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Site Report: Fort Wainwright - BLDG. 3564 DIESEL ELECTRIC GEN. PLANT FTWW-099

Site Name: Fort Wainwright - BLDG. 3564 DIESEL ELECTRIC GEN. PLANT FTWW-099
Address: South of Neely Road; East of Railroad Track., Fort Wainwright, AK 99703
File Number: 108.26.028
Hazard ID: 25015
Status: Active
Staff: Carly Jensen, 9072697558 carly.jensen@alaska.gov
Latitude: 64.826556
Longitude: -147.657664
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

Former Building 3564 was the standby generator plant for Fort Wainwright, Alaska between 1954 and 1999. Arctic diesel fuel for the generators was stored in two 25,000-gallon underground storage tanks (USTs) north of Former Building 3564. The northernmost tank had developed holes about 1-1.5 inches in diameter from which an unknown quantity of arctic diesel fuel leaked to the groundwater. In 1994, the USTs were removed. A release investigation in 1994 found diesel range organics (DRO), gasoline range organics (GRO) and benzene in the groundwater above ADEC cleanup levels. An air sparge (AS) / soil-vapor extraction (SVE) system operated from 1996 to 1998. DRO and residual range organics (RRO) remain in the groundwater table above ADEC cleanup levels. Due to the proximity to the Post drinking water well, monitoring wells at this site are sampled annually. The corresponding Army HQAES site number is: 02871.1076.

Action Information

Action Date Action Description DEC Staff
6/29/1989 Site Added to Database Former Staff
6/29/1989 Leaking Underground Storage Tank Release Confirmed - Petroleum LUST Site created in CSP for source area ID 77938 Staff need to correct closure date as it is incorr Former Staff
6/30/1995 Leaking Underground Storage Tank Corrective Action Underway (Old R:Base Action Code = SA1 - Phase I Site Assessment (General)). Staff Short: Workplan for Release Investigation received and commented on at Review conference with HLA and ACOE. Bill Petrik
8/30/1995 Update or Other Action Staff Short: Dated site was originally added to the CS DB. Bill Petrik
3/22/1996 Update or Other Action (Old R:Base Action Code = SA2 - Phase II Site Assessment (General)). Staff Short: Received Draft Release Investigation Report Building 3564. Bill Petrik
3/29/1996 Document, Report, or Work plan Review - other (Old R:Base Action Code = SA2R - Phase II SA Review (CS)). Staff Short: Site has plume approximately 150 feet diameter of DRO at 15-17foot depth. Levels of DRO are up to 15,000ppm. CA is recommended = ASVEA. CH2MHill Report. Bill Petrik
3/29/1996 Document, Report, or Work plan Review - other (Old R:Base Action Code = LECH - Leaching Assessment (General)). Staff Short: Draft groundwater modeling report received. CH2MHill. Supply wells 3559A and 3559B have significant impact on DRO migration from contaminated former tanks site and leach well at Building 3564. Bill Petrik
4/5/1996 Update or Other Action Staff Short: Initial ranking. Bill Petrik
4/17/1996 Underground Storage Tank Site Characterization or Assessment (Old R:Base Action Code = SA2 - Phase II Site Assessment (General)). Staff Short: RI report (Phase2) CH2MHill. Weathered diesel (DRO) in GW at concentrations of 350ppb. BTEX at former leach pit at 720ppb. Corrective action (AI/SVE) planned for summer 1996. Draft Work plan due May. Bill Petrik
5/1/1996 Update or Other Action (Old R:Base Action Code = TVES - Treatment, Vapor Extraction System). Staff Markey: Draft, Soil Vapor Extraction, Treatability Study Work Plan, Building 3564, Delivery Order 5, Fort Wainwright, Alaska, Contract Number DACA85-95-D-0015, received 7/8/1996. Bill Petrik
5/1/1996 Update or Other Action (Old R:Base Action Code = TAS - Treatment Alternative Study (CS)). Staff Markey: Draft Intrinsic Remediation Treatability Study Work Plan, Building 3564, Delivery Order 5, Fort Wainwright, Alaska, Contract Number DACA85-95-D-0015, received 7/8/1996. (Old R:Base Action Code = TASP - Treatment, Air Sparging). Staff Markey: Draft Air Sparging Treatability Study Work Plan, Building 3564, Delivery Order 5, Fort Wainwright, Alaska, Contract Number DACA85-95-D-0015, received 7/8/1996. Bill Petrik
7/1/1996 Update or Other Action (Old R:Base Action Code = RELR - Release Investigation Review (LUST)). Staff Short: Release Investigation Report (Phase 2), Building 3564, Delivery Order 5, Fort Wainwright, Alaska, Contract Number DACA85-95-D-0015, Delivery Order 0005, received 7/29/1996. Bill Petrik
