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Site Report: Six Mile Truck Shop

Site Name: Six Mile Truck Shop
Address: 1455 Richardson Highway, North Pole, AK 99705
File Number: 100.38.078
Hazard ID: 329
Status: Cleanup Complete
Staff: No Longer Assigned, 9074655229 dec.icunit@alaska.gov
Latitude: 64.800685
Longitude: -147.554880
Horizontal Datum:NAD27

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 Alaska Transformer Company (ATC) used the property as an electrical transformer reclamation center and heavy equipment maintenance facility between 1983 and 1988. In 1988 property ownership shifted to the Fairbanks North Star Borough and drums and transformers were abandoned and scattered throughout the site. The ADEC conducted initial characterization and waste disposal activities which removed drums and transformers from the site and identified a floor drain system and underground storage tank (UST) on the property. The property was purchased under a Prospective Purchaser Agreement (PPA) in 2004 and additional remediation including removal and closure of the floor drain system, excavation of the UST and contaminated soils, and confirmation soil sampling was completed by the landowner under this agreement. Final confirmation soil samples collected in 2020 indicated that all concentrations of contamination above the migration to groundwater cleanup levels had been removed during site remediation activities. A more detailed summary of site characterization and remediation activities that have been conducted at this site can be seen in the closure letter included in the Attachments section for this site. On-site ground water is contaminated with chlorinated solvent contaminated that originates from a hydraulically up-gradient and off-site source and is managed under the Six Mile Richardson Highway Groundwater Investigation site (Hazard ID 25660, ADEC File #102.38.112).

