| Action Date |
Action |
Description |
DEC Staff |
| 3/21/1994 |
Site Characterization Report Approved |
(Old R:Base Action Code = RI - Remedial Investigation). Received "Site Assessment Murphy Dome LRRS". Report details remedial investigation and contains risk assessment for all sites at Murphy Dome. Review conducted for RI and initial comments submitted via phone conversation. |
Laura Noland |
| 3/21/1994 |
Update or Other Action |
Received "Site Assessment Murphy Dome LRRS". Report contains human health and ecological risk assessment for designated sites at Murphy Dome. Report concludes that the sites do not pose any health risk. |
Laura Noland |
| 4/21/1994 |
Site Added to Database |
File# 100.38.040 Murphy Dome LRRS. DRO. |
Laura Noland |
| 4/25/1994 |
Site Characterization Report Approved |
(Old R:Base Action Code = SI - Site Investigation). Received and reviewed "Final Site Characteriazation Technical Memorandaum Site Assessment Murphy Dome LRRS, Alaska" which provides sample results for all study sites at the facility. |
Laura Noland |
| 5/27/1994 |
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 contaminated site. |
Jeff Peterson |
| 7/29/1994 |
Meeting or Teleconference Held |
(Old R:Base Action Code = RI - Remedial Investigation). Attended meeting where Air Force and contractor presented remedial investigation work plan, plans for community relations, and management action plan. Public meeting planned for 9/94. |
Laura Noland |
| 8/5/1994 |
Update or Other Action |
(Old R:Base Action Code = RI - Remedial Investigation). Reviewed "Draft Work Plan, Remedial Investigation/Feasibility Study dated July 1994" and sent comments and requested revised work plan. |
Laura Noland |
| 10/17/1994 |
Update or Other Action |
ADEC submitted comments for Human Health and Ecological Risk Assessment for Murphy Dome LRRS and Fort Yukon LRRS report dated 2/94. ADEC determined that risk assessment was not done according to EPA or state guidance and does not address future risk at sites. |
Laura Noland |
| 3/24/1997 |
Update or Other Action |
Site updated by Shannon and Wilson, based on the Air Force Relative Risk Evaluation Worksheet dated 8/23/95. |
S&W |
| 6/3/2005 |
GIS Position Updated |
Updated the latitude and longitude of the landfill location. |
Colin Craven |
| 6/3/2005 |
Update or Other Action |
Site visit of Murphy Dome IRP sites by Craven and Jaynes. Vegetative cover improved since Remedial Investigation photographs in 1993. No apparent erosion of landfill cover. |
Colin Craven |
| 3/20/2008 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed. |
Colin Craven |
| 4/11/2011 |
Document, Report, or Work plan Review - other |
Contaminated sites staff reviewed and sent comments on a draft Proposed Plan that presents final proposed remedial alternatives for five Installation Restoration Program sites at the Murphy Dome Long Range Radar Station. |
Tamar Stephens |
| 3/20/2013 |
CERCLA ROD Approved |
DEC and the Air Force signed the ROD for this site. Remedial Investigation results did not find contaminants of concern at concentrations that pose an unacceptable risk to human health or the environment. However, becuase the contents of the landfill were not characterized and it is assumed that hazardous materials were disposed of in the landfill, institutional controls will be developed and maintained to document the location of the site, the need to maintain the soil cap over the buried wastes, and to limit future land use. Signs will be placed around the perimeter of the landfill. The Air Force will inspect the landfill cap and signs annually, until DEC and the Air Force agree to modify the schedule. The Air Force will require dig permits for any activities that could breach the landfill cover and will avoid ground disturbing activities at the site. The land use controls/institutional controls will be recorded in the USAF Real Property Records, a Notice of Environmental Contamination will be recorded in the State land records, and the site will be incorporated into the 611 Air Support Group Land Use Control Management Plan. |
John Halverson |
| 2/23/2015 |
Institutional Control Update |
On February 10, 2015, DEC received a work plan for field and reporting activities associated with institutional control (IC) inspection at LF003. DEC approves the work plan. This activity was listed in the DSMOA Joint Execution Plan as CERCLA - Long-Term Monitoring. |
Joy Whitsel |
| 12/15/2015 |
Institutional Control Periodic Reporting |
Approved report of IC inspection performed on 26 June 2015. During the site inspections, the area surrounding the site was observed to be accessed by people for recreational purposes, and there was evidence of moose (droppings) using the site and surrounding area. Signs were posted at the site in 2014 to warn the public of potential risks associated with using the area. All four signs were present and in their original location. The following recommendations were included in the inspection report:
- The sign near the helipad at the entrance of the dirt road for access to Site LF003 is illegible and should be replaced.
