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Site Report: Van Gas (Suburban Propane)

Site Name: Van Gas (Suburban Propane)
Address: NE Corner Driveway Street & Charles Street, Fairbanks, AK 99701
File Number: 102.38.011
Hazard ID: 714
Status: Active
Staff: Janice Wiegers, 9074512127
Latitude: 64.851036
Longitude: -147.722639
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.


Initial investigation (5/1989) associated with Illinois and Minnie Street Connector road project. Subsequent soil and water sampling revealed high levels of hydrocarbon soil contamination and floating oil product at the water table. Source, extent of contamination, and threat to human health unknown. State Land. Also see file number: 102.38.007.

Action Information

Action Date Action Description DEC Staff
5/1/1989 Preliminary Assessment Approved ADOT contracted Shannon and Wilson, Inc. to investigate past uses and potential hazards at the site as part of a right-of-way road project. Shannon and Wilson, Inc. report, "Preliminary Hazardous Waste Site Evaluation, proposed Minnie Street Connector, Fairbanks, Alaska" indicates that no documented releases have occurred at this site, though a site visit revealed evidence of fuel spillage and releases from ASTs and fuel pumps. No Longer Assigned
12/1/1990 Site Characterization Report Approved (Old R:Base Action Code = SI - Site Investigation). DOT contracted Shannon and Wilson, Inc. to investigate site. Their report, "Final Report: Illinois Street and Minnie Street Connector Hazardous Waste Field Investigation, Phase II" dated 12/90 reports that 14 of 18 soil samples from monitoring wells exceeded 100 ppm TPH ranging from 21 - 120,000 ppm with the highest levels found at, or near the water table. All water samples had high levels of BTEX and a floating yellow product was observed in each of the 5 product monitoring wells ranging from 0.06' - 0.57'. 3 of 4 surface soil samples exceeded 100 ppm TPH and 1 sample contained 1.7 ppm PCE. No Longer Assigned
1/11/1991 Site Added to Database Hydrocarbon contamination of soil and groundwater. No Longer Assigned
5/1/1991 Site Ranked Using the AHRM Initial ranking. No Longer Assigned
12/18/1992 Update or Other Action (Old R:Base Action Code = RPL2 - Site Information Request Letter). PRP notified by letter, party of ADEC's intent to use Response Fund monies to initiate a comprehensive area-wide Phase I site Assessment of the Illinois-Minnie Site. Asks to submit questions and comments. Cindy Thomas
12/28/1992 Update or Other Action (Old R:Base Action Code = CORR - Correspondence (General)). (OSLP) ARRC submitted comments and preferred Site Assessment plan for Illinois-Minnie Site. This Project was first proposed in 1990. Cindy Thomas
12/28/1992 Update or Other Action (Old R:Base Action Code = CORR - Correspondence (General)). (OSLP) Correspondence returned to ARRC thanking for comments. Will incorporate into ADEC final version. Will keep ARRC and all parties updated on future actions. Cindy Thomas
1/31/1995 Update or Other Action SITE SUMMARY: Ground water impact known, but cleanup delayed pending the outcome of MSLUG efforts. ADEC notified operator of draft COBC to guide cleanup in 1995. Cindy Thomas
9/4/2001 Update or Other Action Nortech Environmental and Engineering Consultants submit Phase II sampling results and draft remediation workplan. Documented soil contamination associated former ASTs and injection well. Jonathan Williams, EPA UIC Region 10, sent report. Soil contamination consists of petroleum hydrocarbons. Site may in or nearby area-wide groundwater contamination as documented in USGS Water Resources Investigation Report Number 96-4049 dated 1996. Douglas Bauer
10/3/2001 Proposed Plan Plan to excavate contaminated vadose zone soil approved. Excavation to be directed by initial Phase II soil boring results and on-site trenching with soil gas screening and/or Hanby assays. Determination of the nature of onsite groundwater contamination and its relationship to area-wide groundwater contamination will be done concurrently with or after excavation. Douglas Bauer
4/11/2002 Update or Other Action PRP Cost Recovery letter and invitation to participate in Fairbanks Area-wide Industrial Reclamation (FAIR) project sent Suburban Corporate headquarters in New Jersey Douglas Bauer
4/11/2002 Update or Other Action Nortech requested an amendment to the approved cleanup workplan in a March 22, 2002 letter. Response sent stating that alternatives to the approved Method 2 standards requires a limited risk evaluation of additional pathways. Groundwater cleanup will probably be based on area-wide groundwater cleanup approach through FAIR. Douglas Bauer
