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Site Report: Tesoro - Northstore #115

Site Name: Tesoro - Northstore #115
Address: 99 College Rd, Fairbanks, AK 99701
File Number: 102.26.132
Hazard ID: 24619
Status: Cleanup Complete - Institutional Controls
Staff: IC Unit, 9074655229 dec.icunit@alaska.gov
Latitude: 64.854360
Longitude: -147.712670
Horizontal Datum:

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 assessment activities associated with the closure of an underground storage tank system, petroleum hydrocarbon contaminated soils and groundwater were encountered in the former tanks excavation. Excavated contaminated soils (~341 cubic yards) were taken to Environmental Systems, Inc. for thermal remediation and disposal. Contaminants of concern include gasoline range organice, diesel range organics and benzene.

Action Information

Action Date Action Description DEC Staff
10/8/1997 Leaking Underground Storage Tank Release Confirmed - Petroleum LUST Site created in CSP for source area ID 77130 Release Investigation/Site Assessment to be conducted with UST system upgrade in Spring 1998. Approximately 15 to 20 cubic yards of soil was excavated during the investigation of loose piping connections. This soil was returned to the excavation with ADEC approval. The release investigation of the discovered release will be completed during the required UST system upgrade in Spring 1998. Former Staff
10/8/1997 Site Added to Database Former Staff
11/16/1998 Leaking Underground Storage Tank Cleanup Initiated - Petroleum entered by JC Former Staff
11/16/1998 Underground Storage Tank Site Characterization or Assessment Completed more than 2 years previous. Former Staff
12/14/1998 Leaking Underground Storage Tank Corrective Action Underway Annual meeting determined that SVE pilot test to be initiated, as well as a Well Search. Former Staff
12/23/1998 Release Investigation Continuous RI activities as Gilfilian determines the extent of impact at this site. Former Staff
7/7/1999 Update or Other Action Well search completed and submitted. Former Staff
10/21/1999 Update or Other Action System start-up delayed and will not be activited this year due to low GW concentrations. Former Staff
12/16/2003 Document, Report, or Work plan Review - other September 2003 Monitoring report review. Monica English
1/14/2004 Leaking Underground Storage Tank Corrective Action Underway Approval of 2004 Work plan. Monica English
10/9/2006 Update or Other Action Project manager changed from Monica English to Paul Horwath, per Paul Horwath. Alyce Hughey
1/25/2007 Document, Report, or Work plan Review - other Reviewed MWH's October 25, 2006 Monitoring Well Decommissioning Report for this site. The decommissioning work was reported to have been completed using proper methods. Paul Horwath
1/25/2007 Conditional Closure Approved A Conditional Closure letter was issued July 20, 2006. Conditions of closure include 1) ADEC approval must be obtained prior to removal, transport, or disposal of residual contaminated soil remaining at this site and Tesoro must provide qualified person third party oversight in order to monitor, assess, manage, treat, or dispose of any contaminated soils and, 2) Permanent closure or change in service of the existing USTs must be performed in accordance with 18 AAC 78. Paul Horwath
1/25/2007 Institutional Control Record Established There are areas at this facility where soil contamination remains above the most stringent ADEC soil cleanup levels. Due to this residual soil contamination, the two conditions associated with this closure are: 1) In accordance with 18 AAC 78.274(b), ADEC approval must be obtained prior to removal and/or disposal of contaminated soil from this site. Tesoro shall provide the services of a qualified, impartial environmental professional as required in 18 AAC 78, in order to properly monitor, assess, manage, treat, and dispose of any contaminated soils. Future excavation activities shall be coordinated with ADEC. Tesoro shall provide for the excavation and treatment of any contaminated soils encountered in accordance with all applicable ADEC regulations at that time. 2) Permanent closure and/or change in service for the existing UST system must be conducted in accordance with 18 AAC 78.085. Paul Horwath
11/10/2014 Update or Other Action Staff changed from Paul Horwath to IC Unit. Kristin Thompson
8/18/2015 Institutional Control Compliance Review IC Compliance review conducted. Schedule to send an IC reminder letter to the responsible party. Evonne Reese
8/20/2015 Institutional Control Update An IC reminder letter was issued to the responsible party on this date. Kristin Thompson
6/2/2017 Institutional Control Compliance Review IC compliance review conducted. Closure/IC Details updated. Reminder system set to follow-up every five years, with the next review scheduled for 2020. Kristin Thompson
8/21/2024 Institutional Control Compliance Review IC compliance review completed on this date. An IC reminder letter was e-mailed to the landowner. The next review will be in five years’ time. Gaige Robinson

Contaminant Information

Name Level Description Media Comments
Benzene Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil
Ethylbenzene 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
Xylenes (total) Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil
GRO Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil
DRO Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil

Control Type

Type Details
CS Database Notation And Letter To Landowner/RP Residual soil contamination remains at this site.

Requirements

Description Details
Excavation / Soil Movement Restrictions ADEC approval must be obtained prior to removal and/or disposal of contaminated soil from this site. A qualified, impartial environmental professional is required to properly monitor, assess, manage, treat, and dispose of any contaminated soils. Future excavation activities shall be coordinated with ADEC. Excavation and treatment of any contaminated soils encountered shall be conducted in accordance with all applicable ADEC regulations at that time.
Advance approval required to transport soil or groundwater off-site. Standard condition.
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.
Periodic Review Every five years.
Hazard ID Site Name File Number
26703 Tesoro Northstore #115 Overfill Sump 102.26.180

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
Physical Location: 410 Willoughby