| Action Date |
Action |
Description |
DEC Staff |
| 9/9/1987 |
Site Visit |
FI; Hart Crowser identified subsurface soil and groundwater contamination. Work authorized by R.G. Birkinshaw. |
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 76546 ADD; Petroleum contaminant. (This action appended from former reckey "91210010204" - See.) |
Former Staff |
| 2/10/1990 |
Leaking Underground Storage Tank Cleanup Initiated - Petroleum |
LCAU; :LCAU Date changed DB conversion |
Former Staff |
| 2/28/1990 |
Underground Storage Tank Site Characterization or Assessment |
PA; Water well survey by Hart Crowser. |
Former Staff |
| 3/26/1990 |
Leaking Underground Storage Tank Corrective Action Underway |
RAPR; Work Plan and Quality Assurance for assessing lateral and vertical extent of contamination; revised 4/26, 5/7/90; Hart Crowser. |
Former Staff |
| 5/10/1990 |
Site Visit |
FI; Passing UST and line tests; Grizzly Alaska Sales & Service |
Former Staff |
| 7/31/1990 |
Release Investigation |
SI; Dames & Moore Report; Benzene > 5 ppb in groundwater; highest soil and groundwater contamination adjacent to UST array. Benzene 2.4 ppm in groundwater sample M4-MW-2, 0.52 ppm in sample M4-MW-3. 0.022 ppm tetrachloroethane in groundwater sample M4-MW-2. 44,000 ppm TPH, 1056 ppm BTEX in soil sample M4-MW-2. Groundwater at 5 to 6 feet below the surface and flows towards the south/southwest. BTEX not detected in monitoring wells south of International Airport Rd. ADEC is requiring site remediation. D&M stated vapor extraction and soil removal are viable soil remediation options. |
Former Staff |
| 10/15/1990 |
Site Visit |
FI; Organic vapor not detected in Alaska Business College crawl space; Dames & Moore |
Former Staff |
| 4/5/1991 |
Long Term Monitoring Established |
MS; Dames & Moore sent in water elevation survey & quarterly sampling results. Total petroleum hydrocarbons were highest in M4-MW-2 5,850 ppm & as was benzene at 9,610 ppb with total BTEX at 43,970 ppb. Monitoring wells M4-MW3, M4-MW4, M4-MW5 could not be samples due to ice buildup in well casings. |
Former Staff |
| 12/9/1991 |
Long Term Monitoring Established |
MS; Quarterly groundwater monitoring was conducted from December 9 - 11, 1991. A quarterly report was submitted on January 16, 1992. the report indicates that total BTEX concentrations in groundwater range from non-detectable to over 10 ppm. A corrective action plan has recently been reviewed and approved. |
Former Staff |
| 1/17/1992 |
Update or Other Action |
CAPR; A corrective action plan was submitted on November 6, 1991. The department requested additional information on the plan. Shannon and Wilson submitted additional information on January 17th. The plan was approved on April 1, 1992 with the condition that the schedule be ammended to allow for start-up of the vapor extraction/air sparging system by July 31, 1992. |
Former Staff |
| 11/4/1992 |
Update or Other Action |
UPD; Call from ASSU, contaminated soil encountered and removed during repair of waterline break. Soils currently at MOA Klatt Road Maint yard. Mapco will take care of the soils. |
Former Staff |
| 11/25/1992 |
Underground Storage Tank Site Characterization or Assessment |
SA1R; Two 10,000 gal. gasoline and one 5,000 gal. diesel tanks removed. Contaminated soil found to GW. Contaminated soil placed back in excavation over clean fill for vapor extraction. Excavation still hot. Max. 86.5 benzene, 13,700 GRO, 35,500 DRO on side walls. (This data appended from former reckey "91210010204", See.) |
Former Staff |
| 12/14/1992 |
Leaking Underground Storage Tank Corrective Action Underway |
CAPR; Verbal approval given to S&W to move 50 cy of contaminated soils excavated by AWWU during waterline repair 11/1/92, from MOA King Street to Mapco #2 longterm storage cell where other Mapco soils are stored/treated by VES. (Data appended from former See site "91210010204".) |
Former Staff |
| 10/21/1994 |
Leaking Underground Storage Tank Corrective Action Underway |
LCAR; Performed a Corrective Action Report review. |
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 |
| 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 |
Remediation System Monitoring and Groundwater Monitoring report submitted. Groundwater samples collected in September. Well CGMW contained 2,200 ppb benzene, 4.5 ppm GRO and 5.6 ppm DRO. Stack exhaust contained non-detectable to 0.035 ppm benzene. |
