| Action Date |
Action |
Description |
DEC Staff |
| 3/26/1993 |
Update or Other Action |
DOD and ADEC joint Technical Memorandum of understanding signed concerning the Base-wide Groundwater (GW) signed by: ADEC Jennifer Roberts RPM and USAF Joseph Williamson Chief Environmental Programs & Restoration. Due to the base-wide GW study and the FY92 field work that occurred at Operable Units (OUs) 1, 2, and 5 it appears a large portion of the GW flows into OU5 (Attachment 1 - Contour Map). Based on this fact, Elmendorf (EAFB) will move all upgradient GW into the OU5 Feasibility Study, Proposed Plan and Record of Decision (ROD). This means addressing all GW from upgradient sources (CERCLA (ST20, OUs 3 and 4) and OUs 1 and portions of OU2) and SERA) at OU5 instead of at each individual source area (See Attachment 2 - Area Map). Sites with free phased product would be looked at to see if there is an available technology to clean them up in a cost effective way. Soil contamination would be addressed at the source areas. NOTE: addressed at the source areas is interpreted by ADEC as removal through excavation or active treatment systems (e.g. high vacuum extraction, bioventing, etc.).
Also included in the file is the AF memo: Restricted Use of the Shallow Aquifer on EAFB signed by William R. Hanson P.E. GM-14 Chief Environmental Flight dated October 17, 1996 Memorandum for 3 SPTG/CEC/CEO from 3 SPTG/CEV.
1) Due to the contamination and commitments to EPA/DEC the use of the shallow aquifer for any purpose on is not allowed. Attached Facilities Board minutes-03/29/1994 0930 Item 9 has Mr. William Hanson, briefing the Board on the policy to not use the shallow aquifer due to contamination. The Board approved this policy. Minutes approved by Thomas R. Case Brigadier General USAF Commander. The IRP has RODs for OUs 3 and 6 which require, the aquifer remain unused.
2) Personnel in the review process within CES must be aware of these policies and review them on a recurring basis. It is imperative this restriction be recognized and observed during engineer reviews and operations. |
Jennifer Roberts |
| 4/21/1995 |
Update or Other Action |
AF memo: 18 April 1995 UST Meeting. Elmendorf AFB will accomplish the following actions regarding UST Projects. These actions are based upon conversation between, John Mahaffey, Larry Opperman and yourself. EAFB will make every effort to accomplish a clean closure of a UST removal site if possible.
UST removal locations requiring cleanup action will be transferred into the State-Elmendorf Environmental Restoration Agreement (SERA). A list of sites requiring cleanup will be coordinated with your office. The presumptive remedy for contaminated UST sites in the outwash plain only will be bioventing technology. Contaminated soils exceeding cleanup levels may be placed back into the excavation only if the site assessment (SA) indicates a need for further cleanup action.
Contaminated UST sites not in the outwash plain will require further investigation to determine appropriate cleanup options. We will make every attempt possible to assure new USTs or new aboveground tanks are not installed in any way that would hamper future access for cleanup. The project will first accomplish removal of all of the USTs. SA information will be used to prioritize sites for cleanup using existing project funds. Additional funding will be requested to complete cleanup if available. Sites not addressed for cleanup due to exhausted funding will be placed into SERA Phase IV. John Halverson signed on April 21, 1995. Memo was signed by Douglas G. Tarbett, Maj, USAF, Chief, Environmental Compliance. CC: 3 WG/JA and 3 SPTG/CE. |
John Halverson |
| 12/8/1995 |
Update or Other Action |
Section 2.2.10 page 2-17: The plan does not provide sufficient information to evaluate the appropriateness of addressing it through a release investigation and bioventing as a presumptive remedy. More detail on when the spill occurred, what was spilled, the volume spilled, cleanup done to date, and sampling data collected to date must be included. If hydraulic fluid and asphalt emulsion are the potential contaminants of concern, bioventing would not be a presumptive remedy. |
John Halverson |
| 3/30/1997 |
Update or Other Action |
SERA Phase IV Surface Spills Investigation Report FINAL (Mach 1997) received. The site is a petroleum, oil, and lubricants (POL) spill northwest of Building 32-187 (now known as Building 9361). The site is currently used for asphalt emulsion staging and equipment maintenance.
