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Site Report: Alyeska Pipeline Service Building


Site Name: Alyeska Pipeline Service Building
Address: 1420 Van Horn Road, Fairbanks, AK 99701
File Number: 102.26.016
Hazard ID: 1077
Status: Cleanup Complete - Institutional Controls
Staff: IC Unit, 9074655229 dec.icunit@alaska.gov
Latitude: 64.813800
Longitude: -147.737250
Horizontal Datum:WGS84

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

In 1990, two 5,000 gallon heating fuel oil tanks were removed after the appurtenant piping at the tank vent above the tanks failed the tightness test and an estimated 43 gallons of oil was spilled during the operation. Prior to the 1990s, product recovery was performed using vac trucks periodically at the site to withdraw product from a 1984 4000 gallon spill when tank #1 was installed without a drain plug. In 1993, a waste oil UST was removed. In 1995, the fuel island area and dry well areas were also investigated. In 1997, the fuel island was the location of a corrective action in response to leak observed at the pump. These corrective actions resulted in soil remaining below Migration to GW. A dry well was also investigated and found to not be a likely source. During the early 90's - a total of 21 borings were advanced. Thirteen of these were completed as monitoring wells and one as a product recovery well to investigate the various source areas and conduct a site-wide groundwater investigation. Groundwater gradient in the area is reportedly very shallow and generally in the west to northwest direction. File was combined with 102.38.016 which was also for this site.

