Site Report: Clear SFS Site 17 SD017

Site Name:	Clear SFS Site 17 SD017
Address:	Adjacent Building 111, Clear, AK 99704
File Number:	151.38.001
Hazard ID:	1662
Status:	Cleanup Complete
Staff:	No Longer Assigned, 9074655229 dec.icunit@alaska.gov
Latitude:	64.291966
Longitude:	-149.181267
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

On 4/92 ADEC informed that soils contaminated from past spills of fuel products at the Power Plant and Motor Pool were excavated. Contamination may remain. Extent of contamination estimated at 2000 cubic yards, though additional contamination may exist. Low levels of solvents in soils at Motor Pool. Unknown if groundwater contaminated. Bioremediation landfarming proposed. Surface soil samples from the overflow drainage ditch adjacent to the power plant were found to contain semi-volitile organic compounds including benzo(a)-anthracene, benzo(a) pyrene, benzo(b)-flouranthene, benso(k)flouranthene, and dibenzo(a,h)anthracene in excess of proposed action levles. Subsurface soil samples confirmed the conclusion from earlier studies that contaminant migration into the sub-surface soils has not occurred. No evidence of grouwnwater contamination was found at the site. Sites are managed as Operations and Maintenance sites. They are not IRP sites. Last staff assigned were Noland, and Light. An overflow pipe form an oil/water separator occasionally spilled into a ditch on the east side of Building 111. The oily water flowed at least 250 feet down the ditch east of the power pland and infiltrated the soil adjacent to the ditch.

