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Site Report: Tatalina LRRS SS009 Spill/Leak 5

Site Name: Tatalina LRRS SS009 Spill/Leak 5
Address: Truck Fill Stand, aka Spill/Leak No. 5, McGrath, AK 99627
File Number: 2655.38.015, 2655.38.001
Hazard ID: 2857
Status: Cleanup Complete - Institutional Controls
Staff: Axl LeVan, 9074512156 axl.levan@alaska.gov
Latitude: 62.914527
Longitude: -156.012848
Horizontal Datum:NAD83

We make every effort to ensure the data presented here is accurate based on the best available information currently on file with DEC. It is therefore subject to change as new information becomes available. We recommend contacting the assigned project staff prior to making decisions based on this information.

Problems/Comments

The former Truck Fill Stand ws used until the mid-1980s to supply fuel. A release of mogas from storage tanks at this location was reported in 1983 and routine spills during fueling activities at the fill stand may also have occurred in the past. The spilled fuel may have migrated into some of the surface drainage systems; no fuel recovery was documented. The truck fill stand was located on the eastern side of the large flat gravel pad along the former road east of the former garage. The former Lower Camp structures were built on this pad. These structures, including the garage, were demolished in the mid-1980s and there are no visible remains. Some of the demolition debris was removed from the site area and some of the debris was disposed within the site area. Due to the close proximity and similar historical activities of IRP Sites SS07 and SS09, the maintenance and inspection program for IRP Site SS07 has been incorporated into the maintenance and inspection program for IRP Site SS09. ~13.5 Miles WSW of McGrath. Lower Camp Sites consist of: Hardfill No. 1 and WAA No. 1 (SS-011), POL Tank Farm (SS-003), WAA No. 3 (SS-007), Truck FIll Stand (SS-009), WAA No. 4, Old Sanitary Sewer System, Former Sewage Lagoon, and Former Paint Shop (SS-008), WAA No. 2 (Upper & Lower) and Upper Landfill No. 1 (LF-010), Lower Landfill No. 2 (LF-004), and the Airstrip (OT-006). EPA ID: AK4572728711

