Site Report: Bentley Mall East Satellite

Site Name:	Bentley Mall East Satellite
Address:	32 College Road, Fairbanks, AK 99701
File Number:	102.38.122
Hazard ID:	4033
Status:	Active
Staff:	Jim Fish, 9074512117 james.fish@alaska.gov
Latitude:	64.850310
Longitude:	-147.700010
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.

Site Chronology
IC / Closure Details
Documents
Associated Sites

Problems/Comments

A Phase II Site Assessment conducted on the Bentley Mall property indicated concentrations of PCE (tetrachloroethene) and TCE (trichloroethene) above ADEC soil and water cleanup levels. The concentration of PCE and TCE are highest along the south boundary adjacent to College Road and in particular, the southeast corner. The highest level found in groundwater samples was 2,910 ug/l and the highest level for TCE found in groundwater samples was 97.5 ug/l. A soil sample taken between the East Satellite Building and the VIP Dry Cleaners at five feet bgs., had a high PCE reading of 0.294 mg/kg. A ground water investigation conducted during the winter 2004/2005 found that the PCE ground water plume extends beyond Noyes Slough into the northern portion of the Charles Slater Homestead Subdivision. PCE soil and groundwater contamination was detected on Fred Meyer-East property (Tax Lot 221 owned by the Bentley Family Charitable trust) during Phase I investigations dated July 2002 and September 2002. Tax Lot 221 is adjacent to and generally down gradient from the Bentley Mall property. See file 100.38.166 for other detected contaminants and details.

