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Site Report: Holiday Station Store #601; Formerly WES #5001

Site Name: Holiday Station Store #601; Formerly WES #5001
Address: 1405 S. Bragaw St.; , Anchorage, AK 99508
File Number: 2100.26.017
Hazard ID: 23846
Status: Cleanup Complete - Institutional Controls
Staff: IC Unit, 9074655229 dec.icunit@alaska.gov
Latitude: 61.208481
Longitude: -149.807806
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

The station was purchased by Holiday Companies in 2004. Previously, the station was purchased by Mapco Express in 1987. Formerly Toppers #1. An on-site groundwater sample, HCW2, taken on 5/22/90 had 0.21 ppm benzene. A shallow soil sample from beneath the SW service pump, B9S1, had 4836.9 ppm BTEX. Soil contamination exists around the former UST array and pump islands, as well as the new UST array. Groundwater contamination has been documented in offsite. The groundwater is about 9 feet below the surface and moves towards the southwest. In 2020, a new release was discovered when dispensers were upgraded. The new release is now listed as Hazard ID: 27708.

Action Information

Action Date Action Description DEC Staff
10/30/1987 Release Investigation SI; Hart Crowser performed a site assessment which included borings and one monitoring well. Groundwater and subsurface soil contamination encountered. ADEC did not receive a record of the monitoring well from Mapco until 3/29/90. Former Staff
9/4/1989 Document, Report, or Work plan Review - other The current system operation schedule for this site is continuous operation of SVE/AIS. Lynne Bush
12/22/1989 Underground Storage Tank Site Characterization or Assessment PA; Hart Crowser water well survey. Former Staff
2/9/1990 Site Added to Database Former Staff
2/9/1990 Leaking Underground Storage Tank Release Confirmed - Petroleum LUST Site created in CSP for source area ID 77668 ADD; Gasoline contaminant. Former Staff
2/10/1990 Leaking Underground Storage Tank Cleanup Initiated - Petroleum LCAU; :LCAU Date changed DB conversion Former Staff
3/28/1990 Leaking Underground Storage Tank Corrective Action Underway RAPR; Hart Crowser submitted; field work in regards to determining vertical and lateral extent of soil and groundwater contamination. Former Staff
4/29/1990 Site Visit FI; Statewide Petroleum Services tested lines and USTs; all tested tight. Grizzly Alaska Sales & Service reviewed tests for Mapco. Former Staff
5/10/1990 Release Investigation SI; Shannon & Wilson site investigation based on Hart Crowser's 4/90 work plan; on-site soil and groundwater contamination to the west and sw of UST array. During field work drill rig auger struck UST vent pipe; no spillage; repaired by Statewide Petroleum. Former Staff
7/2/1990 Leaking Underground Storage Tank Corrective Action Underway RAPR; Shannon & Wilson submits plan to place two monitoring wells off site to assess migration of groundwater contamination. Former Staff
7/5/1990 Release Investigation SI; Shannon & Wilson report; BTEX not detected in water samples taken from off-site monitoring wells. TPH ranged from 1480 to 2930 ppm, BTEX up to 4836 ppm in soil. Former Staff
7/26/1990 Leaking Underground Storage Tank Corrective Action Underway RAPR; Shannon & Wilson soil and groundwater remediation plan; involves vapor extraction and possible groundwater removal/treatment. Former Staff
9/19/1990 Leaking Underground Storage Tank Corrective Action Underway RAPR; Shannon & Wilson submits a revised soil and groundwater remediation plan; more detailed than 7/26 plan; incorporates ADEC comments. Former Staff
9/26/1990 Long Term Monitoring Established MS; Monthly measurement of groundwater table; used to determine groundwater direction; results included in the the quarterly sampling report. Former Staff
9/26/1990 Long Term Monitoring Established MS; Quarterly groundwater sampling of the project monitoring wells; quarterly report. Former Staff
11/6/1990 Leaking Underground Storage Tank Corrective Action Underway RAPR; Shannon & Wilson presents a more detailed, revised soil and groundwater remediation plan to be implemented in the 1991 construction season. Former Staff
11/26/1990 Leaking Underground Storage Tank Corrective Action Underway CAPR; The department approved a soil vapor extraction and ground water pump and treat plan. Former Staff
6/1/1991 Long Term Monitoring Established MS; Shannon & Wilson sent in June '91 groundwater monitoring results. Flow of groundwater appears to be in a southwesterly direction. Samples from borings B7MW & B8MW continue to show non detectable BTEX . Upper limit for total BTEX was in sample 1-T-7MWW5 .0821 ppm (.110 ppm benzene, .206 toluene, .017 ppm ethylbenzene, .488 ppm xylenes). Former Staff
12/2/1991 Update or Other Action CORR; The department sent Mapco a letter expressing concern over the failure to meet the schedule in the corrective action plan. Former Staff
12/30/1991 Update or Other Action CORR; Mapco submitted a startup report for the soil vapro extraction system, ground water treatment not initiated yet. Former Staff
