| Action Date |
Action |
Description |
DEC Staff |
| 3/14/1986 |
Update or Other Action |
Environmental Assessment, Defense Environmental Restoration Account (dated March 14, 1986). |
Former Staff |
| 1/15/1987 |
Update or Other Action |
Defense Environmental Restoration Program (DERP) Inventory Project Report (January 1987). |
Former Staff |
| 7/13/1994 |
CERCLA PA |
Preliminary Assessment (dated January 1994) prepared by CH2M Hill; received on July 13, 1994.
While not listed on the NPL, Driftwood Bay RRS must follow CERCLA process per E.O. 12580 [e.g. CERCLA Sections 104(a), (b), and (c)(4), 113(k), 117(a), and (c), 119, and 121) with respect to releases or threatened releases where either the release is on or the sole source of the release is from any facility or vessel under the jurisdiction, custody, or control of their departments. These functions must be exercised consistent with CERCLA Section 120 Federal Facilities.
State laws. -- State laws concerning removal and remedial action, including State laws regarding enforcement, shall apply to removal and remedial action at facilities owned or operated by a department, agency, or instrumentality of the United States when such facilities are not included on the National Priorities List. The preceding sentence shall not apply to the extent a State law would apply any standard or requirement to such facilities which is more stringent than the standards and requirements applicable to facilities which are not owned or operated by any such department, agency, or instrumentality.].
|
Ray Burger |
| 2/8/1996 |
CERCLA PA |
Final Preliminary Assessment / Site Inspection (dated January 1996) prepared by EMCON; received February 8, 1996.
WP003 (AOC 4) Former Water Supply Pumphouse: A concrete water pumphouse had been located along the access road leading to the composite building. A 6-inch water intake pipe transported water from Snuffy Creek to the pumphouse, which was then pumped to a water cistern approximately 100 feet south of the composite building.
A 550-gallon diesel UST was reported to be on the west side of the pumphouse according to USAF site background information. However, this tank was not found during the 1985 USACE site visit or during the 1991 demolition. During the 1995 site inspection, the pumphouse area was completely covered by boulders and some concrete and scrap metal were observed.
The presence of a 550-gallon diesel tank has not been confirmed during site visits in 1985,
1991, and 1995 Due to site conditions in 1995, no search for the former fuel tank was attempted and a soil sample was not collected. No further investigation is recommended at the site. |
Ray Burger |
| 2/23/1996 |
Update or Other Action |
Final Management Action Plan (MAP) dated February 1996; received February 23, 1996. |
Ray Burger |
| 12/29/1997 |
Update or Other Action |
Management Action Plan (draft dated August 1997; ADEC comment letter dated December 10, 1997; final report dated Decmber 29, 1997). |
Gretchen Pikul |
| 1/9/1998 |
Site Added to Database |
Site added by staff. |
Gretchen Pikul |
| 7/26/2005 |
Update or Other Action |
Preliminary Assessment/Site Investigation Quality Program Plan (Work Plans) for Driftwood Bay RRS (entire installation) and Duncan Canal RRS; draft dated March 2005, ADEC received on March 25; ADEC comment letter on April 29; comment resolution meeting on May 3; Air Force final PA/SI QPP dated June 2005 received on July 26. |
Jeff Norberg |
| 2/17/2006 |
CERCLA SI |
Preliminary Assessment/Site Investigation Report for Driftwood Bay RRS for entire installation; draft dated October 2005 received on October 19; ADEC comment letter on November 23; Air Force response to comments received electronically December 15; ADEC approval letter issued December 19, 2005; Final PA/SI report dated December 2005 received February 17, 2006.
