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Site Report: ADOTPF Haines Maintenance Station

Site Name: ADOTPF Haines Maintenance Station
Address: Haines, Haines, AK 99827
File Number: 1508.26.012
Hazard ID: 25136
Status: Cleanup Complete
Staff: No Longer Assigned, 9074655229 dec.icunit@alaska.gov
Latitude: 59.236376
Longitude: -135.456959
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

Two 2,000-gallon regulated underground storage tanks (USTs) and associated piping were closed by removal in 1999. Petroleum contaminated soil was found in surface soil extending to four feet below ground surface (bgs) where groundwater was encountered at its seasonal high. Soil contamination extended to six feet bgs. Fifty cubic yards of oily sand and gravel were containerized and shipped off-site for remediation. Laboratory data for the containerized soil had concentrations of diesel range organics (DRO) and gasoline range organics (GRO). Three of four pit confirmation samples were below DRO and GRO Method Two Migration to Groundwater cleanup levels; the fourth sample in the south corner of the pit detected DRO and GRO. The pit was lined before backfilling and it was estimated that an additional 20 cubic yards of contaminated material remained on-site. In 2007, further cleanup work was performed which closed a nearby heating oil UST and installed groundwater monitoring wells to assess petroleum contamination from the previously removed regulated USTs. Although visual and olfactory evidence of diesel fuel was observed in soil borings, the analytical data on water samples collected from the wells detected petroleum concentrations below 18 AAC 75 Table C cleanup criteria.