1/16/1992 Update or Other Action RAU; Mapco submitted a startup report for the groundwater treatment system along with a quarterly monitoring report. Former Staff
3/10/1992 Update or Other Action CAPR; Mapco submitted a plan to connect a stockpile of soil to the vapor extraction system at the site. The stockpile does not appear to be properly contained, however, it is present and frozen. therefore, conditional approval was granted to connect the stockpile to the vapor extraction system but as soon as the soil thaws or by May 15, whichever is sooner, Mapco is to contain, treat or dispose of the soil with prior approval from the dept. (18 AAC 78.230(a)(4). Former Staff
6/1/1992 Update or Other Action CAPR; Letter sent to Shannon and Wilson regarding relocating soils from MAPCO #1 to MAPCO #2 for VES treatment. DEC requested some soil cell design criteria which were subsequently met by MAPCO. Soils were successfully treated and taken off site later in the summer to be used as upland fill for a new MAPCO. Former Staff
1/5/1993 Leaking Underground Storage Tank Corrective Action Underway LCAR; Groundwater pump & treat system running from 1/7/92 to 12/1/92. System shut down for exceeding AWWU effluent levels for BTEX (.1 ppm). Will change packing materials in air stripper. Former Staff
8/30/1994 Leaking Underground Storage Tank Corrective Action Underway LCAR; Former Staff
10/20/1994 Leaking Underground Storage Tank Corrective Action Underway LCAR; Performed a Corrective Action Report review. Former Staff
11/21/1994 Leaking Underground Storage Tank Corrective Action Underway LCAR; Review monitoring well reports. Former Staff
7/15/1995 Leaking Underground Storage Tank Corrective Action Underway LCAR; Reviewed quarterly monitor well report required by COBC. Former Staff
7/25/1995 Update or Other Action CAPR; Met with RP to discuss status of site. Former Staff
9/15/1995 Update or Other Action CAPR; Reviewed files. Former Staff
11/20/1997 Update or Other Action ADEC sends Notification of Intent to Cost Recover Letter to Current Owner: MAPCO EXPRESS INC Former Staff
5/2/2001 Update or Other Action Former Staff
9/17/2001 Update or Other Action Changed ADEC Project Manager from Bush to Wiegers Cynthia Pring-Ham
11/21/2002 Update or Other Action Fall monitoring report submitted. Hydrocarbon recovery from the remediation system was estimated to be 0.25 to 1.6 pounds/day. One well contained detectable hydrocarbons. MW-15, located downgradient of the current USTs contained benzene at 14 ppb. MW-12, which normally contains elevated hydrocarbons in the fall, remained non-detect. Janice Wiegers
3/11/2003 Update or Other Action Per J.Wiegers, change file number from L30.01 to 2100.26.017 Wendy Uzzell
3/19/2003 Update or Other Action R&E consulting called about their plan to conduct additional characterization on the adjacent Ride-n-Shine property. They will be installing some additional soil borings and plan to sample below the water table, as the last results indicated contamination was present at a significant depth below the water table. The reason for this is unclear but may be related to smear zone affects. Janice Wiegers
11/14/2003 Document, Report, or Work plan Review - other Remediation and groundwater monitoring report submitted. May and August groundwater events were coordinated with Ride-n-Shine. GRO and BTEX remain in the northern portion of the site. Benzene exceeded cleanup level in MW-12 and MW-13 (5-8 ppb) and MW-15 (32 ppb). VOCs were also sampled. PCE was also observed in MW-13 below cleanup levels (2.8 ppb). Janice Wiegers
5/1/2004 Update or Other Action Site transferred from Wiegers to Bush. Lynne Bush
5/19/2004 Document, Report, or Work plan Review - other RSE and Ride'n'Shine owner Gerik submitted a NFRAP request to Todd Blessing, PM for RnS. This request is based on review by RSE and Dave Brailey of OilRisk, who both feel that the contamination on Gerik's property is from 5001. They request additional investigation and remediation by Holiday to address the contamination on Gerik's land. Lynne Bush
6/17/2004 Update or Other Action Reviewed file to approve cost recovery invoice. Lynne Bush
9/7/2004 Update or Other Action On 07 July 2004, Bush met with Holiday representative Bruce Anthony; Williams Express representative Terrie Blackburn; and Shannon & Wilson representatives Matt Hemry, Ben Heaver, and Tim Terry. The topic of discussions was plans for future activities at all former Williams Express Stations. Lynne Bush
9/8/2004 Update or Other Action Holiday will be assuming responsibility for investigative and remediation activities at all former Williams Express Stores, but legal responsibility is divided by store. Holiday has renumbered their stores as: 5001=601; 5002=602; 5005=605; 5005=605; 5006=606; 5007=607; 5008=608; 5010=610; 5014=614; 5016=616; 5018=618; 5024=624; 5025=625; 5030=630; 5031=631; 5050=650. While Holiday will oversee the work at the former Williams’ stations, these sites remain the responsibility of Williams. The numbers of these sites remain the same: 5003; 5004; 5009; 5012; 5015; 5017; 5021; and 5034. Lynne Bush
