Action Date |
Action |
Description |
DEC Staff |
11/9/1986 |
Site Visit |
FI; Tightness test of tanks by Northern Lights Petroleum Equipment; station ownership by Unocal |
Former Staff |
11/15/1986 |
Release Investigation |
SI; RZA Consultant site evaluation for Unocal to characterize hydrocarbon contamination in soils and groundwater, depth and direction of groundwater. Depth to groundwater at about 12.5 feet; flows toward the NW. Petroleum hydrocarbons not detected in soils analyzed. Groundwater highly contaminated. Groundwater sample A1181-6, MW-3, had 1,570 ppb benzene. Source of contamination indicated under western pump installation or UST array. |
Former Staff |
5/27/1987 |
Long Term Monitoring Established |
MS; RZA consultant; private well 550 feet downgradient of site sampled on 4/1/87 had nondetectable BTEX. TPH at 0.08 ppm; Unocal funded. |
Former Staff |
10/1/1987 |
Leaking Underground Storage Tank Release Confirmed - Petroleum |
LUST Site created in CSP for source area ID 77669 ADD; |
Former Staff |
10/1/1987 |
Site Added to Database |
|
Former Staff |
10/2/1987 |
Leaking Underground Storage Tank Cleanup Initiated - Petroleum |
LCAU; :LCAU Date changed DB conversion |
Former Staff |
11/4/1987 |
Leaking Underground Storage Tank Corrective Action Underway |
RAPR; RZA consultant work plan for off-site soil and groundwater investigation; Unocal funded. |
Former Staff |
11/16/1987 |
Leaking Underground Storage Tank Corrective Action Underway |
RAPR; Re-installation of UST; Mapco (Toppers) undertakes work; written approval by ADEC 11/24/87; Mapco (Toppers) obtained station from Unocal in 11/87. |
Former Staff |
1/1/1988 |
Long Term Monitoring Established |
MS; Results of 1988 groundwater monitoring; July 1988 MW3 sample, 16.0 ppm benzene. Unocal funded. |
Former Staff |
9/13/1988 |
Underground Storage Tank Site Characterization or Assessment |
PA; RZA Consultant completes a 1/4 mile radius well survey to the north and west of site (downgradient of groundwater flow from site); (3) wells presently in use; Unocal funded. |
Former Staff |
10/10/1988 |
Long Term Monitoring Established |
MS; Groundwater samples from on-site monitoring wells show a dramatic increase in benzene; suggests a fresh leak (gasoline). |
Former Staff |
11/3/1988 |
Leaking Underground Storage Tank Corrective Action Underway |
RAPR; Hart Crowser work plan for monitoring excavation activity/contaminated soil removal. Mapco (Toppers) funded. |
Former Staff |
11/21/1988 |
Leaking Underground Storage Tank Emergency Response |
SC; Station shut down due to line leakage; Mapco voluntarily upgrades facilities to latest EPA Standards; Retains Statewide Petroleum Services and Hart Crowser; Date station re-opened was not clearly stated in the project file. The station is currently in operation. |
Former Staff |
11/21/1988 |
Update or Other Action |
REM; Hart Crowser monitored the removal of contaminated soils associated with the removal of a waste oil tank, replacement of Unocal USTs and piping. 1" of floating product below waste oil tank. 1000 gallons of product (emulsified?) was removed from excavation groundwater by Alaska Pollution Control. 1000 cubic yards of contaminated soil removed. Contamination remains under building. PCE (5.9 ppm) and TCE (0.5 ppm) detected at the waste oil tank excavation. Not clear what levels of halocarbons remained in place. |
Former Staff |
1/17/1989 |
Update or Other Action |
REM; 1300 tons of fuel contaminated soil from Mapco (Toppers) store #5008 processed at Anchorage Sand & Gravel. |
Former Staff |
3/1/1990 |
Leaking Underground Storage Tank Corrective Action Underway |
RAPR; Hart Crowser submits workplan for review. Mapco and Unocal are apparently sharing project costs. |
Former Staff |
6/15/1990 |
Long Term Monitoring Established |
MS; Hart Crowser sampling of private wells downgradient of the site. Samples analyzed for volatile organic chemicals by EPA Method 502.2. All samples were nondetectable for EPA 502.2 with the exception of sample #2608 which had 0.0033 ppm chloroform. |
Former Staff |
1/1/1991 |
Long Term Monitoring Established |
MS; Hart Crowser groundwater sampling report received. Water table elevations taken Jan.-May'91 flowing in a west-northwest direction with a gradient of .002 ft./ft. BTEX detected in all onsite wells MW-1 - MW-4 highest level 30.96 ppm. MW-5 - MW-7 were all below detection limit for BTEX & HVO. MW-1 & MW-4 contained .002 ppm & .010 ppm of 1,2-dichlorethane respectively. |
Former Staff |
1/22/1991 |
Release Investigation |