Action Information

Action Date Action Description DEC Staff
5/7/1981 Site Added to Database Date the "umbrella" site, Tatalina "umbrella" site, Tatalina LRRS Base Facilities, Reckey 198125X91270, was originally added to the database. Former Staff
7/22/1988 Update or Other Action Final Technical Support Document for Record of Decision (dated February 29, 1988) received. Sites 1 (SS001), 2, 3, and 9 are spill/leak sites, sites 5, 7, 8, and 10 are previously used dumpsites or waste accumulation areas, site 6 is an area of Lower Camp road oiling, and sites 4 and 11 are the active landfill and waste accumulation area, respectively. Spill/Leak No. 5 (Site 9): Several minor MOGAS spills have been reported at the truck fill stand adjacent to the new station complex. None of the spilled fuel was recovered, but was reported to have percolated into the soil. The site visit team observed that the fueling location is situated on the gravel pad constructed for the new station complex. No evidence of a spill remains and no further action is considered warranted. Note attached to this document from ADEC project manager, Ray Burger, remarks that:USAF (David Paulsen Colonel March 7, 1988), USEPA (Jacques Gusmano February 21, 1988) and ADEC signed the ROD in 1988 (Bill Lamoreux July 22, 1988) , but the ROD was based on almost no sampling of some sites, therefore was deemed inadequate and a RI/FS was necessary. Bill Lamoreaux
8/29/1992 Update or Other Action 1992 Site Investigation. The 1992 site investigation (SI) included field sampling at the m installation (August 25-29, 1992) and additional record searches for the previously D identified areas of concern. The SI was conducted to provide information necessary to calculate a hazard ranking score (HRS) under the CERCLA program. Some of the sites D identified in the earlier PA were screened to determine HRS potential and subsequently eliminated from further study. The remaining eight source areas (LF004, DP005, OT006, SS007, SS008, LF010, SS011, and OT012) were investigated during the field investigation. The 1993 SI report included laboratory results for the soil and water samples collected. No further action was recommended in the report for the areas investigated. The Air Force review of the report determined that insufficient data were presented to support the no further action recommendation and scheduled additional site investigation activities at the installation. Source 8: Waste Accumulation Area No. 4 (SS008): TLK-005-A733 Surface Soil 0.5’ bgs Aroclor 1.9 mg/kg, TLS030-A734 Soil boring, 3.0’ bgs 10 mg/kg, Dieldren 23 (cleanup level MGW is 7.6 ug/kg). Louis Howard
4/19/1993 CERCLA SI EPA letter to Patrick M. Coullahan (LTC), Commander U.S. Air Force, 11th CEOS. This letter is to inform you that EPA Region 10 has completed the review of the Site Inspection (SI) report for the US Air Force Tatalina Long Range Radar Site, Alaska. The SI has been evaluated in accordance with 40 CFR Part 300 Appendix A, which is EPA's Hazard Ranking System (HRS) used to evaluate federal facilities for inclusion on the National Prioritles List (NPL). From our evaluation, EPA has determined that the site does not score high enough to be proposed for inclusion on the NPL. Therefore, a recommendation of no further remedial action planned (NFRAP) on the EPA'S part will be included in our Federal Agency Hazardous Waste Compliance Docket tracking system. If new or additional information becomes available that suggests the facility may score high enough to be proposed for the NPL, EPA must reevaluate your facility accordingly. EPA's NFRAP designation will NOT relieve your facility from complying with appropriate Alaska state regulations (i.e. A.S. 46.03, 18 AAC 75, 18 AAC 78, 18 AAC 60, 18 AAC 70, 18 AAC 80, 18 AAC 62). The Superfund Amendments and Reauthorization Act (SARA) of 1986, Section 120(a) (4)* requires federal facilities to comply with state cleanup requirements and standards when not listed on the NPL. All sources of contamination should be remediated to Alaska State clean-up standards. An alternative water supply should be provided IMMEDIATELY to on site personnel, and the water gallery well should be resampled. Analytical results should be provided to both the EPA and the state of Alaska. This facility will not be removed from the Federal Agency Hazardous Waste Compliance Docket, but as noted earlier, will be listed for no further action by EPA. If you have any questions regarding EPA's evaluatlon of the site, please contact me, at (206)553-1808. *NOTE To File: CHAPTER 103--COMPREHENSIVE ENVIRONMENTAL RESPONSE, COMPENSATION, AND LIABILITY SUBCHAPTER I--HAZARDOUS SUBSTANCES RELEASES, LIABILITY, COMPENSATION Sec. 9620. Federal facilities (a) Application of chapter to Federal Government (1) In general Each department, agency, and instrumentality of the United States (including the executive, legislative, and judicial branches of government) shall be subject to, and comply with, this chapter in the same manner and to the same extent, both procedurally and substantively, as any nongovernmental entity, including liability under section 9607 of this title. Nothing in this section shall be construed to affect the liability of any person or entity under sections 9606 and 9607 of this title. (2) Application of requirements to Federal facilities All guidelines, rules, regulations, and criteria which are applicable to preliminary assessments carried out under this chapter for facilities at which hazardous substances are located, applicable to evaluations of such facilities under the National Contingency Plan, applicable to inclusion on the National Priorities List, or applicable to remedial actions at such facilities shall also be applicable to facilities which are owned or operated by a department, agency, or instrumentality of the United States in the same manner and to the extent as such guidelines, rules, regulations, and criteria are applicable to other facilities. No department, agency, or instrumentality of the United States may adopt or utilize any such guidelines, rules, regulations, or criteria which are inconsistent with the guidelines, rules, regulations, and criteria established by the Administrator under this chapter. (3) Exceptions This subsection shall not apply to the extent otherwise provided in this section with respect to applicable time periods. This subsection shall also not apply to any requirements relating to bonding, insurance, or financial responsibility. Nothing in this chapter shall be construed to require a State to comply with section 9604(c)(3) of this title in the case of a facility which is owned or operated by any department, agency, or instrumentality of the United States. (4) 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 or facilities that are the subject of a deferral under subsection (h)(3)(C) of this section 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. Jennifer Roberts
3/28/1995 Update or Other Action Management Action Plan (draft dated Febraruy 1995, received March 28, 1995, no final received). Ray Burger
1/8/1997 Update or Other Action Final UST Release Investigation Report (dated December 1996) for the Water Gallery near Waste Accumulation Area Number 4 (SS08) and Truck Fill Stand (SS09). Gretchen Pikul