Based on results of this investigation, it is recommended that additional study be performed to
determine the extent of contamination in surface soil in excess of screening criteria at WP003. Due to the slight exceedance of arsenic, it is recommended that site specific background
concentrations be determined as detailed in Section 5.1 and utilized during the potential future
investigation to confirm the exceedances are not consistent with naturally occurring levels. The
extent of lead in surface soil in excess of screening criteria at the burned battery area should also be determined. |
Jeff Norberg |
| 7/21/2006 |
Meeting or Teleconference Held |
Stakeholders met for a 3-day Triad Systematic Planning meeting between July 18 and July 20, 2006 to discuss plans to address residual contamination at the former Driftwood Bay RRS facility. The primary purpose of this meeting was to reach an understanding of data quality objectives for each site at Driftwood Bay for eventual site closure and land transfer. Several sites identified as petroleum only, will be investigated in accordance with Alaska State regulations. The investigation and closure for remaining sites will comply with the Comprehensive Environmental Response, Compensation, and Liability Act. |
Jeff Norberg |
| 7/26/2007 |
Update or Other Action |
DEC received a copy of a letter from EPA to the Air Force documenting EPA';s decision of No Further Remedial Action Planned under EPA's Superfund Program. This designation does not relieve the Air Force from complying with appropriate State of Alaska regulations. The facility will remain on the Federal Agency Hazardous Waste Compliance Docket, but will be listed for no further action under the EPA Superfund Program. |
John Halverson |
| 7/16/2008 |
Exposure Tracking Model On Hold |
Waiting on pending characterization data. |
Jeff Brownlee |
| 12/19/2008 |
Meeting or Teleconference Held |
Contaminated Sites staff participated in a comment meeting on the draft risk assessment for the former Driftwood Bay Radio Relay Station. There is ecological risk for various species at three sites from lead and Polycyclic Aromatic Hydrocarbons (PAHs) well over acceptable state risk levels. One site is a landfill where ash was sampled from a test pit. One site is a former POL tank farm near the coast and another site is an electronic debris area with elemental lead from battery carcasses on the ground surface |
Jeff Brownlee |
| 5/8/2009 |
Risk Assessment Report Approved |
Contaminated Sites staff reviewed and commented on revised draft documents for the Driftwood Bay former Radio Relay Station on Unalaska Island about 15 miles from Dutch Harbor. The Air Force 611th has performed a remedial investigation/site characterization and risk assessment for the site. Risk associated with lead in soil at two sites is over state human health and ecological standards. The site will require institutional controls for a landfill and petroleum contamination in soil and groundwater. Future remedial action and further investigation is anticipated for the site |
Jeff Brownlee |
| 5/8/2009 |
Site Characterization Report Approved |
Contaminated Sites staff reviewed and commented on revised draft documents for the Driftwood Bay former Radio Relay Station on Unalaska Island about 15 miles from Dutch Harbor. The Air Force 611th has performed a remedial investigation/site characterization and risk assessment for the site. Risk associated with lead in soil at two sites is over state human health and ecological standards. The site will require institutional controls for a landfill and petroleum contamination in soil and groundwater. Future remedial action and further investigation is anticipated for the site |
Jeff Brownlee |
| 9/11/2009 |
Update or Other Action |
In 1991, the US Army Corps of Engineers, under the Formerly Used Defense Site (FUDS) Program, contracted with Anderson Excavating and Wrecking Company to demolish buildings and cleanup solid wastes at the site. The composite building, POL pump building, airport storage building, ammunition building, water pump house, lighting vault, four billboard antennas and other wastes were demolished and buried in an on-site landfill south of the former composite building. Concrete foundations were left in place. The Corps hired Environmental Management to remove the above and underground fuel storage tanks and pipelines, which were cut up and disposed in the on-site landfill. A total of 350 55-gallon drums were removed. Fuel contaminated soil was excavated, thermally treated and disposed of in the landfill. A 55-gallon drum of PCB and a drum containing lead acid batteries were removed from the site for proper disposal. Subsequently, it was determined that the Air Force still controls the site as the public land withdrawl has not been relinquished. Further cleanup work on the site is not eligible under the FUDS Program.