7/3/1996 Update or Other Action (Old R:Base Action Code = TAS - Treatment Alternative Study (CS)). Staff Short: Draft Soil Vapor Extraction/Air Sparging Treatability Study Work Plan, Building 3564, Delivery Order Number 5, Contract Number DACA85-95-D-0015. Draft Intrinsic Remediation Treatability Study Work Plan, Building 3564, Delivery Order Number 5, Contract Number DACA85-95-D-0015. Bill Petrik
9/13/1996 Update or Other Action (Old R:Base Action Code = RAU - Remedial Actions Underway (General)). Staff Short: Monitoring wells installed in 1995. Active treatment AS/SVE planned for start-up in fall 1996. CH2MHill. Bill Petrik
3/27/1997 Update or Other Action Site updated by Shannon and Wilson, based on the Army Defense Site Environmental Restoration Tracking System Worksheet dated 11/8/96. The worksheet indicates 39 ppb benzene in groundwater. Bill Petrik
7/1/2001 Update or Other Action Staff Farris: The SVE/AS system was taken offline in mid-2000. Bill Petrik
12/27/2001 Update or Other Action Staff Farris received a work plan for groundwater monitoring at the site. 5 wells were sampled in October 2001 and they are scheduled to be sampled in September 2002 for GRO/BTEX, DRO, and PAHs. This does not agree with the LTM plan received earlier this year that indicated the site would be monitored for natural attenuation. Comments sent to the Army request clarification. Staff Farris received decommissioning report for the SVE/AS system. The connex was moved off site, but the wells and piping were left intact. The groundwater is being monitored for natural attenuation. If MNA fails, the system can be reactivated. Bill Petrik
12/30/2002 Update or Other Action Staff Buck received GW Sampling Program 2001 Report for (2P) sites Building 3425, Building 3481, Building 3483, Former Building 3564, North Post, Building 2060, Former Building 2062/2063. Former Building 3564- the wells within and down gradient from the former AS/SVE treatment area , along with wells in the former natural attenuation area continue to have DRO exceedences. Bill Petrik
1/15/2003 Update or Other Action Staff Buck: AS/SVE decommissioned October 2002. Remedial Action Report Decommissioning Remedial Systems Building 1546 and 3564 (July 2002). Bill Petrik
7/16/2003 Update or Other Action Staff Buck: Fort Wainwright Restoration Advisory Board held it's last meeting on July 16, 2003. Bill Petrik
9/10/2003 Update or Other Action Changed Toxicity from 4 to 3 to reflect the fact that benzene is a contaminant of concern for this site. Bill Petrik
9/8/2004 Underground Storage Tank Site Characterization or Assessment Richmond: Seven groundwater monitoring wells will be sampled and tested for GRO/BTEX, DRO, and RRO. One flush-mount well will be repaired. Bill Petrik
10/5/2004 Update or Other Action Staff Lead was reassigned from Farris to Richmond. Cynthia Pring-Ham
3/15/2005 Leaking Underground Storage Tank Cleanup Initiated - Petroleum Tank removed, soil excavated Four confirmation samples and a duplicate tested for TPH and BTEX. All samples below method 2 cleanup levels. Sharon Richmond
3/15/2005 Update or Other Action This site was closed on 4/6/99 in the OU5 ROD. Site still remains open due to remaining contamination Sharon Richmond
7/12/2005 Update or Other Action Approximately 20 actions copied from the CS DB to the LUST DB for Sharon Richmond. CS DB site, FTWW (2P) Bldg. 3564 Power Plant, Reckey 199531X124201, was a duplicate of this site. Bill Petrik
7/13/2005 Long Term Monitoring Established Staff approved the 2005 groundwater sampling plan Sharon Richmond
11/29/2005 Update or Other Action ADEC attended regularly scheduled meeting with the Army, Corps and consultants Feb 16, 2005. DRO and RRO concentrations in groundwater exceed cleanup levels. Annual groundwater monitoring will continue. Sharon Richmond
3/12/2008 Exposure Tracking Model Ranking Initial ranking complete. Sharon Richmond
4/30/2009 Update or Other Action Comment was provided to the Army on the 2008 Sampling Report, Two-Party Sites, Former Building 3564 and North Post, February 2009 Debra Caillouet
5/26/2009 Document, Report, or Work plan Review - other Minor comment was sent to the Army on the 2009 Groundwater Sampling Program Work Plan, Two-Party Sites, Former Building 3564, North Post, and Building 2077 Sites Debra Caillouet
