Action Date |
Action |
Description |
DEC Staff |
1/1/1990 |
Site Added to Database |
CERCLIS site. |
Former Staff |
2/8/1993 |
Site Ranked Using the AHRM |
Initial ranking. |
Former Staff |
2/23/1993 |
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 corrections on ADEC site report. |
Jeff Peterson |
3/1/1995 |
Update or Other Action |
DEC central office staff conducted PA under PASI Cooperative Agreement with EPA. Only the State of Alaska parcels at the site were evaluated. |
Bill Janes |
4/21/2000 |
Site Ranked Using the AHRM |
Re-ranked site: Changed GW Usage Value to 0.8 from 0.4, changed GW Exposure Index Value to 1 from 0.4, and changed SW Usage Value from 0.4 to 0.2. |
Eileen Olson |
3/18/2008 |
Exposure Tracking Model On Hold |
This is a place holder for site wide information, specific areas of concern at this facility have been entered as separate sites. |
Kim DeRuyter |
8/6/2010 |
Site Characterization Workplan Approved |
2010 Site Investigation Work Plan has been approved for characterization of the Summit facility. |
James Ward |
8/20/2010 |
Site Visit |
Staff traveled to Summit for observation of UVOST screening and to collaborate with contractors on screening locations. |
James Ward |
9/6/2011 |
Site Characterization Workplan Approved |
CS Staff approved the 2011 Addendum to Work Plan. The Addendum included drilling of nine additional wells and collection of groundwater samples. |
James Ward |
8/23/2012 |
Document, Report, or Work plan Review - other |
Staff sent comments to FAA regarding the May 2012 Draft Site Investigation Report. |
James Ward |
1/31/2013 |
Document, Report, or Work plan Review - other |
ADEC replied to the Response to Comments (RTC) provided by the FAA following initial ADEC comments. A final draft of the SI report was received by ADEC on 3/28/2014. |
Fred Vreeman |
8/6/2014 |
Site Characterization Report Approved |
Approved the Final Site Investigation Report presenting the results of investigation and characterization activities completed at 21 areas of concern in 2010 and 2011. Petroleum contaminants were detected in the groundwater above the cleanup level at 10 of the areas of concern, and additional groundwater monitoring and evaluation is recommended to determine if the shallow groundwater encountered is pore water infiltration accumulating in the monitoring wells. Additional investigation is recommended at one area of concern to address soil contamination associated with the use of chlorinated herbicides, and the remaining 10 areas of concern are recommended for cleanup complete status. |
Keri DePalma |
8/7/2014 |
Update or Other Action |
Staff changed from Fred Vreeman to Keri DePalma. |
Keri DePalma |
9/30/2014 |
Site Characterization Workplan Approved |
Debenham/DePalma reviewed and approved work plan: Final Work Plan Federal Aviation Administration Follow-On Site Investigation, FAA Station Summit, Alaska. Dated September 12, 2014. |
Keri DePalma |
8/27/2015 |
Update or Other Action |
Discussed site status with FAA project manager. Anticipate draft report in September or October of 2015. |
Joy Whitsel |
5/4/2016 |
Site Characterization Report Approved |
DEC approved Follow-on Site Investigation Report for FAA Summit Station. There were two primary objectives for the follow-on site investigation activities: 1) to further delineate the extent of petroleum contamination at the Summit FAA Station and 2) to determine the nature of the subsurface water at the site. The report concluded that the subsurface water monitored at the Summit FAA Station is not expected to transport any contaminants to nearby surface water or drinking water sources which have been located a minimum of approximately 5 miles away. |
Joy Whitsel |
1/20/2017 |
Update or Other Action |
The Area of Concern (AOC)described as the former pole-mounted transformer near former housing buildings 110 and 600 was sampled for PCBs in soil in 2010. No PCBs were detected, and ADEC considers this AOC non-qualifying as a contaminated site. Based on the site investigation observations and sample results it appears that the former pole-mounted transformer is not causing risk to human health or the environment and no further action needs to be conducted at former pole-mounted transformer sites |
Joy Whitsel |
2/6/2017 |
Meeting or Teleconference Held |
DEC met with FAA and contractors to discuss steps necessary for closure. For Former Housing North (HazardID 26620) HRC results will be accepted. For areas of concern (AOCs) where contamination of groundwater or infiltrating subsurface water is present, DEC agrees to review groundwater modeling that proposes to demonstrate that the contamination plume is at equilibrium. Calculation of cumulative risk will be based on source area and assessed on a site by site basis. Regarding establishment of institutional controls (ICSs) at the site, DEC is concerned that the landowner Alaska Dept of Transportation (ADOT) lacks an existing mechanism for tracking and maintaining ICs. Future coordination between the FAA, ADEC and the ADOT will be necessary have to successfully implement ICs restricting groundwater usage. |
Joy Whitsel |
3/19/2021 |
Document, Report, or Work plan Review - other |
Received Draft Summit FAA Station Long Term Monitoring Report dated February 2021. DEC comments sent March 4, 2021. RTC received March 12, 2021. Approval sent 5/27/21. |
Shonda Oderkirk |