Site Report: Chefornak Chefarnrmute Corp. Former Tank Farm
| Site Name: | Chefornak Chefarnrmute Corp. Former Tank Farm |
|---|---|
| Address: | South Bank of Kinia River, 98 Air Miles SW of Bethel, Chefornak, AK 99561 |
| File Number: | 2408.38.005 |
| Hazard ID: | 3779 |
| Status: | Active |
| Staff: | * Currently Not Assigned, 9072693057 bill.oconnell@alaska.gov |
| Latitude: | 60.160004 |
| Longitude: | -164.286142 |
| Horizontal Datum: | WGS84 |
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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 former Chefarnmute Corporation tank farm stored diesel and gasoline for use in the village. The Corporation tank farm is now located within the consolidated tank farm. There were no documented spills at this site, however active leaks were noted during the DCRA Bulk Fuel Inventory conducted in 1998. The tank farm consisted of several vertical and horizontal aboveground tanks with a total fuel capacity of approximately 84,300 gallons. The tanks were welded steel construction and were skid mounted and placed on timbers directly on the tundra. Site assessment performed in August 2001. The tank farm was unlined and had no containment berm. The area outlined by the former Chefarnmute Corporation tank farm was filled with dead and stressed vegetation. This may have been the result of contamination or shading of the ground by the tanks. Analytical sample results from the hand auger sample locations indicate DRO concentrations ranged from 37.5 mg/kg to 1,070 mg/kg(note: GRO and BTEX was not analyzed). The contact for this site was Jack Wiseman who was the acting manager for the Chefarnmute Corporation.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 4/9/2002 | Update or Other Action | Date of Village of Chefornak Site Assessment Project Report by Oasis which led to this contaminated site listing. Report contained in 2408.38.000 (Chefornak Village Tank Farms and Former Tank Farms). | Keather McLoone |
| 4/10/2003 | Site Added to Database | DRO Contamination. | Deborah Williams |
| 3/2/2004 | Update or Other Action | This site was inventoried during a TAPL site recon. Any work to be performed by ADEC is no longer possible due to loss of funding from Alaska Energy Authority. | Mike Jaynes |
| 7/14/2004 | Update or Other Action | File number changed from 2408.42.001 to 2408.38.002 | Sarah Cunningham |
| 11/28/2006 | Update or Other Action | Staff reassigned from Pikul to Jaynes. | Aggie Blandford |
| 3/17/2008 | Exposure Tracking Model Ranking | Initial ranking with ETM completed. | Bill O'Connell |
| 8/22/2012 | Potentially Responsible Party/State Interest Letter | PRP letter sent to the Chefarnrmute Corporation on this date. | Grant Lidren |
| 9/14/2012 | Site Characterization Workplan Approved | On this date ADEC approved the workplan for soil sampling at Chefornak Light Plant Former Tank Farm and Former Chefarnmute Corporation Tank Farm. Sixteen Soil borings will be advanced and one analytical soil sample will be collected from each borehole. | Grant Lidren |
| 9/18/2012 | Site Visit | ADEC performed a site visit on this date during characterization work by S&W. | Grant Lidren |
| 4/24/2013 | Site Characterization Report Approved | On this date, ADEC received the Site Characterization Chefornak Light Plant Former Tank Farm and Former Chefarnmute Corporation Tank Farm submitted by S&W dated December 2012. A total of 17 soil borings were advanced: nine at the Light Plant former TF (1.5 to 3.0 feet bgs) and eight at the Chefarnmute Corp. former TF (1.2 to 4 ft. bgs). At least one soil sample was collected per boring based off pid levels and field observations. Three of the nine soil samples collected at the Light Plant former tank farm contained DRO above cleanup levels. These soil samples - including B8, B8 dup, and B7 - contained DRO up to 643 mg/kg. Two of the nine soil samples collected at the Chefarnmute Corp. former TF contained DRO above cleanup levels. These soil samples - including B10 dup and B15 - contained DRO at 262 mg/kg (at 2.5 to 3.0 ft. bgs) and 18,600 mg/kg (at 1.5 to 2.0 ft. bgs) respectively. | Grant Lidren |
| 6/30/2015 | Update or Other Action | File review completed. No new information available. SUMMARY: Contamination was originally identified during a Village of Chefornak Site Assessment Project completed in August 2001. The purpose of the site assessment was to investigate the presence and extent of contamination at five former bulk aboveground storage tank (AST) facilities in Chefornak. During the assessment, limited sampling was completed and revealed that diesel range organic (DRO) was present in the surface soils up to 1,070 mg/kg at this site, which exceeds the ADEC migration to groundwater (MTG) cleanup level of 250 mg/kg. Further characterization was completed in 2012 by the City of Chefornak. Soil samples were collected from 8 soil borings that were advanced to depths between 1.5 and 3 feet below ground surface (bgs). DRO was present in all soil samples (except one) between 37.2 mg/kg and 262 mg/kg. One soil sample exhibited a level of DRO at 18,600 mg/kg, but other samples collected in the vicinity are much lower in concentration. | Joshua Barsis |
| 10/26/2015 | Update or Other Action | Letter sent with request for work plan by February 1, 2016. | Joshua Barsis |
| 9/14/2016 | Update or Other Action | Sent letter requesting work plan by 12/1/2016 to Chefarnmute Inc. | Erin Gleason |
| 9/14/2016 | Update or Other Action | Sent overdue work plan notice to City of Chefornak. | Erin Gleason |
| 11/21/2016 | Exposure Tracking Model Ranking | A new updated ranking with ETM has been completed for source area 74754 Former ASTs. | Erin Gleason |
| 11/23/2016 | Update or Other Action | Sent letter to Nateraq Light Plant (Chefarnrmute, Inc.) with an update on the site, information about brownfield funding, and reminder about the work plan due date. | Erin Gleason |
| 12/4/2017 | Update or Other Action | sent overdue work plan notice to Naterkaq (Chefarnmute Inc). | Erin Gleason |
| 12/5/2017 | Update or Other Action | Overdue work plan letter sent to City of Chefornak | Erin Gleason |
| 4/30/2021 | Update or Other Action | Updated and verified site location. Location (lat/long) on CSP database was 60.159972 -164.285851. I updated the coordinates on the CSP database to reflect sampled location (B-11) where DRO concentrations were greater than 1000 mg/kg. GPS coordinates were gathered from 2012.12Characterization Rpt (located in the following folder: \\An-svrfile\groups\SPAR\CS\38 FilesCS\2408 Chefornak\2408.38.005 Chefornak Chefarnrmute Corp Tank Farm\Older Documents). | Ginna Quesada |
Contaminant Information
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Control Type
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Requirements
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No associated sites were found.