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Site Report: Alaska Commercial Co. Store - Emmonak


Site Name: Alaska Commercial Co. Store - Emmonak
Address: 345 Main Street (aka Yukon Way), Between 6th & 7th Streets, Emmonak, AK 99581
File Number: 2413.38.004
Hazard ID: 2113
Status: Active
Staff: Amy Rodman, 9074655368 amy.rodman@alaska.gov
Latitude: 62.777870
Longitude: -164.545354
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 1993 an environmental site assessment was conducted at 33 Alaska Commercial Company (AC) stores across Alaska. Three areas of gasoline and arctic grade diesel #1 contamination were confirmed above DEC cleanup levels at the AC store in Emmonak (aka AC Value Center). Sources included three above ground storage tanks (ASTs), a pump house, two generators, a generator building, three heating oil ASTs, and five drums. In 1997 and 1998 approximately 1,000 cubic yards of contaminated soil was removed and treated using in-situ landfarming techniques. A cleanup complete determination was issued for the site on April 2, 2003. Several additional releases of arctic grade diesel #1 occurred between 2004 and 2010 from the furnace and generator day tanks and were under the management of the DEC Prevention Preparedness and Response Program (including spill nos. 04279929701, 05279901201, 08279900801, and 10279932401). In August 2015, a site characterization report was submitted that confirmed contaminants remained in soil and groundwater above DEC cleanup levels. The site was reopened to address the additional contamination. FKA: Alaska Commercial Prop. - Emmonak