6/17/2009 Document, Report, or Work plan Review - other The Final 2009 Groundwater Sampling Program Work Plan, Two-Party Sites, Former Building 3564, North Post, and Building 2077 Sites, June 2009 was approved. The work plan includes groundwater sampling and analysis at the three sites, decommisioning of the North Post Treatment System and a UVOST assessment of the Building 2077 site. Debra Caillouet
8/23/2010 Document, Report, or Work plan Review - other Doyon Utilities Feeder 14 Project J101457 Addendum to the Post-Wide Sampling and Analysis Plan, Ft Wainwright, July 2010. Utility upgrades are planned through one known contaminated site and several sites that are in no further action status. Please be aware that a no further action status does not imply there is no contamination left at the site. DEC has no objection to the implementation of this work. Debra Caillouet
12/6/2010 Update or Other Action The 2010 Work Plan, Two-Party Sites, Former Building 3564, Building 2077, Former Building 2250, Building 3483, Building 5110, Wash Rack/FARP and North Post, Fort Wainwright, November 2010 was received. Debra Caillouet
4/12/2011 Document, Report, or Work plan Review - other Doyon Utilities, WTP Generator Project J101276 Debra Caillouet
7/18/2011 Document, Report, or Work plan Review - other DOYON UTILITIES WTP GENERATOR PROJECT J101276 ADDENDUM TO THE POST-WIDE SAMPLING AND ANALYSIS PLAN FT WAINWRIGHT, ALASKA Version 1.1, April 2011 The Alaska Department of Environmental Conservation received the final work plan on June 21, 2011. The work plan incorporated acceptable response to previously supplied comment. DEC has no objection to the implementation of this work. Debra Caillouet
8/24/2011 Document, Report, or Work plan Review - other Doyon Utilities Feeder 14 Project J101457 Addendum to the Post-Wide Sampling and Analysis Plan, Ft Wainwright, Statement of No Contamination Found, June 30, 2011. The Alaska Department of Environmental Conservation (DEC) received a letter from Doyon Utilities on August 24, 2011 stating that no contamination was encountered during the Feeder 14 project. This letter serves the purpose of supplying a final after action report for the Addendum to the Post-Wide Sampling and Analysis plan that was aproved by DEC August 23, 2010. This action closes out the Feeder 14 project. Debra Caillouet
9/20/2011 Document, Report, or Work plan Review - other Draft 2010 Sampling Report, Two-Party Sites, Former Building 3564, North Post, Vehicle Wash Rack/FARP, Former Building 3483, Building 2077, Former Building 5110 and Former Building 2250, Fort Wainwright Alaska September 2011 Debra Caillouet
10/13/2011 Document, Report, or Work plan Review - other Draft 2011 Work Plan, Two-Party Sites, Building 2077, Former Buildings 2062/2063, Former Building 3483, Former Building 3564, Vehicle Wash Rack/FARP, Building 2250, Fort Wainwright, October 2011 Debra Caillouet
11/9/2011 Update or Other Action Doyon Utilities Feeder 15 Project J101458, Ft Wainwright, No Contamination Encountered, September 28, 2011 Debra Caillouet
11/9/2011 Document, Report, or Work plan Review - other Final 2011 Work Plan, Two-Party Sites, Building 2077, Former Buildings 2062/2063, Former Building 3483, Former Building 3564, Vehicle Wash Rack/FARP, Building 2250, Fort Wainwright, October 2011 Debra Caillouet
11/9/2011 Document, Report, or Work plan Review - other Final 2011 Work Plan, Two-Party Sites, Building 2077, Former Buildings 2062/2063, Former Building 3483, Former Building 3564, Vehicle Wash Rack/FARP, Building 2250, Fort Wainwright, October 2011 Debra Caillouet
4/4/2012 Document, Report, or Work plan Review - other Final 2010 Sampling Report, Two-Party Sites, Former Building 3564, North Post, Vehicle Wash Rack/FARP, Former Building 3483, Building 2077, Former Building 5110 and Former Building 2250, Fort Wainwright Alaska October 2011 Debra Caillouet
9/13/2012 Document, Report, or Work plan Review - other Draft 2012 Work Plan Two-Party Sites, Building 2077, Former Buildings 2062/2063, North Post, Former Building 3564, Vehicle Wash Rack/FARP, Fort Wainwright, September 2012 Debra Caillouet
10/29/2012 Document, Report, or Work plan Review - other Final 2012 Work Plan Two-Party Sites, Building 2077, Former Buildings 2062/2063, North Post, Former Building 3564, Vehicle Wash Rack/FARP, Fort Wainwright, September 2012 Debra Caillouet