9/8/2004 Release Investigation A decision was made in 2004 by Williams and Holiday to sample all sites for lead scavengers. The first event occurred in Spring 2004. Lynne Bush
9/8/2004 Release Investigation The most recent action item(s) for this site is further investigation regarding the neighboring Ride 'n' Shine station. Lynne Bush
9/9/2004 Long Term Monitoring Established The Soil Vapor Extraction system operation schedule for this site is continuous and the sampling frequency is quarterly. Lynne Bush
9/9/2004 Long Term Monitoring Established The Air Injection System operation schedule for this site is continuous and the sampling frequency is quarterly. Lynne Bush
9/10/2004 Release Investigation Groundwater pump and treat is not necessary at this site, as determined by gradient and contamination concentrations. Lynne Bush
9/13/2004 Release Investigation As of April 2004, groundwater flow direction is SSW. Lynne Bush
9/13/2004 Release Investigation Groundwater sampling frequency: March and September each year. Lynne Bush
9/13/2004 Leaking Underground Storage Tank Corrective Action Underway Free Product is not present at this site. Lynne Bush
9/27/2004 Update or Other Action Approved delay for bi-annual reporting to include more recent SVE monitoring data. Lynne Bush
10/12/2004 Update or Other Action The iso-contours for contamination at this station, as calculated by Holiday, show co-mingled plumes with the upgradient Ride 'n' Shine. The gradient is calculated as 3 feet per day to the southwest. Lynne Bush
11/1/2004 Document, Report, or Work plan Review - other Future plans for this site include continued monitoring,and operation of the remediation system. Lynne Bush
11/1/2004 Document, Report, or Work plan Review - other Holiday is reviewing the No Further Remedial Action Planned status of the Ride'n'Shine located next door to this station. They assert that a co-mingled plume exists with contamination from the Ride'n'Shine migrating onto their site. A more in-depth review will be performed. Lynne Bush
1/11/2005 Update or Other Action Received semi-annual report. Lynne Bush
1/27/2006 Update or Other Action Awaiting Spring 2006 annual report to determine if long-term decreasing concentration trends will continue. Lynne Bush
5/9/2006 Update or Other Action Project management transferred from Bush to O'Connell. Aggie Blandford
5/15/2006 Document, Report, or Work plan Review - other Received April to December 2005 monitoring report. Rebound test conducted Sept.-Dec. 2005. Benzene detected in MW15 in Sept and in MW14 and MW15 in Dec., however none were above Table C. No analytes detected above Table C in 2005. Bill O'Connell
3/16/2007 Exposure Tracking Model Ranking Former Staff
6/8/2007 Document, Report, or Work plan Review - other Received 2006 groundwater monitoring report. QA checksheet completed. Rebound test in progress, VES system shut down. 2006 groundwater samples all ND or below Table C cleanup levels. Bill O'Connell
10/30/2007 Update or Other Action Petition for Conditional Closure received. Keather McLoone
11/26/2007 Institutional Control Record Established ADEC has determined that the cleanup actions employed at HSS 601 were effective in removing a majority of the contaminant source material and a conditional closure is appropriate for the site. Based on the information provided to date, it has been determined that the contaminant concentrations remaining on site do not pose an unacceptable risk to human health or the environment and no further remedial action is required. This determination is subject to the following conditions: 1. An institutional control will be recorded on the ADEC database that identifies the nature and extent of the contamination remaining on the site. In addition the attached “Notice of Environmental Cleanup and Residual Soil and Groundwater Contamination” shall be recorded on the property deed. These will serve as notification to future owners/operators of the property of the environmental status of the site and any conditions that apply to future management of contamination. A copy of the recorded notice shall be provided to ADEC within thirty (30) days of its recordation. 2. ADEC shall be notified prior to off site transport of soil in accordance with 18 AAC 78.274(b). 3. The aboveground components of the remediation system, the vapor extraction wells, and the air sparge wells shall be decommissioned in accordance with accepted practices and a work plan approved by ADEC. 4. Any monitoring wells that are not needed for future monitoring shall be decommissioned in accordance with an ADEC approved work plan. 5. Groundwater wells will not be installed on this property without prior approval from ADEC. Keather McLoone
11/26/2007 Institutional Control Record Established Notice of remaining contamination- Soil contaminated with benzene and GRO above the ADEC Tables B1 and B2 cleanup levels was found in the former tank excavations and during installation of monitoring and remediation wells. Keather McLoone
11/26/2007 Conditional Closure Approved Former Staff
