Site Report: Kotzebue Former IHS/BIA Hospital - School Pipeline Release

Site Name:	Kotzebue Former IHS/BIA Hospital - School Pipeline Release
Address:	Between Third Avenue and Kotzebue Sound; , Kotzebue, AK 99752
File Number:	410.38.025
Hazard ID:	25558
Status:	Active
Staff:	Kelly Walker, 9074512166 kelly.walker@alaska.gov
Latitude:	66.901100
Longitude:	-162.588600
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

Historical spill of #1 diesel occurred over time from 1950 to 1980. Estimated 100,000 to 200,000 gallons spilled impacting an area up to 10 or more acres. ADEC was alerted when fuel was discovered seeping into the elementary school basement in 1980. The source or sources were undetermined but thought to be from 1) a ruptured tank at the bulk tank farm in the 1950's 2) the former distribution line from the bulk tank farm to the Kotzebue school and the former Public Health Service Hospital and 3) aboveground storage tanks (ASTs) and underground storage tanks (USTs) and various piping systems located at the school and hospital. An estimated 40,000 gallons of fuel was recovered by contractors and private individuals between 1980 and 1984. LNAPL noted on the GW between 2 and 6 inches in 1986. It was estimated 20,000 to 40,000 gallons of recoverable fuel was estimated to remain underneath Kotzebue at that time. In 1988 a visible seep of oil along the beach and sheen was noted on the Kotzebue Sound. In 1989, ADEC installed and operated an oil recovery system, which consisted of a 435-foot barrier along of the beach to prevent oil migration into Kotzebue Sound, additional monitoring wells, and an oil recovery trench in Second Avenue, North of the former hospital. As much as 2-feet of floating fuel was observed in some monitoring wells. Groundwater at this site is suprapermafrost and under the influence of tides. Precipitation and snow melt create hydrogeologic conditions favorable for fuel transport via groundwater. Natural soils underneath Kotzebue are heavily disturbed, making prediction of flow pathways and seepage areas difficult. Various thaw bulbs and transport corridors were identified in the 1986 hydrogeology study. A water intake line ran from the hospital desalination plant into Kotzebue Sound in the area where sheen has been observed on numerous occasions. Historic records are located in the Prevention, Preparedness, and Response Program (PPRP) file 410.02.001. Former staff J. Janssen. Spill no. 87320134401. This site also includes spill no. 17389933701; spill date = 12/3/17; substance = diesel; quantity = 200 gallons; source = aboveground heating oil tank at the teacher housing unit; GIS coordinates = 66.900382, -162.585638, WGS84, 6/19/18. The Northwest Arctic Borough School District (NWABSD) teacher housing is located on the Tract 4A in the southwest corner. It is adjacent to the property boundary with Lot 5 and 3rd avenue. The release occurred on 12/1/2018 from an AST attached to the teacher housing unit for heat. 30 cubic yards (cy) of diesel contaminated soil were excavated as part of the spill response effort and stockpiled across 3rd avenue to the east of the teacher housing buildings. PPR is retaining management of the backfill of the excavation and the disposal of the 30 cy of soil. Snow melt water was addressed under PPR during winter 2018. The teacher housing is located on the already active contaminated site, Kotzebue Former HIS/BIA Hospital-School Pipeline Release. Contamination on this site is from numerous ASTs, USTs, and buried pipes. The overall site is approximately 24 acres. The 12/1/2017 release at the teacher housing overlaps with an area of existing contamination and the two contamination sources are comingled. This site is also associated with Hazard ID 394, City of Kotzebue (file 410.38.008). The City of Kotzebue record documents the site history and will be used for tracking pore water and groundwater conditions, and possibly contaminant migration near the new sea wall currently under construction. Hazard ID 25558, IHS Kotzebue Former Hospital - School Pipeline Release will track further developments with the pipeline release.

