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Site Report: Former Kongiganak School Tank Farm

Site Name: Former Kongiganak School Tank Farm
Address: 125' North of the School, 200' SE of Kongiganank R., Kongiganak, AK 99559
File Number: 2454.38.004
Hazard ID: 4015
Status: Cleanup Complete - Institutional Controls
Staff: IC Unit, 9074655229 dec.icunit@alaska.gov
Latitude: 59.960005
Longitude: -162.887552
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

16 ASTs removed in 2003 tank demolition project. Two smaller tanks remain in place on the north side of the site. 14 of the tanks were located on raised wooden platforms. A lined containment area was found under both platforms. The liner was badly damaged and discontinuous. All water that is captured in the containment area is directed to the southeast corner of the tank yard to a bermed holding area. The area is roughly 45' long by 25' wide and is not lined. Any historical leaks from tanks or piping would most likely have been channeled to this area. A small pad that contained two tanks is on the east side of the site. The pad is lined and surrounded by a lined containment berm. Staining was found on the west side of the two-tank pad on the soil outside of the containment area. It appears that these tanks are part of six tanks that belong to the Puvurnaq Power Company. These tanks were combined with the school tank farm for the purposes of tank demolition. These tanks are not part of the LKSD site. The area north of the site currently contains two small horizontal fuel tanks and some full and partially full 55 gallon drums. This area of dark staining to the soil has a strong hydrocarbon odor. A hydrocarbon sheen was also present on standing water in the area. The area is approximately 50' across and 60' long. These tanks are not part of the LKSD site. Site located at the east edge of the residential part of town. Site needs determination of the responsible party and landowner. Latitude and longitude are speculated at this time. Better location information needed. The responsible party appears to be the Lower Kuskokwim School District (LKSD) see updated affiliates tab. (01-09) Updated problem statement (as it pertains to Tank Farm 2) from Oasis Work Plan dated 6-23-2003: Tank Farm 2 is owned by the LKSD. The LKSD tank farm consisted of 10 tanks surrounded by a dirt berm and fence. One piping leak was noted during the initial survey in 4-03, no further detail was provided. All tanks were removed during the April 2003 tank demolition project. Note: discrepancy in number of tanks - seems to be due to the additional 6 tanks that were owned by Puvurnaq Power Company adjacent to the LKSD tank farm that were added to the 10 tanks owned by LKSD this total would equal the 16 tanks that were removed in the 2003 tank demolition project in what Oasis' final report 10-20-03 calls Tank Farm 2. ADDITIONAL INFORMATION: Two reports of spills near the generator shack of the Kongiganak School were submitted by LKSD (this is the school site that is to be vacated 12-09, when they move into their new school building). A 15-gallon heating oil spill in April 1995 was never entered in the SPAR PERP database. In April 2003 a 450-gallon heating oil spill happened; 400-gallons of that spill were captured and reused. SPAR PERP closed the spill out of their database, as cleaned up, and did not transfer it to CS.

