Division of Spill Prevention and Response

Breadcrumbs

Site Report: Sand Lake Car Wash & Gas Station


Site Name: Sand Lake Car Wash & Gas Station
Address: 7211 Jewel Lake Rd, Anchorage, AK 99502
File Number: 2100.26.223
Hazard ID: 23859
Status: Active
Staff: Robert Weimer, 9072697525 Robert.Weimer@alaska.gov
Latitude: 61.155400
Longitude: -149.951200
Horizontal Datum:NAD83


We make every effort to ensure the data presented here is accurate based on the best available information currently on file with DEC. It is therefore subject to change as new information becomes available. We recommend contacting the assigned project staff prior to making decisions based on this information.


Problems/Comments

In 1990 several tanks failed tank tightness testing. The tanks were removed and replaced. Gasoline and diesel fuel contamination (BTEX, GRO, DRO) was found in the soil and the shallow groundwater at the site that appear to extend to the 7221 Jewel Lake property to the south. An additional spill of 90 gallons of gasoline occurred at the site on March 22, 1992. During the removal of a used oil tank in 1997 contamination was found associated with that tank. In 2003 a soil vapor extraction and air sparging remediation system was installed and operated periodically. The remediation system was repaired on August 2005 but was not restarted until June 2008 because of problems with water intrusion into the vapor extraction lines. A french drain system was installed in 2007 to lower the groundwater in the area of the remediation system. Groundwater is pumped from the french drain system and discharged into the sanitary sewer or into a lined evaporation cell located on the adjacent property at 7221 Jewel Lake Road. 110 cubic yards of contaminated soil that was generated during the excavation in 2007 for the installation of the french drain system was placed in a lined covered bioremediation cell located on the adjacent property at 7221 Jewel Lake Road. In 2014 BTEX, GRO, DRO, RRO, and 1,2-Dichloroethane soil and groundwater contamination was documented on the adjacent property to the south at 7221 Jewel Lake Road (that property was acquired by First National Bank of Alaska in late 2013). The soil vapor extraction system was operated in the past year round, with warm air injection during the winter season, but the remediation system is not currently operating. Groundwater monitoring needs to continue at this site.



Action Information

Action Date Action Description DEC Staff
5/4/1990 Site Visit ADEC staff noted visual/olfactory evidence of petroleum contaminated soil during site visit. * Not Assigned
5/4/1990 Site Added to Database * Not Assigned
5/4/1990 Leaking Underground Storage Tank Release Confirmed - Petroleum LUST Site created in CSP for source area ID 78431 Gasoline contamination * Not Assigned
5/5/1990 Leaking Underground Storage Tank Cleanup Initiated - Petroleum LCAU Date changed DB conversion * Not Assigned
5/23/1990 Update or Other Action Regular gasoline tank passed tightness test, but the other tanks didn't. Request that those tanks be taken out of service until fixed and tightness test results show it leak free. Also need site assessment work for extent of contamination, drinking water well survey, and to properly store any excavated contaminated soils. * Not Assigned
6/8/1990 Report or Workplan Review - Other Environmental Services submitted drinking water well survey of wells within 1/4 mile radius of site. * Not Assigned
7/3/1990 Update or Other Action ADEC request for current status of the 7 shallow drinking water wells identified in water well survey conducted by Environmental Services Ltd. Also need to obtain drinking water samples from each of the 7 wells still actively used in accordance with EPA method 503.1 * Not Assigned
9/7/1990 Report or Workplan Review - Other Received water sample results from the 3629 West 74th and the 3525 West 73rd Avenue drinking water wells. Non detectable levels of all parameters analyzed for (503.1). * Not Assigned
2/28/1992 Update or Other Action ADEC requests that RP submit plans to conduct a release investigation and clean up. If still not financially able, he should apply for financial assistance or it may become a state lead. * Not Assigned