Action Information

Action Date	Action	Description	DEC Staff
9/29/2009	Update or Other Action	Chevron responded to ADEC's information request with a formal report from Arcadis.	Erin Gleason
12/24/2009	Potentially Responsible Party/State Interest Letter	A PRP letter was sent to the Indian Health Service. During the initial response to the release, the area of heaviest contamination was near the Former Hospital bulk above ground storage tanks. During a follow up meeting, IHS responded to the PRP letter by stating that other entities shared the responsibility for the release.	Kim DeRuyter
5/17/2010	Update or Other Action	Freedom of Information Act request letters sent to BIA and IHS.	Kim DeRuyter
6/23/2010	Meeting or Teleconference Held	Staff traveled to Kotzebue to discuss the historic fuel spill with Maniilaq, KIC, and the City.	Kim DeRuyter
8/10/2010	Potentially Responsible Party/State Interest Letter	A PRP letter was sent to BIA, as they owned all of the property during the 50's when the local residents state that they first began pulling oil out of shallow wells adjacent to the school/Former Hospital land holdings, and they also owned the school property through the mid 70's.	Kim DeRuyter
9/2/2010	Meeting or Teleconference Held	Staff conducted a teleconference with members of the Northwest Arctic School District, to discuss the historic school spill and the schools involvement.	Kim DeRuyter
9/7/2010	Update or Other Action	A meeting announcement was sent to all of the PRPs. The meeting is scheduled for Oct 13, 2010 in Kotzebue.	Kim DeRuyter
9/13/2010	Site Added to Database	A new site has been added to the database. This site has been pulled out of the City of Kotzebue.	Mitzi Read
9/13/2010	Update or Other Action	This site is associated with Hazard ID 394, City of Kotzebue (file 410.38.008). The City of Kotzebue database entry documents the site history and will be used for tracking pore water and groundwater conditions, and possibly contaminant migration due to the new sea wall currently under construction. Hazard ID 25558, IHS Kotzebue Former Hospital - School Pipeline Release will track further site characterization and potential remedial efforts associated with the historic releases on the School and Former Hospital properties.	Mitzi Read
9/13/2010	Exposure Tracking Model Ranking	Initial ranking with ETM completed for source area id: 78949 name: IHS Kotzebue Former Hospital - School Pipeline Release	Kim DeRuyter
10/13/2010	Meeting or Teleconference Held	A potentially responsible party meeting was held in Kotzebue. The purpose of the meeting was to bring the PRPs and stakeholders up to date on the site history, and forge an agreement to move forward toward site characterization. Present at the meeting were representatives for Chevron, Bureau of Indian Affairs, Indian Health Service, Maniilaq Association, the City of Kotzebue, Kikiktagruk Inupiat Corporation, and the Northwest Arctic Borough School District. Several members of the group decided to develop a technical team to develop a cost estimate for the site characterization. The technical team will disseminate information to their managers and legal staff, and all parties will meet to discuss the results in Anchorage sometime in early December.	Kim DeRuyter
10/15/2010	Potentially Responsible Party/State Interest Letter	Potentially responsible party letters were sent to the City of Kotzebue and Kikiktagruk Inupiat Corporation 10/15/10, Chevron 2/22/08, BIA 8/22/10, IHS 2/23/10 and the Northwest Arctic School District on 10/26/10, and the Department of Education and Early Developement on 8/23/11. Freedom of information request letters were sent to BIA and IHS on May 17, 2010.	Kim DeRuyter
10/22/2010	Meeting or Teleconference Held	CS staff met with the City Manager of Kotzebue to review and discuss the last weeks meeting in Kotzebue.	Kim DeRuyter
2/2/2011	Meeting or Teleconference Held	Contaminated Sites staff held a teleconference with the Bureau of Indian Affairs (BIA), the Indian Health Service (IHS), the Kikiktagruk Inupiat Corporation (KIC), the North West Arctic Borough School District, and the City of Kotzebue in response to a historic oil spill at the BIA school and former BIA hospital dating back to the 1950’s and 60’s. BIA responded to a freedom of information act request in October stating that were unable to locate any documents pertaining to these properties, and at a meeting last month BIA stated they would not consider their agency liable for the release until they received documents proving they owned and operated the facilities during the time of the release. DEC staff conducted interviews with Kotzebue elders, former BIA employees, and a contact at Crowley who had personally transferred fuel to the school hospital pipeline. During the interviews, BIA maintenance workers said they thought BIA had built the pipeline, and they personally tried to repair breaks in the line. Former school employees and several residents who lived near the pipeline also confirmed knowledge of the releases from the threaded 4 inch pipeline. CS staff asked what it would take to get BIA to seek funding for remedial action at the site. BIA requested additional time to retrieve archived documents, and offered to provided a copy of the documents received thus far, plus any additional documentation received from their archives by February 16th. IHS provided some historic articles on the original and former hospital from the Nome Nugget, and responded to the FOIA request with documents for the Department of Law. The City searched the former IHS property, now the attic of the City Shop and found City Council meeting minutes describing land transfers between the City and IHS. The School found a geotechnical report on the school property that they offered to provide after the meeting.	Kim DeRuyter
2/24/2011	Update or Other Action	During the February 2 meeting, BIA offered to try again to find some documentation on the School and former hospital facilities and provide it to the Department by February 16 th. No documentation was provided by the February 16, 2011 deadline, and BIA has not responded to phone calls or e-mails from the department.	Kim DeRuyter
8/22/2011	Potentially Responsible Party/State Interest Letter	Internal meeting and briefing to the program manager. Sent PRP letter to the Department of Education and Early Development.	Kim DeRuyter
11/1/2012	Meeting or Teleconference Held	A potentially responsible party meeting was held in Anchorage. The purpose of the meeting was to re-engage the PRPs and stakeholders in moving on toward initiating field work needed to complete site characterization and remediation. Present at the meeting were representatives from ADEC, Bureau of Indian Affairs, Indian Health Service, the City of Kotzebue, Kikiktagruk Inupiat Corporation, and the Northwest Arctic Borough School and District. It was decided that regular monthly meetings (at a minimum) would continue from this point forward in order to keep the project on track and facilitate completing necessary cost allocation and technical planning. The next meeting was scheduled for mid-December 2012 in Anchorage.	Kevin Gardner
12/13/2012	Meeting or Teleconference Held	A potentially responsible party meeting was held in Anchorage. The purpose of the meeting was to continue technical planning and cost allocation discussions with PRPs and stakeholders. Present at the meeting were representatives from ADEC, Bureau of Indian Affairs, Indian Health Service, the City of Kotzebue, Kikiktagruk Inupiat Corporation, and the Alaska Department of Education and Early Development (DEED.) IHS presented a detailed timeline recounting site-related actions involving construction, property transfers, fuel deliveries, maintenance operations and spill-related response and investigative actions by ADEC and consultants. BIA and IHS agreed to determine what steps they need to take to initiate site characterization work. AK DEED agreed to review their records regarding school property management actions for information that may be useful for allocation discussions.	Kevin Gardner
1/17/2013	Meeting or Teleconference Held	A potentially responsible party meeting was held in Anchorage. The purpose of the meeting was to continue technical planning and cost allocation discussions with PRPs and stakeholders. Present at the meeting were representatives from ADEC, BIA, IHS, City of Kotzebue, KIC, AK DEED and Northwest Arctic Borough School District (NWABSD.) Both BIA and IHS have made progress determining specific actions needed to effect site characterization and cleanup at the site. ADEC agreed to contact Chevron requesting further information regarding the delivery of fuel via the former pipeline. IHS also provided additonal maps and drawings that were missing from ADEC's files. Finally, personnel were identified to comprise both the Technical and Cost Allocation Teams.	Kevin Gardner
2/15/2013	Update or Other Action	ADEC sends information request letter to Chevron	Erin Gleason
2/20/2013	Meeting or Teleconference Held	A potentially responsible party meeting was held in Anchorage. The purpose of the meeting was to continue technical planning and cost allocation discussions with PRPs and stakeholders. Present at the meeting were representatives from ADEC, BIA, IHS, City of Kotzebue, KIC and Northwest Arctic Borough School District (NWABSD.) Both BIA and IHS continue to make progress toward obtaining funding for site characterization and cleanup. ADEC indicated that further communications with Chevron as agreed upon in January 2013 did not yield any more information regarding specific fuel delivery billings during the active life of pipeline.	Kevin Gardner
3/13/2013	Meeting or Teleconference Held	A potentially responsible party meeting was held in Anchorage to continue planning discussions with PRPs and stakeholders. Present at the meeting were ADEC and PRP representatives from BIA, IHS, City of Kotzebue, KIC, AK DEED and Northwest Arctic Borough School District (NWABSD.) Both BIA and IHS are close to obtaining funds to support site characterization and cleanup. IHS also plans to meet with Maniilaq Association in Kotzebue to begin discussions about contracting the necessary work. ADEC informed the group that the City of Kotzebue had formally requested that ADEC rescind their PRP status.	Kevin Gardner
3/18/2013	Update or Other Action	Chevron sends letter in response to ADEC's information request citing the 2009 Arcadis report. Chevron does not have any additional information outside of what they provided in 9/29/2009.	Erin Gleason
3/29/2013	Potentially Responsible Party/State Interest Letter	ADEC sent a letter to the City of Kotzebue informing them that the department has rescinded the City's designation as a PRP.	Kevin Gardner
4/16/2013	Meeting or Teleconference Held	A potentially responsible party (PRP) meeting and teleconference was held in Anchorage. The purpose of the meeting was to receive planning status reports for site characterization and cleanup. Present at the meeting were ADEC and PRP representatives from BIA, IHS, KIC, AK DEED, and the Northwest Arctic Borough School District (NWABSD). The City of Kotzebue was also in attendance. Funding was approved for both BIA and IHS and contract planning is underway with Maniilaq Association. ADEC requested that IHS develop a general schedule that identifies key milestones and serves as the basis for more detailed scheduling as the project progresses.	Kevin Gardner
5/22/2013	Meeting or Teleconference Held	A potentially responsible party (PRP) meeting and teleconference was held in Anchorage to determine current status of planning for site characterization and cleanup. Present at the meeting were ADEC and PRP representatives from BIA, IHS, AK DEED, and the Northwest Arctic Borough School District (NWABSD). PRP KIC was not present. The City of Kotzebue was also in attendance. Discussed various construction projects in the Kotzebue vicinity that do not affect the spill site. IHS has scheduled a site visit and meeting with Maniilaq Association for June 6, 2013.	Kevin Gardner
6/18/2013	Meeting or Teleconference Held	A PRP meeting and teleconference was held in Anchorage. The purpose of the meeting was to receive planning updates from IHS and BIA upcoming site characterization and cleanup. Present at the meeting were ADEC and PRP representatives from BIA, IHS, KIC, AK DEED, and the Northwest Arctic Borough School District (NWABSD). The City of Kotzebue was not in attendance. IHS completed a site visit and coordination meeting with Maniilaq Association on June 6 , 2013 and expect to resolve remaining contract issues by the end of the month. BIA will determine the extent to which they will be able to integrate their efforts with IHS.	Kevin Gardner
7/23/2013	Meeting or Teleconference Held	A PRP meeting and teleconference was held in Anchorage to track the status of site characterization planning by IHS and BIA. Present at the meeting were ADEC and PRP representatives from BIA, IHS, KIC, AK DEED, and the Northwest Arctic Borough School District (NWABSD). The City of Kotzebue, a non-PRP team member, was also present. IHS and BIA have coordinated extensively with Maniilaq Association and expect to soon have a final contract in place for use in obtaining the services of an environmental consultant for site work.	Kevin Gardner
8/29/2013	Meeting or Teleconference Held	A PRP meeting and teleconference was held in Anchorage to track the status of site characterization planning by IHS and BIA. Present at the meeting were ADEC and PRP representatives from BIA, IHS, KIC, and AK DEED. The Northwest Arctic Borough School District (NWABSD) and non-PRP City of Kotzebue were not present. IHS has executed a contract with Maniilaq Association who will now work to obtain the services of an environmental consultant to complete the IHS portion of site characterization. BIA has not yet finalized their contracting efforts for their portion of site characterization.	Kevin Gardner
9/26/2013	Meeting or Teleconference Held	A PRP meeting and teleconference was held in Anchorage to track the status of site characterization planning by IHS and BIA. Present at the meeting were ADEC and PRP representatives from BIA, IHS, KIC, AK DEED, and the Northwest Arctic Borough School District (NWABSD). Non-PRP Maniilaq Association was also present. The City of Kotzebue, a non-PRP team member, was not present. IHS informed the group that WHPacific, Inc. has been selected by Maniilaq Association to complete the IHS portion of site characterization. BIA has not yet finalized their contracting efforts for their portion of site characterization.	Kevin Gardner
11/6/2013	Site Visit	PRP meeting and site visit was held in Kotzebue, AK. In attendance were ADEC and PRP representatives from BIA, IHS, AK DEED, NWABSD, and KIC; non-PRP attendees included City of Kotzebue, Maniilaq Association and WHPacific, Inc. DEC, IHS, Maniilaq, and WHPacific discussed final contractual issues that have been resolved and a preliminary schedule to scope a site characterization workplan that will result in field work during spring/summer of 2014 in Kotzebue. A site visit was conducted by DEC, IHS, BIA, and WHPacific representatives following the meeting	Kevin Gardner
12/17/2013	Meeting or Teleconference Held	Contracting actions by IHS with Maniilaq Association for the site characterization in Kotzebue has been completed, and they have executed a contracted with the environmental consultant WHPacific, Inc. BIA is still working to finalize their contract. DEC identified need to continue cost allocation/recovery discussions, and U.S. Dept. of Justice attorney pointed out that U.S. government had not taken the position that the State of Alaska was entitled to cost recovery and that it was premature to make conclusions regarding site cost allocation until the site characterization was completed.	Kevin Gardner
1/28/2014	Meeting or Teleconference Held	Monthly PRP call-in took place. IHS reported on progress by their consultant obtaining/reviewing site files provided by ADEC. BIA has not yet finalized their contract w/Maniilaq Association for site characterization. DEC again discussed need for PRPs to begin work on cost allocation in support of future cost recovery efforts by DEC; U.S. Dept. of Justice and IHS reiterated their understanding and preference that further cost allocation work should await results from 2014 field work.	Kevin Gardner
2/25/2014	Meeting or Teleconference Held	BIA contracting effort for site characterization work during 2014 field season not completed. Planning underway by IHS and their consultant for work plan development and preliminary scoping meeting with DEC.	Kevin Gardner
