| Action Date |
Action |
Description |
DEC Staff |
| 7/12/2011 |
Spill Transferred from Prevention Preparedness and Response Program |
Spill transferred by PERP staff Wesley Ghormley. Spill no. 09309928901; spill date = 10/16/09; substance = diesel; quantity = unknown; PERP file no. 102.02.113. |
Mitzi Read |
| 7/27/2011 |
Site Added to Database |
A new site has been added to the database |
Mitzi Read |
| 7/28/2011 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 79106 name: Used Oil AST & Buried Fuel Line |
Mitzi Read |
| 9/22/2011 |
Site Characterization Report Approved |
Site remediation report reviewed and comments sent to RP. Addtional site characterization, identification of off-site contaminant migration, and evaluation of remedial measures is required for this site. |
Jim Fish |
| 4/20/2012 |
Update or Other Action |
Letter received from BGES on behlf of Kiewit Infrastructure Group, with proposed sampling for work submittal.
|
Jim Fish |
| 6/19/2012 |
Document, Report, or Work plan Review - other |
Comments to work plan sent to consultant - suggest off-site characterization be conducted if contamination extends off property. Also suggested installation of permanant monitoring wells. Consultant indictaed petroleum fingerprinting analysis would be conducted(Tesoro North Store located upgradient). DEC suggested it was not necessary in light of extensive cleanup and monitoring actions at the Tesoro location. Data for site closure and groundwater monitoring from Tesoro sent to consultant. |
Jim Fish |
| 7/12/2012 |
Meeting or Teleconference Held |
Met with consultant (BGES) to discuss work plan and proposed sampling, analysis, and remedial evaluation. Amended work plan is pending.
|
Jim Fish |
| 7/16/2012 |
Site Characterization Workplan Approved |
Changes to work plan summarized in email; approved via email.
|
Jim Fish |
| 9/18/2012 |
Update or Other Action |
Work plan addendum recieved from consultant; Additonal monitoring wells proposed for installation this field season. A new COC (1,2,3 Trichloropropane) was found in soil (0.5 mg/kg)above cleanup levels. DEC sought confirmation from consultant. |
Jim Fish |
| 10/3/2012 |
Site Characterization Workplan Approved |
Work plan addendum approved. Additonal soil borings and monitoring wells (one located off site to the west) will be installed (wells to ~14 bgs), but not to deeper depths at this time. DEC requested deeper wells as TCP may be found deeper than the depth of the water table. Low level 8260C and 5035A fied preservation for TCP approved.
COCS include DRO, benzene, naphthalene, 1,2,4-trimethylbenzene, 1-methylnaphthalene, 2-methylnaphthalene, and 1,2,3-trichloropropane in soil; and GRO,DRO, RRO, benzene, 1,2,4-trimethylbenzene, naphthalene, 1-methylnaphthalene, 2-methylnaphthalene, benzo(a)anthracene, and benzo[a]pyrene in groundwater.
|
Jim Fish |
| 6/20/2013 |
Update or Other Action |
Recieved site characterization report from consultant |
Jim Fish |
| 9/27/2013 |
Update or Other Action |
Letter sent to RP asking for addtional site characterization (TCP chacraization in soil and gw, delineating petroleum impacts to soil and groundwater, and vapor intrusion evlauation)and MDL information for TCP. |
Jim Fish |
| 3/10/2014 |
Document, Report, or Work plan Review - other |
Work Plan for groundwater sampling/moniotring, additional soil borings, and soil gas sampling and vapor intrusion evaluation recevied. DEC comments included request to determine presence and recoverability of NAPL, approporiate methods for VOC analyses, additional contaminated groundwater delineatin off-site the property, and evaluation of floor drains, piping and UIC potential at neighboring building. |
Jim Fish |
| 4/4/2014 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 79514 name: Buried Fuel Pipeline |
Jim Fish |
| 4/9/2014 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 79515 name: Septic Tank |
Jim Fish |
| 4/9/2014 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 79516 name: Area adjacent to Used Oil Tank |
Jim Fish |
| 6/17/2014 |
Document, Report, or Work plan Review - other |
Received updated scope of work and responses to DEC comments. Changes in Vapor intrusion evlaution and schedule of groundwater moniotring proposed |
Jim Fish |
| 6/19/2014 |
Site Characterization Workplan Approved |
Approval given for groundwater sample collection from existing on-site monitoring wells, while addtional site characterization activities will be discussed with DEC and implemented later during the summer 2014. |
Jim Fish |
| 8/21/2014 |
Site Characterization Workplan Approved |
Approved second portion of site characterization work plan today - indoor/ourdoor air sampling & building surveys, temporary well point installations, soil borings, groundwater sampling. LNAPL was observed in moniotring well MW-2 during initial gw sampling event (June/july), but was not observed during ealry August, after heavey rainfall events. Awaiting sampling results.
