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Site Report: Crowley Mail Trail Facility

Site Name: Crowley Mail Trail Facility
Address: Corner Mail Tr. & Dale Rd; , Fairbanks, AK 99701
File Number: 100.26.058
Hazard ID: 24339
Status: Cleanup Complete - Institutional Controls
Staff: Shawn Tisdell, 9074512752 shawn.tisdell@alaska.gov
Latitude: 64.814700
Longitude: -147.883900
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

Site also known as Crowley Dale Rd Facility, Mail Trail Rd Site, and Crowley Marine Services. A 15,000-gallon diesel underground storage tank (UST) was removed from the site in October 1991 following an August 1991 focused environmental site investigation that was conducted to identify potential environmental concerns at the site. Free product was observed in the excavation and removed to the extent possible. Approximately 450 cubic yards of contaminated soil was removed in 1993 until the limits of the excavation were below cleanup levels. Site characterization since the initial discovery included advancing borings and monitoring wells in 1991, 1992, 2012 and 2017. Groundwater was sampled eight times between September 1991 and June 1994, once in May 2012, and three additional times between July 2017 and October 2018. Based on these results, the ADEC has determined that soil contamination at the site has been cleaned up to concentrations below the approved cleanup levels suitable for residential land use. Groundwater meets the applicable cleanup levels at the property boundary. The groundwater contaminant plume has been demonstrated to be shrinking and the contaminant concentrations are steady or decreasing. Therefore, ADEC has determined the residual soil contamination does not pose an unacceptable migration to groundwater concern. Groundwater at the site is not currently used as a source of drinking water, as the property is connected to the municipal water system. This site is at the same location as Hazard ID 26953, file no. 100.38.284, Everts Air Fuel Mail Trail Facility.