3/25/2014	Meeting or Teleconference Held	Efforts to fund summer 2014 field work continue by BIA. WHPacific, on behalf of Maniilaq Association and IHS, will visit Kotzebue March 26-28, 2014 to collect information in support of an Environmental Site Assessment related to a property transaction affecting several lots in the project area of interest.	Kevin Gardner
4/30/2014	Meeting or Teleconference Held	Discussion focused on need for joint BIA/IHS-funded site characterization. BIA indicated they were closer to finalizing and obtaining a contract for the work.	Kevin Gardner
5/29/2014	Meeting or Teleconference Held	BIA/Maniilaq Association are close to making a contract award to WHPacific, same consultant awarded work by IHS for this site. Coordination with the City of Kotzebue was initiated by WHPacific regarding site operation and access issues during the summer field work.	Kevin Gardner
6/25/2014	Meeting or Teleconference Held	BIA completed execution of a contract through Maniilaq Association to WHPacific to conduct site characterization work. WHPacific provided overview of initial planning and coordination for the field work to be initiated in mid-August, 2104. Attorney for SOA updated attendees regarding status of cost allocation work. It is expected that invoices for prior site work by SOA will be finalized and that more specific information would be available to PRPs during the July 2014 teleconference.	Kevin Gardner
7/30/2014	Document, Report, or Work plan Review - other	Reviewed site characterization work plan submitted by Maniilaq Association/WHPacific on July 30, 2014.	Kevin Gardner
7/31/2014	Meeting or Teleconference Held	WHPacific has incorporated comments from IHS on site work plan and submitted draft work plan to DEC on July 30, 2014. Site work will commence during the week of August 11, 2014 in Kotzebue. Attorney for SOA discussed preliminary details regarding cost allocation letters to be mailed within the next two weeks to PRPs.	Kevin Gardner
8/4/2014	Site Characterization Workplan Approved	Provided conditional approval of site characterization work plan in order to expedite mid-August mobilization and field work by WHPacific for site investigation on behalf of IHS and BIA (through Maniilaq Association.) Letter to Maniilaq Association indicated work plan approval subject to review and incorporation of DEC recommended changes to work plan.	Kevin Gardner
3/20/2015	Document, Report, or Work plan Review - other	Reviewed draft site characterization report from WHPacific, Inc. for soil and groundwater sampling work that occurred on the project site during August 2014.	Kevin Gardner
2/16/2016	Update or Other Action	Updated ETM based on final site characterization report received 2/8/2016	Kevin Gardner
7/22/2016	Site Characterization Report Approved	Approved site characterization report from work completed between August 2014 and September 2015. Work included soil and groundwater samples collected from Lots 3, 4, 5, and Tract 4A as well as a shallow soil gas survey completed in the area of the Kotzebue elementary school playground. Lot 3 had no soil contamination above arctic zone cleanup levels; Lot 4 had once soil boring with DRO at 13100 mg/kg (cleanup level 12500); Lot 5 contaminants exceeding DEC cleanup levels included DRO (highest at 30500 mg/kg); 1-Methylnaphthalene (58300 mg/kg); 2-Methylnaphthalene (78200); P & M-Xylene (171000 mg/kg); o-Xylene (96500 mg/kg) and Naphthalene (33900 mg/kg); Tract 4A (school area) showed DRO in one sample at 17800 mg/kg.	Kevin Gardner
12/2/2016	Meeting or Teleconference Held	Contacted Dennis Jennings, the City Planner for Kotzebue, to follow-up on information received from Tom DeRutyer of SPAR-PPR regarding recent student evacuations at the Kotzebue Schools due to a fuel odor inside the building. Jennings stated that he knew of three evacuations - o/a 10/31/2016; 12/01/2016 and 12/02/2016. Mr. Jennings stated that the apparent source of the odors is, in their opinion, related to the historic pipeline fuel release for which a site characterization report was recently approved. While the recent site investigation did not include information regarding indoor petroleum odors at the school as a problem, Mr. Jennings provided anecdotal information that such odors have become increasingly prevalent and seem to occur immediately following a very sudden transition from extreme cold outdoor air temperatures to relatively warmer temperatures (as occurred during the week of 11/27 - 12/02 2016.	Kevin Gardner
7/24/2017	Document, Report, or Work plan Review - other	Received underground storage tank and water monitoring work plan from Tanana Commercial Company LLC on 7/18/2017. ADEC requests revisions. Revised work plan due 8/15/2017.	Erin Gleason
8/2/2017	Meeting or Teleconference Held	Monthly science meeting held to discuss future characterization and cleanup.	Erin Gleason
8/4/2017	Site Characterization Workplan Approved	Approved Tanana Commercial Company LLC work plan for UST removal.	Erin Gleason
8/16/2017	Update or Other Action	Sent work plan request letter to NWABSD for vapor intrusion problem at Kotzebue elementary school.	Erin Gleason
9/25/2017	Meeting or Teleconference Held	Monthly science meeting held to discuss future characterization and cleanup.	Erin Gleason
10/2/2017	Update or Other Action	Sent overdue work plan notice to Northwest Arctic Borough School District. To date, ADEC has not received a work plan for vapor intrusion at the school as requested.	Erin Gleason
10/6/2017	Update or Other Action	Work plan request letter sent to BIA. Work plan due 12/1/2017.	Erin Gleason
11/15/2017	Meeting or Teleconference Held	Monthly science meeting held to discuss future characterization and cleanup.	Erin Gleason
12/3/2017	Update or Other Action	Release of 200 gallons of diesel on Tract 4A adjacent to the teacher housing.	Erin Gleason
12/11/2017	Exposure Tracking Model Ranking	A new updated ranking with ETM has been completed for source area 78949 Kotzebue Former IHS/BIA Hospital - School Pipeline Release.	Erin Gleason
12/21/2017	Meeting or Teleconference Held	Vapor intrusion scoping meeting held with ADEC and Shannon and Wilson for the Kotzebue elementary school investigation.	Erin Gleason
12/27/2017	Update or Other Action	ADEC sent letter today to NWABSD stating that the work plan must be submitted to ADEC by 1/15/2018 or the State will assume lead role in the investigation.	Erin Gleason
1/9/2018	Update or Other Action	Draft vapor intrusion work plan received from NWABSD on1/9/2018. ADEC reviewed documents and requires revisions. Letter sent to NWABSD from ADEC requesting revisions by 1/19/2018.	Erin Gleason
1/19/2018	Update or Other Action	Revised draft of VI work plan received from S&W.	Erin Gleason
1/23/2018	Update or Other Action	Final draft vapor intrusion work plan received from NWABSD on 1/19/2018. ADEC reviewed documents and still requires revisions. Letter sent to NWABSD from ADEC requesting revisions by 1/26/18.	Erin Gleason
1/25/2018	Site Characterization Workplan Approved	Revised draft received 1/25/2018. Vapor intrusion work plan for NWABSD Kotzebue elementary school is now approved.	Erin Gleason
3/20/2018	Update or Other Action	ADEC received raw vapor intrusion data. No concentrations above acute human health risk.	Erin Gleason
3/20/2018	Update or Other Action	ADEC, ADOL, and UST program have review the IHS work plan for 2018 intermin action: tank removal and groundwater monitoring. Revisions have been requested and are due by 4/5/2018.	Erin Gleason
4/5/2018	Workplan Requested	ADEC has granted a 45 day extension for the IHS work plan revisions. The revised work plan is now due 5/21/2018.	Erin Gleason
4/12/2018	Update or Other Action	Received vapor intrusion assessment summary report from Shannon and Wilson, Inc..	Erin Gleason
5/9/2018	Update or Other Action	Sent letter to NWABSD requesting revisions to vapor intrusion report.	Erin Gleason
6/7/2018	Update or Other Action	Report deadline extended to 6/15/2018 per request of Shannon and Wilson	Erin Gleason
6/14/2018	Spill Transferred from Prevention Preparedness and Response Program	Spill transferred by PPRP staff John Ebel. Spill no. 17389933701; spill date = 12/3/17; substance = diesel; quantity = 200 gallons; source = aboveground heating oil tank at the teacher housing unit; GIS coordinates = 66.900382, -162.585638, WGS84, 6/19/18; description: The Northwest Arctic Borough School District (NWABSD) teacher housing is located on the Tract 4A in the southwest corner. It is adjacent to the property boundary with Lot 5 and 3rd avenue. The release occurred on 12/1/2018 from an AST attached to the teacher housing unit for heat. 30 cubic yards (cy) of diesel contaminated soil were excavated as part of the spill response effort and stockpiled across 3rd avenue to the east of the teacher housing buildings. PPR is retaining management of the backfill of the excavation and the disposal of the 30 cy of soil. Snow melt water was addressed under PPR during winter 2018.	Mitzi Read
7/3/2018	Site Characterization Report Approved	Received revised Vapor Intrusion Report from S&W on6/8/2018. ADEC has reviewed the report and it is now approved. ADEC is rejecting the sample results for IA-01 due to issues with the sample flow controller.	Erin Gleason
7/12/2018	Update or Other Action	Received revised work plan from Indian Health Service.	Erin Gleason
7/20/2018	Update or Other Action	letter from Alaska Department of Law sent on this day requesting that all PRPs attend a meeting to discuss the site plan and cost recovery on 8/14/2018	Erin Gleason
8/6/2018	Update or Other Action	Received revised work plan from Indian Health Service.	Erin Gleason
8/31/2018	Document, Report, or Work plan Review - other	ADEC has reviewed the revised Indian Health Service, interim action work plan dated 8/6/2018. The work plan details the removal of the regulated gasoline UST and dispenser adjacent to the Fergeson building, groundwater monitoring by Indian Health Service and Bureau of Indian Affairs, and treatment of contaminated soil via landfarming on the Kikiktagruk Inupiat Inc. property. ADEC has reviewed the work plan and requests revisions. Revised work plan due October 15, 2018. ADEC requests a meeting with IHS and their QEP to discuss the requested revisions.	Erin Gleason
9/7/2018	Meeting or Teleconference Held	Follow technical meeting held today. Each entity provided status update on their happenings since the last meeting. IHS provided update on their work plan and future actions were discussed.	Erin Gleason
9/7/2018	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. IHS provided update on their work plan and future actions were discussed.	Erin Gleason
10/12/2018	Update or Other Action	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting.	Erin Gleason
10/16/2018	Update or Other Action	Sent letter to IHS, KIC, and NWABSD requesting an inventory of current ASTs, USTs, and underground pipelines. Inventory due November 16, 2018. Based on the inventory they provide in November, the group will be able to conduct a complete inventory in summer 2019 for any tanks or pipes that are in an unknown status.	Erin Gleason
10/23/2018	Update or Other Action	Received revised interim action work plan from IHS and comment tracking matrix on 10/15/2018. ADEC has reviewed both documents and the 2018 interim action work plan is now approved. The work plan details the removal of a regulated UST at the Fergeson building, removal of contaminated soil from around the UST, soil samples in accordance the ADEC UST guidance, and groundwater samples. Groundwater samples will be collected from the same wells that were installed and sampled in 2014. The wells are located on Lot 3, Lot 4, Lot5, and Tract 4A. The IHS and the BIA are sharing costs for this work plan.	Erin Gleason
11/13/2018	Update or Other Action	Received tank inventory from NWABSD.	Erin Gleason
11/15/2018	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting.	Erin Gleason
11/19/2018	Potentially Responsible Party/State Interest Letter	Letter sent to the Northwest Arctic Borough	Erin Gleason
11/21/2018	Update or Other Action	Received partial tank inventory from IHS. AST inventory is still forthcoming.	Erin Gleason
11/29/2018	Update or Other Action	Received tank inventory from Maniilaq and IHS for Lots 3 and Lots 4.	Erin Gleason
12/7/2018	Meeting or Teleconference Held	December 3-6 ADEC conducted an informal visit to Kotzebue to meet community members, tour the site, and meet with stakeholders and responsible parties.	Erin Gleason
12/13/2018	Update or Other Action	ADEC assembled and emailed a draft site wide tank inventory to KIC, NWABSD, and Maniilaq/IHS today based on the information provided by each entity. ADEC has requested review and concurrence from each entity. Once the inventory is final, plans for finding any unknown tanks during summer 2019 can begin.	Erin Gleason
12/20/2018	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. NWAB, KIC, ADOL, ADEC, ADEED were present. IHS provided a written update via email for the group.	Erin Gleason
1/9/2019	Update or Other Action	The City of Kotzebue water plant has reviewed all of the water hook ups on Front Street. All houses are either on City water or unoccupied. Additionally, the City informs that the water along Front street is tidally influence and brackish.	Erin Gleason
1/10/2019	Meeting or Teleconference Held	Meeting with KIC to finalize the tank inventory on Lot 5 for KIC.	Erin Gleason
1/16/2019	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. IHS, KIC, ADEC, ADEED were present. ADEC review the groundwater trends and plan for the site, and the vapor intrusion summary.	Erin Gleason
1/17/2019	Update or Other Action	Received response letter from NWAB regarding their PRP status sent on 11/19/2018. They acknowledge the ADEC letter and confirm that they will participate in the technical working group.	Erin Gleason
2/25/2019	Workplan Requested	Sent work plan request letter to NWAB, NWABSD, KIC, IHS, BIA, and DEED. ADEC requests two work plans, one for tank inventory by 5/1/2019 and another for vapor intrusion by 6/1/2019.	Erin Gleason
2/28/2019	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. IHS, ADOL, ADEC, ADEED, NWAB were present. ADEC reviewed their plans to visit Kotzebue in the spring for a formal public meeting. ADEC reviewed the 2/25/2019 work plan request letter. DEED and IHS indicated that they might be able to secure some funding for the work.	Erin Gleason
3/15/2019	Exposure Tracking Model Ranking	A new updated ranking with ETM has been completed for source area 78949 Kotzebue Former IHS/BIA Hospital - School Pipeline Release.	Erin Gleason
3/27/2019	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. IHS, ADOL, ADEC, ADEED, NWAB were present. ADEC reviewed their plans to visit Kotzebue in the spring for a formal public meeting.	Erin Gleason
5/6/2019	Meeting or Teleconference Held	Public Meeting Held in Kotzebue	Erin Gleason
5/7/2019	Meeting or Teleconference Held	Public discussion group held in Kotzebue	Erin Gleason
5/21/2019	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. IHS, City of Kotzebue, ADEC, were present.	Erin Gleason
6/27/2019	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. IHS, DEED, ADEC, Maniilaq, BIA, and Tanana Commercial Company (qualified environmental professional for Maniilaq).	Erin Gleason
7/11/2019	Meeting or Teleconference Held	Held meeting to discuss landfarm operation and future closure of landfarm with KIC, ADEC, Maniilaq, and Tanana Commercial Company. ADEC sent landfarm memo letter today stating the requirements and regulations.	Erin Gleason
7/24/2019	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, ADEED, NWAB, and Tanana Commercial Company (TCC) were present. TCC reports that work will begin in August.	Erin Gleason
8/8/2019	Site Visit	ADEC conducted a site inspection August 5-7th during the Underground storage tank (UST) removal and groundwater sampling event.	Erin Gleason
8/28/2019	Update or Other Action	Updated transport, treatment form received from Tanana commercial company to treat the 16 cubic yards of soil in the landfarm operated by KIC. ADEC approves updated request.	Erin Gleason
8/28/2019	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, ADEED, IHS, Maniilaq,BIA , and Tanana Commercial Company (TCC) were present.	Erin Gleason
9/4/2019	Potentially Responsible Party/State Interest Letter	Sent PRP letter to Maniilaq Association on this day.	Erin Gleason
9/23/2019	Update or Other Action	Updated tank and pipe inventory.	Erin Gleason
9/25/2019	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, ADEED were present.	Erin Gleason
10/8/2019	Update or Other Action	ADEC sent a compliance letter to all responsible parties on this date for failure to submit a vapor intrusion work plan. ADEC requests that a work plan be submitted by 10/30/2019 in order for parties to come into compliance.	Erin Gleason
