Action Date |
Action |
Description |
DEC Staff |
9/30/1992 |
Interim Removal Action Approved |
8,000 gallons of fuel will be moved to temporary storage. Remaining 12,000 gallons will be consumed prior to 11/30/92. |
Former Staff |
10/20/1992 |
Update or Other Action |
(Old R:Base Action Code = NOR - Notice of Release Letter (LUST)). Sent NOR letter to Denali National Park after ADEC informed of Failed TTT. |
Don Gibler |
10/29/1992 |
Site Added to Database |
Heating oil. |
Former Staff |
3/19/1993 |
Update or Other Action |
(Old R:Base Action Code = RAPR - Remedial Action Plan Review (CS)). Gave verbal approval to Joe Durrenberger at 11:55 AM this date. |
Kalu Kalu |
2/14/1994 |
Update or Other Action |
(Old R:Base Action Code = RPL2 - Site Information Request Letter). Sent PRP-CS Database Notification Letter to RP requesting update and more environmental information concerning the contaminated site. RP responded with completed information form. |
Jeff Peterson |
10/5/1994 |
Site Ranked Using the AHRM |
Initial ranking. |
Former Staff |
8/24/2001 |
Update or Other Action |
Work plan for site investigation received. |
Jeff Conn |
1/2/2002 |
Update or Other Action |
Site Assessment received. |
Jeff Conn |
5/23/2002 |
Update or Other Action |
Site Assessment workplan received. |
Jeff Conn |
6/7/2002 |
Site Characterization Workplan Approved |
|
Jeff Conn |
4/29/2003 |
Meeting or Teleconference Held |
Met with NPS staff to discuss Summer 2003 actions. |
Larry Johnson |
6/6/2003 |
Long Term Monitoring Established |
Long-term monitoring begins. |
Larry Johnson |
6/6/2003 |
Site Characterization Workplan Approved |
Approved workplan for groundwater well installation and monitoring. |
Larry Johnson |
8/20/2004 |
Update or Other Action |
Groundwater monitoring report approved. |
Anne Marie Palmieri |
1/26/2005 |
Update or Other Action |
Groundwater monitoring report approved. Free product recovery continues in MW1 and MW2. Staff sent comments to NPS staff regarding report and continued monitoring efforts. |
Anne Marie Palmieri |
1/26/2005 |
Site Ranked Using the AHRM |
Site reranked based upon more complete information. |
Anne Marie Palmieri |
10/5/2005 |
Update or Other Action |
Groundwater monitoring report reviewed and approved. Contamination still present in MW-4 at 6.4 mg/l DRO and free product in MW-1 and MW-2. Need for future actions will be discussed with NPS. |
Anne Marie Palmieri |
6/20/2008 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed. |
Janice Wiegers |
8/18/2008 |
Update or Other Action |
Received Building 51/54 Groundwater Monitoring 2008 Report |
Melody Debenham |
5/26/2009 |
Update or Other Action |
Approved work plan for groundwater monitoring at Building 54 and Building 51 |
Melody Debenham |
8/19/2009 |
Spill Transferred from Prevention Preparedness and Response Program |
Spill transfered by PERP staff Wesley Ghormley. Spill no. 07309921304; spill date 8/1/07; PERP file no. 220.02.001; substance = diesel; quantity = ~20 gallons; source description: 100-gallon heating oil tank. On August 1, 2007 a 100 gallon HOT was being loaded onto a truck with a forklift when it fell releasing ~20 gallons of diesel onto the ground. The report stated that the forklift operator assumed the tank was empty. Tammy Scholton, environmental staff with the National Park Service, reported that this site has been previously listed as a contaminated site with ADEC. Wes Ghormley and John Ebel with ADEC PERP visited the site on May 13, 2008 to investigate and document the spill. A final report was presented to ADEC along with an approval to transport request. Thirty tons of contaminated soil were transported to OIT for thermal remediation on 09/13/2008. |
Mitzi Read |
11/18/2009 |
Update or Other Action |
Received groundwater monitoring report for Building 54 and Building 51 |
Melody Debenham |
5/13/2010 |
Site Characterization Workplan Approved |
Approved the final Headquarters Buildings 51 and 54 2010 Groundwater Monitoring Work Plan. Ongoing investigation and monitoring activities proposed in this work plan include groundwater sampling and conducting a preliminary assessment of vapor intrusion potential at Building 51. |
Melody Debenham |
12/20/2010 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 72582 Heating oil spills from underground tanks. |
Melody Debenham |
3/24/2011 |
Site Characterization Report Approved |
Approved the 2010 groundwater monitoring report for Buildings 51 and 54. Groundwater results show DRO in MW-1 at 4.17 mg/L and MW-2 at 2.24 mg/L. DRO results at MW-4 and MW-5 are below the cleanup level. |
Melody Debenham |
3/24/2011 |
Conceptual Site Model Submitted |
The 2010 groundwater monitoring report for Buildings 51 and 54 included a conceptual site model. |
Melody Debenham |
5/23/2012 |
Site Visit |
Performed a site visit at the C-Camp Auto Shop site and the C Camp Emergency Services/Fire Management Building site in Denali National Park & Preserve. National Park Service (NPS) staff gave us a tour of the C-Camp sites, sites in the Headquarters area and the Hotel Powerhouse site. At the C-Camp site we observed drilling and soil sampling for the installation of a monitoring well. |
Melody Debenham |
6/25/2014 |
Document, Report, or Work plan Review - other |
Approved letter work plan to decommission monitoring wells MW-1 thru MW-9 in the Denali Headquarters area. |
Melody Debenham |
9/2/2014 |
Document, Report, or Work plan Review - other |
Approved letter report documenting decommissioning MW-1 thru MW-9 at the Building 51, Building 54, and Building 111 headquarters sites. MW-3 could not be located for decommissioning. MW-3 is assumed to be under 3 feet of fill at the RV pad that was constructed in 2009. |
Melody Debenham |
9/30/2014 |
Potentially Responsible Party/State Interest Letter |
Potentially responsible party letter sent to the National Park Service. |
Melody Debenham |
8/31/2017 |
Cleanup Complete Determination Issued |
|
Gretchen Caudill |
8/31/2017 |
Institutional Control Record Established |
Institutional Controls established and entered into the database. |
Gretchen Caudill |
5/30/2018 |
Institutional Control Compliance Review |
IC compliance review conducted. Staff changed from Gretchen Caudill to IC Unit. Closure/IC Details updated to reflect the 2017 Decision Document. Reminder system set to follow-up every three years. |
Kristin Thompson |
8/13/2024 |
Institutional Control Compliance Review |
IC compliance review completed on this date. An IC reminder letter was e-mailed to the landowner. The next review will be in five years’ time. |
Gaige Robinson |