10/29/2012 Document, Report, or Work plan Review - other Final 2011 Sampling Report, Two-Party Sites, Former Building 3564, Former Building 2062/2063, Building 2077, Vehicle Wash Rack/FARP, Former Building 3483, and Former Building 2250, Fort Wainwright Alaska September 2012 Debra Caillouet
5/21/2014 Document, Report, or Work plan Review - other Draft 2013 Sampling Report Two-Party Sites, Former Building 3564 and Former Buildings 2062/2063 The report recommends continued sampling for DRO at Building 3564 along with iron and sulfate in the fall and removal of RRO from the sampling program. ADEC concurs with this. For Former Buildings 2062 and 2063 the report recommends a Cleanup Complete determination with ICs. ADEC will provide a separate letter for the closure. Debra Caillouet
7/21/2014 Document, Report, or Work plan Review - other Final 2014 Work Plan, Two Party Sites, Fort Wainwright and Seward, June 2014 Debra Caillouet
7/27/2015 Update or Other Action Draft 2014 Sampling Report, Two-Party Site, Former Building 3564, Fort Wainwright, Groundwater Sampling Program, June 2015 The report presents the results of the groundwater monitoring in 2014 and is approved. There were no significant changes to the contamination remaining in the groundwater. Debra Caillouet
8/26/2015 Update or Other Action Transfer to Fairbanks Susan Carberry
1/13/2016 Meeting or Teleconference Held A Restoration Project Managers (RPM) meeting was held in Anchorage Alaska. The upcoming 2016 site restoration work and monitoring was discussed. Fort Wainwright institutional control policies and procedures were also discussed. Dennis Shepard
12/13/2016 Meeting or Teleconference Held A two day Federal Facilities Agreement (FFA) and Stakeholders meeting was held on December 13 & 14, 2016. The main focus of the meeting was to develop a site discovery and site intake process that would satisfy requirements of the Fort Wainwright FFA, RCRA Permit, and two party agreements. The Army, EPA and DEC committed to a flowchart of the preliminary source evaluation process. Timelines were established for scoping a land use control implementation plan (LUCIP) and developing a contracting schedule for Fort Wainwright contaminated site investigations and remedial actions. Seven sites were proposed for inclusion into the FFA (three party agreement) by the Army and the RPMs documented the assignment of the regulatory path for these sites using a newly developed and agreed to signature form. Dennis Shepard
1/1/2017 Document, Report, or Work plan Review - other DEC approved the 2015 Annual Institutional Controls Report, Fort Wainwright, Alaska (August 2016). Dennis Shepard
7/13/2017 Document, Report, or Work plan Review - other DEC approved the 2016 Sampling Report Two-Party Site Former Building 3564, Fort Wainwright, Alaska. Five of seven monitoring wells sampled contained DRO above the ADEC cleanup level during the sampling event. Three wells exceeded ADEC cleanup levels for RRO. However, based on a plume stability evaluation using MAROS software, the Army demonstrated that the mass of the DRO plume has not migrated significantly from the source area. Dennis Shepard
11/16/2017 Document, Report, or Work plan Review - other DEC approved the Final 2016 Sampling Report Two-Party Site Former Building 3564, Hazard ID 25015, ADEC File ID 108.26.028, dated July 2017. Diesel range organics (DRO) and residual range organics (RRO) remain above cleanup levels, groundwater monitoring is ongoing at this site. Erica Blake
5/3/2018 Document, Report, or Work plan Review - other DEC approved the 2017 Sampling Report, Two-Party Site, Former Building 3564 (dated April 2018). The document describes 2017 groundwater monitoring activities at the Former Building 3564 site on Fort Wainwright, Alaska. Seven monitoring wells were sampled for diesel range organics (DRO), residual range organics (RRO), iron, manganese and sulfate. DRO and RRO remain above the DEC cleanup levels in five of the seven monitoring wells. Monitored natural attenuation (MNA) parameters indicate biodegradation is occurring at this site. In addition to the 2017 groundwater monitoring at the Former Building 3564 site, an institutional control (IC) inspection was completed. All monitoring wells inspected were found to be in satisfactory condition. Annual groundwater monitoring and IC inspections are recommended to continue in 2018. Erica Blake