10/30/2019	Update or Other Action	Received formal written response from Maniilaq regarding the 10/8/2019 compliance letter.	Erin Gleason
11/20/2019	Document, Report, or Work plan Review - other	Received UST removal and groundwater monitoring report from Tanana Commercial Company on behalf of the Maniilaq and the Indian Health Service on November 4, 2019. ADEC has reviewed the report and requests the addition of a soil chromatograph to illustrate the type of fuel present in the soil.	Erin Gleason
12/12/2019	Site Characterization Report Approved	ADEC received the revised report and it is now approved. In the 2019 UST removal and groundwater sampling report, contamination was found in soil and groundwater. The soil from the base and sidewalls of the UST excavation had GRO, DRO, 1-methylnaphthalene, 2-methylnaphthalene, 1,2-dibromethan, 1, 3,5-trimethylbenzene, naphthalene above cleanup levels. DRO concentrations in the soil were above ADEC maximum allowable cleanup levels. Arsenic was detected above cleanup levels; however there is no source of arsenic at the site and the concentration is attributed to background concentrations in the soil. Alaska is known to have high concentrations of arsenic in soil. Contaminants of concerns for groundwater were DRO, TAH, TAqH, RRO, 1,2,4-trimethylbenzne,benzene, 1,3,5trimethylbenzene, chloroform, and naphthalene. During the excavation of the tank, field screening became elevated one foot bgs and water was found at 4.5 bgs with a sheen. Based on this information in this report, further work is need. At a minimum sampling of the current wells, delineation of the extent of contamination, close out of the two product recovery wells, product recovery at MW1, and removal of all soil above maximum allowable. PCB may be removed from the list of COPC because they were not detected in any sample.	Erin Gleason
12/18/2019	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, KIC, IHS, and BIA were present.	Erin Gleason
1/23/2020	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, ADEED, IHS, and BIA were present.	Erin Gleason
2/19/2020	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, KIC, and IHS were present.	Erin Gleason
3/30/2020	Update or Other Action	Received work plan from Tanana Commercial Company on behalf of IHS and Manilaq Association. ADEC will review and provide comments.	Erin Gleason
4/22/2020	Site Characterization Workplan Approved	ADEC has reviewed the work plan and it is now approved. The schedule of the summer work may change due to the covid-19 pandemic.	Erin Gleason
5/18/2020	Update or Other Action	Sent printed copies of the 2019 Factsheet to Maniilaq, NWABSD, KIC, NWAB, Native Village of Kotzebue, City of Kotzebue, Elementary School, and NANA.	Erin Gleason
5/20/2020	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, KIC, Maniilaq, ADEED, Tanana Commercial Co, BIA, and IHS were present.	Erin Gleason
6/24/2020	Meeting or Teleconference Held	Teleconference held on this date for the monthly technical meeting. ADEC, ADEED, BIA, IHS, NWAB attended. Maniilaq sent an email update to share with group.	Erin Gleason
7/22/2020	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, ADEED, Tanana Commercial Co, BIA, and IHS were present.	Erin Gleason
8/26/2020	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, Tanana Commercial Co, BIA,NWAB, and IHS were present. Phase two of the summer field work is scheduled for mid september. Exact scope of work will depend on analytical results from lab. It will likely include groundwater sampling and excavation of highly contaminated soils.	Erin Gleason
9/23/2020	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, ADEED, KIC, and IHS were present.	Erin Gleason
9/28/2020	Meeting or Teleconference Held	Crowley Fuels LLC is doing a water pipe installation on Turf street. We anticipate that they will find contaminated soil and groundwater while excavating. Meeting was held on this date to discuss details of the project. Crowley will submit a work plan for review and approval.	Erin Gleason
10/7/2020	Site Characterization Workplan Approved	Received contaminated soil excavation work plan associated with the Crowley water line installation to the north of Tract 4A on 9/30/2020. ADEC has reviewed the work plan and it is now approved. The disposal method will depend on the volume of soil generated and level of contamination.	Erin Gleason
10/22/2020	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, BIA, NWABSD, Maniilaq, and IHS were present.	Erin Gleason
11/25/2020	Update or Other Action	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, BIA, NWABSD,and IHS were present.	Erin Gleason
12/17/2020	Meeting or Teleconference Held	ADEC received vapor intrusion data from Rescon on behalf of NWABSD. Data indicates indoor air is above target screening levels for benzene and naphthalene. ADEC met on this data to conduct preliminary review of data. Data indicates that the exceedances are not from the sub-slab and may be a secondary source in the building such as the boiler.	Erin Gleason
12/30/2020	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, BIA, NWABSD,and NWAB were present.	Erin Gleason
1/11/2021	Document, Report, or Work plan Review - other	Received 2020 Site Characterization and Soil excavation report from Tanana Commercial Company on behalf of Indian Health Service. ADEC will review and approve.	Erin Gleason
2/10/2021	Document, Report, or Work plan Review - other	Letter sent to Maniilaq on this date requesting revisions to 2020 report.	Erin Gleason
2/24/2021	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, KIC, IHS,and were present.	Erin Gleason
3/10/2021	Update or Other Action	Map of groundwater plume made in ADEC GIS mapper.	Erin Gleason
3/24/2021	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, KIC,DEED, TCC, Rescon, and IHS were present.	Erin Gleason
3/31/2021	Meeting or Teleconference Held	Meeting with Crowley and their QEP held on this date to discuss excavation for utility work planned in May. If water is encountered during excavation, a excavation dewatering permit with DOW may be needed. Crowley intends to conduct work when soil is frozen and no water is present. Should water be encountered, they will contact ADEC.	Erin Gleason
4/5/2021	Document, Report, or Work plan Review - other	Received vapor intrusion assessment for Kotzebue elementary school from Rescon on 3/15/21. ADEC has reviewed the report and requests two additions.	Erin Gleason
4/21/2021	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, KIC and BIA were present.	Erin Gleason
4/21/2021	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, KIC and BIA were present.	Erin Gleason
4/27/2021	Meeting or Teleconference Held	Meeting held today with ADEC CSP, PPR, KIC, and TPECI to discuss landfarm operation on Base Road. KIC will continue to till the landfarm summer 2021 and in the fall if the contamination seems to have degraded they will have TPECI sample for closure.	Erin Gleason
4/29/2021	Site Characterization Report Approved	ADEC has received the revised report from Tanana Commercial Co for the 2020 Site Characterization and limited removal. ADEC has reviewed the report and it is now approved. Letter sent on this date. All groundwater monitoring wells were above ADEC cleanup levels. The concentration of DRO in all monitoring wells had increased since 2019, except for MW10. MW1 and MW6 were not sampled due to the presence of free product. This is the first instance that MW6 has had free product. 170 cubic yards of contaminated soil was removed from lot 4 and taken to the KIC Base Road landfarm for treatment.	Erin Gleason
5/4/2021	Site Characterization Report Approved	ADEC received the revised Vapor Intrusion Report for the Kotzebue Elementary School on 4/29. ADEC has reviewed the report and it is now approved. The report indicates that petroleum vapor intrusion does not pose an unacceptable risk. Given the current site conditions and use, ADEC does not require further evaluation of vapor intrusion at present. However, there were detection of volatile organic compounds (VOCs) in the boiler room that may need to be addressed in order to minimize inhalation exposure risk to building occupants.	Erin Gleason
5/19/2021	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, KIC, IHS, TCC and ADEED were present.	Erin Gleason
6/16/2021	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, Maniilaq, ADEED, IHS, and BIA.	Erin Gleason
7/28/2021	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, Maniilaq, ADEED, KIC, IHS, and BIA.	Erin Gleason
8/11/2021	Document, Report, or Work plan Review - other	ADEC received a report from Crowley regarding a waterline installation on the north side of the site along Turf Street on 6/22/21. ADEC has reviewed the report and requests some revisions. Letter sent to Crowley on this 8/11/21.	Erin Gleason
8/17/2021	Site Characterization Workplan Approved	ADEC received a groundwater sampling and soil excavation and remediation work plan from Maniilaq Association in coordination with Indian Health Service on August 13, 2021. ADEC has reviewed the report and it is now approved. Work will be implemented fall 2021.	Erin Gleason
8/25/2021	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, Maniilaq, ADEED, and IHS were present.	Erin Gleason
9/14/2021	Site Characterization Report Approved	ADEC received revised report from Crowley on 9/3/21. ADEC has reviewed the report and it is now approved. Electronic letter sent to Crowley on this date. The report indicates that diesel range organics (DRO), tricholoethene, naphthalene, and chloroform are above ADEC cleanup levels in soil. Soil generated from the waterline replacement was placed into supersacks and shipped out of Kotzebue for disposal.	Erin Gleason
9/23/2021	Update or Other Action	ADEC approved the transport of 46 cubic yard of soil from the Crowley water line project to Seward. The soil is in super sacks and is contaminated with both diesel and chlorinated solvents. The sacks will be temporarily stored in Seward and then barged to Oregon for final disposal.	Erin Gleason
9/29/2021	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, Maniilaq, and IHS were present.	Erin Gleason
10/6/2021	Meeting or Teleconference Held	Kick off meeting with ADEC, BIA, and Kuna Engineering to discuss the upcoming October field work. Kuna will install groundwater monitoring wells in the road right of way. They have received permission from the City. They will sample soil along the historic pipelines throughout the site.	Erin Gleason
10/7/2021	Site Characterization Workplan Approved	ADEC received a draft work plan for groundwater monitoring well installation and soil sampling from the BIA written by Kuna Engineering on 9/16/21. ADEC has reviewed the work plan and requested revisions. Revised work plan received on 10/7/2021. ADEC has reviewed the revised work plan and it is approved. Letter sent to BIA on this date.	Erin Gleason
10/15/2021	Meeting or Teleconference Held	Meeting with ADEC, Crowley, Kuna Engineering, and BIA to discuss the locations of the proposed monitoring well locations along Shore Avenue and Turf Street (MW15 & MW16).	Erin Gleason
10/27/2021	Meeting or Teleconference Held	Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, TCC, BIA, and Kuna were present.	Erin Gleason
11/3/2021	Update or Other Action	Received field change noticed from Kuna Engineer on 11/3/21 detailing the work plan deviations from the October 2021 field work. Not all soil samples were collected due to the presence of utilities. ADEC has reviewed and signed the form. ADEC understands that work plans in rural Alaska do not always go according to plan	Erin Gleason
12/15/2021	Meeting or Teleconference Held	Meeting held with DEC, BIA, and Kuna to discuss 2021 field work and overall site status. Discussion held to determine next steps in the planning process and will touch base with BIA regarding project status in the new year.	Kelly Walker
3/30/2022	Document, Report, or Work plan Review - other	Review completed for 2021 Limited Removal Action, Groundwater Monitoring, and Landfarm Sampling Report and provided comments. Report details the limited contaminated soil removal at Lot 4. Groundwater sampling was completed at Tract 4A and Lots 3 and 5. Contaminated soils generated during the 2019 excavation were sampled at the landfarm where they are currently being treated. Analytical results indicated contaminant concentrations are above ADEC's Method Two Migration to Groundwater Soil Cleanup Levels.	Kelly Walker
3/30/2022	Document, Report, or Work plan Review - other	Review completed for 2022 Work Plan: Landfarm Sampling and Groundwater Monitoring and comments provided. This work plan details the planned groundwater sampling to be conducted at Lot 3, Lot 5 and Tract 4A. The soils generated in 2020 from a removal action at Lot 4, being treated at the landfarm, are to be sampled to determine contaminant concentrations.	Kelly Walker
7/29/2022	Site Characterization Report Approved	2021 Limited Removal Action, Groundwater Monitoring, and Landfarm Sampling Report reviewed and approved for the Kotzebue Former IHS/BIA Hospital - School Pipeline Release site. In 2021, contaminated soils were excavated and removed from Lot 4 and placed into the landfarm for soil remediation. Groundwater monitoring wells were sampled on Lots 3, 5, and Tract 4A. Landfarmed soils from 2019 were sampled to determine if petroleum contamination in soils were below ADEC Method Two Soil Cleanup Levels.	Kelly Walker
10/26/2022	Meeting or Teleconference Held	Meeting held with stakeholders to discuss 2022 field work updates. Landfarm soils were sampled and tilled during the 2022 field season. Analytical samples collected from 2019 soils, 2020 soils were field screened. Groundwater monitoring wells were sampled on Lots 3, 4A and 5.	Kelly Walker
1/30/2023	Site Characterization Report Approved	DEC reviewed and approved the 2022 Landfarm Sampling and Groundwater Monitoring Report. This report details the sampling of the 2019 and 2020 landfarmed soils at the KIC landfarm and the sampling of eight groundwater monitoring wells across Lots 3, 5, and Tract 4A. Soils were tilled in 2021 and 2022. Analytical results from the 2019 soil samples are below DEC Method Two Table B1/B2 Migration to Groundwater Soil Cleanup Levels. Soils from 2020 are still above DEC Cleanup Levels. Groundwater samples show contamination is still present in the groundwater underneath the site, with the highest concentrations being encountered in Wells MW5, MW9, and MW10. Free product was encountered in Well MW1 and possibly MW6.	Kelly Walker
9/12/2023	Site Characterization Workplan Approved	DEC reviewed and approved the 2023 Work Plan: Landfarm Sampling and Groundwater Monitoring. This document details the proposed sampling of the 2020 landfarmed soils and teh sampling of up to eight groundwater monitoring wells across Lots 3, 5, and Tract 4A. This work will be conducted during the 2023 field season.	Kelly Walker
9/22/2023	Site Characterization Report Approved	DEC reviewed and approved the Site Investigation Report (2022) from the BIA for the Former IHS/BIA Hospital-School Pipeline Release site. This document details the additional investigation of groundwater contamination at the site. Seventeen soil borings were advanced and six monitoring wells were installed in October 2021. Soil samples were also collected and analyzed petroleum hydrocarbons. Groundwater samples show contamination is still present at the site.	Kelly Walker
8/16/2024	Site Characterization Workplan Approved	DEC reviewed and approved the BIA Site Delineation and Groundwater Monitoring Work Plan. This work plan details the advancement of soil borings in the vicinity of the former pipeline area, focusing on delineating the maximum allowable concentration exceedances of diesel range organics (DRO) present in this location. In addition to advancement of soil borings, the groundwater monitoring well network at the site will be sampled to evaluate contaminant concentrations in groundwater at the site.	Kelly Walker
8/29/2024	Site Characterization Report Approved	DEC reviewed and approved the IHS 2023 Landfarm Sampling and Groundwater Monitoring Report. This work conducted during the 2023 field season included sampling of the landfarmed soils excavated in 2020 and sampling of the groundwater monitoring well network across the site. Results indicated the 2020 soils required additional remediation and will be sampled again at a future date. All groundwater samples indicated contamination is still present in all wells at Lots 3, 5 and Tract 4A.	Kelly Walker