Action Information

Action Date Action Description DEC Staff
9/4/1987 Update or Other Action (Old R:Base Action Code = FI - Field Inspection (General)). Site inspection to determine compliance with TSCA. Violations included failure to mark PCB containers and storage and disposal areas. Former Staff
5/2/1988 Notice of Violation Notice of Violation regarding violations observed during site inspection. No response by responsible party. Administrative action dated 3/1/89 fined Alaska Transformer Company for violations of TSCA and failure to respond to the Notice of Violation. Former Staff
8/24/1989 Update or Other Action (Old R:Base Action Code = FI - Field Inspection (General)). Site inspection by R. Cormack. Reported 600 to 700 square feet of ground contaminated with what appeared to be waste oil near overhead door on west side of building. Considerable evidence of surface contamination near transformers on north side of building. Approximately 80 drums observed, mostly full of unknown liquids, possibly waste oil. Approximately 900 square feet of contaminated ground on the south side of the building. Rich Cormack
4/1/1990 Update or Other Action (Old R:Base Action Code = FI - Field Inspection (General)). Ecology and Environment sampled stained soil during April 1990 and found only a trace of PCBs. Also sampled liquid from a few drums on site and did not detect contamination. Former Staff
9/5/1990 Site Added to Database PCB contamination. Former Staff
10/11/1990 Preliminary Assessment Approved Ecology and Environment is conducting a preliminary assessment, but ADEC is performing the sampling. Former Staff
11/27/1990 Site Ranked Using the AHRM Initial ranking. Former Staff
7/1/1991 Preliminary Assessment Approved Determined that documented PCB soil contamination exists but levels are relatively low. Extent of contamination unknown. Major pathway of concern is groundwater. Recommends that further action under the CERCLA program not warranted. Former Staff
9/5/1991 Update or Other Action (Old R:Base Action Code = RAPR - Remedial Action Plan Review (CS)). Armstrong informed owner of CERCLA investigation and advised him that ADEC would conduct an additional assessment. Ed Armstrong
9/23/1991 Site Ranked Using the AHRM Second attempted ranking - unknown value. Former Staff
10/1/1992 Update or Other Action (Old R:Base Action Code = RECN - Site Reconnaissance (CS)). By Kalu. Kalu Kalu
1/7/1993 Update or Other Action (Old R:Base Action Code = RPL3 - RP Determined and Action Request). Sent PRP Notification letter to Bob Ziegler requesting letter of his intention to stabilize contamination on site and stating ADEC proposal for State Lead Cleanup using OHSRRF if necessary. Certified return receipt requested RP letter was received by party, but no response back as of 5-4-93. (RP) Kalu Kalu
2/16/1993 Site Ranked Using the AHRM Third attempt -still too many unknowns. Former Staff
2/23/1993 Update or Other Action (Old R:Base Action Code = RPL2 - Site Information Request Letter). Sent PRP-CS Database Notification Letter to RP requesting update and more environmental information. Letter was returned unclaimed. Previous owner Clyde Sherman sold to Bob Ziegler who sold site to Bill Beeman (has deed of trust), but now Ziegler wants to acquire Beeman's interest. ADEC Site Project Manager sent another letter informing Ziegler of States intent and requested action. Jeff Peterson
10/1/1993 Update or Other Action (Old R:Base Action Code = RPS - Responsible Party Search). RP wrote letter to ADEC without return address nor telephone number. Made on-site visit in hopes of locating RP. Barrier strung across driveway entrance and no one in sight. Did not enter property. Received permission to take photos from neighbor's property to the rear of site plus information which indicated RP was busy doing cleanup within recent months. Eleanor Hung
11/3/1993 Update or Other Action (Old R:Base Action Code = CORR - Correspondence (General)). Workplan submitted on behalf of Mr. Anderson will be implemented by Dames and Moore this field season. Kalu Kalu
4/28/1995 Update or Other Action Shannon and Wilson report Environmental Assessment McCall property identifies two potential TCE source areas: one on the Holder Property and the other close to the McCall/Holder property line. TCE and TCA detected in 6-Mile Truck Shop supply well. Douglas Bauer
10/31/1995 Long Term Monitoring Established Shannon and Wilson report Interim Report Six-Mile Groundwater Assessment identifies contaminated wells extending from the McCall/Holder properties to the northwest to Six-Mile Village Subdivision. TCE plume is 1.1 mile long, 1/4 mile wide, and 100 feet deep. TCA plume closely corresponds to TCE plume. Localized benzene plume in Six-Mile Village Subdivision. For both residential and monitoring wells, TCE detected in 51 wells, TCA in 40 wells, benzene in 19 wells. TCE at or above 70% MCL in 17 residential wells (additional two business wells above MCL) and benzene above MCL in 4 residential wells. Douglas Bauer