1/13/1997 Update or Other Action Sampling Analysis Plan received. Three monitoring wells will be placed along the southeast perimeter of SS-08 and SS-09 to delineate the extent of contamination from the Lower Camp Area. Soil sampling rationale discussed above in SS-008 WAA No. 4. Assessment of historical releases from the former truck fill stand on pad drainage is discussed above under SS-008 Waste Accumulation Area No. 4. To assess the impact of historic releases on pad drainage, water and sediment samples will be collected at the two culverts draining the eastern and southeastern areas of the pad. This sampling scheme is intended to assess potential impact of three areas known to be impacted by historic releases: SS-007 (WAA No. 3), SS-008 (WAA No. 4), and SS-009 (former truck fill stand area). A water sample will be collected from each culvert outfall and submitted for AK101, AK102, 8260A, 8270B, 8081 (pesticides and PCBs), 6010A/7000 series, 7470A (for water samples), E160.1, and E160.2 analyses. The E160.1 and E160.2 (filterable and nonfilterable residue, respectively) will characterize the outfall for total dissolved and total suspended solids. Water samples will be field tested for E120.1, E150.1, and E170.1. A sediment sample will be collected just below each culvert outfall and submitted for AK101, AK102, AK103, 8260A, 8270B, 8081 (pesticides and PCBs), 6010A/7000 series, 7471A, 9012, and 9060 analyses. The drainage downgradient of each culvert will also be sampled. A surface water sample will be submitted for AK101, AK102, 8260A, 8270B, 8081 (pesticides and PCBs), 6010A/7000 series, 7470A (for water samples), E160.1, and E160.2 analyses. Water samples will be field tested for E120.1, E150.1, and E170.1. A sediment sample will be collected at each locahon for AK101, AK102, AK103, 8260A, 8270B, 8081 (pesticides and PCBs), 6010A/7000 series, 7471A, 9012 and 9060 analyses. Gretchen Pikul
1/13/1997 Update or Other Action Sampling Analysis Plan received. Three monitoring wells will be placed along the southeast perimeter of SS-08 and SS-09 to delineate the extent of contamination from the Lower Camp Area. Soil sampling rationale discussed above in SS-008 WAA No. 4. Assessment of historical releases from the former truck fill stand on pad drainage is discussed above under SS-008 Waste Accumulation Area No. 4. To assess the impact of historic releases on pad dranaige, water and sediment samples will be collected at the two culverts draining the eastern and southeastern areas of the pad. This sampling scheme is intended to assess potential impact of three areas known to be impacted by historic releases: SS-007 (WAA No. 3), SS-008 (WAA No. 4), and SS-009 (former truck fill stand area). A water sample will be collected from each culvert outfall and submitted for AK101, AK102, 8260A, 8270B, 8081 (pesticides and PCBs), 6010A/7000 series, 7470A (for water samples), E160.1, and E160.2 analyses. The E160.1 and E160.2 (filterable and nonfilterable residue, respectively) will characterize the outfall for total dissolved and total suspended solids. Water samples will be field tested for E120.1, E150.1, and E170.1. A sediment sample will be collected just below each culvert outfall and submitted for AK101, AK102, AK103, 8260A, 8270B, 8081 (pesticides and PCBs), 6010A/7000 series, 7471A, 9012, and 9060 analyses. The drainage downgradient of each culvert will also be sampled. A surface water sample will be submitted for AK101, AK102, 8260A, 8270B, 8081 (pesticides and PCBs), 6010A/7000 series, 7470A (for water samples), E160.1, and E160.2 analyses. Water samples will be field tested for E120.1, E150.1, and E170.1. A sediment sample will be collected at each locahon for AK101, AK102, AK103, 8260A, 8270B, 8081 (pesticides and PCBs), 6010A/7000 series, 7471A, 9012 and 9060 analyses. Gretchen Pikul
2/13/1997 Update or Other Action Site added by Shannon and Wilson, Inc. this date. Site split off from the Tatalina "umbrella" site, Tatalina LRRS Base Facilities, Reckey 198125X912701. All relevant information from the "umbrella" site moved into subordinate sites 10/31/01 by Pikul and Petrik. S&W-Miner
2/13/1997 Update or Other Action (Old R:Base Action Code = SI - Site Investigation). SI action added on 02/13/1997 by Shannon and Wilson, Inc. Based on Air Force Relative Risk Evaluation Worksheet dated 8/28/95, Site Investigation is the current phase. S&W-Miner
3/7/1997 Site Characterization Workplan Approved Remedial Investigation Workplan and associated plans (draft dated August 1996; final dated June 1997 and received on January 13, 1997; ADEC comment letter dated February 4, 1997; comment resolution meeting on March 7, 1997; no final received following ADEC comment letter and comment resolution meeting. Gretchen Pikul
1/12/1998 Update or Other Action Final Management Action Plan (dated and received in January 1998). Gretchen Pikul
2/10/1998 Update or Other Action Draft Remedial investigation report received. Truck Fill Stand (SS-009) RI results indicate that residual petroleum contamination (DRO) from past fuel spills exists at the former truck fill stand. Petroleum contamination (DRO) also exists in a subsurface lens at a 6-foot depth along the eastern edge of the Lower Camp pad that was sampled to provide RI data for both SS-009 and SS-008 (WAA No. 4). The contamination likely resulted from past surface spills and potential fuel disposal followed by filling and grading over of the pad during demolition of the Lower Camp buildings in the mid-1980s. Analytical results from the soil samples collected from test pits and borings indicate the presence of POL contamination within the Lower Camp pad. Low levels of POL compounds were detected in soil samples from BH2/MW, BH3/MW, BH4 and BH6. Elevated GRO, DRO, and RRO concentrations were found in BH7, BH8, TP1, and TP2. Maximum GRO levels (630 mg/kg) were found in surface soils at BH7, but decreased significantly to 95 mg/kg at 6 feet and to below reporting limits at the 15-foot depth in that boring. Maximum DRO levels (23,900 mg/kg) were found in soils at the 6-foot depth in BH8 but decreased significantly to 136 mg/kg at the 15-foot depth in the boring. RRO levels were also elevated in BH6 at the 6-foot depth but decreased at the 15-foot depth. The source of the elevated POL soil concentrations is likely surface spills associated w_th refueling at the old truck fill stand and past fuel disposal activities along the edge of the Lower Camp pad. The analytical data and site observations indicate that a subsurface lens of petroleum hydrocarbon contamination at this location within the Lower Camp pad resulted from past surface releases and disposal followed by filling and grading of the pad during Lower Camp building removal activities. DRO was detected in groundwater samples collected for this source area at BH2/MW, BH3/MW, and the infiltration gallery at 55ug/L, 153ug/L, and 73ug/L, respectively. The infiltration gallery sample result has a laboratory qualifier of "B," indicating that the analyte was found in an associated laboratory blank as well as in the sample. The presence of contamination in groundwater suggests that very limited infiltration of POL contaminants may have occurred from source areas on the Lower Camp pad. Contaminants from surface releases on the Lower Camp pad may have infiltrated to bedrock under the pad and migrated towards the creek along the bedrock. As the POL compounds migrated in the perched water table, they were likely sorbed to soil particles and diluted along the pathway. This reduction in concentrations by physical processes may explain why only low levels of POL contaminants in water were reported m downgradient water samples. Analytical results from the sediment sample collected along the creek downgradient of the Lower Camp pad indicated low levels of pesticides and their breakdown products. 4,4'-DDD, 4,4'-DDE, and 4,4'-DDT were detected at 0.32, 0.24, and 2.5 mg/kg, respectively. The levels of these pesticides exceeded ecological risk levels developed in the baseline risk assessment. VOCs and PCBs were not detected in the sediment. VOCs detected in surface water were at very low levels and the majority of the results were qualified by lab as potentially biased due to matrix interference. No SVOCs, pesticides, or PCBs were detected in the surface water sample collected at this location. No further action is recommended for site SS-009. WAA No. 4. RI sampling activities and results reported above for SS-009 also apply to the WAA No. 4 portion of SS-008, because the two sites are located within 100 feet of each other and similar contaminants were suspected in each area, on the basis of site history of past operations. To determine if petroleum contamination (DRO) documented along the eastern edge of the Lower Camp pad is restricted to the pad or migrates from the pad toward downgradient surface water, annual monitoring of surface water and sediment at the same creek location used during the 1997 RI for a period of 3 years is recommended. Gretchen Pikul