Action Information

Action Date	Action	Description	DEC Staff
4/8/2003	Update or Other Action	Letter sent to Bentley Mall Associates requesting site characterization of on-site soil contamination and site characterization of both on and off-site ground water contamination. Additional letter sent to VIP Cleaners requesting site investigation of its property. It is inconclusive at this time the release source for the PCE/TCE contamination.	Douglas Bauer
4/9/2003	Site Added to Database	PCE and TCE contaminated soil and groundwater.	Deborah Williams
4/9/2003	Site Ranked Using the AHRM	Preliminary ranking.	Deborah Williams
4/9/2003	Update or Other Action	Telephone conversation with Mr. Mike No, owner of VIP Cleaners notifying him of his letter.	Douglas Bauer
4/10/2003	Update or Other Action	Bentley Mall Associates & VIP letters faxed to William Earnhart with Triple Net Properties, prospective purchaser of Bentley Mall on 4/8/2003.	Douglas Bauer
12/5/2003	Meeting or Teleconference Held	Met with Mr. Dave Rawson, managing member of Bentley Mall LLC; Mr. Ed Willis, Bentley Mall manager; and Mr. Lyle Gresehover, local environmental consultant to discuss results of ground water, soil, and soil gas sampling and outline a course of action for 2004	Douglas Bauer
1/8/2004	Update or Other Action	Ledger Code entered in database under ADEC data	Douglas Bauer
1/9/2004	Meeting or Teleconference Held	Meeting with Mr. Lyle Gresehover of Alaska Resources & Environmental Services to discuss site characterization process: development of site conceptual model, data quality objective process, TRIAD approach, task schedules, and potential closure scenarios. Initial draft site characterization work plan scheduled for mid-February.	Douglas Bauer
2/27/2004	Meeting or Teleconference Held	Meeting with Mr. Lyle Gresehover of Alaska Resources & Environmental Services to review the interim-draft work plan for the 2004 field season. Final draft will be submitted soon.	Douglas Bauer
5/11/2004	Site Characterization Workplan Approved	Approved Site Characterization Work Plan dated April 2004. Plan uses major elements of EPA's TRIAD approach. Final report estimated to be completed by November 2004.	Douglas Bauer
7/28/2004	Update or Other Action	Letters were sent to Mr. Cliff Burglin with Bentley Family Trust, Mr. Thomas Alexander with Key Bank, and Mr. John Beers with River Mall Condominium Association requesting that they allow access to their respective properties to Alaska Resources & Environmental Services (ARES). ARES intends to install temporary ground water wells on the properties to delineate the PCE ground water plume that originates in the vicinity of the East Satellite Building.	Douglas Bauer
9/14/2004	Update or Other Action	Forwarded Bentley Family Trust access requirements for Fed Meyer East property to Alaska Resources & Environmental via email.	Douglas Bauer
12/8/2004	Update or Other Action	Lyle Gresehover with Alaska Resources and Environmental called to provide a status report. The installation and sampling of GeoProbe temporary wells is scheduled to start around December 15, 2004. The access issues have been resolved. The work plan is being amended to use a portable gas chromatograph instead of a colorimetric screening device. Preliminary on-site soil sampling results are being forwarded to ADEC.	Douglas Bauer
12/17/2004	Update or Other Action	Approved the use of portable gas chromatograph in place of Color-Tec field screening. GeoProbe ground water sampling scheduled to begin Dec. 20, 2004.	Douglas Bauer
12/23/2004	Meeting or Teleconference Held	Telephone call and on-site meeting with Lyle Gresehover at the East Satellite Building. The vertical sampling interval was discussed; initial sampling with be at 5 foot intervals with subsequent intervals based on an on-going assessment of all collected data. Intervals will expand or decrease as dictated by the analysis of the collected data.	Douglas Bauer
12/29/2004	Update or Other Action	Telephone call with Lyle Gresehover concerning sampling status and proposed sampling schedule.	Douglas Bauer
3/4/2005	Meeting or Teleconference Held	Met with Lyle Gresehover. Alaska Resources and Environment (AR&E) submitted a ground water investigation report for the Bentley Mall East Satellite building. The report summarized the results from the GeoProbe investigation that was conducted last winter. The PCE plume extends beyond Noyes Slough into the northern portion of the Charles Slater Subdivision. The PCE concentration close to the source area is 4600 µg/L, 280 µg/L at 21 below ground surface (bgs) next to Noyes Slough, and 71 µg/L at 35 bgs one block east of Monroe High School. AR&E will conduct a well search in the Slater Subdivision and test the indoor air quality at the East Satellite building, McDonald’s Restaurant, and the Well Fargo Bank which are close to the source area in the near future.	Douglas Bauer
3/7/2005	Meeting or Teleconference Held	Met with J. Frechione & L. Johnson to discuss project status.	Douglas Bauer
3/8/2005	Update or Other Action	Sent by email the latest ground water investigation report to Jim Desmond.	Douglas Bauer
3/30/2005	Meeting or Teleconference Held	Telephone conversation with Lyle Gresehover with Alaska Resources and Environment: preliminary indoor sampling results suggest that the EPA 10-05 risk screening level is exceeded at the East Satellite Building and Wells Fargo Bank. Lyle will furnish results after meeting with Bentley Mall owners. Permission to sample the indoor air at McDonalds has not been received after several inquiries. The local McDonalds is not a local franchise but controlled by the corporate headquarters. Lyle was advised that ADEC will assist in obtaining permission once the East Satellite Building and Wells Fargo results are received. It was agreed that as an interim measure existing HVAC systems should be evaluated and maintained at a positive pressure if possible.	Douglas Bauer
4/4/2005	Update or Other Action	Received by email latest indoor air sampling results. Tetrachloroethene (PCE) and trichloroethene (TCE) were detected in the indoor air at the Wells Fargo Bank and the East Satellite buildings on the Bentley Mall complex. Background levels (indoor and outdoor sources other than the vapor intrusion pathway) were not identified and measured. Therefore, the indoor air concentrations may reflect additional sources other than potential vapor intrusion. The range of PCE and TCE concentrations at the East Building were 33-35 µg/m³ and 0.58-6.8 µg/m³ respectively. At the Wells Fargo Building PCE and TCE concentrations ranged 170-200 µg/m³ and 1.5-1.6 µg/m³ respectively. For comparison, the target levels for the 10E-05 risk factor for PCE and TCE for residential buildings are 8.1 µg/m³ and 0.22 µg/m³ respectively. As an interim mitigation measure, the heating and ventilation systems at both buildings will be inspected and adjusted to maintain a positive pressure if possible. Alaska Resources and Environment (AR&E) has not obtained permission after several attempts to measure the indoor air at the McDonalds Restaurant west of the Wells Fargo Bank. Apparently the restaurant is no longer a local franchise and it is controlled by the corporate headquarters. The Department will assist AR&E in gaining access to the facility. Lindsay Smith was asked to calculate commercial building target levels using standard EPA commercial exposure frequency and exposure duration criteria. Due to her workload, Lindsay will not be able to provide the numbers until the end of April 2005.	Douglas Bauer
4/13/2005	Update or Other Action	An update of the CS web page site summary forwarded to Roblin Davis and Marti Early for posting on the web site.	Douglas Bauer
4/13/2005	Update or Other Action	Sent a certified letter to McDonalds Corporation Real Estate Practices requesting that McDonalds grant permission to Alaska Resources and Environment to conduct indoor air sampling.	Douglas Bauer
4/25/2005	Update or Other Action	Ms. Anne-Marie Wieland with McDonalds Corporation called. Ms. Wieland was referred to the site summary web-page for background information concerning the site investigation. An email was sent to Alaska Resources and Environmental requesting they contact Ms. Wieland directly.	Douglas Bauer
5/4/2005	Update or Other Action	Telephone conversation with Mr. Peters who lives on Ina Street. He wanted clarification on how the ground water contamination from the Bentley Mall may affect his drinking water ( he is on "city water"). Mr. Peters was informed that the Golden Heart Utilities water is ok since the Bentley Mall ground water contamination does not effect Golden Heart's well field.	Douglas Bauer
5/25/2005	Update or Other Action	State Attorney General's informal opinion sent to Alaska Resources and Environment concerning home owner consent for alternative cleanup levels that are determined by a risk assessment. Opinion states that home owner consent is required.	Douglas Bauer
5/31/2005	Update or Other Action	Received by email the indoor sampling results for the McDonald's restaurant from Alaska Resources and Environment. TCE results were 0.11, 0.13, & 0.10 micrograms per cubic meter. PCE results were 0.65, 1.3, & 0.33 micrograms per cubic meter. EPA target levels for 10E-05 risk levels for TCE and PCE are 0.22 and 8.1 micrograms per cubic meter respectively.	Douglas Bauer
6/2/2005	Update or Other Action	Telephone conversation with Lyle Gresehover with AR&E concerning residential well survey in Charles Slatter Subdivision. 65 surveys mailed; 24 responses; 6 wells identified, and only 2 wells in use as irrigation wells.	Douglas Bauer
7/13/2005	Update or Other Action	Telephone conversation with Lyle Gresehover with AR&E. Scheduled meeting on July 15 to discuss location of permanent ground water monitoring wells.	Douglas Bauer
7/15/2005	Meeting or Teleconference Held	Meeting with Lyle Gresehover with Alaska Resources and Environment. Discussed number and location of permanent monitoring wells. Lyle will send monitoring will installation plan for ADEC concurrence.	Douglas Bauer
9/27/2005	Update or Other Action	Telephone conversation with Lyle Greshover concerning placement of monitoring wells and potential public input on cleanup process.	Douglas Bauer
12/7/2005	Update or Other Action	Telephone call with Lyle Gresehover concerning information on ozone treatment.	Douglas Bauer
12/14/2005	Update or Other Action	Information was provided to Mel Langdon, ADEC Storm Water & Wetlands Nonpoint Source program, concerning the possible interception of the Bentley Trust Tax Lot 201 TCE ground water plume and the Bentley Mall East Satellite Building PCE ground water plume by Noyes Slough.	Douglas Bauer
12/29/2005	Update or Other Action	Telephone call with Lyle Gresehover. Confirmed that thermal treatment of PCE is no longer an option at OIT or at any thermal treatment system in Alaska based on ADEC management decision to limit thermal treatment to petroleum contaminated soil only.	Douglas Bauer
1/3/2006	Update or Other Action	Telephone conversation with Mr. David Delawder with Safco Capital Corporation in Los Angeles concerning status of site characterization report.	Douglas Bauer
1/20/2006	Update or Other Action	Received draft site characterization report and draft corrective action plan from Alaska Resources and Evironmental Services.	Douglas Bauer
1/24/2006	Update or Other Action	Sent copy of Site Characterization Report to Kent Patrick Reily with ADEC Water Quality program concerning PCE & TCE contaminatin in Noyes Slough.	Douglas Bauer
1/25/2006	Update or Other Action	Comments emailed to ARES on site characterization report and corrective action plan.	Douglas Bauer
1/26/2006	Update or Other Action	Telephone call with Lyle Gresehover with ARES about ADEC's site characterization and corrective action comments. Lyle is unsure of turn around time for land owner and insurance company approval.	Douglas Bauer
4/12/2006	Update or Other Action	Received final version of site characterization report.	Douglas Bauer
4/14/2006	Update or Other Action	Mailed a CD copy of the site characterization report to Martin Sheld with Wells Fargo Bank Alaska in Anchorage.	Douglas Bauer
4/26/2006	Update or Other Action	Telephone conversation with Lyle Gresehover. Lyle inquired about the approval data for the Site Characterization Report. I responded within two weeks with a target date of the week of May 1st.	Douglas Bauer
4/26/2006	Update or Other Action	Telephone conversation with Lyle Gresehover. Lyle inquired about the approval data for the Site Characterization Report. I responded within two weeks with a target date of the week of May 1st.	Douglas Bauer
5/2/2006	Site Characterization Report Approved	Issued approval letter to Mr. Dave Rawson, managing partner, for Bentley Mall and email to Lyle Gresehover.	Douglas Bauer
5/8/2006	Update or Other Action	Telephone call with Lyle Gresehover. Corrective action work plan will be submitted in approximately two weeks. Work plan will be generic in nature since specific components will selected in the interim. Specifications/user manuals for specific components will be added at a later date.	Douglas Bauer
6/12/2006	Update or Other Action	Approved transport of drill cuttings to OIT, Inc. for thermal remediation.	Douglas Bauer
6/12/2006	Update or Other Action	Telephone conversation with Lyle Gresehover. Corrective Action plan will be submitted soon. I informed Lyle that I will be on emergency family leave from 6/14 to 6/26 and could review the plan if it is sent to my email; I can acess email via the web.	Douglas Bauer
6/20/2006	Update or Other Action	Received Corrective Action Plan via email	Douglas Bauer
6/26/2006	Update or Other Action	Telephone conversation with Mr. Kevin Shields with McKinley Development. Updated Mr. Shields on site history and possible impacts to VIP Cleaners property.	Douglas Bauer
6/27/2006	Cleanup Plan Approved	Reviewed and approved Alaska Resources and Environmental Resources remedial action work plan tilted "Remedial Action Work Plan Bentley Mall Fairbanks, Alaska" dated June 2006.	Douglas Bauer
8/18/2006	Update or Other Action	Telephone conversation and email correspondence with David Delawder with Safdco Capital Company.	Douglas Bauer
9/7/2006	Meeting or Teleconference Held	Meeting with Lyle Gresehover and consultants to discuss potential closure process and schedule.	Douglas Bauer
11/7/2006	Update or Other Action	Respond to email inquiry from Russel Geyser, Gilbraltar Holdings, potential buyer.	Douglas Bauer
11/7/2006	Update or Other Action	Telephone call from Lyle Gresehover. Status report of SVE pilot study will be submitted to ADEC in about two weeks.	Douglas Bauer
11/15/2006	Update or Other Action	Telephone call from Mr. George Lyle with Guess Rudd in Anchorage representing Bentley Mall concerning development of a prospective purchase agreement.	Douglas Bauer
11/22/2006	Update or Other Action	Forwarded AG referral memorandum to J. Frechione for the development of a prospective purchase agreement.	Douglas Bauer
1/17/2007	Update or Other Action	Telephone call with Lynn Pearson with Charter Mac Mortage in California concerning approval of loan for Bemtley Mall. Ms. Pearson wants to know when ADEC will issue a NFA or conditional closure letter. Ms. Pearson had a copy of the startup report. I inform her that ADEC had not received the start up report but was expecting it. If the start up report demonstrated that the remediation was effective and a long-term ground water monitoring plan was approved then ADEC would issue a conditional closure.	Douglas Bauer
1/17/2007	Update or Other Action	Telephone calls from Donald Manning, Environmental Resource Group, and Lyle Gresehover, Alaska Resources and Environmental concerning submittal of start up. Donald will email report and FedEX a copy.	Douglas Bauer
1/22/2007	Meeting or Teleconference Held	Meeting with Lyle Gresehover to discuss start up report and elements of record of decision (conditional closure letter). Preliminary elements are vapor intrusion concentration less than 10E-5 risk level, vadose zone soils less than migration to ground water levels (soil data between vapor extraction wells in less permable soils), and ground water below maximum contaminant levels. Lyle will provide elements that he wants in closure letter via email.	Douglas Bauer
1/25/2007	Meeting or Teleconference Held	Met with Mr. Patrick Cox, Senior Vice President with Steadfast Commercial Properties, and Mr. Ed Willis, Manager of Bentley Mall to discuss status of remediation system and out line conditional closure process. Closure will be based on attainment of indoor air 10E-5 risk level for a commercial setting, migration to ground water soil concentrations, and drinking water standards for ground water for contaminants of concern. The start up for the remediation system strongly suggests that the system is operating as designed; future data will measure its efficiency.	Douglas Bauer
1/30/2007	Update or Other Action	Draft Record of Decision, Conditional Closure, forwarded to J. Frechione for review.	Douglas Bauer
1/31/2007	Update or Other Action	Draft Record of Decision, Conditional Closure, forwarded to Lyle Gresehover with Alaska Resources and Environment for distribution to interested parties and comment.	Douglas Bauer
1/31/2007	Update or Other Action	Draft Notice of Environmental Contamination forwarded to Lyle Gresehover with Alaska Resources and Environment for distribution to interested parties for comment.	Douglas Bauer
3/2/2007	Conditional Closure Approved	Conditional Closure approved by J. Frechione. See attachments	Douglas Bauer
3/2/2007	Institutional Control Record Established	Administrative update (10/25/07)	Evonne Reese
3/21/2007	Meeting or Teleconference Held	Met with Ed Willis with Bentley Mall and potential investors to discuss conditional closure requirements.	Douglas Bauer
3/30/2007	Update or Other Action	Telephone conversations with Ms. Sherry Agrend concerning Lot 13, 515 Noyes, in Charles Slatter Subdivision. It appears the property is located close to and outside of the PCE ground water plume's southern boundary. Due to the variablity in interpolating the boundaries the property may be within the 5 microgram per liter contour; even so, the property can be served by Golden Heart Utilities.	Douglas Bauer
9/17/2007	Update or Other Action	Changed PM from Doug Bauer to Ann Farris	Ann Farris
6/3/2008	Exposure Tracking Model Ranking	Initial ranking with ETM completed.	Ann Farris
7/23/2008	Update or Other Action	Staff received the 2007 Groundwater Monitoring Report and remediation status. The remediation system (AS/SVE) was installed in Sept 2006 and appears to be working. The concentrations in the source area are decreasing. Indoor air concentrations were measured in Wells Fargo and ESB building and were below commerical screening levels. HVAC systems operating during sampling. Asked consultant to identify houses within the plume area that have basements and this will be included in the 2008 report. The groundwater and indoor air sampling will continue. Some updates to the remediation system will continue and monitoring will continue. Appear to be in compliance with the ROD.	Ann Farris
7/10/2009	Update or Other Action	2008 Groundwater Monitoring and Indoor Air Quality Report was received. The results indicate improvement in the groundwater concentrations since the SVE system went online. The indoor air levels have not changed significantly, but remain below the commercial screening levels. Samples collected with HVAC operating. Houses with basements identified in the downgradient area that may be of concern for vapor intrusion. Correspondence made with contractor to discuss these results.	Ann Farris