Janice Wiegers |
| 3/11/2003 |
Update or Other Action |
Per J.Wiegers, change file number from L30.04 to 2100.26.020 |
Wendy Uzzell |
| 4/18/2003 |
Update or Other Action |
Remedial Objective and Implementation Strateg Overview letter submitted. Williams proposing to shut off system for rebound evaluation and pursue a NFRAP. |
Janice Wiegers |
| 11/14/2003 |
Document, Report, or Work plan Review - other |
Remediation system and groundwater monitoring report submitted. System turned off in June. Groundwater samples collected in July and September. The highest concentrations were observed in CGMW (benzene at 290 ppb in July and DRO at 7.5 ppm in September). Contaminants not detected above cleanup levels in other wells. |
Janice Wiegers |
| 12/30/2003 |
Update or Other Action |
Received call from DOT. Road improvements are under evaluation in this area. |
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 |
| 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 |
| 9/27/2004 |
Leaking Underground Storage Tank Corrective Action Underway |
Approved delay for bi-annual reporting to include more recent remediation monitoring data. The new target date is early December. |
Lynne Bush |
| 10/1/2004 |
Leaking Underground Storage Tank Corrective Action Underway |
A decision was made in 2004 by Williams and Holiday to sample selected sites for lead scavengers. The purpose of this investigation is to determine whether or not lead scavenger compounds such as ethylene dibromide and ethylene dichloride are viable constituents of concern.
This site was not included for lead scavenging investigation based on risk ranking. Risk rank was determined by the presence of wells and potential receptors, known period of leaded gasoline sales at this site, the known presence/absence of Pb scavengers, and the general level of hydrocarbon concentrations. The first event for chosen high risk sites occurred in Spring 2004 |
Lynne Bush |
| 10/1/2004 |
Leaking Underground Storage Tank Corrective Action Underway |
Future plans for this site include continued monitoring, and continued evaluation of rebound effects since the remediation system was shut down. |
Lynne Bush |
| 10/20/2004 |
Leaking Underground Storage Tank Corrective Action Underway |
The soil vapor extraction. Air injection system was shut down in June 2003 and will remain in that mode for at least one more sampling cycle. The groundwater sampling frequency remains bi-annually in March and September. |
Lynne Bush |
| 11/1/2004 |
Leaking Underground Storage Tank Corrective Action Underway |
Updated Facility Name, Responsible Party information, Comment section, and Problem description on the Storage Tank Program database, to accommodate more recent data and the change in ownership. |
Lynne Bush |
| 12/30/2004 |
Update or Other Action |
Received semi-annual moniitoring report. |
Lynne Bush |
| 1/7/2005 |
Update or Other Action |
Received request for corrective action plan modification. |
Lynne Bush |
| 2/1/2005 |
Document, Report, or Work plan Review - other |
Reviewed file and request. |
Lynne Bush |
| 2/3/2005 |
Update or Other Action |
Prepared worrk plan modification approval letter. Excerpt: "Removal of Wells M4MW4 and M4MW5 from the sampling regime may begin immediately. The monitoring wells should remain intact should future sampling be indicated. Any future petition for NFRAP will depend upon a rebound test and re-evaluation of monitoring locations to devise a successful long term monitoring program." |
Lynne Bush |
| 2/3/2005 |
Update or Other Action |
Updates to TAS, database, and file. |
Lynne Bush |
| 9/21/2005 |
Document, Report, or Work plan Review - other |
Preparation of response letter to Holiday concerning their request for no Furthe Remedial Action, received 5 Aug 2005' |
Lynne Bush |
| 9/23/2005 |
Document, Report, or Work plan Review - other |
Continued review of file and latest data. |
Lynne Bush |
| 9/26/2005 |
Document, Report, or Work plan Review - other |
Referral of NFRAP recommendation for Supervisory review and comment. |
Lynne Bush |
| 10/12/2005 |
Conditional Closure Approved |
The NFRAP includes an abbreviated site history and a concise explanation of current site conditions. The impacted groundwater plume has been determined to remain on site, based on groundwater monitoring data. There are no knoen potential receptors or completed pathways associated with remaining impacted media. The area is served by Municipal water and the nearest water bady, Campbell Creek, is hydraulically upgradient. |