3/22/1992 Update or Other Action A spill of 90 gallons of gasoline was reported. The spill was caused by a vehicle running into the southwest fuel island. A simular spill occured in 1976 that resulted in a spill of 50 to 100 gallons on to the unpaved ground surface at the southeast fuel island. Robert Weimer
9/28/1995 Site Visit Site visit. Site referred to drinking water group for water quality violations. * Not Assigned
11/27/1995 Leaking Underground Storage Tank Corrective Action Underway ADEC reviewed LUST corrective action plan and denied Emergency Grant request. * Not Assigned
8/22/1997 Site Characterization Report Approved On May 30, 1997 a 1,000 gallon used oil tank and associated piping were removed. Up to 270 mg/kg GRO, 7,360 mg/kg DRO, 1,230 mg/kg RRO, metals at naturally occuring background levels, and non-detect PCBs and HVOs. 5 cubic yards of contaminated soil was excavated during the removal. Groundwater was encountered at 4 feet below ground surface. Robert Weimer
11/20/1997 Update or Other Action ADEC sends Notification of Intent to Cost Recover Letter to Current Owner: WILLIAM T. HEISLER CORP. * Not Assigned
10/31/1999 Report or Workplan Review - Other On September 7, 1999 one additional monitoring well (G4) was installed on the adjacent property to the south at 7221 Jewel Lake Road. Soil samples were collected at 24 and 26 feet below ground surface (bgs). Groundwater was encountered at 23.81 feet bgs. Up to 0.479 mg/kg benzene in the soil sample collected at 24 feet bgs. The groundwater sample from monitoring well G4 had 0.201 mg/l benzene, 1.1 mg/l GRO, and 0.491 mg/l DRO. Robert Weimer
6/30/2000 Release Investigation ADEC approved release investigation work plan. * Not Assigned
1/4/2001 Underground Storage Tank Site Characterization or Assessment Between August 30th and September 1, 1995 a 10,000 gallon unleaded gasoline, a 5,000 leaded gasoline, and a 2,000 gallon diesel underground storage tanks, their associated piping, and nine dispensers were removed. Groundwater was encountered at 5.5 feet below ground surface (bgs) at the gasoline tanks and 2-3.5 feet bgs at the diesel tank excavation. 224 cubic yards (cy) of gasoline contaminated soil and 80 cy of diesel contaminated soil were excavated during the removals. Up to 8,700 mg/kg GRO, 274 mg/kg DRO, and 400 mg/kg benzene remainings in the excavations. Contamination was document at the tanks, piping, and dispensers. Lynne Bush
4/2/2001 Update or Other Action Discussed monitoring well locations with RP's consultant; approved moving the one in Caravelle to a location away from overhead lines. Lynne Bush
6/4/2001 Report or Workplan Review - Other On April 2001 five additional monitoring wells (G5, G6, G7, G8, G9, and G10) were installed and soil and groundwater samples were collected. Benzene soil contamination over cleanup levels (up to 0.0828 mg/kg) was identified on the property to the south at 7221 Jewel Lake Road. Groundwater contamination up to 19.7 mg/l benzene, 165 mg/l GRO, 35.6 mg/l DRO, 4.5 mg/l RRO, 175 ug/l chromium, and 33.3 ug/l lead in the 10 monitoring wells sampled. Groundwater contamination (0.561 mg/l benzene and 2.85 mg/l GRO) over cleanup levels was identified on the property to the south at 7221 Jewel Lake Road. Depth to groundwater ranged from 3.92 to 30.22 feet below ground surface. Groundwater flow direction was to the south. Robert Weimer
5/4/2004 Update or Other Action Approved the March 15, 2004 corrective action work plan submitted to the Department by MWH for additional site work at the Sand Lake Services site. Scott Pexton
6/1/2004 Report or Workplan Review - Other May 2004 site monitoring event. Concentrations remain above cleanup levels. RP needs to continue ground water monitoring and remediation system operation. David Allen
8/13/2004 Update or Other Action File number updated from L55.68 to 2100.26.223 Aggie Blandford
8/23/2004 Update or Other Action Letter sent to Ms. Georgie Heisler (RP) requesting she submit her intentions regarding continued operation of remediation system and additional groundwater monitoring plans. Site transferred from Pexton to Dave Allen. Scott Pexton
9/15/2004 Report or Workplan Review - Other Reviewed and approved work plan dated September 13, 2004. Plan includes sampling groundwater wells (5 annually + 1 quarterly (G-3)) and quarterly vapor samples for laboratory analysis. ADEC will review effectiveness of system upon reporting of 4th quarter 2005 results. David Allen
