Site Report: Cold Bay Fort Randall-Beach Seep

Site Name:	Cold Bay Fort Randall-Beach Seep
Address:	Cold Bay Airport, NE of East End E-W Runway, Cold Bay, AK 99571
File Number:	2538.38.019
Hazard ID:	2859
Status:	Active
Staff:	Erica Blake, 9074512182 erica.blake@alaska.gov
Latitude:	55.200144
Longitude:	-162.699391
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

The beach seeps site is referred to as the drum disposal area (DDA)/beach seep area (BSA) and covers approximately 15 acres of land along the shoreline of Cold Bay. An approximate 300-foot long hydrocarbon seep is located on the beach at the base of the bluff which is south of the city dock and north of the East-West Runway. All known contaminant sources; aboveground storage tank, related piping and buried drums, have been removed. Free phase petroleum hydrocarbons are present in the water table. In 1998 a high vapor extraction (HVE) system was constructed to remove free product as it accumulates on the water table surface. In 2007, a bioventing system was constructed to enhance and accelerate biodegradation activities in the vadose zone. In addition to the bioventing system, a soil vapor extraction system was added to the HVE system, and biovent wells, soil-gas monitoring points and soil-moisture monitoring points were also installed. The treatment systems are monitored regularly, and operations are ongoing. This site also includes spill no. 17259919801. On 7/13/17 approximately 89 gallons of diesel and water were released from a treatment system at the HVE shack when a failed centrifuge prevented the system from shutting off.