Action Date

Action

Description

DEC Staff

9/29/2009

Update or Other Action

Chevron responded to ADEC's information request with a formal report from Arcadis.

Erin Gleason

12/24/2009

Potentially Responsible Party/State Interest Letter

A PRP letter was sent to the Indian Health Service. During the initial response to the release, the area of heaviest contamination was near the Former Hospital bulk above ground storage tanks. During a follow up meeting, IHS responded to the PRP letter by stating that other entities shared the responsibility for the release.

Kim DeRuyter

5/17/2010

Update or Other Action

Freedom of Information Act request letters sent to BIA and IHS.

Kim DeRuyter

6/23/2010

Meeting or Teleconference Held

Staff traveled to Kotzebue to discuss the historic fuel spill with Maniilaq, KIC, and the City.

Kim DeRuyter

8/10/2010

Potentially Responsible Party/State Interest Letter

A PRP letter was sent to BIA, as they owned all of the property during the 50's when the local residents state that they first began pulling oil out of shallow wells adjacent to the school/Former Hospital land holdings, and they also owned the school property through the mid 70's.

Kim DeRuyter

9/2/2010

Meeting or Teleconference Held

Staff conducted a teleconference with members of the Northwest Arctic School District, to discuss the historic school spill and the schools involvement.

Kim DeRuyter

9/7/2010

Update or Other Action

A meeting announcement was sent to all of the PRPs. The meeting is scheduled for Oct 13, 2010 in Kotzebue.

Kim DeRuyter

9/13/2010

Site Added to Database

A new site has been added to the database. This site has been pulled out of the City of Kotzebue.

Mitzi Read

9/13/2010

Update or Other Action

This site is associated with Hazard ID 394, City of Kotzebue (file 410.38.008). The City of Kotzebue database entry documents the site history and will be used for tracking pore water and groundwater conditions, and possibly contaminant migration due to the new sea wall currently under construction. Hazard ID 25558, IHS Kotzebue Former Hospital - School Pipeline Release will track further site characterization and potential remedial efforts associated with the historic releases on the School and Former Hospital properties.

Mitzi Read

9/13/2010

Exposure Tracking Model Ranking

Initial ranking with ETM completed for source area id: 78949 name: IHS Kotzebue Former Hospital - School Pipeline Release

Kim DeRuyter

10/13/2010

Meeting or Teleconference Held

A potentially responsible party meeting was held in Kotzebue. The purpose of the meeting was to bring the PRPs and stakeholders up to date on the site history, and forge an agreement to move forward toward site characterization. Present at the meeting were representatives for Chevron, Bureau of Indian Affairs, Indian Health Service, Maniilaq Association, the City of Kotzebue, Kikiktagruk Inupiat Corporation, and the Northwest Arctic Borough School District. Several members of the group decided to develop a technical team to develop a cost estimate for the site characterization. The technical team will disseminate information to their managers and legal staff, and all parties will meet to discuss the results in Anchorage sometime in early December.

Kim DeRuyter

10/15/2010

Potentially Responsible Party/State Interest Letter

Potentially responsible party letters were sent to the City of Kotzebue and Kikiktagruk Inupiat Corporation 10/15/10, Chevron 2/22/08, BIA 8/22/10, IHS 2/23/10 and the Northwest Arctic School District on 10/26/10, and the Department of Education and Early Developement on 8/23/11. Freedom of information request letters were sent to BIA and IHS on May 17, 2010.

Kim DeRuyter

10/22/2010

Meeting or Teleconference Held

CS staff met with the City Manager of Kotzebue to review and discuss the last weeks meeting in Kotzebue.

Kim DeRuyter

2/2/2011

Meeting or Teleconference Held

Contaminated Sites staff held a teleconference with the Bureau of Indian Affairs (BIA), the Indian Health Service (IHS), the Kikiktagruk Inupiat Corporation (KIC), the North West Arctic Borough School District, and the City of Kotzebue in response to a historic oil spill at the BIA school and former BIA hospital dating back to the 1950’s and 60’s. BIA responded to a freedom of information act request in October stating that were unable to locate any documents pertaining to these properties, and at a meeting last month BIA stated they would not consider their agency liable for the release until they received documents proving they owned and operated the facilities during the time of the release. DEC staff conducted interviews with Kotzebue elders, former BIA employees, and a contact at Crowley who had personally transferred fuel to the school hospital pipeline. During the interviews, BIA maintenance workers said they thought BIA had built the pipeline, and they personally tried to repair breaks in the line. Former school employees and several residents who lived near the pipeline also confirmed knowledge of the releases from the threaded 4 inch pipeline. CS staff asked what it would take to get BIA to seek funding for remedial action at the site. BIA requested additional time to retrieve archived documents, and offered to provided a copy of the documents received thus far, plus any additional documentation received from their archives by February 16th. IHS provided some historic articles on the original and former hospital from the Nome Nugget, and responded to the FOIA request with documents for the Department of Law. The City searched the former IHS property, now the attic of the City Shop and found City Council meeting minutes describing land transfers between the City and IHS. The School found a geotechnical report on the school property that they offered to provide after the meeting.

Kim DeRuyter

2/24/2011

Update or Other Action

During the February 2 meeting, BIA offered to try again to find some documentation on the School and former hospital facilities and provide it to the Department by February 16 th. No documentation was provided by the February 16, 2011 deadline, and BIA has not responded to phone calls or e-mails from the department.

Kim DeRuyter

8/22/2011

Potentially Responsible Party/State Interest Letter

Internal meeting and briefing to the program manager. Sent PRP letter to the Department of Education and Early Development.

Kim DeRuyter

11/1/2012

Meeting or Teleconference Held

A potentially responsible party meeting was held in Anchorage. The purpose of the meeting was to re-engage the PRPs and stakeholders in moving on toward initiating field work needed to complete site characterization and remediation. Present at the meeting were representatives from ADEC, Bureau of Indian Affairs, Indian Health Service, the City of Kotzebue, Kikiktagruk Inupiat Corporation, and the Northwest Arctic Borough School and District. It was decided that regular monthly meetings (at a minimum) would continue from this point forward in order to keep the project on track and facilitate completing necessary cost allocation and technical planning. The next meeting was scheduled for mid-December 2012 in Anchorage.

Kevin Gardner

12/13/2012

Meeting or Teleconference Held

A potentially responsible party meeting was held in Anchorage. The purpose of the meeting was to continue technical planning and cost allocation discussions with PRPs and stakeholders. Present at the meeting were representatives from ADEC, Bureau of Indian Affairs, Indian Health Service, the City of Kotzebue, Kikiktagruk Inupiat Corporation, and the Alaska Department of Education and Early Development (DEED.) IHS presented a detailed timeline recounting site-related actions involving construction, property transfers, fuel deliveries, maintenance operations and spill-related response and investigative actions by ADEC and consultants. BIA and IHS agreed to determine what steps they need to take to initiate site characterization work. AK DEED agreed to review their records regarding school property management actions for information that may be useful for allocation discussions.

Kevin Gardner

1/17/2013

Meeting or Teleconference Held

A potentially responsible party meeting was held in Anchorage. The purpose of the meeting was to continue technical planning and cost allocation discussions with PRPs and stakeholders. Present at the meeting were representatives from ADEC, BIA, IHS, City of Kotzebue, KIC, AK DEED and Northwest Arctic Borough School District (NWABSD.) Both BIA and IHS have made progress determining specific actions needed to effect site characterization and cleanup at the site. ADEC agreed to contact Chevron requesting further information regarding the delivery of fuel via the former pipeline. IHS also provided additonal maps and drawings that were missing from ADEC's files. Finally, personnel were identified to comprise both the Technical and Cost Allocation Teams.

Kevin Gardner

2/15/2013

Update or Other Action

ADEC sends information request letter to Chevron

Erin Gleason

2/20/2013

Meeting or Teleconference Held

A potentially responsible party meeting was held in Anchorage. The purpose of the meeting was to continue technical planning and cost allocation discussions with PRPs and stakeholders. Present at the meeting were representatives from ADEC, BIA, IHS, City of Kotzebue, KIC and Northwest Arctic Borough School District (NWABSD.) Both BIA and IHS continue to make progress toward obtaining funding for site characterization and cleanup. ADEC indicated that further communications with Chevron as agreed upon in January 2013 did not yield any more information regarding specific fuel delivery billings during the active life of pipeline.

Kevin Gardner

3/13/2013

Meeting or Teleconference Held

A potentially responsible party meeting was held in Anchorage to continue planning discussions with PRPs and stakeholders. Present at the meeting were ADEC and PRP representatives from BIA, IHS, City of Kotzebue, KIC, AK DEED and Northwest Arctic Borough School District (NWABSD.) Both BIA and IHS are close to obtaining funds to support site characterization and cleanup. IHS also plans to meet with Maniilaq Association in Kotzebue to begin discussions about contracting the necessary work. ADEC informed the group that the City of Kotzebue had formally requested that ADEC rescind their PRP status.

Kevin Gardner

3/18/2013

Update or Other Action

Chevron sends letter in response to ADEC's information request citing the 2009 Arcadis report. Chevron does not have any additional information outside of what they provided in 9/29/2009.

Erin Gleason

3/29/2013

Potentially Responsible Party/State Interest Letter

ADEC sent a letter to the City of Kotzebue informing them that the department has rescinded the City's designation as a PRP.

Kevin Gardner

4/16/2013

Meeting or Teleconference Held

A potentially responsible party (PRP) meeting and teleconference was held in Anchorage. The purpose of the meeting was to receive planning status reports for site characterization and cleanup. Present at the meeting were ADEC and PRP representatives from BIA, IHS, KIC, AK DEED, and the Northwest Arctic Borough School District (NWABSD). The City of Kotzebue was also in attendance. Funding was approved for both BIA and IHS and contract planning is underway with Maniilaq Association. ADEC requested that IHS develop a general schedule that identifies key milestones and serves as the basis for more detailed scheduling as the project progresses.

Kevin Gardner

5/22/2013

Meeting or Teleconference Held

A potentially responsible party (PRP) meeting and teleconference was held in Anchorage to determine current status of planning for site characterization and cleanup. Present at the meeting were ADEC and PRP representatives from BIA, IHS, AK DEED, and the Northwest Arctic Borough School District (NWABSD). PRP KIC was not present. The City of Kotzebue was also in attendance. Discussed various construction projects in the Kotzebue vicinity that do not affect the spill site. IHS has scheduled a site visit and meeting with Maniilaq Association for June 6, 2013.