10/15/2004 Update or Other Action ADEC letter requests that the groundwater monitoring plan to include GW 2. GW 2 showed highest levels of BTEX in the May 2004 sampling event. David Allen
11/10/2004 Update or Other Action November 10, 2004 drinking water sampling of the on-site community water well was non-detect for VOCs. DEC drinking water program requires that this drinking water well to be sampled for VOC's every 3 years. Robert Weimer
2/4/2005 Report or Workplan Review - Other October 7, 2004 site monitoring event. Up to 61.3 ug/l benzene in the ground water in the one monitoring well sampled (G-3). Contamination concentrations in that monitoring well have decreased from the previous monitoring event. The remediation system was found to be not operating on 10/7/04. The system was repaired and restarted on 10/8/04. The air sparging portion of the system was shut down on 10/14/04 until the ground is adequately frozen to seal the surface. RP needs to continue to operate the site remediation system and monitor the groundwater at the site. Robert Weimer
6/22/2005 Report or Workplan Review - Other March 29, 2005 site monitoring event. Up to .52 mg/l benzene in the ground water in the one monitoring well sampled (G-3). Contamination concentrations in that monitoring well have increased. The remediation system was found to be not operating on March 28, 2005. The system was frozen. The system is to be repaired and restated in April 2005. RP needs to continue to operate the site remediation system and monitor the groundwater at the site. The groundwater flow direction is predominately to the southwest. Robert Weimer
8/26/2005 Report or Workplan Review - Other June 29, 2005 site monitoring event. Up to 22.1 mg/l benzene, 336 mg/L GRO, and 36.4 mg/L DRO in the ground water in the one monitoring well sampled (G-2). Contamination concentrations in that monitoring well have increased for GRO and DRO. The remediation system was found to be not operating on March 28, 2005. The system was frozen. The system is to be repaired and restated in August 2005. RP needs to continue to operate the site remediation system and monitor the groundwater at the site. The groundwater flow direction is predominately to the southwest. Robert Weimer
10/11/2005 Update or Other Action On June 24, 2005 ADEC received notice from consultant they are currently completing repairs to the system blower and expect startup shortly. Robert Weimer
11/18/2005 Update or Other Action Discussed site status with RP's consultant. Annual groundwater report to be submitted soon. To look at modifications to monitoring well sampling. Robert Weimer
11/29/2005 Report or Workplan Review - Other September 16, 2005 site monitoring event. Up to 0.479 mg/l benzene, non-detect (<5 mg/l) GRO, and 1.34 mg/l DRO in the ground water in the monitoring wells sampled. The historically most contaminated well (G-2) was not sampled during this monitoring event. Contamination concentrations appear to be increasing. The remediation system was repaired and was attempted to be restated in August 2005 but could not because of water intrusion into the vapor extraction lines. RP needs to evaluate the site remediation system at the site. The groundwater flow direction is predominately to the southwest. Depth to groundwater ranged from 2.7 feet to 26 feet below ground surface. Robert Weimer
11/29/2005 Update or Other Action ADEC requests that monitoring well G-4 be sample in place of the dry monitoring well G-3. Robert Weimer
1/5/2006 Report or Workplan Review - Other December 1, 2005 site monitoring event. Up to 1.21 mg/l benzene, 4.08 mg/L GRO, and 134 mg/L DRO in the ground water in the one monitoring well sampled (G-4). The historically most contaminated well (G-2) was not sampled during this monitoring event. Contamination concentrations appear to be increasing. The remediation system was repaired and was attempted to be restated in August 2005 but could not because of water intrusion into the vapor extraction lines. RP needs to evaluate the site remediation system at the site. The groundwater flow direction is predominately to the southwest. Depth to groundwater at the site has ranged from 2.7 feet to 26 feet below ground surface during the last two monitoring events. Robert Weimer