Action Information

Action Date Action Description DEC Staff
1/23/2004 Site Added to Database Soil staining and associated hydrocarbon odor detected in three areas of the site. Former Staff
1/23/2004 Site Ranked Using the AHRM Preliminary ranking. Will need to be updated after further site characterization. Former Staff
9/20/2005 Update or Other Action File number updated 2454.38.002. Aggie Blandford
11/29/2006 Update or Other Action Staff transferred from Pikul to Jaynes. Aggie Blandford
5/27/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed. Keather McLoone
1/16/2009 Update or Other Action Updated affiliates tab and problem statement. Pam Clemens
1/29/2009 Update or Other Action The new file number for this site is 2454.38.004, with the new name of Former Kongiganak School Tank Farm. Also see 2454.57.001 Kongiganak School (file in Fairbanks). This site has been separated out from the hard copy file that is in Anchorage for file #: 2454.38.002, for: Kongiganak Qemirtalek Coast Corporation Tank Farm RECKEY: 200350112001 & hazard ID is 4014. Pam Clemens
3/2/2009 Update or Other Action Recieved and reviewing response to RPF from Oasis Environmental. Pam Clemens
4/2/2009 Proposed Plan Received draft work plan from Oasis Environmental. Requested minor changes after review. (NTP to Oasis approved by RFA) Pam Clemens
4/10/2009 Site Characterization Workplan Approved Contacted Ben Martich with Oasis Environmental to approve the final site characterization workplan. Pam Clemens
5/13/2009 Exposure Tracking Model Ranking Initial ranking with ETM corrected for source area id: 74989 name: TankFarm stain Pam Clemens
5/22/2009 Update or Other Action Oasis staff Lisa Nickelson will be going to Kongiganak on 5-26-09 for a three day investigation of the former school tank farm area. Pam Clemens
6/22/2009 Update or Other Action The investigation has been completed but the final report will not be in to ADEC until after July, 2009. The NTP issused for Kongiganak has been amended to extend the end date to 6-30-10, dollar amount to remain the same. Pam Clemens
8/27/2009 Document, Report, or Work plan Review - other Reviewed the Oasis Site Characterization Final Report Former Kongiganak School Tank Farm, submitted 8-20-09, with corrections submitted 8-25-09. DRO was found in three of the ten test pits up to 2,730 mg/kg. Only one surface detection of benzene at 0.0866 mg/kg, at 2 feet bgs, that is most likely due to vehicle traffic near the old tank farm platform. There was also one detection of toluene at 6 feet bgs that the Oasis chemist said was due to biogenic interference. The LKSD wants to keep the platform to use as a storage facility for a water tank. The DRO, benzene and toluene values are below the health based ingestion and inhalation levels. Groundwater is not used in this community as a drinking water source. Pam Clemens
8/31/2009 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 74989 TankFarm stain. Pam Clemens
9/4/2009 Update or Other Action Received the corrected pages 13 & 14 and added them to the report, also received two new CDs of the final report. Approved the final report. Pam Clemens
9/17/2009 Institutional Control Record Established Upon review of the records for this site it was determined that there is no unacceptable risk to human health or the environment, and the site was granted a cleanup complete determination with institutional controls. ROD attached to database. Pam Clemens
9/17/2009 Institutional Control Record Established Institutional Controls established and entered into the database. Pam Clemens
4/4/2011 Update or Other Action Placed two photographs in file that were taken September 11, 1996 by Bob Dreyer; showing the old LKSD tank farm. Pam Clemens
11/15/2011 Update or Other Action Received via email a signed copy of Attachnent A (from Sept. 16, 2009 Cleanup Complete-ICs Letter). Attachment A with 9/16/09 CC-IC determination was placed in the project file. Linda Nuechterlein
4/4/2012 Institutional Control Compliance Review IC review conducted, reminder system initialized, and staff name changed from Nuechterlein to IC Unit. Evonne Reese
9/17/2014 Institutional Control Update An IC reminder letter was issued to the responsible party on this date. Kristin Thompson
6/19/2018 Institutional Control Compliance Review IC compliance review conducted. Closure/IC Details updated. Reminder system already set for next follow-up in 2019. Kristin Thompson
11/14/2019 Institutional Control Compliance Review An Institutional Controls reminder letter e-mailed to the landowner on this date. Mossy Mead
1/21/2020 Brownfields Award FY 2009 SOA CIP funds $34,233 awarded to Native Village of Kongiganak Traditional Council for an EMP/screening for the Kongiganak School. NTP# 18902813077. Report in file prepared for ADEC, site closed. Cascade Galasso-Irish
6/16/2021 Update or Other Action Coordinates on CSP application updated with figures in site file and satellite imagery. Previous coordinates were in the river on the CS and BLM map for ANCSA contaminated sites due to lack of Datum. Old coordinates (while not matching coordinates on CS map) were also incorrect on CSP application (lat long: 59.961111 162.887222). Ginna Quesada

Contaminant Information

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

Control Type

Type Details
Signed CS Determination The RP - Lower Kuskokwim School District (LKSD) will sign the Agreement page in the closure letter and return it to ADEC. LKSD agrees to a five year reporting timeframe unless land use changes prior to that; LKSD will request approval from ADEC before they install groundwater wells or transport soil off site.

Requirements

Description Details
Advance approval required to transport soil or groundwater off-site. Standard condition.
Groundwater Use Restrictions Future installation of groundwater wells require prior approval from ADEC.
Other LKSD shall report to ADEC every five years to document land use, or report as soon as they become aware of any change in land ownership and/or use.
Movement or use of contaminated material (including on site) in a manner that results in a violation of the water quality standards is prohibited (18 AAC 70) Standard condition.

No associated sites were found.

Missing Location Data

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State of Alaska Department of Environmental Conservation

P.O. Box 111800
Juneau, AK 99811-1800
Phone: 907-465-5066
Fax: 907-465-5245
TDD: 800-770-8973
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