Action Information

Action Date Action Description DEC Staff
7/17/1992 Long Term Monitoring Established MS; Thomas: Report of GW samples. Elevated BTEX levels, one well with high EPH levels, GW elevations taken. MW-1 hot. Will be conducted add. analyses. Former Staff
8/8/1992 Release Investigation SA2; Former Staff
8/8/1992 Underground Storage Tank Site Characterization or Assessment SA1; Former Staff
8/14/1992 Underground Storage Tank Site Characterization or Assessment SA1R; Thomas reviewed 2 preliminary reports: (1) Environmental assessment, (1) tank removal report. Groundwater significantly impacted. LUST suspected. Former Staff
8/14/1992 Release Investigation RELR; Thomas reviewed, could not approve corrective action until numerous conditons were addressed. Former Staff
8/18/1992 Site Visit RECN; Thomas inspected layout of property to determine proximity of LUST site to adjacent USPS site. Evidence of newly removed LUST area- three monitor wells. Significant surface spillage of oil around property. Former Staff
8/19/1992 Site Visit RECN; Inspected excavation pit, stockpiled soil, proximity of home to other homes. Former Staff
8/29/1992 Leaking Underground Storage Tank Release Confirmed - Petroleum LUST Site created in CSP for source area ID 77699 ADD; Former Staff
8/29/1992 Site Added to Database Former Staff
9/1/1992 Release Investigation SA2; Thomas rec'd "Mail Trail Road GW Monitoring Report" by America North describing site activities 9/92-12/92. One off-site and three on-site MWs were installed and sampled. Seven soil borings advanced and sampled. MW-1 still hot near tank, upgradient wells show contamination, suggesting off-site sources. Recommends additional sampling. Former Staff
9/1/1992 Release Investigation SA2; ADEC received report "Mail Trail Rd. Groundwater Monitoring Report". RE: SA2. Thomas will review & comment. Info important in coordinating multi-party investigation w/other adjacent properties. In this report, off-site source(s) are suspected in addition to site's LUST. Former Staff
9/22/1992 Update or Other Action UPD; Hung reviewed. Former Staff
2/24/1993 Release Investigation RELR; Thomas reviewed and approved GW monitoring report as adequate. Contaminant type and location validate possibility of off-site source(s). Concurrs that coordinated effort between near-by site owner/operators next step in developing regional investigation strategy. Former Staff
2/25/1993 Update or Other Action CORR; Thomas request letter to Crowley for coordinated GW investigation effort between MarkAir, USPS, Crowley, and MAPCO. Outlined GW investigation parameters, and schedule. Requested response in 45 days, and meeting April 30, 1993. Former Staff
4/1/1993 Long Term Monitoring Established MS; Thomas: Copy of ground water results from Crowley site, sampled in April 1993. GW elevations show a predominant flow to the northwest. MW's 4,5,6,7,8 all had benzene above MCL, all other TEX compounds low. Report postulates that high BTEX/GRPH values may be attributed to off-site gasoline tank. (Crowley has a diesel-only tank). Former Staff
9/2/1993 Update or Other Action MEET; Thomas met with Crowley staff to discuss upcoming site actions. Crowley wished to address contam. soil and ground water as seperate issues. ADEC agreed so long as UST Guidance was followed for removal, sampling, and treatment. Crowley will probably treat on-site with some type of bioremediation. Crowley need not submit pre-construction plan, but should submit report at completion of project. Ground water will be monitored in concert with users group. Former Staff
10/25/1993 Leaking Underground Storage Tank Cleanup Initiated - Petroleum LCAU; Thomas reported: 450 yards of contaminated soil removed as retroactive soil removal from tank pull two years ago. Soils hauled to ESI and thermally remediated. Former Staff
1/14/1994 Update or Other Action RPL2; Peterson sent PRP-CS Database Noitification Letter to RP requesting update and more environmental information concerning the contaminated site. As of this "complete date" no response has been received. Former Staff
6/6/1994 Update or Other Action CORR; Wingerter sent letter informing RP of their financial liability under new ADEC cost recovery policy. State is authorized, under Section 9003(h) of the Resource Conservation and Recovery Act to take action on this LUST facility. Former Staff
10/25/1994 Update or Other Action CORR; Thomas reviewed Crowley's request for NFA but could not grant do to presence of ground water contamination (BTEX). Noted that source has been removed, extensive treatment has been performed, and long term monitoring in place. Ground water still needs attention. ADEC will advise once all sampling data submitted and reviewed. Former Staff
5/24/2005 Update or Other Action Reviewed report and draft correspondence requesting more groundwater monitoring. Update GIS, Topozone Pro NAD 83. Kim DeRuyter
4/6/2006 Update or Other Action Briefly reviewed the file and sent another correspondence requesting GW characterization and outlining Cost Recovery Authority. Kim DeRuyter
6/5/2006 Update or Other Action Called Stephen Wilson at Crowley. He said he would contact Everts and visit the site to verify the status of the monitor wells. Kim DeRuyter
11/3/2006 Update or Other Action Groundwater monitoring report received from Crowley. Only one monitoring well (MW-4) was still viable at the site. This well is located roughly 40 to 50 feet north of MW-1 which had the highest groundwater contaminant levels in the years after the tank was removed, and was sampled for GRO, DRO, RRO, VOC's (8260), EDB (504), and PAHs (8270). DRO, GRO, RRO, and some VOCs were detected, below the ADEC cleanup level. No PAH analytes were detected. Kim DeRuyter
3/7/2007 Exposure Tracking Model Ranking Former Staff
2/21/2008 Update or Other Action Sent letter to RP explaining that a closure decision can not be made due to lack of current gw data. Requested additional sampling if closure is desired. Neal Everson
3/11/2009 Update or Other Action Sent letter requesting current groundwater data / installation or replacement of well(s) in order to limit future responsibility if another petroleum release occurs in area. Neal Everson
2/9/2012 Update or Other Action Site transferred to Tamara Cardonna-Marek. Janice Wiegers
3/2/2012 Update or Other Action DEC sent letter to Crowley requesting groundwater characterization activities. Tamara Cardona-Marek
6/12/2012 Site Characterization Workplan Approved DEC received and reviewed the Work Plan for Groundwater Characterization submitted by Shannon and Wilson. Shannon and Wilson plans to install a maximum of 5 soil borings; 4 of these borings will be completed as monitoring wells to investigate the current status of the site. Samples will be collected for GRO, DRO, BTEX and PAH analysis. Tamara Cardona-Marek
10/29/2012 Offsite Soil or Groundwater Disposal Approved DEC approved transport of purgewater and soil cuttings resulting from monitoring well installation and groundwater sampling. Tamara Cardona-Marek
1/11/2013 Update or Other Action DEC receives groundwater characterization report from Shannon & Wilson, Inc. S&W installed 5 soil boring (B10 - , four of which were completed as monitoring wells (MW10 - MW13). DRO and several PAHs were detected in soil above cleanup levels in either B10 and/or B13. Groundwater contained DRO above cleanup levels in MW13 and benzene above cleanup levels in MW10 and MW11. S&W indicated contamination observed in B10 and MW13 is probably associated with the 15,000-gallon diesel UST, and is limited to this area. However, the benzene contamination in groundwater at MW10 and MW11 appears to be associated with a different source. Janice Wiegers