3/8/2006 Update or Other Action March 8, 2006 drinking water sampling of the on-site community water well was non-detect for VOCs. DEC drinking water program requires that this drinking water well to be sampled for VOC's every 3 years. Robert Weimer
9/12/2006 Update or Other Action ADEC letter conditionally approving September 1, 2006 work plan. The work plan calls for semi-annual and quarterly groundwater monitoring, well survey, and evaluation on the remediation system which is currently turned off. The letter requests submittal of a conceptual site model, and QA/QC checklist. Robert Weimer
12/29/2006 Report or Workplan Review - Other December 29, 2006 groundwater monitoring event. Up to 19.6 mg/l benzene, 334 mg/L GRO, and 25.5 mg/L DRO in the ground water. Contamination concentrations appear to be increasing in some of the monitoring wells. The groundwater flow direction is predominately to the southwest. Depth to groundwater at the site has ranged from 5.23 feet to 27.72 feet below ground surface. Up to 4.55 mg/l benzene and 28.4 mg/l GRO in the monitoring wells on the adjacent 7221 Jewel Lake Road property. Robert Weimer
1/26/2007 Update or Other Action ADEC staff discussed site with RP's consultant. One option they are looking at is collecting shallow groundwater so vapor extraction can be conducted. Robert Weimer
2/21/2007 Exposure Tracking Model Ranking Initial ETM rankings for 1997 used oil tank and 1995 gas/diesel tanks. Site ranked on the new Exposure Tracking Model (ETM). The ETM is a new site ranking system that looks at, based on available data, the potential exposure pathways for the contamination remaining at the site. Robert Weimer
4/4/2007 Update or Other Action Conceptual Site Model submitted for this site. Robert Weimer
4/13/2007 Report or Workplan Review - Other September 28, 2006 site monitoring event. Up to 20 mg/l benzene, 286 mg/L GRO, and 13.4 mg/L DRO in the ground water. Contamination concentrations appear to be increasing. The remediation system was repaired and was attempted to be restated in August 2005 but could not because of water intrusion into the vapor extraction lines. RP's consultant is evaluating the site remediation system at the site. The groundwater flow direction is predominately to the southwest. Depth to groundwater at the site has ranged from 0.3 feet to 29 feet below ground surface. Robert Weimer
4/18/2007 Report or Workplan Review - Other December 29, 2006 site monitoring event. Up to 19.6 mg/l benzene, 334 mg/L GRO, and 89.1 mg/L DRO in the ground water. Contamination concentrations appear to be increasing. The remediation system was repaired and was attempted to be restated in August 2005 but could not because of water intrusion into the vapor extraction lines. RP's consultant is evaluating the site remediation system at the site. The groundwater flow direction is predominately to the southwest. Depth to groundwater at the site has ranged from 6.2 feet to 27.7 feet below ground surface. Groundwater contamination (up to 1.21 mg/l benzene, 4.08 mg/l GRO, and 134 mg/l DRO) over cleanup levels was identified on the property to the south at 7221 Jewel Lake Road. Robert Weimer
4/23/2007 Update or Other Action Discussed proposed workplan with RP's consultant. Collection sump to be moved to the north to be placed near SVE-3. Robert Weimer
4/24/2007 Update or Other Action ADEC approval of the April 10, 2007 "2007 Remediation System Re-Design Plan". The plan proposes to install groundwater collection trenches, a holding tank, and a solar evaporation pond. Future groundwater monitoring to be determined after review of the spring 2007 monitoring results. Robert Weimer
9/28/2007 Update or Other Action ADEC approves work plan for storing of 110 cubic yards of contaminated soil that was generated during the installation of the French drain system at the site. The contaminated soils are to be stored in a lined covered pile with vapor extraction piping on the adjacent property at 7221 Jewel Lake Road are owned by the gas station owner (Richard Godfrey). Robert Weimer