Lynne Bush |
| 10/12/2005 |
Institutional Control Record Established |
The ICs require: 1. ADEC shall be notified prior to excavation and off-site transport of soil or groundwater from this site in accordance with 18 AAC 78.274(b);
2. Groundwater monitoring will be conducted on an annual basis, with sampling to be performed in April or May, as weather conditions allow, for benzene, toluene, ethylbenzene, and xylenes. Samples will be collected from monitoring wells M4MW1, CGMW, 4T8MW, AIS3, and AIS4. The report will be submitted to ADEC within thirty (30) days of the sampling event;
3. Monitoring wells M4MW4 and M4MW5 and the VEAIS aboveground components shall be permanently decommissioned in accordance with accepted practices;
4. The installation of groundwater wells at this site is prohibited without the prior approval of ADEC;
5. 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 submitted to ADEC within thirty (30) days of its recordation. |
Lynne Bush |
| 10/12/2005 |
Update or Other Action |
NFRAP letter and Notice of Environmental Contamination letters finalized and mailed to responsible party for review, signature, notarization, filing of the deed notice, and then providing proof of filing to the Department. |
Lynne Bush |
| 10/21/2005 |
Update or Other Action |
Updates to databases completed. |
Lynne Bush |
| 1/20/2006 |
Update or Other Action |
Entered into IC Tracking Module |
Lynne Bush |
| 5/15/2006 |
Update or Other Action |
Project manager changed from Bush to O'Connell |
Bill O'Connell |
| 5/15/2006 |
Document, Report, or Work plan Review - other |
Received July and October 2005 groundwater monitoring report. Benzene and/or DRO and/or GRO and/or RRO above Table C inM4MW1, CGMW, AIW3, and AIW4 in 2005. |
Bill O'Connell |
| 6/11/2007 |
Document, Report, or Work plan Review - other |
Received 2006 groundwater monitoring report. Monitoring well CGMW had benzene above Table C. Samples not analyzed for DRO or GRO. |
Bill O'Connell |
| 6/10/2008 |
Document, Report, or Work plan Review - other |
Date of receipt of 2007 report electronically. QA/QC review conducted. Wells sampled for BTEX only although recent exceedances of Table C values for GRO, DRO, and RRO. DEC approved removing 4T8 from sampling program as it could not be located during the 2007 event, was deemed to likely have been destroyed during site construction and renovation activities, and had not exceeded Table C levels since 2004. S&W recommended petitioning for a reduction in sampling frequency and establishing an endpoint for groundwater monitoring. |
Keather McLoone |
| 4/24/2009 |
Update or Other Action |
Reviewed draft table of monitoring results including 2008 sample events, laboratory data, and laboratory review checklist in response to request to request to change groundwater monitoring plan as follows: decrease sampling frequency to biennial (once every 2 years) for Wells CGMW and AIW4, and discontinue sampling Air Injection Well AIW3 as well as decommission Wells M4MW1 and AIW3. ADEC has no objection to these proposed changes and decommissioning. |
Keather McLoone |
| 4/28/2009 |
Update or Other Action |
Receipt of April 2008 Groundwater Monitoring report. Review included lab review checklist. Water was collected from 3 onsite wells and analyzed for BTEX. Benzene above Table C in CGMW and AIW4. |
Keather McLoone |
| 7/20/2009 |
Document, Report, or Work plan Review - other |
Review of Air Injection Well Decommissioning at Former Williams Express Site No. 5004 report received 7/16/2009. Air Injection Well AIW3 was decommissioned on May 21, 2009. Monitoring well M4MW1 could not be located. |
Keather McLoone |
| 12/11/2009 |
Update or Other Action |
Letter sent to document approval of decommissioning report and request that they continue to atttempt to locate M4MW1. |
Keather McLoone |
| 3/5/2010 |
Document, Report, or Work plan Review - other |