4/29/2008 Update or Other Action Notice of Environmental Contamination received as recorded and signed by Holiday. Keather McLoone
9/19/2008 Update or Other Action Approved Work Plan for Well and Remediation Decommissioning which will consist of sealing subsurface system piping, decommissioning 22 wells, including 9 groundwater wells, 1 vapor extraction well and 12 air injection well and removing the remediation shed planned for October 2008. There should be no monitoring wells remaining as monitoring requirements have been met. Keather McLoone
3/23/2010 Update or Other Action As of email communication on today's date, decommissioning efforts are not yet completed. Two wells are yet to be decommissioned that are located offsite at residences which require additional access agreements (MW7 and MW8). Keather McLoone
6/9/2010 Document, Report, or Work plan Review - other Receipt of Monitoring Well and Remediation System Decommissioning report. Nine groundwater monitoring wells, 1 vapor extraction well, and 12 air injection wells were decommissioned. Letter sent on 11/1/10 commenting on the decommissioning report. Keather McLoone
12/1/2011 Update or Other Action The current project manager chose to retain management of this site with the Cleanup Complete Determination that has Institutional Controls. Kristin Thompson
3/6/2012 Update or Other Action Date of receipt of letter from S&W on behalf of Holiday requesting Removal from Compliance Order by Consent for this site. Keather McLoone
4/6/2012 Update or Other Action Date of letter sent to Holiday stating that there were no further requirements under the 1991 COBC other than maintenance of the conditions in the 12/5/07 ROD. Keather McLoone
6/6/2013 Long Term Monitoring Complete Administrative action added during a quality control check. Kristin Thompson
12/2/2015 Institutional Control Compliance Review IC compliance review conducted, staff name changed from Nuechterlein to IC Unit, long term monitoring was completed in 2012, periodic review has been set to every five years, the reminder system has been set to send an IC letter in 2017. Evonne Reese
3/23/2017 Institutional Control Compliance Review IC compliance review conducted. Closure/IC Details updated. IC reminder letter issued. Periodic review reduced to every three years due to the groundwater use restriction IC requirement. Reminder system set for next follow-up to occur in 2020. Kristin Thompson
4/4/2017 Institutional Control Periodic Reporting Holiday Alaska informed the ADEC by letter that there have been no activities at this site that would cause reporting under the institutional controls requirements. Kristin Thompson
11/23/2020 Offsite Soil or Groundwater Disposal Approved 20 yards of VOC and PAH contaminated soils approved to go to Alaska Soil Recycling for thermal remediation. Soil was generated during upgrades to dispensers and turbine sumps. Kara Kusche
1/19/2021 Update or Other Action The ADEC received a interim action report from Shannon & Wilson on January 19, 2021. The interim action report details contamination found during dispenser upgrades. Randy Guintu
4/21/2021 Site Characterization Report Approved The ADEC sent a interim action report approval letter on April 21, 2021. Randy Guintu
6/29/2021 Site Characterization Workplan Approved The ADEC approved The Holiday Alaska, Inc. Groundwater and Soil Sampling Work Plan prepared by Shannon & Wilson. Randy Guintu
11/4/2021 Offsite Soil or Groundwater Disposal Approved Three 55-gallon drums of contaminated soils approved to go to the US Ecology Anchorage facility, where it will be consolidated before being transported to the Columbia Ridge facility in Oregon. Contaminants of concern include: GRO, DRO, PAHs, and VOCs. An additional three 55-gallons of contaminated water approved to go to the US Ecology Anchorage facility. Contaminants of concern include GRO, DRO, PAHs, and VOCs. Flannery Ballard
12/28/2021 Update or Other Action The ADEC received via email a release investigations report from Shannon & Wilson on December 28, 2021.The ADEC will review the report and provide comments. Flannery Ballard

Contaminant Information

Name Level Description Media Comments
Benzene Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil
Benzene > Table C Groundwater
GRO Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil
GRO > Table C Groundwater

Control Type

Type Details
CS Database Notation And Letter To Landowner/RP
Notice of Environmental Contamination

Requirements

Description Details
Groundwater Use Restrictions Groundwater wells will not be installed on this property without prior approval from ADEC.
Advance approval required to transport soil or groundwater off-site. Standard condition.
Periodic Review ADEC will conduct a review of site conditions every three years.
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) Standard condition.
Hazard ID Site Name File Number
27708 Holiday Station Store #601 Dispensers 2100.26.634

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P.O. Box 111800
Juneau, AK 99811-1800
Phone: 907-465-5066
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