12/4/1995 Update or Other Action Agency for Toxic Substance and Disease Registry (ATSDR) conducts Health Consultation based on 10/31/1995 sampling results. Concurs with ADEC's short- and long-term goals. Douglas Bauer
1/15/1996 Update or Other Action ADEC provides $25,000 grant to Fairbanks North Star Borough for residential filter systems 17 impacted residents. Douglas Bauer
2/26/1996 Update or Other Action Four new monitoring wells, MW-17 through MW-20 installed on site. Douglas Bauer
3/1/1996 Site Ranked Using the AHRM Reranked using new data resulting from the investigation of area near Six-Mile Village. Former Staff
3/27/1996 Update or Other Action Seventeen residents who had either TCE or benzene above 3.5 ppb were provided up to $2500 grants from FNSB to upgrade or install filter systems. Douglas Bauer
11/27/1996 Update or Other Action Shannon and Wilson publishes Waste Inventory and Characterization and Release Discharge Investigation. Abandoned transformers, transformer casings, several hundred partially filled drums, and stained soil partially characterized prior to freeze up. Douglas Bauer
12/31/1996 Update or Other Action Shannon and Wilson Report Interim Report on Source Area Investigation identifies low concentration levels of PCE in soil and petroleum products in soil and groundwater during the installation of MW-21 in the northwest corner of the McCall property. Based on area-wide groundwater data, potential source areas identified near the McCall/Holder property line (TCE), on the Holder Property (TCE), on the Walsky property (TCE/TCA), and in the vicinity of the Walsky/6-Mile Truck Shop property line. Douglas Bauer
10/23/1997 Update or Other Action ATSDR issues a follow-up health consultation to 1995 study. ATSDR evaluated long-term monitoring data and still concurs with ADEC strategy. Recommends notifying residents to maintain filter systems. Douglas Bauer
7/29/1998 Update or Other Action Philip Services Corporation begins waste characterization of abandoned material (material identified in 1996 and new abandoned material). Douglas Bauer
8/21/1998 Interim Removal Action Approved ADEC assumes clean up of abandoned waste material and notifies Philip Services Corporation Corporations to perform removal action. Douglas Bauer
8/24/1998 Site Characterization Workplan Approved Shannon and Wilson, Inc. publishes final site characterization workplan as part of an area-wide investigation. Douglas Bauer
9/15/1998 Update or Other Action 102 drums of consolidated waste shipped off site. Empty barrels and transformers stacked south of main shop building atop a liner. Douglas Bauer
9/1/1999 Update or Other Action Shannon and Wilson begins re-sampling of residential wells in plume area. Douglas Bauer
10/16/1999 Update or Other Action Public workshop held to discuss potential remediation options for TCE sources on Holder property and TCE/TCA sources on Walsky property. Douglas Bauer
10/21/1999 Meeting or Teleconference Held Workshop material presented to Badger-Richardson Safe Water Association monthly meeting. Douglas Bauer
11/4/1999 Meeting or Teleconference Held Meeting to determine completion of site characterization. Access to property required to determine if interior shop floor drain is tied into septic system, possible trenching, and additional Geoprobing. Douglas Bauer
11/9/1999 Update or Other Action Key Bank controlling access to property as a result of a judgment against Wayne Anderson (deceased former occupant). Borgeson and Brown (Tom Manniello), at 452-1666, are representing Key Bank. Douglas Bauer
12/22/1999 Meeting or Teleconference Held Meeting with Shannon and Wilson. Field work will re-start in Spring 2000. Douglas Bauer
1/5/2000 Update or Other Action Shannon and Wilson's report of long-term groundwater monitoring and evaluation of natural attenuation issued. Copies mailed to Juneau and Anchorage offices. TCE concentration levels decreasing in some wells, remaining stable or slightly increasing in others. Some evidence that natural attenuation is occurring. Douglas Bauer
2/17/2000 Meeting or Teleconference Held Met with Badger-Richardson Safe Water Association board members Rick Van Hatten, Colleen Van Hatten, and Wayne Grieme. Discussed remedial alternative screening reports, $150 CIP request for AS/SVE feasibility studies for Walsky and Holder properties, long-term groundwater monitoring and natural attenuation evaluation report, and September 1999 residential well sampling report. Douglas Bauer
4/13/2000 Meeting or Teleconference Held Meeting with Shannon and Wilson to review upcoming field season work. Douglas Bauer
4/20/2000 Meeting or Teleconference Held Badger-Richardson Safe Water Association meeting to review PDC 60% report. Board requested clarification of response fund use for temporary hauled water. Douglas Bauer
