| Action Date |
Action |
Description |
DEC Staff |
| 7/21/1993 |
Update or Other Action |
Final Underground Storage Tank Removal Work Plan (dated July 21, 1993), contents MOGAS. . |
John Halverson |
| 8/4/1993 |
Document, Report, or Work plan Review - other |
ADEC (John Halverson) SCRO CS Programs sent letter to Leo Remiger 11 CEOS/CEOR Re: Tatalina Long Range Radar Site; Underground Storage Tank (UST) Removal Work Plan, July 21, 1993.
We received the plan referenced above on July 27, 1993. The Department has no objection to
implementing the plan as proposed with the condition that all underground piping associated with
the UST be removed and appropriate field screening be conducted along the pipe trenches. If for
some reason the piping can not be removed, please contact me so we can discuss plans for
assessing areas beneath the piping.
Please note, a post closure notice (copy enclosed) and a site assessment report must be submitted following the closure. I have enclosed a copy of a Site Assessment/Release Investigation Report Summary Form to assist you in preparation of the site assessment report. Also , if petroleum contaminated soil is identified during the closure, it must be contained in accordance with the guidance for storage, remediation and disposal of petroleum contaminated soils contained in the guidance manual for Alaska's Underground Storage Tank Regulations or in a manner that it more protective of the surrounding environment. |
John Halverson |
| 11/2/1993 |
Site Added to Database |
|
Former Staff |
| 11/2/1993 |
Leaking Underground Storage Tank Release Confirmed - Petroleum |
LUST Site created in CSP for source area ID 75825 ADD; |
Former Staff |
| 11/8/1993 |
Update or Other Action |
Tank Closure report for Bldg 3065 UST Tank# 3065-1 275 gallon MOGAS UST removed during October 27, - November 8, 1993 site assessment performed by Carl Hornig & Lynn Olson Geologist & closure was performed by James Smith (UST lic# AA260), all were with 11 CEOS/CEOR.
The 11 CEOS/CEOR, at the request of 11 CEOS/CEVR, removed a 275-gallon fuel tank located at Tatalina LRRS at the base of Takotna Mountain, 14 miles west of McGrath AK. UST closure operations for this project consisted of initial assessment, source removal, & disposition of tank & contaminated soil. Closure was accomplished in accordance with state Regulation 18 AAC 78.090, & cleaning was accomplished on site in accordance with the work plan submitted to the ADEC.
The initial assessment, Appendix D, included field screening, laboratory sample collection, & documentation of actual site conditions. Photoionization detector (PID) values ranged from 0 to 247 ppm with the highest readings coming from soils immediately below the tank bottom. Laboratory analysis for gasoline range organics (GRO) indicated levels in excess of those permitted by a Level B cleanup under 18 AAC 78.315c.
A total of 19 laboratory samples were collected, including those taken for quality control. Data deliverables are included as Appendix F. Water samples were obtained from both the cistern prior to filtering & the kitchen tap in the residential dome after filtering. Groundwater was encountered during excavation & likewise sampled, analyzed by Environmental Protection Agency (EPA) Method 502.2, & found to be free of contaminants.
Source removal consisted of pumping contents of the tank into overpacks, excavating the overburden, & removing the tank & associated piping. Approximately 200 gallons of water & 65 gallons of gasoline were pumped from the tank prior to removal. Between 65-70 cubic yards of soil & weathered rock were removed & temporarily placed on a plastic sheet during the process of tank removal.
Soils yielding PID values greater than five ppm were considered to be contaminated &, as such, were segregated from clean material. Approximately 70 cubic yards of soil & weathered rock were removed from the pit & placed on a plastic sheet during the process of tank removal. A contaminated soil containment cell was subsequently constructed near the landfill location & the soil was transferred to the cell.
Permafrost is present within a few feet of ground surface at the upper camp. The existence & extent of permafrost at the lower camp is uncertain. Regionally, the area is generally underlain by relatively thick lenses of permafrost reported to be present primarily in fine-grained sediments. The mean annual precipitation is 14.96 inches.