Action Information

Action Date	Action	Description	DEC Staff
9/1/1991	Preliminary Assessment Approved	USGS conducted sampling at site. 17 soil samples were collected at the Power Plant and all were analyzed for TPH. Some samples analyzed for Halogenated Volatile Organics and Aromatic Volatile Organics. TPH values ranged from 215 - 18,800 ppm. One water, one soil sample were collected at the Motor Pool. The above analysis was conducted, plus lead analysis. TPH found at 16,500 ppm (soil) and 30,100 ppm (water). 1,2-Dichlorobenzene was also found at 11 ppm (water). Noland sent comments 12/15/93.	Laura Noland
4/20/1992	Update or Other Action	(Old R:Base Action Code = RAPR - Remedial Action Plan Review (CS)). Noland and Meggert reviewed bioremediation landfarm design plan.	Laura Noland
4/24/1992	Meeting or Teleconference Held	Noland, Meggert, and Armstrong met with Air Force and USGS to discuss bioremediation plans at Clear AFS. Requested leachate monitoring plan, sampling plan, and noted concerns about solvents in soils.	Laura Noland
5/18/1992	Site Added to Database	Fuel contaminated soils.	Laura Noland
1/24/1994	Site Ranked Using the AHRM	Initial ranking.	Laura Noland
12/5/1994	Update or Other Action	(Old R:Base Action Code = SI - Site Investigation). Reviewed Draft Summary Site Investigation Report for IRP sites 17 - 23. Appears that work was conducted without an approved work plan and several problems are evident: POL sampling not conducted at POL contaminated site (Site 17), POL methods do not appear to be approved AK methods, several metals found above MCLs and high levels in soil. Meeting with USAF scheduled 12/13/94 and final report due 3/95.	Laura Noland
1/2/2001	Update or Other Action	The Air Force has proposed NFA for this site. Staff is waiting for cleanup report.	Greg Light
3/2/2001	Site Ranked Using the AHRM	Reranked site. Changed Toxicity Value from 2 to 4 because of HVOC contamination.	Former Staff
10/13/2005	Update or Other Action	1994 RI findings/recommendation: Limited SVOC contamination in the surface soils at the former location of the oil/water separator. Remove top one foor of soil from ditch for approximately 250 feet from the location of the former oil/water separator.	Debra Caillouet
11/8/2005	Update or Other Action	Staff reviewed site summaries for 23 IRP sites at Clear. The following comment was sent to the Air Force for this site: Site 17 (SD017) is located adjacent to the power plant where an overflow pipe from an oil water separator occasionally spilled into a ditch. One removal occurred prior to 1991 when approximately 100 cubic yards of contaminated soil next to the footings was removed. It appears that the oil water separator was also removed at that time. An RI occurred in 1994 and 1995 that found elevated levels of some polyaromatic hydrocarbons and recommended a remedial action to remove soil to a depth of one foot for approximately 250 feet along the ditch. The Air Force proposes a supplemental sampling event, including the sampling for PCBs, to determine if contaminants remain that warrant further investigation. If contaminants remain at levels of concern, a RI will be completed to completely characterize the site. DEC concurs.	Debra Caillouet
2/2/2006	Update or Other Action	The Alaska Department of Environmental Conservation received the Draft Preliminary Findings Report Sites 6, 7, and 17 on January 27, 2006. The report describes the results of sampling and analysis from the fieldwork in October 2005 and proposes modifications to the work planned for the spring of 2006 based on the preliminary findings. DEC sent the following comment regarding site 17 to the Air Force. Site 17 is a drainage ditch that received runoff from an oil-water separator. The surface soils obtained during the fall effort delineated the western extent of the surface soil contamination but the results indicate the eastern extent of the surface soil contamination was not defined. DEC requests additional surface soil samples be collected and analyzed for DRO to define the eastern extent of the soil contamination. SB 01 was overlooked by DEC when commenting on the work plan. PCB soil contamination associated with the routine testing of PCB oils during the historical operations of powerhouses has been found at many other installations. The distribution of soil contamination associated with this practice has covered up to 180° and up to 10 feet around any doorway that was convenient to the transformers. Please provide a building drawing showing all exterior doorways, the location of the PCB transformers and an identification of the use of each room within the powerhouse. Using that information, a minimum of three surface soil samples should be analyzed at each doorway. Judgment should be used to bias the sampling in the direction where it would be easiest to throw the oil sample. The soil boring can be deleted from the work plan.	Debra Caillouet
5/23/2006	Site Characterization Workplan Approved	Final Work Plan for Site Investigations at Sites 7, 14, 17 and 20; and Closure Activities at Site 19, was approved	Debra Caillouet