|
Jim Fish |
| 4/13/2015 |
Update or Other Action |
Received April 2015 Site characterization addendum for soil, groundwater, and air sampling conducted during 2014. |
Jim Fish |
| 5/15/2015 |
Document, Report, or Work plan Review - other |
Emailed consultant to clarify indoor air target levels; received update on groundwater sampling events for 2015. |
Jim Fish |
| 6/17/2015 |
Document, Report, or Work plan Review - other |
Provided comments to April 2015 Site Characterization Addendum Report; requesting building survey of northern shop building; delineation of LNAPL associated with monitoring well MW-2, and acknowledgement of continued groundwater monitoring (under 2-year plan) and plans to advance additional soil boring on neighboring CMI property to the west. |
Jim Fish |
| 6/18/2015 |
Site Characterization Workplan Approved |
Approved work plan for advancing 12 soil borings and 3 temporary groundwater well points on CMI property; evaluation of LNAPL in monitoring well MW-2, and consolidation of all groundwater monitoring (from permanent and temporary wells) into a single report. |
Jim Fish |
| 5/10/2016 |
Update or Other Action |
Received a Site Characterization Report - Addendum dated May 5, 2016 from consultant |
Jim Fish |
| 6/3/2016 |
Update or Other Action |
Comments to 2015 Site Characterization Addendum report sent to consultant via email. |
Jim Fish |
| 6/8/2016 |
Meeting or Teleconference Held |
Telephone discussion with consultant on comments to addendum report; consultant will confer with owner and prepare comment responses. |
Jim Fish |
| 2/15/2017 |
Update or Other Action |
Received comments from consultant regarding 2016 Site Characterization Addendum and DEC correspondence concerning site-specific parameters for site-specific cleanup levels, groundwater COC trend analysis, a CSM, and Institutional Controls. |
Jim Fish |
| 3/24/2017 |
Update or Other Action |
Responded to comments received and requested update to Method 3 Cleanup levels determination, completed equitable servitude to record Institutional Controls for the site, and additional groundwater monitoring; referred to guidance on fOC and Closure policy. |
Jim Fish |
| 3/30/2017 |
Potentially Responsible Party/State Interest Letter |
PRP Letter sent to new property owner |
Jim Fish |
| 8/2/2017 |
Update or Other Action |
Conditional Closure letter from Region 10 EPA UIC Program received for Class V injection well (former septic tank).
|
Jim Fish |
| 8/18/2017 |
Update or Other Action |
Responded to email from consultant concerning soil borings/sample collection to determine fOC. And ACL will be generated from Method three calculator, using site specific data. A work plan describing the ACL is pending/forthcoming. |
Jim Fish |
| 2/5/2018 |
Update or Other Action |
Additional site data and Proposal for Method 3 cleanup level for DRO received from consultant. |
Jim Fish |
| 5/29/2018 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 79106 Used Oil AST . |
Jim Fish |
| 5/29/2018 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 79514 Buried Fuel Pipeline. |
Jim Fish |
| 10/3/2018 |
Meeting or Teleconference Held |
Teleconference with Kiewit staff - groundwater sampling planned for Fall 2018, and a work plan for additional soil borings and options to address contamination (spring/summer 2019) pending. |
Jim Fish |
| 10/8/2018 |
Update or Other Action |
Received work plan for Fall 2018 High Water Groundwater Monitoring, Spring 2019 Low Water Groundwater Monitoring, and Spring/Summer 2019 Four soil borings in Area 1 and Two soil borings in Area 2. |
Jim Fish |
| 10/12/2018 |
Site Characterization Workplan Approved |
2018-19 Work plan approved for groundwater monitoring, hot-spot soil boring advancement, and groundwater contaminant trend analysis |
Jim Fish |
| 12/11/2018 |
Document, Report, or Work plan Review - other |
Received the October 2018 Interim Groundwater Monitoring Report. |
Megan Roberts |
| 1/23/2019 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 79515 Septic Tank. |
Megan Roberts |
| 3/21/2019 |
Meeting or Teleconference Held |
Teleconference meeting held with Kiewit and DEC staff to review work progressing at the site and to discuss data gaps. |
Megan Roberts |
| 4/22/2019 |
Site Visit |
DEC staff conducted site visit to observe current site conditions. Environmental consultants were onsite to demonstrate groundwater sampling method. A manhole was recently discovered on the north side of the two-bay building that is believed to be the drainage point for the floor drain in that building. |
