Site Report: Fort Greely SMDC Bldg. 606 PP

Site Name:	Fort Greely SMDC Bldg. 606 PP
Address:	North End of Main Post, Power Plant, Fort Greely, AK 99731
File Number:	141.38.012
Hazard ID:	1711
Status:	Active
Staff:	Erica Blake, 9074512182 erica.blake@alaska.gov
Latitude:	63.973467
Longitude:	-145.716469
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.

Site Chronology
IC / Closure Details
Documents
Associated Sites

Problems/Comments

Source area identified in 10/92 CERCLA Preliminary Assessment. Oil fired boiler heating plant operating since 1953. All floor drains connected to sewer system. Waste oil, chlorinated solvents, and antifreeze have been discharged to drains and possibly to gravel pad around building. Drum storage area outside power plant is being closed under RCRA. Previous file # 140.38.017. The site is assigned a MEDIUM site rank on the Army Defense Environmental Restoration Tracking System Worksheet dated 11/8/96. Last staff assigned was Short. (rpltr7) Update 12/14/04: Building 606 houses the decommissioned nuclear power plant, operational diesel generators, and oil fired boilers that provide heat to the post. There are several underground storage tanks and a former hazardous material accumulation area at the site. The nuclear reactor is covered under a different RECKEY and file number.

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
11/1/1992	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
6/30/1995	Site Characterization Workplan Approved	(Old R:Base Action Code = SA2 - Phase II Site Assessment (General)). Work plan for Release Investigation confirmational drilling received and commented on at Review conference with AGRA Inc. and ACOE.	Ronan Short
12/11/1995	Site Characterization Report Approved	(Old R:Base Action Code = SA2R - Phase II SA Review (CS)). Investigation report by AGRA received this date. Recommends further investigation. Possible Risk Assessment in 1996.	Ronan Short
3/12/1996	Update or Other Action	Received "Investigation Report Buildings #162 and #606."	Ronan Short
3/13/1996	Update or Other Action	Received Appendix "G" for Fort Greely Confirmation Drilling Sites.	Ronan Short
3/26/1997	Update or Other Action	Site updated by Shannon and Wilson, based on the Army Defense Site Environmental Restoration Tracking System Worksheet dated 11/8/96. The worksheet 0.8 ppm toluene and 8 ppm ethylbenzene in soil and 61 ppb benzene, 400 ppb toluene, 200 ppb ethylbenzene, and 2,500 ppb xylenes in groundwater. There is a downgradient drinking water well.	S&W
3/2/2001	Update or Other Action	File number corrected from 140.38.017 to 141.38.012.	Mitzi Read
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	Site has two 25,000 gallon USTs outside the southwest corner of the building and two 10,000 gallon USTs outside the southeast corner. A covered outdoor drum storage area was located outside the north end of the building on a loading dock. A former drum storage area was located near the fence bordering the east side of the building area. Water supply well (no. 9) was located near the building. Floor drains inside the building connected to the sewer system (SMDC, 2004 factsheet).	Emily Youcha
12/14/2004	Update or Other Action	There was a former drum storage area being closed out under RCRA. Six borings were drilled and detected concentrations were below proposed cleanup levels and closure was verified by EPA. Closure occured in September 1995.	Emily Youcha
12/14/2004	Update or Other Action	Building 606 USTs were never tested due to leaks in piping at pipe joints at the tops of tanks. Five USTs (434,436,437,435, 438) were removed in Spet 1992. DRO concentrations up to 22,000 mg/kg. Further action was recommened.	Emily Youcha
12/14/2004	Update or Other Action	In 1994, HLA investigated the tanks and sample results for no. 434 were below cleanup levels. POL concentrations in borings that investigated UST No. 435, 436, 437, and 438 were above clanup levels (DRO up to 13,000 mg/kg, elevated BTEX). Contamination exceeded ADEC Method Two down to at least 70 feet bgs.	Emily Youcha
12/14/2004	Update or Other Action	SMDC proposes this site be placed in their compliance program. Administrative Controls are in place, 5-yr reviews will occur, and additional investigation will be needed.	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
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
4/24/2008	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
1/31/2011	Exposure Tracking Model Ranking	Initial ranking with ETM completed for source area id: 72689 name: Former USTs	Erik Norberg
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
9/2/2015	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
9/2/2015	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