7/24/2009	Update or Other Action	Staff contacted Wells Fargo regarding their plans for expansion at the Bentley Mall. Sandy Hoglund is primary contact. The plans are on hold until at least 2010 due to economic shift. They did collect soil samples from 3 locations that indicated PCE and TCE above cleanup levels from 2.5 to 14 ft. Staff contacted consultants to set up meeting to discuss these results.	Ann Farris
9/16/2009	Meeting or Teleconference Held	Staff met with Ben Wells from ERG and Mike Hodges with CEECON regarding the site status and plans for upcoming year. Current landowner is Krauss Property Management (907) 456-3900. Ed Willis is still property manager, but working now for Krauss. Rawson has remained liable for the subsurface contamination. Wells Fargo and others are leasing the space. The SVE systems has been modified to include two new wells and tie in an existing vapor monitoring well. Treatment will be focused on the remaining hot spots along college road and the land between the SVE connex and Wells Fargo. Soil samples were collected by CEECON in this area and results will be presented in a report on the remediation system, expected by November. ERG plans to submit letter with this report with recommendations for system exit strategy and long-term monitoring strategy. Discussed need to address VI pathway in residential area. DEC will write letter with the specific regulatory requirements and ERG will respond with work plan to address pathway.	Ann Farris
12/23/2009	Update or Other Action	Remediation Status Report received. Pending review.	Ann Farris
10/7/2010	Meeting or Teleconference Held	IN september, the consultant, ERG, Inc., contacted me regarding their plans to try to shut down the SVE system and address our concerns about the vapor intrusion pathway in the residential neighborhood downgradiet. They since submitted a work plan to collect soil gas along the source area sewer line and Noyes Street (downgradient). The work plan was not satisfactory. The figures describing the sample locations were not legible, but the consultant was in the field doing the work already so they choose to proceed anyway. We discuss the approach they were taking and it appeared to be on the right track, however, I told them I could not guarantee we would accept the data. They expect results back in November and will submit a report.	Ann Farris
8/31/2011	Long Term Monitoring Established	Env. Resource Group (ERG) requested to turn off and remove the soil vapor extraction system. The site has not yet achieved cleanup levels, but the data indicate the system has removed a significant amount of the contamination and reached diminishing returns. ERG recommended monitored natural attenuation as the alternate cleanup plan to achieve final cleanup levels. Their proposed monitoring schedule is: • September 2011 • March/April and Sept/October 2012 and • March/April and Sept/October 2013 After these semi-annual events, ERG would like to move to a single annual event and ultimately even less frequent. Staff approved these changes based on review of the remediation system report, groundwater report, and passivee soil gas and indoor air survey reports received in 2011. An approval letter was sent today.	Ann Farris
5/3/2012	Update or Other Action	Contained-in Determination for EPA Region 10 RCRA Program for soils generated in connection with modification of the soil vapor extraction system at the Bentley Mall East Satellite Building cleanup. 15 cubic yards of soil were found to no longer contain hazardous waste and were approved for thermal remediation.	Jim Fish
5/23/2012	Update or Other Action	Staff changed from Ann Farris to IC Unit.	Evonne Reese
6/29/2012	Update or Other Action	Project manager changed to Jim Fish.	Janice Wiegers
2/22/2013	Site Characterization Workplan Approved	Approved the indoor air-sampling at the proposed locations, collected over an 8-hour time frame (representing a time of anticipated occupancy), without an outdoor air sample, and under standard HVAC operating conditions, and without HVAC operation.	Jim Fish
2/27/2013	Meeting or Teleconference Held	Met with ERG consultant that conducted groundwater monitoring and VI assessments. Learned the east satellite building may be re-leased. Recommended indoor air sampling and additional site characterization to better understand recent increases in PCE concentrations in MW-1 (fall 2012).	Jim Fish
2/28/2013	Potentially Responsible Party/State Interest Letter	DEC sent PRP letters to owners/operators of the VIP Cleaners which is located upgradient from the East Satillite Building. The letter indicated PCE concentrations have increased in MW-1 and requested investigation at VIP Cleaners to determine if new releases have occured.	Janice Wiegers
3/4/2013	Update or Other Action	Response to Annual Groundwater Monitoring and Indoor Air Sampling Report for 2011 (dated January 23, 2012), the First Semi-annual Groundwater Monitoring Report for 2012 (dated August 30, 2012) sent to RP. Addtional soil and/or groundwater sampling from MW-1 vicinity requested; also recommended CSIA for PCE source discrimination. Additional evaluation of Monitored natural Attenuation also requested. DEC's Vapor Intrusion Guidance for Contaminated Sites also sent to RP and consultant; request building survey be completed.	Jim Fish
4/18/2013	Update or Other Action	DEC staff met with VIP Cleaners regarding increasing concentrations observed in the monitoring well located between the former Bentley Mall Cleaners and the VIP cleaners.	Janice Wiegers
4/22/2013	Site Reopened	Site reopened as contaminated site based on new information of increasing concentrations of PCE and TCE in groundwater (monitoring wells MW-1 and MW-5), requirement for further evaluation of vapor intrusion risks associated with groundwater plume (particularly along Noyes Street), EPA's recent IRIS toxicological review of acute exposure risk associated with TCE and uncertainty of TCE expsoure risks at this site, and requirement for further evaluation of monitored natural attenuation of the groundwater plume.	Jim Fish
5/31/2013	Update or Other Action	Response to DEC's review of recent groundwater monitoring and indoor air sampling reports and recommendations for further investigation and monitoring improvements received. Consultant will evaluate or implement DEC's suggestions; work plan pending.	Jim Fish
3/6/2014	Document, Report, or Work plan Review - other	Groundwater Monitoring report receieved; inlcuded CSIA data from two monitoring and 1 former sparge well - CSIA data indicates the isotopic composition of PCE in MW-1 is different from PCE in downgradient wells.	Jim Fish
4/3/2014	Potentially Responsible Party/State Interest Letter	Second letter sent to VIP cleaners sharing data showing isotopic composition of PCE in MW-1, and asking VI Pto obtain the services of an environmental consultant.	Jim Fish
7/10/2014	Update or Other Action	Recieved proposed groundwater quality monitoring plan and reporting of mitigation measures to reduce risk to indoor air for East Satellite Bldg, Wells Fargo Bldg, and new building to be constructed (location of former McDonald's).	Jim Fish
9/5/2014	Update or Other Action	File review by consultant; discussion of using FAIR Project moniotring well (MW-6)	Jim Fish
9/10/2014	Site Visit	Site visit to view application of RetroCoat (Land Sciences™ Vapor Intrusion barrier) primer on East Satellite building floor.	Jim Fish
9/16/2014	Update or Other Action	Met with consultant for file review of contaminated sites near Bentley Mall area.	Jim Fish
9/17/2014	Update or Other Action	Progess report form consultant on GeoSeal installation at new AutoZone building construction. Vapor extraction well VE-7 (from previous remedial system) was pulled and decommissioned (grouted), and buried conveyance piping capped.	Jim Fish
9/18/2014	Site Visit	Brief site visit to view construction progess of new AutoZone building.	Jim Fish
6/23/2015	Update or Other Action	Received Soil gas collection work plan from consultant	Jim Fish
10/22/2015	Update or Other Action	received results of shallow soil gas sampling in ROW in Charles Slater subdivision/neighborhood; elevated concentrations of PCE/TCE/trans-DCE indicate potential for vapor intrusion in nearby buildings. Additional investigation pending.	Jim Fish
10/28/2015	Update or Other Action	Received results of indoor and outdoor air sampling at day care facility; detections indicate a need to resample to determine levels under "worse case" scenario for vapor intrusion and to determine extent of variability	Jim Fish
11/3/2015	Meeting or Teleconference Held	Teleconference with consultant and legal representation to discuss steps forward for additional vapor intrusion assessment and interpretation of indoor air sampling results.	Jim Fish
11/3/2015	Site Visit	Site visit to Day Care facility where indoor air samples were collected to discuss contamination investigation, exposure risks, and pending investigations and requirement for access.	Jim Fish
11/13/2015	Update or Other Action	Letter outlining priorities and requests for additional vapor intrusion evaluation at residential buildings (including Day Care) and school sent to RP today.	Jim Fish
11/24/2015	Meeting or Teleconference Held	Met with principal of nearby high school to discuss contamination issues and vapor intrusion investigations. Consultant also met with principal to determine potential sampling locations.	Jim Fish
12/10/2015	Update or Other Action	Received 2015 Groundwater Monitoring report, Soil Gas Investigation Report, and Indoor Air Sampling Report from consultant (previous attempts to send via email failed because files were too large).. Also contacted day care owner for consent for additional indoor air sampling.	Jim Fish
12/11/2015	Update or Other Action	Discussed passive sampling rationale with consultant; work plan pending.	Jim Fish
12/17/2015	Site Characterization Workplan Approved	Approved indoor air sampling work plan with conditions/comments from DEC. Asked for building survey to be completed and meteorological variable to be recorded during sampling.	Jim Fish
12/30/2015	Update or Other Action	Received final sampling work plan incorporating DEC comments. Sampling planned for early January; building survey to be completed.	Jim Fish
3/15/2016	Update or Other Action	Received work plan for additional soil gas investigation near residential homes and school	Jim Fish
3/21/2016	Site Characterization Workplan Approved	Work plan for (deep) soil gas investigation on residential and school private property approved.	Jim Fish
3/24/2016	Site Visit	Site visit to view soil gas probe installation and decide on sampling locations with consultant with well driller.	Jim Fish
3/25/2016	Site Visit	Site visit to view soil gas sampling	Jim Fish
3/29/2016	Update or Other Action	Received call from property owner concerning access and information on the site; will send results when available.	Jim Fish
4/11/2016	Meeting or Teleconference Held	Teleconference with RP and consultant held to discuss schedule for recent soil gas sampling results review and outreach to sampled property owners.	Jim Fish
4/18/2016	Update or Other Action	Received letter report and analytical results of January 2016 Indoor & Outdoor Air sampling at day care facility in down-gradient portion of the plume. All dry cleaning-related chemicals were non-detect for the areas sampled, by either active (Summa canister) or passive (SKC badges) methods.	Jim Fish
5/3/2016	Meeting or Teleconference Held	Meeting with RP and attorney to discuss next steps for soil gas and vapor intrusion evaluation and outreach to sampled residences.	Jim Fish
10/21/2016	Update or Other Action	Received work plan for groundwater, soil gas, and indoor air sampling.	Jim Fish
11/18/2016	Site Characterization Workplan Approved	Work plan for soil gas and residential and commercial indoor air sampling, and groundwater monitoring well sampling, approved (conditionally approved where additional locations may require indoor air sampling and evaluation of the vapor intrusion pathway)	Jim Fish
4/10/2017	Update or Other Action	Received Draft 2017 BMES Assessment report from consultant	Jim Fish
5/3/2017	Document, Report, or Work plan Review - other	Comment sent to consultant for 2017 Draft assessment report. Generally, soil gas results were orders of magnitude lower than those obtained in 2015-16. DEC asked for additional VI evaluation in autumn of 2017.	Jim Fish
9/18/2017	Update or Other Action	Work plan for 2017 vapor intrusion evaluation efforts received today.	Jim Fish
10/3/2017	Site Characterization Workplan Approved	2017 Work Plan for soil gas, indoor air, and groundwater sampling approved.	Jim Fish
10/25/2017	Meeting or Teleconference Held	Discussed sampling with property owner	Jim Fish
6/8/2018	Update or Other Action	Received soil management plan for F-002 listed debris and soils associated with further remedial system decommissioning, parking lot & building utility upgrades, and renovations for Starbucks.	Jim Fish
6/18/2018	Update or Other Action	ADEC approved the SVE piping decommissioning as follows: ADEC understands that vertical SVE piping components will be pulled from the ground on June 19-20, 2018, and instead of being stored and sampled as proposed in the June 8, 2018 Contaminated Soil and Waste Management Plan BMES Starbucks Upgrades, the piping will be immediately brushed of soil after being pulled from the subsurface, and then cleaned and rinsed with an Alconox solution. The solutions (cleaning and rinsing) will be captured and retained for F-002 hazardous waste disposal via the services of NRC Alaska, while the decontaminated SVE PVC piping will be disposed of as solid waste, no longer containing hazardous waste. ADEC understand this to be consistent with 40 CFR 265.45 Treatment Standards for Hazardous Debris.	Jim Fish
6/20/2018	Meeting or Teleconference Held	Teleconference with consultant an EPA Region 10 RCRA Program to discuss management, storage and disposal of debris and soils associated with the site. Pending Contained-In request to be drafted by consultant to RCRA Program.	Jim Fish
6/20/2018	Update or Other Action	Current modifications to the June 2018 Contaminated Soil And Waste Management Plan, BMES Starbucks Upgrades, Fairbanks, AK, include: 1)Vertical SVE/Air Sparge well casing are being – or have been - pulled, decontaminated and disposed as approved in ADEC’s June 18th email 2)Some wells required over-drilling and resulted in excess soils that will be disposed of as F-002 listed Hazardous Waste 3)For metal piping removed from the subsurface, ADEC request that this same approach (as outline in ADEC’s June 18th email) also be followed 4)A Contained-In Request letter will be drafted by S&W and co-signed by the property owner and sent to EPA Region 10 RCRA Program to propose contaminant levels soils and debris no longer contain Hazardous Waste 5)In lieu of having the Contained-In Determination, work may progress, but RCRA Generator rules and Accumulation Standards (40 CFR part 262) will apply, until a Contained-In Determination is received 6)You anticipate ~10 cu yds. soil and ~200 sq. ft. of concrete materials to be stored (temporarily), sampled, and disposed 7)The approach for soils is to utilize Super-sacs for soil storage until sampling and disposal can be implemented (a connex or enclosure may be used to store the super-sacs); each Super-sac will be sampled 8)Roll-off boxes or similar container may be used for concrete storage until sampling and disposal can be implemented 9)The Staging Area for storing media has changed to be the portion of parking lot just of the East Satellite Building 10)Screening will not be used to determine if materials do not contain hazardous waste – confirmation sampling and laboratory analysis should be used for that determination 11)After the Retro Coat material is re-applied to the interior to the East Satellite Building, follow-up verification of its effectiveness via indoor air sampling will be conducted (this may be captured under the current groundwater monitoring and VI evaluation plan).	Jim Fish
6/21/2018	Update or Other Action	DEC copied on Contained-In request from consultant to EPA Region 10 RCRA Program	Jim Fish
6/22/2018	Update or Other Action	Received Revised Soil & Waste Management Plan for remedial system decommissioning, parking lot & building utility upgrades, and renovations for Starbucks	Jim Fish
7/11/2018	Update or Other Action	Revised copy of Contained-In request from consultant to EPA Region 10 RCRA Program received today.	Jim Fish
8/20/2019	Document, Report, or Work plan Review - other	Received BMES Annual Groundwater and 2018 Vapor Intrusion Report from consultant	Jim Fish
8/13/2020	Update or Other Action	Received a 2019 BMES Site Investigation Summary Report, as well as a 2019 BMES Annual Groundwater Monitoring Report from consultant.	Jim Fish
9/18/2020	Update or Other Action	Letter sent to property owner, asking for additional vapor intrusion sampling at the COSTCO Wholesale warehouse, as part of the pre-existing vapor intrusion monitoring effort associated with the Bentley Mall site.	Jim Fish
4/15/2021	Update or Other Action	2020 Bentley Mall Vapor Intrusion Assessment and Groundwater Monitoring Report Received today	Jim Fish
7/8/2021	Site Characterization Report Approved	Approved 2020 BMES Groundwater and VI sampling report and consultant recommendations of: Continued annual groundwater monitoring from the existing monitoring well network; Contaminant trend analysis for the monitoring well network to evaluate whether contaminants in the groundwater are increasing, decreasing, or stable; and Maintaining a residential vapor intrusion sampling on a three-year frequency until groundwater sample results or contaminant trends are shown to be decreasing and/or below DEC cleanup levels in the vicinity of the residences. DEC also asked that Commercial Vapor Intrusion sampling be maintained at the three-year frequency, and that COSTCO warehouse (sub-slab sampling) at 48 College Road be added to list of commercial buildings to be monitored. Further, DEC asked that chloroform continued to be reported for any groundwater of vapor intrusion sampling event.	Jim Fish
12/7/2021	Site Characterization Workplan Approved	Work plan approved for annual groundwater monitoring and sub-slab soil gas sampling at COSTCO warehouse from pre-existing sampling ports.	Jim Fish
12/10/2021	Offsite Soil or Groundwater Disposal Approved	Approved offsite disposal of groundwater sampling IDW to US Ecology.	Jim Fish
3/23/2022	Update or Other Action	Received 2021 Groundwater Monitoring and Vapor Intrusion Report from consultant	Jim Fish
5/23/2022	Site Characterization Report Approved	Sent comments to consultant and RP regarding 2021 VI sampling and annual groundwater monitoring. Suggested continued VI monitoring during next VI sampling event in 2023, recommend meeting to discuss radon monitoring, and asked for update groundwater plume map.	Jim Fish
8/24/2022	Update or Other Action	Approved offsite transport of IDW for groundwater monitoring well sampling	Jim Fish
11/10/2022	Document, Report, or Work plan Review - other	Received BMES 2022 Groundwater Monitoring Report from consultant	Jim Fish
12/7/2022	Document, Report, or Work plan Review - other	Reviewed and approved 2022 Groundwater monitoring report submitted during November 2022	Jim Fish
12/6/2023	Document, Report, or Work plan Review - other	Received/reviewed correspondences from consultant to residents for October 2023 soil gas and/or indoor air sampling results	Jim Fish
9/23/2024	Long Term Monitoring Workplan or Report Review	DEC approves the 2023 VI sampling and groundwater monitoring report and approves consultant's recommendation of reduced groundwater monitoring frequency from annual to once every three years, concurrent with the Vapor Intrusion sampling.	Jim Fish