SI; Hart Crowser submits an additional site characterization report. Elevated levels of BTEX & TVPH evident in soils onsite & immediately adjacent to it, but not at significant levels in offsite monitoring wells. 1 source appears to be from underground tanks on site & 2nd source appears to be near MW-4 & BH-4 or upgradient thereof. |
Former Staff |
2/28/1991 |
Release Investigation |
SI; HartCrowser sent in report for additional site characterization. Only BH-3 soil boring had petroleum hydrocarbon concentrations in excess of DEC guidelines. S-2 soil sample had 197ppm TVPH & 25.6 ppm total BTEX. The data in report indicates 2 likely sources of petroleum hydrocarbons-location of the underground storage tanks & the area of the south pump islands. Halogenated volatile organics were detected in samples S-8, S-9, BH-4. |
Former Staff |
3/15/1991 |
Leaking Underground Storage Tank Corrective Action Underway |
RAPR; Hart Crowser sent in remedial action plan which will use vapor extraction first then to treat groundwater if necessary. 7/1/91 target start date for V.E.S. with ground water treatment to start 6/92 (assuming 30 day turnaround time for DEC approval of design). |
Former Staff |
3/15/1991 |
Update or Other Action |
CAPR; Hart Crowser submitted a corrective action plan for Mapco on March 15, 1991. On April 16 the department responded with questions on the proposed VES and a request for ground water cleanup in conjunction with the VES. |
Former Staff |
4/16/1991 |
Leaking Underground Storage Tank Corrective Action Underway |
RAPR; Plan approved but groundwater remediation plan needs to be finalized based on results of aquifer characterization. 6/14/91 remedial action plan schedule received from Hart Crowser. |
Former Staff |
5/15/1991 |
Update or Other Action |
CAPR; Hart Crowser submitted a ground water corrective action plan and additional information on the proposed VES. On May 28 the department responded with approval of the VES and aquifer characterization plan. Design of ground water treatment system to be based on results of aquifer testing. |
Former Staff |
8/23/1991 |
Update or Other Action |
RAU; VES installed and operational. |
Former Staff |
9/19/1991 |
Update or Other Action |
RAU; Ground water treatment system installed and operational. |
Former Staff |
8/30/1994 |
Leaking Underground Storage Tank Corrective Action Underway |
LCAR; |
Former Staff |
10/22/1994 |
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 report. |
Former Staff |
7/25/1995 |
Update or Other Action |
CAPR; Met with RP to discuss status of site. |
Former Staff |
8/15/1995 |
Leaking Underground Storage Tank Corrective Action Underway |
LCAR; Reviewed quarterly monitor well report required by COBC. |
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 |
9/17/2001 |
Update or Other Action |
Changed ADEC Project Manager from Bush to Wiegers |
Cynthia Pring-Ham |
3/11/2003 |
Update or Other Action |
Per J.Wiegers, changed file number from L30.08 to 2100.26.023 |
Wendy Uzzell |
6/19/2003 |
Document, Report, or Work plan Review - other |
Spring remediation and monitoring report submitted. Vapor concentrations in VES system peaked at 81.8 ppm GRO in September 2002 and have generally declined since then. However, FID indicates vapors have increased approximately 10-fold since July 2002. Cause of the increase is not known. Pumping continues from two recovery wells - highest benzene concentration in discharge was 6.8 ppb. No constituents were detected in the wells, except for MW-4, which contained benzene at 3.5 ppb. S&W will investigate reason for increased vapor recovery. |
Janice Wiegers |
10/10/2003 |
Update or Other Action |
Transport approval approved for 15 cubic yards of soil while replacing the fill overflow bucket, which was found to have a hole in it. |
Janice Wiegers |
11/14/2003 |
Document, Report, or Work plan Review - other |
Groundwater monitoring report submitted for September sampling. BTEX was not detected in any of the four on-site wells. Samples collected from the system exhaust continued to contain higher levels than normal. The reason for elevated vapor concentrations has not yet been identified. S&W recommended monthly monitoring of Pump & Treat water discharge to further evaluate increase vapor recovery issue. |
Janice Wiegers |
11/14/2003 |
Update or Other Action |
Landowner calls to request that he be copied on correspondence from DEC. |
Janice Wiegers |
3/19/2004 |
Document, Report, or Work plan Review - other |