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

11/1/1992

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

6/30/1995

Site Characterization Workplan Approved

(Old R:Base Action Code = SA2 - Phase II Site Assessment (General)). Work plan for Release Investigation confirmational drilling received and commented on at Review conference with AGRA Inc. and ACOE.

Ronan Short

12/11/1995

Site Characterization Report Approved

(Old R:Base Action Code = SA2R - Phase II SA Review (CS)). Investigation report by AGRA received this date. Recommends further investigation. Possible Risk Assessment in 1996.

Ronan Short

3/12/1996

Update or Other Action

Received "Investigation Report Buildings #162 and #606."

Ronan Short

3/13/1996

Update or Other Action

Received Appendix "G" for Fort Greely Confirmation Drilling Sites.

Ronan Short

3/26/1997

Update or Other Action

Site updated by Shannon and Wilson, based on the Army Defense Site Environmental Restoration Tracking System Worksheet dated 11/8/96. The worksheet 0.8 ppm toluene and 8 ppm ethylbenzene in soil and 61 ppb benzene, 400 ppb toluene, 200 ppb ethylbenzene, and 2,500 ppb xylenes in groundwater. There is a downgradient drinking water well.

S&W

3/2/2001

Update or Other Action

File number corrected from 140.38.017 to 141.38.012.

Mitzi Read

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

Site has two 25,000 gallon USTs outside the southwest corner of the building and two 10,000 gallon USTs outside the southeast corner. A covered outdoor drum storage area was located outside the north end of the building on a loading dock. A former drum storage area was located near the fence bordering the east side of the building area. Water supply well (no. 9) was located near the building. Floor drains inside the building connected to the sewer system (SMDC, 2004 factsheet).

Emily Youcha

12/14/2004

Update or Other Action

There was a former drum storage area being closed out under RCRA. Six borings were drilled and detected concentrations were below proposed cleanup levels and closure was verified by EPA. Closure occured in September 1995.

Emily Youcha

12/14/2004

Update or Other Action

Building 606 USTs were never tested due to leaks in piping at pipe joints at the tops of tanks. Five USTs (434,436,437,435, 438) were removed in Spet 1992. DRO concentrations up to 22,000 mg/kg. Further action was recommened.

Emily Youcha

12/14/2004

Update or Other Action

In 1994, HLA investigated the tanks and sample results for no. 434 were below cleanup levels. POL concentrations in borings that investigated UST No. 435, 436, 437, and 438 were above clanup levels (DRO up to 13,000 mg/kg, elevated BTEX). Contamination exceeded ADEC Method Two down to at least 70 feet bgs.

Emily Youcha

12/14/2004

Update or Other Action

SMDC proposes this site be placed in their compliance program. Administrative Controls are in place, 5-yr reviews will occur, and additional investigation will be needed.

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

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

4/24/2008

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

1/31/2011

Exposure Tracking Model Ranking

Initial ranking with ETM completed for source area id: 72689 name: Former USTs

Erik Norberg

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

9/2/2015

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

9/2/2015

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

Contaminant Information

Name	Level Description	Media
Benzene	> Human Health/Ingestion/Inhalation	Soil
DRO	> Human Health/Ingestion/Inhalation	Soil
Naphthalene	> Human Health/Ingestion/Inhalation	Soil
Toluene	> Human Health/Ingestion/Inhalation	Soil
Ethylbenzene	Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation	Soil
Xylenes (total)	> Human Health/Ingestion/Inhalation	Soil

Name

Level Description

Media

Comments

Benzene