| Action Date |
Action |
Description |
DEC Staff |
| 2/9/2012 |
Potentially Responsible Party/State Interest Letter |
|
Keather McLoone |
| 2/13/2012 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 79263 name: 2007 Generator Fuel Storage Spill |
Bill O'Connell |
| 3/23/2012 |
Site Added to Database |
A new site has been added to the database |
Mitzi Read |
| 3/23/2012 |
Spill Transferred from Prevention Preparedness and Response Program |
Spill transferred by PERP staff Wesley Ghormley. Spill no. 07309903701; spill date = 2/6/07; PERP file no. 330.02.073; substance = diesel; quantity = ~4,000 gallons; source = day tank in a generator building; description: Automatic shutoff switch failed causing the 10,000-gallon storage tank to overfill the day tank. Note: PERP staff will retain management of the resulting two stockpiles.
This spill initially added to Hazard ID 1436 (file no. 330.38.002) on 1/19/12, but was entered as a separate site (Hazard ID 25856) on 3/23/12 at the request of the project manager. |
Mitzi Read |
| 3/27/2012 |
Document, Report, or Work plan Review - other |
Reviewed Contaminated Soil Stockpile Monitoring Report for Coldfoot Camp. 52 soil samples were collected for field screening. PID readings ranged from 0.0 ppmv to 528 ppmv, indicating portions of the stockpile are still contaminated. No analytical samples were collected. |
Bill O'Connell |
| 8/27/2013 |
Document, Report, or Work plan Review - other |
Reviewed Monitoring Well Installation and Corrective Action Plan for Coldfoot. The objective of the work is to delineate the horizontal and vertical extent of contamination resulting from a 2007 diesel spill. Three boreholes will be advanced, soil samples will be collected, the boreholes will be completed as monitoring wells, and groundwater samples will be collected. Soil samples will also be collected from the onsite stockpile created from the spill response based on field screening results. |
Bill O'Connell |
| 6/27/2014 |
Update or Other Action |
Date of letter sent to Sukakpak Inc asking for status of work planned and the intentions to conduct the planned work. This letter was sent as followup to phone call to Sukakpak representative that had indicated the work had not yet been conducted. A request that ADEC be informed of Sukakpak's intentions in the matter by July 10th had not been completed as of July 17th. |
Keather McLoone |
| 8/20/2014 |
Update or Other Action |
On today's date, CS received a reporting document dated March 2014. |
Keather McLoone |
| 8/21/2014 |
Update or Other Action |
Another large release occurred in April of this year at a heating oil tank. |
Keather McLoone |
| 9/9/2014 |
Document, Report, or Work plan Review - other |
The Contaminated Sites Program (CSP) reviewed the "revised" Groundwater Monitoring Well Installation and Stockpile Monitoring Report for the Coldfoot Camp Generator Release site, dated December 23, 2014. During the investigation, seven soil borings were advanced around the source area of the spill, four of which were completed as groundwater monitoring wells. Samples were collected during drilling, from the monitoring wells, and from one of the soil stockpiles. The nature and extent of contamination was not defined. The CSP requested a work plan to delineate the plume area and resample the monitoring wells by November 1, 2014. See file for additional CSP comments regarding report. |
Joshua Barsis |
| 6/9/2015 |
Document, Report, or Work plan Review - other |
Reviewed "Soil Stockpile Management Plan", dated May 29, 2015. Plan proposes to till, monitor, and sample pile until soil meets ADEC cleanup levels. |
Joshua Barsis |
| 6/12/2015 |
Document, Report, or Work plan Review - other |
The Contaminated Sites Program (CSP) reviewed the 2014 Groundwater Monitoring Report for the Coldfoot Camp Generator Release site, dated June 9, 2015. In August of 2014, Monitoring Wells MW1, MW2, MW3, and MW4 were sampled and analyzed for GRO, DRO, and BTEX. The samples collected from MW1 exhibited concentrations of DRO up to 4.3 mg/L. All other samples were below cleanup levels for all compounds. |
Joshua Barsis |
| 7/10/2015 |
Document, Report, or Work plan Review - other |
Reviewed the 2014 Groundwater Monitoring Report, dated June 9, 2015. The report documented groundwater sampling activities completed in August 2014. Monitoring Wells MW1, MW2, MW3, and MW4 were sampled and analyzed for GRO, DRO, and BTEX. The samples collected from MW1 exhibited concentrations of DRO up to 4.3 mg/L. All other samples were below cleanup levels for all compounds. In a letter dated 7-10-15, ADEC requested semi-annual groundwater monitoring in 2016 for Monitoring Well MW1. |
Joshua Barsis |
| 1/5/2016 |
Document, Report, or Work plan Review - other |
Reviewed the Groundwater Monitoring Well Installation Corrective Action Work Plan, dated December 15, 2015. Proposed activities include advancing several soil borings, at least three of which will be completed as monitoring wells, and collecting soil and groundwater samples as appropriate. |
Joshua Barsis |
| 1/23/2018 |
Document, Report, or Work plan Review - other |