DEC and the Corps have signed a Containerized / Hazardous, Toxic or Radiologiacl Waste (CON/HTRW) Project Closeout Report (Aug. 2009) documenting no additional CON/HTRW work is eligible under the FUDS Program. The USAF is responsible for remaining environmental restoration work at the site. |
John Halverson |
| 11/6/2009 |
Meeting or Teleconference Held |
Contaminated sites staff participated in an update meeting with project managers from the USAF 611th and their contractor. Discussion included the proposed timeline and scope of work for the 2010 and 2011 field seasons for installing monitoring wells and institutional controls at 4 POL sites and the status of 8 other sites (5 are proposed to be DEC-determined as cleanup complete with no further action; 3 sites are being addressed under CERCLA). |
Curtis Dunkin |
| 2/8/2010 |
Update or Other Action |
A cleanup complete w/o IC's determination was issued for several other Driftwood Bay sites. OT001-USTs and Antennas, SS010 - Water Supply Pump House and Site WP003 - Waste Pit - are recommended for cleanup complete with Institutional Controls (ICs).
ICs are proposed on this site for the following reasons: 1) document the location and extent of residual contamination, 2) limit land use solely to very limited/remote recreational use (as outlined in the risk assessment), and 3) to document the need to properly manage residual contamination in accordance with applicable regulations.
See site file for additional information. |
Curtis Dunkin |
| 8/8/2011 |
Document, Report, or Work plan Review - other |
Draft Proposed Plan comments.
DA013 has not been previously utilized or documented by ADEC as a reference to the Burned Battery Area. In 2010, ADEC and the AF reconciled the site names and references due to some inconsistencies. ADEC's understanding is that the site is named 'Burned Battery Area' not DA013, and that this is actually a sub-site of FL009, and not WP003 as stated elsewhere in the PP. If DA013 is to be referenced, then please explain what it means (AF naming convention for Disposal Area?) This needs to be reconciled/revised throughout the document.
Page 5
WP003-DRO levels exceed the direct contact risk-based cleanup level for unrestricted use. Is the AF proposing alternative cleanup levels? These need to be clearly stated and explained for all sites. Briefly define cumulative risk.
See site file for additional information. |
Curtis Dunkin |
| 8/25/2011 |
CERCLA Proposed Plan |
Final Proposed Plan for Sites DA013, LF006, and OT001.
Site WP003 - Petroleum, Oil, and Lubricant (POL)
Waste Pit at the Former Composite Building: Site
WP003 POL Waste Pit is a floor drain outfall located approximately 250 feet northeast of the Former Composite Building. Limited investigation performed at this site in 1985, 1995, and 2005 detected POL contaminants above ADEC Method Two criteria. The level of remaining contamination is approximately 12,000 mg/kg DRO and approximately 17,000 mg/ kg RRO. Cumulative risk at the site is below ADEC maximum values. The site-specific risk assessment found no unacceptable risk at Site WP003. Land use will be restricted so that land use remains recreational.
See site file for additional information. |
Curtis Dunkin |
| 10/21/2011 |
Document, Report, or Work plan Review - other |
Additional comments on the Proposed Plan. The Alaska Department of Environmental Conservation's Contaminated Sites program (ADEC) is submitting the attached additional comments on the 2011
Proposed Plan for Driftwood Bay. Although ADEC previously submitted comments to the Air Force and previously approved the draft final Proposed Plan in August, 2011 (which was subsequently distributed for public review at the August 25, 2011 public meeting in Dutch Harbor, AK), ADEC requests that the Air Force address these additional comments. If necessary, we can schedule a comment resolution meeting to resolve any outstanding issues.
Page 5
WP003: It states land use will be restricted so that land use remains recreational. It is not clear how these restrictions/controls will be established and maintained.
See site file for additional information. |
Curtis Dunkin |
| 9/27/2012 |
Document, Report, or Work plan Review - other |
ROD Comments.
1.1.2 ADEC has determined that the DA013 site (also referred to as the Burned Battery Area) was not previously added to the ADEC database as an individual contaminated site. This was likely due to the fact that it was either historically considered and/or misunderstood to be a subsite of OTOOl (similarly to the Electronic Debris Area being included as subsite of LF006 per concurrence
between the Air Force and ADEC in 2010). ADEC currently has 12 individual sites entered into the ADEC database which have all been addressed and accounted for in the 2011 proposed plan and other historical documents.