6/2/1998 Update or Other Action ADEC participated in a facility-wide site visit. Gretchen Pikul
10/13/1998 Risk Assessment Report Approved Risk Assessment, a part of the Remedial Investigation Report (draft dated February 1998, final dated October 1998); ADEC comment letter dated April 6,1998; comment resolution meetings on May 11, 1998; ADEC Memorandum on Response to Comments dated August 3, 1998. Human health risks were below the ADEC risk management standards at the SS-009 source area. 4,4'-Dichlorodiphenyldichloroethane (4,4'-DDD), 4,4'-Dichlorodiphenyldichloroethylene(4,4'-DDE), and 4,4'-dichlorodiphenyltichloroethane (4,4'-DDT) in one sediment sample were designated COECs in the ecological risk assessment because they exceeded the critical toxicity value for aquatic organisms The source of those contaminants is likely historic usage of pesticides at the Tatalina LRRS and not the truck fill stand. The levels detected were below proposed ADEC soil cleanup standards. Gretchen Pikul
10/13/1998 Site Characterization Report Approved Remedial Investigation Report (draft dated February 1998, final dated and received in October 1998) includes a risk assessment; ADEC comment letter dated March 31, 1998; comment resolution meeting on May 15, 1998. The objectives of the RI field work at SS-009 (Truck Fill Stand) were to estimate the extent of potential contamination at this potential source area and assess potential impacts of historic releases on lower pad drainage, confirm the absence or presence of groundwater, and if present, define the nature of groundwater contarmnation and flow characteristics. Maximum GRO levels (630 mg/kg) were found in surface soils at BH7, but decreased significantly to 95 mg/kg at 6 feet and to below reporting limits at the 15-foot depth in that boring. Maximum DRO levels (23,900 mg/kg) were found in soils at the 6-foot depth in BH8 but decreased significantly to 136 mg/kg at the 15-foot depth in the boring. RRO levels were also elevated in BH6 at the 6-foot depth but decreased at the 15-foot depth. The source of the elevated POL soil concentrations is likely surface spills associated with refueling at the old truck fill stand and past fuel disposal activities along the edge of the Lower Camp pad. The analytical data and site observations indicate that a subsurface lens of petroleum hydrocarbon contamination at this location within the Lower Camp pad resulted from past surface releases and disposal followed by filling and grading of the pad during Lower Camp building removal activities. COCs or COECs were identified for the test pit and soil boring/monitoring well locations evaluated in the baseline risk assessments for SS-009. In the Lower Camp pad, the elevated POL compounds were found immediately around SS-009 and the eastern bank of the pad. DRO levels in subsurface soil at the BH8 location exceed current ADEC non-UST guidance and proposed cleanup standards in draft 18 AAC 75 regulations (November 12, 1997). Analytical data from groundwater and from seep and sediment downgradient of the source area confirm that contaminants have not migrated through the pad to groundwater or to surface water pathways in the area. The fuel contamination originated from fuel releases that occurred prior to the removal of Lower Camp structures in the mid-1980s; it is assumed that the petroleum hydrocarbon levels have been decreasing over the years and they are expected to continue to decrease in that area. 4,4'DDT, 4,4'-DDD, and 4,4'-DDE were detected in the one sediment sample at concentrations exceeding aquatic organism CTVs. For that reason, they were retained as COECs. The source of these contaminants is likely historic usage of pesticides in the drainage area upgradient to the sampling point. These compounds were also detected in BH7, the two test pits, and in a sediment sample approximately 1,600 feet downgradient along the same creek. These concentrations are consistent with sampling results from the 1992 sampling program, are likely residual levels from past routine use of pesticides at the installation, and do not warrant remedial action. On the basis of site observations and analytical results of this RI, no further action is recommended at SS-009. Future monitoring for potential future impacts from petroleum contamination within the eastern edge of the Lower Camp pad is discussed in Section 8.8. Gretchen Pikul
12/4/1998 Meeting or Teleconference Held Record of Decision template reviewed and discussed. Gretchen Pikul
12/24/1998 Document, Report, or Work plan Review - other The Department of Environmental Conservation (DEC), DoD Oversight group, received the Draft Proposed Plan for No Further Action (dated December 1998) on December 8, 1998. The Draft Proposed Plan for No Further Action covers IRP Sites DP-005, OT-012, SS-001, SS-007, SS-009, LF-010, and OT-006, Tatalina LRRS, Alaska ADEC has completed our review and provided comments below. A State of Alaska Memorandum dated December 9, 1998 has also been submitted in response to this draft Proposed Plan; similar comments were noted but not reiterated in this comment letter. Within this Proposed Plan and the upcoming Record of Decision (ROD), a deed notice/land record (and dissemination of this information to current and future site workers), documentation of adequate cover, and an annual cover maintenance schedule (for 2-3 years following the final ROD) will be necessary at several sites. These sites include SS-009,LF-010, DP-005, and SS-007. In addition, site SS-001 will require a deed notice, as well as a mechanism to distribute this information to current and future site workers. The design and setup of the Recommended actions section stands out nicely and is easily read. While reviewing this Proposed Plan, several RI figures present "-" within the petroleum hydrocarbon analyses (GRO, DRO, and RRO). On the figures, the "-" indicates that the sample was not analyzed or reported for this parameter. However the laboratory data indicates that many of these sample data is "R" flagged; this information is not clearly discussed within the RI text. For example, SS-00 the MAR site, presents extremely limited data on the petroleum hydrocarbon compounds which was the potential contaminant of concern within this area. This flagged data and the rationale for no conclusive petroleum hydrocarbon data needs to be discussed during the comment resolution meetings on the Proposed Plan and the upcoming ROD. The site descriptions do not adequately capture the actual site description and site activities to sufficiently inform the intended readers (community members). For example, LF-004 is an active landfill, and WAA No. 3 had drum storage. Truck Fill Stand (SS-009): The distinction between sites SS-008 and SS-009 needs to be more clearly defined within this plan. The reference to the petroleum hydrocarbon contamination (23,900 mg/kg in BH8) exceeding ADEC cleanup levels within SS-008 (Waste Accumulation Area No.4, Old Sanitary Sewer System, Former Sewage Lagoon, and Former Paint Shop) needs to be removed from this proposed plan. As agreed upon in a meeting on December 2nd, further subsurface investigation will be conducted within this exceedence area. The NFA decision needs to incorporate site SS-009 only. Gretchen Pikul
