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Site Report: Bayside Gas (AKA Mill Bay G&G)


Site Name: Bayside Gas (AKA Mill Bay G&G)
Address: 3833 Rezanof Lane, Kodiak, AK 99615
File Number: 2601.26.007
Hazard ID: 23065
Status: Active
Staff: Paul Horwath, 9072623422 Paul.Horwath@alaska.gov
Latitude: 57.816852
Longitude: -152.354738
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 May of 2004 during a Release Investigation, gasoline range organics (GRO) and benzene, toluene, ethylbenzene, and xylenes (BTEX) soil and groundwater contamination was encountered downgradient of the 4,000-gallon and 2,000-gallon underground storage tanks located at the facility. Five soil borings were advanced and four were developed into groundwater monitoring wells. On September 25, 2006 approximately 90 cubic yards of contaminated soil was excavated around the existing underground storage tanks and stockpiled on site.

Action Information

Action Date Action Description DEC Staff
11/25/2003 Leaking Underground Storage Tank Release Confirmed - Petroleum LUST Site created in CSP for source area ID 77712 * Not Assigned
11/25/2003 Leaking Underground Storage Tank Cleanup Initiated - Petroleum * Not Assigned
11/25/2003 Site Added to Database * Not Assigned
5/19/2004 Release Investigation Release investigation conducted by TPECI for UST system. Leaking seal on turbine pump results in contaminated soil and GW. Monica English
9/14/2004 Update or Other Action Based on review of RI report, ADEC requests a CAP be submitted. Monica English
12/1/2004 Update or Other Action File number 2601.26.007 assigned and entered into the Fileroom database and Leaking Underground Storage Tank database. Alyce Hughey
9/1/2005 Update or Other Action Consultant submits a groundwater sampling report. Monica English
10/21/2005 Update or Other Action ADEC request for a Corrective Action Plan. Monica English
12/2/2005 Update or Other Action Consultant submits a groundwater sampling report. Monica English
3/9/2006 Update or Other Action ADEC Comments for the submitted CAP. Monica English
4/27/2006 Leaking Underground Storage Tank Corrective Action Underway Corrective Action Plan submitted. Monica English
6/8/2006 Update or Other Action Conditional approval issued for addressing contaminated soils portion of the CAP. Monica English
10/9/2006 Update or Other Action Project manager changed from Monica English to Don Seagren, per Paul Horwath. Alyce Hughey
11/15/2006 Leaking Underground Storage Tank Corrective Action Underway Reviewed summary report. Soil contamination exceeding clenaup levels remains under UST. Approx 90 yds3 of contaminated soil in long term stockpile awaiting evaluation of remediation options. More detail on GW remediation system to be forthcoming. Donald Seagren
3/8/2007 Exposure Tracking Model Ranking * Not Assigned
7/16/2007 Report or Workplan Review - Other Reviewed June 2007 monitoring report. 2 MWs exceed cleanup levels for GRO & Benzene. MW1 indicates benzene contamination is migrating on site from an upgradient source. Next monitoring event will be September 07. Donald Seagren
4/23/2008 Leaking Underground Storage Tank Corrective Action Underway Reviewed a groundwater treatment system plan prepared by Travis/Peterson Environmental Consulting, Inc., dated February 23, 2007, prepared for Petro Star, Inc., for this LUST site. Pump and treat plan with treated water to be discharged to the City Kodiak PWWT works. Sent an e-mail message to Mike Travis and inquire about the current status of the site and to ensure that there is still a desire to implement this groundwater treatment system plan. Mike Travis responded that they would like to collect another set of groundwater samples this spring and then they would make the decision as to whether or not to undertake GW cleanup measures, or revert to long-term groundwater quality monitoring. Paul Horwath
6/13/2008 Update or Other Action Site transferred from Don Seagren to Paul Horwath per Linda Nuechterlein. Alyce Hughey
