Division of Spill Prevention and Response

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Site Report: Akiak Old City Tank Farm and Power Plant


Site Name: Akiak Old City Tank Farm and Power Plant
Address: W Bank of Kuskokwim River, Akiak, AK 99552
File Number: 2402.38.005
Hazard ID: 3370
Status: Active
Staff: Joshua Barsis, 9072697691 joshua.barsis@alaska.gov
Latitude: 60.913550
Longitude: -161.220293
Horizontal Datum:NAD83


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 City of Akiak Electric Utility operated this AST farm for the storage and supply of fuel oil for its former power plant. These operations have since been moved to the new consolidated bulk fuel facility in Akiak and to an AST located next to the new power plant. The AST farm is located approximately 1,000 feet from the Kuskokwim River. There is a lined gravel and sand bag dike around the ASTs. There is no fence around this facility. The AST farm consists of two 24,000-gallon, vertical, welded steel, single wall tanks. The ASTs are in fair condition with extensive rust. The ASTs are supported on 12-by-12 inch timbers with 2-by-12-inch planking. ADEC site visit indicates two source areas of contamination: the Old City Power Plant (green generator building) and the Old City vertical ASTS. At the vertical ASTs a spill of 250 gal occurred 7/10/1999. During spill cleanup the liner may have been torn. Extent of cleanup unknown. A soil sample collected on 10/20/2000, at 3.5 feet bgs, on the south side of the AST farm, contained DRO up to 5,700 mg/kg. Contaminated soil and/or stockpile remains at the ASTs evident by analytical, visual and olfactory senses. At the Power plant, more than twenty 55 gal. waste oil drums, a 5 gal. Uncovered waste oil pail, Pools of oil noted on liner, and staining and petroleum odor, were noted during an ADEC site visit on 10/13/1999. The Akiak Native Community, a member village of the Middle Kuskokwim Consortium, which has a Tribal Response Program (brownfield) grant from EPA, applied to DEC's Reuse and Redevelopment (R&R) Program for a DEC Brownfield Assessment (DBA) of the Akiak Old Power Plant, which is located about 200 feet from the old city tank farm. A Brownfield file was set up for work through the R&R Program at this site, the cross-reference number for this file is 2402.57.001.



Action Information

Action Date Action Description DEC Staff
10/13/1999 Site Visit ADEC site visit indicates two source areas of contamination: the Old City Power plant (green generator building) and the Old City vertical ASTs. At the vertical ASTs a spill of 250 gal occurred 7/10/1999. During spill cleanup the liner may have been torn. Extent of cleanup unknown. A soil sample collected on 10/20/2000, at 3.5 feet bgs, on the south side of the AST farm, contained DRO up to 5,700 mg/kg. Contaminated soil and/or stockpile remains at the ASTs evident by analytical, visual and olfactory senses. At the Power plant, more than twenty 55 gal. waste oil drums, a 5 gal. Uncovered waste oil pail, Pools of oil noted on liner, and staining and petroleum odor, were noted. Grant Lidren
1/3/2001 Report or Workplan Review - Other On this date, ADEC received Akiak AST Tank Farm Site Reconnaissance, dated December 2000, submitted by Eco. & Envi, Inc. A soil sample collected on 10/20/2000, at 3.5 feet bgs, on the south side of the AST farm, contained DRO up to 5,700 mg/kg. Grant Lidren
4/17/2003 Site Added to Database DRO contamination. Deborah Williams
4/17/2003 Site Ranked Using the AHRM Preliminary ranking. Deborah Williams
11/29/2006 Update or Other Action Site transferred from Pikul to Jaynes. Aggie Blandford
5/9/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed. Grant Lidren
12/2/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 74345 name: Old AST Farm Grant Lidren
3/2/2009 Brownfield Inventory The Akiak Native Community, a member village of the Middle Kuskokwim Consortium, which has a Tribal Response Program (brownfield) grant from EPA, applied to DEC's Reuse and Redevelopment (R&R) Program for a DEC Brownfield Assessment (DBA) of the Akiak Old Power Plant, which is located about 200 feet from the old city tank farm. A Brownfield file was set up for work through the R&R Program at this site, the cross-reference number for this file is 2402.57.001. Sonja Benson
7/24/2009 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 78799 name: Power Plant Grant Lidren
9/10/2009 Brownfield Confirmed Notice to proceed was awarded to SLR through SPAR term contract. Project managed under Reuse and Redevelopment Program. Deborah Williams
9/28/2009 Site Visit An initial site visit, performed by SLR, was completed on September 28 & 29 2009 before site work scheduled for the week of October 26, 2009. The building, which was impacted by flooding in 2009, contains two generators, two transformers, as least four batteries, 70-five gallon buckets containing petroleum, and the floor was stained. Outside the building a transformer, an old generator, debris and stressed vegetation was noted. Two ASTs, associated with the Old Power Plant were found lying down outside of their containment. No soil staining was noted, but one of the tanks may contain a small amount of petroleum. Grant Lidren
2/17/2010 Update or Other Action Communication with SLR on this date indicates ADEC will receive a draft report for the Property Assessment and Cleanup Plan (PACP) for the Akiak Old City Tank Farm and Power Plant within a week or two. The work for the PACP was completed fall of 2009. Grant Lidren
3/2/2010 Update or Other Action DEC received a draft PACP report for the Akiak Old City Tank Farm and Power Plant. The potential source areas that were identified in the report were the following: The ground beneath and around the ASTs and the fuel pipeline; the west side of the power plant building in the area of a former used-oil storage area where stressed vegetation was observed in 2009; the area beneath and surrounding hazardous materials (consisting of old mechanical devices and other debris, approximately 70 5-gallon waste oil containers, lead-acid batteries, generators, and transformers. Characterization is required at the site to determine the extent of soil and groundwater contamination. Deborah Williams
4/28/2010 Update or Other Action On This date, ADEC received the final report for the PACP Old City Tank Farm and Power Plant Akiak Alaska, submitted by SLR, dated April 2010. Grant Lidren
9/1/2010 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 78799 Power Plant. Deborah Williams
12/8/2011 Potentially Responsible Party/State Interest Letter PRP letter sent to the City of Akiak on this date. Grant Lidren
1/20/2012 Update or Other Action ADEC received phone call from the City of Akiak on this date. They plan on having meeting with City to discuss contaminated sites. Grant Lidren
5/10/2013 Site Visit The Solid Waste Program performed a site visit during the week of May 6th.Inside the green old generator building (unlocked and easily accessible) were many 5 gallon buckets of used/waste oil, transformers, equipment, etc. Very noticeable oil smell. Grant Lidren
12/18/2013 Update or Other Action DEC held a meeting with the RP and six tribal council members on Wednesday December 18, 2013. During the meeting, the RP indicated that the old tank farm above ground storage tanks (ASTs) were removed from the site. He also indicated that 2 generators, 5 transformers, 20 batteries, and 47 5-gallon containers (of which approximately 15 contain liquid) were identified on the site and in the power plant building. He mentioned that a small dump truck, excavator, loader, and dozer were available and working in the city of Akiak. The RP and village council is very excited to begin a characterization at this site; however, they have no available funding. They are currently planning on contacting their legislator for funding for site cleanup. Joshua Barsis
11/24/2015 Update or Other Action RP has allocated funding towards the investigation and cleanup of this site. More information to come. Joshua Barsis

Contaminant Information

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Requirements

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