5/30/2000 Update or Other Action Property in tax foreclosure. Tax Deed recorded this date. FNSB is the new landowner. Former Staff
1/5/2001 Update or Other Action Fact Sheet issued for area-wide TCE ground water plume. Douglas Bauer
2/5/2002 Update or Other Action Fact Sheet issued for area-wide TCE ground water plume. Douglas Bauer
7/10/2002 GIS Position Updated Changed the Latitude, Longitude, Method Accuracy, Accuracy and Unit fields. Heather Goldman
1/8/2003 Update or Other Action Fact Sheet to be issued for area-wide TCE ground water plume. Douglas Bauer
8/25/2003 Update or Other Action Tax foreclosure sale deed to Craig Mansfield. Douglas Bauer
1/21/2004 Update or Other Action Fact Sheet issued for area-wide TCE ground water plume. CS Site Summaries web-page will be updated soon. Douglas Bauer
9/14/2004 Update or Other Action Department of Law authorized signing of Prospective Purchase Agreement (PPA) between ADEC and Craig Mansfield. PPA between ADEC and Fairbanks North Star Borough signed in June 2000 for eventual tax foreclosure. Douglas Bauer
9/24/2004 Update or Other Action Craig Mansfield signs Prospective Purchase Agreement with ADEC. Douglas Bauer
10/13/2004 Update or Other Action Larry Dietrick signs Prospective Purchase Agreement for ADEC. Douglas Bauer
12/14/2004 Meeting or Teleconference Held A meeting was held with David McDowell, Mark Lockwood, and Jon Lindstrom to discuss future measures that could be performed by June 30, 2005. Douglas Bauer
12/28/2004 Update or Other Action Interim Summary Report, 2004 Long-term ground water report received. Douglas Bauer
12/30/2004 Update or Other Action Water sampling results received from Shannon and Wilson and mailed to residences that participated in 2004 sampling. Twelve residences were sampled; four residences (1357 Leslie, 1319 Smithson, 1345 Smithson, 853 Conley) either refused sampling or could not be contacted after repeated attempts. Douglas Bauer
1/5/2005 Update or Other Action Completed draft of 2004 fact sheet for Six Mile area and forwarded to L. Johnson for review. Douglas Bauer
1/11/2005 Update or Other Action The residential well sampling results were mailed to the participants for the Six Mile Richardson ground water monitoring program. Douglas Bauer
1/12/2005 Update or Other Action A request for proposal was forwarded to L. Johnson for the installation of a water treatment system at 1378 Smithson Street. Douglas Bauer
1/19/2005 Update or Other Action 2004 (FY05) Fact Sheet mailed and forwarded for posting on site summaries web-page. Douglas Bauer
1/21/2005 Update or Other Action Dennis Gentleman telephoned to discuss scheduling difficulties and state that carbon filter in treatment system at 1366 Sloan had been changed. Douglas Bauer
2/1/2005 Update or Other Action Received Shannon & Wilson report titled " Long-term Ground Water Monitoring Six Mile Richardson Highway, Fairbanks, Alaska." Douglas Bauer
3/2/2005 Update or Other Action The water quality results for 1378 Smithson were returned in the mail as undeliverable because of no mail box. The results were sent to Mr. Curtis & Shana McNeal at 1370 Smithson the registered owners of the property. A check with the Fairbanks North Star Borough (database query and telephone call by Mitzi Read) found 1370 Smithson as the only valid mailing address. The water quality results were hand delivered by Mr. Douglas Bauer on 3/2/2005. There was no one home at a green house trailer at 1378 Smithson at the time so the results were left in the front door sill. The residence at 1378 Smithson qualifies for a water treatment system since the TCE concentration is 4.0 µg/L which is above the 3.5 µg/L water treatment criterion. The TCE increase is statistically significant based on previous sampling. Douglas Bauer
3/2/2005 Update or Other Action A gentlemen interested in purchasing property at the corner of Warner Road and the Old Richardson Highway visited the office. He was interested in ground water contamination in the Six Mile area. He was given two color prints of the ground water plume from the contaminated sites site summary page. The property in question has not been impacted by the Six Mile ground water plume; he was advised to test the drinking water anyway because of other unknown sources in the area. Douglas Bauer
7/5/2005 Update or Other Action Received electronic copy of January 2005 long-term ground water monitoring report from Shannon & Wilson. Douglas Bauer
7/6/2005 Update or Other Action Received a telephone call from Ms. Colleen Conley. She was interested in testing her new wells located on Westcott Avenue. Mr. Conley was advised that her properties were outside of the TCE ground water plume. She could test for TCE and daughter products and BTEX using EPA Method 8260 or EPA Method 524 (VOCs). Douglas Bauer
8/9/2005 GIS Position Updated Set datum value to NAD1927. Torsten Ernst
8/19/2005 Update or Other Action Meeting at Shannon & Wilson with David McDowell, Mark Lockwood, and Jon Lindstrom to discuss 2005 field activities. Douglas Bauer