Surface contamination was identified during soil removal with a hydraulic fluid leak. Contamination was identified to extend beyond the excavation limits based on odor and visual inspection. Four soil borings (during June 1996) were completed and sampled. No samples were found to be above level "A" criteria. |
Louis Howard |
| 10/20/1998 |
Update or Other Action |
On October 20, 1998, a 2,000-gallon UST associated with and oil-water separater was closed in-place. Low levels on petroluem contamination were found (RRO 36 ppm, DRO 23 ppm, Benzene ND). PCBs (64 ppm) were found in the 40 cy of stockpiled soil. |
Louis Howard |
| 3/26/1999 |
Document, Report, or Work plan Review - other |
ADEC sent Air Force letter regarding the October 20, 1998, closure of UST, AFID # 187OU, located at building 32-187 on Elmendorf AFB. Review of the site assessment report received December 16, 1998, prepared by ASRC Construction Company, Inc. Facility ID 0-001525, tank # 377.
The Department of Environmental Conservation (ADEC) has received and reviewed the site assessment report documenting the closure of the above mentioned regulated underground storage tank (UST). The report summarizes the information collected during closure of a 2000-gallon used oil UST and an adjacent oil/water separator. Based on the information and laboratory data presented in the report, it appears all the contaminated soil, above the required cleanup level for this site, has been removed from the excavation and is currently being stockpiled near the site.
Data presented in Table 4 of the site assessment report indicates confirmation sample, 87007SP, collected from the 40 cy soil stockpile, contained 64 ppm of PCBs. The Department has established a cleanup level of 10 ppm for PCBs in soil. Soil that has PCB contamination greater than the 10 ppm must undergo corrective action. In accordance to 18 AAC 78.250,
ADEC is requesting the Air Force to develop a corrective action plan to address the PCB contaminated soil stockpile. At a minimum, the plan should include the following items: A map showing the location where the stockpiled soil is currently being stored. Assurances that the stockpile is constructed of approved materials and designed to prevent water run-on and run-off in accordance to with 18 AAC 78.274. A plan to either treat or properly dispose of the contaminated soil. |
Louis Howard |
| 9/4/1999 |
Update or Other Action |
The 40 cy of PCB contaminated soil was packed in eight roll off containers and transported to an EPA approved storage facility. Facility Envirosafe Services of Idaho, 10.5 miles NW of Grandview Idaho |
Louis Howard |
| 11/29/1999 |
Document, Report, or Work plan Review - other |
ADEC sent the Air Force letter regarding: Receipt of UST final site assessment reports: AFID 130ou, AFID 187ou, AFID 200ou, AFID 290ou, AFID 302ou, AFID 470ou, AFID 570ou, and AFID 849ou, Elmendorf AFB. Facility ID 0-001525.
On June 14, 1999, the Department of Environmental Conservation (ADEC) received copies of the underground storage tank (UST) final site assessment reports mentioned above. ADEC has reviewed the majority of the draft site assessments for these USTs and has taken the following actions: requested the U.S. Air Force to conduct a release investigation, issued a no further action letter, or has not completed a review of the either the draft or final site assessment reports.
ADEC has requested the U.S Air Force to conduct a release investigation at the following UST sites: UST AFID 130ou, old building # 11-130, UST AFID 290ou, old building # 11-290.
To date ADEC has not received a release investigation work plan for these UST sites. Please provide the Department with an updated work schedule for these release investigations.
ADEC has issued no further action letters for the following UST sites: UST AFID 200ou, old building # 21-200, UST AFID 302ou, old building # 42-302, UST AFID 849ou, old building # 21-849.
ADEC has not completed a review the following UST site assessment reports: UST AFID 570ou, old building # 11-570, UST AFID 470ou, old building # 11-470, UST AFID 800ou, old building # 5-800.