Action Date

Action

Description

DEC Staff

4/8/2003

Update or Other Action

Letter sent to Bentley Mall Associates requesting site characterization of on-site soil contamination and site characterization of both on and off-site ground water contamination. Additional letter sent to VIP Cleaners requesting site investigation of its property. It is inconclusive at this time the release source for the PCE/TCE contamination.

Douglas Bauer

4/9/2003

Site Added to Database

PCE and TCE contaminated soil and groundwater.

Deborah Williams

4/9/2003

Site Ranked Using the AHRM

Preliminary ranking.

Deborah Williams

4/9/2003

Update or Other Action

Telephone conversation with Mr. Mike No, owner of VIP Cleaners notifying him of his letter.

Douglas Bauer

4/10/2003

Update or Other Action

Bentley Mall Associates & VIP letters faxed to William Earnhart with Triple Net Properties, prospective purchaser of Bentley Mall on 4/8/2003.

Douglas Bauer

12/5/2003

Meeting or Teleconference Held

Met with Mr. Dave Rawson, managing member of Bentley Mall LLC; Mr. Ed Willis, Bentley Mall manager; and Mr. Lyle Gresehover, local environmental consultant to discuss results of ground water, soil, and soil gas sampling and outline a course of action for 2004

Douglas Bauer

1/8/2004

Update or Other Action

Ledger Code entered in database under ADEC data

Douglas Bauer

1/9/2004

Meeting or Teleconference Held

Meeting with Mr. Lyle Gresehover of Alaska Resources & Environmental Services to discuss site characterization process: development of site conceptual model, data quality objective process, TRIAD approach, task schedules, and potential closure scenarios. Initial draft site characterization work plan scheduled for mid-February.

Douglas Bauer

2/27/2004

Meeting or Teleconference Held

Meeting with Mr. Lyle Gresehover of Alaska Resources & Environmental Services to review the interim-draft work plan for the 2004 field season. Final draft will be submitted soon.

Douglas Bauer

5/11/2004

Site Characterization Workplan Approved

Approved Site Characterization Work Plan dated April 2004. Plan uses major elements of EPA's TRIAD approach. Final report estimated to be completed by November 2004.

Douglas Bauer

7/28/2004

Update or Other Action

Letters were sent to Mr. Cliff Burglin with Bentley Family Trust, Mr. Thomas Alexander with Key Bank, and Mr. John Beers with River Mall Condominium Association requesting that they allow access to their respective properties to Alaska Resources & Environmental Services (ARES). ARES intends to install temporary ground water wells on the properties to delineate the PCE ground water plume that originates in the vicinity of the East Satellite Building.

Douglas Bauer

9/14/2004

Update or Other Action

Forwarded Bentley Family Trust access requirements for Fed Meyer East property to Alaska Resources & Environmental via email.

Douglas Bauer

12/8/2004

Update or Other Action

Lyle Gresehover with Alaska Resources and Environmental called to provide a status report. The installation and sampling of GeoProbe temporary wells is scheduled to start around December 15, 2004. The access issues have been resolved. The work plan is being amended to use a portable gas chromatograph instead of a colorimetric screening device. Preliminary on-site soil sampling results are being forwarded to ADEC.

