan or results of modeling effort expected early 2001. Greg Light
11/7/2002 Update or Other Action Site is now owned by the Space Missile Defense Command. Proposed Plan is pending. Greg Light
10/1/2004 Institutional Control Record Established In the October 2004 Draft Decision Document Fact Sheets, administrative controls (ACs)were established 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. Groundwater monitoring will be conducted at a reduced scope of sampling that will be determined and agreed to between ADEC, EPA, and SMDC. Emily Youcha
12/14/2004 Update or Other Action In 1997 soil borings were drilled and DRO concentrations up to 26,000 mg/kg, GRO up to 7,600 mg/kg, benzene up to 5 mg/kg, xylene up to 327 mg/kg, and naphthalene up to 100 mg/kg were found. In 1998, more drilling ocurred and DRO concentrations up to 1,600 mg/kg, GRO up to 2,600 mg/kg, benzene up to 6.1 mg/kg, and xylenes to 190 mg/kg were found. Concentrations exceed ADEC Method Two cleanup levels to at least 70 feet bgs. None of the sample results from the upper 15 feet exceed Method Two ingestion and inhalation cleanup levels. Emily Youcha
12/14/2004 Update or Other Action Two ground-water monitoring wells were installed in 1999 (one up-gradient and one down-gradient). Emily Youcha
12/14/2004 Update or Other Action Staff received a "memorandum for record" factsheet from SMDC on this site. Site will be placed in the Installation Restoration Program (IRP) for Fort Greely. Administrative controls have been established. Ground-water monitoring is underway. 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
10/25/2006 Update or Other Action Update file number per Project Manager request. Previously file number 141.38.036 April Woolery
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
3/21/2008 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 Report or Workplan 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
2/26/2010 Update or Other Action ADEC Staff approved the 2008 Groundwater Monitoring and Data Analysis Report, Fort Greely, Alaska, dated November 2009. This report summarizes the 2008 groundwater monitoring efforts at Fort Greely as part of the long term comprehensive groundwater monitoring. Melody Debenham
11/16/2010 Site Characterization Workplan Approved Approved 2010 IRP Work Plan Addendum, which includes the installation of 3 soil borings at this site to delineate the vertical limits of contamination. Melody Debenham
9/4/2013 Report or Workplan 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 Report or Workplan 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 Report or Workplan 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
10/8/2015 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 71098 Diesel Fuel Release. Melody Debenham

Contaminant Information

Name Level Description Media Comments
Naphthalene Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil
Benzene Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil
Toluene Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil
Ethylbenzene Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil
Xylenes (total) Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil
DRO > Human Health/Ingestion/Inhalation Soil
GRO > 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 established 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
Groundwater Monitoring Groundwater monitoring will be conducted at a scope of sampling that will be determined and agreed to between ADEC, EPA, and SMDC. Annual Report, 5 year reviews

There are no documents for this site report.