Soil was field screened & laboratory samples were taken at the same time the tank was removed. The tank was then cleaned & cut into four sections for shipment to DRMO. Soils were further screened for POL contamination in order to determine the limits of excavation necessary to remove all contaminants.
At the interface of the overburden & the underlying bedrock, a confined aquifer was encountered (9.5' bgs) as evidenced by the upwelling of groundwater in the pit bottom. A laboratory sample was collected & analyzed by EPA Method 502.2 for drinking water. When field screening indicated the remaining material was free of POL contamination, three closure samples were taken to verify cleanup levels had been met. The final step was to backfill the pit with clean fill & bring to grade.
Excavation Samples: A total of six discrete samples (excluding duplicates and trip blanks) were taken at the time of tank removal. Analytical results indicate the primary contaminants in the soil to be GRO and lead.
Only one sample exceeded the limits of 100 ppm GRO for Level B on the matrix score sheet. All six samples exceeded the 5 ppm allowable for lead in soil. All other parameters were found to be within allowable limits.
Closure Pit Samples: Three samples were collected from the pit after excavation was complete (32054938017, -018, and -019). These were analyzed for diesel range organics and BTEX and
found to be well below maximum allowable limits for Level B cleanup values.
Groundwater Sample: One sample of water, thought to emmanate from a local perched water table, was collected and sent for analysis. Results for all parameters were below minimum
detection limits. |
John Halverson |
| 11/15/1993 |
Leaking Underground Storage Tank Cleanup Initiated - Petroleum |
LCAU; |
Former Staff |
| 11/15/1993 |
Update or Other Action |
ADEC sent a Notice of Release / Request for Corrective Action, Facility ID# 3065, Spill # 93-2-5-00-306-61. On November 2, 1993, ADEC received a report that gasoline contaminated soil was discovered during closure of a regulated UST. Letter was generated by John Halverson, Leaking UST Program, and directed to Garrett Beals. |
John Halverson |
| 2/28/1994 |
Update or Other Action |
Tank Closure Report Wellhouse UST (cover letter dated February 28, 1994). The 11 CEOS/CEOR, at the request of 11 CEOS/CEVR, removed a 275-gallon fuel tank located at Tatalina LRRS at the base of Takotna Mountain, 14 miles west of McGrath AK. Underground storage tank (UST) closure operations for this project consisted of initial assessment, source removal, & disposition of tank & contaminated soil. Closure was accomplished in accordance with state Regulation 18 AAC 78.090, & cleaning was accomplished on site in accordance with the work plan submitted to the Alaska Department of Environmental Conservation (ADEC). Notice of closure for the UST was provided to ADEC on 27 Jul 93, along with the Statement of Work (SOW). Permission was given to proceed on 4 Aug 93 by Mr. John Halverson of the Southcentral Regional Office of ADEC.
The initial assessment, Appendix D, included field screening, laboratory sample collection, & documentation of actual site conditions. PID values ranged from 0 to 247 ppm with the highest readings coming from soils immediately below the tank bottom. Laboratory analysis for gasoline range organics (GRO) indicated levels in excess of those permitted by a Level B cleanup under 18 AAC 78.315c.
A total of 19 laboratory samples were collected, including those taken for quality control. Water samples were obtained from both the cistern prior to filtering & the kitchen tap in the residential dome after filtering. GW was encountered during excavation & likewise sampled, analyzed by Environmental Protection Agency (EPA) Method 502.2, & found to be free of contaminants.
Source removal consisted of pumping contents of the tank into overpacks, excavating the overburden, & removing the tank & associated piping. Approximately 200 gallons of water & 65 gallons of gasoline were pumped from the tank prior to removal. Between 65-70 cy of soil & weathered rock were removed & temporarily placed on a plastic sheet during the process of tank removal.
