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Site Report: Alaska Airlines - Juneau Cargo Facility


Site Name: Alaska Airlines - Juneau Cargo Facility
Address: 1915 Alex Holden Way Juneau International Airport, source area ID # 77618, Juneau, AK 99801
File Number: 1513.26.054
Hazard ID: 22996
Status: Active
Staff: Amy Rodman, 9074655368 amy.rodman@alaska.gov
Latitude: 58.359031
Longitude: -134.587689
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

Groundwater monitoring well and soil boring samples indicate residual contamination consists of primarily gasoline and some diesel in soils at 8-12 feet below ground surface in the proximity of the former underground storage tanks (USTs).

Action Information

Action Date Action Description DEC Staff
11/20/1997 Update or Other Action Cost Recovery Notice letter to Ak Air (owner ID# 35) from Storage Tank Program concerning facility ID#1570 effective 12/1/1997. Bruce Wanstall
9/1/1998 Leaking Underground Storage Tank Release Confirmed - Petroleum LUST Site created in CSP for source area ID 77618 USTs or associated piping are confirmed source of release of GRO, DRO, RRO and BTEX to soil and groundwater. Located adjacent to the former waste oil UST removed in 1993. Bruce Wanstall
9/1/1998 Site Added to Database * Not Assigned
9/15/1998 Leaking Underground Storage Tank Cleanup Initiated - Petroleum BTEX, GRO and DRO soil and groundwater contamination detected in excavation adjacent to previously removed 500gallon used oil UST. Dispensers, piping and 3 USTs removed and scrapped; 77 cubic yards contaminated soil removed with the tanks was stockpiled and later transported off-site for remediation. Bruce Wanstall
4/6/1999 Release Investigation Three soil borings advanced and 4 GW monitoring wells installed using hollow-stem auger drill rig. Wells completed to depths between 10 and 15feet bgs with varying screen depth. 2-inch ID shcedule 40 PVC casing with 0.020-inch slot screen. Bruce Wanstall
4/8/1999 Release Investigation Four soil vapor extraction wells, SVE-1 thru 4, were completed to 12 feet bgs. Two soil-gas monitoring points, MP-1 and 2, were completed with two screens within each location. MP-1 has a screen at 5.5feet bgs and 9feet bgs. MP-2 has a screen at 3feet bgs and 7feet bgs. Bruce Wanstall
7/31/2001 Underground Storage Tank Site Characterization or Assessment Supplemental Site Characterization Workplan approved for GRO, BTEX, and DRO soil and groundwater contamination. Bruce Wanstall
10/2/2001 Update or Other Action Changed Project Manager from Paul Horwath to Bill Janes Cynthia Pring-Ham
12/12/2001 Update or Other Action Changed Project Manager from Janes to Bruce Wanstall. Bill Janes
2/27/2002 Update or Other Action Verbal approval given to transport IDW soil and water, stored at site indoors in drums, to USR Juneau Facility. IDW water will be delivered to the Juneau Douglas Wastewater Treatment Plant when it thaws. Bruce Wanstall
5/30/2002 Report or Workplan Review - Other Review 2001 SRI Report for comment on pending 2002 SRI workplan for the Ak Aircargo blg USTs. Bruce Wanstall
7/9/2002 Release Investigation Supplemental RI workplan approval sent by letter and by phone message to RP consultant. Bruce Wanstall
9/16/2002 Update or Other Action Approval letter issued for 2002-03 Quarterly Groundwater Sampling Workplan submitted 9/13/02. Continuation of the supplemental release investigation, the sampling plan is designed to delineate the dissolved phase of the GRO/BTEX contaminant plume and changes over the period of the monitoring events. Bruce Wanstall
9/20/2002 Update or Other Action Stormwater Pollution Prevention Plan for Juneau International Airport dated 11/01 from maintenance dept. found to have accurate stormdrain locations in areas of the residual plume at the site. Met with E&E staff on-site for well sampling, measuring water levels, and recording drain locations with GPS. Copies of Plan made and forwarded to RP/consultant. Bruce Wanstall
11/4/2002 Update or Other Action Teleconference discussion of possible tidal influence affecting potable quality of GW. Saline indicators could support 350 determination for proposed ACLs for soil and GW. Bruce Wanstall
12/12/2002 Report or Workplan Review - Other Review of Airport Chevron file. Review of Sept Quarterly GW sampling Report; discussion with RP consultant about taking the lead to develop 18 AAC 350 and 10X rule ACLs. Forwarded link to lower Duck Creek groundwater study. Bruce Wanstall
12/18/2002 Report or Workplan Review - Other Draft letter for SRI and QGS reports. Review regs and areawide land use 350 determination for 10 times rule ACLs at Juneau Airport. Bruce Wanstall