Kevin Gardner

6/18/2013

Meeting or Teleconference Held

A PRP meeting and teleconference was held in Anchorage. The purpose of the meeting was to receive planning updates from IHS and BIA upcoming site characterization and cleanup. Present at the meeting were ADEC and PRP representatives from BIA, IHS, KIC, AK DEED, and the Northwest Arctic Borough School District (NWABSD). The City of Kotzebue was not in attendance. IHS completed a site visit and coordination meeting with Maniilaq Association on June 6 , 2013 and expect to resolve remaining contract issues by the end of the month. BIA will determine the extent to which they will be able to integrate their efforts with IHS.

Kevin Gardner

7/23/2013

Meeting or Teleconference Held

A PRP meeting and teleconference was held in Anchorage to track the status of site characterization planning by IHS and BIA. Present at the meeting were ADEC and PRP representatives from BIA, IHS, KIC, AK DEED, and the Northwest Arctic Borough School District (NWABSD). The City of Kotzebue, a non-PRP team member, was also present. IHS and BIA have coordinated extensively with Maniilaq Association and expect to soon have a final contract in place for use in obtaining the services of an environmental consultant for site work.

Kevin Gardner

8/29/2013

Meeting or Teleconference Held

A PRP meeting and teleconference was held in Anchorage to track the status of site characterization planning by IHS and BIA. Present at the meeting were ADEC and PRP representatives from BIA, IHS, KIC, and AK DEED. The Northwest Arctic Borough School District (NWABSD) and non-PRP City of Kotzebue were not present. IHS has executed a contract with Maniilaq Association who will now work to obtain the services of an environmental consultant to complete the IHS portion of site characterization. BIA has not yet finalized their contracting efforts for their portion of site characterization.

Kevin Gardner

9/26/2013

Meeting or Teleconference Held

A PRP meeting and teleconference was held in Anchorage to track the status of site characterization planning by IHS and BIA. Present at the meeting were ADEC and PRP representatives from BIA, IHS, KIC, AK DEED, and the Northwest Arctic Borough School District (NWABSD). Non-PRP Maniilaq Association was also present. The City of Kotzebue, a non-PRP team member, was not present. IHS informed the group that WHPacific, Inc. has been selected by Maniilaq Association to complete the IHS portion of site characterization. BIA has not yet finalized their contracting efforts for their portion of site characterization.

Kevin Gardner

11/6/2013

Site Visit

PRP meeting and site visit was held in Kotzebue, AK. In attendance were ADEC and PRP representatives from BIA, IHS, AK DEED, NWABSD, and KIC; non-PRP attendees included City of Kotzebue, Maniilaq Association and WHPacific, Inc. DEC, IHS, Maniilaq, and WHPacific discussed final contractual issues that have been resolved and a preliminary schedule to scope a site characterization workplan that will result in field work during spring/summer of 2014 in Kotzebue. A site visit was conducted by DEC, IHS, BIA, and WHPacific representatives following the meeting

Kevin Gardner

12/17/2013

Meeting or Teleconference Held

Contracting actions by IHS with Maniilaq Association for the site characterization in Kotzebue has been completed, and they have executed a contracted with the environmental consultant WHPacific, Inc. BIA is still working to finalize their contract. DEC identified need to continue cost allocation/recovery discussions, and U.S. Dept. of Justice attorney pointed out that U.S. government had not taken the position that the State of Alaska was entitled to cost recovery and that it was premature to make conclusions regarding site cost allocation until the site characterization was completed.

Kevin Gardner

1/28/2014

Meeting or Teleconference Held

Monthly PRP call-in took place. IHS reported on progress by their consultant obtaining/reviewing site files provided by ADEC. BIA has not yet finalized their contract w/Maniilaq Association for site characterization. DEC again discussed need for PRPs to begin work on cost allocation in support of future cost recovery efforts by DEC; U.S. Dept. of Justice and IHS reiterated their understanding and preference that further cost allocation work should await results from 2014 field work.

Kevin Gardner

2/25/2014

Meeting or Teleconference Held

BIA contracting effort for site characterization work during 2014 field season not completed. Planning underway by IHS and their consultant for work plan development and preliminary scoping meeting with DEC.

Kevin Gardner

3/25/2014

Meeting or Teleconference Held

Efforts to fund summer 2014 field work continue by BIA. WHPacific, on behalf of Maniilaq Association and IHS, will visit Kotzebue March 26-28, 2014 to collect information in support of an Environmental Site Assessment related to a property transaction affecting several lots in the project area of interest.

Kevin Gardner

4/30/2014

Meeting or Teleconference Held

Discussion focused on need for joint BIA/IHS-funded site characterization. BIA indicated they were closer to finalizing and obtaining a contract for the work.

Kevin Gardner

5/29/2014

Meeting or Teleconference Held

BIA/Maniilaq Association are close to making a contract award to WHPacific, same consultant awarded work by IHS for this site. Coordination with the City of Kotzebue was initiated by WHPacific regarding site operation and access issues during the summer field work.

Kevin Gardner

6/25/2014

Meeting or Teleconference Held

BIA completed execution of a contract through Maniilaq Association to WHPacific to conduct site characterization work. WHPacific provided overview of initial planning and coordination for the field work to be initiated in mid-August, 2104. Attorney for SOA updated attendees regarding status of cost allocation work. It is expected that invoices for prior site work by SOA will be finalized and that more specific information would be available to PRPs during the July 2014 teleconference.

Kevin Gardner

7/30/2014

Document, Report, or Work plan Review - other

Reviewed site characterization work plan submitted by Maniilaq Association/WHPacific on July 30, 2014.

Kevin Gardner

7/31/2014

Meeting or Teleconference Held

WHPacific has incorporated comments from IHS on site work plan and submitted draft work plan to DEC on July 30, 2014. Site work will commence during the week of August 11, 2014 in Kotzebue. Attorney for SOA discussed preliminary details regarding cost allocation letters to be mailed within the next two weeks to PRPs.

Kevin Gardner

8/4/2014

Site Characterization Workplan Approved

Provided conditional approval of site characterization work plan in order to expedite mid-August mobilization and field work by WHPacific for site investigation on behalf of IHS and BIA (through Maniilaq Association.) Letter to Maniilaq Association indicated work plan approval subject to review and incorporation of DEC recommended changes to work plan.

Kevin Gardner

3/20/2015

Document, Report, or Work plan Review - other

Reviewed draft site characterization report from WHPacific, Inc. for soil and groundwater sampling work that occurred on the project site during August 2014.

Kevin Gardner

2/16/2016

Update or Other Action

Updated ETM based on final site characterization report received 2/8/2016

Kevin Gardner

7/22/2016

Site Characterization Report Approved

Approved site characterization report from work completed between August 2014 and September 2015. Work included soil and groundwater samples collected from Lots 3, 4, 5, and Tract 4A as well as a shallow soil gas survey completed in the area of the Kotzebue elementary school playground. Lot 3 had no soil contamination above arctic zone cleanup levels; Lot 4 had once soil boring with DRO at 13100 mg/kg (cleanup level 12500); Lot 5 contaminants exceeding DEC cleanup levels included DRO (highest at 30500 mg/kg); 1-Methylnaphthalene (58300 mg/kg); 2-Methylnaphthalene (78200); P & M-Xylene (171000 mg/kg); o-Xylene (96500 mg/kg) and Naphthalene (33900 mg/kg); Tract 4A (school area) showed DRO in one sample at 17800 mg/kg.

Kevin Gardner

12/2/2016

Meeting or Teleconference Held

Contacted Dennis Jennings, the City Planner for Kotzebue, to follow-up on information received from Tom DeRutyer of SPAR-PPR regarding recent student evacuations at the Kotzebue Schools due to a fuel odor inside the building. Jennings stated that he knew of three evacuations - o/a 10/31/2016; 12/01/2016 and 12/02/2016. Mr. Jennings stated that the apparent source of the odors is, in their opinion, related to the historic pipeline fuel release for which a site characterization report was recently approved. While the recent site investigation did not include information regarding indoor petroleum odors at the school as a problem, Mr. Jennings provided anecdotal information that such odors have become increasingly prevalent and seem to occur immediately following a very sudden transition from extreme cold outdoor air temperatures to relatively warmer temperatures (as occurred during the week of 11/27 - 12/02 2016.

Kevin Gardner

7/24/2017

Document, Report, or Work plan Review - other

Received underground storage tank and water monitoring work plan from Tanana Commercial Company LLC on 7/18/2017. ADEC requests revisions. Revised work plan due 8/15/2017.

Erin Gleason

8/2/2017

Meeting or Teleconference Held

Monthly science meeting held to discuss future characterization and cleanup.

Erin Gleason

8/4/2017

Site Characterization Workplan Approved

Approved Tanana Commercial Company LLC work plan for UST removal.

Erin Gleason

8/16/2017

Update or Other Action

Sent work plan request letter to NWABSD for vapor intrusion problem at Kotzebue elementary school.

Erin Gleason

9/25/2017

Meeting or Teleconference Held

Monthly science meeting held to discuss future characterization and cleanup.

Erin Gleason

10/2/2017

Update or Other Action

Sent overdue work plan notice to Northwest Arctic Borough School District. To date, ADEC has not received a work plan for vapor intrusion at the school as requested.

Erin Gleason

10/6/2017

Update or Other Action

Work plan request letter sent to BIA. Work plan due 12/1/2017.

Erin Gleason

11/15/2017

Meeting or Teleconference Held

Monthly science meeting held to discuss future characterization and cleanup.

Erin Gleason

12/3/2017

Update or Other Action

Release of 200 gallons of diesel on Tract 4A adjacent to the teacher housing.

Erin Gleason

12/11/2017

Exposure Tracking Model Ranking

A new updated ranking with ETM has been completed for source area 78949 Kotzebue Former IHS/BIA Hospital - School Pipeline Release.

Erin Gleason

12/21/2017

Meeting or Teleconference Held

Vapor intrusion scoping meeting held with ADEC and Shannon and Wilson for the Kotzebue elementary school investigation.

Erin Gleason

12/27/2017

Update or Other Action

ADEC sent letter today to NWABSD stating that the work plan must be submitted to ADEC by 1/15/2018 or the State will assume lead role in the investigation.

Erin Gleason

1/9/2018

Update or Other Action

Draft vapor intrusion work plan received from NWABSD on1/9/2018. ADEC reviewed documents and requires revisions. Letter sent to NWABSD from ADEC requesting revisions by 1/19/2018.

Erin Gleason

1/19/2018

Update or Other Action

Revised draft of VI work plan received from S&W.

Erin Gleason

1/23/2018

Update or Other Action

Final draft vapor intrusion work plan received from NWABSD on 1/19/2018. ADEC reviewed documents and still requires revisions. Letter sent to NWABSD from ADEC requesting revisions by 1/26/18.

Erin Gleason

1/25/2018

Site Characterization Workplan Approved

Revised draft received 1/25/2018. Vapor intrusion work plan for NWABSD Kotzebue elementary school is now approved.

Erin Gleason

3/20/2018

Update or Other Action

ADEC received raw vapor intrusion data. No concentrations above acute human health risk.

Erin Gleason

3/20/2018

Update or Other Action

ADEC, ADOL, and UST program have review the IHS work plan for 2018 intermin action: tank removal and groundwater monitoring. Revisions have been requested and are due by 4/5/2018.

Erin Gleason

4/5/2018

Workplan Requested

ADEC has granted a 45 day extension for the IHS work plan revisions. The revised work plan is now due 5/21/2018.

Erin Gleason

4/12/2018

Update or Other Action

Received vapor intrusion assessment summary report from Shannon and Wilson, Inc..

Erin Gleason

5/9/2018

Update or Other Action

Sent letter to NWABSD requesting revisions to vapor intrusion report.

