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Site Report: Construction Machinery Inc former CJM Construction

Site Name: Construction Machinery Inc former CJM Construction
Address: 1949 Ada Street / 2615 20th Avenue, Fairbanks, AK 99701
File Number: 102.38.144
Hazard ID: 4436
Status: Active
Staff: Rebekah Reams, 9074512144 rebekah.reams@alaska.gov
Latitude: 64.829696
Longitude: -147.783660
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

Class V Underground Injection Control (UIC) well regulated by the US Environmental Protection Agency (EPA) was closed in accordance with EPA regulations. Soil and groundwater contamination related to the Class V UIC well remains at the site above DEC cleanup levels. Diesel range organics (DRO), residual range organics (RRO), isophorone, benzene, tetrachloroethene (PCE), and arsenic were found to be above DEC migration to groundwater cleanup levels. DRO was present at up to 11,900 mg/Kg; RRO at up to 17,300 mg/Kg; isophorone at up to 8.53 mg/Kg; benzene at up to 0.0235 mg/Kg; PCE at up to 0.177 mg/Kg; and arsenic at 5.24 mg/Kg. Although arsenic was present at a concentration above cleanup level, it was below typical background levels for the Fairbanks area. Groundwater sampling conducted in March 2012 reported DRO (33.7 mg/L), RRO (2.51 mg/L), xylenes (0.226 mg/L), 1,2,4-Trimethylbenzene (0.0578 mg/L), and naphthalene (0.0292 mg/L) exceeded groundwater cleanup levels. Several other VOCS were detected below cleanup levels during this monitoring event. Property also has a LUST file 102.26.130.

Action Information

Action Date Action Description DEC Staff
7/9/2007 Exposure Tracking Model Ranking Initial ranking completed. Mitzi Read
7/9/2007 Site Added to Database Site added to the database. Mitzi Read
8/9/2011 Update or Other Action ADEC received documentation from EPA that the Class V underground injection control well has been officially closed per EPA regulations. Contamination remaining at the site will be addressed with ADEC. Catherine Glover
8/30/2011 Long Term Monitoring Established Reviewed site characterization report submitted by Nortech. Nortech proposed annual sampling in November or December of CMI-21 until three years of stable/decreasing results are acheived. Sampling was not completed in 2008 or 2009. Letter sent to CMI requesting annual sampling of CMI-21 for DRO, RRO, and VOCs. Janice Wiegers
10/14/2011 Potentially Responsible Party/State Interest Letter PRP letter sent to Chee Kong Toh at CMI in Anchorage. Contact Mr. by phone regarding letter. Janice Wiegers
3/7/2014 Update or Other Action DEC met with Nortech. Nortech indicated ground water samples collected 12/2012. Report will be submitted by April. Laurel Gale
6/30/2016 Update or Other Action Contacted consultant regarding overdue monitoring report. Janice Wiegers
5/3/2017 Update or Other Action Emailed consultant to check on status of overdue monitoring report. Janice Wiegers
4/26/2019 Workplan Requested DEC sent correspondence requesting site characterization work plan by June 15, 2019. Megan Roberts
7/8/2019 Update or Other Action Deadline for site characterization workplan was extended to July 13, 2019. Megan Roberts
10/16/2019 Update or Other Action March 2012 Groundwater Sampling Results Report and 2019 Field Activities Work Plan were submitted by NORTECH on this date. Rebekah Reams
1/17/2020 Site Characterization Workplan Approved The Work Plan for 2019 Field Activities submitted by NORTECH was approved on this date after comment resolution. Rebekah Reams
6/30/2021 Update or Other Action DEC sent correspondence (via email and mail) requesting the Construction Machinery, Inc. submit a report documenting the work completed under the Work Plan for 2019 Field Activities that was approved on January 17, 2020. Rebekah Reams
8/25/2021 Update or Other Action DEC sent correspondence (via email and mail) requesting the Construction Machinery, Inc. submit a report documenting the work completed under the Work Plan for 2019 Field Activities that was approved on January 17, 2020. Rebekah Reams
9/3/2021 Update or Other Action DEC received the Vapor Extraction System Installation and Operation report, Groundwater Monitoring report documenting the January 2020 sampling event, and a letter verifying the decommissioning of the water supply well at this site. Rebekah Reams
12/1/2021 Document, Report, or Work plan Review - other DEC sent correspondence commenting on the January 2019 Groundwater Monitoring Report and the Vapor Extraction System Installation and Operation Report submitted on September 2, 2021. Rebekah Reams
3/17/2023 Update or Other Action DEC sent correspondence requesting response to comments and the revised Vapor Extraction System Installation and Operation Report and the January 2019 Groundwater Monitoring Reports for this site by April 28, 2023. Rebekah Reams
5/15/2023 Update or Other Action DEC requested an update on the status of the response to comments and revised Groundwater Monitoring Report and the Vapor Extraction System Installation and Operation Report which were submitted to DEC on September 2, 2021. Rebekah Reams
6/13/2023 Meeting or Teleconference Held DEC met with NORTECH to discuss DEC's September 2, 2021 report correspondence and the path forward at this site. Discussed the need for additional groundwater characterization to be completed through more frequently scheduled groundwater monitoring events at the existing site well to determine groundwater contaminant trends and evaluate the impact of seasonal variations on contaminant concentrations. DEC noted the presence of an active sub-slab depressurization system to control vapor intrusion risk may pose a challenge for closing the site in the future. NORTECH will provide a response to DEC's 2021 report comments and submit a work plan proposing additional groundwater monitoring events at the site to evaluate groundwater trends. Rebekah Reams
7/16/2024 Workplan Requested DEC sent correspondence requesting a response to the 2021 comments on the Vapor Extraction System Installation and Operation Report and the January 2019 Groundwater Monitoring Report as well as the submittal of a groundwater monitoring work plan to evaluate groundwater trends at the site. Rebekah Reams
11/21/2024 Workplan Requested DEC reviewed the January 2020 and March 2023 Groundwater Monitoring Report dated August 30, 2024 which addresses DEC’s comments to the January 2019 Groundwater Monitoring Report, August 16, 2021 and presents data from groundwater monitoring completed in 2023. DEC concurred with the recommendation to develop a long-term groundwater monitoring plan to evaluate contaminant concentrations at the site and requested a work plan be submitted by December 20, 2024. Rebekah Reams
11/21/2024 Update or Other Action DEC requested a response to the outstanding comments on the Vapor Extraction System Installation and Operation Report provided on November 30, 2021. Rebekah Reams

Contaminant Information

Name Level Description Media Comments

Control Type

Type Details

Requirements

Description Details
Hazard ID Site Name File Number
24573 Construction Machinery Inc. former CJM Construction 102.26.130

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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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