Action Information

Action Date	Action	Description	DEC Staff
4/3/1996	Update or Other Action	FAA submitted a Site Cleanup and Investigation Report for the Cold Bay FAA Station, by ENSR, dated February 1996. The report documents free phase petroleum hydrocarbons on the water table beneath a former military fuel tank and a sheen on the beach below it. The report states the FAA had not used the tank and that it should be referred to Corps of Engineers for follow-up under the FUDS program.	John Halverson
1/31/1997	Update or Other Action	Corps submitted a FUDS Eligibility Report for the Beach Seep Area and Former Fuel Storage Tank the World War II Drum Disposal Area and Aviation Gasoline UST Area, dated January 1997, by Jacobs Engineering. It recommends the Corps undertake action at each site through the FUDS program.	John Halverson
2/19/1997	Site Added to Database	Site added by Shannon and Wilson, Inc.	S&W-Miner
2/19/1997	Preliminary Assessment Approved	PA action added by Shannon and Wilson, Inc., on 2/19/1997. Based on FUDS Site Summary Sheet, PA started 08/31/95; no completion date. RD scheduled to start October 2000, RA scheduled to start October 2001.	S&W-Miner
5/12/1998	Interim Removal Action Approved	ADEC concurred with the Corps of Engineers 1998 Workplan for the World War II Drum Disposal Area, Stapp Creek and the Beach Seep Area, by Jacobs, 1998. It calls for excavation of drums and contaminated soil from the drum disposal area and installation of a high vacuum extraction system to recover fuel off the groundwater.	John Halverson
9/24/1998	Update or Other Action	Corps submitted "Site Investigation and Interim Removal Action Report - Beach Seep Area and Former Fuel Storage Tank and Drum Disposal Area; Aviation Gasoline USTs Area" by Jacobs Engineering, dated August 1998. It documents site characterization work including installation of 4 monitoring wells at this site, more than three feet of fuel was measured in two of the wells. It also indicated that the drum disposal area may be linked with the beach seep and be a contributing source of the sheening. Recommends that the drums be removed and a free product recovery system be installed.	John Halverson
1/14/1999	Update or Other Action	ADEC received the final High Vacuum Extraction System Construction Report.	John Halverson
3/17/1999	Update or Other Action	ADEC sent the Corps a letter with comments on the draft 1998 Removal Action Report, World War II Drum Disposal Area, Stapp Creek Pipeline, and Beach Seep Area, prepared by Jacobs Eng.	John Halverson
5/4/1999	Update or Other Action	ADEC received the 1998 Removal Action Report, World War II Drum Disposal Area, Stapp Creek Pipeline, and Beach Seep Area, by Jacobs, dated May 1999. The report documents installation of the high vacuum extraction system above the beach seep and excavation of ~2140 drums (approximately 25% contained wastes) and ~3000 cubic yards of contaminated soil. The soil was stockpiled on-site for future treatment. Also, ~40K gallons of contaminated wastewater/decontamination water were left in tanks and other containers on-site.	John Halverson
5/7/1999	Interim Removal Action Approved	ADEC received the Addendum to the 1998 Workplan, by Jacobs, dated May 1999. The plan calls for continued drum removal and site characterization; it also described work planned for other FUDS around Cold Bay, if sufficient funding were available to implement it.	John Halverson
10/12/1999	Site Ranked Using the AHRM	Ranked site based on existing data; high priority.	John Halverson
3/28/2000	Update or Other Action	ADEC reviewed and commented on the draft Removal Action Report, by Jacobs Engineering dated February 2000. The report documents additional drum removal, contaminated soil excavation, removal of four underground storage tanks (USTs) adjacent to the runway, and removal of a portion of some fuel pipelines. Further characterization and cleanup is needed in most of these areas.	John Halverson
11/21/2000	Update or Other Action	ADEC reviewed ETC soil treatment data for batches 1-6 and 8 and issued an acceptance letter.	Debra Caillouet
12/27/2000	Update or Other Action	ADEC reviewed ETC soil treatment data for batches 7 and 9 and issued an acceptance letter.	Debra Caillouet
1/3/2001	Update or Other Action	ADEC reviewed ETC soil treatment data for batch 11 and issued an acceptance letter.	Debra Caillouet
2/5/2001	Update or Other Action	ADEC reviewed ETC soil treatment data for batches 10, 12 and 13 and issued an acceptance letter.	Debra Caillouet
5/17/2001	Meeting or Teleconference Held	A public meeting was held 5/10/2001 in Cold Bay with the Corp, ADEC and Jacobs Engineering to discuss the status and planned activities for the sites.	Debra Caillouet
12/19/2001	Site Characterization Workplan Approved	The draft RI/FS workplan for the Beach Seep and Drum Disposal Area was reviewed and accepted with minor comments.	Debra Caillouet
12/19/2001	Interim Removal Action Approved	Final report for soil treatment of materials excavated during drum removal actions accepted.	Debra Caillouet
4/25/2002	Update or Other Action	Staff participated in a site inspection and public meeting with the Army Corp of Engineers and Jacobs Engineering. The Beach Seep area is still present but there was no evidence of free product on the beach or seeping out of the bluff. The tide was out at the time we were on-site and we were able to inspect the tidal flat area and found no evidence of fuel product or harm to the near marine areas. We also reviewed the Stapp Creek area and the asphalt seeps in preparation for the RI work that will begin there next week. Jacobs presented to the community an overview of the activities that will be occurring with the RI and the following FS. The information was well received and there were only questions to clarify some of the activities.	Debra Caillouet
11/19/2002	Site Characterization Report Approved	Geophysical survey in suspect areas in the BSA revealed no remaining sources. Test pitting in conjunction with sediment screening and sampling, on the beach showed the active, visible seep is currently approximately 100 feet long. Sediment contamination was found to extend about 250 feet and a new monitoring well, MW-15 was installed at the northern extent of the contamination (preexisting MW9 is located near the southern extent of contamination. A second monitoring well, MW14 was installed south of the extent of sediment contamination in an attempt to determine the dissolved phase boundary of groundwater contamination on the beach. Inland test pitting and soil boring activities, along with soil screening and sampling, show the previously removed diesel aboveground storage tank was the source of extensive hydrocarbon contamination from ground surface to groundwater. Surface soil sampling in the dry streambed and gully found that area to have low levels of contamination. Groundwater sampling and free product surveys showed free product on the beach and in some inland wells, and extensive dissolved phase hydrocarbon contamination throughout the BSA. Based on the extensive contamination in the BSA groundwater, which is being fed by the remaining soil contamination under the removed AST and the contaminated soil upgradient in the DDA, continued operation of the high vacuum extraction system to remediate groundwater contamination is recommended. A pilot test is currenly being conducted on the beach to evaluate various other remedial options to prevent discharge of contamination to the marine environment. Evaluation of pilot test results and other remedial alternatives under the FS is recommended. In the Drum Disposal Area expansive geophysical surveying confirmed by test pitting at suspicious geophysical anomalies, reveled no remaining sources in the DDA. Test pitting and soil borings, in conjunction with soil screening and sampling, were used to define the vertical and lateral extents of contamination beyond the perimeters of previously remediated areas DDA-A through -D, the Western Pipeline Excavation and the Western Anomaly Excavation. Subsurface lateral soil contamination limits were determined for all previous excavations. Soil contamination was found to extend to groundwater below DDA-A, DDA-D and the WAX areas, and monitoring wells were installed in those locations. Surface soil sampling was performed at truck fills TF#1 and #2, the Pump House and the area near the Reave Avenue and Baranov Road intersection and no notable contamination was discovered. Groundwater sampling and free product surveys showed extensive hydrocarbon contamination throughout the middle to eastern extent of the DDA's groundwater. Remaining pipelines in the area were found to be extremely discontinous, empty and clean and were abandoned in place. Based on the extensive groundwater and subsurface soil contamintion, contnued operation of the HVE is recommended. Evaluation of remdial options under the FS is recommended.	Debra Caillouet
3/17/2004	Update or Other Action	A draft proposed plan was reviewed and significant comments returned to the USACE. In general DEC agrees with the proposed actions, but believes the level of detail and the readability of the proposed plan should be improved.	Debra Caillouet
4/22/2004	Proposed Plan	The Proposed Plan for Six Formerly Used Defense Sites at Fort Randall, Cold Bay, Alaska was approved by the Acting Section Manager, John Halverson. The public comment period is April 26 to May 21 2004. A public meeting will be held May 3 in Cold Bay.	Debra Caillouet
5/3/2004	Meeting or Teleconference Held	A public meeting was held in Cold Bay to present the Proposed Plan to the community.	Debra Caillouet
8/23/2004	Update or Other Action	File number changed from 2538.38.006 to 2538.38.019	Sarah Cunningham
6/2/2005	Update or Other Action	A bioventing pilot test work plan was approved. The fieldwork is scheduled to begin in September of this year and continue for six weeks after which a report discussing the effectiveness of bioventing at the drum disposal/beach seep area will be prepared. The intention is to use the results of this study to design the full-scale bioventing treatment system.	Debra Caillouet
6/24/2005	Update or Other Action	A Soil Vapor Extraction Pilot Test Work Plan was recieved and comments submitted to the Corps	Debra Caillouet
7/26/2005	Update or Other Action	Staff reviewed the second interim final decision document and forwarded draft comments to supervisor	Debra Caillouet
7/28/2005	Update or Other Action	Staff reviewed the semi-annual groundwater report	Debra Caillouet
8/29/2005	Record of Decision	A letter concurring with the final Decision Document was signed by John Halverson and sent to the Corps	Debra Caillouet
9/1/2005	Update or Other Action	The final work plan for the Cold Bay, Fort Randall Drum Disposal Area/Beach Seep Area Soil Vapor Extraction (SVE) Pilot Test was approved. The implementation of this work plan will begin in September 2005 with the installation of the test well and monitoring points. The SVE pilot test results will be used in the design of the remedy for the formerly used defense site.	Debra Caillouet