- The debris that was found on Air Force property outside the boundary of LF003, presents a potential hazard to recreational users of the area. The Air Force may consider removal of debris for public safety. |
Joy Whitsel |
| 2/2/2017 |
Institutional Control Periodic Reporting |
DEC approved the draft report that described the 2016 institutional control and landfill cap inspection activities associated with the Environmental Long Term Management Program at Landfill No. 1, Site LF003. |
Joy Whitsel |
| 9/9/2019 |
Institutional Control Periodic Reporting |
ADEC reviewed the “Draft First Five-Year Review Murphy Dome Long Range Radar Station Murphy Dome, Alaska” dated July 2019. The five year review documents evaluation of the remedies implemented at SS002 and LF003, and makes recommendations to replace and add additional signage; reassess site boundary to encompass the full extent of debris/waste identified; update USAF Real Property Records and file an “Environmental Notice of Contamination” in the State land records to ensure protectiveness of those remedies Comments are enclosed. |
Rachael Petraeus |
| 11/12/2019 |
Document, Report, or Work plan Review - other |
DEC accepted RTCs for Draft FYR. An Environmental Notice of Contamination will be filed before the FYR is finalized. |
Tim Sharp |
| 3/5/2020 |
Update or Other Action |
DEC approved Final First FYR dated December 2019. All comments were adequately incorporated into the document and a Notice of Environmental Contamination was recorded as requested. |
Tim Sharp |
| 2/26/2021 |
Update or Other Action |
DEC sent comments on the Murphy Dome RAO/ICLUC Draft Report. Cover for LF003 is in good condition, while soil staining and distressed vegetation is evident at SS007. The Remedial Investigation currently underway may provide more insight to soil and vegetation effects. |
Tim Sharp |
| 4/21/2021 |
Institutional Control Update |
DEC Approved the Final 2020 RAO ICLUC Report. LF003 shows minor erosion, but not enough to warrant a response at this time. Discolored soil and vegetation was observed at SS007. Further investigations will continue in the future. |
Tim Sharp |
| 4/26/2021 |
Document, Report, or Work plan Review - other |
DEC sent comments on the Draft LTM Report. Comments generally asked for incorporation of information from the 2020 RAO/ICLUC Report that was approved earlier in the month. The Supplemental Investigation Report should be arriving around Mid-May, which will give a better idea of the characterization and contaminants present at the site. |
Tim Sharp |
| 7/12/2021 |
Document, Report, or Work plan Review - other |
DEC Approved the Final LTM WP for SS007 and LF003. Recommendations for future work beyond signage repair and IC inspections were not incorporated, but are expected to be taken into consideration under subsequent contracts. |
Tim Sharp |
| 3/9/2022 |
Document, Report, or Work plan Review - other |
DEC sent comments on the Draft Murphy Dome Long Term Monitoring Report for SS007 and LF003. The report detailed Institutional Control/Land Use Control (IC/LUC) inspections, landfill cap inspections, and sign maintenance. DEC commented on the observation of discolored or stressed vegetation and petroleum odor at SS007. Further characterization of this area may be necessary. |
Tim Sharp |
| 5/13/2022 |
Document, Report, or Work plan Review - other |
DEC Approved the Final 2021 IC/LUC LTM Report dated May 2022. All comments were incorporated appropriately to the report. |
Tim Sharp |
| 3/8/2023 |
Document, Report, or Work plan Review - other |
DEC reviewed and provided comments for the Draft Final Long-Term Management Report Murphy Dome Long Range Radar Site, dated October 2022.The report describes the long term management activities conducted during the fall of 2022 for the Landfill Number 1 (LF003) and Waste Acumulation Area Number 1 and Bulk Fuel Storage Area (SS007) sites at the Murphy Dome Long Range Radar site located in Fairbanks, Alaska. Inspections of signs and site conditions were conducted at both sites along with a landfill inspection at LF003. Continued annual inspections were recommended for both LF003 and SS007. Additionally, based on findings from the 2020 remedial investigation, the expansion of site boundaries for SS007 was reccomended. |
Ginna Quesada |
| 8/1/2023 |
Document, Report, or Work plan Review - other |
DEC approved the Final Long-Term Management Report Murphy Dome Long Range Radar Site, dated July 2023. |
Ginna Quesada |
| 11/7/2023 |
Document, Report, or Work plan Review - other |
DEC provided responses to comments regarding the redline Final Preliminary Assessment Report for Aqueous Film-Forming Foam Areas Murphy Dome Long Range Radar Site, Alaska, dated October 2023. |
Ginna Quesada |
| 11/30/2023 |
Document, Report, or Work plan Review - other |
DEC reviewed and approved the Final Preliminary Assessment Report for Aqueous Film-Forming Foam Areas Murphy Dome Long Range Radar Site, Alaska, dated November 2023. |
Ginna Quesada |
| 12/13/2023 |
Document, Report, or Work plan Review - other |
DEC submitted comments regarding the Draft Final 2023 Long-Term Management Report Murphy Dome Long Range Radar Site Sites LF003 and SS077, dated November 2023. |
Ginna Quesada |
| 3/8/2024 |
Document, Report, or Work plan Review - other |
DEC approved the Final 2023 Long-Term Management Report Murphy Dome Long Range Radar Site Sites LF003 and SS077, dated March 2024. |
Ginna Quesada |