These sites are: FL009 (cleanup complete), LF006 (active), OTOOl (active), SS002 (active), SS004 (cleanup complete), SS005 (active), SS007 (active), SS008 (cleanup complete), SSOlO (active), SSOl 1 (cleanup complete), TU012 (active), and WP003 (active). ADEC will add the DA013 (BBA) site as an individual site to its database which will result in a total of 13 Driftwood Bay sites; of which the status of 4 are cleanup complete and the other 9 sites are active. Site DAO 13 should be referred to as DA013-BBA throughout the document for clarity.
Document should discuss how the other remaining sites will be addressed (LF006, SS002, SS005, SS007, SSOlO and TU12, and WP003). These should be summarized and discussed in section 1.3.2 as well as other appropriate sections where i.e. petroleum and non-petroleum sites are associated.
See site file for additional information. |
Curtis Dunkin |
| 1/7/2013 |
Document, Report, or Work plan Review - other |
Review of revised redline draft of the Driftwood Bay RRS ROD which is dated July 2012 and was received by ADEC on August 01, 2012. ADEC received the revised redline draft from the Air Force via email on December 12, 2012. ADEC has completed its review of the revised redline draft ROD and is submitting additional comments which are attached with this letter for the Air Force’s review. ADEC previously submitted these comments to the Air Force via email on January 02, 2013. ADEC has determined that all other responses to ADEC’s comments and revision requests to the draft ROD (except those noted in the additional comments attached with this letter) are adequate.
ADEC intends to submit an updated site summary and determination letter to the Air Force as a follow up to ADEC’s February 2010 determination letter. The letter will summarize the following:
1) ADEC’s reconciling of its database to include two sites, SS014-Heavy Equipment Storage Area, and DA013-Burned Battery Area, which ADEC had not previously entered as separate contaminated sites;
2) the Air Force’s request for administrative closure of sites SS005-Former AST at Runway and TU012-Former USTs Near Lighting Vault;
3) and the Air Force’s revised plans to conduct excavation and off-site disposal of contaminated soils at sites WP003- POL Waste Pit, OT001-Antennas and Tanks, OT001-Former Composite Building, and LF006-Electronic Debris Area. ADEC’s previous 2010 determination letter only addressed the petroleum-contaminated sites, two of which were proposed for Cleanup Complete with Institutional Controls however now are scheduled for excavation and offsite disposal.
See site file for additional information. |
Curtis Dunkin |
| 1/27/2015 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 71070 name: auto-generated pm edit Driftwood Bay RRS WP003 |
Debra Caillouet |
| 2/25/2015 |
Meeting or Teleconference Held |
Meeting Minutes.
Project Scope at Driftwood Bay RRS:
WP003 – POL Waste Pit.
-Excavate/dispose offsite of 160 CY of POL-impacted (DRO) soil
- Collect confirmation samples.
Driftwood Bay RRS review comments
Site WP003:
- Ms. Caillouet stated that since sampling was conducted to determine the extent of contamination, and not along the stained areas of the site, in order to get to “clean-up complete,” CAPE should plan that additional excavation will be required.
See site file for additional information. |
Debra Caillouet |
| 5/29/2015 |
Document, Report, or Work plan Review - other |
Remedial Action Work Plan comments.
The plan is deficient in many derails and requires significant revision. A complete revised DRAFT document is required.
Screening results from IA, XRF, PID etc. are not acceptable to determine compliance with
cleanup levels. Analytical samples are required. This is to be resolved throughout the work
plan. ADEC will not consider a cleanup complete, regardless of the volume excavated, unless the
appropriate confirmation samples show the cleanup levels have been met.
Page 1-2 1.2 WP-003 provide source of this alternative cleanup level and ADEC approval for it.
UFP-QAPP Use Intergovernmental Data Quality Task Force Uniform Federal Policy for Quality
Assurance Project Plans Optimized UFP-QAPP Worksheets, March 2012, no comment is provided on the individual work sheets that are removed/revised by this policy. It is expected that the contractor is able to comply.
See site file for additional information. |
Debra Caillouet |
| 7/15/2015 |
Document, Report, or Work plan Review - other |
Comments on the Draft Final Remedial Action Work Plan, Remedy Implementation at the Former Driftwood Bay RRS, May 2015.
Page 4-3 Section 4.2 There is no ROD for WP003 therefore there is no areal extent of the contamination defined in the ROD. Identify the source of your information used to develop the figure.
