| Action Date |
Action |
Description |
DEC Staff |
| 3/11/2011 |
Site Added to Database |
A new site has been added to the database |
Mitzi Read |
| 6/6/2014 |
Update or Other Action |
1994 PA/SI - Surface seep water and minor quantities of debris were observed. No areas of stained soil were observed, and no buried drums were located, although a magnetic anomaly was detected near the center of the site. One surface seep water and one soil sample were collected and analyzed; the only reported contaminant was DRO at 199 mg/kg in the soil sample. |
Anna Iverson |
| 6/6/2014 |
Update or Other Action |
1999 RI - During the 1999 RI, three test pits were excavated and sampled to determine whether past storage and disposal activities had created a source of contamination that could leach from the site. 1 soil sample was collected from each excavation. All of the soil samples were analyzed for GRO, DRO, RRO, metals, pesticides, PCBs, VOCs, and SVOCs. Arsenic (4.5 mg/kg soil) was detected at concentrations above the Upper Camp background level, but below the published regional limitation. The detected concentration of beryllium (5.4 mg/kg) was within the background concentrations. Organic vapor monitoring of the excavated soils revealed no volatile organics above ambient conditions. Minor metal debris was observed. One surface seep was samples and analyzed, DRO (0.90 mg/L) was detected below the groundwater cleanup level. |
Anna Iverson |
| 6/12/2014 |
Update or Other Action |
2011 Decision Document - No fuel or hazardous substances were found at concentrations above applicable cleanup levels, Site SS016 requires no further action under state law and will be designated Cleanup Complete. However, the presence of solid waste has been documented at this site. Removal of solid waste at the site would cost an estimated $15 million and is not warranted. ICs will be put in place to document the location and boundaries of the disposal site and limit future activities that could expose buried wastes or cause the potential spread of contaminants, or placement of solid waste in environmentally sensitive areas. |
Anna Iverson |
| 6/12/2014 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 79053 name: Granite Mountain AFS SS016. All pathways are incomplete or De Minimis. |
Anna Iverson |
| 7/18/2014 |
Institutional Control Record Established |
Institutional Controls established and entered into the database. |
Eric Breitenberger |
| 7/18/2014 |
Cleanup Complete Determination Issued |
The Granite Mountain Decision Document applies institutional controls to this site, restricting excavation or movement of solid waste. ICs are documented in the 611th CES Land Use Control Management Plan.
The Decision Document was approved by DEC on January 10, 2011. |
Eric Breitenberger |
| 5/18/2023 |
Document, Report, or Work plan Review - other |
DEC provided comments for the Draft Final Work Plan, Long Term Management at Granite Mountain Radio Relay Station, Alaska Dated May 2023. The Work Plan presents the approach and procedures for long-term management (LTM) at the Granite Mountain Radio Relay Station. The purpose of the LTM project is to conduct institutional control (IC) inspections, a landfill cover inspection at Site OT001, and sign maintenance, as needed, for the following sites to maintain compliance with U.S. Air Force (USAF) and regulatory requirements: DA020, DA021, DP009, DP010, LF002, OT001, SS016, SS017 and SS019. |
Dennis Shepard |
| 8/15/2023 |
Document, Report, or Work plan Review - other |
DEC provided approval for the Final Work Plan, Long Term Management at Granite Mountain Radio Relay Station, Alaska Dated June 2023. The work plan presents the approach and procedures for long-term management (LTM) at the Granite Mountain Radio Relay Station. The purpose of this LTM project is to conduct institutional control (IC) inspections, a landfill cover inspection at Site OT001, and sign maintenance, as needed, for the following sites to maintain compliance with U.S. Air Force (USAF) and regulatory requirements: DA020, DA021, DP009, DP010, LF002, OT001, SS016, SS017 and SS019. |
Dennis Shepard |
| 3/15/2024 |
Long Term Monitoring Workplan or Report Review |
DEC provided comments for the 2023 Long-Term Management Report Granite Mountain Radio Relay Station Sites DA020, DA021, DP009, LF002, OT001, SS016, SS017, and SS019 (dated February 2024). Visual inspections were conducted at the Lower Camp Area sites (DA021 and DP010) on July 5, 2023 and at Upper Camp Area sites (DA020, DP009, LF002, OT001, SS016, SS017, and SS019) on September 16, 2023. Landfill caps and other surface coverings were found to be in good condition. Institutional Control (IC) signage was inspected and signs were repaired and/or replaced as needed with the exception of site DA021 which was recommended for repairs at the next LTM inspection in 2028. |
Brian Watts |
| 3/19/2024 |
Institutional Control Update |
DNR-SAIL added as affiliate (Office of Primary Responsibility). |
Jennifer McGrath |
| 7/5/2024 |
Long Term Monitoring Workplan or Report Review |
DEC provided responses to comments for the 2023 Long-Term Management Report Granite Mountain Radio Relay Station Sites DA020, DA021, DP009, LF002, OT001, SS016, SS017, and SS019 (dated May 2024). The report describes long-term management activities completed July 5 and September 16, 2023. All comments were accepted, pending a final comment backcheck to the requested final report. |
Brian Watts |
| 8/20/2024 |
Long Term Monitoring Workplan or Report Review |
DEC provided approval for the Final 2023 Long-Term Management Report Granite Mountain Radio Relay Station Sites DA020, DA021, DP009, LF002, OT001, SS016, SS017, and SS019 (dated August 2024) to the U.S. Air Force. Activities consisted of a visual inspection, sign repair or replacement, and photo documentation of each site. The only institutional control/land-use control recommendation was to install an institutional control sign at DA021 during the long-term monitoring work planned for 2028. |
Erica Blake |