2/12/2019 Document, Report, or Work plan Review - other DEC approved the 2018 groundwater monitoring activities and an institutional control (IC) inspection at the Former Building 3564 site on Fort Wainwright, Alaska. The following contaminants of concern (COCs) were detected above DEC cleanup levels; diesel range organics (DRO) at six out of nine wells and residual range organics (RRO) at one well. It is stated that DRO concentrations in most wells increased from 2017 to 2018 due to elevated groundwater levels, although over the long term most wells show “no trend” or “stable” concentrations. The overall trend for the DRO contaminant mass has been “increasing” since 2014. Monitored natural attenuation (MNA) parameters indicate biodegradation is occurring at this site. No compliance issues were noted during the IC inspection, although it was recommended that the damaged well AP-7187 be converted to a flush mount so that it will not be damaged further by vehicles. DEC concurs with this recommendation. The wells are recommended to be sampled once during the fall of 2019. Kevin Fraley
6/19/2019 Document, Report, or Work plan Review - other DEC approved the 2019 Two-Party Work Plan, U.S. Army Garrison Alaska (dated June 2019). The document describes proposed 2019 long-term monitoring and institutional control (IC) inspection activities on Fort Wainwright, Alaska (FWA) Two-Party contaminated sites. Groundwater monitoring is planned for Two-Party (petroleum contaminated) sites including Neely Road, Defense Reutilization Marketing Office (DRMO) Yard, Former Building 2250, Former Building 3564, and Former Building 5110. The Former Building 1168 Leach Well site, currently in the process of being transferred into the Two-Party program, is also included with the Two-Party Work Plan Addendum. Additionally, a plan for an IC inspection of 40 Two-Party sites is laid out in this work plan. Erica Blake
2/24/2020 Document, Report, or Work plan Review - other DEC approved the Final 2019 Two Party Monitoring Report, U.S. Army Garrison Alaska, dated February 2020. Based on review of the 2019 results, and review of prior investigations, DEC has recommended additional work at the Former Building 2250 and Former Building 3564 sites. Recent data collected from the Former Building 2250 site indicates the DRO contaminant plume is migrating and not fully delineated. Kevin Fraley
7/14/2020 Document, Report, or Work plan Review - other DEC approved the Final 2020 Two-Party Sites Work Plan, Fort Wainwright, Alaska (dated July 2020). The document describes site activities, data review and reporting tasks for work at Two-Party sites on Fort Wainwright, Alaska (FWA). Activities to be conducted are groundwater monitoring and institutional control inspections. Erica Blake
2/11/2021 Offsite Soil or Groundwater Disposal Approved ADEC approved the transport of 275 gallons of purge water generated from seven sites (Bldg 3570, Bldg 5010, Former Bldg 3564, Former Bldg 2250, OU5 WQFS, OU5 EQFS and OU3 Fairbanks Fuel Terminal) on Fort Wainwright, Alaska from the Fort Wainwright hazardous waste facility (Building 3489) to U.S. Ecology in Grand View, Idaho for treatment and disposal. Erica Blake
5/6/2021 Document, Report, or Work plan Review - other ADEC has provided review comments for the "Draft 2020 Two-Party Sites Monitoring Report Various Sites Fort Wainwright, Alaska" dated March 2021 to the U.S. Army. The document presents analytical results and long-term monitoring optimization (LTMO) analysis of groundwater sampling performed at four Two-Party source areas on Fort Wainwright, Alaska (FWA) during the 2020 field season. The four sites investigated are the Defense Reutilization Marketing Office (DRMO) Yard (DRMO2/Building 5010), Former Building 3570 Post Exchange (PX) Gas Station (Neely Road), Former Building 2250 and Former Building 3564. Erica Blake
6/4/2021 Document, Report, or Work plan Review - other ADEC provided responses to comments for the "Draft 2020 Two-Party Sites Monitoring Report Various Sites Fort Wainwright, Alaska" (dated March 2021) to the U.S. Army. All responses to comments were accepted, with one response requesting additional information for the DRMO2/Building 5010 site. Erica Blake