Erin Gleason

6/7/2018

Update or Other Action

Report deadline extended to 6/15/2018 per request of Shannon and Wilson

Erin Gleason

6/14/2018

Spill Transferred from Prevention Preparedness and Response Program

Spill transferred by PPRP staff John Ebel. Spill no. 17389933701; spill date = 12/3/17; substance = diesel; quantity = 200 gallons; source = aboveground heating oil tank at the teacher housing unit; GIS coordinates = 66.900382, -162.585638, WGS84, 6/19/18; description: The Northwest Arctic Borough School District (NWABSD) teacher housing is located on the Tract 4A in the southwest corner. It is adjacent to the property boundary with Lot 5 and 3rd avenue. The release occurred on 12/1/2018 from an AST attached to the teacher housing unit for heat. 30 cubic yards (cy) of diesel contaminated soil were excavated as part of the spill response effort and stockpiled across 3rd avenue to the east of the teacher housing buildings. PPR is retaining management of the backfill of the excavation and the disposal of the 30 cy of soil. Snow melt water was addressed under PPR during winter 2018.

Mitzi Read

7/3/2018

Site Characterization Report Approved

Received revised Vapor Intrusion Report from S&W on6/8/2018. ADEC has reviewed the report and it is now approved. ADEC is rejecting the sample results for IA-01 due to issues with the sample flow controller.

Erin Gleason

7/12/2018

Update or Other Action

Received revised work plan from Indian Health Service.

Erin Gleason

7/20/2018

Update or Other Action

letter from Alaska Department of Law sent on this day requesting that all PRPs attend a meeting to discuss the site plan and cost recovery on 8/14/2018

Erin Gleason

8/6/2018

Update or Other Action

Received revised work plan from Indian Health Service.

Erin Gleason

8/31/2018

Document, Report, or Work plan Review - other

ADEC has reviewed the revised Indian Health Service, interim action work plan dated 8/6/2018. The work plan details the removal of the regulated gasoline UST and dispenser adjacent to the Fergeson building, groundwater monitoring by Indian Health Service and Bureau of Indian Affairs, and treatment of contaminated soil via landfarming on the Kikiktagruk Inupiat Inc. property. ADEC has reviewed the work plan and requests revisions. Revised work plan due October 15, 2018. ADEC requests a meeting with IHS and their QEP to discuss the requested revisions.

Erin Gleason

9/7/2018

Meeting or Teleconference Held

Follow technical meeting held today. Each entity provided status update on their happenings since the last meeting. IHS provided update on their work plan and future actions were discussed.

Erin Gleason

9/7/2018

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. IHS provided update on their work plan and future actions were discussed.

Erin Gleason

10/12/2018

Update or Other Action

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting.

Erin Gleason

10/16/2018

Update or Other Action

Sent letter to IHS, KIC, and NWABSD requesting an inventory of current ASTs, USTs, and underground pipelines. Inventory due November 16, 2018. Based on the inventory they provide in November, the group will be able to conduct a complete inventory in summer 2019 for any tanks or pipes that are in an unknown status.

Erin Gleason

10/23/2018

Update or Other Action

Received revised interim action work plan from IHS and comment tracking matrix on 10/15/2018. ADEC has reviewed both documents and the 2018 interim action work plan is now approved. The work plan details the removal of a regulated UST at the Fergeson building, removal of contaminated soil from around the UST, soil samples in accordance the ADEC UST guidance, and groundwater samples. Groundwater samples will be collected from the same wells that were installed and sampled in 2014. The wells are located on Lot 3, Lot 4, Lot5, and Tract 4A. The IHS and the BIA are sharing costs for this work plan.

Erin Gleason

11/13/2018

Update or Other Action

Received tank inventory from NWABSD.

Erin Gleason

11/15/2018

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting.

Erin Gleason

11/19/2018

Potentially Responsible Party/State Interest Letter

Letter sent to the Northwest Arctic Borough

Erin Gleason

11/21/2018

Update or Other Action

Received partial tank inventory from IHS. AST inventory is still forthcoming.

Erin Gleason

11/29/2018

Update or Other Action

Received tank inventory from Maniilaq and IHS for Lots 3 and Lots 4.

Erin Gleason

12/7/2018

Meeting or Teleconference Held

December 3-6 ADEC conducted an informal visit to Kotzebue to meet community members, tour the site, and meet with stakeholders and responsible parties.

Erin Gleason

12/13/2018

Update or Other Action

ADEC assembled and emailed a draft site wide tank inventory to KIC, NWABSD, and Maniilaq/IHS today based on the information provided by each entity. ADEC has requested review and concurrence from each entity. Once the inventory is final, plans for finding any unknown tanks during summer 2019 can begin.

Erin Gleason

12/20/2018

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. NWAB, KIC, ADOL, ADEC, ADEED were present. IHS provided a written update via email for the group.

Erin Gleason

1/9/2019

Update or Other Action

The City of Kotzebue water plant has reviewed all of the water hook ups on Front Street. All houses are either on City water or unoccupied. Additionally, the City informs that the water along Front street is tidally influence and brackish.

Erin Gleason

1/10/2019

Meeting or Teleconference Held

Meeting with KIC to finalize the tank inventory on Lot 5 for KIC.

Erin Gleason

1/16/2019

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. IHS, KIC, ADEC, ADEED were present. ADEC review the groundwater trends and plan for the site, and the vapor intrusion summary.

Erin Gleason

1/17/2019

Update or Other Action

Received response letter from NWAB regarding their PRP status sent on 11/19/2018. They acknowledge the ADEC letter and confirm that they will participate in the technical working group.

Erin Gleason

2/25/2019

Workplan Requested

Sent work plan request letter to NWAB, NWABSD, KIC, IHS, BIA, and DEED. ADEC requests two work plans, one for tank inventory by 5/1/2019 and another for vapor intrusion by 6/1/2019.

Erin Gleason

2/28/2019

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. IHS, ADOL, ADEC, ADEED, NWAB were present. ADEC reviewed their plans to visit Kotzebue in the spring for a formal public meeting. ADEC reviewed the 2/25/2019 work plan request letter. DEED and IHS indicated that they might be able to secure some funding for the work.

Erin Gleason

3/15/2019

Exposure Tracking Model Ranking

A new updated ranking with ETM has been completed for source area 78949 Kotzebue Former IHS/BIA Hospital - School Pipeline Release.

Erin Gleason

3/27/2019

Meeting or Teleconference Held

Erin Gleason

5/6/2019

Meeting or Teleconference Held

Public Meeting Held in Kotzebue

Erin Gleason

5/7/2019

Meeting or Teleconference Held

Public discussion group held in Kotzebue

Erin Gleason

5/21/2019

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. IHS, City of Kotzebue, ADEC, were present.

Erin Gleason

6/27/2019

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. IHS, DEED, ADEC, Maniilaq, BIA, and Tanana Commercial Company (qualified environmental professional for Maniilaq).

Erin Gleason

7/11/2019

Meeting or Teleconference Held

Held meeting to discuss landfarm operation and future closure of landfarm with KIC, ADEC, Maniilaq, and Tanana Commercial Company. ADEC sent landfarm memo letter today stating the requirements and regulations.

Erin Gleason

7/24/2019

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, ADEED, NWAB, and Tanana Commercial Company (TCC) were present. TCC reports that work will begin in August.

Erin Gleason

8/8/2019

Site Visit

ADEC conducted a site inspection August 5-7th during the Underground storage tank (UST) removal and groundwater sampling event.

Erin Gleason

8/28/2019

Update or Other Action

Updated transport, treatment form received from Tanana commercial company to treat the 16 cubic yards of soil in the landfarm operated by KIC. ADEC approves updated request.

Erin Gleason

8/28/2019

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, ADEED, IHS, Maniilaq,BIA , and Tanana Commercial Company (TCC) were present.

Erin Gleason

9/4/2019

Potentially Responsible Party/State Interest Letter

Sent PRP letter to Maniilaq Association on this day.

Erin Gleason

9/23/2019

Update or Other Action

Updated tank and pipe inventory.

Erin Gleason

9/25/2019

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, ADEED were present.

Erin Gleason

10/8/2019

Update or Other Action

ADEC sent a compliance letter to all responsible parties on this date for failure to submit a vapor intrusion work plan. ADEC requests that a work plan be submitted by 10/30/2019 in order for parties to come into compliance.

Erin Gleason

10/30/2019

Update or Other Action

Received formal written response from Maniilaq regarding the 10/8/2019 compliance letter.

Erin Gleason

11/20/2019

Document, Report, or Work plan Review - other

Received UST removal and groundwater monitoring report from Tanana Commercial Company on behalf of the Maniilaq and the Indian Health Service on November 4, 2019. ADEC has reviewed the report and requests the addition of a soil chromatograph to illustrate the type of fuel present in the soil.

Erin Gleason

12/12/2019

Site Characterization Report Approved

ADEC received the revised report and it is now approved. In the 2019 UST removal and groundwater sampling report, contamination was found in soil and groundwater. The soil from the base and sidewalls of the UST excavation had GRO, DRO, 1-methylnaphthalene, 2-methylnaphthalene, 1,2-dibromethan, 1, 3,5-trimethylbenzene, naphthalene above cleanup levels. DRO concentrations in the soil were above ADEC maximum allowable cleanup levels. Arsenic was detected above cleanup levels; however there is no source of arsenic at the site and the concentration is attributed to background concentrations in the soil. Alaska is known to have high concentrations of arsenic in soil. Contaminants of concerns for groundwater were DRO, TAH, TAqH, RRO, 1,2,4-trimethylbenzne,benzene, 1,3,5trimethylbenzene, chloroform, and naphthalene. During the excavation of the tank, field screening became elevated one foot bgs and water was found at 4.5 bgs with a sheen. Based on this information in this report, further work is need. At a minimum sampling of the current wells, delineation of the extent of contamination, close out of the two product recovery wells, product recovery at MW1, and removal of all soil above maximum allowable. PCB may be removed from the list of COPC because they were not detected in any sample.

Erin Gleason

12/18/2019

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, KIC, IHS, and BIA were present.

Erin Gleason

1/23/2020

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, ADEED, IHS, and BIA were present.

Erin Gleason

2/19/2020

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, KIC, and IHS were present.

Erin Gleason

3/30/2020

Update or Other Action

Received work plan from Tanana Commercial Company on behalf of IHS and Manilaq Association. ADEC will review and provide comments.

Erin Gleason

4/22/2020

Site Characterization Workplan Approved

ADEC has reviewed the work plan and it is now approved. The schedule of the summer work may change due to the covid-19 pandemic.

Erin Gleason

5/18/2020

Update or Other Action

Sent printed copies of the 2019 Factsheet to Maniilaq, NWABSD, KIC, NWAB, Native Village of Kotzebue, City of Kotzebue, Elementary School, and NANA.

Erin Gleason

5/20/2020

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, KIC, Maniilaq, ADEED, Tanana Commercial Co, BIA, and IHS were present.

Erin Gleason

6/24/2020

Meeting or Teleconference Held

Teleconference held on this date for the monthly technical meeting. ADEC, ADEED, BIA, IHS, NWAB attended. Maniilaq sent an email update to share with group.

Erin Gleason

7/22/2020

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, ADEED, Tanana Commercial Co, BIA, and IHS were present.

Erin Gleason

8/26/2020

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, Tanana Commercial Co, BIA,NWAB, and IHS were present. Phase two of the summer field work is scheduled for mid september. Exact scope of work will depend on analytical results from lab. It will likely include groundwater sampling and excavation of highly contaminated soils.

Erin Gleason

9/23/2020

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, ADEED, KIC, and IHS were present.

Erin Gleason

9/28/2020

Meeting or Teleconference Held

Crowley Fuels LLC is doing a water pipe installation on Turf street. We anticipate that they will find contaminated soil and groundwater while excavating. Meeting was held on this date to discuss details of the project. Crowley will submit a work plan for review and approval.

Erin Gleason

10/7/2020

Site Characterization Workplan Approved

Received contaminated soil excavation work plan associated with the Crowley water line installation to the north of Tract 4A on 9/30/2020. ADEC has reviewed the work plan and it is now approved. The disposal method will depend on the volume of soil generated and level of contamination.

Erin Gleason

10/22/2020

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, BIA, NWABSD, Maniilaq, and IHS were present.