4/18/2002 Meeting or Teleconference Held D. Bauer and J. Wiegers met with Peter Beardsley with Nortech to develop conceptual site model and methods to investigate pathways Douglas Bauer
7/10/2002 GIS Position Updated Changed the Latitude, Longitude, Method Accuracy, Accuracy and Unit fields. Heather Goldman
10/9/2002 Update or Other Action Excavation underway, approximately 6000 cubic yards excavated. NORTECH supplied ground water sampling plan via email. Douglas Bauer
10/14/2002 Meeting or Teleconference Held Meeting with Peter Beardsley's and Dennis Filler of NORTECH to discuss possible in-situ and ex-situ treatment alternatives due to large volume of excavated material. Douglas Bauer
12/9/2002 Update or Other Action NORTECH advised that thermal treatment will be pursued. Douglas Bauer
5/9/2003 Update or Other Action ADEC NFA letter issued for closure of injection well. Douglas Bauer
10/31/2003 Update or Other Action EPA NFA letter issued for closure of injection well Douglas Bauer
12/1/2003 Update or Other Action Hart Crowser submitted groundwater monitoring report for ARRC. Four wells on the Van Gas property, as well as six former MSLUG wells were sampled in conjunction with the FAIR project. Highest petroleum concentrations were observed in AR 12 (benzene at 44 ppb). PCE was found in AR-3 at 5.8 ppb. Janice Wiegers
5/28/2004 Update or Other Action HartCrowser submitted groundwater monitoring report for ARRC. AR12 and AR15 not sampled due to presence of product on the water table. DRO was the only petroleum compound exceeding cleanup levels (2.2 mg/L in AR-9). PCE exceeded cleanup levels in AR3 (0.016 mg/L). Janice Wiegers
11/12/2004 Update or Other Action HartCrowser submitted groundwater monitoring report for ARRC. AR-12 could not be found due to surface work at the site. AR3, AR9, and A15 were surveyed in May and elevations were compared to benchmarks on the adjacent Saupe's site. The highest level of petroleum contamination was found in AR-15 (DRO at 5.6 mg/L). Benzene and GRO were not detected above cleanup levels. All VOCs were all below cleanup levels, except PCE in AR3 (0.015 mg/L) Janice Wiegers
6/1/2005 Update or Other Action Hart Crowser submits groundwater monitoring report for ARRC. Product present in AR-12 and AR-15. AR-12 contained 0.31 ft of product, the largest amount since monitoring began in 2003. File review indicates AR-12 is located near a former Van Gas dispensing area. A product sample was collected but results are not yet available. PCE exceeded cleanup levels in AR-3 (8.9 ug/L). Janice Wiegers
6/29/2005 Update or Other Action ARRC sends letter to Suburban Propane requesting that a plan be submitted to ADEC to address the product observed on site. Janice Wiegers
7/5/2005 Update or Other Action Telephone call form Peter Beardsley with Nortech. Peter indicated AR-12 was screened at a depth of about 40 ft (observed through a down-hole camera). Janice Wiegers
7/5/2005 Update or Other Action Telephone call from Peter Beardsley with NORTECH concerning free product at site. Referred him to Janice Wiegers and reports concerning fluctuating water table. Douglas Bauer
12/28/2005 Update or Other Action Received September 2005 Groundwater Monitoring Report. According to the report, AR-3 and AR-9 were destroyed because of re-grading activities on the site. Floating free-phase product was observed in AR-12 so no sample was collected. One groundwater sample was collected from AR-15 and it had results of 46.7 mg/L DRO and 1.53 ug/L of benzene. Deborah Williams
8/29/2006 Update or Other Action ADEC received the April 2006 Groundwater Monitoring Well Installation and Groundwater Monitoring Report from Hart Crowser. According to the report, three new monitoring wells were installed on the property. AR-9A was installed downgradient of the former excavation area; AR-3A was installed in the northern corner of the property; and AR-9B was installed in the south east corner of the property (upgradient). Soil and groundwater results were non-detect for AR-3A and AR-9A, but AR-9B had DRO levels up to 13,300 ppm and GRO levels up to 512 ppm in the soil and DRO levels up to 18.2 ppm and benzene levels up to 15.5 ppb in the groundwater. AR-12 and AR-15 were not sampled because they both contained free-phased floating hydrocarbons. Deborah Williams