2/18/1999 CERCLA Proposed Plan Proposed Plan for No Further Action: IRP Sites DP05, OT12, SS01, SS07, SS09, LF10, and OT06 (draft dated December 1998, final dated February 1999); ADEC internal briefings on December 10 and 21; ADEC comment letter dated December 24, 1998; comment resolution meeting dated January 11, 1999; public meeting on February 18, 1999. Truck Fill Stand (SS-009L Levels of diesel-range organics exceeded ADEC-recommended cleanup levels at one soil sample location at this site. The sample was taken within the gravel pad, and there is no indication contamination has traveled off the pad. Sampling of groundwater and downgradient seeps and sediments during the 1997 RI also confirmed that contaminants have not traveled vertically to groundwater or off the pad to surface water. Site SS-009 is adjacent to another IRP site that the USAF is planning to further investigate. The diesel contamination at SS-009 may have resulted from past activities at the other IRP site and will be further evaluated during that investigation. The human health risks were below the ADEC risk-management standards at this site. The ecological risk assessment indicated that levels of 4,4'-DDD, 4,4'-DDE,and 4,4'-DDT in one sediment sample exceeded risk-management standards. The source of these contaminants is likely historical routine use of pesticides and not a result of past spills or disposal. The levels detected were below ADEC-recommended cleanup levels. Recommended action: No Further Remedial Action Planned. Gretchen Pikul
4/16/1999 Document, Report, or Work plan Review - other The Alaska Department of Environmental Conservation (ADEC), DoD Oversight group, received the Draft Decision Documents for 7 No Further Response Action Planned (NFRAP) IRP Sites: DP- 005, OT-012, SS-001, SS-007, SS-009, LF-010, and OT-006 (dated February 1999) on March 9, 1999. We have completed our review and provided comments below. As previously discussed within this comment letter, at the public meeting on February 18, 1999, a community member informed the agencies of two areas of concern not addressed by the RI and Risk Assessment studies. One of these areas is at Upper Camp near DP-005 north of MK Debris Site and Northeast Landfill. The other area was situated in Lower Camp where a former tram building was located. This former building was approximately 60 by 60 feet and 80 feet tail, with a concrete foundation that had a lip (resembling a short containment wall), metal walls and roof, and floor drain(s) that discharged into surrounding soils. After the tram was no longer functioning, the building was used to store oils and hazardous materials/wastes. This storage was more evident when officials visited the Tatalina facility and oils and hazardous materials/wastes were accumulated in this building because it was not generally inspected. The former tram building also had storage of transformers that may or may not have been drained outside the building when the transformers were no longer useful. When the former building was used for storage, it was open to the elements, and precipitation and surface water runoff was free to flow within and out of the building. A March 1, 1999 ADEC e-mail to the community (with a "cc" to yourself) included this information (along with the other area of community concern at Upper Camp) and requested attention for future sampling and funding considerations. These cormnunity areas of concern should also be included within the Responsiveness Summary, with the statement that ADEC and the Air Force will evaluate these areas as separate sites in the future. The pesticides retained as COECs need a closing statement to whether the exceedences are expected to adversely affect the eco-system. The conclusion statement that "the concentrations are consistent with sampling results from the 1992 sampling program, arc likely residual levels from past routine use of pesticides at the installation, and do not warrant remedial action" alone is not an acceptable reason to not warrant remedial action. Gretchen Pikul
6/17/1999 Update or Other Action Work Plan Underground Storage Tank Post Closure Investigations; draft dated and received on June 4, 1999; Internal meeting with STP project manager on and ADEC comment letter dated June 17, 1999; no final work plan received by ADEC. Gretchen Pikul
10/14/1999 Site Ranked Using the AHRM Initial ranking. Gretchen Pikul
4/28/2000 Document, Report, or Work plan Review - other Underground Storage Tank Post-Closure Report; final report received December 21, 1999, no draft reports were received by ADEC for review and comment; ADEC STP comment letter dated April 28, 2000 noted decisions on facility tank sites. Gretchen Pikul
8/10/2000 Meeting or Teleconference Held Public meeting in Takotna, and site visit to Sterling Landing. Gretchen Pikul
1/17/2001 CERCLA ROD Approved 7 Decision Documents signed by ADEC on November 21, 2000, and by Air Force on January 17, 2001. Sites include OT012, SS001, SS007, LF010, OT006, SS009, and DP005. This Decision Summary provides an overview of the No Further Action determination for Source Area SS-009 at Tatalina Long Range Radar Station (LRRS), Alaska. This Decision Document presents the physical features of the site, the contaminants present, and the associated risks to human health and the environment. It also describes the rationale for a no further action determination and states how the determination satisfies requirements of the Defense Environmental Restoration Program, 10 United States Code (USC) 2701, consistent with the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), 42 USC 9601 and Executive Order 12580, and the National Oil and Hazardous Substances Pollution Contingency Plan. The U.S. Air Force (USAF) completed a Remedial Investigation (RI) at SS-009 to provide information regarding the nature and extent of contamination in the soils. A baseline Human Health Risk Assessment and Ecological Risk Assessment were developed and used in conjunction with the RI to determine the need for remedial action. The RI and risk assessments were completed for Alaska Department of Environmental Conservation (ADEC) review and approval. On the basis of the results of the RI and risk assessments, it has been determined that no unacceptable risk or threat to public health or the environment exists. Therefore, there is no need for remedial action under CERCLA. Complete details regarding the remedial investigation and risk assessment methodology and results are included in the Tatalina Long Range Radar Station Remedial Investigation Report (October 1998). On the basis of the 1997 RI and risk assessments conducted at IRP Site SS-009, there is no need for further remedial action. This determination is protective of human health and the environment and complies with Applicable or Relevant and Appropriate Requirements (ARARs) for the site. There are three soil samples with minor exceedences over the Method 2 Diesel Range Organics soil cleanup levels for migration to groundwater (323,720 mg/kg and 2,500 mg/kg), and one soil sample