Page 4-3 Table 4-3 The values shown for DRO and RRO are not the most conservative cleanup levels. Identify the source used to determine the cleanup level(s) for WP003.
See site file for additional information. |
Debra Caillouet |
| 7/24/2015 |
CERCLA Remedial Design/Remedial Action Plan Approved |
Final Remedial Action Work Plan for Remedy Implementation at the Former Driftwood Bay Radio Relay Station, Alaska July 2015 |
Debra Caillouet |
| 4/4/2016 |
Update or Other Action |
Interim 2016 Remedial Action report received.
The RA at WP003 in 2015 resulted in the excavation, containerization, and disposal of 1,097.19
tons of contaminated coil. Confirmation samples collected from the excavation extents indicate
the presence of DRO and RRO at concentrations which exceed SCLs. Therefore, further characterization is required at WP003 to determine the extent of POL contamination. |
Louis Howard |
| 4/19/2016 |
Document, Report, or Work plan Review - other |
On behalf of the Alaska Department of Environmental Conservation (ADEC), I have reviewed the draft-final Interim 2016 Remedial Action Report for DA013, LF006, OT001, and WP003 at Driftwood Bay RRS. ADEC has reviewed and commented on the work plan for follow-on work in 2016 which is based upon this report. ADEC requests the field work interim reports precede the subsequent work plans in the future by at least forty five days. Please finalize this document. |
Louis Howard |
| 4/3/2017 |
Document, Report, or Work plan Review - other |
Comments provided on the draft 2015-16 RA Report.
The text states: “Confirmation samples collected from the excavation extents indicate the presence of DRO and RRO at concentrations that exceed site SCLs and indicate the nature and extent of POL-contaminated soil are much larger than anticipated.”
List the specific SCLs that are exceeded.
See site file for additional information. |
Louis Howard |
| 1/31/2018 |
Update or Other Action |
RAO & LTM report received for review and comment. 17 soil borings advanced at the POL delineation area. Sample locations were selected based off post-excavation sample results from the Interim 2015 Remedial Action Report (USAF, 2016). The results of the POL delineation sampling event indicate that the lateral extent of the POL-impacted soil along the northern boundary of the delineation area has been adequately defined. Only one borehole location (BH-97) contained a DRO concentration that was above site cleanup levels.
Additional step-out boreholes were advanced downgradient of BH-97 based on field screened contaminant concentrations encountered. The analytical results from the step-out locations were below site cleanup levels, and indicate that the down-gradient extent of POL-impacted soils has been adequately defined. The estimated in-place volume of POL contaminated soil that remains at
WP003 is 373-cubic yards.
See site file for additional information. |
Louis Howard |
| 3/6/2018 |
Document, Report, or Work plan Review - other |
Staff provided comments on the Draft Institutional Controls Plan. Main comment was for a “cleanup complete” determination by ADEC to be approved, the most current cleanup levels must be met utilizing 18 AAC 75 (as amended by November 7, 2017) over 40 inch zone cleanup levels. Otherwise, at most, WP003 will remain at “cleanup complete with institutional controls”. |
Louis Howard |
| 3/7/2018 |
Document, Report, or Work plan Review - other |
Staff commented on the draft RA-O/LTM Report. Main comment was to agree that the petroleum contamination had been adequately defined.