9/6/2005 Update or Other Action The fiscal year 2006 (2005 calendar year) request for proposal for the Six Mile annual ground water monitoring was forwarded to ADEC contracting for processing. Douglas Bauer
9/12/2005 Update or Other Action Updated schedule on FY 2006 (2005 calendar year request for proposal. Douglas Bauer
9/19/2005 Update or Other Action Prepare response fund site summary and email to Jim Frechione. Douglas Bauer
9/27/2005 Update or Other Action Completed NTP funding approval form and forwarded to Rich Sundet Douglas Bauer
7/19/2006 Update or Other Action Received from ADEC contracting office Shannon and Wilson's report titled "Long-term Ground Water Monitoring Six Mile Richardson Highway Fairbanks, Alaska" dated June 2006. Douglas Bauer
8/4/2006 Update or Other Action 2006 Fact Sheet published, mailed out, and posted to CS site summaries web-page. Douglas Bauer
8/23/2006 Update or Other Action Ms. Jennifer Beck recently purchased 1319 Smithson and called about water quality sampling of her residential well (she received request letter). She was advised to contact Shannon & Wilson to schedule a sampling appointment since the residence qualifies for sampling. Douglas Bauer
1/9/2007 Update or Other Action Mr. Ivar Halverson, accessor with Fairbanks North Star Borough, called concerning cleanup of Six Mile Truck Shop property. He was advised that no workplans have been submitted for ADEC approval. Douglas Bauer
1/10/2007 Update or Other Action Received Shannon & Wilson report titled "Long-term Ground Water Monitoring Six Mike Richardson Highway Fairbanks, Alaska" dated December 2006. Douglas Bauer
1/11/2007 Update or Other Action Site inspection from public right-of-way at front gate: building appears to be unoccupied because of lack of internal/external lighting, no exhaust from heater chimeny, no evidence of auto tracks or foot prints in snow, and bariccaded entrance (chain & 55-gallon barrels). Douglas Bauer
1/11/2007 Update or Other Action Letter sent to Craig Mansfield requesting schedule for cleanup activities by March 1, 2007. Douglas Bauer
1/29/2007 Update or Other Action Telephone call from Craig Mansfield who is out-of-state until March 20, 2007. Craig is sending a letter outlining past accomplishments and future schedule. Craig will stop at ADEC office in March to finalize schedule. Douglas Bauer
5/25/2007 Update or Other Action Staff contacted Craig Mansfield, owner of the 6-mile truck shop, regarding the status of his site. A prospective purchaser agreement was signed by him, the State, and the Fairbanks North Star Borough in September/October 2004. Rockwell Engineering completed excavation work at the site in 2007 that was required in the PPA, but they did not have an approved work plan and no confirmation sampling was collected in the septic tank or drum storage area. There is a petroleum-contaminated stockpile on site. The groundwater is being monitored through the 6-mile area-wide investigation, but the plan must be reviewed to determine if the all of the appropriate COCs are being monitored. Mr. Mansfield believes he has completed the requirements of the PPA, with the exception of continued treatment of the stockpile. Rockwell Engineering is reviewing their files to determine if they coordinated with Doug Bauer or other DEC personnel on the field work. Confirmation sampling here may not be an issue if ICs can be established limiting soil disturbance and the area-wide groundwater monitoring can include petroleum constituents. Ann Farris
3/14/2008 Update or Other Action Project manager changed from Jim Frechione to Ann Farris. A review of the January 2008 Environmental Investigation Results of 6-mile Truck Shop, Fairbanks, AK by Rockwell Engineering and Construction Services indicates a underground heating oil tank was removed, stained surface soil around the building was excavated, 15 cy of soil removed from the “former pit area”, and an abandoned septic system excavated and filled with clean soil. Confirmation soil samples were collected beneath the tank and were clean. The surface soil was removed based on visual observations and cold PID readings and placed in a stockpile. This same method was used for the septic tank and "pit area". The stockpile was then sampled and found to have DRO contamination above migration to groundwater levels, 1,410 to 6,210 mg/kg. Arsenic also found to be slightly above cleanup level of 2 mg/kg, 2.5 to 4.9 mg/kg. No samples were collected at the edge of the excavation in the septic system or pit area. Ann Farris
4/17/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed. Ann Farris
5/22/2008 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed. Ann Farris
5/22/2008 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed. Ann Farris
