Skip to content Skip to content

Alaska Department of Environmental Conservation

You are here: DEC / SPAR / CSP / SPAR Online Services / Contaminated Sites Search / Site Report

Site Report: Kenworth Alaska (former Alaska Truck Center)

Site Name: Kenworth Alaska (former Alaska Truck Center)
Address: 2262 Van Horn Road, Fairbanks, AK 99701
File Number: 102.38.178
Hazard ID: 26164
Status: Active
Staff: Laura Jacobs, 9074512911 laura.jacobs@alaska.gov
Latitude: 64.813657
Longitude: -147.775312
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

Approximately 190 cubic yards of DRO-contaminated soil were excavated in 2012 from the adjacent property, northwest of the main shop building of the former Fairbanks Welding lot (2260 Van Horn Road, Megarian Industrial Technology, Inc., Hazard ID 24182, file no. 102.26.019). Contamination was observed to extend from approximately 2 feet below ground surface (bgs) to 7 feet bgs. Confirmation samples were collected from the excavation sidewall adjacent to the property boudary (between 2260 and 2262 Van Horn Road) and indicated DRO to 3,220 mg/kg remains and likely extends offsite onto 2262 Van Horn Road, Kenworth Alaska (former Alaska Truck Center). Site investigations in 2013 at 2260 Van Horn Road indicate groundwater may flow from Kenworth (2262 Van Horn Road) onto the former Fairbanks Welding lot (2260 Van Horn Rd), at least for part of the year. A limited Phase II investigation was conducted at 2262 Van Horn Road during 2003 revealing some surface petroleum contamination near UST/ASTs but no samples were collected near the property boundary. An aerial photo from 1999 indicates a former garage (former Alaska Truck Center) was located on the 2262 property. Historic soil and/or groundwater contamination is suspected on the 2262 Van Horn Road lot that my extend onto the 2260 Van Horn Road lot Magarian Industrial Technology, Inc.(former Fairbanks Welding). In June 2014, approximately% 300 cubic yards of contaminated soil was excvated. The excavation area was approximately 40 by 45 feet in size, extending along the eastern property boundary and the extent of the 2012 excavation on the adjacent property).Diesel impacted soil was encountered from approximately 2 to 8 feet below ground surface (bgs). The diesel contaminated soil removed from the excavation was transported to the adjacent property to the east for remediation via landfarming.

