| Action Date |
Action |
Description |
DEC Staff |
| 9/2/1995 |
Update or Other Action |
(Old R:Base Action Code = RI - Remedial Investigation). Action date used is the date of the Air Force Relative Risk Evaluation Worksheet, which indicates the site is in the RI phase. |
Former Staff |
| 3/3/1997 |
Site Added to Database |
Site added by Shannon and Wilson. |
S&W |
| 2/6/2003 |
Site Number Identifier Changed |
Changed the Region from 36 to 31 and the Sequence Number from 06 to 01. |
Former Staff |
| 1/14/2005 |
Update or Other Action |
Staff approved a workplan for soil sampling at the Point Lonely Long Range Radar Station during the demolition and removal of beach fuel tanks, pump house, tank berm, and associated fuel lines |
Emily Youcha |
| 6/1/2005 |
Site Characterization Workplan Approved |
Staff approved a remedial investigation/feasibility study workplan for the site. Work will be conducted in July/August 2005. Samples will be collected for DRO/RRO, GRO, BTEX, and PAH. |
Emily Youcha |
| 6/1/2005 |
Site Ranked Using the AHRM |
Initial site ranking. |
Emily Youcha |
| 7/25/2005 |
Update or Other Action |
Staff attended a site visit to Pt Lonely AFS on July 18 with BLM representatives. |
Emily Youcha |
| 7/29/2005 |
Meeting or Teleconference Held |
Contaminated Sites staff is working with the Air Force on creating a template for ecological and human health risk assessments covering six sites across the North Slope, including this site. The Air Force determined it needs to conduct base-line risk assessments at these sites prior to making cleanup decisions on them. Developing a template is an effort to make the process more efficient. |
Emily Youcha |
| 12/8/2005 |
Meeting or Teleconference Held |
Staff attended the Restoration Advisory Board meeting in Barrow and provided a summary of the current activites at the site. |
Emily Youcha |
| 3/21/2006 |
Update or Other Action |
Staff received a copy of the 2005 draft RI/FS. Staff participated in a meeting with the BLM and the Air Force on February 17 to discuss the status of Pt. Lonely and a potential transfer of the Air Force Buildings to the North Slope Borough. |
Emily Youcha |
| 5/15/2006 |
Update or Other Action |
Staff reviewed the RI/FS for SS010 Diesel Tank. Low-level petroleum contamination was found in the soil, below Method Two Soil cleanup levels. The Air Force is proposing No Further Action. |
Emily Youcha |
| 5/26/2006 |
Update or Other Action |
Contaminated Sites staff recently obtained term contractor review of a draft Air Force North Slope Risk Assessment Work Plan (RAWP). Comments were received from the term contractor, and a comment review teleconference was held with the term contractor risk assessor on 5/10/06. The RAWP seeks to develop risk based cleanup levels based on exposure pathways for categories of sites (e.g., garage sites) at Air Force radar stations in the north slope region. The work plan is generally well written, but some of the key items that need clarification are how data gaps will be handled at individual sites; determination of background levels for organics and inorganics; how it will be determined whether a large water body is potentially affected by a site; and how toxicity will be determined for trichloroethylene. |
Emily Youcha |
| 7/11/2006 |
Meeting or Teleconference Held |
Staff performed a site visit to Pt. Lonely with the North Slope Risk Assessment team. Sites SS03 and SS02 are included as template sites, but nearly all sites at Pt Lonely were visited. The former location of the pumphouse was identified and has not yet eroded into the ocean. The coast continues to erode, particularly in the vicinity of the former Sewage Outfall site and little beach remains for vehicle or foot travel on the beach in that area. |
Emily Youcha |
| 8/18/2006 |
Meeting or Teleconference Held |
Contaminated Sites staff met with the Air Force and the Bureau of Land Management (BLM) to discuss the upcoming cleanup at Point Lonely Air Force Station. This site is located in a right-of-way on BLM property and the Air Force has to meet several environmental requirements before relinquishing the property. The Air Force requested to re-open a permitted landfill at Point Lonely for one time use to deposit demolition debris and low-level petroleum-contaminated soil. BLM is hesitant to approve it because landfills built on BLM property are not consistent with their policy. |
Emily Youcha |
| 7/10/2007 |
Exposure Tracking Model Ranking |
Intitial Ranking Complete for Source Area: 73899 (Autogenerated Action) |
|
| 12/11/2007 |
Risk Assessment Report Approved |
ADEC received the Final Risk Evaluation Report – Alaska North Slope Radar Installation Sites on November 6, 2007. This report meets the requirements of the ADEC Contaminated Sites Program Risk Assessment Procedures Manual, adopted by reference in 18 AAC 75.340. An approval letter was sent to Dave Cook, Program Manager HQ PACAF/A7NR, on December 10, 2007
This project identified categories of sites that are common on remote Air Force installations in the North Slope region of Alaska and developed conceptual site models and human health and ecological risk based screening levels for four of these categories: garage sites, fuel storage sites, non-fuel storage sites, and transformer sites. The project developed templates for conducting human health and ecological risk evaluations for these categories and performed a risk evaluation as a test case for one example of each type of site. The final report contains guidance on applying the process to other North Slope region sites. It may be used on a site-specific basis as a tool to assist in assessing potential risks posed by North Slope Air Force installation sites.
|
Tamar Stephens |
| 12/13/2007 |
Public Notice |
Public meeting was held in Barrow to present Proposed Plan. Public comment period: 12/13/2007 - 1/11/2008. DEC contaminated sites staff attended. |
Tamar Stephens |
| 5/2/2008 |
Document, Report, or Work plan Review - other |
Contaminated sites staff reviewed and sent comments on a draft decision document. |
Tamar Stephens |
| 8/29/2008 |
CERCLA ROD Approved |
Decision document signed. Decision document was signed by Colonel Brent Johnson, USAF, on 8/27/2008 and by DEC Environmental Program Manager John Halverson on 8/29/2008. No contaminants remain above the 18 AAC 75.341 method two arctic zone soil cleanup levels. Therefore the remedy is no further action and cleanup is considered complete at this site. (This is not a CERCLA site; however the Air Force is following the CERCLA process and this is the most representative action available on the CS database.) |
Tamar Stephens |
| 8/29/2008 |
Cleanup Level(s) Approved |
Cleanup levels were approved with signing of the Decision Document on 8/29/2008. Cleanup levels are the Method Two Arctic Zone cleanup levels from 18 AAC 75.341 Tables B1 and B2 for GRO, DRO, RRO, BTEX compounds, and PAHs. |
Tamar Stephens |
| 8/29/2008 |
Cleanup Complete Determination Issued |
A cleanup complete determination was issued by signing the Decision Document on 8/29/2008. Cleanup levels are the Method Two Arctic Zone cleanup levels from 18 AAC 75.341 Tables B1 and B2. DRO remains at this site at a maximum detection of 2,510 mg/kg, which is below the Method Two cleanup level of 12,500 mg/kg. No other chemicals of concern were detected at this site above a screening level of one-tenth of the cleanup levels. |
Tamar Stephens |