with a minor exceedence over the Method 2 Gasoline Range Organics soil cleanup level for migration to groundwater (630 mg/kg). However, based on the site history, the limited extent of contamination, the contaminant concentrations that are unlikely to adversely affect groundwater quality, the upgradient location of the samples from IRP Site SS-008 which is under further investigation, and since the site area will have institutional controls, no unacceptable risk or threat to public health or the environment exists. Location BH-8 was addressed in the 1997 Remedial Investigation. This location is more appropriately addressed as part of IRP site SS-008. Additional subsurface investigation was conducted at BH-8 and SS-008 in 1999, and potential remedial actions will be addressed under IRP SS-008. Institutional control in the form of notice in land records will be developed by the Air Force, with ADEC concurrence, for waste left in place and within a base master plan. Visual inspections of cover material will be conducted and documented over a 5 year period (the first, third, and fifth years) to check that no erosion of the cover is occurring. After the last inspection, a 5-year review will be conducted to review the results of the inspections. If the cover material has remained in good condition, no further inspections will be required. Due to the close proximity and similar historical activities of IRP Sites SS-007 and SS-009, the maintenance and inspection program for IRP Site SS-007 has been incorporated into the maintenance and inspection program for IRP Site SS-009. The selected remedy is protective of human health and the environment, complies with federal and state requirements that are legally applicable or relevant and appropriate, and is cost-effective. The statutory preference for treatment is not satisfied because treatment was not found to be necessary. Contaminant levels at the site have been determined to present no unacceptable threat to human health or the environment; thus, no treatment is necessary. This decision may be reviewed and modified in the future if new information becomes available which indicates the presence of previously undiscovered contamination or exposure routes that may cause a risk to human health or the environment. Jennifer Roberts
1/17/2001 Conditional Closure Approved 7 Decision Documents signed by ADEC on November 21, 2000, and by Air Force on January 17, 2001. Sites include OT012, SS001, SS007, LF010, OT006, SS009, and DP005. SS009 Decision Document has a no further remedial action planned status. However, there are three soil samples with minor exceedences over the Method 2 DRO soil cleanup level for migration to groundwater and one soil sample with a minor exceedence over the Method 2 GRO soil cleanup level for migration to groundwater. Additional subsurface investigation was conducted at BH-8 and SS-008 in 1999, and potential remedial actions will be addressed under IRP SS-008. Institutional control in the form of notice in land records will be developed by the Air Force, with ADEC concurrence, for waste left in place and within a base master plan. NOTE TO FILE: § 300.430 Remedial investigation/feasibility study and selection of remedy.(a) General—(1) Introduction. The purpose of the remedy selection process is to implement remedies that eliminate, reduce, or control risks to human health and the environment. Remedial actions are to be implemented as soon as site data and information make it possible to do so. Accordingly, EPA has established the following program goal, expectations, and program management principles to assist in the identification and implementation of appropriate remedial actions. (iii) Expectations. EPA generally shall consider the following expectations in developing appropriate remedial alternatives: (D) EPA expects to use institutional controls such as water use and deed restrictions to supplement engineering controls as appropriate for short- and long-term management to prevent or limit exposure to hazardous substances, pollutants, or contaminants. Institutional controls may be used during the conduct of the remedial investigation/feasibility study (RI/FS) and implementation of the remedial action and, where necessary, as a component of the completed remedy. The use of institutional controls shall not substitute for active response measures (e.g., treatment and/or containment of source material, restoration of ground waters to their beneficial uses) as the sole remedy unless such active measures are determined not to be practicable, based on the balancing of trade-offs among alternatives that is conducted during the selection of remedy. Visual inspections of cover material will be conducted and documented over a 5 year period (the first, third, and fifth years) to check that no erosion of the cover is occurring. After the last inspection, a 5-year review will be conducted to review the results of the inspections. If the cover material has remained in good condition, no further inspections will be required. Due to the close proximity and similar historical activities of IRP Sites SS-007 and SS-009, the maintenance and inspection program for IRP Site SS-007 has been incorporated into the maintenance and inspection program for IRP Site SS-009. Gretchen Pikul
6/20/2001 Site Visit Site visits/inspections new 611th project manager were performed in June 2001 in accordance with the signed Record of Decision. Inspection letter reports are anticipated Winter 2001. Institutional Controls are being developed with ADEC input and approval. ADEC received CD copy of Tatalina LRRS Administrative Record (dated April 2001) Disk 1. Gretchen Pikul
6/20/2001 Meeting or Teleconference Held A public meeting was held in June to discuss upcoming work, and the signed Record of Decisions for 7 sites. Gretchen Pikul
10/10/2001 Site Visit Air Force field visit and work (including land surveys for institutional controls required by Decision Documents) delayed until mid-September due to in-house crew work conflicts (August 9, 2001); delayed to October due to September 11th terrorist attacks (September 17, 2001); was cancelled for this field season due to bad weather and impassable road conditions (October 10, 2001); field work is scheduled for FY02. ADEC received final Clean Sweep Environmental Survey Report (dated September 2001). Gretchen Pikul
10/19/2001 Meeting or Teleconference Held ADEC particpated in a community meeting in Takotna with Air Force. Gretchen Pikul
3/4/2002 Update or Other Action Final Environmental Assessment for Property Disposal (dated August 1997, received on March 4, 2002). Gretchen Pikul
6/7/2002 Meeting or Teleconference Held Site visit, inspections, and meetings at facility with Air Force. Public meeting with Takotna community on June 3, 2002. Gretchen Pikul
6/11/2002 Document, Report, or Work plan Review - other ADEC and Air Force meeting on 2002 field work and work plan; draft work plan dated April 2002 and received on April 19, 2002; comment resolution meeting on April 30, 2002; 2nd draft work plan received May 9 and 10, 2002; 3rd draft received May 28, 2002; 4th draft received on and comment resolution meeting on June 4, 2002; ADEC approval letter dated June 11, 2002. Gretchen Pikul
5/31/2003 Meeting or Teleconference Held ADEC participated in a public meeting at Takotna and site visits for 2003 field work and general inspections. Gretchen Pikul