Megan Roberts |
| 6/10/2019 |
Meeting or Teleconference Held |
DEC staff, Kiewit staff, and Nortech held a teleconference to review work planned for 2019 and 2020 to discuss a path towards site closure. Kiewit indicated they would be providing two work plans, one to address drain investigation and DEC Project Manager characterization requests, and a second one to conduct hot spot excavations with multi-event groundwater monitoring. The goal is to close the site with institutional controls to limit exposure pathways. |
Megan Roberts |
| 7/8/2019 |
Workplan Requested |
Work plan deadline was extended to July 26,2019. |
Megan Roberts |
| 7/31/2019 |
Risk Assessment Workplan Approved |
Sections 5 and 6 of a Remedial Action Work Plan provided to the DEC on July 24, 2019 were approved. Section 5 included the decommissioning of the two monitoring wells, MW-1 and G-4 which have been demonstrated to not be impacted by contaminants and are located in an area subject to heavy use and damage by equipment. Section 6 included an investigation into the floor drains of the two- and four-bay buildings to evaluate where the systems drain. |
Shawn Tisdell |
| 8/13/2019 |
Site Visit |
DEC staff conducted a site visit to observe gauging of well MW-2 and the floor drain investigation into the 4-bay and the 2-bay buildings. A slight sheen was observed floating on top of water removed from MW-2. After cleaning out the floor drain in the 4-bay building, it appeared that the drain was completely sealed with concrete. The floor drain in the 2-bay building was connected to a 50 pipe running north to a cistern that was 20 north of the building. Water and sludge samples were collected for analytical analysis. After cleaning out the floor drain and the cistern, it appeared that both were enclosed in concrete. After cleaning the cistern, the cover was observed at the bottom. It had apparently fallen through the top opening. |
Shawn Tisdell |
| 9/3/2019 |
Document, Report, or Work plan Review - other |
A brief letter report was received describing a comprehensive review of files and documents related to a concrete plug/receptacle that was observed in the four-bay building during a site inspection. After reviewing more than 600 emails, photos and files pertaining to the site, as well as interviewing staff who had worked at the site between 1984 and 2004, no mention of the previous use could be ascertained. |
Shawn Tisdell |
| 10/25/2019 |
Document, Report, or Work plan Review - other |
Section 7 of a Remedial Action Work Plan provided by Kiewit to the DEC on July 24, 2019 was approved. This section entailed a file search of building documents to determine the use of a receptacle in the four-bay building. Section 8 of the work plan involved the excavation of grossly contaminated soil around MW-2. This section was not approved, as the DEC requested additional information including the evaluation of perfluorinated alkyl substances(PFAS)in media that may be removed from the site. |
Shawn Tisdell |
| 11/13/2019 |
Meeting or Teleconference Held |
DEC staff met with Kiewit representatives to discuss the 10/25/2019 DEC work plan review letter. Since the site is located within the City of Fairbanks Regional Fire Training Center plume (Haz ID 26309, file#102.38.182)PFAS sampling has been requested to determine how wastes associated with the proposed excavation should be handled. A brief PFAS groundwater sampling SOP will be submitted for DEC approval. After sampling results are received, modifications to the work plan will be made and the work plan will be resubmitted to the DEC. |
Shawn Tisdell |
| 5/7/2020 |
Meeting or Teleconference Held |
DEC staff participated in a web meeting with two representatives from Kiewit to discuss COVID-19 health mandates as they may impact cleanup response action at the site and discuss the timeline and proposed action as detailed in the 7/2019 workplan. Upcoming work is proposed to begin as soon as possible if the contractor qualifies under the current health mandates and DEC workplan approval is provided. |
Shawn Tisdell |
| 5/18/2020 |
Document, Report, or Work plan Review - other |
DEC staff reviewed Sections 8 and 9 of the "Former Kiewit Facility 2019 Remedial Action Work Plan" in regard to proposed excavation and groundwater sampling efforts. DEC also provided comments in response to Kiewit April 2020 letter. |