Action Information

Action Date Action Description DEC Staff
11/30/1990 Site Added to Database No Longer Assigned
8/26/1991 Update or Other Action (Old R:Base Action Code = RAPR - Remedial Action Plan Review (CS)). Alyeska called and requested a 2 week extension to deadline for the final report regarding the closure of 2 tanks at the site. Timmons agreed. Dennis Timmons
9/20/1991 Report or Workplan Review - Other Date of Van Horn Facility Tank Closure Report. This report discusses removal of the West and East Heating Oil Tanks and soil sampling associated with those excavations as well as a drilling program that included soil sampling and monitoring well installation (and groundwater samples collected). A recovery well (PW-1) was also installed in the center of the West Heating Oil UST excavation. Keather McLoone
1/21/1992 Report or Workplan Review - Other Date of Van Horn Facility Groundwater Investigation: Summary of Quarterly Groundwater Sampling Activites conducted during October 1991. MW-1 thru MW-9 and PW-1 were sampled. MW-10 and MW-11 were installed and sampled. Soil samples were also collected from the borings advanced to install these 2 new wells. A water well search was also performed in attemp to locate wells within 1/2 mile radius. No active water supply wells were determined to be at risk. Keather McLoone
7/1/1992 Report or Workplan Review - Other Date of Van Horn Facility Groundwater Investigation: Summary of Quarterly Groundwater Sampling Activities, Drilling Operations, and Analytical Results - February 1992. Keather McLoone
7/16/1992 Report or Workplan Review - Other Date of Groundwater Sampling Activities and Analytical Results - May 1992. Keather McLoone
2/11/1993 Report or Workplan Review - Other Date of Groundwater Monitoring Report. Summarizes groundwater results to this date including the most recent event in September 1992 as well as product recovery efforts at PW-1. Keather McLoone
5/24/1993 Report or Workplan Review - Other Date of Groundwater Monitoring Report received 12/14/1993. Summarizes groundwater results to this date including the most recent events in March and May 1993 as well as product recovery efforts at PW-1. Keather McLoone
2/25/1994 Report or Workplan Review - Other Date of Dry Well Investigation Report on August 1993 effort. One soil sample was collected from an excavation advanced to locate a formerly abadoned dry well. DRO/GRO/BTEX results below cleanup levels. Keather McLoone
3/16/1994 Report or Workplan Review - Other Date of Underground Storage Tank Site Assessment and Closure Report received on 3/14/94. This report documents the removal, site assessment, and closure of the Van Horn Facility used oil tank. Approximately 4.5 yds of contaminated soil was removed from the tank area, the source of which appeared to be small surface spills near the stand pipe used to empty the tank. Soil contamination remaining along the south wall of the excavation due to concerns about the structural integrity of the nearby above-ground storage tank containment area. Confirmation samples contained up to 532 mg/kg DRO. These samples were also analyzed for GRO, BTEX, and RRPH (residual range petroleum hydrocarbons. A stockpile sample was also analyzed for metals (TCLP) to determine disposition options. Keather McLoone
3/16/1994 Report or Workplan Review - Other Date of Groundwater Monitoring Report. Summarizes groundwater results to this date including the most recent event in September 1993 as well as product recovery efforts at PW-1. Keather McLoone
5/10/1994 Report or Workplan Review - Other Date of Workplan for Fuel Island Site Assessment. Keather McLoone
6/14/1994 Report or Workplan Review - Other Date of Groundwater Monitoring Report. Summarizes groundwater results to this date including the most recent event in April 1994 as well as product recovery efforts at PW-1. Keather McLoone
6/20/1994 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 concerning contaminated site. Bob Hall from Alyeska responded with call to say they were not RP and he would mail info. Jeff Peterson
1/13/1995 Report or Workplan Review - Other Date of Groundwater Monitoring Report. Summarizes groundwater results to this date including the most recent events in April and October 1994 as well as product recovery efforts at PW-1. Keather McLoone
1/18/1995 Report or Workplan Review - Other Date of Final Van Horn Fuel Island Former Dry Well Groundwater Impact report. Three borings were advanced adjacent to a fuel island located next to a bermed, containment area for a gasoline and 2 diesel ASTs. One of these was completed as a monitoring well - MW-13. Another boring was advanced near the abadoned dry well and a monitoring well installed - MW12. Soil samples were analyzed for DRO/GRO/BTEX and concentrations were well below cleanup levels including most conservative of January 2009 Method Two. Groundwater samples collected also did not indicate an impact from these source areas. This investigation was conducted because of a 35 gallon release of diesel on 2/16/1994 at the fuel island. The dry well had formerly been connected to floor drains in the nearby building. Keather McLoone
11/10/1995 Report or Workplan Review - Other Date of Groundwater Monitoring Report received 12/11/1995. Summarizes groundwater results to this date including the most recent events in June and October 1995 as well as product recovery efforts at PW-1. Keather McLoone
8/16/1996 Site Ranked Using the AHRM Ranked by Shannon and Wilson. S&W
12/20/1996 Report or Workplan Review - Other Date of Groundwater Monitoring Report received 6/9/1997. Summarizes groundwater results to this date including the most recent event in September 1996 as well as product recovery efforts at PW-1. Soil samples were also collected from three test pits located downgradient from the former West Healing Oil UST and analyzed for TOC. Sample location selection for useable TOC data should be from outside the area of potential contamination. Keather McLoone
12/30/1997 Report or Workplan Review - Other Date of Final Groundwater Monitoring Report received 9/28/98. Summarizes groundwater results to this date including the most recent event in September 1997 as well as product recovery efforts at PW-1. A couple of the wells were resampled in November 1997 due to lab exceeding holding times for PAHs. Keather McLoone
1/15/1998 Report or Workplan Review - Other Date of Final Corrective Action Report received 9/28/98. This corrective action was performed in August 1997, after an estimated 7 gallongs of diesel fuel was spilled and an excavation with the dimensions of about 16 feet by 17 feet and approximately 9 feet deep had been advanced. A liner was observed at the perimater of the excavation at a depth of about 5 ft bgs. The excavataion was about 9 ft deep and there was about 1 ft of water with a sheen at the bottom of the excavation. Excavation confirmation samples and a groundwater sample collected at nearby, downgradient MW-12 indicated no remaining impacts due to this fuel island spill. Keather McLoone