9/25/2003 Document, Report, or Work plan Review - other The Alaska Department of Environmental Conservation (ADEC), DoD Oversight group, received the Remedial Action and Monitoring Program, Final Report (dated April 2003) on May 2, 2003. The Draft Annual Report, Remedial Action and Monitoring Program (dated November 2002) was received on December 9, 2002; the ADEC comment letter is dated February 5, 2003. The Air Force Comment Response was received on February 19, 2003, the ADEC reviewed the Comment Response and suggested a comment resolution meeting; the comment resolution meeting was held on March 17, 2003. The draft final report was received on April 3, 2003 via e-mail. ADEC conducted a cursory review and forwarded an e-mail on April 16, 2003 with comments that had not been revised as stated in the Comment Response. Numerous conversations, e-mails, and letters took place from the initial draft report to September 2003. The following are revisions, which were stated in the Comment Response to be made in this final report, have not been made. Based on the incorporation of these revisions below within the final report, the ADEC concurs with the contents of this document. Please note that the ADEC review and concurrence on this document is to ensure that the work is done in accordance with State of Alaska environmental conservation laws and regulations. While the ADEC may comment on other state and federal laws and regulations, our concurrence on this document does not relieve responsible persons from the need to comply with other applicable laws and regulations. 1. ADEC Comment #1 - Appendix D (Water Sampling Forms) and F (Soil Boring Logs) are unreadable; please insert a readable copy within the final report. Please note that electronic forms of Appendices C – H are not included within the final CD which are necessary when updating the Administrative Record CD. 2. ADEC Comment #8 – Table 1.3 presents Sample # 52063028103 with an incorrect analytical result for cadmium at 27.8 mg/kg instead of 0.432 mg/kg. Table 1.4 groundwater cleanup level is shown as 0.002 µg/L when the correct level is 0.002 mg/L. Table 1.7 barium result for the stream sample has an ORNL screening level of 4 µg/L. The groundwater cleanup level for 1,1 Dichloromethane is 0.007 mg/L. Table 1.9 does not have results presented for Sample # 52063028056. Table 1.9 presents an incorrect cleanup level (Tech Memo 01-007) for Sample #s 52063028144 and 153 of 1,2,4-trimethylbenzene at 92.2 mg/kg for the inhalation pathway instead of 1 mg/kg for the inhalation pathway; the sample result for Sample # 52063028144 should be bold since the cleanup level has been exceeded. Table 1.9 does not include a cleanup level for chloroform under Sample # 52063028070. Table 1.9 provides a soil cleanup level for comparison to the liquid equipment blank Sample # 52063028190. Table 2.1 has incorrect surface water standards and benchmark criteria for arsenic, barium, chromium, lead, mercury, and 4,4’-DDT. Also the word ‘soil’ in the footnotes should be corrected to ‘sediment.’ 3. ADEC Comment #9 – A reference to the photographs taken of these sites during the inspections should be noted in the text and the photographs attached in the appendices; no notation or photographs were attached. ADEC and Air Force project managers performed site cover inspections on June 19, 2001 at LF-010, SS-009, SS-007, SS-008, SS-001, DP-005, and OT-012. Observations included some depressions and holes within the cover. As requested, please note whether maintenance was conducted in 2002. 4. ADEC Comment #15, bullet 5 – It is stated that the drums had no visible markings or labels. Visible markings and labels were observed and photographed by the ADEC and Air Force in June 1998 and 2001 during site inspections, hence the request for and acknowledgement of drum markings and labels in the final work plan for this project. 5. ADEC Comment #34, bullet 11 - The listed analysis for sample 52063028097 is ‘PID/FID’ whereas the analytical data sheets provide GRO (8021), DRO, and RRO; no correction was made. 6. ADEC Comment #34, bullet 14 - Sample 52063028127 has no analytes listed, however, based on the analytical data sheets the sample was tested for GRO (8021), DRO, RRO, PCB/pesticide, 8260, 8270, and metals; no correction was made. Gretchen Pikul
11/4/2003 Update or Other Action 2002 Annual Report, Remedial Action and Monitoring Program; draft dated November 2002 and received December 9, 2002; ADEC comment letter dated February 5, 2003; Air Force response to comments received on February 19 and ADEC response sent on February 21; comment resolution meeting on March 17, 2003; draft final received on April 3, 2003; ADEC commented via e-mail on April 16, 2003; final dated April 2003 and received May 2, 2003; ADEC conditional approval letter dated September 25, 2003; final report received October 27, 2003 and CD on November 4, 2003. Gretchen Pikul
8/29/2005 Meeting or Teleconference Held ADEC and Air Force project managers conducted a site visit to Tatalina LRRS from August 23 to August 26, 2005. The purpose of this visit was to provide an opportunity to view and to discuss the status of ongoing contaminated sites work being performed by the Air Force. Jeff Norberg
9/15/2005 Institutional Control Record Established Institutional controls for SS-09 established in Base General Plan restricting excavation and surface grading at the site. See notation on 17 Jan 2001 regarding residual contaminaton left in place. Jeff Norberg
12/28/2005 Update or Other Action Five Year Review received for IRP Sites DP-005, LF-010, OT-012, SS-001, SS-007, and SS-009. The triggering action for the review is the signing of the Record of Decision (ROD) document for Site SS-009 on January 17, 2001. The five-year review is required because potentially hazardous debris or substances may remain buried at the site above levels that allow for unlimidted use and unrestricted exposure. Site SS-009 is the former Truck Fill Stand location on the eastern side of the large flat gravel pad along the former road east of the former garage. No contamidnants of concern or contaminants of ecological concern were identified in the subsurface soil samples evaluated in the Baseline Risk Assessments for Site SS-009. Analytical data from groundwater and from seep and sediment samples downgradient of Site S5-009 confirm that petroleum contamdination has not migrated through the pad to groundwater or to surface water pathways in the area. Pesticides were detected in the one sediment sample at elevated concentrations, and they were retained as contaminants of ecological concern. The source of these contaminants is likely historical usage of pesticides in the drainage area upgradient to the sampling point. The Ecological Risk Assessment concluded that the pesticides retained as contaminants of ecological concern are not expected to adversely affect the ecosystem and do not warrant remedial action. On the basis of the 1997 RI and Risk Assessments conducted at Site SS-009, there is no need for further remedial action at Site 5S-009. This determination was found to be protective of human health and the environment and in compliance with applicable or relevant and appropriate requirements (ARARs) established for Site SS-009. To ensure the existing cover material remained intact, visual inspections were scheduled to be conducted and documented at Site SS-009 every other year for 5 years. The inspections were to verify that healthy vegetation existed and no erosion of the cover was occurring. IfI at the end of five years the cover material remained in good shape at Site SS-009, no further inspections would be required. Inspections at Site SS-009 were conducted on August 8, 2004 by Montgomery Watson and again on August 23, 2005, by Matt Flynn/CH2M HILL and Stacey Re/CH2M HILL, Todd Fickel/61lth CES, and Jeff Norberg/ADEC (Appendix A, Site Inspection Reports). The purpose of the inspections was to assess the protectiveness and integrity of the landfill soil material cover. Land use controls (also known as institutional controls) were evaluated by verifying their existence within the Tatalina Base General Plan and their location presented on the Tatalina Base Map. The institutional controls that are in place include restrictions on excavating and surface grading at the site. No activities were observed during the SIs that would have violated the land use controls. The soil material cover covering the buried debris was intact, undisturbed, and has naturally revegetated. With the successful completion of this five-year review, no further five-year reviews are required for Site SS-009. If future land use changes or physical impacts to the landfill soilI material covers have occurred, future five-year reviews may be required. Jeff Norberg
