| Action Date |
Action |
Description |
DEC Staff |
| 3/14/1995 |
Site Characterization Report Approved |
(Old R:Base Action Code = SA2R - Phase II SA Review (CS)). Received and reviewed a phase 2 environmental investigation. |
Ray Dronenburg |
| 5/15/1995 |
Update or Other Action |
(Old R:Base Action Code = RAPR - Remedial Action Plan Review (CS)). Reviewed a remedial action plan. |
Ray Dronenburg |
| 5/19/1995 |
Site Added to Database |
Site added to database. |
Ray Dronenburg |
| 6/20/1995 |
Long Term Monitoring Established |
Structure has dirt floor with contamination remaining. Undergoing in-situ remediation. Periodic monitoring reports due. |
Ray Dronenburg |
| 4/25/1996 |
Site Ranked Using the AHRM |
Ranked by Shannon and Wilson. |
S&W |
| 11/17/2005 |
GIS Position Updated |
Using Figure 1 from a Screening Risk Evaluation for Bethel Utilities Corporation Power Plant Site, from Polarconsult, dated April 20, 1995, in conjunction with TopoZone Pro, entered the coordinates for this site. Metadata includes USGS Topo Map 1:24/25K, TopoZone Pro Street Maps, on a Medium Size Map, View Scale 1:24,000, Coordinate Datum NAD83. Moderate to High degree of confidence in accuracy of location. |
Alyce Hughey |
| 11/28/2005 |
Update or Other Action |
Received notification from AVEC that APUC denied their request to purchase the utility. The CAP that was submitted by AVEC was not implemented by them. AVEC provided an Anchorage address for bethel Utilities. A letter was sent requesting copies of any data/reports documenting cleanup and remediation of the contamination. |
Donald Seagren |
| 3/22/2006 |
Update or Other Action |
Received no response to a project status update request letter sent in November 2005. After reviewing the file and corporations database, a second project status update request letter was sent to the corporation President and Controller. Both letters were sent certified/ return receipt requested. The letter stated that if the corrective actions hadn't been completed, BUC would need to hire a consultant to develop the work plan and conduct the cleanup & assessment. |
Donald Seagren |
| 4/21/2006 |
Update or Other Action |
Responded to a request from BUC for a copy of the file & reports. Sent a copy of the entire file & reports and suggested a meeting/conference call be scheduled to discuss how to proceed and reach site closure. |
Donald Seagren |
| 5/14/2007 |
Exposure Tracking Model Ranking |
|
Donald Seagren |
| 6/11/2008 |
Update or Other Action |
Site transferred from Don Seagren to Paul Horwath, per Linda Nuechterlein. |
Alyce Hughey |
| 3/9/2012 |
Update or Other Action |
Project Summary and Current Site Conditions. Bethel Utilities Corporation began operation in 1976 following construction of the existing plant. The site is located southwest of central Bethel (Residential Area) and west of the hospital and adjacent to a residential apartment building, which is separated from the site by a gate and fence. A surface pond is located to the west/southwest of the Quonset Hut. Six deep wells exist at the power plant, with five of these wells installed as part of a waste heat and storage recovery system in the early 1980s. In 1995, it was reported that these five wells were no longer being used as part of a waste heat and storage recovery system. They have not been decommissioned. The domestic well at the plant extends through several hundred feet of permafrost to a potable aquifer. The adjacent properties are supplied water through the utilidor which is supplied by wells in the community similar to the onsite drinking water well. Native vegetation consists of a tundra mat over permafrost silty soils. A seasonal perched water table is found on top of the permafrost. The permafrost layer is estimated by local drilling contractors to be 200-400 feet thick and overlays a potable aquifer. Contaminated soil and groundwater remains in four areas. The Waste Oil Storage Area had TPH at 2 feet bgs at concentrations of 574 ppm to 3,630 ppm, and EPH at 2 feet bgs at a concentration of 275 ppm, based on a composite soil sample. The Interior of the Quonset Hut had TPH at 2 feet bgs at 3,120 ppm, at 4 feet bgs at 3,970 ppm, and at 6 feet bgs at 8,470 ppm. The Bulk Fuel and Lube Oil Location had TPH at 2 feet bgs at 537 pm and at 8 feet bgs at 1,480 ppm. Contaminated groundwater was found in the Bulk Fuel and Lube Oil Location with Trichloroethylene being detected at 0.105 ppm in the groundwater. A composite sample taken from four locations along the road way contained EPH at 315 ppm in samples collected at 2 and 4 feet bgs. No remediation efforts have ever been reported to ADEC. The soil sample data that has been received indicates that higher contaminant levels are located at depths of 4 to 8 feet bgs. One groundwater sample taken at the site, detected Trichloroethylene at 0.105 ppm (cleanup level is 0.005 ppm). The depth to the seasonally perched groundwater above the permafrost, and its flow direction has not been defined. |
