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Site Report: Chinook Service Station

Site Name: Chinook Service Station
Address: 66725 Oil Well RoadMi. 136.5 Sterling Hwy, Ninilchik, AK 99639
File Number: 2325.26.002
Hazard ID: 23232
Status: Active
Staff: Peter Campbell, 9072623412 peter.campbell@alaska.gov
Latitude: 60.039500
Longitude: -151.675400
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

During a site assessment that was conducted prior to the sale of the facility, petroleum contamination was discovered that originated from two underground storage tanks (USTs) that had been out of service for several years. After sale of the property, during a subsequent release investigation done in 2001, gasoline contaminated soils were encountered around the fuel dispensing island. Shallow soils documented gasoline range organics (GRO) and benzene levels which exceeded the soil cleanup levels identified in Tables B1 and B2 of Method Two. Additional assessment activities confirmed groundwater contamination in vicinity of the fuel dispensing island. NOTE: This facility was also previously listed under the spill number 2001230033701 and event ID #2839. Both spill numbers refered to the same site so the database was modified to show only the current listing for this site. The file may contain correspondance with both spill numbers. (MTE 2/6/2006)

Action Information

Action Date Action Description DEC Staff
3/17/1992 Underground Storage Tank Site Characterization or Assessment SA1R; ADEC reviewed site assessment report and informed RP that the tanks would need to be removed and further site assessment/corrective action conducted. Former Staff
3/17/1992 Leaking Underground Storage Tank Release Confirmed - Petroleum LUST Site created in CSP for source area ID 77615 ADD; Former Staff
3/17/1992 Site Added to Database Former Staff
3/18/1992 Leaking Underground Storage Tank Corrective Action Underway LCAR; :Action Date changed DB conversion 1/11/11 Former Staff
4/23/1992 Underground Storage Tank Site Characterization or Assessment Don Fritz sent a letter with review comments from the Site Assessment Report from Rozak Engineering, dated March 16, 1992. Alyce Hughey
5/19/1992 Update or Other Action Don Fritz sent a Notice of Release letter to the Responsible Party. Alyce Hughey
5/20/1992 Leaking Underground Storage Tank Corrective Action Underway Don Fritz sent a corrective action plan approval letter after reviewing the Release Investigation/Corrective Action Plan for Chinook Service Station from Rozak Engineering dated May 17, 1992. Alyce Hughey
12/1/1993 Underground Storage Tank Site Characterization or Assessment SA1R; Site assessment report reviewed by ADEC staff. Former Staff
12/2/1993 Release Investigation RELR; ADEC staff reviewed the release investigation report submitted for additional assessment work conducted. Former Staff
9/9/1995 Update or Other Action CAPR; Reviewed a remedial action plan. Action and date from excel spreadsheet. Former Staff
9/9/1995 Release Investigation SA2A; Reviewed a phase 2 site assessment report. Action and date entered from excel spreadsheet. Former Staff
9/18/1995 Leaking Underground Storage Tank Cleanup Initiated - Petroleum LCAU; LUST corrective action underway. Date from excel spreadsheet. Original date was 3/15/93. Former Staff
11/20/1997 Update or Other Action ADEC sends Notification of Intent to Cost Recover Letter to Current Owner: PRESLEY, INC. Former Staff
2/13/2002 Update or Other Action Gasoline contamination discovered during 9/26/01 piping assessment. Originally entered as a "confirmed release" but that action was deleted because a release had already been confirmed for this event at an earlier date. Bill Janes
2/13/2002 Leaking Underground Storage Tank Corrective Action Underway Paul Horwath sent a letter requesting a Corrective Action plan after reviewing a September 26, 2001 UST Piping Replacement Field Report, from TELLUS, LTD. Alyce Hughey
2/13/2002 Update or Other Action Potentially contaminated soil is stockpiled on site. Monica English
2/13/2002 Underground Storage Tank Site Characterization or Assessment Assessment performed by Scott Erdmann of TELLUS, Ltd. Monica English
2/13/2002 Update or Other Action Notification of petroleum release letter issued to o/o 02/13/02. Monica English
3/14/2002 Leaking Underground Storage Tank Corrective Action Underway CAP received from Rozak Engineering. Monica English
3/20/2002 Leaking Underground Storage Tank Corrective Action Underway Monica English sent a Corrective Action Plan Approval after reviewing the Corrective Action Plan for Release Investigation and Piping Removal from Rozak Engineering, dated 3-13-02. Alyce Hughey
7/2/2002 Release Investigation Release Investigation Report received from Rozak Engineering. Monica English
8/30/2002 Update or Other Action Corrective Action Plan required by DEC. Monica English