1/30/2006 CERCLA ROD Periodic Review Five-Year Review – Installation Restoration Sites DP-005, LF-010, OT-012, SS-001, SS-007, and SS-009; Final dated November 2005 received December 28, 2005; ADEC issued approval letter on January 30, 2006. The Alaska Department of Environmental Conservation (ADEC), Federal Facilities Oversight group, received the Five-Year Review of Installation Restoration Program Sites DP-005; LF-010; OT-012; SS-001; SS-007; and SS-009 Tatalina LRRS, Alaska (dated November 2005) on December 28, 2005. ADEC have completed our review and concur with the contents of this document, with the following exception. The Protectiveness Statement within Section 5.8 indicates that “no contaminants of concern exist at SS-001” and “there is no need for further remedial action.” As stipulated in the ROD for Site SS-001, “petroleum contaminated soil adjacent to the MAR facility has not been fully delineated due to the risk of compromising the structural integrity of the MAR facility. When the current MAR facility is decommissioned and removed in the future, the extent of subsurface contamination remaining beneath the building will be assessed to determine if remedial action is necessary.” Although summarized in Section 5.3, this information should also be emphasized in Section 5.8. Please note that the ADEC review and concurrence on this document is to ensure that the work is done in accordance with State of Alaska environmental conservation laws and regulations. While the ADEC may comment on other state and federal laws and regulations, our concurrence on this document does not relieve responsible persons from the need to comply with other applicable laws and regulations. Thank you for providing a copy of the Five-Year Review of Installation Restoration Program Sites DP-005; LF-010; OT-012; SS-001; SS-007; and SS-009 Tatalina LRRS, Alaska. Jeff Norberg
1/30/2006 Long Term Monitoring Complete In accordance with the ROD for this site and based on the results of the Five-Year Review, no further cap inspections are required unless physical impact to the soil cap is identified in the future that may pose a risk to human or ecological receptors. Jeff Norberg
2/1/2006 Update or Other Action File number issued 2655.38.015. Aggie Blandford
6/14/2013 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 73833 name: auto-generated pm edit Tatalina LRRS SS09 Louis Howard
3/18/2015 Institutional Control Update One of several sites with Land Use Controls in effect (LUC Mgt Plan 2015 Pacific Air Forces Regional Support Center Installations, JBER, AK) March 13, 2015. In addition to ICs established as part of LUCs of the ERP for landfill sites with LUCs in effect, both ERP landfill & non-ERP landfill sites in Alaska under the management of PRSC must also comply with regulations set forth by the ADEC solid waste regulations in 18 AAC 60. Furthermore, landfill sites under the management of PRSC but not categorized as an ERP site must also comply with ADEC 18 AAC 60. Table 1-3 describes PRSC non-ERP landfill sites. Landfills are defined in 18 AAC 60 as “an area of land, or an excavation in which solid wastes are placed for permanent disposal, & that is not an application site, injection well, reserve pit, or waste pile.” This definition applies to most PRSC ERP & non-ERP sites in Alaska designated as landfills, dumps, or caches. Small PRSC ERP & non-ERP landfill sites at remote installations, such as the long-range radar stations, are regulated as Class III landfills as defined by ADEC. General requirements to manage landfills in place are established by ADEC & included in Table 2-2. However, alternative criteria can & often are adopted through negotiation with ADEC (see 18 AAC 60.900, Waivers). Post-closure notification requirements for Class III landfills, including notifications to ADEC & to potential future landowners, are summarized in Table 2-3. Tables 2-2 & 2-3 both generally assume the subject landfill is closed, has been reasonably well characterized, & a monitoring program for media of concern has been established & approved by ADEC. Tatalina LRRS Hardfill No. 2, Morrison-Knudsen Debris Area, Northeast Landfill DP005 Tatalina LRRS Landfill No. 2 LF004 Tatalina LRRS WAA No. 2 & Upper Landfill No. 1 LF010 Tatalina LRRS Former WACS Facility OT012 Tatalina LRRS Minimally Attended Radar Site SS001 Tatalina LRRS Barge Landing & Fuel Storage Area SS002 Tatalina LRRS Spill/Leak No. 1, 2 ,3, 4, Lower Camp Former T/F SS003 Tatalina LRRS WAA No. 3 SS007 Tatalina LRRS WAA No. 4 SS008 Tatalina LRRS Former Truck Fill Station SS009 Tatalina LRRS WAA No. 1 SS011 LUC_RESTRICTION Institutional control in the form of notice in land records will be developed by the Air Force, with ADEC concurrence, for waste left in place and within a base master plan. The State of Alaska supports and concurs with the selected remedy of no further action. Visual inspections of cover material will be conducted and documented over a 5 year period (the first, third, and fifth years) to check that healthy vegetation exists and no erosion of the cover is occurring. After the last inspection, a 5-year review will be conducted to review the results of the inspections. If the cover material has remained in good condition, no further inspections will be required. The institutional controls that are in place include restrictions on excavating and surface grading at the site. Louis Howard
2/3/2021 Update or Other Action Bulk action entry - all Tatalina LRRS sites x-referenced with the general file, 2655.38.001, on this date. Cascade Galasso-Irish

Contaminant Information

Name Level Description Media Comments

Control Type

Type Details
Land Use Plan / Maps / Base Master Plan Visual inspections of cover material have been conducted and documented over a 5 year period to check that healthy vegetation exists and no erosion of the cover is occurring. A 5-year review was conducted in 2005 to review the results of the inspections; Draft document received on 28 December 2005. Based on the ROD for this site if the cover material has remained in good condition, no further inspections will be required. Final decision on inspection is pending.

Requirements

Description Details
Excavation / Soil Movement Restrictions Institutional Controls within the 2005 version of the Base General Plan prohibit the excavation and surface grading of this site. This decision is based on dump debris left in place. Technical memorandums generated following visual inspections of cover material as stipulated by the ROD signed in Jan 2001 after the first, third, and fifth years. 5-year review of site conducted during 2005; Draft submitted 28 December 2005.

No associated sites were found.

Missing Location Data

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