Alyce Hughey |
| 5/19/2015 |
Potentially Responsible Party/State Interest Letter |
Issue PRP letter to Alaska Village Electric Cooperative (AVEC), who purchased the Bethel Power Plant from Bethel Utilities Corporation in 2014. AVEC is the current owner/operator of the Bethel power plant. |
Paul Horwath |
| 1/28/2016 |
Update or Other Action |
Attached the electronic copy of the 5/19/2015 PRP letter to this database, as a publicly accessible document. |
Paul Horwath |
| 12/31/2019 |
Potentially Responsible Party/State Interest Letter |
Issued PRP letter to Bethel Utilities Corporation who sold the Bethel Power Plant to Alaska Village Electric Cooperative (AVEC) in 2014. AVEC is the current owner/operator of the Bethel power plant. |
Jessica Hall |
| 1/2/2020 |
Workplan Requested |
Sent work plan request letter to Bethel Utilities Corporation and Alaska Village Electric Cooperative (AVEC). |
Jessica Hall |
| 3/3/2020 |
Update or Other Action |
Received and reviewed Travis/Peterson Environmental Consulting, Inc. response report to the December 31, 2019 letter request of Work Plan. A Work Plan Extension for March 31, 2020 was requested. |
Jessica Hall |
| 3/12/2020 |
Update or Other Action |
Received a call from by Meera Kohler CEO of Alaska Village Electric Cooperative, Inc. requesting a Work Plan extension for June 30th 2020. |
Jessica Hall |
| 5/22/2020 |
Update or Other Action |
Meera Kohler requested a two month extension on the work plan submittal, due to Rural communities having trepidations of non-residents coming into their communities (due to Covid 19) and it is unlikely to see significant changes to their requirements before the end of June. An extension for a Work Plan submittal is granted with a due date of August 301 2020.
|
Jessica Hall |
| 9/4/2020 |
Update or Other Action |
Received email from Meera Kohler requesting an extension for workplan submittal of September 20, 2020. Workplan extension granted. New due date is September 30, 2020.
|
Jessica Hall |
| 10/15/2020 |
Document, Report, or Work plan Review - other |
Sent Meera Kohler ADEC Comments on Bethel Utilities Corporation Power Plant Site Characterization Work Plan Bethel Utilities Corp. Power Plant (Hazard ID 2450.) |
Jessica Hall |
| 2/23/2021 |
Update or Other Action |
Check in with RP on status of work plan and intended 2021 field efforts. |
Jessica Hall |
| 4/26/2021 |
Update or Other Action |
William Stamm is the new President and CEO of AVEC. Bill is getting up to speed on the site and will be in touch soon.
|
Jessica Hall |
| 9/2/2021 |
Update or Other Action |
Received a Public Records request from Shannon and Wilson. Reviewed site for next steps. Requested site update from RP. A final work plan was requested as comments were sent to the RP October 15, 2020. |
Jessica Hall |
| 9/8/2021 |
Site Characterization Workplan Approved |
Sent RP approval letter for Bethel Utilities Corporation Power Plant Site Characterization Work Plan, dated February 2021. Soil and water will be sampled for DRO, GRO, RRO, VOCs, and PAHs. Analytical samples collected at Used Oil Drum Storage Area, will also be analyzed for RCRA metals and PCBs. |
Jessica Hall |
| 2/7/2023 |
Site Characterization Report Approved |
Received the site characterization report for 2022 field work on 2/7/2023. Concentrations of DRO were detected above groundwater cleanup levels in one sample (SB7-46) on the southwestern portion of the property. Concentrations of tetrachloroethylene (TCE) and cis-1,2-dichloroethene were revealed in the soil above Migration to Groundwater cleanup levels in sample SB-1 (completed as MW-1) in the northeastern corner of the property. For groundwater, concentrations of TCE and residual range organics (RRO) were revealed in groundwater samples from MW-1. RRO was also detected above cleanup levels in MW-3, in the southwestern corner of the property. ADEC is requesting a work plan addendum to address remaining data gaps and continue monitoring in 2023. |
Naomi Mason |