Action Information

Action Date Action Description DEC Staff
12/4/2013 Site Added to Database A new site has been added to the database Mitzi Read
4/4/2014 Document, Report, or Work plan Review - other Received Work Plan for soil excavation, landfarming, and monitoring well installation Jim Fish
4/11/2014 Cleanup Plan Approved Cleanup plan for DRO excavation, land farming (with 500 mg/kg DRO cleanup level), and monitoring well installation & groundwater monitoring program approved. Jim Fish
7/31/2014 Site Characterization Workplan Approved Work plan for addtional soil borings, three monitoring well installations, and groundwater monitoring during September, 2014 approved (contingent that at least one groundwater sample be analyzed for GRO/RRO, BTEX and PAHs). Jim Fish
12/24/2014 Update or Other Action Received 2014 soil excavation report Jim Fish
3/16/2015 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 79724 name: Former Shop - Petroleum Jim Fish
6/15/2015 Cleanup Plan Approved Cleanup plan for 2015 approved, involving additional soil excavation, treatment of DRO-contaminated soils by landfarming, a proposed DRO soil cleanup level of 500 mg/kg, and installation of an additional down gradient groundwater monitoring well. Jim Fish
2/9/2016 Document, Report, or Work plan Review - other 2015 Remedial Excavation and Groundwater Monitoring Report received. Laura Jacobs
4/9/2016 Cleanup Plan Approved Gave consultant for RP email approval for 2016 work plan. Laura Jacobs
8/1/2016 Document, Report, or Work plan Review - other Consultant reported results from multi-increment sampling of landfarmed soils offsite of the contaminated site soils were from. DRO samples were analyzed with the silica gel cleanup to minimize interference. Results were 112, 125, and 108 mg/kg, well below the 250 mg/kg cleanup level. Permission was granted to spread this 1 foot lift from the landfarm onto another part of the property for leveling and grading the surface. Laura Jacobs
5/16/2017 Document, Report, or Work plan Review - other Received "2016 Groundwater and Landfarm Monitoring Report for 2262 Van Horn Road in Fairbanks, Alaska". Laura Jacobs
5/22/2017 Conceptual Site Model Submitted ResCon submitted an updated Conceptual Site Model to append to their 2016 report. Laura Jacobs
6/13/2017 Document, Report, or Work plan Review - other DEC sent review comments to the RP and Rescon their consultant for the work conducted on site in 2016. Landfarmed soil sample results indicated the top 12 inches were below DEC's clean up levels for DRO, and were approved for re-use as fill. DRO remains above DEC clean up levels at two of the groundwater monitoring wells and DEC agrees to another year of monitoring. Statistical comparison of data should be conducted to examine whether the plume is steady state or shrinking. Laura Jacobs
5/10/2018 Document, Report, or Work plan Review - other DEC staff reviewed the report "2017 Landfarm and Groundwater Monitoring Report, 2262 Van Horn Road, Fairbanks, Alaska". Results from samples collected from the Arvilla Street landfarm indicate the soil is below the DEC soil cleanup level of 250 mg/kg and was approved to be used for grading and backfilling on the 2443 Arvilla Street property. Groundwater samples from the seven monitoring wells resulted in overall decrease in levels of Diesel Range Organics. However, the results from two wells (MW-11 and MW-15)were still above the DEC cleanup level for groundwater. Laura Jacobs
5/10/2018 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 79724 Former Shop - Petroleum. Laura Jacobs
4/9/2019 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 79724 Former Shop - Petroleum. Laura Jacobs
12/17/2019 Document, Report, or Work plan Review - other ADEC staff completed a review of the annual groundwater monitoring report submitted by ResCon on behalf of the RP. Diesel range organics (DRO) were found elevated in all of the monitoring wells on site during the 2018 sample event after years of a downward trend. Only wells MW-11 and MW-15 had DRO levels that were above the ADEC groundwater cleanup levels. ADEC agrees with ResCon's recommendation to continue to sample until there are three consecutive sample events with DRO levels below the ADEC cleanup level. ADEC also recommends decommissioning all other monitoring wells on the site, and sampling MW-11 and MW-15 on a bi-annual basis until site closure is possible. Laura Jacobs
8/31/2020 Update or Other Action QEP called with an update for sample plans; wells will not be decommissioned this year. Two wells will be sampled for 2020. Plans for decommissioned wells will be sent in 2021. Laura Jacobs
7/7/2021 Document, Report, or Work plan Review - other Groundwater was sampled in October 2020 and documented increased diesel range organics in both wells sampled (MW-11 and MW-15) at 6.67 and 4.2 mg/L respectively. Additional groundwater monitoring will occur in 2022 and will occur until concentrations are below the ADEC cleanup level in groundwater. Laura Jacobs
12/11/2023 Document, Report, or Work plan Review - other DEC reviewed and approved the 2022 Groundwater Monitoring Report received November 7, 2023. Groundwater samples collected from MW-11, MW-15 were analyzed for diesel range organics (DRO), residual range organics (RRO), gasoline range organics (GRO), benzene, toluene, ethylbenzene, and xylenes (BTEX). Cleanup levels continue to be exceeded for diesel range organics (DRO). Groundwater levels appear to be linked to the continued elevation contamination levels as contaminants attenuate through time. Laura Jacobs

Contaminant Information

Name Level Description Media Comments

Control Type

Type Details

Requirements

Description Details

No associated sites were found.

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.
Continue     Close

Public Notices  •  Regulations  •  Statutes
Press Releases  •  Contact

 

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