8/4/2004 Update or Other Action File number assigned and entered into the Fileroom DB and LUST DB. Alyce Hughey
8/4/2004 Update or Other Action File number assigned and entered into the Fileroom DB and LUST DB. Alyce Hughey
12/22/2004 Update or Other Action Department sends a second request for submittal of a Corrective Action plan. No response was received regarding the first request for a corrective action plan. Deadline for response is Jan. 31, 2005. Monica English
1/26/2005 Leaking Underground Storage Tank Corrective Action Underway A corrective Action plan is submitted by Rozak Engineering to delineate the extent of soil and groundwater contamination associated with contamination encountered during activities performed in 2002. Monica English
3/9/2005 Update or Other Action The department issues approval for the January 2005 Corrective Action Work plan submitted by Rozak Engineering. Monica English
12/21/2005 Update or Other Action Using the Appendix A from the Site Assessment Chinook Service Station, from Rozak Engineering, dated March 16, 1992, in conjunction with TopoZone Pro and the KPB Parcel Lookup, entered the coordinates for this site. Metadata includes No Topo Basemap, TopoZone Pro Street Maps, Black and White Aerial Photo, on a Medium Size Map, View Scale 1:10,000, Coordinate Datum NAD83. High degree of confidence in accuracy of location. Alyce Hughey
1/23/2006 Update or Other Action Corrective Action Report received. Soils and groundwater have been impacted by petroleum hydrocarbons in the vicinity of the dispenser island located along the Sterling Hwy. GRO and benzene contaminants exceed the soil and groundwater cleanup levels. Monica English
2/23/2006 Update or Other Action ADEC comments to the Corrective Action Report by Rozak Engineering. Based on analytical data, a water well search was also requested. Monica English
10/9/2006 Update or Other Action Project manager changed from Monica English to Don Fritz, per Paul Horwath. Alyce Hughey
2/2/2007 Update or Other Action Notified RP of change in project manager. Requested a work plan for: 1. Groundwater monitoring to track migration and trends of contaminants identified with this release. Assessing the current nature and extent of groundwater contamination and for the completion of site cleanup and remediation. 2. Identifying all public and private drinking water wells within a 1/8th mile radius of the Chinook Tesoro facility. If available, a well log should also be provided for each well identified within this radius. The location of the monitor wells should be depicted on a diagram. The department will make a determination regarding whether any of the drinking water wells will need to be sampled based on the location of the wells and the well logs (if available). Requested update on the status of the vapor extraction well. Don Fritz
2/9/2007 Exposure Tracking Model Ranking Baseline ranking completed Don Fritz
11/16/2011 Update or Other Action Site transferred from Don Fritz to Peter Campbell per Paul Horwath. Alyce Hughey
12/7/2011 Document, Report, or Work plan Review - other Reviewed the Report for Remedial Action Work Performed in 2007, dated April 30, 2008 from Rozak Engineering. On June 3, 2007 a survey of the drinking water wells within 1/8th mile radius was performed. Fourteen drinking water wells were located, with the onsite well located 200 feet east of the source area was installed to a depth of 90 feet and static water level at 62 feet. The parcel closest to the source areas drinking water well, just northwest of site approximately 190 feet northwest was installed to a depth of 280 feet and static water level is 80 feet. The groundwater samples taken from the three monitoring wells detected Benzene at concentrations of 0.00174 mg/L to 0.0230 mg/L. The SVE activated fan attached to the top could rotate but wind during the site visit was not strong enough to spin the fan. The readings taken within the SVE well detected oxygen at 12.5%, lower explosive level was 100% and the volatile Petroleum Hydrocarbon reading exceeded 1,000 ppm. The three cubic yards of soil cuttings stockpiled on site were sampled with results of 174 and 94 ppm GRO and 88 and 45 ppm DRO. Additional fertilizer (16-16-16) was spread and mixed with a shovel and then the cover was replaced and secured. Alyce Hughey
1/9/2012 Document, Report, or Work plan Review - other File review and request for an update on actions taken since 2007. Letter to Chinook Service Station owner requesting further assessment and/or remediation as stated in 2007 work plan. Requested response to our letter by January 30, 2011. Peter Campbell

Contaminant Information

Name Level Description Media Comments

Control Type

Type Details

Requirements

Description Details

No associated sites were found.

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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
Physical Location: 410 Willoughby