3/3/2003 Update or Other Action January 2003 Quarterly Groundwater Sampling Report received. Water table elevated for this event; benzene and GRO concentrations lower than previous quarter; concentrations highest near former USTsite. Bruce Wanstall
5/27/2003 Update or Other Action April 2003 Quarterly Groundwater Sampling Report received. All quarterly monitoirng event groundwater elevation data indicate groundwater ebbs and flows with levels of rainfall rather than tides. Petroleum concentrations in well samples are greatest near former UST site but may be increasing in downgradient well samples. Continued monitoring for contaminant migration is recommended. Bruce Wanstall
8/15/2003 Report or Workplan Review - Other Review of Corrective Action Plan by E&E received 8/14/03. Remedial technologies and alternative solutions evaluated for site specific plan are consistent with earlier discussion with affiliated parties. Bruce Wanstall
8/21/2003 Leaking Underground Storage Tank Corrective Action Underway Review of Corrective Action Plan remedial alternatives. Department approval for Pilot Test sent by email. Bruce Wanstall
2/9/2004 Update or Other Action Reached Dorothy Saunders at EPA inquiring into permit needs for subsurface UIC (Class V). She will contact the DEC if permit is requested. Bruce Wanstall
2/17/2004 Leaking Underground Storage Tank Corrective Action Underway Revised Corrective Action Plan approved. Implementation scheduled for Spring 2004. Approval letter sent with recommendations to analyze GW for bioremedial tracking parameters. Bruce Wanstall
4/25/2004 Leaking Underground Storage Tank Corrective Action Underway Ozone sparging unit is installed in the subsurface at the site and operating. Bruce Wanstall
5/18/2004 Long Term Monitoring Established Groundwater Monitoring Plan approved. Bruce Wanstall
5/19/2004 Leaking Underground Storage Tank Corrective Action Underway Approval to transport IDW petroleum contaminated soil off-site for remediation sent by fax and mail. Bruce Wanstall
7/26/2004 Update or Other Action Results of the June groundwater monitoring event were received for review. Concentrations of dissolved GRO in groundwater exceed cleanup level in 3 wells; concentrations of benzene exceed cleanup level in 5 wells; elevated dissoved oxygen compared with previous sampling events is attributed to ozone sparging unit remedial operation. Bruce Wanstall
8/16/2004 Update or Other Action Cost recovery memo sent to DOL approving current site log package. Bruce Wanstall
9/30/2004 Update or Other Action Cost recovery check for $946.44 received from Alaska Airlines to cover ADEC FY04 expense for cleanup project oversight staff. Bruce Wanstall
4/11/2005 Update or Other Action Project management FY 05 cost recovery check for $302.15 received from Alaska Airlines 3/15/05. Bruce Wanstall
4/10/2006 Update or Other Action Review monitoring well data for the June and December 2005 sampling events; change to Spring/ Fall sampling schedule is requested. Bruce Wanstall
7/5/2006 Report or Workplan Review - Other Request semi-annual sampling event schedule from URS; review 2005 sampling data Report. Bruce Wanstall
2/9/2007 Exposure Tracking Model Ranking Baseline ranking for the former UST sources has been completed and locked in. Bruce Wanstall
3/15/2007 Update or Other Action Review the 2006 semi-annual groundwater monitoring report and requested change to annual sampling. ADEC agreement to change from semi-annual to annual sampling during the summer seasonal period was sent by letter to Alaska Airlines; copied to consultant URS. Bruce Wanstall
5/1/2007 Update or Other Action $399.82 Check received for project management costs from Alaska Airlines. Bruce Wanstall
5/7/2008 Update or Other Action ADEC requested a 2007 GMR. Bruce Wanstall
5/14/2008 Update or Other Action ADEC reviewed and approved data from the 2007 Groundwater Monitoring Report by URS. As expected, the effectiveness of the active remediation is limited by low oxygen in the phreatic (saturated) subsurface zone. The goal of reversing the expansion of the gasoline plume in groundwater, however, continues to be met. Bruce Wanstall
4/16/2009 Report or Workplan Review - Other In accordance with quality assurance criteria ADEC has reviewed and approves the data in the 2008 Groundwater Monitoring Report by URS. Bruce Wanstall
11/19/2009 Report or Workplan Review - Other Alaska Air Cargo Facility at the JIA; project manager waiver of the requirement for laboratory report case narrative of data quality variances is necessary to accept the Test America URS 2009 GMR laboratory report for ADEC quality assurance criteria. While LIMS notation in the 2009 Report for sample dilution may be acceptable, an analysis-specific narrative signed by the laboratory project manager or analyst is normally required when surrogate recovery is outside limits. Bruce Wanstall
