| Action Date |
Action |
Description |
DEC Staff |
| 4/23/1992 |
Site Added to Database |
|
Former Staff |
| 1/5/1993 |
Site Ranked Using the AHRM |
Surface Water Exposure Index Value and multiple value changed from site managers form. |
Former Staff |
| 5/24/2004 |
Update or Other Action |
File number assigned and entered into the Fileroom DB and CS DB. |
Alyce Hughey |
| 7/26/2005 |
GIS Position Updated |
Using Figure 1 from a Results of Subsurface Investigations at the Former Tank Farm Facility, from ENSR, dated January 6, 1992, in conjunction with TopoZone Pro, entered the coordinates for this site. Metadata include No Topo Basemap, TopoZone Pro Street Map, Black and White Aerial Photo, on a Medium Size Map, View Scale 1:10,000, Coordinate Datum NAD83. High degree of confidence in accuracy of location. |
Alyce Hughey |
| 2/6/2006 |
Update or Other Action |
File name changed from ARCO Former Tank Farm to Beluga River Tank Farm on 2-6-06 per Don Fritz. |
Alyce Hughey |
| 6/20/2008 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed. |
Don Fritz |
| 11/16/2011 |
Update or Other Action |
Site transferred from Don Fritz to Peter Campbell per Paul Horwath. |
Alyce Hughey |
| 9/12/2012 |
Meeting or Teleconference Held |
Meeting held at the DEC office in Soldotna with ConocoPhillips to discuss the Beluga River Field site status. No new information has been presented at the Tank Farm site. |
Peter Campbell |
| 6/19/2018 |
Document, Report, or Work plan Review - other |
Soil management work plan approved for the installation of a produced water line adjacent to this site. The line will run from Pad h to DW-1 with lateral lines running to C Pad and E Pad. |
Peter Campbell |
| 3/20/2019 |
Workplan Requested |
A broad plume of extractable petroleum hydrocarbon (EPH) is centered north and east of the former tank farm facility. The plume appears to have originated from the former diesel pump building. The facility contained two 6,000-gallon diesel tanks, two 10,000-gallon diesel tanks and one 6,000-gallon gasoline tank. The gasoline tank was connected to an underground fuel line extending approximately 500 feet north. The underground fuel line served a gasoline dispenser pump located at a former garage. The diesel tanks were connected to lines supplying a diesel pump building immediately north of the facility. There was a significant groundwater monitoring network and groundwater remediation. Please determine the current groundwater quality. |
Peter Campbell |
| 4/20/2021 |
Workplan Requested |
Reiterate requirement for work plan from 2019. |
Peter Campbell |
| 6/30/2021 |
Document, Report, or Work plan Review - other |
2021 Site Characterization and Groundwater Sampling Work Plan ADEC Approval |
Peter Campbell |
| 1/25/2022 |
Document, Report, or Work plan Review - other |
ADEC agrees with the recommendations presented in the 2021 Interim Groundwater Monitoring Report but request that the source area be evaluated to assure that the site is appropriately assessed. The 2018 installation of a water line adjacent to this site encountered significant contamination. This area should be assessed for source and extent of impacts. Request that Hilcorp develop a work plan to accomplish these tasks. |
Peter Campbell |
| 6/23/2022 |
Document, Report, or Work plan Review - other |
Present a cover letter in the work plan that identifies the name and address of qualified environmental professional who prepared the work plan.
Name and address of person who the work plan is prepared for at Hilcorp.
Where is the reserve pit on Figure A3? It is referenced in the text on page 6 in the work plan.
Identify who is responsible for identifying and managing impacted soils prior to the QEP arriving on site?
The Field Sampling Guidance document has been updated to 2022. Please update your references and review the new guidance document.
Section 3.0. PID screening is not an option for determining if soils are clean. A PID may be used to segregate soils, but only laboratory testing is a valid method to determine the fate of soils. Using an arbitrary number of 20ppmV as a cut off is not valid. See ADEC Field Sampling Guidance 2022. Soils exhibiting odor, field screening detections, staining or other indicators of contamination will be subject to laboratory testing.
Page 7, 1st paragraph. The Field Sampling Guidance document states “the work plan will identify the collection sampling and frequency of sample.” Please include in these factors in this work plan.
|
Peter Campbell |
| 7/15/2022 |
Document, Report, or Work plan Review - other |
Review and approve Contaminated Soil and Groundwater Management Plan. |
Peter Campbell |
| 8/2/2023 |
Long Term Monitoring Workplan or Report Review |
Review and approve 2022 Draft Groundwater Monitoring Report, Beluga River Unit. The report calls for annual monitoring. DEC requests an evaluation of contamination discovered during a 2018 pipeline installation. Hydrocarbon concentrations in monitoring wells have decreased significantly over the course of monitoring. |
Peter Campbell |
| 8/3/2023 |
Workplan Requested |
Request Hilcorp assess contamination discovered during the 2018 pipeline installation and determine if groundwater was impacted. Require PAH sampling for wells not previously tested for these parameters and recommend future sampling of wells at up to three-year intervals. |
Peter Campbell |
| 8/22/2023 |
Meeting or Teleconference Held |
PAHs were eliminated as COCs in soil and groundwater in 2003 (in-source well HOS-C).
Groundwater monitoring once every 3 years. The next sampling event for this site will occur in 2025.
Three wells will be sampled for DRO and benzene: HOS-5, HOS-10, and downgradient well, FG-10.
ADEC acknowledges that the contamination found in 2018 during installation of the buried produced water line is part of the known contamination associated with this contaminated site. |
Peter Campbell |
| 8/30/2023 |
Document, Report, or Work plan Review - other |
2022 Groundwater Monitoring Report review and approve |
Peter Campbell |
| 9/13/2023 |
Long Term Monitoring Workplan or Report Review |
2023 Work Plan approval for the next sampling event in 2025 and every three years afterward. |
Peter Campbell |