Douglas Bauer

12/17/2004

Update or Other Action

Approved the use of portable gas chromatograph in place of Color-Tec field screening. GeoProbe ground water sampling scheduled to begin Dec. 20, 2004.

Douglas Bauer

12/23/2004

Meeting or Teleconference Held

Telephone call and on-site meeting with Lyle Gresehover at the East Satellite Building. The vertical sampling interval was discussed; initial sampling with be at 5 foot intervals with subsequent intervals based on an on-going assessment of all collected data. Intervals will expand or decrease as dictated by the analysis of the collected data.

Douglas Bauer

12/29/2004

Update or Other Action

Telephone call with Lyle Gresehover concerning sampling status and proposed sampling schedule.

Douglas Bauer

3/4/2005

Meeting or Teleconference Held

Met with Lyle Gresehover. Alaska Resources and Environment (AR&E) submitted a ground water investigation report for the Bentley Mall East Satellite building. The report summarized the results from the GeoProbe investigation that was conducted last winter. The PCE plume extends beyond Noyes Slough into the northern portion of the Charles Slater Subdivision. The PCE concentration close to the source area is 4600 µg/L, 280 µg/L at 21 below ground surface (bgs) next to Noyes Slough, and 71 µg/L at 35 bgs one block east of Monroe High School. AR&E will conduct a well search in the Slater Subdivision and test the indoor air quality at the East Satellite building, McDonald’s Restaurant, and the Well Fargo Bank which are close to the source area in the near future.

Douglas Bauer

3/7/2005

Meeting or Teleconference Held

Met with J. Frechione & L. Johnson to discuss project status.

Douglas Bauer

3/8/2005

Update or Other Action

Sent by email the latest ground water investigation report to Jim Desmond.

Douglas Bauer

3/30/2005

Meeting or Teleconference Held

Telephone conversation with Lyle Gresehover with Alaska Resources and Environment: preliminary indoor sampling results suggest that the EPA 10-05 risk screening level is exceeded at the East Satellite Building and Wells Fargo Bank. Lyle will furnish results after meeting with Bentley Mall owners. Permission to sample the indoor air at McDonalds has not been received after several inquiries. The local McDonalds is not a local franchise but controlled by the corporate headquarters. Lyle was advised that ADEC will assist in obtaining permission once the East Satellite Building and Wells Fargo results are received. It was agreed that as an interim measure existing HVAC systems should be evaluated and maintained at a positive pressure if possible.

Douglas Bauer

4/4/2005

Update or Other Action

Received by email latest indoor air sampling results. Tetrachloroethene (PCE) and trichloroethene (TCE) were detected in the indoor air at the Wells Fargo Bank and the East Satellite buildings on the Bentley Mall complex. Background levels (indoor and outdoor sources other than the vapor intrusion pathway) were not identified and measured. Therefore, the indoor air concentrations may reflect additional sources other than potential vapor intrusion. The range of PCE and TCE concentrations at the East Building were 33-35 µg/m³ and 0.58-6.8 µg/m³ respectively. At the Wells Fargo Building PCE and TCE concentrations ranged 170-200 µg/m³ and 1.5-1.6 µg/m³ respectively. For comparison, the target levels for the 10E-05 risk factor for PCE and TCE for residential buildings are 8.1 µg/m³ and 0.22 µg/m³ respectively. As an interim mitigation measure, the heating and ventilation systems at both buildings will be inspected and adjusted to maintain a positive pressure if possible. Alaska Resources and Environment (AR&E) has not obtained permission after several attempts to measure the indoor air at the McDonalds Restaurant west of the Wells Fargo Bank. Apparently the restaurant is no longer a local franchise and it is controlled by the corporate headquarters. The Department will assist AR&E in gaining access to the facility. Lindsay Smith was asked to calculate commercial building target levels using standard EPA commercial exposure frequency and exposure duration criteria. Due to her workload, Lindsay will not be able to provide the numbers until the end of April 2005.

Douglas Bauer

4/13/2005

Update or Other Action

An update of the CS web page site summary forwarded to Roblin Davis and Marti Early for posting on the web site.

Douglas Bauer

4/13/2005

Update or Other Action

Sent a certified letter to McDonalds Corporation Real Estate Practices requesting that McDonalds grant permission to Alaska Resources and Environment to conduct indoor air sampling.

Douglas Bauer

4/25/2005

Update or Other Action

Ms. Anne-Marie Wieland with McDonalds Corporation called. Ms. Wieland was referred to the site summary web-page for background information concerning the site investigation. An email was sent to Alaska Resources and Environmental requesting they contact Ms. Wieland directly.

Douglas Bauer

5/4/2005

Update or Other Action

Telephone conversation with Mr. Peters who lives on Ina Street. He wanted clarification on how the ground water contamination from the Bentley Mall may affect his drinking water ( he is on "city water"). Mr. Peters was informed that the Golden Heart Utilities water is ok since the Bentley Mall ground water contamination does not effect Golden Heart's well field.

Douglas Bauer

5/25/2005

Update or Other Action

State Attorney General's informal opinion sent to Alaska Resources and Environment concerning home owner consent for alternative cleanup levels that are determined by a risk assessment. Opinion states that home owner consent is required.

Douglas Bauer

5/31/2005

Update or Other Action

Received by email the indoor sampling results for the McDonald's restaurant from Alaska Resources and Environment. TCE results were 0.11, 0.13, & 0.10 micrograms per cubic meter. PCE results were 0.65, 1.3, & 0.33 micrograms per cubic meter. EPA target levels for 10E-05 risk levels for TCE and PCE are 0.22 and 8.1 micrograms per cubic meter respectively.

Douglas Bauer

6/2/2005

Update or Other Action

Telephone conversation with Lyle Gresehover with AR&E concerning residential well survey in Charles Slatter Subdivision. 65 surveys mailed; 24 responses; 6 wells identified, and only 2 wells in use as irrigation wells.

Douglas Bauer

7/13/2005

Update or Other Action

Telephone conversation with Lyle Gresehover with AR&E. Scheduled meeting on July 15 to discuss location of permanent ground water monitoring wells.

Douglas Bauer

7/15/2005

Meeting or Teleconference Held

Meeting with Lyle Gresehover with Alaska Resources and Environment. Discussed number and location of permanent monitoring wells. Lyle will send monitoring will installation plan for ADEC concurrence.

Douglas Bauer

9/27/2005

Update or Other Action

Telephone conversation with Lyle Greshover concerning placement of monitoring wells and potential public input on cleanup process.

Douglas Bauer

12/7/2005

Update or Other Action

Telephone call with Lyle Gresehover concerning information on ozone treatment.

Douglas Bauer

12/14/2005

Update or Other Action

Information was provided to Mel Langdon, ADEC Storm Water & Wetlands Nonpoint Source program, concerning the possible interception of the Bentley Trust Tax Lot 201 TCE ground water plume and the Bentley Mall East Satellite Building PCE ground water plume by Noyes Slough.

Douglas Bauer

12/29/2005

Update or Other Action

Telephone call with Lyle Gresehover. Confirmed that thermal treatment of PCE is no longer an option at OIT or at any thermal treatment system in Alaska based on ADEC management decision to limit thermal treatment to petroleum contaminated soil only.

Douglas Bauer

1/3/2006

Update or Other Action

Telephone conversation with Mr. David Delawder with Safco Capital Corporation in Los Angeles concerning status of site characterization report.

Douglas Bauer

1/20/2006

Update or Other Action

Received draft site characterization report and draft corrective action plan from Alaska Resources and Evironmental Services.

Douglas Bauer

1/24/2006

Update or Other Action

Sent copy of Site Characterization Report to Kent Patrick Reily with ADEC Water Quality program concerning PCE & TCE contaminatin in Noyes Slough.

Douglas Bauer

1/25/2006

Update or Other Action

Comments emailed to ARES on site characterization report and corrective action plan.

Douglas Bauer

1/26/2006

Update or Other Action

Telephone call with Lyle Gresehover with ARES about ADEC's site characterization and corrective action comments. Lyle is unsure of turn around time for land owner and insurance company approval.

Douglas Bauer

4/12/2006

Update or Other Action

Received final version of site characterization report.

Douglas Bauer

4/14/2006

Update or Other Action

Mailed a CD copy of the site characterization report to Martin Sheld with Wells Fargo Bank Alaska in Anchorage.

Douglas Bauer

4/26/2006

Update or Other Action

Telephone conversation with Lyle Gresehover. Lyle inquired about the approval data for the Site Characterization Report. I responded within two weeks with a target date of the week of May 1st.

Douglas Bauer

4/26/2006

Update or Other Action

Telephone conversation with Lyle Gresehover. Lyle inquired about the approval data for the Site Characterization Report. I responded within two weeks with a target date of the week of May 1st.

Douglas Bauer

5/2/2006

Site Characterization Report Approved

Issued approval letter to Mr. Dave Rawson, managing partner, for Bentley Mall and email to Lyle Gresehover.

Douglas Bauer

5/8/2006

Update or Other Action

Telephone call with Lyle Gresehover. Corrective action work plan will be submitted in approximately two weeks. Work plan will be generic in nature since specific components will selected in the interim. Specifications/user manuals for specific components will be added at a later date.

Douglas Bauer

6/12/2006

Update or Other Action

Approved transport of drill cuttings to OIT, Inc. for thermal remediation.

Douglas Bauer

6/12/2006

Update or Other Action

Telephone conversation with Lyle Gresehover. Corrective Action plan will be submitted soon. I informed Lyle that I will be on emergency family leave from 6/14 to 6/26 and could review the plan if it is sent to my email; I can acess email via the web.

Douglas Bauer

6/20/2006

Update or Other Action

Received Corrective Action Plan via email

Douglas Bauer

6/26/2006

Update or Other Action

Telephone conversation with Mr. Kevin Shields with McKinley Development. Updated Mr. Shields on site history and possible impacts to VIP Cleaners property.

Douglas Bauer

6/27/2006

Cleanup Plan Approved

Reviewed and approved Alaska Resources and Environmental Resources remedial action work plan tilted "Remedial Action Work Plan Bentley Mall Fairbanks, Alaska" dated June 2006.