11/19/2009 Report or Workplan Review - Other 2009 Annual Ground Water Monitoring Report of the Alaska Air Cargo Facility at the JIA; a URS chemist provided a case narrative discussion of data quality variances in the Test America laboratory report. The discussion is adequate for ADEC quality assurance criteria. While LIMS notation in the 2009 Report for sample dilution may be acceptable, an analysis-specific narrative signed by the laboratory project manager or analyst is advisable when surrogate recoveries are outside limits. In this report, another surrogate was within range that more closely approximates the contaminants of concern for this site (gasoline). Bruce Wanstall
12/2/2009 Report or Workplan Review - Other DEC approves the URS 2009 Ground Water Monitoring Report data and recommendations to continue active treatment of a residual subsurface gasoline contaminated ground water and annual monitoring well sampling during the summer season. Annual sampling data dating back to 2005 when active treatment began indicate that GRO and BTEX concentrations in ground water have declined and the volume of the contaminant plume is reduced. Bruce Wanstall
1/7/2011 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 77618 underground storage tanks - fuel. As a result of active and ongoing remediation at the site BTEX compounds in ground water no longer exceed Table C cleanup levels; only GRO and DRO exceed Table C cleanup levels near maintenance shop on the south side of the building. Bruce Wanstall
12/14/2011 Report or Workplan Review - Other DEC approves the URS 2011 Groundwater Monitoring Report that documents annual monitoring of petroleum contaminated groundwater that resulted from leakage underground storage tank (UST) systems at the GSE/ Cargo Building. The groundwater sampling is an annual event in the Revised Corrective Action Plan approved by DEC in 2004 for active remediation at the site. In accordance with 18 AAC 78.090 and 18 AAC 78.230, qualified person(s) used data collection methods consistent with DEC methodology in the DEC-approved Corrective Action Plan for long term monitoring of groundwater. The data meet field and laboratory report quality assurance criteria in Contaminated Sites Program guidance documents and the UST Procedures Manual. The Report documents the results of current and historical results of field and laboratory investigation into petroleum release from regulated UST systems as required by 18 AAC 78.230 - 18 AAC 78.280 and 18 AAC 78.600 - 18 AAC 78.625. Bruce Wanstall
4/25/2012 Report or Workplan Review - Other DEC approves the corrective action Remediation System Installation Plan and the Long Term Monitoring Plan by URS for the Alaska Air GSE/Cargo Facility at the JIA. The air sparging/soil vapor extraction system will continue active remediation of groundwater contamination. The schedule for the AS-SVE system installation is after the annual monitoring event in May 2012. The proposed Long Term Monitoring Plan lists GRO and BTEX as COCs and the September 2009 18 AAC 75.341 Table C cleanup levels for those COCs for unrestricted land-use as cleanup goals. The LTM appropriately suggests that annual sampling be discontinued for wells MW-12 and MW-15 and sampling resume in wells MW-10 and MW-11 in order to achieve more upper-plume delineation. The LTM appropriately suggests the use of a submersible sampling pump for well purging and sample collection and annual reporting of the sampling results. Bruce Wanstall
10/29/2013 Update or Other Action DEC sent a request by email to Alaska Airlines to provide current information regarding URS installing the new remediation system at the Juneau Airport site and information regarding the outcome of annual sampling of monitor wells in accordance with approved revisions to the long term plan. Bruce Wanstall
10/29/2013 Update or Other Action DEC sent a request by email to Alaska Airlines to provide current information regarding URS installing the new remediation system at the Juneau Airport site and information regarding the outcome of annual sampling of monitor wells in accordance with approved revisions to the long term plan. Bruce Wanstall
11/8/2013 Update or Other Action URS installed all of the treatment wells and wired the remediation system in fall 2012 but installation of the lateral lines between the treatment system and the treatment wells is held up until fall 2013 at best. Regardless of the outcome of the remedial system installation, URS plans to collect samples from all the wells to update and maintain the long term monitoring Plan. Bruce Wanstall