11/8/2006	Update or Other Action	Staff reviewed Draft Site Investigation Report for Sites 7, 14, 17, and 20 and Closure Activities at Site 19 and sent the following comment. Site 17 is the power plant and includes an oil/water separator overflow ditch and the area where PCB filled transformers were located. In 2005, surface soil samples were collected and analyzed that contained DRO up to 3100 mg/kg and RRO up to 18000 mg/kg in the overflow ditch area. Surface soil samples were obtained around the doorways in 2006 and analyzed for PCBs with no detections above 1 mg/kg. The report recommends a Remedial Investigation to determine the extent of soil and potential groundwater contamination. DEC concurs. Comment, DEC requested the areas around the exterior doors be sampled for PCBs in the soil because historically after the transformer oils were tested at other military facilities the oil was disposed by pouring to the ground around doorways.	Debra Caillouet
1/4/2007	Site Characterization Report Approved	nal Site Investigation Report for Sites 7, 14, 17, and 20 and Closure Activities at Site 19, Clear Air Force Station, Alaska, December 2006. The Final Report has adequately met the requirements specified in 18 AAC 75.380 and is therefore approved. Site 17 is the power plant and includes an oil/water separator overflow ditch and the area where PCB filled transformers were located. In 2005, surface soil samples were collected and analyzed that contained DRO up to 3100 mg/kg and RRO up to 18000 mg/kg in the overflow ditch area. Surface soil samples were obtained around the doorways in 2006 and analyzed for PCBs with no detections above 1 mg/kg. The report recommends a Remedial Investigation to determine the extent of soil and potential groundwater contamination attributable to the oil/water separator overflow.	Debra Caillouet
1/4/2007	Site Characterization Report Approved	nal Site Investigation Report for Sites 7, 14, 17, and 20 and Closure Activities at Site 19, Clear Air Force Station, Alaska, December 2006. The Final Report has adequately met the requirements specified in 18 AAC 75.380 and is therefore approved. Site 17 is the power plant and includes an oil/water separator overflow ditch and the area where PCB filled transformers were located. In 2005, surface soil samples were collected and analyzed that contained DRO up to 3100 mg/kg and RRO up to 18000 mg/kg in the overflow ditch area. Surface soil samples were obtained around the doorways in 2006 and analyzed for PCBs with no detections above 1 mg/kg. The report recommends a Remedial Investigation to determine the extent of soil and potential groundwater contamination attributable to the oil/water separator overflow.	Debra Caillouet
1/22/2007	Update or Other Action	the project manager and risk assessor provided comment on the draft RI and risk assessment work plan for sites 6 & 17	Debra Caillouet
3/22/2007	Exposure Tracking Model Ranking		Debra Caillouet
3/22/2007	Site Characterization Workplan Approved	Staff approved the site characterization work plan for sites 6 and 17	Debra Caillouet
4/21/2008	Exposure Tracking Model Ranking	ETM updated based on 2007 RI as reported April 2008	Debra Caillouet
4/21/2008	Update or Other Action	The Site 17 Draft RI report April 2008 was approved. Max DRO 1100 mg/kg, benzo(a)pyrene 0.25 mg/kg in surface soil. Groundwater and subsurface soil below cleanup levels. The report generally meets the requirements of 18 AAC 75.335, Site Characterization except that it does not contain the laboratory data, nor the DEC required Laboratory Checklists. When a final report including the laboratory data and checklists is received DEC should be able to concur with the recommendations for a CERCLA No Action decision and a Conditional Closure under Alaska regulations.	Debra Caillouet
5/8/2008	Site Characterization Report Approved	Final Remedial Investigation Report, Site 17, Clear Air Force Station. The report meets the requirements of 18 AAC 75.335 Site Characterization and is approved. The report notes that because a CERCLA Remedial Investigation was completed, a Proposed Plan and Record of Decision will be required. When these are drafted, please provide DEC with a draft for review.	Debra Caillouet
8/19/2008	Update or Other Action	The ADEC received an updated Community Involvement Plan for the Environmental Restoration Program at Clear Air Force Station.	Debra Caillouet
1/12/2010	Update or Other Action	A draft Proposed Plan for Sites 15, 17, 19, 20, 21, & 23 recommending no further action under CERCLA was reviewed and minor editorial comment sent to the Air Force.	Debra Caillouet
3/25/2010	Proposed Plan	Final Proposed Plan for Sites 15, 17, 19, 20, 21, and 23, Clear AFS, Alaska, Clear Air Force Station, March 2010	Debra Caillouet
5/21/2010	Document, Report, or Work plan Review - other	The final 2009 well decommissioning report documents the proper closure of 55 wells throughout the base. It recommends an additional 20 wells be decommissioned.	Debra Caillouet
12/16/2010	CERCLA ROD Approved	Final Record of Decision Sites 15, 17, 19, 20, 21, and 23 dated August 2010 signed.	Debra Caillouet
12/16/2010	Cleanup Complete Determination Issued	per ROD	Debra Caillouet