5/9/2006	Update or Other Action	Staff approved the final report on the Bioventing and Soil Vapor Extraction Pilot Study for the Beach Seep and Drum Disposal area.	Debra Caillouet
5/17/2006	Cleanup Plan Approved	Staff reviewed and approved the Excavation and Thermal Treatment Work Plan for Beach Seep and Drum Disposal Area, the East West Runway and Stapp Creek	Debra Caillouet
11/8/2006	Update or Other Action	Staff reviewed the biannual gw report. All montioring wells and extraction wells either contained free product or contamination above Table C values except two wells upgradient from the site. A comment letter was sent.	Debra Caillouet
1/8/2007	Update or Other Action	Staff reviewed and prepared significant comment on the draft 2006 Environmental Cleanup Report	Debra Caillouet
8/16/2007	Update or Other Action	Staff approved the 2006 Environmental Cleanup Report. The report documents the removal of contaminated soil to the depths and contaminant levels defined in the Decision Document. The soil was treated on-site and used to backfill the excavations. This action will now be followed by bioventing and soil vapor extraction to reach the final cleanup levels.	Debra Caillouet
10/11/2007	Exposure Tracking Model Ranking		Debra Caillouet
3/27/2008	Update or Other Action	Staff sent the Corps comment on the 07 Groundwater Monitoring Report.	Debra Caillouet
5/7/2008	Update or Other Action	Comments were sent to the Corps for the Bioventing and SVE/HVE Operations and Maintenance Manuals.	Debra Caillouet
6/17/2008	Site Characterization Report Approved	2007 Cold Bay Groundwater Monitoring Report, Fort Randall Formerly Used Defense Site, Final June 2008 The report incorporates acceptable responses to comments previously supplied by the Alaska Department of Environmental Conservation and is approved.	Debra Caillouet
8/25/2008	Update or Other Action	The HVE?SVE Operations and Maintenance Manual, Field Sampling Plan and Quality Assurance Project Plan were approved	Debra Caillouet
10/13/2008	Document, Report, or Work plan Review - other	The draft 2008 Groundwater Monitoring report was reviewed and minor comment sent to the USACE.	Debra Caillouet
12/1/2008	Document, Report, or Work plan Review - other	The final 2008 Groundwater monitoring report was accepted.	Debra Caillouet
2/24/2010	Document, Report, or Work plan Review - other	Comment was sent to the Corps on the draft 2009 Monitoring Report	Debra Caillouet
12/21/2010	Document, Report, or Work plan Review - other	Oct/Nov 2010 Bimonthly report	Debra Caillouet
2/24/2011	Update or Other Action	The Declaration of Project Closure Decision for Formerly Used Defense Site CON/HTRW Project Fort Randall Cold Bay ACS Com Site, Cold Bay, Alaska, F10AK084501 was signed for the four sites under this project. Drum Disposal Area/Beach Seep, Stapp Creek, East-West Runway and the CWB, Collasped Wooden Building.	Debra Caillouet
6/10/2011	Document, Report, or Work plan Review - other	2010 Cold Bay Annual Report, Draft May 2011, Fort Randall Formerly Used Defense Site. Comments sent, the main concern is increasing contaminataion at the EWR.	Debra Caillouet
8/30/2011	Site Visit		Debra Caillouet
9/2/2011	Document, Report, or Work plan Review - other	2009 Cold Bay Annual Report, Fort Randall Formerly Used Defense Site, Final August 2011	Debra Caillouet
4/25/2012	Document, Report, or Work plan Review - other	2010 Cold Bay Annual Report, Fort Randall Formerly Used Defense Site, Final April 2012	Debra Caillouet
12/3/2012	Update or Other Action	HVE/SVE Operations and Maintenance Manual, Fort Randall, Cold Bay Alaska, Final Revision 2, November 2012	Debra Caillouet
12/7/2012	Document, Report, or Work plan Review - other	2011 Cold Bay Annual Report, Fort Randall Formerly Used Defense Site, Final December 2012	Debra Caillouet
12/21/2012	Document, Report, or Work plan Review - other	Sampling Guidelines Supplement to the HVE/SVE Operation and Maintenance Manual, Draft-Revision 2, December 2012	Debra Caillouet
4/22/2013	Document, Report, or Work plan Review - other	Quarterly monitoring report reviewed.	Debra Caillouet
7/17/2013	Document, Report, or Work plan Review - other	2012 Cold Bay Annual Report, Fort Randall Formerly Used Defense Site, Cold Bay Alaska, Final July 2013	Debra Caillouet
6/12/2014	Document, Report, or Work plan Review - other	Comment sent on the Draft Work Plan Addendum, HVE O&M Manual and Bioventing O&M Fort Randall, Cold Bay AK June 2014	Debra Caillouet
6/12/2014	Document, Report, or Work plan Review - other	Comment sent on the Draft Work Plan Addendum, HVE O&M Manual and Bioventing O&M Fort Randall, Cold Bay AK June 2014	Debra Caillouet
10/16/2014	Document, Report, or Work plan Review - other	Work Plan Addendum, HVE O&M Manual and Bioventing O&M Fort Randall, Cold Bay AK Revision 1, September 2014 approved	Debra Caillouet
11/10/2014	Document, Report, or Work plan Review - other	2013 Cold Bay Annual Report, Fort Randall, Final November 2014	Debra Caillouet
3/26/2015	Document, Report, or Work plan Review - other	Cold Bay Fort Randall HTRW Operations and Maintenance, 2014 Annual Report, Revision 0, March 2015 The report presents the results of annual groundwater sampling events at the East West Runway (EWR) and the Beach Seep Area. The results showed that free product and groundwater contamination by petroleum products is still present in both areas. The visible stain on the beach appears to continue to get smaller but is still visible and the monitoring wells on the beach contain diesel range organics above cleanup levels. 2014 was the sixteenth year of treatment system operation at the Beach Seep Area. The soil vapor extraction and bioventing systems continue to remove petroleum contamination from the site with an estimated total of 92,000 pounds total over the sixteen years.	Debra Caillouet
7/21/2015	Update or Other Action	2014 Operations and Maintenance Report. The volume of free product recovered this period (225 gallons) was higher than in 2013. The average monthly recovery for this reporting period was 17 gallons per month, which was lower than the operational goal of 20 gallons per month. Vapor-phase recovery decreased from last year. The contaminant removal rate dropped from 8.4 pounds per operational day in 2013, to 1.6 pounds per operational day in 2014.The visibility of surface staining at the BSA has continued to diminish in the past year, indicating that the HVE system is still effectively removing free product and preventing discharge to the beach. The 2014 stain area is smaller than that of 2013.	Debra Caillouet
6/22/2016	Site Visit	Performed a site visit at all Cold Bay FUDS sites and attended a public meeting to present upcoming work.	Monte Garroutte
9/2/2016	Document, Report, or Work plan Review - other	DEC approved the 2015 Annual Report. The HVE system treated and reinjected 188,562 gallons of groundwater and recovered approximately 75 gallons of free product. In comparison to the previous operational year, there was a decrease in hours of operation and in gallons of free product recovered. It was recommended that an alternative operational strategy be implemented as an attempt to maximize the efficiency of the system while continuing to maintain a high free product recovery rate. The bioventing blower operated on scheduled rotation for 291 days of the 365-day performance period and contributed to the biodegradation of an estimated 370 gallons of hydrocarbon contamination.	Monte Garroutte
8/23/2017	Site Visit	On August 23-24, DEC performed a site visit at all the Cold Bay Fort Randall FUDS sites: Beach Seeps Area (BSA)/Drum Disposal Area (DDA), UST 1 (formerly referred to as E-West Runway) and Milepost 4 (MP4) and Milepost 5 (MP5) areas. While visiting the High-Vapor Extraction (HVE) system in the BSA/DDA, DEC was notified that the HVE system had been experiencing mechanical problems and had been offline since June 2017. The HVE system was restored on August 22, 2017 but went offline again on August 23, 2017. At the time of the site visit, the contractor was working to restore the HVE system. In addition to the site visits, DEC also attended a public meeting to discuss results from previous years work and go over upcoming work.	Erica Blake
9/19/2017	Document, Report, or Work plan Review - other	DEC has approved the 'Final 2016 Cold Bay Annual Report' dated August 2017, for Cold Bay Fort Randall Beach Seeps and E-West Runway sites. The final report describes the 2016 operations and maintenance (O&M) for the high-vacuum extraction (HVE) and bioventing treatment systems. The operational readiness of the HVE system dropped between 2015 and 2016, primarily due to the failure of both vacuum pumps and excessive turnaround time for repairs. It was recommended the HVE system should operate under a pulsing strategy since a 4-month forced system shutdown was effective at removing higher quantities of product. The 2016 bioventing activities (soil-gas monitoring), indicated lower levels of microbial activity were occurring across the extent of the drum disposal area (DDA) in comparison to previous years. Monitoring well results show diesel range organics (DRO) above cleanup levels across the DDA/Beach Seeps area. Stain along the beach continues to be visible. The final document also includes monitoring well results from the E-West Runway site (UST 1). DRO, gasoline range organics (GRO) and lead remain above cleanup levels.	Erica Blake
10/10/2017	Document, Report, or Work plan Review - other	DEC provided a conditional approval on a work plan letter by the US Army Corp of Engineers that described upcoming fieldwork at the Beach Seeps/Drum Disposal Areas (BSA/DDA) and the UST 1 sites (formerly East-West Runway). Upcoming field activities are; groundwater sampling at all sites, measuring free product and water levels from the UST 1 monitoring wells, conduct soil gas monitoring from the soil gas probe locations and observe the beach seep stain. Upon completion of the annual sampling, broken components on the high-vapor extraction (HVE) system will be repaired and replaced so the system can be restored.	Erica Blake
2/20/2018	Meeting or Teleconference Held	DEC met with USACE staff and contractors for a meeting regarding cleanup status at the Cold Bay-Fort Randall sites. Also discussed at the meeting were upcoming documents for DEC to review.	Erica Blake