Douglas Bauer

8/18/2006

Update or Other Action

Telephone conversation and email correspondence with David Delawder with Safdco Capital Company.

Douglas Bauer

9/7/2006

Meeting or Teleconference Held

Meeting with Lyle Gresehover and consultants to discuss potential closure process and schedule.

Douglas Bauer

11/7/2006

Update or Other Action

Respond to email inquiry from Russel Geyser, Gilbraltar Holdings, potential buyer.

Douglas Bauer

11/7/2006

Update or Other Action

Telephone call from Lyle Gresehover. Status report of SVE pilot study will be submitted to ADEC in about two weeks.

Douglas Bauer

11/15/2006

Update or Other Action

Telephone call from Mr. George Lyle with Guess Rudd in Anchorage representing Bentley Mall concerning development of a prospective purchase agreement.

Douglas Bauer

11/22/2006

Update or Other Action

Forwarded AG referral memorandum to J. Frechione for the development of a prospective purchase agreement.

Douglas Bauer

1/17/2007

Update or Other Action

Telephone call with Lynn Pearson with Charter Mac Mortage in California concerning approval of loan for Bemtley Mall. Ms. Pearson wants to know when ADEC will issue a NFA or conditional closure letter. Ms. Pearson had a copy of the startup report. I inform her that ADEC had not received the start up report but was expecting it. If the start up report demonstrated that the remediation was effective and a long-term ground water monitoring plan was approved then ADEC would issue a conditional closure.

Douglas Bauer

1/17/2007

Update or Other Action

Telephone calls from Donald Manning, Environmental Resource Group, and Lyle Gresehover, Alaska Resources and Environmental concerning submittal of start up. Donald will email report and FedEX a copy.

Douglas Bauer

1/22/2007

Meeting or Teleconference Held

Meeting with Lyle Gresehover to discuss start up report and elements of record of decision (conditional closure letter). Preliminary elements are vapor intrusion concentration less than 10E-5 risk level, vadose zone soils less than migration to ground water levels (soil data between vapor extraction wells in less permable soils), and ground water below maximum contaminant levels. Lyle will provide elements that he wants in closure letter via email.

Douglas Bauer

1/25/2007

Meeting or Teleconference Held

Met with Mr. Patrick Cox, Senior Vice President with Steadfast Commercial Properties, and Mr. Ed Willis, Manager of Bentley Mall to discuss status of remediation system and out line conditional closure process. Closure will be based on attainment of indoor air 10E-5 risk level for a commercial setting, migration to ground water soil concentrations, and drinking water standards for ground water for contaminants of concern. The start up for the remediation system strongly suggests that the system is operating as designed; future data will measure its efficiency.

Douglas Bauer

1/30/2007

Update or Other Action

Draft Record of Decision, Conditional Closure, forwarded to J. Frechione for review.

Douglas Bauer

1/31/2007

Update or Other Action

Draft Record of Decision, Conditional Closure, forwarded to Lyle Gresehover with Alaska Resources and Environment for distribution to interested parties and comment.

Douglas Bauer

1/31/2007

Update or Other Action

Draft Notice of Environmental Contamination forwarded to Lyle Gresehover with Alaska Resources and Environment for distribution to interested parties for comment.

Douglas Bauer

3/2/2007

Conditional Closure Approved

Conditional Closure approved by J. Frechione. See attachments

Douglas Bauer

3/2/2007

Institutional Control Record Established

Administrative update (10/25/07)

Evonne Reese

3/21/2007

Meeting or Teleconference Held

Met with Ed Willis with Bentley Mall and potential investors to discuss conditional closure requirements.

Douglas Bauer

3/30/2007

Update or Other Action

Telephone conversations with Ms. Sherry Agrend concerning Lot 13, 515 Noyes, in Charles Slatter Subdivision. It appears the property is located close to and outside of the PCE ground water plume's southern boundary. Due to the variablity in interpolating the boundaries the property may be within the 5 microgram per liter contour; even so, the property can be served by Golden Heart Utilities.

Douglas Bauer

9/17/2007

Update or Other Action

Changed PM from Doug Bauer to Ann Farris

Ann Farris

6/3/2008

Exposure Tracking Model Ranking

Initial ranking with ETM completed.

Ann Farris

7/23/2008

Update or Other Action

Staff received the 2007 Groundwater Monitoring Report and remediation status. The remediation system (AS/SVE) was installed in Sept 2006 and appears to be working. The concentrations in the source area are decreasing. Indoor air concentrations were measured in Wells Fargo and ESB building and were below commerical screening levels. HVAC systems operating during sampling. Asked consultant to identify houses within the plume area that have basements and this will be included in the 2008 report. The groundwater and indoor air sampling will continue. Some updates to the remediation system will continue and monitoring will continue. Appear to be in compliance with the ROD.

Ann Farris

7/10/2009

Update or Other Action

2008 Groundwater Monitoring and Indoor Air Quality Report was received. The results indicate improvement in the groundwater concentrations since the SVE system went online. The indoor air levels have not changed significantly, but remain below the commercial screening levels. Samples collected with HVAC operating. Houses with basements identified in the downgradient area that may be of concern for vapor intrusion. Correspondence made with contractor to discuss these results.

Ann Farris

7/24/2009

Update or Other Action

Staff contacted Wells Fargo regarding their plans for expansion at the Bentley Mall. Sandy Hoglund is primary contact. The plans are on hold until at least 2010 due to economic shift. They did collect soil samples from 3 locations that indicated PCE and TCE above cleanup levels from 2.5 to 14 ft. Staff contacted consultants to set up meeting to discuss these results.

Ann Farris

9/16/2009

Meeting or Teleconference Held

Staff met with Ben Wells from ERG and Mike Hodges with CEECON regarding the site status and plans for upcoming year. Current landowner is Krauss Property Management (907) 456-3900. Ed Willis is still property manager, but working now for Krauss. Rawson has remained liable for the subsurface contamination. Wells Fargo and others are leasing the space. The SVE systems has been modified to include two new wells and tie in an existing vapor monitoring well. Treatment will be focused on the remaining hot spots along college road and the land between the SVE connex and Wells Fargo. Soil samples were collected by CEECON in this area and results will be presented in a report on the remediation system, expected by November. ERG plans to submit letter with this report with recommendations for system exit strategy and long-term monitoring strategy. Discussed need to address VI pathway in residential area. DEC will write letter with the specific regulatory requirements and ERG will respond with work plan to address pathway.

Ann Farris

12/23/2009

Update or Other Action

Remediation Status Report received. Pending review.

Ann Farris

10/7/2010

Meeting or Teleconference Held

IN september, the consultant, ERG, Inc., contacted me regarding their plans to try to shut down the SVE system and address our concerns about the vapor intrusion pathway in the residential neighborhood downgradiet. They since submitted a work plan to collect soil gas along the source area sewer line and Noyes Street (downgradient). The work plan was not satisfactory. The figures describing the sample locations were not legible, but the consultant was in the field doing the work already so they choose to proceed anyway. We discuss the approach they were taking and it appeared to be on the right track, however, I told them I could not guarantee we would accept the data. They expect results back in November and will submit a report.

Ann Farris

8/31/2011

Long Term Monitoring Established

Env. Resource Group (ERG) requested to turn off and remove the soil vapor extraction system. The site has not yet achieved cleanup levels, but the data indicate the system has removed a significant amount of the contamination and reached diminishing returns. ERG recommended monitored natural attenuation as the alternate cleanup plan to achieve final cleanup levels. Their proposed monitoring schedule is: • September 2011 • March/April and Sept/October 2012 and • March/April and Sept/October 2013 After these semi-annual events, ERG would like to move to a single annual event and ultimately even less frequent. Staff approved these changes based on review of the remediation system report, groundwater report, and passivee soil gas and indoor air survey reports received in 2011. An approval letter was sent today.

Ann Farris

5/3/2012

Update or Other Action

Contained-in Determination for EPA Region 10 RCRA Program for soils generated in connection with modification of the soil vapor extraction system at the Bentley Mall East Satellite Building cleanup. 15 cubic yards of soil were found to no longer contain hazardous waste and were approved for thermal remediation.

Jim Fish

5/23/2012

Update or Other Action

Staff changed from Ann Farris to IC Unit.

Evonne Reese

6/29/2012

Update or Other Action

Project manager changed to Jim Fish.

Janice Wiegers

2/22/2013

Site Characterization Workplan Approved

Approved the indoor air-sampling at the proposed locations, collected over an 8-hour time frame (representing a time of anticipated occupancy), without an outdoor air sample, and under standard HVAC operating conditions, and without HVAC operation.

Jim Fish

2/27/2013

Meeting or Teleconference Held

Met with ERG consultant that conducted groundwater monitoring and VI assessments. Learned the east satellite building may be re-leased. Recommended indoor air sampling and additional site characterization to better understand recent increases in PCE concentrations in MW-1 (fall 2012).

Jim Fish

2/28/2013

Potentially Responsible Party/State Interest Letter

DEC sent PRP letters to owners/operators of the VIP Cleaners which is located upgradient from the East Satillite Building. The letter indicated PCE concentrations have increased in MW-1 and requested investigation at VIP Cleaners to determine if new releases have occured.

Janice Wiegers

3/4/2013

Update or Other Action

Response to Annual Groundwater Monitoring and Indoor Air Sampling Report for 2011 (dated January 23, 2012), the First Semi-annual Groundwater Monitoring Report for 2012 (dated August 30, 2012) sent to RP. Addtional soil and/or groundwater sampling from MW-1 vicinity requested; also recommended CSIA for PCE source discrimination. Additional evaluation of Monitored natural Attenuation also requested. DEC's Vapor Intrusion Guidance for Contaminated Sites also sent to RP and consultant; request building survey be completed.

Jim Fish

4/18/2013

Update or Other Action

DEC staff met with VIP Cleaners regarding increasing concentrations observed in the monitoring well located between the former Bentley Mall Cleaners and the VIP cleaners.