Soils yielding PID values greater than five ppm were considered to be contaminated &, as such, were segregated from clean material. Approximately 70 cy of soil & weathered rock were removed from the pit & placed on a plastic sheet during the process of tank removal. A contaminated soil containment cell was subsequently constructed near the landfill location & the soil was transferred to the cell.
Materials not returned to the excavation consisted of the tank, associated piping, & cleaning residues consisting primarily of polypropylene absorbents used to clean the tank interior prior to shipping. The gasoline & water pumped from the tank prior to removal was overpacked & staged for subsequent barge shipment to Defense Reutilization & Marketing Office (DRMO) at Elmendorf AFB. Final action at the site was to backfill with clean soil & bring the surface to grade.
The 275-gallon UST has no history of spills, leaks, or releases. The tank was removed because it was abandoned in place & was excess to current needs. In Apr 82, the gasoline engine powered gallery pump was replaced by an electrical system.
The complete matrix score for this site is 37 points, which allows for a cleanup level to 200 ppm diesel fuel in soil. As shown from the analytical results, most soils removed during field operations exceed this value.
A Thermoenvironmental photoionization detector (PID), Model 580B with a 10.2 eV lamp (+/-) source, was used to screen soils for the presence of volatile petroleum hydrocarbons.
Soils were further screened for POL contamination in order to determine the limits of excavation necessary to remove all contaminants. At the interface of the overburden & the underlying bedrock, a confined aquifer was encountered as evidenced by the upwelling of groundwater in the pit bottom. A laboratory sample was collected & analyzed by EPA Method 502.2 for drinking water.
When field screening indicated the remaining material was free of POL contamination, three closure samples were taken to verify cleanup levels had been met. The final step was to
backfill the pit with clean fill & bring to grade.
Soil removed from the excavation & temporarily placed on plastic liners was trucked from the site & placed into the contaminated soil containment cell constructed near the landfill.
Four grab samples were obtained from surrounding soils during the tank removal. Three closure samples were collected after the remaining soils were field screened & excavated until
PID values registered less than 5 ppm. In addition, two trip blanks, one water & one soil, were furnished to the laboratory for identical analyses for that matrix.
For additional information see site file. |
Ray Burger |
| 2/28/1994 |
Update or Other Action |
Tank Closure Report Wellhouse UST (cover letter dated February 28, 1994). |
Ray Burger |
| 4/19/1994 |
Document, Report, or Work plan Review - other |
Letter to Joseph Millhouse Dept. of Air Force, 11 CEOS/CEOR RE: Tank Closure report, Wellhouse UST Facility ID # 769, UST # 3065-1, Spill #93-2-5-00-306-61 (Tank site is mentioned in CS DB 199725X104331 Tatalina LRRS SS08 WAA #4). ADEC received the report on March 1, 1994. It summarized closure of a 275 gallon UST. Approximately 70 cubic yards of petroleum impacted soil were excavated and placed in a containment cell near the landfill.
Section 4.0 of the report should contain a sub-section describing the field screening and analytical results. A table should be included which clearly shows the sample number, sample matrix, sample depth or location, field screening results and analytical results and any qualifiers on the data. Section 4.3 states closure samples were analyzed for DRO and BTEX. Since gasoline is the contaminant of concern, samples should have been analyzed for GRO and BTEX, which in fact appears to be the case. Reference to DRO appears to be an error. Lab report for samples from the drinking water show lead was non-detectable at 1.0 mg/L. Since the drinking water standard for lead is in the low part per billion (ug/L) range, please check to see if the units are correct.
System configuration - It is unclear how much of the former lines were located underground. The diagrams should clearly show the location of all underground piping along the tank and the location of all field screening and sample points.