4/4/2018	Document, Report, or Work plan Review - other	DEC approved two technical memorandums dated March 2018. Task 8 – HVE Pulsing Strategy, Field Data Collection and Assessment summarized results from the 2017 activities; pulsing pilot study, installation of two water-level transducers at the Drum Disposal Area (DDA)/Beach Seeps Area (BSA), weekly high-vacuum extraction (HVE) straw tip adjustments, passive skimmers and performance of the bioventing system. Task 9 – Free Product Removal Alternatives Evaluation summarized potential remedial alternatives, emphasizing on removing product as quickly and efficiently as possible and discussed and assessed well redevelopment, new/additional well installations, low-energy passive barriers, and additional computer modeling. DEC requested work plans be sent for review prior to implementation of any of the remedial alternatives discussed in the Task 9 technical memorandum.	Erica Blake
7/18/2018	Spill Transferred from Prevention Preparedness and Response Program	Spill transferred by PPRP staff Cynthia Kirkham. Spill no. 17259919801; spill date = 7/13/17; substance = diesel and water from treatment system; quantity = ~89 gallons; source = failed centrifuge prevented system from shutting off at HVE shack; lat/long: 55.200483, -162.7007, Datum = WGS84, collected 7/6/18.	Mitzi Read
8/6/2018	Document, Report, or Work plan Review - other	DEC approved the 2017 Cold Bay Annual Report dated July 2018. The document describes 2017 operations and maintenance (O&M) at the Cold Bay high-vacuum extraction (HVE) and bioventing treatment systems and annual groundwater monitoring at the Drum Disposal Area (DDA)/Beach Seeps Area (BSA) and the Underground Storage Tank (UST) 1 site (formerly referred to as East-West Runway (EWR). Nine of the 27 monitoring wells at the DDA/BSA contained free product. Only two wells at the EWR site contained free product. DDA/BSA results indicate diesel range organics (DRO), residual range organics (RRO), benzene and total aromatic hydrocarbons (TAqH) remain above their respective cleanup levels. UST 1 results indicate DRO, gasoline range organics (GRO), ethylbenzene and lead to remain above their respective cleanup levels.	Erica Blake
2/25/2019	Document, Report, or Work plan Review - other	ADEC approved the "FUDS 2019 Revised Cold Bay Operations and Maintenance Work Plan Addendum, Fort Randall, Cold Bay, Alaska". This revised work plan addendum (WPA) details general operations and maintenance (O&M) of onsite remediation systems, biannual and annual sampling, and general reporting for the Drum Disposal Area (DDA)/Beach Seep Area (BSA) and Underground Storage Tank (UST) 1 (formerly the East-West Runway [EWR] site) project sites at the Fort Randall Formerly Used Defense Site (FUDS) (Property No. F10AK0845-02) in Cold Bay, Alaska (Figure 1-1). This revised 2019 WPA supplements the 2018 WPA (U.S. Army Corps of Engineers [USACE] 2018c).	Darren Mulkey
4/23/2019	Document, Report, or Work plan Review - other	ADEC approved the "2018 Cold Bay Annual Report, Fort Randall, Cold Bay, Alaska". This report summarizes 2018 operations and maintenance (O&M) for the Cold Bay highvacuum extraction (HVE) and bioventing treatment systems, HVE system upgrades, and the annual groundwater monitoring results at the former Fort Randall site in Cold Bay, Alaska. The performance period of January through December 2018 was Year 20 of O&M for the HVE system and Year 11 of O&M for the bioventing treatment system.	Darren Mulkey
8/29/2019	Document, Report, or Work plan Review - other	This revised work plan addendum (WPA) details general operations and maintenance (O&M) of onsite remediation systems, biannual and annual sampling, and general reporting for the Drum Disposal Area (DDA)/Beach Seep Area (BSA) and Underground Storage Tank (UST) 1 (formerly the East-West Runway [EWR] site) project sites at the Fort Randall Formerly Used Defense Site (FUDS) (Property No. F10AK0845-02) in Cold Bay, Alaska (Figure 1-1). This revised 2019 WPA supplements the 2018 WPA (U.S. Army Corps of Engineers [USACE] 2018c).	Darren Mulkey
3/31/2020	Document, Report, or Work plan Review - other	The U.S. Army Corps of Engineers (USACE) completed the first Periodic Review (PR) of the selected remedies for the Drum Disposal Area, Beach Seep Area, and the Underground Storage Tank-1 site (part of the former East-West Runway site) at the Fort Randall Formerly Used Defense Site in Cold Bay, Alaska. The purpose of this review is to ensure the remedies selected in the Decision Document (USACE 2005b) are performing effectively and continue to be protective of human health and the environment.	Darren Mulkey
5/26/2020	Institutional Control Periodic Reporting	2019 Cold Bay Annual Report - Fort Randall. This report summarizes the annual operations and maintenance (O&M) and monitoring activities at the Drum Disposal Area (DDA)/Beach Seep Area (BSA) in Cold Bay, Alaska, for the period of January through December 2019. These sites are located at the Fort Randall Formerly Used Defense Site (FUDS) No. F10AK0845-02.	Darren Mulkey
2/23/2023	Document, Report, or Work plan Review - other	DEC received a Findings and Determination of Eligibility (FDE) for the Cold Bay-Fort Randall (F10AK0845) Formerly Used Defense Site (FUDS) on February 1, 2023. The document was reviewed, and DEC concurs with the findings described in the FDE.	Erica Blake
10/17/2023	Document, Report, or Work plan Review - other	DEC provided comments for the 2023 Cold Bay Operations and Maintenance Work Plan Fort Randall Cold Bay, Alaska to the U.S. Army Corp of Engineers. Proposed field activities include biannual soil gas monitoring and discharge vapor gas sampling, a periodic sampling of treated water, a Beach Seep Area (BSA) survey and assessment of free product accumulation, datalogger downloads, and transmissivity testing at the Drum Disposal Area (DDA) and BSA. These events are to ensure that the long-term monitoring and treatment of the DDA and BSA sites continue to remediate the area.	Brian Watts
10/23/2023	Document, Report, or Work plan Review - other	Approval letter for 2023 Cold Bay Operations and Maintenance Work Plan Fort Randall Cold Bay, Alaska was sent. Proposed field activities include biannual soil gas monitoring and discharge vapor gas sampling, a periodic sampling of treated water, a Beach Seep Area (BSA) survey and assessment of free product accumulation, datalogger data downloads, and transmissivity testing at the Drum Disposal Area (DDA) and BSA. These events are to ensure that the long-term monitoring and treatment of the DDA and BSA sites continue to remediate the area. All comments and necessary changes were acceptable by DEC.	Brian Watts
7/31/2024	Document, Report, or Work plan Review - other	DEC has reviewed the 2023 Cold Bay Annual Report Fort Randall Cold Bay, Alaska Draft Dated June 2024. The document describes 2023 operations and maintenance (O&M) for the high-vacuum extraction (HVE) and bioventing systems as well as groundwater monitoring for the 2023 field season. The HVE system was not used for product extraction in 2023. The bioventing system remained off for the 2023 operational year. Eight samples were collected for groundwater monitoring analysis. From the analyses performed there were exceedances of diesel range organics (DRO), benzene, naphthalene, total aromatic hydrocarbons (TAH), and total aqueous hydrocarbons (TAqH). The report recommends continued monitoring at the site.	Brian Watts
7/31/2024	Document, Report, or Work plan Review - other	DEC has reviewed the 2024 Revised Cold Bay Operations And Maintenance Work Plan Addendum Fort Randall Cold Bay, Alaska Dated June 2024. The work plan addendum describes events proposed for 2024, including: downloading data from dataloggers, treated water sampling to ensure discharge water is below DEC cleanup levels, soil gas monitoring, discharge vapor gas sampling, a sitewide free product survey, beach seep area (BSA) survey, transmissivity testing, and groundwater monitoring.	Brian Watts
8/22/2024	Document, Report, or Work plan Review - other	DEC provided comments for the "Data Gathering Assessment Work Plan, Fort Randall Formerly Used Defense Site Cold Bay, Alaska (dated August 2024)" to the U.S. Army Corp of Engineers. The draft work plan proposes activities to collect additional data to characterize soil and groundwater contamination related to historical fuel releases at the former Fort Randall site in Cold Bay, Alaska. Analytical results collected under this work plan will be used to asses and evaluate the current remedy in place and help determine next steps for cleanup in Cold Bay.	Erica Blake
9/18/2024	Document, Report, or Work plan Review - other	DEC provided responses to comments for the 2024 Revised Cold Bay Operations and Maintenance Work Plan Addendum, Fort Randall Cold Bay, Alaska (dated June 2024)" to the U.S. Army Corp of Engineers. The document summarizes the scope of work for 2024 operations and maintenance, and biannual and annual sampling, and lists the wells and analytes planned for 2024 groundwater sampling. The document also describes an approach for completing a passive aeration pilot study to aerate the subsurface by harnessing wind and energy. A clean final work plan addendum was requested to complete a comment backcheck, prior to DEC providing formal approval.	Erica Blake
9/18/2024	Document, Report, or Work plan Review - other	DEC provided responses to comments for the "2023 Cold Bay Annual Report Fort Randall Cold Bay, Alaska, Draft (dated June 2024)" to the U.S. Army Corp of Engineers. The report recommends continued monitoring during the 2024 performance period by; measuring free product, collecting free product levels from extraction wells on a quarterly basis, and use static groundwater elevation data from HOBO data loggers and deployed transducers to model seasonal groundwater trends, tidal induced fluctuation, hydraulic conductivity, and product migration. Annual groundwater monitoring is planned to continue in 2024.	Erica Blake
10/16/2024	Compliance Advisory Letter	DEC provided a Compliance Advisory Notification concerning site work conducted for the Data Gathering Assessment Work Plan, Fort Randall Formerly Used Defense Site Cold Bay, Alaska dated August 2024. The letter alleges that the U.S. Army Corp of Engineers (USACE) and Jacobs began site characterization activities in Cold Bay, Alaska without an approved work plan as required by Alaska regulations 18 AAC 75.335(b). DEC requested a written response addressing the concerns by November 16, 2024.	Dennis Shepard
10/29/2024	Document, Report, or Work plan Review - other	DEC provided approval for the Data Gathering Assessment Work Plan, Fort Randall Formerly Used Defense Site Cold Bay, Alaska (dated October 2024) to the U.S. Army Corp of Engineers. The document describes proposed activities to collect additional data to characterize soil and groundwater contamination related to a historical diesel fuel release in Cold Bay-Fort Randall, Alaska. Analytical soil, groundwater, marine water, and sediment data will be used to update the conceptual site model. Fieldwork under this work plan, now approved, was completed August-Sept 2024. However, the work plan meets appropriate regulatory requirements.	Erica Blake