UST AFID 187ou: ADEC is still waiting for confirmation that the PCB contaminated soil excavated during the UST decommissioning has been received by an authorized hazardous waste facility. Once documentation has been received, ADEC would again review the data for possible site closure. |
Louis Howard |
| 10/21/2002 |
Update or Other Action |
J. Roberts sent a letter to Joe Williamson dissolving the State Elmendorf Environmental Restoration Agreement. The Alaska Department of Environmental Conservation (DEC) has reviewed the issue of abolishing the State Elmendorf Environmental Restoration Agreement (SERA) per your recommendation. Elmendorf Air Force Base and DEC entered into the SERA in 1992. The agreement was developed as a tool to bring the Base into compliance with Alaska's regulations addressing underground storage tanks, oil and other hazardous substance releases and solid waste.
Since that time, Elmendorf has made significant progress in investigating and cleaning up historic contamination problems. Many of the sites covered by the SERA have been successfully cleaned up and closed. Cleanup is underway at the remaining sites.
Additionally, Alaska has amended the regulations addressing fuel storage tanks, oil and other hazardous substance spills and solid waste. We concur with you that the SERA is no longer a necessary or beneficial. This letter serves as notice that DEC will end oversight on environmental work at Elmendorf by using the SERA. Instead, it is understood that the sites and programs formerly addressed by SERA: solid waste, underground storage tanks (UST), and oil and other hazardous substance discharges will be addressed in accordance with 18 AAC 60, 18 AAC 78 and 18 AAC 75. |
Jennifer Roberts |
| 12/5/2003 |
Site Closure Approved |
Site closed-below cleanup level "A" criteria. |
Louis Howard |
| 4/23/2004 |
Site Added to Database |
DRO. |
Sarah Cunningham |
| 7/23/2004 |
Site Ranked Using the AHRM |
Site ranked by project manager since it was not ranked before. |
Louis Howard |
| 11/14/2007 |
GIS Position Updated |
61.2459 N latitude -149.8283 W longitude |
Louis Howard |
| 12/5/2007 |
Update or Other Action |
Staff commented on the Site Closure Confirmation Request, Environmental Compliance Program, Elmendorf AFB, Alaska dated November 6, 2007 for twenty-three (23) sites submitted by the Air Force’s Environmental Compliance Program. This request was to confirm the sites have met all applicable State of Alaska cleanup regulations.
During the State-Elmendorf Environmental Restoration Agreement (SERA) IV investigation conducted in 1996, four borings were advanced within the approximate spill area to the groundwater table. No contamination was found above category “A” and site was recommended for no further action.
An oil-water separator was closed in-place at the site on October 20, 1998. PCB contamination found in the forty (40) cubic yards of stockpiled soil. In September 1999, the 40 cubic yards of PCB contaminated soil was packed in eight roll off containers and transported to an EPA approved storage facility. The facility is Envirosafe Services of Idaho, 10.5 miles northwest of Grandview, Idaho. In December 2003, ADEC agreed no further remedial action was necessary at SS411.
ADEC still concurs that SS411 is eligible for site closure and a “Site Closure Approved” action will be entered. ADEC is basing its decision on the most current and complete data provided by the Air Force. ADEC reserves its rights, under: 18 AAC 75 Oil and Other Hazardous Substances Pollution Control regulations (as amended through December 26, 2006), 18 AAC 78 Underground Storage Tank regulations (as amended through October 27, 2006) and Alaska Statute 46.03 to require additional investigation, cleanup, or containment, if subsequent information indicates that: additional contamination remains at the site which was previously undiscovered and presents an unacceptable risk to human health, safety, or welfare, or the environment. Please note, per 18 AAC 75.325(i), department approval is required prior to disposing of soil or water from a site that is, or has been, subject to the site cleanup rules. |
Louis Howard |
| 7/6/2011 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 73564 name: auto-generated pm edit Elmendorf SS411 Bldg 9361 |
Louis Howard |