Workplan for lead scavenger sampling approved. EDB will be analyzed with EPA method 8260. Further evaluation with a method with a lower detection limit may be conducted in future sampling events. |
Janice Wiegers |
6/17/2004 |
Update or Other Action |
File review to approve cost recovery invoice. |
Lynne Bush |
9/7/2004 |
Leaking Underground Storage Tank Corrective Action Underway |
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 |
Leaking Underground Storage Tank Corrective Action Underway |
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 |
5/9/2006 |
Update or Other Action |
Project management transferred from Bush to O'Connell. |
Aggie Blandford |
5/12/2006 |
Document, Report, or Work plan Review - other |
Received April to December 2005 monitoring report. Pump and treat system dismantled in 2005. VES operating in 2006. No Table C exceedances 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 monitoring report. Contaminants not detected in groundwater samples however VES system continues to recover significant volume of hydrocarbon vapors. |
Bill O'Connell |
12/5/2007 |
Update or Other Action |
Received Petition for Conditional Closure. ADEC approval withheld until VES no longer in operation. |
Keather McLoone |
12/6/2007 |
Update or Other Action |
Received Petition for Conditional Closure |
Keather McLoone |
2/28/2008 |
Update or Other Action |
DEC meeting with S&W and HSS. S&W to resubmit petition for conditional closure with updated information regarding shutdown of VES. |
Keather McLoone |
3/7/2008 |
Update or Other Action |
Revised Petition for Conditional Closure submitted. |
Keather McLoone |
3/25/2008 |
Institutional Control Record Established |
Notice of remaining contamination- Soil contaminated with BTEX and GRO above the ADEC Tables B1 and B2 cleanup levels remained in the former tank excavations. |
Keather McLoone |
3/25/2008 |
Conditional Closure Approved |
|
Former Staff |
3/25/2008 |
Institutional Control Record Established |
ADEC has determined that the cleanup actions employed at the HSS No. 608 facility were effective in removing a majority of the contaminant source material. The UST system was upgraded to prevent further releases and much of the contaminated soil was excavated. A groundwater P&T system and a VES were installed and operated for several years. 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 at HSS No. 608.
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.
2. ADEC approval is required prior to offsite transport of soil or groundwater 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. Further ground water monitoring will not be required, and existing monitoring wells 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.
6. A deed notice (Notice of Environmental Contamination) shall be recorded in the State Recorder’s Office that identifies the nature and extent of contamination at the property and any conditions that the owners and operators are subject to in accordance with this decision document. A copy of the recorded notice shall be provided to ADEC within thirty (30) days of its recordation |
Keather McLoone |
4/29/2008 |
Update or Other Action |
Notice of Environmental Contamination received as recorded and signed by Holiday. |
Keather McLoone |
5/5/2008 |
Update or Other Action |
Approval of Work Plan for Monitoring Well and Remediation System Decommissioning at Holiday Station Store 608 for 2008 work received 5/2/2008. |
Keather McLoone |
7/17/2008 |
Document, Report, or Work plan Review - other |
Receipt of final report electronically. No new information of significance since petition for conditional closure and issuance of conditional closure decision. The six wells sampled were nondetect for both benzene and total BTEX during the November 2007 event. Groundwater samples were below Table C for over 4 years. The VES system was sampled and found to be nondetect for benzene and GRO prior to shutdown and had been below 5 and 50 ppm respectively for four consecutive events. |
Keather McLoone |
9/15/2008 |
Update or Other Action |
Receipt of Monitoring Well and Remediation System Decommissioning Report. Four monitoring wells (MW1, MW2, MW3, and MW4) were decommissioned by removing well casing and backfilling. Two groundwater recovery wells (RW-1 and RW-2) were decommissioned by cutting off the riser pipes and backfilling. The riser pipes for the vapor extraction system were cut off between 0.5 and 1 ft bgs, capped, and covered with a monument for potential re-use. |
Keather McLoone |
6/18/2009 |
Site Visit |