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Action

Description

DEC Staff

4/3/1996

Update or Other Action

FAA submitted a Site Cleanup and Investigation Report for the Cold Bay FAA Station, by ENSR, dated February 1996. The report documents free phase petroleum hydrocarbons on the water table beneath a former military fuel tank and a sheen on the beach below it. The report states the FAA had not used the tank and that it should be referred to Corps of Engineers for follow-up under the FUDS program.

John Halverson

1/31/1997

Update or Other Action

Corps submitted a FUDS Eligibility Report for the Beach Seep Area and Former Fuel Storage Tank the World War II Drum Disposal Area and Aviation Gasoline UST Area, dated January 1997, by Jacobs Engineering. It recommends the Corps undertake action at each site through the FUDS program.

John Halverson

2/19/1997

Site Added to Database

Site added by Shannon and Wilson, Inc.

S&W-Miner

2/19/1997

Preliminary Assessment Approved

PA action added by Shannon and Wilson, Inc., on 2/19/1997. Based on FUDS Site Summary Sheet, PA started 08/31/95; no completion date. RD scheduled to start October 2000, RA scheduled to start October 2001.

S&W-Miner

5/12/1998

Interim Removal Action Approved

ADEC concurred with the Corps of Engineers 1998 Workplan for the World War II Drum Disposal Area, Stapp Creek and the Beach Seep Area, by Jacobs, 1998. It calls for excavation of drums and contaminated soil from the drum disposal area and installation of a high vacuum extraction system to recover fuel off the groundwater.

John Halverson

9/24/1998

Update or Other Action

Corps submitted "Site Investigation and Interim Removal Action Report - Beach Seep Area and Former Fuel Storage Tank and Drum Disposal Area; Aviation Gasoline USTs Area" by Jacobs Engineering, dated August 1998. It documents site characterization work including installation of 4 monitoring wells at this site, more than three feet of fuel was measured in two of the wells. It also indicated that the drum disposal area may be linked with the beach seep and be a contributing source of the sheening. Recommends that the drums be removed and a free product recovery system be installed.

John Halverson

1/14/1999

Update or Other Action

ADEC received the final High Vacuum Extraction System Construction Report.

John Halverson

3/17/1999

Update or Other Action

ADEC sent the Corps a letter with comments on the draft 1998 Removal Action Report, World War II Drum Disposal Area, Stapp Creek Pipeline, and Beach Seep Area, prepared by Jacobs Eng.

John Halverson

5/4/1999

Update or Other Action

ADEC received the 1998 Removal Action Report, World War II Drum Disposal Area, Stapp Creek Pipeline, and Beach Seep Area, by Jacobs, dated May 1999. The report documents installation of the high vacuum extraction system above the beach seep and excavation of ~2140 drums (approximately 25% contained wastes) and ~3000 cubic yards of contaminated soil. The soil was stockpiled on-site for future treatment. Also, ~40K gallons of contaminated wastewater/decontamination water were left in tanks and other containers on-site.

John Halverson

5/7/1999

Interim Removal Action Approved

ADEC received the Addendum to the 1998 Workplan, by Jacobs, dated May 1999. The plan calls for continued drum removal and site characterization; it also described work planned for other FUDS around Cold Bay, if sufficient funding were available to implement it.

John Halverson

10/12/1999

Site Ranked Using the AHRM

Ranked site based on existing data; high priority.

John Halverson

3/28/2000

Update or Other Action

ADEC reviewed and commented on the draft Removal Action Report, by Jacobs Engineering dated February 2000. The report documents additional drum removal, contaminated soil excavation, removal of four underground storage tanks (USTs) adjacent to the runway, and removal of a portion of some fuel pipelines. Further characterization and cleanup is needed in most of these areas.

John Halverson

11/21/2000

Update or Other Action

ADEC reviewed ETC soil treatment data for batches 1-6 and 8 and issued an acceptance letter.

Debra Caillouet

12/27/2000

Update or Other Action

ADEC reviewed ETC soil treatment data for batches 7 and 9 and issued an acceptance letter.

Debra Caillouet

1/3/2001

Update or Other Action

ADEC reviewed ETC soil treatment data for batch 11 and issued an acceptance letter.

Debra Caillouet

2/5/2001

Update or Other Action

ADEC reviewed ETC soil treatment data for batches 10, 12 and 13 and issued an acceptance letter.

Debra Caillouet

5/17/2001

Meeting or Teleconference Held

A public meeting was held 5/10/2001 in Cold Bay with the Corp, ADEC and Jacobs Engineering to discuss the status and planned activities for the sites.

Debra Caillouet

12/19/2001

Site Characterization Workplan Approved

The draft RI/FS workplan for the Beach Seep and Drum Disposal Area was reviewed and accepted with minor comments.

Debra Caillouet

12/19/2001

Interim Removal Action Approved

Final report for soil treatment of materials excavated during drum removal actions accepted.

Debra Caillouet

4/25/2002

Update or Other Action

Staff participated in a site inspection and public meeting with the Army Corp of Engineers and Jacobs Engineering. The Beach Seep area is still present but there was no evidence of free product on the beach or seeping out of the bluff. The tide was out at the time we were on-site and we were able to inspect the tidal flat area and found no evidence of fuel product or harm to the near marine areas. We also reviewed the Stapp Creek area and the asphalt seeps in preparation for the RI work that will begin there next week. Jacobs presented to the community an overview of the activities that will be occurring with the RI and the following FS. The information was well received and there were only questions to clarify some of the activities.

Debra Caillouet

11/19/2002

Site Characterization Report Approved

Geophysical survey in suspect areas in the BSA revealed no remaining sources. Test pitting in conjunction with sediment screening and sampling, on the beach showed the active, visible seep is currently approximately 100 feet long. Sediment contamination was found to extend about 250 feet and a new monitoring well, MW-15 was installed at the northern extent of the contamination (preexisting MW9 is located near the southern extent of contamination. A second monitoring well, MW14 was installed south of the extent of sediment contamination in an attempt to determine the dissolved phase boundary of groundwater contamination on the beach. Inland test pitting and soil boring activities, along with soil screening and sampling, show the previously removed diesel aboveground storage tank was the source of extensive hydrocarbon contamination from ground surface to groundwater. Surface soil sampling in the dry streambed and gully found that area to have low levels of contamination. Groundwater sampling and free product surveys showed free product on the beach and in some inland wells, and extensive dissolved phase hydrocarbon contamination throughout the BSA. Based on the extensive contamination in the BSA groundwater, which is being fed by the remaining soil contamination under the removed AST and the contaminated soil upgradient in the DDA, continued operation of the high vacuum extraction system to remediate groundwater contamination is recommended. A pilot test is currenly being conducted on the beach to evaluate various other remedial options to prevent discharge of contamination to the marine environment. Evaluation of pilot test results and other remedial alternatives under the FS is recommended. In the Drum Disposal Area expansive geophysical surveying confirmed by test pitting at suspicious geophysical anomalies, reveled no remaining sources in the DDA. Test pitting and soil borings, in conjunction with soil screening and sampling, were used to define the vertical and lateral extents of contamination beyond the perimeters of previously remediated areas DDA-A through -D, the Western Pipeline Excavation and the Western Anomaly Excavation. Subsurface lateral soil contamination limits were determined for all previous excavations. Soil contamination was found to extend to groundwater below DDA-A, DDA-D and the WAX areas, and monitoring wells were installed in those locations. Surface soil sampling was performed at truck fills TF#1 and #2, the Pump House and the area near the Reave Avenue and Baranov Road intersection and no notable contamination was discovered. Groundwater sampling and free product surveys showed extensive hydrocarbon contamination throughout the middle to eastern extent of the DDA's groundwater. Remaining pipelines in the area were found to be extremely discontinous, empty and clean and were abandoned in place. Based on the extensive groundwater and subsurface soil contamintion, contnued operation of the HVE is recommended. Evaluation of remdial options under the FS is recommended.