5/9/2016 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 77699 15,000 gallon UST. Shawn Tisdell
7/21/2016 Update or Other Action Sent letter to RP requesting additional characterization work is needed to further separate out potential source areas of contamination and demonstrate that remaining contamination from the site is stable and/or decreasing and not moving off the property. A meeting was requested to discuss specific investigative strategies. Shawn Tisdell
8/5/2016 Update or Other Action DEC received call from consultant indicating contact with Crowley Maritime Corp. is now Daniel Smith. A tentative meeting was set for September 8th, 2016. Shawn Tisdell
9/9/2016 Meeting or Teleconference Held Staff from Crowley, Shannon & Wilson and the DEC met to discuss additional site characterization for the former diesel UST release. This characterization will include a groundwater monitoring event for the onsite wells MW-10, MW-11, MW-12, and MW-13 and possibly the up gradient off-property Mark Air MW-12 well. The purpose of this proposed action is to assess if groundwater contaminant levels are stable and/or decreasing and to evaluate the contribution of groundwater contamination upgradient of the site area. Shawn Tisdell
11/18/2016 Document, Report, or Work plan Review - other DEC reviewed and approved a work plan from Crowley Maritime Corp.to conduct additional site characterization. This work will consist of advancing two borings to collect soil samples and install two additional groundwater monitoring wells. The wells will be sampled together with the other three monitoring wells on the property and possibly in coordination with a groundwater sampling event at the adjacent MarkAir contaminated site. A request to move the sampling date from early winter of 2016 to spring of 2017 was reviewed and approved. Shawn Tisdell
9/11/2017 Update or Other Action DEC staff approval disposal of two 55-gallon drums of petroleum contaminated purge/development water at NRC Alaska. Shawn Tisdell
12/5/2017 Document, Report, or Work plan Review - other A report titled " Additional Site Characterization, Mail Trail Road and Dale Street,Fairbanks, Alaska" was received Sept.2017 and reviewed. The report presents results from soil and groundwater samples taken at two locations where new monitoring wells were installed in addition to groundwater samples from existing wells. As concluded in the Report, soil and groundwater samples collected from the boring locations provide additional evidence that affected media has been delineated to the northwest and the southwest. DEC requested a more thorough discussion of results and inclusion of an updated conceptual site model. DEC requests a meeting this winter with affiliated parties to discuss cleanup decisions at the site. Shawn Tisdell
3/13/2018 Meeting or Teleconference Held Meeting held in Fairbanks DEC office with representatives from the responsible party and consultant to discuss site status and additional work proposed for the site. Shawn Tisdell
5/22/2018 Document, Report, or Work plan Review - other DEC received "Work Plan for Groundwater Monitoring." Two groundwater monitoring events are tentatively planned for June and October of 2018. Four groundwater samples will be collected during each event and analyzed for DRO, VOCs and PAHs. The work plan is being reviewed. Shawn Tisdell
6/28/2018 Document, Report, or Work plan Review - other Work Plan for Groundwater Monitoring was reviewed. DEC requested also sampling the monitoring well MW12 which is east of the source area and down-gradient of another contaminated site MarkAir - FIA Fairbanks Warehouse and to conduct a well survey for groundwater flow direction and gradient determination. Shawn Tisdell
7/3/2018 Update or Other Action Site name change from Crowley Maritime Corp. to Crowley Mail Trail Facility Shawn Tisdell
7/12/2018 Site Characterization Workplan Approved DEC staff reviewed and approved the revised work plan for groundwater monitoring. This work plan includes collecting five groundwater samples to be analyzed for DRO, VOCs and PAHs and will be conducted during summer and fall sampling events. Shawn Tisdell
9/11/2018 Update or Other Action Surface and sub-surface (at least 4.5 ft below ground surface) contamination has been observed during installation of a waterline from Mail Trail Rd to the warehouse near the center of the property. This contamination is approximately 100 ft south of the former diesel tank location. The degree and extent has not yet been determined. The trench was run near several monitoring wells installed for the purpose of delineating groundwater contamination at this site. Shawn Tisdell
12/14/2018 Offsite Soil or Groundwater Disposal Approved Two-55 gallon barrels of purge water from summer and fall groundwater sampling events approved by the DEC for disposal to NRC Alaska, Inc. Shawn Tisdell
12/28/2018 Document, Report, or Work plan Review - other Received 2018 Groundwater Monitoring report and is currently under review. The RP is recommending that the site be considered for closure. Shawn Tisdell
3/22/2019 Site Characterization Report Approved December 26, 2018 Groundwater Monitoring Report reviewed and approved Shawn Tisdell
9/17/2019 Site Characterization Workplan Approved This work plan proposes a methodology for the decommissioning of wells MW4, MW9, MW12, MW13 and MW15 at the site in accordance with the Alaska Department of Environmental Conservation (ADEC) September 2013 Monitoring Well Guidance. The responsibility of maintenance of the remaining wells MW8, MW10, MW11 and MW14 will be transferred to another responsible party to assist in characterization of another release. This work is planned for the end of September 2019. Shawn Tisdell
10/10/2019 Site Visit DEC staff visited the site to observe well decommissioning. Wells MW12, MW13 and MW15 were removed, however MW4 and MW9 could not be located and were not removed as originally planned. A decommissioning report will be prepared. Shawn Tisdell
6/23/2020 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 77699 15,000 gallon UST. Shawn Tisdell
10/14/2021 Cleanup Complete Determination Issued Petroleum contamination remains in sub-surface soil and groundwater; however, the impacted soil and groundwater from the release is confined to the vicinity of the former diesel UST as shown in the attached figure. Soil contamination at the site has been cleaned up to concentrations below the approved cleanup levels suitable for residential land use. Groundwater meets the applicable cleanup levels at the property boundary. The groundwater contaminant plume has been demonstrated to be shrinking and the contaminant concentrations are steady or decreasing. Therefore, ADEC has determined the residual soil contamination does not pose an unacceptable migration to groundwater concern. Groundwater at the site is not currently used as a source of drinking water, as the property is connected to the municipal water system. An Environmental Covenant has been approved by all affiliated parties and has been recorded in the land records maintained by the Alaska Department of Natural Resources and a copy is attached to this letter. Shawn Tisdell
10/14/2021 Institutional Control Record Established Institutional Controls established and entered into the database. Shawn Tisdell
10/14/2021 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 77699 15,000 gallon UST. Shawn Tisdell
11/6/2024 Institutional Control Compliance Review Institutional control review letter sent to landowner. Shawn Tisdell