5/6/1998 Report or Workplan Review - Other Date of Final Corrective Action report received 9/28/1998. This corrective action was performed during December 1997 in response to an estimated 100 gallons of diesel fuel spilled due to overfill of a spreader truck. An excavation approximately 10 feet by 45 feet and 2 to 3 ft deep was advanced. The excavation was then extended based on field screening to about 30 feet by 60 feet with a max depth of 4 ft. Soil sample results showed that the excavation removed soil above cleanup levels. Keather McLoone
12/31/1998 Report or Workplan Review - Other Date of Final Groundwater Monitoring Report. Summarizes groundwater results to this date including the most recent event in August 1998 as well as product recovery efforts at PW-1. Keather McLoone
12/29/1999 Report or Workplan Review - Other Date of 1999 Groundwater Monitoring Report. Summarizes groundwater results to this date including the most recent event in November 1999 as well as product recovery efforts at PW-1. MW-2 was decommissioned and MW-14 was installed. Keather McLoone
6/13/2000 Report or Workplan Review - Other Date of Remedial Action Workplan. The planned activities included decommissioning wells MW-5 and MW-13 which had been destroyed previously. Keather McLoone
12/30/2000 Report or Workplan Review - Other Date of 2000 Groundwater Monitoring Report. Summarizes groundwater results to this date including the most recent event in August 2000 as well as product recovery efforts at PW-1. Keather McLoone
1/19/2001 Update or Other Action Final 2000 Groundwater Monitoring Report, Van Horn Facility submitted to ADEC. Monitoring wells MW-1, MW-5, MW-10 and MW-14 were sampled and product (0.95 liters) was collected from recovery well PW-1. Concentrations of contaminants detected in the monitoring wells on-site were below MCLs with the exception of the DRO result for MW-1 (5.37 ppm). IT recommends annual groundwater monitoring to be continued in 2001 for MW-1, MW-5, MW-10, MW-14. Deborah Williams
6/26/2001 Report or Workplan Review - Other Date of 2001 Groundwater Monitoring Report. Summarizes groundwater results to this date including the most recent event in August 2001 as well as product recovery efforts at PW-1. Keather McLoone
12/31/2002 Report or Workplan Review - Other Date of APSC Van Horn Facility Groundwater Monitoring report. Summarizes groundwater results to this date including the most recent event in September 2002 as well as product recovery efforts at PW-1. Keather McLoone
4/8/2003 Institutional Control Record Established IC established on the Database. Deborah Williams
4/8/2003 Conditional Closure Approved A NFRAP was issued to Alyeska on the Van Horn Facility site. Final GW levels were 3.33 mg/l DRO for MW-1 (2001) and 12.6 mg/l DRO for PW-1(2002). An evaluation of the exposure pathways reveals that the drinking water pathway is incomplete, and the indoor air pathway is potentially complete but likely to be insignificant, as GW concentration of petroleum hydrocarbons do not exceed the most stringent USEPA target concentrations for this exposure pathway. Deborah Williams
3/14/2008 Update or Other Action Received Trans Alaska Pipeline System: 2007 Monitoring Well Decommissioning Report. The Van Horn Facility was not visited as planned due to snow cover. Will return spring 2008 to decommission the 11 monitoring wells at this site. Keather McLoone
12/29/2008 Update or Other Action Confirmed via GoogleEarth that buildings still onsite as condition of previous closure decision was that once soil contamination beneath the warm storage building became accessible that it be addressed. Site also listed by EPA. Need to confirm that well decommissioning took place in 2008. Keather McLoone
2/26/2009 Update or Other Action Email to Alyeska to inquire about status of well decommissioning. Reply from SLR on 2/27/09 states that they will address this in 2009. Keather McLoone
6/25/2009 Site Visit DEC conducted a site inspection along with Alyeska Pipeline Services Company and their consultant, SLR. Most of the wells that are to be decommissioned were located and discovered to be high risk for acting as a potential conduit for contamination given their locations and condition. Some of the wells were frost-jacked several feet above ground surface (ags) and had screen exposed ags, others were broken off near ground surface without covers etc. Keather McLoone
12/22/2009 Report or Workplan Review - Other Date of receipt of report entitled "2009 Monitoring Well Decommissioning at the Van Horn Facility, Fairbanks, Alaska" submitted by SLR on behalf of Alyeska. Decommissioning activities took place on June 25 and July 3, 2009. The objective was to decommission all wells that could be located at the site. Nine wells were decommissioned. Two of these wells were not identified by previous reports and have an unknown well ID. Three wells that were intended to be decommissioned could not be located - MW-1, MW-9, and MW-10. Keather McLoone
4/26/2010 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 78877 name: waste oil tank Keather McLoone
5/19/2010 Update or Other Action A cleanup complete with Institutional Controls letter was issued on this date to record a decision regarding the former waste oil tank. The fuel island area and former dry well were also discussed in the letter as these source areas are also contained in this administrative file, although contamination remaining associated with the former dry well and fuel island was found to be below Method Two Migration to Groundwater. All known source areas at this location have been addressed between this decision letter and the previous NFRAP letter issued. Keather McLoone
12/1/2011 Update or Other Action The current project manager chose to retain management of this site with the Cleanup Complete Determination that has Institutional Controls. Kristin Brown
5/18/2015 Institutional Control Compliance Review An IC Verification letter was received from the responsible party. The property has been sold to Arctic Slope Regional Corporation (ASRC) Energy Services. The affiliates has been updated with the new property owner information. Compliance is being met for all other ICs in place. Reminder system set to follow-up in five years. Kristin Brown

Contaminant Information

Name Level Description Media Comments
DRO > Table C Groundwater

Control Type

Type Details
CS Database Notation And Letter To Landowner/RP

Requirements

Description Details
Groundwater Use Restrictions The closure states that groundwater supply wells will not be installed on the property.
When Contaminated Soil is Accessible, Remediation Should Occur

Missing Location Data

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