Debra Caillouet

3/17/2004

Update or Other Action

A draft proposed plan was reviewed and significant comments returned to the USACE. In general DEC agrees with the proposed actions, but believes the level of detail and the readability of the proposed plan should be improved.

Debra Caillouet

4/22/2004

Proposed Plan

The Proposed Plan for Six Formerly Used Defense Sites at Fort Randall, Cold Bay, Alaska was approved by the Acting Section Manager, John Halverson. The public comment period is April 26 to May 21 2004. A public meeting will be held May 3 in Cold Bay.

Debra Caillouet

5/3/2004

Meeting or Teleconference Held

A public meeting was held in Cold Bay to present the Proposed Plan to the community.

Debra Caillouet

8/23/2004

Update or Other Action

File number changed from 2538.38.006 to 2538.38.019

Sarah Cunningham

6/2/2005

Update or Other Action

A bioventing pilot test work plan was approved. The fieldwork is scheduled to begin in September of this year and continue for six weeks after which a report discussing the effectiveness of bioventing at the drum disposal/beach seep area will be prepared. The intention is to use the results of this study to design the full-scale bioventing treatment system.

Debra Caillouet

6/24/2005

Update or Other Action

A Soil Vapor Extraction Pilot Test Work Plan was recieved and comments submitted to the Corps

Debra Caillouet

7/26/2005

Update or Other Action

Staff reviewed the second interim final decision document and forwarded draft comments to supervisor

Debra Caillouet

7/28/2005

Update or Other Action

Staff reviewed the semi-annual groundwater report

Debra Caillouet

8/29/2005

Record of Decision

A letter concurring with the final Decision Document was signed by John Halverson and sent to the Corps

Debra Caillouet

9/1/2005

Update or Other Action

The final work plan for the Cold Bay, Fort Randall Drum Disposal Area/Beach Seep Area Soil Vapor Extraction (SVE) Pilot Test was approved. The implementation of this work plan will begin in September 2005 with the installation of the test well and monitoring points. The SVE pilot test results will be used in the design of the remedy for the formerly used defense site.

Debra Caillouet

5/9/2006

Update or Other Action

Staff approved the final report on the Bioventing and Soil Vapor Extraction Pilot Study for the Beach Seep and Drum Disposal area.

Debra Caillouet

5/17/2006

Cleanup Plan Approved

Staff reviewed and approved the Excavation and Thermal Treatment Work Plan for Beach Seep and Drum Disposal Area, the East West Runway and Stapp Creek

Debra Caillouet

11/8/2006

Update or Other Action

Staff reviewed the biannual gw report. All montioring wells and extraction wells either contained free product or contamination above Table C values except two wells upgradient from the site. A comment letter was sent.

Debra Caillouet

1/8/2007

Update or Other Action

Staff reviewed and prepared significant comment on the draft 2006 Environmental Cleanup Report

Debra Caillouet

8/16/2007

Update or Other Action

Staff approved the 2006 Environmental Cleanup Report. The report documents the removal of contaminated soil to the depths and contaminant levels defined in the Decision Document. The soil was treated on-site and used to backfill the excavations. This action will now be followed by bioventing and soil vapor extraction to reach the final cleanup levels.

Debra Caillouet

10/11/2007

Exposure Tracking Model Ranking

Debra Caillouet

3/27/2008

Update or Other Action

Staff sent the Corps comment on the 07 Groundwater Monitoring Report.

Debra Caillouet

5/7/2008

Update or Other Action

Comments were sent to the Corps for the Bioventing and SVE/HVE Operations and Maintenance Manuals.

Debra Caillouet

6/17/2008

Site Characterization Report Approved

2007 Cold Bay Groundwater Monitoring Report, Fort Randall Formerly Used Defense Site, Final June 2008 The report incorporates acceptable responses to comments previously supplied by the Alaska Department of Environmental Conservation and is approved.

Debra Caillouet

8/25/2008

Update or Other Action

The HVE?SVE Operations and Maintenance Manual, Field Sampling Plan and Quality Assurance Project Plan were approved

Debra Caillouet

10/13/2008

Document, Report, or Work plan Review - other

The draft 2008 Groundwater Monitoring report was reviewed and minor comment sent to the USACE.

Debra Caillouet

12/1/2008

Document, Report, or Work plan Review - other

The final 2008 Groundwater monitoring report was accepted.

Debra Caillouet

2/24/2010

Document, Report, or Work plan Review - other

Comment was sent to the Corps on the draft 2009 Monitoring Report

Debra Caillouet

12/21/2010

Document, Report, or Work plan Review - other

Oct/Nov 2010 Bimonthly report

Debra Caillouet

2/24/2011

Update or Other Action

The Declaration of Project Closure Decision for Formerly Used Defense Site CON/HTRW Project Fort Randall Cold Bay ACS Com Site, Cold Bay, Alaska, F10AK084501 was signed for the four sites under this project. Drum Disposal Area/Beach Seep, Stapp Creek, East-West Runway and the CWB, Collasped Wooden Building.

Debra Caillouet

6/10/2011

Document, Report, or Work plan Review - other

2010 Cold Bay Annual Report, Draft May 2011, Fort Randall Formerly Used Defense Site. Comments sent, the main concern is increasing contaminataion at the EWR.

Debra Caillouet

8/30/2011

Site Visit

Debra Caillouet

9/2/2011

Document, Report, or Work plan Review - other

2009 Cold Bay Annual Report, Fort Randall Formerly Used Defense Site, Final August 2011

Debra Caillouet

4/25/2012

Document, Report, or Work plan Review - other

2010 Cold Bay Annual Report, Fort Randall Formerly Used Defense Site, Final April 2012

Debra Caillouet

12/3/2012

Update or Other Action

HVE/SVE Operations and Maintenance Manual, Fort Randall, Cold Bay Alaska, Final Revision 2, November 2012

Debra Caillouet

12/7/2012

Document, Report, or Work plan Review - other

2011 Cold Bay Annual Report, Fort Randall Formerly Used Defense Site, Final December 2012

Debra Caillouet

12/21/2012

Document, Report, or Work plan Review - other

Sampling Guidelines Supplement to the HVE/SVE Operation and Maintenance Manual, Draft-Revision 2, December 2012

Debra Caillouet

4/22/2013

Document, Report, or Work plan Review - other

Quarterly monitoring report reviewed.

Debra Caillouet

7/17/2013

Document, Report, or Work plan Review - other

2012 Cold Bay Annual Report, Fort Randall Formerly Used Defense Site, Cold Bay Alaska, Final July 2013

Debra Caillouet

6/12/2014

Document, Report, or Work plan Review - other

Comment sent on the Draft Work Plan Addendum, HVE O&M Manual and Bioventing O&M Fort Randall, Cold Bay AK June 2014

Debra Caillouet

6/12/2014

Document, Report, or Work plan Review - other

Comment sent on the Draft Work Plan Addendum, HVE O&M Manual and Bioventing O&M Fort Randall, Cold Bay AK June 2014

Debra Caillouet

10/16/2014

Document, Report, or Work plan Review - other

Work Plan Addendum, HVE O&M Manual and Bioventing O&M Fort Randall, Cold Bay AK Revision 1, September 2014 approved

Debra Caillouet

11/10/2014

Document, Report, or Work plan Review - other

2013 Cold Bay Annual Report, Fort Randall, Final November 2014

Debra Caillouet

3/26/2015

Document, Report, or Work plan Review - other

Cold Bay Fort Randall HTRW Operations and Maintenance, 2014 Annual Report, Revision 0, March 2015 The report presents the results of annual groundwater sampling events at the East West Runway (EWR) and the Beach Seep Area. The results showed that free product and groundwater contamination by petroleum products is still present in both areas. The visible stain on the beach appears to continue to get smaller but is still visible and the monitoring wells on the beach contain diesel range organics above cleanup levels. 2014 was the sixteenth year of treatment system operation at the Beach Seep Area. The soil vapor extraction and bioventing systems continue to remove petroleum contamination from the site with an estimated total of 92,000 pounds total over the sixteen years.