Shawn Tisdell |
| 9/15/2020 |
Meeting or Teleconference Held |
DEC staff met with Kiewit to discuss the proposed soil excavation and additional site work. Although the excavation was planned for this fall to time with the typical low groundwater, high rainfall events have raised groundwater to a higher level than desirable for conducting excavation. DEC approval was provided to Kiewit to consider delaying the excavation until the Spring or early summer of 2021. |
Shawn Tisdell |
| 9/21/2020 |
Site Characterization Report Approved |
The ADEC has reviewed and approves the October 2019 and May 2020 Groundwater Monitoring Reports. These results continue to indicate that groundwater contamination remains onsite primarily in the area of MW-2 and MW-3. Recommendations for future groundwater monitoring events was provided. |
Shawn Tisdell |
| 2/18/2021 |
Meeting or Teleconference Held |
DEC staff met with Kiewit staff and an environmental professional to discuss a potential change of remedial approach and will be expecting a deliverable to outline the feasibility of this approach. |
Shawn Tisdell |
| 11/5/2021 |
Offsite Soil or Groundwater Disposal Approved |
90 gallons (two-55 gallon steel drums),of petroleum contaminated purge water from 2021 field season will be transported by US Ecology to their facility at 1315 Queens Way, Fairbanks, AK. |
Shawn Tisdell |
| 9/14/2022 |
Document, Report, or Work plan Review - other |
Received the Spring 2021, Fall 2021, and Spring 2022 groundwater monitoring reports. These are currently under review. |
Shawn Tisdell |
| 5/11/2023 |
Meeting or Teleconference Held |
DEC project manager met with Kiewit staff and their consultant to discuss current site conditions, groundwater trends and pathway to site closure. A groundwater sampling. workplan will be submitted shortly for DEC review. |
Shawn Tisdell |
| 7/11/2023 |
Document, Report, or Work plan Review - other |
DEC reviewed June 26, 2023 Remedial Action Work Plan Addendum and emailed comments. The work plan outlines a multi-year sampling approach. This approach is to continue to collect groundwater data to evaluate natural source-zone depletion (NSZD)at the site. By continuing to sample site chemicals of concern on the site, trend analysis can be conducted to evaluate if contaminant levels are steady and/or decreasing. By collecting NSZD data (total and dissolved iron, total and dissolved manganese, methane, ethane, and ethene) biodegradation of petroleum contaminants can be evaluated. |
Shawn Tisdell |
| 2/7/2024 |
Document, Report, or Work plan Review - other |
Groundwater from six monitoring wells were sampled for petroleum contamination during September 2023.Contaminant levels are consistent with what has been observed in the past. The two source area wells, MW-2 and MW-3, continue to have contamination above cleanup levels. Downgradient wells MW-4 and MW-403B were below cleanup levels for all contaminants of concern. The report is available in the documents section of this site entry page. |
Shawn Tisdell |
| 5/14/2024 |
Update or Other Action |
A new consultant has been selected by the RP to manage cleanup at this site. A groundwater monitoring report will be submitted to the ADEC on June 14, and an updated remedial action workplan will be submitted by June 28, 2024. |
Shawn Tisdell |
| 7/18/2024 |
Site Characterization Report Approved |
The March 2024 Groundwater Monitoring Report was reviewed and approved. Six wells were sampled and contaminant levels were consistent with what was observed in the past. The report is provided as an attachment. |
Shawn Tisdell |
| 9/4/2024 |
Site Characterization Workplan Approved |
The July 26, 2024 updated remedial action workplan has been reviewed. The contractor, Ensolum, proposes to implement monitored natural attenuation (MNA) as the response action to address residual petroleum hydrocarbon impacts in the soil and groundwater at the site. Groundwater data from will be collected from four wells to evaluate petroleum contaminant concentrations, MNA and natural source-zone depletion (NSZD) processes. This work is scheduled for the fall of 2024. DEC requested PFAS sampling of investigative derived waste to determine disposal options. |
Shawn Tisdell |
| 9/17/2024 |
Site Visit |
DEC staff visited the site to observed collecting groundwater samples. MW-403A was sampled during our visit. |
Shawn Tisdell |