11/19/2008 Update or Other Action Reviewed the May 2008 Monitoring Event Report, dated May 19, 2008, and the October 2008 Monitoring Event Report, dated October 29, 2008 from Travis/Peterson Environmental Consulting, Inc. for Paul Horwath. The down-gradient extent of the groundwater contamination has not been determined. Additional groundwater monitoring is needed in order to establish groundwater trends. Alyce Hughey
9/8/2009 Report or Workplan Review - Other Reviewed the Groundwater Monitoring and Supplemental Investigations Report, dated August 11, 2009 from Travis/Peterson Environmental Consulting Inc. for Paul Horwath. Site conditions are remaining stable with the groundwater concentrations remaining about the same as previous monitoring events. MW-2, the monitoring well down-gradient of the underground storage tanks continues to detect Benzene and GRO above the groundwater cleanup levels. Long term monitoring is recommended, with the next monitoring event to be performed in October of 2009. The surface water samples taken from the drainage ditch along Rezanof Drive did not detect any hydrocarbon contamination, and the drinking water well search performed did not indicate any drinking water wells located 1,000 feet down-gradient of the site, and that all surrounding properties are serviced by the City of Kodiak Public Drinking Water. Alyce Hughey
10/7/2010 Report or Workplan Review - Other Reviewed the August 3, 2010 Mill Bay Gas 'n' Go, former Bayside Gas Groundwater Monitoring Report, from Travis/Peterson Environmental Consulting, Inc. for Paul Horwath. The groundwater concentrations have not changed much since the beginning of the ongoing monitoring in 2007. GRO and benzene remains above the groundwater cleanup levels in monitoring well MW-2, and benzene has been detected in all the other monitoring wells above the groundwater cleanup levels other than MW-1 during the June of 2010 sampling. Continued groundwater monitoring is recommended with the next sampling to be performed in October of 2010. Alyce Hughey
2/23/2011 Report or Workplan Review - Other Reviewed the Groundwater Monitoring Report, dated December 16, 2010, from Travis/Peterson Environmental Consulting. During the October 14, 2010 groundwater sampling event all four of the monitoring wells detected Benzene and one monitoring well detected GRO above the groundwater cleanup levels. Semi-annual groundwater monitoring continues for further assessing of the groundwater quality at the site. Alyce Hughey
9/21/2011 Report or Workplan Review - Other Reviewed the Contaminated Soil Stockpile Disposal Report, dated August 2011, and prepared by Travis/Peterson Environmental Consulting, Inc. The 90 cubic yards of stockpiled contaminated soil was shipped in three different trips to OIT for thermal remediation and disposal. Shipments were conducted on April 25, 2011 consisting of six truckloads of 110.64 tons of soil, May 14, 2011 consisting of six truckloads of 130.57 tons of soil and May 28, 2011 consisting of two truckloads of 47.18 tons of soil. On June 9, 2011 Alaska Resources and Environmental Services, LLC (ARES) performed a Stockpile Closure Investigation in the area of the former 90 cubic yards of stockpiled contaminated soil. Five grab (4 samples and on field duplicate) confirmation soil samples were taken from under the former stockpile area at a depth of 6 inches below ground surface and analyzed for GRO, BTEX and PAHs. All sample results were either non-detect or below the ADEC cleanup levels. Alyce Hughey
9/22/2011 Report or Workplan Review - Other Reviewed the Groundwater Monitoring Report, dated July 6, 2011, from Travis/Peterson Environmental Consulting, Inc. The four on-site monitoring wells were sampled on June 9, 2011. Benzene was detected above the groundwater cleanup levels in three of the wells sampled at concentrations of 0.0134 mg/L to 0.398 mg/L and GRO was detected above the groundwater cleanup levels at a concentration of 2.36 mg/L in one of the wells sampled. Semi-annual groundwater monitoring will continue according to the long term monitoring program, with the next sampling event taking place in October of 2011. Alyce Hughey