Debra Caillouet

7/21/2015

Update or Other Action

2014 Operations and Maintenance Report. The volume of free product recovered this period (225 gallons) was higher than in 2013. The average monthly recovery for this reporting period was 17 gallons per month, which was lower than the operational goal of 20 gallons per month. Vapor-phase recovery decreased from last year. The contaminant removal rate dropped from 8.4 pounds per operational day in 2013, to 1.6 pounds per operational day in 2014.The visibility of surface staining at the BSA has continued to diminish in the past year, indicating that the HVE system is still effectively removing free product and preventing discharge to the beach. The 2014 stain area is smaller than that of 2013.

Debra Caillouet

6/22/2016

Site Visit

Performed a site visit at all Cold Bay FUDS sites and attended a public meeting to present upcoming work.

Monte Garroutte

9/2/2016

Document, Report, or Work plan Review - other

DEC approved the 2015 Annual Report. The HVE system treated and reinjected 188,562 gallons of groundwater and recovered approximately 75 gallons of free product. In comparison to the previous operational year, there was a decrease in hours of operation and in gallons of free product recovered. It was recommended that an alternative operational strategy be implemented as an attempt to maximize the efficiency of the system while continuing to maintain a high free product recovery rate. The bioventing blower operated on scheduled rotation for 291 days of the 365-day performance period and contributed to the biodegradation of an estimated 370 gallons of hydrocarbon contamination.

Monte Garroutte

8/23/2017

Site Visit

On August 23-24, DEC performed a site visit at all the Cold Bay Fort Randall FUDS sites: Beach Seeps Area (BSA)/Drum Disposal Area (DDA), UST 1 (formerly referred to as E-West Runway) and Milepost 4 (MP4) and Milepost 5 (MP5) areas. While visiting the High-Vapor Extraction (HVE) system in the BSA/DDA, DEC was notified that the HVE system had been experiencing mechanical problems and had been offline since June 2017. The HVE system was restored on August 22, 2017 but went offline again on August 23, 2017. At the time of the site visit, the contractor was working to restore the HVE system. In addition to the site visits, DEC also attended a public meeting to discuss results from previous years work and go over upcoming work.

Erica Blake

9/19/2017

Document, Report, or Work plan Review - other

DEC has approved the 'Final 2016 Cold Bay Annual Report' dated August 2017, for Cold Bay Fort Randall Beach Seeps and E-West Runway sites. The final report describes the 2016 operations and maintenance (O&M) for the high-vacuum extraction (HVE) and bioventing treatment systems. The operational readiness of the HVE system dropped between 2015 and 2016, primarily due to the failure of both vacuum pumps and excessive turnaround time for repairs. It was recommended the HVE system should operate under a pulsing strategy since a 4-month forced system shutdown was effective at removing higher quantities of product. The 2016 bioventing activities (soil-gas monitoring), indicated lower levels of microbial activity were occurring across the extent of the drum disposal area (DDA) in comparison to previous years. Monitoring well results show diesel range organics (DRO) above cleanup levels across the DDA/Beach Seeps area. Stain along the beach continues to be visible. The final document also includes monitoring well results from the E-West Runway site (UST 1). DRO, gasoline range organics (GRO) and lead remain above cleanup levels.

Erica Blake

10/10/2017

Document, Report, or Work plan Review - other

DEC provided a conditional approval on a work plan letter by the US Army Corp of Engineers that described upcoming fieldwork at the Beach Seeps/Drum Disposal Areas (BSA/DDA) and the UST 1 sites (formerly East-West Runway). Upcoming field activities are; groundwater sampling at all sites, measuring free product and water levels from the UST 1 monitoring wells, conduct soil gas monitoring from the soil gas probe locations and observe the beach seep stain. Upon completion of the annual sampling, broken components on the high-vapor extraction (HVE) system will be repaired and replaced so the system can be restored.

Erica Blake

2/20/2018

Meeting or Teleconference Held

DEC met with USACE staff and contractors for a meeting regarding cleanup status at the Cold Bay-Fort Randall sites. Also discussed at the meeting were upcoming documents for DEC to review.

Erica Blake

4/4/2018

Document, Report, or Work plan Review - other

DEC approved two technical memorandums dated March 2018. Task 8 – HVE Pulsing Strategy, Field Data Collection and Assessment summarized results from the 2017 activities; pulsing pilot study, installation of two water-level transducers at the Drum Disposal Area (DDA)/Beach Seeps Area (BSA), weekly high-vacuum extraction (HVE) straw tip adjustments, passive skimmers and performance of the bioventing system. Task 9 – Free Product Removal Alternatives Evaluation summarized potential remedial alternatives, emphasizing on removing product as quickly and efficiently as possible and discussed and assessed well redevelopment, new/additional well installations, low-energy passive barriers, and additional computer modeling. DEC requested work plans be sent for review prior to implementation of any of the remedial alternatives discussed in the Task 9 technical memorandum.

Erica Blake

7/18/2018

Spill Transferred from Prevention Preparedness and Response Program

Spill transferred by PPRP staff Cynthia Kirkham. Spill no. 17259919801; spill date = 7/13/17; substance = diesel and water from treatment system; quantity = ~89 gallons; source = failed centrifuge prevented system from shutting off at HVE shack; lat/long: 55.200483, -162.7007, Datum = WGS84, collected 7/6/18.

Mitzi Read

8/6/2018

Document, Report, or Work plan Review - other

DEC approved the 2017 Cold Bay Annual Report dated July 2018. The document describes 2017 operations and maintenance (O&M) at the Cold Bay high-vacuum extraction (HVE) and bioventing treatment systems and annual groundwater monitoring at the Drum Disposal Area (DDA)/Beach Seeps Area (BSA) and the Underground Storage Tank (UST) 1 site (formerly referred to as East-West Runway (EWR). Nine of the 27 monitoring wells at the DDA/BSA contained free product. Only two wells at the EWR site contained free product. DDA/BSA results indicate diesel range organics (DRO), residual range organics (RRO), benzene and total aromatic hydrocarbons (TAqH) remain above their respective cleanup levels. UST 1 results indicate DRO, gasoline range organics (GRO), ethylbenzene and lead to remain above their respective cleanup levels.

Erica Blake

2/25/2019

Document, Report, or Work plan Review - other

ADEC approved the "FUDS 2019 Revised Cold Bay Operations and Maintenance Work Plan Addendum, Fort Randall, Cold Bay, Alaska". This revised work plan addendum (WPA) details general operations and maintenance (O&M) of onsite remediation systems, biannual and annual sampling, and general reporting for the Drum Disposal Area (DDA)/Beach Seep Area (BSA) and Underground Storage Tank (UST) 1 (formerly the East-West Runway [EWR] site) project sites at the Fort Randall Formerly Used Defense Site (FUDS) (Property No. F10AK0845-02) in Cold Bay, Alaska (Figure 1-1). This revised 2019 WPA supplements the 2018 WPA (U.S. Army Corps of Engineers [USACE] 2018c).

