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Site Report: ADOT&PF - Cordova Maintenance Station

Site Name: ADOT&PF - Cordova Maintenance Station
Address: MP 11.7 Copper River Highway, Cordova, AK 99574
File Number: 2215.26.003
Hazard ID: 24629
Status: Cleanup Complete
Staff: ,
Latitude: 60.499661
Longitude: -145.480309
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.


Two UST's, one 3,000 gallon diesel UST, and one 1,000 gallon used oil UST, and a pump island were removed from this site in 1997. Another 3,000 gallon gasoline UST was reportedly removed in the late 1980s, however, no data was collected at the time of this excavation. Approximately 35 cubic yards (cy) of DRO contaminated soil was stockpiled, and roughly 50 cy of soil was returned to the excavations this soil contained up to 2,100 mg/kg DRO and 3,200 mg/kg RRO. Additional information regarding potential contamination at this facility is tracked under the following Contaminated Sites Program database records: Hazard ID 26558, file number 2215.38.030 - Class V injection well. Hazard ID 1305, file number 2215.38.023 - 2005 removal of 20,000-gallon used-oil partially buried tanker car.

Action Information

Action Date Action Description DEC Staff
12/4/1997 Leaking Underground Storage Tank Release Confirmed - Petroleum LUST Site created in CSP for source area ID 77869 * Not Assigned
12/4/1997 Site Added to Database * Not Assigned
1/14/2003 Update or Other Action The files for this project can not be found at this time. Monica English
6/21/2004 Leaking Underground Storage Tank Corrective Action Underway FY04 work will include moving the stockpile; remove tanker car and stockpile approximately 500 CY soil associated with it; install up to 3 well pointsdowngradient from tanker car; sample onsite water well. Sharon Richmond
6/21/2004 Underground Storage Tank Site Characterization or Assessment FY03 work included digging test pits for sampling soil and sampling drinking water well. Sharon Richmond
6/21/2004 Leaking Underground Storage Tank Cleanup Initiated - Petroleum The file for this site was located in Fairbanks. in 1997, a 3,000 gallon diesel UST, a 1,000 gallon used oil UST, and pump island were removed. Another 3,000 gallon gasoline UST was reportedly removed in the late 1980s; no data available. Approximately 35 CY of DRO soil was stockpiled. Approximately 50 CY of soil was returned to the excavations- it contained up to 2,100 mg/kg DRO and 3,200 mg/kg RRO. A 20,000 gallon partially buried tanker car containing used oil was not characterized. Sharon Richmond
8/10/2004 Leaking Underground Storage Tank Corrective Action Underway ADOT contacted DEC to request approval to use soil with low to moderate DRO contamination as road-bed fill. Request was approved but soil was later found to contain pieces of metal that made it unsuitable to process with the rock crusher. Soil will be stockpiled pending approval of treatment method. Sharon Richmond
8/11/2004 Update or Other Action Mark Lockwood called to update PM on site status. Soil will be stockpiled. Possible land farming site avaialble at out of use nearby gravel pit. Sampling report pending David Allen
1/10/2005 Update or Other Action GIS Update, Topozone Pro, Nad83 Kim DeRuyter
9/21/2005 Report or Workplan Review - Other Received UST assessment report. Soil samples taken this summer indicate that soil beneath tanks 1-3 do not exceed ADEC soil cleanup levels. The tanker car was decommissioned and removed from the site this summer. Approximately 500 cubic yards of contaminated soil was excavated and landspread at the Locke Salvage site. MWs downgradient of the former tanker car contained TCE and cis-DCE in excess of cleanup levels. 3 samples of the onsite drinking water well did not contain analytes exceeding their PQLs, or ADEC cleanup levels. Kim DeRuyter
3/5/2007 Update or Other Action Site transferred from Pikul to O'Connell Bill O'Connell
6/21/2007 Update or Other Action Site visit conducted 6/19/07. Yard is generally clean, however there are potential salt storage/runoff issues Bill O'Connell
7/27/2007 Exposure Tracking Model Ranking Initial Ranking completed Linda Nuechterlein
3/20/2008 Update or Other Action NOTE - This site has also been entered into the CS database - cross reference CS file 2215.38.019 for more info. * Not Assigned
4/7/2009 Cleanup Complete Determination Issued The Alaska Department of Environmental Conservation, Contaminated Sites Program (ADEC) has completed a review of the environmental records associated with ADOT&PF- Cordova Maintenance Station located at Mile 10, Copper River Highway in Cordova, Alaska. Based on the information provided to date, the ADEC has determined that the contaminant concentrations remaining on site do not pose an unacceptable risk to human health or the environment, and this site will be closed. Bill O'Connell

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


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

Missing Location Data

Because the GIS location data for this site has not been entered, we cannot direct you to its position on the map. Click "Continue" to proceed to the Contaminated Sites Web Map or "Close" to return to the site report.
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