Action Date

Action

Description

DEC Staff

9/1/1991

Preliminary Assessment Approved

USGS conducted sampling at site. 17 soil samples were collected at the Power Plant and all were analyzed for TPH. Some samples analyzed for Halogenated Volatile Organics and Aromatic Volatile Organics. TPH values ranged from 215 - 18,800 ppm. One water, one soil sample were collected at the Motor Pool. The above analysis was conducted, plus lead analysis. TPH found at 16,500 ppm (soil) and 30,100 ppm (water). 1,2-Dichlorobenzene was also found at 11 ppm (water). Noland sent comments 12/15/93.

Laura Noland

4/20/1992

Update or Other Action

(Old R:Base Action Code = RAPR - Remedial Action Plan Review (CS)). Noland and Meggert reviewed bioremediation landfarm design plan.

Laura Noland

4/24/1992

Meeting or Teleconference Held

Noland, Meggert, and Armstrong met with Air Force and USGS to discuss bioremediation plans at Clear AFS. Requested leachate monitoring plan, sampling plan, and noted concerns about solvents in soils.

Laura Noland

5/18/1992

Site Added to Database

Fuel contaminated soils.

Laura Noland

1/24/1994

Site Ranked Using the AHRM

Initial ranking.

Laura Noland

12/5/1994

Update or Other Action

(Old R:Base Action Code = SI - Site Investigation). Reviewed Draft Summary Site Investigation Report for IRP sites 17 - 23. Appears that work was conducted without an approved work plan and several problems are evident: POL sampling not conducted at POL contaminated site (Site 17), POL methods do not appear to be approved AK methods, several metals found above MCLs and high levels in soil. Meeting with USAF scheduled 12/13/94 and final report due 3/95.

Laura Noland

1/2/2001

Update or Other Action

The Air Force has proposed NFA for this site. Staff is waiting for cleanup report.

Greg Light

3/2/2001

Site Ranked Using the AHRM

Reranked site. Changed Toxicity Value from 2 to 4 because of HVOC contamination.

Former Staff

10/13/2005

Update or Other Action

1994 RI findings/recommendation: Limited SVOC contamination in the surface soils at the former location of the oil/water separator. Remove top one foor of soil from ditch for approximately 250 feet from the location of the former oil/water separator.

Debra Caillouet

11/8/2005

Update or Other Action

Staff reviewed site summaries for 23 IRP sites at Clear. The following comment was sent to the Air Force for this site: Site 17 (SD017) is located adjacent to the power plant where an overflow pipe from an oil water separator occasionally spilled into a ditch. One removal occurred prior to 1991 when approximately 100 cubic yards of contaminated soil next to the footings was removed. It appears that the oil water separator was also removed at that time. An RI occurred in 1994 and 1995 that found elevated levels of some polyaromatic hydrocarbons and recommended a remedial action to remove soil to a depth of one foot for approximately 250 feet along the ditch. The Air Force proposes a supplemental sampling event, including the sampling for PCBs, to determine if contaminants remain that warrant further investigation. If contaminants remain at levels of concern, a RI will be completed to completely characterize the site. DEC concurs.

Debra Caillouet

2/2/2006

Update or Other Action

The Alaska Department of Environmental Conservation received the Draft Preliminary Findings Report Sites 6, 7, and 17 on January 27, 2006. The report describes the results of sampling and analysis from the fieldwork in October 2005 and proposes modifications to the work planned for the spring of 2006 based on the preliminary findings. DEC sent the following comment regarding site 17 to the Air Force. Site 17 is a drainage ditch that received runoff from an oil-water separator. The surface soils obtained during the fall effort delineated the western extent of the surface soil contamination but the results indicate the eastern extent of the surface soil contamination was not defined. DEC requests additional surface soil samples be collected and analyzed for DRO to define the eastern extent of the soil contamination. SB 01 was overlooked by DEC when commenting on the work plan. PCB soil contamination associated with the routine testing of PCB oils during the historical operations of powerhouses has been found at many other installations. The distribution of soil contamination associated with this practice has covered up to 180° and up to 10 feet around any doorway that was convenient to the transformers. Please provide a building drawing showing all exterior doorways, the location of the PCB transformers and an identification of the use of each room within the powerhouse. Using that information, a minimum of three surface soil samples should be analyzed at each doorway. Judgment should be used to bias the sampling in the direction where it would be easiest to throw the oil sample. The soil boring can be deleted from the work plan.

Debra Caillouet

5/23/2006

Site Characterization Workplan Approved

Final Work Plan for Site Investigations at Sites 7, 14, 17 and 20; and Closure Activities at Site 19, was approved

Debra Caillouet

11/8/2006

Update or Other Action

Staff reviewed Draft Site Investigation Report for Sites 7, 14, 17, and 20 and Closure Activities at Site 19 and sent the following comment. Site 17 is the power plant and includes an oil/water separator overflow ditch and the area where PCB filled transformers were located. In 2005, surface soil samples were collected and analyzed that contained DRO up to 3100 mg/kg and RRO up to 18000 mg/kg in the overflow ditch area. Surface soil samples were obtained around the doorways in 2006 and analyzed for PCBs with no detections above 1 mg/kg. The report recommends a Remedial Investigation to determine the extent of soil and potential groundwater contamination. DEC concurs. Comment, DEC requested the areas around the exterior doors be sampled for PCBs in the soil because historically after the transformer oils were tested at other military facilities the oil was disposed by pouring to the ground around doorways.