Janice Wiegers

4/22/2013

Site Reopened

Site reopened as contaminated site based on new information of increasing concentrations of PCE and TCE in groundwater (monitoring wells MW-1 and MW-5), requirement for further evaluation of vapor intrusion risks associated with groundwater plume (particularly along Noyes Street), EPA's recent IRIS toxicological review of acute exposure risk associated with TCE and uncertainty of TCE expsoure risks at this site, and requirement for further evaluation of monitored natural attenuation of the groundwater plume.

Jim Fish

5/31/2013

Update or Other Action

Response to DEC's review of recent groundwater monitoring and indoor air sampling reports and recommendations for further investigation and monitoring improvements received. Consultant will evaluate or implement DEC's suggestions; work plan pending.

Jim Fish

3/6/2014

Document, Report, or Work plan Review - other

Groundwater Monitoring report receieved; inlcuded CSIA data from two monitoring and 1 former sparge well - CSIA data indicates the isotopic composition of PCE in MW-1 is different from PCE in downgradient wells.

Jim Fish

4/3/2014

Potentially Responsible Party/State Interest Letter

Second letter sent to VIP cleaners sharing data showing isotopic composition of PCE in MW-1, and asking VI Pto obtain the services of an environmental consultant.

Jim Fish

7/10/2014

Update or Other Action

Recieved proposed groundwater quality monitoring plan and reporting of mitigation measures to reduce risk to indoor air for East Satellite Bldg, Wells Fargo Bldg, and new building to be constructed (location of former McDonald's).

Jim Fish

9/5/2014

Update or Other Action

File review by consultant; discussion of using FAIR Project moniotring well (MW-6)

Jim Fish

9/10/2014

Site Visit

Site visit to view application of RetroCoat (Land Sciences™ Vapor Intrusion barrier) primer on East Satellite building floor.

Jim Fish

9/16/2014

Update or Other Action

Met with consultant for file review of contaminated sites near Bentley Mall area.

Jim Fish

9/17/2014

Update or Other Action

Progess report form consultant on GeoSeal installation at new AutoZone building construction. Vapor extraction well VE-7 (from previous remedial system) was pulled and decommissioned (grouted), and buried conveyance piping capped.

Jim Fish

9/18/2014

Site Visit

Brief site visit to view construction progess of new AutoZone building.

Jim Fish

6/23/2015

Update or Other Action

Received Soil gas collection work plan from consultant

Jim Fish

10/22/2015

Update or Other Action

received results of shallow soil gas sampling in ROW in Charles Slater subdivision/neighborhood; elevated concentrations of PCE/TCE/trans-DCE indicate potential for vapor intrusion in nearby buildings. Additional investigation pending.

Jim Fish

10/28/2015

Update or Other Action

Received results of indoor and outdoor air sampling at day care facility; detections indicate a need to resample to determine levels under "worse case" scenario for vapor intrusion and to determine extent of variability

Jim Fish

11/3/2015

Meeting or Teleconference Held

Teleconference with consultant and legal representation to discuss steps forward for additional vapor intrusion assessment and interpretation of indoor air sampling results.

Jim Fish

11/3/2015

Site Visit

Site visit to Day Care facility where indoor air samples were collected to discuss contamination investigation, exposure risks, and pending investigations and requirement for access.

Jim Fish

11/13/2015

Update or Other Action

Letter outlining priorities and requests for additional vapor intrusion evaluation at residential buildings (including Day Care) and school sent to RP today.

Jim Fish

11/24/2015

Meeting or Teleconference Held

Met with principal of nearby high school to discuss contamination issues and vapor intrusion investigations. Consultant also met with principal to determine potential sampling locations.

Jim Fish

12/10/2015

Update or Other Action

Received 2015 Groundwater Monitoring report, Soil Gas Investigation Report, and Indoor Air Sampling Report from consultant (previous attempts to send via email failed because files were too large).. Also contacted day care owner for consent for additional indoor air sampling.

Jim Fish

12/11/2015

Update or Other Action

Discussed passive sampling rationale with consultant; work plan pending.

Jim Fish

12/17/2015

Site Characterization Workplan Approved

Approved indoor air sampling work plan with conditions/comments from DEC. Asked for building survey to be completed and meteorological variable to be recorded during sampling.

Jim Fish

12/30/2015

Update or Other Action

Received final sampling work plan incorporating DEC comments. Sampling planned for early January; building survey to be completed.

Jim Fish

3/15/2016

Update or Other Action

Received work plan for additional soil gas investigation near residential homes and school

Jim Fish

3/21/2016

Site Characterization Workplan Approved

Work plan for (deep) soil gas investigation on residential and school private property approved.

Jim Fish

3/24/2016

Site Visit

Site visit to view soil gas probe installation and decide on sampling locations with consultant with well driller.

Jim Fish

3/25/2016

Site Visit

Site visit to view soil gas sampling

Jim Fish

3/29/2016

Update or Other Action

Received call from property owner concerning access and information on the site; will send results when available.

Jim Fish

4/11/2016

Meeting or Teleconference Held

Teleconference with RP and consultant held to discuss schedule for recent soil gas sampling results review and outreach to sampled property owners.

Jim Fish

4/18/2016

Update or Other Action

Received letter report and analytical results of January 2016 Indoor & Outdoor Air sampling at day care facility in down-gradient portion of the plume. All dry cleaning-related chemicals were non-detect for the areas sampled, by either active (Summa canister) or passive (SKC badges) methods.

Jim Fish

5/3/2016

Meeting or Teleconference Held

Meeting with RP and attorney to discuss next steps for soil gas and vapor intrusion evaluation and outreach to sampled residences.

Jim Fish

10/21/2016

Update or Other Action

Received work plan for groundwater, soil gas, and indoor air sampling.

Jim Fish

11/18/2016

Site Characterization Workplan Approved

Work plan for soil gas and residential and commercial indoor air sampling, and groundwater monitoring well sampling, approved (conditionally approved where additional locations may require indoor air sampling and evaluation of the vapor intrusion pathway)

Jim Fish

4/10/2017

Update or Other Action

Received Draft 2017 BMES Assessment report from consultant

Jim Fish

5/3/2017

Document, Report, or Work plan Review - other

Comment sent to consultant for 2017 Draft assessment report. Generally, soil gas results were orders of magnitude lower than those obtained in 2015-16. DEC asked for additional VI evaluation in autumn of 2017.

Jim Fish

9/18/2017

Update or Other Action

Work plan for 2017 vapor intrusion evaluation efforts received today.

Jim Fish

10/3/2017

Site Characterization Workplan Approved

2017 Work Plan for soil gas, indoor air, and groundwater sampling approved.

Jim Fish

10/25/2017

Meeting or Teleconference Held

Discussed sampling with property owner

Jim Fish

6/8/2018

Update or Other Action

Received soil management plan for F-002 listed debris and soils associated with further remedial system decommissioning, parking lot & building utility upgrades, and renovations for Starbucks.

Jim Fish

6/18/2018

Update or Other Action

ADEC approved the SVE piping decommissioning as follows: ADEC understands that vertical SVE piping components will be pulled from the ground on June 19-20, 2018, and instead of being stored and sampled as proposed in the June 8, 2018 Contaminated Soil and Waste Management Plan BMES Starbucks Upgrades, the piping will be immediately brushed of soil after being pulled from the subsurface, and then cleaned and rinsed with an Alconox solution. The solutions (cleaning and rinsing) will be captured and retained for F-002 hazardous waste disposal via the services of NRC Alaska, while the decontaminated SVE PVC piping will be disposed of as solid waste, no longer containing hazardous waste. ADEC understand this to be consistent with 40 CFR 265.45 Treatment Standards for Hazardous Debris.

Jim Fish

6/20/2018

Meeting or Teleconference Held

Teleconference with consultant an EPA Region 10 RCRA Program to discuss management, storage and disposal of debris and soils associated with the site. Pending Contained-In request to be drafted by consultant to RCRA Program.

Jim Fish

6/20/2018

Update or Other Action

Current modifications to the June 2018 Contaminated Soil And Waste Management Plan, BMES Starbucks Upgrades, Fairbanks, AK, include: 1)Vertical SVE/Air Sparge well casing are being – or have been - pulled, decontaminated and disposed as approved in ADEC’s June 18th email 2)Some wells required over-drilling and resulted in excess soils that will be disposed of as F-002 listed Hazardous Waste 3)For metal piping removed from the subsurface, ADEC request that this same approach (as outline in ADEC’s June 18th email) also be followed 4)A Contained-In Request letter will be drafted by S&W and co-signed by the property owner and sent to EPA Region 10 RCRA Program to propose contaminant levels soils and debris no longer contain Hazardous Waste 5)In lieu of having the Contained-In Determination, work may progress, but RCRA Generator rules and Accumulation Standards (40 CFR part 262) will apply, until a Contained-In Determination is received 6)You anticipate ~10 cu yds. soil and ~200 sq. ft. of concrete materials to be stored (temporarily), sampled, and disposed 7)The approach for soils is to utilize Super-sacs for soil storage until sampling and disposal can be implemented (a connex or enclosure may be used to store the super-sacs); each Super-sac will be sampled 8)Roll-off boxes or similar container may be used for concrete storage until sampling and disposal can be implemented 9)The Staging Area for storing media has changed to be the portion of parking lot just of the East Satellite Building 10)Screening will not be used to determine if materials do not contain hazardous waste – confirmation sampling and laboratory analysis should be used for that determination 11)After the Retro Coat material is re-applied to the interior to the East Satellite Building, follow-up verification of its effectiveness via indoor air sampling will be conducted (this may be captured under the current groundwater monitoring and VI evaluation plan).

Jim Fish

6/21/2018

Update or Other Action

DEC copied on Contained-In request from consultant to EPA Region 10 RCRA Program

Jim Fish

6/22/2018

Update or Other Action

Received Revised Soil & Waste Management Plan for remedial system decommissioning, parking lot & building utility upgrades, and renovations for Starbucks

Jim Fish

7/11/2018

Update or Other Action

Revised copy of Contained-In request from consultant to EPA Region 10 RCRA Program received today.

Jim Fish

8/20/2019

Document, Report, or Work plan Review - other

Received BMES Annual Groundwater and 2018 Vapor Intrusion Report from consultant

Jim Fish

8/13/2020

Update or Other Action

Received a 2019 BMES Site Investigation Summary Report, as well as a 2019 BMES Annual Groundwater Monitoring Report from consultant.