Review of May 2009 Groundwater Monitoring report submitted on March 1, 2010. Review included Laboratory Data Review Checklist. Samples were collected from AIW3 and CGMW. AIW3 was inadvertently sampled (and decommissioned shortly after) instead of AIW4. GRO/DRO/RRO analyses were dropped from the monitoring program following the 2005 NFRAP letter which specified continued monitoring for BTEX. The report proposes an endpoint for this groundwater monitoring program consisting of stable or decreasing trends in benzene results. A long term monitoring complete decision for this site should also include data showing that trends in gasoline, diesel, and residual range organics are stable or decreasing. Therefore, ADEC recommends that these analyses be included in future monitoring events in order to achieve a long term monitoring complete decision. This recommendation is supported by a review of the December 2003 and March 2004 Groundwater Monitoring report for this site which discusses results obtained before these analyses were dropped from the sampling program. |
Keather McLoone |
| 9/8/2010 |
Update or Other Action |
A consultant contacted by ADOT claims that contaminated soil was encountered in the right of way during excavation for new stop lights at the northeast corner of Old Seward and International Airport Rd. A heated head space sample was checked with a PID and had a reading of 1.2 ppm. "Some" hydrocarbon odor and sheening was noted. Documentation such as field notes or photos was requested but none provided. Soil was excavated and hauled to ASR for treatment but there is some debate about petroleum versus peat etc..... |
Keather McLoone |
| 5/5/2011 |
Document, Report, or Work plan Review - other |
Review of April 2010 Groundwater Monitoring report - Former Williams Express 5004. Review includes laboratoray data review checklist. Two wells, AIW4 and CGMW, were sampled. CGMW contained GRO and benzene above Table C in concentrations similar to historical results. |
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 |
| 3/1/2012 |
Update or Other Action |
Found deed notice in DNR Recorder's Office records and attached document in CS database. |
Kristin Thompson |
| 11/19/2012 |
Document, Report, or Work plan Review - other |
Received a combined 2011 and 2012 work report. The only two remaining monitoring wells (CGMW and AIW4) were both sampled for BTEX, GRO, DRO, & RRO. Highest contaminant concentrations were detected in CGMW with benzene at 0.0627 mg/L, DRO at 2.78 mg/L, and RRO at 1.76 mg/L. All other analytes and locations were below ADEC cleanup levels and/or not detected. Concentrations continue to decrease since CC-IC was granted in 2005, and approval will be granted to end annual groundwater monitoring. |
Richard Bernhardt |
| 12/5/2012 |
Meeting or Teleconference Held |
Conducted an RP meeting with Becky Brown and her consultants from S&W. Williams verbally petitioned, and ADEC verbally agreed to remove the IC requirement to conduct annual groundwater sampling, given current site conditions. A formal approval letter will be issued. Remaining ICs will continue to apply, and a requirement to report the status of the parking lot's asphalt, which serves as a cap over existing contamination, will be applied with a requirement to characterize and potentially resume remediation if the cap is removed. (WES #5021 was also discussed). |
Richard Bernhardt |
| 5/22/2013 |
Document, Report, or Work plan Review - other |
Received and approved a work plan to decommission the remaining monitoring wells at WES# 5004 in accordance with the terms of the 2012 IC modification decision. |
Richard Bernhardt |
| 9/4/2013 |
Document, Report, or Work plan Review - other |
Monitoring wells AIW4 and CGMW were decommissioned in acordance with ADEC guidance |
Bill O'Connell |
| 12/2/2015 |
Institutional Control Compliance Review |
IC compliance review conducted, staff name changed from Nuechterlein to IC Unit, the groundwater monitoring requirement in the Closure/IC Details was removed in 2012 since long term monitoring was completed, periodic review is set for every five years, and the application is set to issue an IC reminder letter in 2018 |
Evonne Reese |
| 6/18/2018 |
Institutional Control Compliance Review |
IC compliance review conducted. Affiliates information updated. ICs Verification letter issued. Reminder system set for future follow-ups to occur every five years. |
Kristin Thompson |
| 6/25/2018 |
Institutional Control Update |
Received email confirmation from the current landowner that the land use has not changes and all other ICs are being complied with. |
Evonne Reese |
| 11/7/2023 |
Institutional Control Compliance Review |
IC Compliance review completed on 11/7/2023 and an IC reminder letter was issued to the landowner. |
Livia Bracker |
