Action Date |
Action |
Description |
DEC Staff |
10/23/1989 |
Leaking Underground Storage Tank Release Confirmed - Petroleum |
LUST Site created in CSP for source area ID 78451 ADD; |
Former Staff |
10/23/1989 |
Site Added to Database |
|
Former Staff |
1/9/1994 |
Update or Other Action |
RPL2; Peterson sent PRP-CS Database Notification Letter to RP requesting update and more environmental information concerning contaminated site. RP rec'd letter, but as of this "complete date" no response. |
Former Staff |
6/6/1994 |
Update or Other Action |
CORR; Wingerter sent letter informing RP of their financial liability under new ADEC cost recovery policy. State is authorized, under Section 9003(h) of the Resource Conservation and Recovery Act to take action on this LUST facility. |
Former Staff |
7/18/1995 |
Release Investigation |
SI; DEC reviewed tank removal report for Alaska Mechanical Fuel Services. Shannon and Wilson to ensure integrity of the building placed contaminated soil in the excavated area and covered it with liner. 60 cubic yards of gravel is stockpiled at the site. DEC requested a monitoring of a nearby drinking water well. S&W will submit a in-situ cleanup plan. |
Former Staff |
5/10/1996 |
Leaking Underground Storage Tank Cleanup Initiated - Petroleum |
LCAU; Removal of four USTs and 60 cubic yards of contaminated soil - stockpiled on site. |
Former Staff |
11/20/1997 |
Potentially Responsible Party/State Interest Letter |
ADEC sends Notification of Intent to Cost Recover Letter to Current Owner: ALASKA MECHANICAL |
Former Staff |
5/1/1998 |
Release Investigation |
Release investigation submitted. Four borings were installed. Gasoline and diesel contamination were found extending beyond the former excavation limits to a depth of at least 36 feet directly under the former tanks and dispensers. Contamination may extend beneath the building. Groundwater was observed but is believed to be perched water. A drinking water sample collected at the adjacent motel was not contaminated. |
Janice Wiegers |
6/25/1999 |
Leaking Underground Storage Tank Corrective Action Underway |
Corrrective action plan submitted. Plan includes design for passive vapor extraction (PVE), groundwater quality assessment, indoor air quality assessment, landfarming of the existing soil stockpile. |
Janice Wiegers |
1/31/2000 |
Update or Other Action |
Corrective action summary submitted. Toluene was detected in indoor air samples from the shop, but the levels were generally below OSHA standards for fuel facilities. The drinking water well at the adjacent motel was sounded. The drinking water aquifer appears to be at least 70 feet deeper than the peviously observed perched water. |
Janice Wiegers |
11/9/2000 |
Update or Other Action |
Corrective action progress report submitted. Six additional passive vapor extraction wells were added to the two that were intalled during the release investigation. |
Janice Wiegers |
1/8/2002 |
Update or Other Action |
Corrective action progress report submitted. |
Janice Wiegers |
1/23/2002 |
Update or Other Action |
ADEC Drinking Water Program sends letter reducing requirement for sampling drinking water well at adjacent hotel to once per year. |
Janice Wiegers |
8/24/2005 |
Update or Other Action |
ADEC Drinking Water Program indicated that water results from the Kelly's well were non-detect for BTEX in both 2003, 2004 and 2005. |
Deborah Williams |
4/9/2007 |
Exposure Tracking Model Ranking |
Initial ETM ranking complete |
Evonne Reese |
5/9/2008 |
Update or Other Action |
Letter sent to RP requesting current status of site. No additional information has been received since 2005 request for NFRA. |
Tamara Cardona-Marek |
5/23/2008 |
Update or Other Action |
Received call from RP. Will send recent sample results from Kelly's well and arrange to collect confirmation samples this year. |
Tamara Cardona-Marek |
1/13/2009 |
Update or Other Action |
Project update for site was received and reviewed by DEC. Vapor intrusion exposure pathways remain at the site and soil between the Interior Texaco building and Kelly's Country Inn should be screened for vapors.
Additional soil samples should be collected along the north property line.