Jim Fish

9/18/2020

Update or Other Action

Letter sent to property owner, asking for additional vapor intrusion sampling at the COSTCO Wholesale warehouse, as part of the pre-existing vapor intrusion monitoring effort associated with the Bentley Mall site.

Jim Fish

4/15/2021

Update or Other Action

2020 Bentley Mall Vapor Intrusion Assessment and Groundwater Monitoring Report Received today

Jim Fish

7/8/2021

Site Characterization Report Approved

Approved 2020 BMES Groundwater and VI sampling report and consultant recommendations of: Continued annual groundwater monitoring from the existing monitoring well network; Contaminant trend analysis for the monitoring well network to evaluate whether contaminants in the groundwater are increasing, decreasing, or stable; and Maintaining a residential vapor intrusion sampling on a three-year frequency until groundwater sample results or contaminant trends are shown to be decreasing and/or below DEC cleanup levels in the vicinity of the residences. DEC also asked that Commercial Vapor Intrusion sampling be maintained at the three-year frequency, and that COSTCO warehouse (sub-slab sampling) at 48 College Road be added to list of commercial buildings to be monitored. Further, DEC asked that chloroform continued to be reported for any groundwater of vapor intrusion sampling event.

Jim Fish

12/7/2021

Site Characterization Workplan Approved

Work plan approved for annual groundwater monitoring and sub-slab soil gas sampling at COSTCO warehouse from pre-existing sampling ports.

Jim Fish

12/10/2021

Offsite Soil or Groundwater Disposal Approved

Approved offsite disposal of groundwater sampling IDW to US Ecology.

Jim Fish

3/23/2022

Update or Other Action

Received 2021 Groundwater Monitoring and Vapor Intrusion Report from consultant

Jim Fish

5/23/2022

Site Characterization Report Approved

Sent comments to consultant and RP regarding 2021 VI sampling and annual groundwater monitoring. Suggested continued VI monitoring during next VI sampling event in 2023, recommend meeting to discuss radon monitoring, and asked for update groundwater plume map.

Jim Fish

8/24/2022

Update or Other Action

Approved offsite transport of IDW for groundwater monitoring well sampling

Jim Fish

11/10/2022

Document, Report, or Work plan Review - other

Received BMES 2022 Groundwater Monitoring Report from consultant

Jim Fish

12/7/2022

Document, Report, or Work plan Review - other

Reviewed and approved 2022 Groundwater monitoring report submitted during November 2022

Jim Fish

12/6/2023

Document, Report, or Work plan Review - other

Received/reviewed correspondences from consultant to residents for October 2023 soil gas and/or indoor air sampling results

Jim Fish

9/23/2024

Long Term Monitoring Workplan or Report Review

DEC approves the 2023 VI sampling and groundwater monitoring report and approves consultant's recommendation of reduced groundwater monitoring frequency from annual to once every three years, concurrent with the Vapor Intrusion sampling.

Jim Fish

Contaminant Information

Name	Level Description	Media	Comments
Tetrachloroethene	> Table C	Groundwater

Name

Level Description

Media

Comments

Tetrachloroethene

> Table C

Groundwater

Control Type

Type	Details
Notice of Environmental Contamination	Filed in 2008
Signed CS Determination	Record of decision in place, March 1, 2007. Modified in August 2011 to shut down the soil vapor extraction system, but monitored natural attenuation continuing. Concentrations in soil and groudwater still exceed cleanup levels.

Type

Details

Notice of Environmental Contamination

Filed in 2008

Signed CS Determination

Record of decision in place, March 1, 2007. Modified in August 2011 to shut down the soil vapor extraction system, but monitored natural attenuation continuing. Concentrations in soil and groudwater still exceed cleanup levels.

Requirements

Description	Details
Groundwater Monitoring	semi-annual until end of 2013 at least. Annual report should be received in December or January of each year.
Groundwater Use Restrictions
Excavation / Soil Movement Restrictions
Air Quality Monitoring	annually in buildings on site. vapor intrusion issues were never really substantial because of the building types, but should be considered if there is any construction or new land use.

Description

Details

Groundwater Monitoring

semi-annual until end of 2013 at least. Annual report should be received in December or January of each year.

Groundwater Use Restrictions

Excavation / Soil Movement Restrictions

Air Quality Monitoring

annually in buildings on site. vapor intrusion issues were never really substantial because of the building types, but should be considered if there is any construction or new land use.

2022 BMES Groundwater Monitoring Report

2021 BMES Groundwater Monitoring and Vapor Intrusion Report

2020 BMES Vapor Intrusion and Groundwater Assessment Report

2019 BMES Site Investigation Summary Report

2019 BMES Annual Groundwater Monitoring Report

2018 BMES Annual Groundwater and Vapor Intrusion Evaluation Report

2018 Bentley Mall East Satellite Annual Groundwater and 3-Year Vapor intrusion Evaluation Work Plan

2017 Bentley Mall East Satellite Soil Gas and Groundwater Assessment Report

2016 ERG Bentley Mall Soil Vapor Investigation Report, Charles Slater Subdivision

2016 S&W Bentley Mall East Satellite Assessment Report

2016 ERG Bentley Mall Offsite Groundwater Investigation Report

2015 Bentley Mall Indoor Air Data Review Report (Ina St.)

2015 Bentley Mall Groundwater Monitoring Report

2015 Bentley Mall Soil Gas Investigation Report

2014 Pictures of RetroCoat applied in East Satellite Building

2014 Bentley Mall ERG Letter to DEC

2014 Bentley Mall Groundwater Monitoring Report

2012 Bentley Mall Second Semiannual Groundwater Monitoring Report

2012 Bentley Mall First Semiannual Groundwater Monitoring Report

2011 Bentley Mall Remediation Equipment Operation Completion Report

2011 Bentley Mall Passive Soil Gas and Indoor Air Survey Report

2011 Bentley Mall Annual Groundwater Monitoring and Indoor Air Sampling Report

2010 Bentley Mall Sept-Dec Groundwater Monitoring Report

2008 Bentley Mall Remediation System Performance Evaluation Report

2013 Bentley Mall East Satellite Indoor Air Sampling Letter Report

2010 Bentley Mall Remediation Progress Report

2009 Wells Fargo Geotechnical and Environmental Sampling Report

2008 Bentley mall Groundwater and Indoor Air Report

2008 Bentley Mall Indoor Air Monitoring Report

2007 Bentley Mall Annual Groundwater Report

2006 Remediation Work Plan Bentley Mall

2006 Bentley mall Corrective Action Plan

2006 Bentley Mall Site Characterization Report

2005 Map of PCE Distribution in groundwater

2004 Bentley Mall Soil Sample Results Summary

2003 Phase II ESA Addendum

2003 Phase II ESA Bentley Mall property

1999 Phase I ESA

2021 Vapor Intrusion and Groundwater Monitoring Report

2023 Vapor Intrusion and Groundwater Monitoring Report

2019 Site Investigation Report, Bentley Mall VIP Cleaners

2013 Groundwater Monitoring Report

2013 Site re-opening Letter

2011 Approval for alternate cleanup plan

2007 Conditional Closure Record of Decision

Hazard ID	Site Name	File Number
25667	Safeway #3410 Fuel Station	102.38.163
27833	ADOT&PF College Road Right of Way Areawide	100.38.305

Missing Location Data

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Site Report: Bentley Mall East Satellite

Site Chronology

IC / Closure Details

Documents

Associated Sites

Problems/Comments

Action Information

Contaminant Information

Control Type

Requirements

2022 BMES Groundwater Monitoring Report

2021 BMES Groundwater Monitoring and Vapor Intrusion Report

2020 BMES Vapor Intrusion and Groundwater Assessment Report

2019 BMES Site Investigation Summary Report

2019 BMES Annual Groundwater Monitoring Report

2018 BMES Annual Groundwater and Vapor Intrusion Evaluation Report

2018 Bentley Mall East Satellite Annual Groundwater and 3-Year Vapor intrusion Evaluation Work Plan

2017 Bentley Mall East Satellite Soil Gas and Groundwater Assessment Report

2016 ERG Bentley Mall Soil Vapor Investigation Report, Charles Slater Subdivision

2016 S&W Bentley Mall East Satellite Assessment Report

2016 ERG Bentley Mall Offsite Groundwater Investigation Report

2015 Bentley Mall Indoor Air Data Review Report (Ina St.)

2015 Bentley Mall Groundwater Monitoring Report

2015 Bentley Mall Soil Gas Investigation Report

2014 Pictures of RetroCoat applied in East Satellite Building

2014 Bentley Mall ERG Letter to DEC

2014 Bentley Mall Groundwater Monitoring Report

2012 Bentley Mall Second Semiannual Groundwater Monitoring Report

2012 Bentley Mall First Semiannual Groundwater Monitoring Report

2011 Bentley Mall Remediation Equipment Operation Completion Report

2011 Bentley Mall Passive Soil Gas and Indoor Air Survey Report

2011 Bentley Mall Annual Groundwater Monitoring and Indoor Air Sampling Report

2010 Bentley Mall Sept-Dec Groundwater Monitoring Report

2008 Bentley Mall Remediation System Performance Evaluation Report

2013 Bentley Mall East Satellite Indoor Air Sampling Letter Report

2010 Bentley Mall Remediation Progress Report

2009 Wells Fargo Geotechnical and Environmental Sampling Report

2008 Bentley mall Groundwater and Indoor Air Report

2008 Bentley Mall Indoor Air Monitoring Report

2007 Bentley Mall Annual Groundwater Report

2006 Remediation Work Plan Bentley Mall

2006 Bentley mall Corrective Action Plan

2006 Bentley Mall Site Characterization Report

2005 Map of PCE Distribution in groundwater

2004 Bentley Mall Soil Sample Results Summary

2003 Phase II ESA Addendum

2003 Phase II ESA Bentley Mall property

1999 Phase I ESA

2021 Vapor Intrusion and Groundwater Monitoring Report

2023 Vapor Intrusion and Groundwater Monitoring Report

2019 Site Investigation Report, Bentley Mall VIP Cleaners

2013 Groundwater Monitoring Report

2013 Site re-opening Letter

2011 Approval for alternate cleanup plan

2007 Conditional Closure Record of Decision

Missing Location Data

State of Alaska Department of Environmental Conservation