Arcadis is conducting a Phase II evaluation at the adjacent Former Midas site. They're advancing six Geoprobes to collect soil and groundwater data in order to investigate potential migration of contamination onto the property from HSS 608 as well as migration downgradient from the former Midas facility. |
Keather McLoone |
7/29/2009 |
Update or Other Action |
DEC CS program notified that starting 8/3/09 work will begin at this site to remove the tanks, dispensers, and lines but not the building. Alaska Fuel Systems will be providing the UST worker for the project and has subcontracted someone to do the excavation work. Shannon & Wilson’s involvement will be sample collection, tank removal documentation, and reporting. UST program received notification. |
Keather McLoone |
7/31/2009 |
Update or Other Action |
DEC has requested the information obtained during the investigation conducted by Arcadis. Another request emailed today. DEC has not yet been informed of Arcadis's client or future activities planned for this or the Former Midas Facility sites other than notification from S&W of "tank yank" activities. |
Keather McLoone |
8/3/2009 |
Update or Other Action |
Figures and analytical data received from Arcadis - 6 probes on adjacent Former Midas facility property resulted in 6 soil samples and 3 groundwater samples. Soil samples were collected from depths ranging from 9 to 12 feet bgs. All samples were analyzed for DRO and select samples were analyzed for GRO, BTEX and/or VOCs. None of the samples exceeded Method Two most conservative or Table C criteria. |
Keather McLoone |
8/20/2009 |
Site Visit |
Site visit to observe status of onsite stockpile and confirm that it is still onsite and covered. |
Keather McLoone |
8/20/2009 |
Update or Other Action |
Approved Request to Transport Contaminated Soil from recent "tank yank" activities at this site. Holiday removed all of the fuel storage and distribution system components and will likely end its lease at this property. |
Keather McLoone |
12/10/2009 |
Meeting or Teleconference Held |
Meeting with S&W and UST Program representatives to discuss deficiencies in recent tank yank site assessment. |
Keather McLoone |
12/16/2009 |
Update or Other Action |
S&W submitted photos taken during August 2009 tank closure site assessment. |
Keather McLoone |
1/15/2010 |
Update or Other Action |
S&W resubmitted (previously submitted on 12/14/2009) tank closure information to include laboratory data, data review checklists and field notes. |
Keather McLoone |
1/20/2010 |
Document, Report, or Work plan Review - other |
Letter from DEC (UST Program) to S&W regarding compliance and requiring submission of s site assessment addressing the deficiencies in the sampling procedures (summarized as follows from Robert Weimer's email - wording in compliance letter a bit different):
1. There were not enough tank excavation samples collected as required in 18 AAC 78.090(d)(2)(B)(ii) and those samples were not collected properly. For an excavation of 1,100 square feet a minimum of 6 analytical samples are required, to be collected where contamination is most likely to be present based on field readings. Only 4 locations in the excavation had analytical samples collect, but those were not collected based on field readings, so 6 more analytical samples are required. The base and sidewalls of the excavation will need to be field screened as per section 4.4 of the UST Procedures Manual, with six analytical samples collected where contamination is most likely to be present based on field readings.
2. The vent piping was not assessed as required in 18 AAC 78.090(d)(2)(B)(v). There was no field screening or analytical samples collected for the vent piping, and it appears that the vent piping was abandoned in place without any assessment.
3. The piping from the tanks to the dispensers was not sampled as required in AAC 78.090(d)(2)(B)(v). While there were field screening readings, there were no piping analytical samples collected.
4. The excavated soil was not field screening properly and did not have analytical samples collected as required in section 4.5.1 of the UST Procedures Manual. Not enough field screening samples were collected and the stockpile analytical samples were not collected based on field screening readings. According to the report 200 cubic yards of excavated soil was used as backfill at the site. This soil will need to be field screened and have analytical samples collected as required in 4.5.1 of the UST Procedures Manual.