5/15/2007 Update or Other Action ADEC received the March 2007 Groundwater Monitoring Report for the Van Gas site. HartCrowser determined that the groundwater flow direction was in the west-northwest direction. Free-phase hydrocarbons were measured in AR-12 and AR-15 at a thickness of 0.01 foot. GRO, DRO, RRO and BTEX was non-detect in AR-3A and AR-9A. AR-9B had GRO levels up to 2.09 mg/L, DRO levels up to 8.63 mg/L and benzene at 0.026 mg/L. Deborah Williams
3/17/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed. Tamara Cardona-Marek
7/2/2008 Update or Other Action Received a call from Suburban Propane requesting status of site. Tamara Cardona-Marek
1/26/2009 Update or Other Action ADEC received from the Alaska RailRoad the September 2008 Groundwater Monitoring Event Reportfor the Fairbanks Area-Wide Industrial Reclamation Project. Report indicates that DRO is present above cleanup levels in monitoring wells AR-12 and AR-15. Benzene is also above cleanup levels in AR-12. Free product was measured (0.29ft) in well AR-9B. Groundwater flow direction as estimated to be to the southwest. Tamara Cardona-Marek
2/8/2011 Report or Workplan Review - Other DEC received and reviewed the September 2010 Groundwater Monitoring Report from Clarus Environmental Services for the Alaska Railroad Corporation. DRO and benzene exceeded the applicable cleanup levels in wells AR-9B and AR-12. DRO also exceeded its applicable cleanup level in well AR-15. Tamara Cardona-Marek
8/11/2011 Report or Workplan Review - Other DEC received a work plan for well monitoring. Work plan is the same used during the last two sampling events. DEC requested that a trend analysis is performed with the available data (if sufficient) and seasonal groundwater direction changes are documented. Tamara Cardona-Marek
2/22/2012 Report or Workplan Review - Other DEC received Groundwater Monitoring Report. Groundwater samples were collected on October 2, 2011 by Restoration, Science, and Engineering (RSE). Samples were collected from AR-9A, AR-3A, and AR-15. Free product was observed in AR-9B and AR-12, which were not sampled. DRO was present above DEC groundwater cleanup levels in AR-9A and AR-15. Janice Wiegers
12/17/2012 Report or Workplan Review - Other DEC received groundwater monitoring report prepared by Fairbanks Environmental Services. Groundwater samples were collected on October 10th and 12th, 2012. The wells sampled included AR-3A, AR-9A, AR-9B, AR-12, AR-15, AR-104, and MW-4. AR-104 and MW-4 are located west of the site on Minnie Street and at 1301 Well Street (Hazard ID 25403)and were sampled in the past as part of other sites or for areawide evaluation in the railroad industrial area. Results exceeding DEC groundwater cleanup levels included: PCE in MW-4 and AR-3A; TCE in AR-3A; benzene and DRO in AR-9B and AR-12; DRO and RRO in AR-9A; and DRO in AR-15. No contaminants exceeded cleanup levels in AR-104. Janice Wiegers
5/14/2013 Update or Other Action Workplan for annual fall groundwater monitoring submitted. The workplan was prepared by Fairbanks Environmental Service. Wells AR-3A, AR-9A, AR-9B, AR-12, and AR-15 will be sampled. Samples will be analyzed for BTEX, GRO, DRO, and RRO. In addition, DEC requested sampling for PCE and TCE in AR-3A. Janice Wiegers
7/1/2013 Update or Other Action Site symbol visually adjusted using ArcGIS, Bing satellite imagery, and documents from the file. 64.851036, -147.722639. 7/1/13; MLB. Michelle Barnes
12/13/2013 Report or Workplan Review - Other Groundwater monitoring report submitted by Fairbanks Environmental Services. Samples were collected on October 10, 2013 from AR-3A, AR-9A, AR-9B, AR-12, and AR-15. Groundwater flow direction was to the west-northwest which is typical in this area. No floating product was observed. Results showed that DEC groundwater cleanup levels were exceeded for DRO in AR-9B, AR-12, and AR-15. Benzene exceeded cleanup levels in AR-9B and AR-15. Janice Wiegers
12/19/2016 Report or Workplan Review - Other Groundwater monitoring report submitted. Five wells were sampled on September 20th, including AR-3A, AR-9A, AR-9B, AR-12, and AR-15. Sheen was observed on AR-9B and AR-15. Benzene exceeded DEC cleanup levels in AR-9B and AR-12. DRO exceeded cleanup levels in AR-9B, AR-12, and AR-15. PCE and TCE exceeded cleanup levels in AR-3A. Concentrations were similar to those observed in previous monitoring events, except for DRO and RRO in AR-9B, which were elevated. Depth to groundwater was observed to be about 12 feet and groundwater flow direction was west-northwest. Groundwater table was higher this year than is typical. Janice Wiegers

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