6/15/2021 Document, Report, or Work plan Review - other ADEC provided review comments for the "Draft 2021 Two-Party Sites Work Plan, Fort Wainwright, Alaska" (dated May 2021) to the U.S. Army. The document describes proposed site activities, data review, and reporting tasks for work conducted at four Two-Party sites on Fort Wainwright, Alaska (FWA). In addition to groundwater sampling activities, institutional control inspections will be conducted. Erica Blake
6/22/2021 Document, Report, or Work plan Review - other ADEC provided responses to comments for the "Draft 2021 Two-Party Sites Work Plan, Fort Wainwright, Alaska" dated May 2021 to the U.S. Army. All responses to the review comments provided on June 15, 2021 were accepted, and a revised figure was requested for comment backcheck prior to receiving a final document. Erica Blake
6/28/2021 Document, Report, or Work plan Review - other ADEC provided approval for the Final 2021 Work Plan Two-Party Sites U.S. Army Garrison Alaska (dated June 2021) to the U.S. Army. The work plan describes site activities, data review and reporting tasks for work conducted at four, Two-Party sites (Neely Road, Defense Reutilization Marketing Office (DRMO) 2/ Building 5010, Former Building 2250 and Former Building 3564). In addition to long-term monitoring activities, institutional controls will be inspected. Erica Blake
7/6/2021 Document, Report, or Work plan Review - other ADEC provided approval for the "Final 2020 Monitoring Report Two-Party Sites, U.S. Army Garrison Alaska" dated June 2021 to the U.S. Army. The document describes results from long-term monitoring activities conducted at the following four Two-Party sites: Defense Reutilization Marketing Office (DRMO) Yard (DRMO2/Building 5010), Former Building 3570 Post Exchange (PX) Gas Station (Neely Road), Former Building 2250 and Former Building 3564. Erica Blake
5/20/2022 Document, Report, or Work plan Review - other ADEC approved the Final 2021 Monitoring Report, Two-Party Sites, dated May 2022. The report presents analytical results and long-term monitoring optimization (LTMO) analysis of groundwater sampling performed at four Two-Party source areas on Fort Wainwright, Alaska (FWA) during the 2021 field season. The four sites investigated are the Defense Reutilization Marketing Office (DRMO) Yard (DRMO2/Building 5010), Former Building 3570 Post Exchange (PX) Gas Station (Neely Road), Former Building 2250 and Former Building 3564. This report also provides a summary of the institutional control inspections conducted at these sites and monitoring well installation activities at Former Building 2250. Cascade Galasso-Irish
5/31/2022 Document, Report, or Work plan Review - other ADEC approved the Final 2022 Two-Party Work Plan on this date. This work plan was intended for use in conjunction with the postwide QAPP, however the postwide QAPP was dissolved and incorporated into the respective 2-P and CERCLA work plans. Due to the new/updated PFAS RSLs released, the reporting will need to include these new values. Cascade Galasso-Irish
12/30/2022 Document, Report, or Work plan Review - other ADEC reviewed and sent comments on the Draft 2023 Two-Part Work Plan. ADEC requested installation of additional monitoring wells at the Former Building 2250 to delineate the DRO plume in groundwater. Cascade Galasso-Irish
3/10/2023 Document, Report, or Work plan Review - other DEC received and reviewed the Draft Doyon Utilities Sampling and Analysis Plan (SAP) Addendum for P2046 Building 3563 Rehab Well, Pump and Motor. The SAP Addendum details removal and replacement of the existing generator and appurtenances at Building 3563. Soils excavated will be screened and sampled for gasoline and diesel range organics (GRO, DRO), volatile organic compounds (VOCs), and Resource Conservation and Recovery Act (RCRA) metals. Lead will also be analyzed with Toxicity Characteristic Leaching Procedure (TCLP) sampling methods. Soil sample results will be compared to the most stringent of either the human health or migration to groundwater cleanup levels found in 18 Alaska Administrative Code (AAC) 75.341(c) Tables B1 and B2. VOCs will also be compared to the Environmental Protection Agency (EPA) 2019 Resident Soil Regional Screening Levels (RSLs). Tim Sharp