QA/QC-The Quality Control summary shows some of the data quality objectives were not met. However, no discussion or explanation of how this effects the usability of the data included in the report. The department requests clarification of this issue. It appears that holding times and sample preservation temperatures were exceeded on the confirmation samples. If this is the case the samples were not valid. Studies have shown that exceeding holding times and allowable sample temperatures significantly affects analytical results. The department requests clarification of the usability of the data. |
Ray Burger |
| 8/14/1996 |
Release Investigation |
ADEC received a copy of the release investigation report. Release investigation was conducted by ACCI on 9/19/94. Release investigation covered soil and water sample collection from former 275-gallon gasoline UST excavation and soil sampling of the 70 cy soil stockpile generated during the UST closure. |
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 |
| 12/21/1999 |
Update or Other Action |
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, and summary and decisions specifically for this site include: "Tank 769-4. ADEC issued a no further action for this UST on July 28, 1999.
As part of the August 1999 investigative work, the Air Force was asked to inspect the 70 cubic yards stockpile associated with this tank closure to see if other soils were added to it. The report indicates that stockpile is 24 feet wide by 33 feet long by 2.25 feet, containing approximately 70 cubic yards. ADEC has determined the stockpiled soil is not a threat to the environment and recommends the stockpile be dismantled and the soils placed in non-environmentally sensitive areas." |
Gretchen Pikul |
| 4/26/2002 |
Update or Other Action |
ADEC completed its review of the 1994 release investigation report. Based on laboratory data contained in the report, the Department issued a No Further Action letter, and closed out the LUST site. |
Gretchen Pikul |
| 4/26/2002 |
Site Closure Approved |
Closure action added 11/3/15 during data quality review |
Mitzi Read |
| 1/31/2012 |
Update or Other Action |
Preliminary Assessment/Site Inspection (PA/SI) for Multiple Pacific Air Forces (PACAF)
Installations, Air Force Center for Engineering & the Environment (AFCEE) Contract FA8903-08-D-8769, Task Order (TO) 0314 received for review & comment for multiple facilities including: Tatalina LRRS: CSP File No. 2655.38.017; LUST Source Area ID 75825 & Tatalina LRRS: CSP File No. 2655.38.017; LUST Source Area ID 75825
Two types of investigations will be conducted:
• PA: The PA is a limited-scope investigation with the objective of collecting & reviewing readily available information & conducting a site & environs reconnaissance to identify the potential for environmental contamination from past & present activities. The PA compiles site-specific information, including operational history, product release records, past environmental investigations, types of waste & hazardous substances present, ID of sensitive environments, ID of exposure routes (migration pathways), & ID of potential receptors. The PA is intended to distinguish between sites that pose little or no threat to human health & the environment & sites that require further investigation.
• SI: The SI is a limited field investigation with the objective of confirming the presence or absence of contamination. Limited soil & GW sampling will be performed at each site at each installation where potential environmental contamination is suspected, contamination has been reported, or both. The objective of the soil & GW sampling will be to confirm the presence or absence of contamination.
A site reconnaissance in October 2011 was not conducted at Indian Mountain LRRS & Tatalina LRRS because of poor weather conditions. A site reconnaissance will be conducted in conjunction with the field investigation later at these two installations.
3 sample locations will be sampled, surface soil: (0-2' bgs) Samples (1 per location), subsurface soil: (> 2' bgs) Samples (3 per boring), Total 4 samples per boring. Analyses: GRO AK101, DRO/RRO AK102/AK103, VOCs 8260C, SVOCs 8270D, Metals 6020A/7471A. GW samples: 1 per boring, Analyses: GRO, AK101, DRO/RRO AK102/AK103, VOCs 8260C, SVOCs 8270D, & Metals 6020A/7470A.
1996 UST Release Investigation Report
The report stated that in October & November of 1993, the 11 CEOS/CEOR removed & closed out the 275-gallon gasoline UST associated with the water gallery pump. This description matches Tank 4, a regulated tank, identified in the ADEC UST Facility Report for Tatalina (ADEC, 2011). The owner identification number was 3065 (probably Building 3065), & the tank was identified as an asphalt-coated or bare-steel, 275-gallon UST storing gasoline.