Contaminant Information

Name Level Description Media Comments
1,2,4-Trimethylbenzene > Table C Groundwater
1-Methylnaphthalene Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil
2-Methylnaphthalene Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil
BTEX > Table C SoilGroundwater
DRO > Table C SoilGroundwater
Naphthalene > Table C SoilGroundwater

Control Type

Type Details
Environmental Covenant Two covenants were required for this site and are on file with the Alaska Department of Natural Resources Recorders Office.

Requirements

Description Details
Advance approval required to transport soil or groundwater off-site.
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)
Groundwater Use Restrictions No groundwater wells shall be installed in the area covered by the activity and use limitations without prior ADEC approval.
New Construction Restrictions If buildings are proposed for construction within the contaminated area, ADEC must be notified in advance and may require a vapor intrusion evaluation to determine if building occupants could be affected by vapors.
Subdivision Restriction ADEC must be notified in advance of the subdivision or replat of the Property associated with these activities and use limitations. This covenant must be included as part of future property transactions and attached to subsequent associated parcels, as determined applicable by ADEC
Groundwater Use Restrictions Groundwater throughout Alaska is protected for use as a water supply for drinking, culinary and food processing, agriculture including irrigation and stock watering, aquaculture, and industrial use. Contaminated site cleanup complete determinations are based on groundwater being considered a potential drinking water source. In the event that groundwater from this site is to be used for other purposes in the future, such as aquaculture, additional characterization and treatment may be required to ensure the water is suitable for its intended use.
Hazard ID Site Name File Number
26953 Everts Air Fuel Mail Trail Facility 100.38.284

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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
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