Reviewed the following two reports: the 2016 Groundwater Assessment and Stockpile Monitoring Report, dated January 12, 2018 and the 2017 Groundwater Monitoring and Stockpile Monitoring Report, dated January 18, 2018. Both reports are relevant to both of the sites located in Coldfoot; the Coldfoot Camp Generator Release site (330.38.123) and the Coldfoot Camp Crew Quarters Fuel Line site (330.38.132). Activities completed in 2016 generally included advancing 8 boreholes, installing 4 permanent monitoring wells, and collecting soil and water samples as applicable, including from the onsite drinking water well. Additionally 3 of 8 total wells were surveyed to determine groundwater flow directions. Well MW-1, associated with the generator release site could not be sampled because an emergency generator was installed over the monument of MW-1. None of the soil or water results exceeded the most stringent ADEC cleanup levels. Groundwater flow direction was determined to be 85 degrees west. Water samples were again collected from Monitoring Wells MW2, MW3, and MW5 through MW8 in 2017. Well MW1 was located under the emergency generator (noted in 2016), however was partially destroyed and filled with gravel. Well MW4 was not located. It was noted in the 2017 report that an excavation to replace an adjacent faulty underground propane tank occurred in the vicinity of MW4 and it is likely that the well was destroyed during these activities. None of the water sample results from the 2017 effort exceeded the Table C groundwater cleanup levels. Continued evaluation of the land-farmed soils (Stockpiles 2, 3, and 4) was completed during both the 2016 and 2017 efforts. Samples collected from the east half of Stockpile 2 were below ADEC cleanup levels. Generally, results of the 2016 and 2017 effort revealed that the extent of contamination is bounded, except to the east of Well MW1 (historically the most contaminated well). ADEC requested a work plan for further delineation by March 1, 2018. |
Joshua Barsis |
| 9/18/2018 |
Document, Report, or Work plan Review - other |
Reviewed the Groundwater Monitoring Well Installation/Corrective Action Work Plan, dated September 14, 2018. Proposed activities generally include replacing and sampling Well MW1, surveying all existing wells, decommissioning Well MW3, and further evaluation of the stockpiled soils. |
Joshua Barsis |
| 12/2/2021 |
Update or Other Action |
Emailed RP for a site update and to see if the below work plan had been initiated. The Alaska Department of Environmental Conservation (ADEC) sent a letter dated September 18, 2018, discussing the Groundwater Monitoring Well Installation/ Corrective Action Work Plan, dated September 14, 2018. |
Jessica Hall |
| 1/11/2022 |
Update or Other Action |
Request site update from RP, sent via certified mail. |
Jessica Hall |
| 4/18/2023 |
Compliance Advisory Letter |
RP was sent a Compliance Advisory Letter on 4/17/2023 after several requests for updates and attempts to contact by previous project manager. In September 2018, ADEC sent approval of Groundwater Monitoring Well Installation/ Corrective Action Work Plan. There have been no summary reports or updates on any work done at the site since. The RP has been requested to provide an update on the work plan as well as the maintenance and condition of on-site stockpiles by May 31, 2023. |
Dawn Wilburn |
| 5/15/2023 |
Document, Report, or Work plan Review - other |
Received email from RP's consultant with updates on activities at the site. An updated summary report will be sent soon. |
Dawn Wilburn |
| 7/31/2023 |
Document, Report, or Work plan Review - other |
Sent RP comments on 2018 Monitoring Well Installation, Groundwater Monitoring, and Stockpile Monitoring Report submitted on July 19, 2023. Requested a revised report be submitted. |
Dawn Wilburn |
| 2/2/2024 |
Site Characterization Report Approved |
Reviewed the revised 2018 site investigation report received February 2024 and sent approval letter to RP. This report summarized groundwater sampling, stockpile soil sampling, decommissioning of well MW3 and installation of well MW1R and MW9. Groundwater contamination was below cleanup levels. Samples from stockpile 2 indicated concentrations were below cleanup levels and stockpiles 3 and 4 are still above cleanup levels. DEC has requested further sampling to include VOCs and PAHs (in the stockpiles) to eliminate them as contaminants of concern. |
Dawn Wilburn |
| 3/1/2024 |
Document, Report, or Work plan Review - other |
Sent RP comments for "2023 Monitoring Well Installation, Groundwater Monitoring, and Stockpile Monitoring Report," dated February 6, 2024. Requested a revised report be submitted. |
Dawn Wilburn |
| 3/8/2024 |
Site Characterization Report Approved |
Sent RP approval for revised 2023 Groundwater and Stockpile Monitoring Report, dated March 7, 2024. Groundwater samples from monitoring wells MW1-R and MW-5 were collected and analyzed for GRO, DRO, VOCs, and PAHs. All results were either non-detect or below Table C cleanup levels. Stockpiles 3 and 4 were also field screened and soil samples were collected and analyzed for GO, DRO, VOCs and PAHs. All soil sample results from stockpile 3 and the southern portion of stockpile 4 were below cleanup levels. DEC has approved the reuse on site of these soils. The northern portion of stockpile 4 was not sampled due to elevated field screenings. |
Dawn Wilburn |
| 11/7/2024 |
Workplan Requested |
A work plan request letter was sent. |
Dawn Wilburn |