The tank was reportedly installed on May 1, 1971; the date of removal is not listed, although the tank is listed as removed from the ground (AFCEE, 2011). The 611 CES/CEVR indicated that gasoline-contaminated soil had been found. 70 cyds of soil were excavated & stockpiled in containment near the onsite landfill. The UST had been buried with 2’ of cover material, & the tank floor was an additional 5’ deep (7’ bgs).
During the 1996 investigation, a total of four borings were placed in downgradient & upgradient locations around the former location of the UST, with one boring located in the center of the backfilled excavation. At the time, GW flow was assumed to be parallel with the adjacent stream. The site geology was noted to be generally clayey gravels & sand with a perched water table at 10 feet bgs & GW at 17 feet bgs.
The analytical results for the soil samples collected from the borings indicated that contamination was below method detection limits (MDLs) for GRO in all but one sample collected from 5 feet bgs at the center of the UST location (with a result of 6.8 milligrams per kilogram [mg/kg]). The ADEC Level A action level for cleanup at the time was 50 mg/kg. Most samples were below MDLs for BTEX.
Samples that were reported with measurable quantities of total BTEX were well below ADEC’s most stringent cleanup level (Level A) of 10 ppm. The highest reported BTEX was 0.097 mg/kg for toluene & 0.026 mg/kg for benzene (from the same sample where GRO was recorded at 6.8 mg/kg). Lead levels did not exceed background levels. The report concluded that the boring sample results from this assessment indicated that the volume of soil contamination associated with the removed UST to be minimal.
The 70-cubic-yard contaminated soil stockpile was uncovered, & samples were collected in nine locations & then composited into three samples (three locations to each sample) to quantify the average level of contamination in the pile. Analytical results for the soil stockpile samples were below the MDL for GRO. One sample had low levels of toluene (0.06 mg/kg) & xylenes (0.049 mg/kg). The lead samples were reported to be within the natural (background) range of soil.
For additional information see site file. |
Louis Howard |
| 3/7/2012 |
Document, Report, or Work plan Review - other |
Review comments on the Work Plan for Preliminary Assessments/Site Inspections for Cape Newenham, Cape Lisburne, Indian Mountain, and Tatalina Long Range Radar Stations, and King Salmon Air Station AFCEE Contract FA8903-08-D-8769, Task Order 314. As the majority of this work deals with underground storage tanks, the Air Force shall comply with the ADEC’s UST Procedure Manual (November 2002) and the appendices of the manual.
The manual outlines the standard operating procedures, quality control procedures, and data quality objectives for regulated underground storage tank (UST) site characterizations, site assessments, release investigations, and corrective actions. It directs the collection, interpretation, and reporting of data. This data will enable tank owners and operators and ADEC to evaluate the presence, degree, and extent of any groundwater, surface water, and soil contamination and to determine if further action is necessary.
Applied Sciences Laboratory (ASL) is not on the ADEC approved CS laboratories list http://dec.alaska.gov/applications/eh/ehllabreports/USTLabs.aspx
A search of the list for Oregon based laboratories yielded CH2M Hill-Corvallis, OR (UST-079) on 1100 NE Circle Blvd which is not the same address as is provided for ASL at 2300 NW Walnut Blvd Corvallis, OR. ADEC requests a copy of ASL’s current ADEC approval letter that details the methods, matrices, and dates for which the lab has approval for.
The Air Force shall ensure the Laboratory Data Report contains the following items to be kept on file at the laboratory for ten (10) years after analysis:
The “raw” analytical data, e.g. bench sheets, chromatograms, calibration data, etc., are not required submittals, however, must be retained on file by the laboratory for at least ten years after the analysis date.
ADEC does not recognize, approve nor certify analytical method “AK102M”. Please delete all references to “AK102M” in the work plan text/tables and appendices.
Any modifications to the analytical standard operating procedures (SOPs) that were part of ADEC’s original approval letter for the laboratory to be “approved” will not be allowed by ADEC. For any modification to the approved method will require reevaluation and approval by ADEC PRIOR to fieldwork beginning.