7/13/2011 Site Visit Catherine Glover and Ann Farris met with the owner, Craig Mansfield, and Rockwell Engineering Representative, Shann Jones, at the site. Craig described the work that had been done, the locations where soil had been removed, and the stockpile that was constructed. The stockpile (pictures in the electronic file) was approx 40 x 100 feet and at most a foot deep. The consultant took only two confirmation samples based on the volume of soil. They did not submit a work plan prior to the sampling and did not take a duplicate. However, the pile has been there for four years and given it's shallow depth, is likely to have undergone significant remediation. Vegetation was growing through the pile. There was no surface staining observed on the rest of the property. The floor drains in the building had been excavated and there were no noticeable odors. The drains are going to be capped now with a cement plug. The owner is requesting spreading the soil from the stockpile thinly across the site. He indicated he would upgrade his fence system to be more secure. He has no plans to sell the site. Email correspondence in the hard file. Ann Farris
7/19/2011 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed. Ann Farris
7/21/2011 Cleanup Plan Approved Staff approved dismantling the stockpile and spreading the remaining soil across the site. In 2010, samples were collected from the stockpile and analyzed for DRO and arsenic. DRO showed concentrations below driect contact and inhalation cleanup levels, but above the migration to groundwater levels (324-418 mg/kg). Arsenic was present slightly above the migration to groundwater cleanup level (7.6-7.8 mg/kg) but below the area’s background levels as determined by the U.S. Army Corps of Engineers. For spreading across the site, during which additional remediation would occur, DEC considered this remaining contamination a de minimis amount that would pose no risk to human health or the environment. Ann Farris
10/11/2018 Update or Other Action Property owner came into DEC office to check on invoice and discuss status of site. He was under the impression the site issues he needed to take care of had been closed out already. DEC will work with him to evaluate status of the site. Janice Wiegers
2/28/2019 Update or Other Action DEC sent a letter to the landowner following a complete file review. Confirmation soil sampling is needed to determine if soil contamination remains in bermed drum storage area and the septic system following the excavation work in 2007. In addition, the septic system is a Class V injection well regulated by the EPA, and the system needs to be formally closed out by EPA to satisfy the prospective purchase agreement. Any future work should be completed under a workplan reviewed and approved by DEC. Janice Wiegers
4/27/2020 Workplan Requested DEC sent a letter requesting the overdue work plan originally requested on February 28, 2019. Rebekah Reams
6/18/2020 Document, Report, or Work plan Review - other DEC provided comments on Work Plan, Dry Well and Drum Storage Area Closure Sampling Work Plan that was submitted on June 3, 2020 by Arctic Data Solutions. This work plan details plans to advance three test pits at the site and collect analytical samples to confirm site conditions following the soil excavation completed in 2007 by Rockwell Engineering & Construction Services, Inc. Rebekah Reams
7/7/2020 Site Characterization Workplan Approved DEC comments on Dry Well and Drum Storage Area Closure Sampling Work Plan were accepted by the consultant and field operations are scheduled for July 8, 2020. Rebekah Reams
9/30/2020 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 71308 drum storage area. Rebekah Reams
10/7/2020 Document, Report, or Work plan Review - other DEC has reviewed the Dry Well and Drum Storage Area Closure Sampling Report submitted by Arctic Data Solutions on August 31, 2020. This closure sampling report presents the results of analytical confirmation samples collected at the drum storage area and at the dry well leach field and documents the investigation of several areas where surface soil staining has been documented in the past. Rebekah Reams
11/12/2020 Cleanup Complete Determination Issued Rebekah Reams

Contaminant Information

Name Level Description Media Comments
DRO < Method 2 Most Stringent Soil

Control Type

Type Details
No ICs Required

Requirements

Description Details
Advance approval required to transport soil or groundwater off-site.
Movement or use of contaminated material (including on site) in a manner that results in a violation of the water quality standards is prohibited (18 AAC 70)
Hazard ID Site Name File Number
25660 Six Mile Richardson Highway Groundwater Investigation 100.38.112

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State of Alaska Department of Environmental Conservation

P.O. Box 111800
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Phone: 907-465-5066
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