See site file for additional information. |
Louis Howard |
| 4/9/2020 |
Document, Report, or Work plan Review - other |
Staff reviewed and approved the 2019 LUC/ICs & LTM report for SS002, SS007, SS010, LF006, and WP003. |
Louis Howard |
| 5/19/2021 |
Document, Report, or Work plan Review - other |
Staff reviewed and provided comments on the Draft 2020 Remedial Action Operations, Institutional Control/Land Use Control Report for Driftwood Bay Radio Relay Station and five sites: LF006, SS002, SS007, SS010, and WP003, dated March 2021. Field activities included a site visit on September 13, 2020 to ensure ICs are enforced and site conditions continue to be protective of human health and the environment. RTC sent 4/20/2021, report approved on this date. |
Cascade Galasso-Irish |
| 8/3/2021 |
Document, Report, or Work plan Review - other |
DEC received and reviewed the Draft Final UFP-QAPP for Long Term Management Activities, Driftwood Bay Radio Relay Station, Alaska, dated March 2021. Comments send by ADEC on June 14th, and RTC and redline received on August 9th. The work plan describes the USAFs intent to collect groundwater samples from six wells at SS007 to determine whether trends indicate continued natural attenuation is occurring; conduct a review of institutional controls (ICs) at all sites (LF006, SS002, SS007, SS010, and WP003), and conduct a landfill cap inspection to ensure land use controls (LUCs) currently in place are effectively reducing potential exposure. SS010, SS002, and SS007 have NECs recorded at the sites documenting that cleanup have been performed to the maximum extent practicable even though residual fuel contaminated soil and/or solvent contaminated groundwater exists on site, however the 2021 sampling of SS007 is intended to demonstrate the site has reached UU/UE and can be closed without ICs. The report and RTC was approved on this date. |
Cascade Galasso-Irish |
| 8/4/2021 |
Institutional Control Update |
2010 Determination of Final Compliance for Driftwood Bay Radio Relay Station, multiple sites, recommended WP003 site for cleanup complete with Institutional Controls. ICs were proposed for the following reasons: 1) document the location and extent of residual contamination, 2) limit land use solely to very limited/remote recreational use (as outlined in the risk assessment), and 3) to document the need to properly manage residual contamination in accordance with applicable regulations. WP003 has no monitoring components and is only subject to annual interim LUC inspections to verify the LUCs/ICs are in place and effective to prevent exposure to DRO and RRO in soil. The formal LUCs/ICs have not been finalized for WP003, but inspections are occurring to confirm no unauthorized access or excavation is occurring. |
Cascade Galasso-Irish |
| 8/4/2021 |
Institutional Control Record Established |
Institutional Controls established and entered into the database. |
Cascade Galasso-Irish |
| 9/6/2022 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 71070 floor drain. |
Cascade Galasso-Irish |
| 7/31/2023 |
Document, Report, or Work plan Review - other |
On this date, DEC reviewed and approved the Final 2022 Five-Year Review for Sites SS002, SS007, SS010, and WP003 at Driftwood Bay Radio Relay Station, Alaska. This is the 2nd FYR for SS002, SS007, and SS010, and the first FYR for WP003. During this FYR period, LF006 was closed without institutional controls and is no longer subject to FYRs. An Environmental Covenant or Notice of Activity and Use Limitations (NAUL) is required to be placed on the WP003 site to maintain the institutional controls (ICs) identified in the 2018 IC Plan, with a milestone date of this year (2023). The ICs will need to document restrictions to groundwater and soil use.
Additionally, because none of the sites included in this FYR have an official Decision Document, DEC recommended a Decision Document(s) be drafted to document the official ICs and remedies in place at the four sites. Currently, ICs are functioning as intended and there is no current exposure.
|
Cascade Galasso-Irish |
| 9/18/2023 |
CERCLA PA |
On this date, DEC reviewed the Draft Preliminary Assessment Report for Aqueous Film Forming Foams (AFFF), Driftwood Bay Radio Relay Station, Alaska. The PA did not identify any AFFF sources (fire training areas or non fire training areas) at the Driftwood Bay RRS. |
Cascade Galasso-Irish |
| 1/18/2024 |
Document, Report, or Work plan Review - other |
On this date, DEC received and approved the Final 2022 Land Use/Institutional Controls and Long-Term Management Report for the Former Driftwood Bay RRS Sites LF006, SS002, SS007, SS010, and WP003. |
Cascade Galasso-Irish |
| 12/9/2024 |
Document, Report, or Work plan Review - other |
This report presents the findings of the annual IC/LUC inspections and groundwater monitoring results for 2023. The 2023 sample results show an increase of DRO concentrations from WP-03, WP-04, and WP-05 when
compared to the previous sampling results in 2022.LUCs appeared to be functioning as intended as there as there were no signs of excavation or soil disturbance. Two signs need replacement and missing signs need to be addressed. |
Kathleen Iler-Galau |