Backup Laboratory Contact Information
Please be aware that TestAmerica, Arvada CO (UST-030) approval expires April 5, 2012 prior to May 2012 when the fieldwork is scheduled to begin.
Soil sampling will not be done in accordance with SOP-8 where sodium bisulfate/water preservative is referenced for BTEX, GRO, VOCs.
ADEC requires methanol field preservation of all volatile samples (BTEX, GRO, VOCs/8260C). Sodium bisulfate/water preservative is not acceptable. Additionally, AK101 requires a minimum of 25g of soil to 25 ml of methanol. The other methods generally follow this procedure also (e.g. BTEX, 8260’s). The Air Force needs to reference and follow the ADEC Draft Field Sampling Guidance.
ADEC would only approve the low level VOC collection/analysis for specific contaminants (like vinyl chloride) where the methanol detection limits cannot meet our migration to groundwater cleanup levels. For standard VOCs (i.e. BTEX), methanol should meet cleanup levels, if not then the Air Force needs to use the services of a laboratory that can achieve our cleanup levels.
Multi-incremental sampling by the Air Force will require submittal of a separate work plan written in accordance with ADEC's Draft Guidance on Multi Increment* Soil Sampling (March 2009). *MULTI INCREMENT® is a registered trademark of EnviroStat, Inc. |
Louis Howard |
| 5/16/2012 |
Update or Other Action |
Staff reviewed and approved the final work plan for multi-site work plan with regards to Tatalina LRRS. |
Louis Howard |
| 1/30/2013 |
Update or Other Action |
Draft Preliminary Assessment/Site Inspection (PA/SI) received. The 611th Civil Engineer Squadron/Assessment Management Flight, Environmental Restoration Section (611 CES/CEAR) at Joint Base Elmendorf-Richardson (JBER), Alaska, and the Air Force Civil Engineer Center (AFCEC)
have completed this Preliminary Assessment/Site Inspection (PA/SI) to evaluate potential releases of petroleum, oil, and lubricants (POL)-related hazardous substances, pollutants, or contaminants.
A visual site inspection of the site was completed on August 9, 2012, prior to intrusive
activities. During the site inspection, the site was examined for potential sources and signs of contamination and to confirm that the planned field sampling approach remained optimal. Available plans, reports, and drawings were reviewed and onsite personnel were interviewed to obtain site-specific background information.
Surface and subsurface soil, and groundwater samples were collected from three soil borings on August 10, 2012, in general accordance with the approved project WP. The samples of site soil and groundwater were collected and submitted to an offsite laboratory for analysis.
Concentrations of benzene, ethylene dibromide (EDB), and xylenes were detected above screening levels in subsurface soil outside of the understood excavation area for the former 275-gallon UST while the samples collected from within the excavation area yielded results below screening levels. This suggests that residual petroleum-affected soil may remain outside of the original excavation area. However, groundwater samples collected from each of the three borehole locations yielded results below screening levels for all analytes besides metals.
Concentrations of several total metals did exceed soil and groundwater screening levels. Given that known site activities would not be expected to contribute to higher concentrations of these metals, it is suspected that these results may be attributable to background or naturally occurring concentrations in soil and groundwater. However, data for background metals concentrations in soil were not readily available during this PA/SI, nor collected during this study for comparison. Furthermore, the groundwater was sampled from undeveloped driven probes and was highly turbid, which may have biased high the groundwater sample results for total metals.
Based on the results, additional soil investigation of the lateral and vertical extent of benzene, m- & p-xylene, and EDB-affected soil may be required. No additional groundwater investigation appears to be warranted. |
Louis Howard |
| 4/29/2013 |
Update or Other Action |
ADEC has received the final version of the PA/SI for Tatalina LRRS AFCEC Contract FA8903-08-D-8769 Task Order 314, on April 12, 2013. Upon review of the document it appears the document satisfactorily incorporated ADEC’s comments and ADEC approves the final document. |
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 |