3/6/2014 Update or Other Action DEC requested that URS provide an update on the remedial treatment system installation and well sampling. Bruce Wanstall
4/2/2014 Update or Other Action DEC requested URS provide DEC with an update on progress completing the sampling report for 2013 groundwater monitoring and the status for getting the treatment system up and running again. Bruce Wanstall
4/4/2014 Report or Workplan Review - Other DEC evaluated and by email approved a URS plan to complete installation the groundwater treatment system in the next few months and then sample all wells on-site and submit a report on overall site conditions. Bruce Wanstall
5/20/2014 Update or Other Action URS provided DEC, CBJ and operator Delta Western with an update on completing installation of the groundwater remediation system at the Alaska Air Cargo Building. After installation of the new remedial system, URS plans to collect samples from all the wells to update and maintain the Long Term Monitoring Plan. The most recent well monitoring was in summer 2011 by URS. Bruce Wanstall
7/21/2014 Update or Other Action URS submitted to DEC electronic and hard copy of a 2014 groundwater sampling report that will serve as a baseline for the AS/SVE remediation system being installed at the Juneau Airport facility site. A system installation report will be submitted after the system is fully operational. Bruce Wanstall
9/15/2014 Report or Workplan Review - Other DEC evaluated and approved, by letter sent by electronic and regular mail, Groundwater Monitoring Report, Alaska GSE/Cargo Facility, Juneau International Airport (Report), dated July, 2014. URS Corporation (URS) completed the Report documenting groundwater monitoring performed in accordance with the Revised Corrective Action Plan for the site, dated January 8, 2004, and the Groundwater Monitoring Plan (GMP), dated May 18, 2004. The objective of the groundwater monitoring program is to generate data for trend analysis of the groundwater contaminant plume in excess of cleanup levels and to assess effectiveness of active remediation at the site. Since 2005, petroleum concentrations in the contaminant plume stopped increasing and have declined as a result of active remediation at the UST release source area. The rate of decline has been less than was anticipated, perhaps due to anoxic conditions (low dissolved oxygen) in the contaminant plume. The Report recommends collecting samples in spring 2015 from wells MW-1, -2, -3, -4, -8, -9, -10, and -14 for COCs GRO and BTEX compounds chemical analyses to assess effectiveness of the newly installed remediation system. The Report also recommends continuing the GMP at the current annual interval until cleanup levels are met. Bruce Wanstall
1/9/2015 Report or Workplan Review - Other DEC approved by letter the 2014 Air Sparge/Soil Vapor Extraction System Installation Report by URS regarding remedial treatment of groundwater contamination at the AK Air Juneau Cargo Building LUST facility. URS installed two soil vapor extraction well points, and three air sparge well points using direct-push drilling methods at locations based on the distribution of soil and groundwater contaminants previously identified during historical groundwater monitoring events. Operation of the current AS/SVE treatment system should effectively mitigate groundwater contamination by treating the residual soil contamination in the source. Bruce Wanstall
10/8/2015 Update or Other Action DEC received by regular mail a hard copy of Groundwater Monitoring Report Alaska Airlines GSE/Cargo Facility Juneau International Airport Juneau Alaska prepared by AECOM Anchorage in September 2015 as AECOM Project No. 60437490. The groundwater sampling event is scheduled in the corrective action plan and results will evaluate effectiveness of a new air sparge/soil vapor extraction (AS/SVE) system installed in 2014 for Alaska Airlines by URS as Project No. 26219627. Bruce Wanstall
6/1/2016 Report or Workplan Review - Other DEC approved by letter and email to Alaska Airlines the sample monitoring report for the cargo facility at the Juneau International Airport submitted by AECOM Inc. Bruce Wanstall
8/18/2016 Report or Workplan Review - Other DEC reviewed the Alaska Airlines - Juneau Cargo Building LUST annual site sampling report by AECOM. An air sparge and soil vapor extraction system was installed at the Site in 2014. Report approval letter was sent to Alaska Airlines by regular and electronic mail recommending continued annual monitoring. Bruce Wanstall

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