|
Keather McLoone |
1/21/2010 |
Meeting or Teleconference Held |
Robert Weimer and Bill Steele met with Shannon and Wilson to discuss options for completing the UST closure assessment. |
Keather McLoone |
2/16/2010 |
Update or Other Action |
Receipt of Site Assessment of Tank Closure Area workpan with this date. This document is in response to deficiencies in site assessment work performed August 2009. S&W proposes to advance 21 borings to assess concentrations remaining on site. |
Keather McLoone |
3/3/2010 |
Site Visit |
Site visit conducted to observe additional site characterization activities being performed in response to ADEC comment's on previous (August 2009) site assessment activities performed in conjunction with removal of the last known underground storage tanks at this location. |
Keather McLoone |
4/27/2010 |
Document, Report, or Work plan Review - other |
Receipt and review of Limited Phase II Environmental Site Assessment report from Arcadis on behalf of Walgreens conducted at this site. No additional information presented compared to information provided previously (see 8/03/09 entry). |
Keather McLoone |
5/4/2010 |
Document, Report, or Work plan Review - other |
Review of Supplemental Tank Closure Assessment report received on 4/30/10 from S&W. Twenty-one borings were advanced and additional investigation of the tank excavation, distribution piping, vent piping, dispensers including additional characterization of south side dispenser, and excavations stockpile (material returned to the excavation) was conducted. All soil sample results were less than Method Two migration to groundwater with the exception of benzene in B21S3B which was in the south dispenser area and B13S3B which was one of 4 analytical samples from the excavation bottom area. These results were 0.0418 mg/kg and 0.0274 mg/kg, respectively. DEC has no comment on this report. |
Keather McLoone |
5/24/2010 |
Update or Other Action |
Receipt and review of Contaminated Soil Management Plan submitted by Walgreens in preparation for upcoming construction. |
Keather McLoone |
6/5/2010 |
Site Visit |
Site visit to observed demolition and what looks to be excavation activities after removal of the buildings, the foundations, and the surrounding pavement at this and the adjacent locations. Another attempt will be made to visit the site when there are workers on site to inquire about any visual or olfactory observations. Later inquiries only brought comment about the unexpected tank found on the adjacent Midas site. |
Keather McLoone |
6/16/2010 |
Potentially Responsible Party/State Interest Letter |
Sent to Walgreens as the new landowner. |
Keather McLoone |
7/28/2010 |
Underground Storage Tank Site Characterization or Assessment |
A previously unknown and undocumented 3,000 gallon UST containing approx 100-200 gallons of mixed fuel & water was discovered during site work. Emerald Services removed and disposed of its contents. The tank was structurally sound, lacking holes or evidence of leaks. No visible soil staining was evident, and field screening/analytical sampling did not provide evidence of further contamination. The tank was taken to Emerald's Viking facility for cleaning and disposal. |
Richard Bernhardt |
11/1/2010 |
Update or Other Action |
Letter sent on this date commenting on the supplemental tank assessment report. Holiday requested a response during the October 28th meeting. Letter stated that the site would remain a CC with ICs site and there was no other specific comment. |
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 |
4/20/2012 |
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 |
7/24/2012 |
Update or Other Action |
Issued a letter to remove Holiday Station Store #608 from the 1991 Compliance Order By Consent (COBC) after its verbiage was reviewed by DOL (Breck Tostevin). |
Richard Bernhardt |
12/1/2015 |
Institutional Control Compliance Review |
IC compliance review conducted, staff name changed from Nuechterlein to IC Unit, scheduled to send an IC reminder letter in the near future. |
Evonne Reese |
1/8/2016 |
Institutional Control Compliance Review |
IC compliance review conducted and an IC reminder letter issued to the responsible party on this date. Reminder system set to follow-up in 2021. |
Kristin Thompson |
1/14/2016 |
Institutional Control Update |
In response to the IC reminder letter ADEC was informed by Holiday Station that their property lease at this location ended in 2009. They also provided the landowner contact information. The landowner information in the Affiliates section has been updated. Reissue the IC reminder letter and send to the property owner. |
Evonne Reese |
2/19/2016 |
Institutional Control Update |
IC reminder letter reissued to the updated landowner contact on this date. |
Kristin Thompson |
5/18/2016 |
Institutional Control Update |
IC reminder letter was returned. Re-issuing the letter on this date. |
Kristin Thompson |
6/1/2016 |
Institutional Control Update |
IC reminder letter was returned after several attempts to contact the responsible party. Returned letter will be retained in the hard file. Reminder system set to attempt contact again in one year from now. |
Kristin Thompson |
3/22/2017 |
Institutional Control Compliance Review |
IC compliance review conducted. Closure/IC Details updated. Current landowner contact information updated. IC reminder letter issued. Reminder system set to follow-up every three years. |
Kristin Thompson |
10/12/2023 |
Institutional Control Periodic Reporting |
IC compliance review completed on 10/12/23 and an IC reminder letter was issued to the landowner. |
Livia Bracker |