Darren Mulkey

4/23/2019

Document, Report, or Work plan Review - other

ADEC approved the "2018 Cold Bay Annual Report, Fort Randall, Cold Bay, Alaska". This report summarizes 2018 operations and maintenance (O&M) for the Cold Bay highvacuum extraction (HVE) and bioventing treatment systems, HVE system upgrades, and the annual groundwater monitoring results at the former Fort Randall site in Cold Bay, Alaska. The performance period of January through December 2018 was Year 20 of O&M for the HVE system and Year 11 of O&M for the bioventing treatment system.

Darren Mulkey

8/29/2019

Document, Report, or Work plan Review - other

This revised work plan addendum (WPA) details general operations and maintenance (O&M) of onsite remediation systems, biannual and annual sampling, and general reporting for the Drum Disposal Area (DDA)/Beach Seep Area (BSA) and Underground Storage Tank (UST) 1 (formerly the East-West Runway [EWR] site) project sites at the Fort Randall Formerly Used Defense Site (FUDS) (Property No. F10AK0845-02) in Cold Bay, Alaska (Figure 1-1). This revised 2019 WPA supplements the 2018 WPA (U.S. Army Corps of Engineers [USACE] 2018c).

Darren Mulkey

3/31/2020

Document, Report, or Work plan Review - other

The U.S. Army Corps of Engineers (USACE) completed the first Periodic Review (PR) of the selected remedies for the Drum Disposal Area, Beach Seep Area, and the Underground Storage Tank-1 site (part of the former East-West Runway site) at the Fort Randall Formerly Used Defense Site in Cold Bay, Alaska. The purpose of this review is to ensure the remedies selected in the Decision Document (USACE 2005b) are performing effectively and continue to be protective of human health and the environment.

Darren Mulkey

5/26/2020

Institutional Control Periodic Reporting

2019 Cold Bay Annual Report - Fort Randall. This report summarizes the annual operations and maintenance (O&M) and monitoring activities at the Drum Disposal Area (DDA)/Beach Seep Area (BSA) in Cold Bay, Alaska, for the period of January through December 2019. These sites are located at the Fort Randall Formerly Used Defense Site (FUDS) No. F10AK0845-02.

Darren Mulkey

2/23/2023

Document, Report, or Work plan Review - other

DEC received a Findings and Determination of Eligibility (FDE) for the Cold Bay-Fort Randall (F10AK0845) Formerly Used Defense Site (FUDS) on February 1, 2023. The document was reviewed, and DEC concurs with the findings described in the FDE.

Erica Blake

10/17/2023

Document, Report, or Work plan Review - other

DEC provided comments for the 2023 Cold Bay Operations and Maintenance Work Plan Fort Randall Cold Bay, Alaska to the U.S. Army Corp of Engineers. Proposed field activities include biannual soil gas monitoring and discharge vapor gas sampling, a periodic sampling of treated water, a Beach Seep Area (BSA) survey and assessment of free product accumulation, datalogger downloads, and transmissivity testing at the Drum Disposal Area (DDA) and BSA. These events are to ensure that the long-term monitoring and treatment of the DDA and BSA sites continue to remediate the area.

Brian Watts

10/23/2023

Document, Report, or Work plan Review - other

Approval letter for 2023 Cold Bay Operations and Maintenance Work Plan Fort Randall Cold Bay, Alaska was sent. Proposed field activities include biannual soil gas monitoring and discharge vapor gas sampling, a periodic sampling of treated water, a Beach Seep Area (BSA) survey and assessment of free product accumulation, datalogger data downloads, and transmissivity testing at the Drum Disposal Area (DDA) and BSA. These events are to ensure that the long-term monitoring and treatment of the DDA and BSA sites continue to remediate the area. All comments and necessary changes were acceptable by DEC.

Brian Watts

7/31/2024

Document, Report, or Work plan Review - other

DEC has reviewed the 2023 Cold Bay Annual Report Fort Randall Cold Bay, Alaska Draft Dated June 2024. The document describes 2023 operations and maintenance (O&M) for the high-vacuum extraction (HVE) and bioventing systems as well as groundwater monitoring for the 2023 field season. The HVE system was not used for product extraction in 2023. The bioventing system remained off for the 2023 operational year. Eight samples were collected for groundwater monitoring analysis. From the analyses performed there were exceedances of diesel range organics (DRO), benzene, naphthalene, total aromatic hydrocarbons (TAH), and total aqueous hydrocarbons (TAqH). The report recommends continued monitoring at the site.

Brian Watts

7/31/2024

Document, Report, or Work plan Review - other

DEC has reviewed the 2024 Revised Cold Bay Operations And Maintenance Work Plan Addendum Fort Randall Cold Bay, Alaska Dated June 2024. The work plan addendum describes events proposed for 2024, including: downloading data from dataloggers, treated water sampling to ensure discharge water is below DEC cleanup levels, soil gas monitoring, discharge vapor gas sampling, a sitewide free product survey, beach seep area (BSA) survey, transmissivity testing, and groundwater monitoring.

Brian Watts

8/22/2024

Document, Report, or Work plan Review - other

DEC provided comments for the "Data Gathering Assessment Work Plan, Fort Randall Formerly Used Defense Site Cold Bay, Alaska (dated August 2024)" to the U.S. Army Corp of Engineers. The draft work plan proposes activities to collect additional data to characterize soil and groundwater contamination related to historical fuel releases at the former Fort Randall site in Cold Bay, Alaska. Analytical results collected under this work plan will be used to asses and evaluate the current remedy in place and help determine next steps for cleanup in Cold Bay.

Erica Blake

9/18/2024

Document, Report, or Work plan Review - other

DEC provided responses to comments for the 2024 Revised Cold Bay Operations and Maintenance Work Plan Addendum, Fort Randall Cold Bay, Alaska (dated June 2024)" to the U.S. Army Corp of Engineers. The document summarizes the scope of work for 2024 operations and maintenance, and biannual and annual sampling, and lists the wells and analytes planned for 2024 groundwater sampling. The document also describes an approach for completing a passive aeration pilot study to aerate the subsurface by harnessing wind and energy. A clean final work plan addendum was requested to complete a comment backcheck, prior to DEC providing formal approval.

Erica Blake

9/18/2024

Document, Report, or Work plan Review - other

DEC provided responses to comments for the "2023 Cold Bay Annual Report Fort Randall Cold Bay, Alaska, Draft (dated June 2024)" to the U.S. Army Corp of Engineers. The report recommends continued monitoring during the 2024 performance period by; measuring free product, collecting free product levels from extraction wells on a quarterly basis, and use static groundwater elevation data from HOBO data loggers and deployed transducers to model seasonal groundwater trends, tidal induced fluctuation, hydraulic conductivity, and product migration. Annual groundwater monitoring is planned to continue in 2024.

Erica Blake

10/16/2024

Compliance Advisory Letter

DEC provided a Compliance Advisory Notification concerning site work conducted for the Data Gathering Assessment Work Plan, Fort Randall Formerly Used Defense Site Cold Bay, Alaska dated August 2024. The letter alleges that the U.S. Army Corp of Engineers (USACE) and Jacobs began site characterization activities in Cold Bay, Alaska without an approved work plan as required by Alaska regulations 18 AAC 75.335(b). DEC requested a written response addressing the concerns by November 16, 2024.

Dennis Shepard

10/29/2024

Document, Report, or Work plan Review - other

DEC provided approval for the Data Gathering Assessment Work Plan, Fort Randall Formerly Used Defense Site Cold Bay, Alaska (dated October 2024) to the U.S. Army Corp of Engineers. The document describes proposed activities to collect additional data to characterize soil and groundwater contamination related to a historical diesel fuel release in Cold Bay-Fort Randall, Alaska. Analytical soil, groundwater, marine water, and sediment data will be used to update the conceptual site model. Fieldwork under this work plan, now approved, was completed August-Sept 2024. However, the work plan meets appropriate regulatory requirements.

Erica Blake

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Site Report: Cold Bay Fort Randall-Beach Seep

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