12/28/2011 Report or Workplan Review - Other Reviewed the Groundwater Monitoring Report, dated November 14, 2011, from Travis/Peterson Environmental Consulting, Inc. The four on-site monitoring wells were sampled on October 12, 2011. Benzene was detected above the groundwater cleanup levels in three of the wells sampled at concentrations of 0.0295 mg/L to 0.316 mg/L; with all other analytes either testing below the groundwater cleanup levels of not being detected. Semi-annual groundwater monitoring will continue according to the long term monitoring program, with the next sampling event taking place in June of 2012. Alyce Hughey
9/24/2012 Report or Workplan Review - Other Reviewed the Groundwater Monitoring Report, dated June 12, 2012, prepared by Travis/Peterson Environmental Consulting, Inc. The four on-site monitoring wells were sampled on May 4, 2012. Benzene was detected above the groundwater cleanup levels in all four of the wells sampled at concentrations of 0.00513 mg/L to 0.569 mg/L. GRO was detected in monitoring well MW2 at a concentration of 3.56 mg/L. Due to the heavy snowfall during the winter of 2011-2012 the groundwater level in the monitoring wells were higher than normal. Semi-annual groundwater monitoring will continue according to the long term monitoring program, with the next sampling event taking place in October of 2012. Alyce Hughey
12/26/2012 Report or Workplan Review - Other Reviewed the Groundwater Monitoring Report, dated October 19, 2012, from Travis/Peterson Environmental Consulting, Inc. The four on-site monitoring wells were sampled on October 5, 2012. Benzene was detected above the groundwater cleanup levels in three of the monitoring wells sampled at concentrations of 0.0135 mg/L to 0.366 mg/L. Kodiak had above average rainfall during the month of September 2012 with 9.64 inches of rainfall, resulting in an increase in groundwater elevation in the site monitoring wells. Long term monitoring will continue with the next sampling event scheduled to be performed in June of 2013. Alyce Hughey
7/19/2013 Report or Workplan Review - Other Reviewed the Groundwater Monitoring Report, dated July 1, 2013, prepared by Travis/Peterson Environmental Consulting, Inc. The four on-site monitoring wells were sampled on June 19, 2013. Benzene was detected above the groundwater cleanup levels in three of the monitoring wells sampled at concentrations of 0.0093 mg/L to 0.315 mg/L. Groundwater was measured in wells at depths of 3.08 to 6.83 feet from the top of well casings. Long term monitoring will continue with the next sampling event scheduled to be performed in October of 2013. Alyce Hughey
12/19/2013 Report or Workplan Review - Other Reviewed the Groundwater Monitoring Report, dated September 16, 2013, prepared by Travis/Peterson Environmental Consulting, Inc. The four on-site monitoring wells were sampled on September 5, 2013. Benzene was detected above the groundwater cleanup levels in three of the monitoring wells sampled at concentrations of 0.0202 mg/L to 0.245 mg/L. Groundwater levels were higher in the wells, at depths of 2.50 to 5.50 feet from the top of well casings, with increases of 0.58 to 1.33 feet in wells. Alyce Hughey
7/3/2014 Report or Workplan Review - Other Reviewed the Groundwater Monitoring Report, dated June 20, 2014, prepared by Travis/Peterson Environmental Consulting, Inc. The four on-site monitoring wells were sampled on June 4, 2014, with benzene being detected above the groundwater cleanup levels in all four monitoring wells sampled at concentrations of 0.00542 mg/L to 0.0954 mg/L. Groundwater levels were found at depths of 2.80 to 6.20 feet from the top of well casings, with groundwater levels falling from September of 2013 to June of 2014 by 0.30 to 0.70 feet. Alyce Hughey
3/12/2015 Update or Other Action Decimal Lat/Long coordinates collected from ADEC's Internal GIS map, and entered into database. 57.816852 -152.354738 Paul Horwath
11/7/2016 Report or Workplan Review - Other Receive and review the October 2016 GW Monitoring Report, dated November 7, 2016. GW concentrations gradually declining. Travis Peterson recommends continued long-term GW monitoring. Paul Horwath

Contaminant Information

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