Erin Gleason

11/25/2020

Update or Other Action

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, BIA, NWABSD,and IHS were present.

Erin Gleason

12/17/2020

Meeting or Teleconference Held

ADEC received vapor intrusion data from Rescon on behalf of NWABSD. Data indicates indoor air is above target screening levels for benzene and naphthalene. ADEC met on this data to conduct preliminary review of data. Data indicates that the exceedances are not from the sub-slab and may be a secondary source in the building such as the boiler.

Erin Gleason

12/30/2020

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, BIA, NWABSD,and NWAB were present.

Erin Gleason

1/11/2021

Document, Report, or Work plan Review - other

Received 2020 Site Characterization and Soil excavation report from Tanana Commercial Company on behalf of Indian Health Service. ADEC will review and approve.

Erin Gleason

2/10/2021

Document, Report, or Work plan Review - other

Letter sent to Maniilaq on this date requesting revisions to 2020 report.

Erin Gleason

2/24/2021

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, KIC, IHS,and were present.

Erin Gleason

3/10/2021

Update or Other Action

Map of groundwater plume made in ADEC GIS mapper.

Erin Gleason

3/24/2021

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, KIC,DEED, TCC, Rescon, and IHS were present.

Erin Gleason

3/31/2021

Meeting or Teleconference Held

Meeting with Crowley and their QEP held on this date to discuss excavation for utility work planned in May. If water is encountered during excavation, a excavation dewatering permit with DOW may be needed. Crowley intends to conduct work when soil is frozen and no water is present. Should water be encountered, they will contact ADEC.

Erin Gleason

4/5/2021

Document, Report, or Work plan Review - other

Received vapor intrusion assessment for Kotzebue elementary school from Rescon on 3/15/21. ADEC has reviewed the report and requests two additions.

Erin Gleason

4/21/2021

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, KIC and BIA were present.

Erin Gleason

4/21/2021

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, KIC and BIA were present.

Erin Gleason

4/27/2021

Meeting or Teleconference Held

Meeting held today with ADEC CSP, PPR, KIC, and TPECI to discuss landfarm operation on Base Road. KIC will continue to till the landfarm summer 2021 and in the fall if the contamination seems to have degraded they will have TPECI sample for closure.

Erin Gleason

4/29/2021

Site Characterization Report Approved

ADEC has received the revised report from Tanana Commercial Co for the 2020 Site Characterization and limited removal. ADEC has reviewed the report and it is now approved. Letter sent on this date. All groundwater monitoring wells were above ADEC cleanup levels. The concentration of DRO in all monitoring wells had increased since 2019, except for MW10. MW1 and MW6 were not sampled due to the presence of free product. This is the first instance that MW6 has had free product. 170 cubic yards of contaminated soil was removed from lot 4 and taken to the KIC Base Road landfarm for treatment.

Erin Gleason

5/4/2021

Site Characterization Report Approved

ADEC received the revised Vapor Intrusion Report for the Kotzebue Elementary School on 4/29. ADEC has reviewed the report and it is now approved. The report indicates that petroleum vapor intrusion does not pose an unacceptable risk. Given the current site conditions and use, ADEC does not require further evaluation of vapor intrusion at present. However, there were detection of volatile organic compounds (VOCs) in the boiler room that may need to be addressed in order to minimize inhalation exposure risk to building occupants.

Erin Gleason

5/19/2021

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, KIC, IHS, TCC and ADEED were present.

Erin Gleason

6/16/2021

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, Maniilaq, ADEED, IHS, and BIA.

Erin Gleason

7/28/2021

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, Maniilaq, ADEED, KIC, IHS, and BIA.

Erin Gleason

8/11/2021

Document, Report, or Work plan Review - other

ADEC received a report from Crowley regarding a waterline installation on the north side of the site along Turf Street on 6/22/21. ADEC has reviewed the report and requests some revisions. Letter sent to Crowley on this 8/11/21.

Erin Gleason

8/17/2021

Site Characterization Workplan Approved

ADEC received a groundwater sampling and soil excavation and remediation work plan from Maniilaq Association in coordination with Indian Health Service on August 13, 2021. ADEC has reviewed the report and it is now approved. Work will be implemented fall 2021.

Erin Gleason

8/25/2021

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, Maniilaq, ADEED, and IHS were present.

Erin Gleason

9/14/2021

Site Characterization Report Approved

ADEC received revised report from Crowley on 9/3/21. ADEC has reviewed the report and it is now approved. Electronic letter sent to Crowley on this date. The report indicates that diesel range organics (DRO), tricholoethene, naphthalene, and chloroform are above ADEC cleanup levels in soil. Soil generated from the waterline replacement was placed into supersacks and shipped out of Kotzebue for disposal.

Erin Gleason

9/23/2021

Update or Other Action

ADEC approved the transport of 46 cubic yard of soil from the Crowley water line project to Seward. The soil is in super sacks and is contaminated with both diesel and chlorinated solvents. The sacks will be temporarily stored in Seward and then barged to Oregon for final disposal.

Erin Gleason

9/29/2021

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, Maniilaq, and IHS were present.

Erin Gleason

10/6/2021

Meeting or Teleconference Held

Kick off meeting with ADEC, BIA, and Kuna Engineering to discuss the upcoming October field work. Kuna will install groundwater monitoring wells in the road right of way. They have received permission from the City. They will sample soil along the historic pipelines throughout the site.

Erin Gleason

10/7/2021

Site Characterization Workplan Approved

ADEC received a draft work plan for groundwater monitoring well installation and soil sampling from the BIA written by Kuna Engineering on 9/16/21. ADEC has reviewed the work plan and requested revisions. Revised work plan received on 10/7/2021. ADEC has reviewed the revised work plan and it is approved. Letter sent to BIA on this date.

Erin Gleason

10/15/2021

Meeting or Teleconference Held

Meeting with ADEC, Crowley, Kuna Engineering, and BIA to discuss the locations of the proposed monitoring well locations along Shore Avenue and Turf Street (MW15 & MW16).

Erin Gleason

10/27/2021

Meeting or Teleconference Held

Follow up technical meeting held today. Each entity provided status update on their happenings since the last meeting. ADEC, TCC, BIA, and Kuna were present.

Erin Gleason

11/3/2021

Update or Other Action

Received field change noticed from Kuna Engineer on 11/3/21 detailing the work plan deviations from the October 2021 field work. Not all soil samples were collected due to the presence of utilities. ADEC has reviewed and signed the form. ADEC understands that work plans in rural Alaska do not always go according to plan

Erin Gleason

12/15/2021

Meeting or Teleconference Held

Meeting held with DEC, BIA, and Kuna to discuss 2021 field work and overall site status. Discussion held to determine next steps in the planning process and will touch base with BIA regarding project status in the new year.

Kelly Walker

3/30/2022

Document, Report, or Work plan Review - other

Review completed for 2021 Limited Removal Action, Groundwater Monitoring, and Landfarm Sampling Report and provided comments. Report details the limited contaminated soil removal at Lot 4. Groundwater sampling was completed at Tract 4A and Lots 3 and 5. Contaminated soils generated during the 2019 excavation were sampled at the landfarm where they are currently being treated. Analytical results indicated contaminant concentrations are above ADEC's Method Two Migration to Groundwater Soil Cleanup Levels.

Kelly Walker

3/30/2022

Document, Report, or Work plan Review - other

Review completed for 2022 Work Plan: Landfarm Sampling and Groundwater Monitoring and comments provided. This work plan details the planned groundwater sampling to be conducted at Lot 3, Lot 5 and Tract 4A. The soils generated in 2020 from a removal action at Lot 4, being treated at the landfarm, are to be sampled to determine contaminant concentrations.

Kelly Walker

7/29/2022

Site Characterization Report Approved

2021 Limited Removal Action, Groundwater Monitoring, and Landfarm Sampling Report reviewed and approved for the Kotzebue Former IHS/BIA Hospital - School Pipeline Release site. In 2021, contaminated soils were excavated and removed from Lot 4 and placed into the landfarm for soil remediation. Groundwater monitoring wells were sampled on Lots 3, 5, and Tract 4A. Landfarmed soils from 2019 were sampled to determine if petroleum contamination in soils were below ADEC Method Two Soil Cleanup Levels.

Kelly Walker

10/26/2022

Meeting or Teleconference Held

Meeting held with stakeholders to discuss 2022 field work updates. Landfarm soils were sampled and tilled during the 2022 field season. Analytical samples collected from 2019 soils, 2020 soils were field screened. Groundwater monitoring wells were sampled on Lots 3, 4A and 5.

Kelly Walker

1/30/2023

Site Characterization Report Approved

DEC reviewed and approved the 2022 Landfarm Sampling and Groundwater Monitoring Report. This report details the sampling of the 2019 and 2020 landfarmed soils at the KIC landfarm and the sampling of eight groundwater monitoring wells across Lots 3, 5, and Tract 4A. Soils were tilled in 2021 and 2022. Analytical results from the 2019 soil samples are below DEC Method Two Table B1/B2 Migration to Groundwater Soil Cleanup Levels. Soils from 2020 are still above DEC Cleanup Levels. Groundwater samples show contamination is still present in the groundwater underneath the site, with the highest concentrations being encountered in Wells MW5, MW9, and MW10. Free product was encountered in Well MW1 and possibly MW6.

Kelly Walker

9/12/2023

Site Characterization Workplan Approved

DEC reviewed and approved the 2023 Work Plan: Landfarm Sampling and Groundwater Monitoring. This document details the proposed sampling of the 2020 landfarmed soils and teh sampling of up to eight groundwater monitoring wells across Lots 3, 5, and Tract 4A. This work will be conducted during the 2023 field season.

Kelly Walker

9/22/2023

Site Characterization Report Approved

DEC reviewed and approved the Site Investigation Report (2022) from the BIA for the Former IHS/BIA Hospital-School Pipeline Release site. This document details the additional investigation of groundwater contamination at the site. Seventeen soil borings were advanced and six monitoring wells were installed in October 2021. Soil samples were also collected and analyzed petroleum hydrocarbons. Groundwater samples show contamination is still present at the site.

Kelly Walker

8/16/2024

Site Characterization Workplan Approved

DEC reviewed and approved the BIA Site Delineation and Groundwater Monitoring Work Plan. This work plan details the advancement of soil borings in the vicinity of the former pipeline area, focusing on delineating the maximum allowable concentration exceedances of diesel range organics (DRO) present in this location. In addition to advancement of soil borings, the groundwater monitoring well network at the site will be sampled to evaluate contaminant concentrations in groundwater at the site.

Kelly Walker

8/29/2024

Site Characterization Report Approved

DEC reviewed and approved the IHS 2023 Landfarm Sampling and Groundwater Monitoring Report. This work conducted during the 2023 field season included sampling of the landfarmed soils excavated in 2020 and sampling of the groundwater monitoring well network across the site. Results indicated the 2020 soils required additional remediation and will be sampled again at a future date. All groundwater samples indicated contamination is still present in all wells at Lots 3, 5 and Tract 4A.

Kelly Walker

Contaminant Information

Name

Level Description

Media

Comments

Control Type

Type

Details

Requirements

Description

Details

2022 Site Investigation Report

2021 Limited Removal Action, Groundwater Monitoring, and Landfarm Sampling Report

2022 Landfarm Sampling and Groundwater Monitoring Report

Hazard ID	Site Name	File Number
394	City of Kotzebue Areawide	410.38.008

Hazard ID

Site Name

File Number

394

City of Kotzebue Areawide

410.38.008

Missing Location Data

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Alaska Department of Environmental Conservation

Site Report: Kotzebue Former IHS/BIA Hospital - School Pipeline Release

Site Chronology

IC / Closure Details

Documents

Associated Sites

Problems/Comments

Action Information

Contaminant Information

Control Type

Requirements

2022 Site Investigation Report

2021 Limited Removal Action, Groundwater Monitoring, and Landfarm Sampling Report

2022 Landfarm Sampling and Groundwater Monitoring Report

Missing Location Data

State of Alaska Department of Environmental Conservation