Action Information

Action Date Action Description DEC Staff
9/16/1993 Update or Other Action (Old R:Base Action Code = RAPR - Remedial Action Plan Review (CS)). Reviewed a draft workplan: "Environmental Site Assessments for Community Enterprise Development of Alaska, August, 1993", prepared by Montgomery Watson and received by ADEC/WDO 9/3/93. Insufficient information was available for adequate plan review and approval. Phase I or II Site Assessments needed for most of the AC Store sites. Eileen Olson
10/15/1993 Cleanup Level(s) Approved Alternate Cleanup Levels Approved this date. Ray Dronenburg
6/1/1994 Update or Other Action (Old R:Base Action Code = RARR - Remedial Action Report Review (CS)). Reviewed the Environmental Assessment and Cleanup Plans for 33 properties - Final Report. Plans are approved except that 1) the department reserves the right to review and approve a stockpile plan and those plans should be provided with a 3 week review period; 2) should the collection and subsequent treatment of GW be required, a discharge permit for treated waters returned to the environment may be required; and 3) burning of waste oils for purposes other than heat recovery is prohibited. Ray Dronenburg
11/18/1994 Update or Other Action (Old R:Base Action Code = RARR - Remedial Action Report Review (CS)). After reviewing the "Draft Environmental Assessments and Cleanup Plans for 33 Property Transfers in 16 Alaskan Communities", additional corrective action is needed for this site. Cindy Thomas
11/18/1994 Update or Other Action (Old R:Base Action Code = SA2R - Phase II SA Review (CS)). Reviewed the "Draft Environmental Assessments and Cleanup Plans for 33 Property Transfers in 16 Alaskan Communities". Cindy Thomas
11/27/1996 Site Added to Database Diesel contamination. Ray Dronenburg
7/24/1997 Update or Other Action ADEC reviewed Matrix Cleanup Levels and changed the Level from "A" to "B." The groundwater at this site is non-potable. The drinking water source in Emmonak is surface water. Previous score computation considered a drinking water well within 2,100' of the site. Shah Alam
4/21/1998 Site Ranked Using the AHRM Ranking action added now because it was not added when the site was originally ranked. Bill Petrik
11/17/1998 Update or Other Action ADEC received a closure dated October 7, 1998. Shah Alam
2/23/1999 Update or Other Action ADEC responded to the closure report stating that the site should not be closed, commented on the 1998-work, requested information relevant to using Method Two. Shah Alam
4/14/1999 Update or Other Action AVES wrote to Lynn Kent complaining ADEC letter dated February 23, 1999. Shah Alam
6/11/1999 Update or Other Action Lynn Kent responded back to AVES. Shah Alam
7/29/1999 Meeting or Teleconference Held At AVES' request ADEC project managers met AVES staff (Greg Christensen, Bruce Erickson) to discuss issues related to closure of the sites. AVES asked ADEC to consider biogenic interference, averaging of samples, and, to accept samples without QA/QC. AVES will provide alternative cleanup level computations using Method Three. Shah Alam
4/2/2003 Institutional Control Record Established ICs for DB tracking purposes only. Contamination remains on-site that will need to be dealt with if future excavation activities are undertaken. Bob Glascott
4/2/2003 Conditional Closure Approved At the request of ChemTrack, the file was reviewed, additional information obtained and a NFRAP letter was written. Bob Glascott
4/18/2006 Update or Other Action Site currently owned by The North West Company, with Alaska Village Initiatives retained as an affiliate for clean-up of site. Updated database to reflect this. Shannon Oelkers
4/3/2012 Institutional Control Compliance Review IC review conducted and staff name changed from Nuechterlein to IC Unit. Evonne Reese
4/3/2012 Institutional Control Record Removed This site meets the 2009 closure policy, therefore ICs can be removed. Evonne Reese
8/25/2015 Spill Transferred from Prevention Preparedness and Response Program Spill transferred by PPRP staff Megan Kohler. Spill no. 10279932401; spill date = 11/20/10; substance = arctic grade diesel; quantity = ~30 gallons; description: a fuel pump switch accidentally engaged causing fuel to be released from a vent pipe into the courtyard south of the furnace room. Additional releases that have occurred on this property include: spill nos. 04279929701, 05279901201, and 08279900801. Mitzi Read
8/25/2015 Site Reopened Site reopened to address releases of arctic grade diesel #1 that occurred between 2004 and 2010 from the furnace and generator day tanks and were under the management of the DEC Prevention Preparedness and Response Program. In August 2015, a site characterization report was submitted that confirmed contaminants remained in soil and groundwater above DEC cleanup levels. The cleanup complete determination was issued for the site on April 2, 2003 encompassed the contamination described in a 1993 environmental site assessment that was conducted at 33 Alaska Commercial Company (AC) stores across Alaska. Three areas of gasoline and arctic grade diesel #1 contamination were confirmed above DEC cleanup levels at the AC store in Emmonak (aka AC Value Center). Sources included three above ground storage tanks (ASTs), a pump house, two generators, a generator building, three heating oil ASTs, and five drums. In 1997 and 1998 approximately 1,000 cubic yards of contaminated soil was removed and treated using in-situ landfarming techniques. Mitzi Read
8/26/2015 Potentially Responsible Party/State Interest Letter Potentially Responsible Party / State Interest letter sent to Alaska Commercial Company by PPRP staff Megan Kohler. Mitzi Read
11/2/2015 Report or Workplan Review - Other Site Characterization AC Value Center report reviewed on this date. The report covers testing and sampling done in 2013 in response to diesel spills that occurred in the area of the former furnace room and generator shed between 2004 and 2010. Gasoline Range Organics (GRO), Residual Range Organics (RRO), Diesel Range Organics (DRO), Benzene, Toluene, Ethylbenzene, and total Xylenes were tested for in both soil and groundwater. GRO and DRO were detected in subsurface soil above ADEC cleanup levels for direct contact, while GRO, DRO, RRO, and Benzene were above ADEC cleanup levels for Groundwater . Due to soil permeability and high water table, remediation through soil removal may cause structural damage to several buildings, roads and utilities. Lisa Griswold
11/3/2015 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 73091 name: Alaska Commercial Co. Store - Emmonak Lisa Griswold
10/10/2016 Offsite Soil or Groundwater Disposal Approved Four cubic feet of soil cuttings will be transported to NRC, treated for DRO and GRO contaminants, and disposed of. Lisa Griswold
10/10/2016 Update or Other Action Document describing alternative to excavation to be submitted December 2016. Lisa Griswold
1/13/2017 Report or Workplan Review - Other ADEC provided comments to the remediation work plan received on December 14, 2016. A revised work plan is requested by February 13, 2017. Lisa Griswold
4/13/2017 Report or Workplan Review - Other Remediation Activity Work Plan AC Value Center was received on this date. Based on review of the work plan, a meeting between ADEC, the RP, and consultant has been scheduled for May 4, 2017. Lisa Griswold
5/4/2017 Meeting or Teleconference Held ADEC held a meeting with RP and consultant to discuss reviewed revised work plan. Items discussed included: 1) If the goal for the site was a cleanup complete with institutional controls, or if the goal was to establish an alternative cleanup level in an attempt to reach a cleanup complete. It was indicated that both were being considered. ADEC gave your consultant the Technical Memorandum for Determining the Fraction of Organic Carbon for Methods Three and Four as establishing an alternative cleanup level requires the information in the memorandum, but is not currently in the work plan. (This memo can be found at: http://dec.alaska.gov/spar/csp/guidance_forms/docs/DeterminingtheFractionofOrganicCarbon2017.pdf) 2)If the “site cap” was being considered as a permanent institutional control. The work plan indicated that this is the case. As such, ADEC stated that the site cap, as described in the work plan, could not be considered a permanent institutional control. In order to be protective of soil and ground water, a site cap is to be impermeable and requires a maintenance plan. ADEC recommended that the site cap be reviewed as to how best accomplish the requirements as a control. 3)The availability of the ADEC Data Quality Objective Memorandum (found at: http://dec.alaska.gov/spar/csp/guidance_forms/docs/LabDataandQAPolicyTechMemoMarch20173.pdf). This recently-updated memorandum is an excellent source of guidance as it applies to this work plan including: a)The need for clearly defined goals in the work plan. b)If the location of borings was to assess contaminant attenuation since 2015. Our discussions verified that this was the goal, and it was suggested that the planned borings more closely align with the 2015 boreholes in order to insure a better comparison. c)A clarification in the work plan as to which “ADEC approved lab” the samples would be sent to. It was indicated that the lab would be SGS. d)A clarification in the work plan regarding the statement that groundwater parameters would be “read” and whether that meant “stabilize”. e)A clarification in the work plan that referenced waste water being treated as hazardous waste. It was recommended that the wording be reviewed as the water was not likely going to be considered hazardous waste or require treatment and disposal as hazardous waste.f)Lastly it was discussed that more characterization should be considered to the north of the current contaminant boundary. G13-03 (the northernmost sampling point) contained contaminants above ADEC cleanup levels, and therefore the extent of contamination has yet to be defined. A revised work plan is requested by June 5, 2017, and should be sent to the new project manager: Amy Rodman. Lisa Griswold
5/9/2017 Update or Other Action Site transferred to Rodman Lisa Griswold
6/19/2017 Update or Other Action received "Remediation Activity Work Plan, Revised" from Golder Associates. Amy Rodman
8/29/2017 Site Characterization Workplan Approved Approval to sample groundwater and soil for monitoring natural attenuation. Analysis of soil and groundwaterfor GRO, DRO, RRO, PAH, and BTEX/VOC's. Select water samples will be analyzed for TAH & TAqH due to hydrological proximity to Yukon River. Amy Rodman

Contaminant Information

Name Level Description Media Comments
DRO Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil

Control Type

Type Details
No ICs Required

Requirements

Description Details
Advance approval required to transport soil or groundwater off-site.

There are no documents for this site report.

Missing Location Data

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