3/10/2023 Document, Report, or Work plan Review - other DEC approved the Revised Doyon Utilities Addendum to the Post-Wide Sampling and Analysis Plan for P2046 Building 3563 Rehab Well, Pump and Motor. Tim Sharp
3/31/2023 Document, Report, or Work plan Review - other Bulk action entry for FTW Two-Party sites: On this date, DEC received and approved the 2023 Two-Party sites work plan. Notable changes from 2022 include added plume delineation efforts at Former Building 2250, and all wastewater to be sampled for PFAS. Cascade Galasso-Irish
9/11/2023 Document, Report, or Work plan Review - other DEC reviewed the Draft 2022 Institutional Controls (IC) Report, which details the 2022 IC inspections conducted at Fort Wainwright, Alaska (FWA). The purpose of the annual IC inspection is to evaluate the implementation and effectiveness of ICs associated with the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) Record of Decision (ROD) source areas and Two-Party source areas on FWA. Tim Sharp
10/30/2023 Document, Report, or Work plan Review - other Bulk action entry for Fort Wainwright Two-Party monitoring sites - on this date, DEC received and approved the final 2022 Two-Party Sites Annual Monitoring Report. Following the recommendations from the 2021 report, sampling and analysis of gasoline range organics (GRO) was discontinued at the Former Building 3564 site in 2023. However, after review of the 2022 results, GRO should continue to be analyzed further and will be included in the 2024 sampling program. Plume stability analysis for Former Building 3654 indicate increasing trends of contaminant mass. The Army will evaluate the 2023 monitoring data as well as the historical investigation and remedial activities at the site to determine if a soil removal action should be considered in the future to reduce the contaminant mass migrating to the groundwater. A minimum of five temporary well points and two additional wells be installed at the Former Building 2250 site to further delineate the extent of the groundwater contamination. Additionally, DEC is anticipating the 2022 IDW technical memorandum with DRMO Yard Building 5010 purge water PFAS results in fall of 2023. Cascade Galasso-Irish
2/15/2024 Document, Report, or Work plan Review - other DEC submitted comments on the Draft 2024 Two-Party Work Plan which details proposed site activities, data review, and reporting tasks for work to be conducted at Two-Party sites on Fort Wainwright, Alaska (FWA). The Two-Party sites planned for investigation are Neely Road, Defense Reutilization Marketing Office (DRMO) 2/Building 5010, Former Building 2250 and Former Building 3564. In addition to groundwater sampling activities, institutional control inspections will be conducted. Notable changes from previous years’ work plans based on regulatory feedback and Army initiative include sampling wastewater for per- and polyfluoroalkyl substances (PFAS) to support site-wide PFAS Remedial Investigation (RI) work, and the addition of sampling two permanent monitoring wells at the Former Building 2250 site to delineate the petroleum contaminant plume present. Tim Sharp
3/15/2024 Document, Report, or Work plan Review - other DEC Approved the Final 2024 Two-Party Sites Work Plan on this date. Tim Sharp
4/8/2024 Institutional Control Periodic Reporting DEC Approved the 2022 IC Report for Fort Wainwright CERCLA and Two-Party Sites on this day. Tim Sharp
5/21/2024 Document, Report, or Work plan Review - other DEC supplied comments to the Draft 2023 Monitoring Report for Two-Party Sites. The report presents analytical results and long-term monitoring optimization (LTMO) analysis of groundwater sampling performed at four Two-Party source areas on Fort Wainwright, Alaska (FWA) during the 2023 field season. The four sites investigated are the Defense Reutilization Marketing Office (DRMO) Yard (DRMO2/Building 5010), Former Building 3570 Post Exchange (PX) Gas Station (Neely Road), Former Building 2250 and Former Building 3564. Data collected from this sampling effort were compared to historical data to evaluate trends in contaminant attenuation over time. Tim Sharp
6/24/2024 Document, Report, or Work plan Review - other DEC approved the Final version of the 2023 Two Party Sites Monitoring Report. Tim Sharp

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