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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.

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
11/21/2024 Document, Report, or Work plan Review - other DEC provided approval for the 2023 Cold Bay Annual Report Fort Randall Cold Bay, Alaska, Final (dated September 2024) to the U.S. Army Corp of Engineers. The report summarized work completed during the 2023 field season. Annual groundwater monitoring at this site is expected to continue. Erica Blake
11/21/2024 Document, Report, or Work plan Review - other DEC provided approval for the 2024 Revised Cold Bay Operations and Maintenance Work Plan Addendum, Fort Randall Cold Bay, Alaska (dated September 2024) to the U.S. Army Corp of Engineers. The document described long-term monitoring work planned for 2024, and provided an approach for completing a passive aeration pilot study. Erica Blake

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