Action Information

Action Date Action Description DEC Staff
10/25/1999 Leaking Underground Storage Tank Release Confirmed - Petroleum LUST Site created in CSP for source area ID 77628 Petroleum release reported by Smith Bayliss LeResche to the Underground Storage Tank Program this date. Former Staff
10/25/1999 Site Added to Database Former Staff
12/20/1999 Leaking Underground Storage Tank Cleanup Initiated - Petroleum Along with closure by removal of 2 regulated USTs fifty cubic yards of contaminated material was transported to United Soil Recycling in Juneau for thermal remediation. Bruce Wanstall
10/2/2001 Update or Other Action Changed Project Manager from Colin Basye to Anne Marie Palmieri Cynthia Pring-Ham
6/4/2004 Update or Other Action Project manager change from AMP to Wanstall Bruce Wanstall
8/17/2004 Update or Other Action File review followup to site inspection on June 4th; rerank the site and post action records on the database. 34 year old 2000gallon heating oil UST currently in use is a potential problem. Bruce Wanstall
1/6/2005 Update or Other Action Phone contact with the Haines Maintenance Station to track the status of the heating oil tank that is listed as still in operation. Staff stated that the UST is currently abandoned; he will contact a former employee who retired last fall to find out if the tank was drained or closed properly. Bruce Wanstall
8/15/2006 Update or Other Action Submit request for proposal draft to close an abandoned heating oil tank and assess historical soil and groundwater contamination. Bruce Wanstall
2/13/2007 Exposure Tracking Model Ranking Environmental Tracking Module baseline ranking Bruce Wanstall
2/13/2007 Update or Other Action Final request for proposal for abandoned heating oil tank closure and historical UST related soil and groundwater contamination is accepted and submitted for funding. Bruce Wanstall
2/22/2007 Update or Other Action Notice to Proceed for workplan development issued to Hoefler Consulting for the UST closure and provide property-wide site assessment. Bruce Wanstall
4/13/2007 Release Investigation Workplan for groundwater assessement and heating oil USTclosure is approved. Bruce Wanstall
7/6/2007 Underground Storage Tank Site Characterization or Assessment Interim report for work that was able to be completed during high water table conditions is approved. RFP to complete unfinished work at the site completed and sent to bid. Bruce Wanstall
8/4/2007 Update or Other Action NTP issued to complete the site assessment started in May 2007. Bruce Wanstall
10/3/2007 Document, Report, or Work plan Review - other ADEC reviewed and approved Groundwater Assessment Report for Haines ADOT&PF Haines, Alaska by Hoefler Consulting Group. The site assessment project closed a heating oil tank and installed ground water monitoring wells to assess petroleum contamination from USTs removed and closed on the property. Although visual and olfactory evidence of diesel fuel was observed in soil borings, the analytical data on water samples collected from the wells detected petroleum concentrations below 18 AAC 75 Table C cleanup criteria. Bruce Wanstall
10/22/2008 Long Term Monitoring Established ADEC approved the UST Closure and Groundwater Assessment Report; a trend in low level contaminant concentrations will be established using periodic ground water monitoring. Bruce Wanstall
4/3/2009 Update or Other Action The site is long term monitoring for residual soil and groundwater contamination on the property. A sampling event of the monitoring wells is proposed for FY09 and will be completed when funding is available. Bruce Wanstall
5/7/2010 Update or Other Action FY2010 field work includes additional groundwater sampling to monitor declining hydrocarbon contamination to ensure that off-site migration pathways are protected. The objective of periodically monitoring the ground water for contamination is to establish a trend over time to determine if residual petroleum contamination is expanding, stable or in decline and therefore, possibly close the site. If the data indicate an expansion of contamination then additional assessment and/or cleanup action will be performed to ensure the site does not pose an unacceptable risk to human health or the environment. Bruce Wanstall
1/4/2011 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 77628 USTS/dispenser/piping. Bruce Wanstall
1/21/2011 Document, Report, or Work plan Review - other ADEC evaluation of the letter-report titled Groundwater Sampling, ADOT&PF Maintenance Facility, Haines, Alaska by Shannon & Wilson finds the data meet field and laboratory quality assurance criteria and is approved. Results of the August 2010 groundwater sampling event indicate that DRO and RRO concentrations greater than the cleanup criteria are present in Well MW-1. The Well MW-1 samples (Samples MW-1 and its duplicate MW-10) contained up to 21.8 milligrams per liter (mg/L) DRO and 1.11 mg/L RRO, greater than the cleanup levels of 1.5 mg/L and 1.11 mg/L, respectively. MW-2 was dry and MW-3 and MW-4 samples were non-detect for GRO, DRO, RRO and BTEX compounds. Bruce Wanstall
9/2/2011 Document, Report, or Work plan Review - other DEC evaluation of 2011 Groundwater Monitoring Report ADOT&PF Maintenance Facility Haines AK by Oasis finds the site activity met the objectives of the project and an assessment of the sample collection demonstrated that a sufficient number of representative samples were collected and the precision, accuracy and completeness of the resulting analytical data is sufficient to be used to support the decision making process. In accordance with Title 18 Alaska Administrative Code (AAC) 75.360, qualified person(s) used data collection and field screening methods consistent with DEC methodology in the approved site assessment work plan. The DEC laboratory report checklist submitted as an attachment is acceptable and the data meet field and laboratory report quality assurance criteria in Contaminated Sites Program guidance documents, therefore the Report is approved in accordance with 18 AAC 75. Bruce Wanstall
3/23/2012 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 77628 USTS/dispenser/piping. Most of the analytical results in the 2011 well sampling event were below laboratory reporting limits. DRO was detected in MW-1 at a level slightly above the DEC cleanup level. However the DRO result with the silica gel cleanup was below the groundwater cleanup level. This indicates that biogenic interference is present and contaminant levels for DRO and RRO at both the wells are below DEC Table C cleanup levels. Bruce Wanstall
8/31/2012 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 77628 USTS/dispenser/piping. Bruce Wanstall
9/15/2012 Cleanup Complete Determination Issued The cleanup actions to date have served to excavate and adequately remove contaminated soil from the site. Based on the information available, DEC has determined there is no longer a risk to human health or the environment and no further assessment or cleanup action is required. Bruce Wanstall
9/15/2012 Long Term Monitoring Complete Administrative action on 5/1/2013. Kristin Thompson
1/22/2014 Document, Report, or Work plan Review - other DEC approved by email to the DOT project manager a Shannon & Wilson sampling work plan proposal to use MI Methodology (requested by DEC) to characterize three soil stockpiles located on-site for DRO & RRO petroleum contamination. Workers suspected the soil was contaminated by observation during replacement of a hydraulic lift in the vehicle maintenance shop. The sampling objective is to characterize the soil for remedial options. Bruce Wanstall

Contaminant Information

Name Level Description Media Comments
DRO 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 < Table C Groundwater
GRO < Table C Groundwater

Control Type

Type Details
No ICs Required

Requirements

Description Details
Advance approval required to transport soil or groundwater off-site.
Hazard ID Site Name File Number
26276 ADOT&PF Haines Maintenance Station Vehicle Repair Shop 1508.38.025

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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