Debra Caillouet

1/4/2007

Site Characterization Report Approved

nal Site Investigation Report for Sites 7, 14, 17, and 20 and Closure Activities at Site 19, Clear Air Force Station, Alaska, December 2006. The Final Report has adequately met the requirements specified in 18 AAC 75.380 and is therefore approved. Site 17 is the power plant and includes an oil/water separator overflow ditch and the area where PCB filled transformers were located. In 2005, surface soil samples were collected and analyzed that contained DRO up to 3100 mg/kg and RRO up to 18000 mg/kg in the overflow ditch area. Surface soil samples were obtained around the doorways in 2006 and analyzed for PCBs with no detections above 1 mg/kg. The report recommends a Remedial Investigation to determine the extent of soil and potential groundwater contamination attributable to the oil/water separator overflow.

Debra Caillouet

1/4/2007

Site Characterization Report Approved

Debra Caillouet

1/22/2007

Update or Other Action

the project manager and risk assessor provided comment on the draft RI and risk assessment work plan for sites 6 & 17

Debra Caillouet

3/22/2007

Exposure Tracking Model Ranking

Debra Caillouet

3/22/2007

Site Characterization Workplan Approved

Staff approved the site characterization work plan for sites 6 and 17

Debra Caillouet

4/21/2008

Exposure Tracking Model Ranking

ETM updated based on 2007 RI as reported April 2008

Debra Caillouet

4/21/2008

Update or Other Action

The Site 17 Draft RI report April 2008 was approved. Max DRO 1100 mg/kg, benzo(a)pyrene 0.25 mg/kg in surface soil. Groundwater and subsurface soil below cleanup levels. The report generally meets the requirements of 18 AAC 75.335, Site Characterization except that it does not contain the laboratory data, nor the DEC required Laboratory Checklists. When a final report including the laboratory data and checklists is received DEC should be able to concur with the recommendations for a CERCLA No Action decision and a Conditional Closure under Alaska regulations.

Debra Caillouet

5/8/2008

Site Characterization Report Approved

Final Remedial Investigation Report, Site 17, Clear Air Force Station. The report meets the requirements of 18 AAC 75.335 Site Characterization and is approved. The report notes that because a CERCLA Remedial Investigation was completed, a Proposed Plan and Record of Decision will be required. When these are drafted, please provide DEC with a draft for review.

Debra Caillouet

8/19/2008

Update or Other Action

The ADEC received an updated Community Involvement Plan for the Environmental Restoration Program at Clear Air Force Station.

Debra Caillouet

1/12/2010

Update or Other Action

A draft Proposed Plan for Sites 15, 17, 19, 20, 21, & 23 recommending no further action under CERCLA was reviewed and minor editorial comment sent to the Air Force.

Debra Caillouet

3/25/2010

Proposed Plan

Final Proposed Plan for Sites 15, 17, 19, 20, 21, and 23, Clear AFS, Alaska, Clear Air Force Station, March 2010

Debra Caillouet

5/21/2010

Document, Report, or Work plan Review - other

The final 2009 well decommissioning report documents the proper closure of 55 wells throughout the base. It recommends an additional 20 wells be decommissioned.

Debra Caillouet

12/16/2010

CERCLA ROD Approved

Final Record of Decision Sites 15, 17, 19, 20, 21, and 23 dated August 2010 signed.

Debra Caillouet

12/16/2010

Cleanup Complete Determination Issued

per ROD

Debra Caillouet

Contaminant Information

Name	Level Description	Media	Comments
DRO	Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation	Soil

Name

Level Description

Media

Comments

DRO

Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation

Soil

Control Type

Type	Details
No ICs Required

Type

Details

No ICs Required

Requirements

Description	Details
Advance approval required to transport soil or groundwater off-site.

Description

Details

Advance approval required to transport soil or groundwater off-site.

Sites 15, 17, 19, 20, 21, and 23 ROD

No associated sites were found.

Missing Location Data

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Site Report: Clear SFS Site 17 SD017

Site Chronology

IC / Closure Details

Documents

Associated Sites

Problems/Comments

Action Information

Contaminant Information

Control Type

Requirements

Sites 15, 17, 19, 20, 21, and 23 ROD

Missing Location Data

State of Alaska Department of Environmental Conservation