Additional sampling of the landspread soil is not needed and no further action is required for the stockpile. |
Tamara Cardona-Marek |
5/22/2009 |
Update or Other Action |
DEC received Shannon and Wilson's proposal to CEM Leasing for additional site characterization at the Interior Texaco site. |
Tamara Cardona-Marek |
3/30/2010 |
Update or Other Action |
ADEC received Shannon & Wilson's Site Characterization Report and Request for Cleanup Complete with Institutional Controls Status. |
Amy Rodman |
4/7/2010 |
Update or Other Action |
LUST site created in CSP database for source area USTs, 78452 |
Tamara Cardona-Marek |
6/16/2014 |
Potentially Responsible Party/State Interest Letter |
PRP letter mailed to Mr. Weymiller with CEM Leasing, Inc. (Received 6/24/14) |
Amy Rodman |
6/30/2014 |
Update or Other Action |
Emailed RP request for workplan. |
Amy Rodman |
12/1/2015 |
Update or Other Action |
Sent follow up email request for WP review for next field season. |
John Carnahan |
12/17/2015 |
Meeting or Teleconference Held |
Meeting with RP and consultant to discuss the need for historical review of outstanding issues that preclude closure with ICs. Consultant to review history and provide summary of data gaps and recommend proposed course of action to help establish closure criteria. |
John Carnahan |
8/12/2016 |
Meeting or Teleconference Held |
Meeting with RP and RP's consultant to discuss prior draft workplan, and to formulate approach to address future assessment, to include delineation of horizontal and vertical extent, and potential SVE evaluation of effectiveness of historic passive SVE cleanup. |
John Carnahan |
9/12/2016 |
Site Characterization Workplan Approved |
Workplan to investigate soil and groundwater at site approve - Revised Work Plan, Interior Texaco (Buffalo Service Center), Limited Site Characterization, Delta Junction, Alaska, September 2016 |
John Carnahan |
12/2/2016 |
Document, Report, or Work plan Review - other |
Provide interim comments to 2016 RI report, with response to closure request to follow. |
John Carnahan |
12/5/2016 |
Potentially Responsible Party/State Interest Letter |
PRP letter sent to current owner of property. Letter followed with explanation letter regarding coordination on long-term site management. |
John Carnahan |
2/28/2017 |
Document, Report, or Work plan Review - other |
DEC Comments – DRAFT Site Characterization Report, Delta Junction, Alaska, October 2016 provided to RP and consultant. Include detailed analysis of closure request. |
John Carnahan |
7/26/2017 |
Meeting or Teleconference Held |
Meeting with property owners to discuss status of site, and review Site Closure Checklist and DEC review of 2016 investigation. |
John Carnahan |
8/29/2017 |
Meeting or Teleconference Held |
Meeting with RP consultant to discuss work plan for 2017 release investigation. |
John Carnahan |
6/18/2018 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 80239 name: Garage Floor Sub-Slab |
John Carnahan |
6/22/2018 |
Document, Report, or Work plan Review - other |
Provided review comments on Work Plan and FS report with approval to move forward. |
John Carnahan |
2/5/2019 |
Update or Other Action |
Provide comments on GW monitoring and SVE testing report for work completed during 2018. |
John Carnahan |
4/22/2019 |
Document, Report, or Work plan Review - other |
Provide review and comments for 'Final Groundwater Monitoring and SVE Feasibility Study Report, Interior Texaco, Delta Junction, Alaska, March 2019. |
John Carnahan |
7/15/2019 |
Risk Assessment Workplan Approved |
Approval to proceed with work as outlined in the July 9, 2019 final work plan addendum. The proposed work includes conducting another air-sampling event to evaluate the vapor intrusion pathway, decommissioning the eight remaining groundwater-monitoring wells, transporting and disposing of five drums of soil cuttings from previous site work and preparing a report summarizing the proposed activities. |
Shawn Tisdell |
1/22/2020 |
Document, Report, or Work plan Review - other |
DEC received 2019 Summary Report presenting results for 2019 activities including a vapor intrusion assessment and well decommissioning activities. Justification for site closure was also presented. |
Shawn Tisdell |
10/30/2020 |
Cleanup Complete Determination Issued |
|
Shawn Tisdell |
10/30/2020 |
Institutional Control Record Established |
Institutional Controls established and entered into the database. |
Shawn Tisdell |
10/30/2020 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 78452 USTs. |
Shawn Tisdell |
1/7/2022 |
Institutional Control Update |
A catastrophic roof collapse occurred at the Buffalo Service Center and a Notice of Building Rehabilitation/Reconstruction was provided to the ADEC in accordance with the Activity and Use Limitations set forth in the Environmental Covenant that is attached in this database. The ADEC will work with the responsible party to minimize potential exposure of workers or other building occupants to contamination remaining at the site. |
Shawn Tisdell |
8/17/2022 |
Institutional Control Compliance Review |
All ICs are in compliance. DEC is working with RP to maintain IC compliance as the shop/garage is being rebuilt following the roof collapse that occurred during the winter of 2021/2022. |
Shawn Tisdell |
9/1/2022 |
Site Characterization Workplan Approved |
Following the 12/2021 roof collapse of the shop, debris has been removed and replacement is planned for the Fall of 2022. To comply with institutional controls, the RP has contracted with an environmental consultant to guide screening, sampling and handling of potentially contaminated soil beneath the former shop and remove obviously contaminated soil if necessary. Most of the subslab soil will not be disturbed, however a 40 foot trench needs to be temporarily excavated to replace the damaged septic line. This excavated soil will be temporarily stockpiled and returned to the excavation if no field evidence of contamination. If evidence of contamination, the soil will be stockpiled and sampled to determine treatment and/or disposal options. Field screening and analytical samples will be collected. Work is scheduled for September 2022. Following the sampling event, a sampling report will be submitted to the DEC. |
Shawn Tisdell |
6/16/2023 |
Site Characterization Report Approved |
On May 12, 2023, the DEC received a Summary Report for Buffalo Center Service, titled “2022 Environmental Services-DEC”. This report summarized the September 2022 characterization of soils underlying the shop at the Buffalo Center Service building in accordance with institutional controls that had been placed on the location in October 2020 to manage future exposure risk of contamination remaining on the site. Field screening and analytical samples were collected from the soil surface after the slab was removed and from the excavation trench sidewalls and base before the new septic line was installed. Diesel range organics (DRO) and tetrachloroethene were detected at levels up to 9,050 mg/kg and 0.565 mg/kg respectively in the excavation and in the stockpile at up to 2,010 mg/kg. These levels are above migration to groundwater cleanup levels, but below inhalation/ingestion and human health levels. A sub-slab depressurization system and a vapor barrier (W.R. Meadows PERMINATOR® HP 15 Mil Underslab Vapor Barrier) were installed during shop reconstruction. The 11 cubic yard stockpile remains on site and will require additional management. |
Shawn Tisdell |
7/29/2024 |
Update or Other Action |
A letter was provided to Three Bears Alaska to clarify the location where the Activity and Use Limitations apply as identified in the 2020 Environmental Covenant. |
Shawn Tisdell |
10/30/2024 |
Institutional Control Compliance Review |
This site has become directly associated with the Buffalo Center Service UST Facility 125 site as both sites are now under the management of Three Bears Alaska. Three Bears is working with the DEC to manage institutional controls at this site. |
Shawn Tisdell |