8/4/2008 Report or Workplan Review - Other April 20, 2007 site monitoring event. Up to 1.38 mg/l benzene, 5.12 mg/L GRO, and 0.472 mg/L DRO in the ground water. Two of the historically most contaminated monitoring wells were dry. Contamination concentrations appear to be decreasing in the monitoring wells sampled. The groundwater flow direction is predominately to the southwest. Depth to groundwater at the site has ranged from 6.76 feet to 30.43 feet below ground surface. Robert Weimer
8/5/2008 Report or Workplan Review - Other In October 2007 110 cubic yards of contaminated soil (up to 36.3 mg/kg benzene, 4,610 mg/kg GRO, 826 mg/kg DRO, and 169 mg/kg RRO) was excavated during the construction of the trench and sump. The contaminated soil was placed in an on-site lined/covered treatment cell. A lined/covered water treatment pond was constructed to treat contaminated groundwater pumped at the site. Robert Weimer
8/6/2008 Report or Workplan Review - Other November 11, 2007 groundwater monitoring event. Up to 21.2 mg/l benzene, 398 mg/L GRO, and 2,640 mg/L DRO in the ground water. Contamination concentrations appear to be increasing. The groundwater flow direction is predominately to the southwest. Depth to groundwater at the site has ranged from 2.04 feet to 26.94 feet below ground surface. Robert Weimer
8/12/2008 Report or Workplan Review - Other June 2, 2008 site monitoring event. Up to 21.2 mg/l benzene, 339 mg/L GRO, and 23.6 mg/L DRO in the ground water. Contamination concentrations appear to be increasing. The soil vapor extraction system was operate through May 2008, it will resume operation when water levels seasonally drop at the site. The soil treatment cell began operation in 2007. The groundwater remediation system began operation in June 2008. The groundwater flow direction is predominately to the southwest. Depth to groundwater at the site has ranged from 3.6 feet to 22.86 feet below ground surface. Groundwater contamination (up to 4.44 mg/l benzene, 23.9 mg/l GRO, and 23.6 mg/l DRO) over cleanup levels was identified on the property to the south at 7221 Jewel Lake Road. Robert Weimer
8/13/2008 Update or Other Action ADEC approves 2008 corrective action work plan. The work plan calls for semi-annual groundwater monitoring and operation of the new remediation system. Robert Weimer
4/20/2009 Report or Workplan Review - Other September 18, 2008 site monitoring event. Up to 14.1 mg/l benzene, 207 mg/L GRO, and 12.1 mg/L DRO in the ground water. Contamination concentrations appear to be decreasing. The soil vapor extraction system was operated through May 2008, it will resume operation when water levels seasonally drop at the site. During three groundwater pumping events in the summer of 2008, a total of nearly 8,000 gallons of contaminated water were removed. The groundwater flow direction is predominately to the southwest. Depth to groundwater at the site has ranged from 2.65 feet to 26.71 feet below ground surface. Groundwater contamination (up to 4.53 mg/l benzene, 25.6 mg/l GRO, and 16.1 mg/l DRO) over cleanup levels was identified on the property to the south at 7221 Jewel Lake Road. Robert Weimer
4/20/2009 Update or Other Action ADEC approves 2009 corrective action work plan. The work plan calls for semi-annual groundwater monitoring and operation of the new remediation system. The plan proposes to discharge contaminated water to the AWWU sanitary sewer in accordance with an AWWU permit. Robert Weimer
4/30/2009 Update or Other Action ADEC receives copy of AWWU permit to discharge an estimated 49,500 gallons of contaminated water to the AWWU sanitary sewer in mid May 2009 and mid July 2009. Robert Weimer
5/19/2009 Report or Workplan Review - Other April 14, 2009 site monitoring event. Up to 3.0 mg/l benzene, 23.0 mg/L GRO, and 2.78 mg/L DRO in the ground water. Contamination concentrations appear to be decreasing, but only 3 monitoring wells were sampled this monitoring event because several of the monitoring wells were dry or frozen. The soil vapor extraction system was operated through May 2008, it will resume operation when water levels seasonally drop at the site. During three groundwater pumping events in the summer of 2008, a total of nearly 8,000 gallons of contaminated water were removed. The groundwater flow direction is predominately to the southwest. Depth to groundwater at the site has ranged from 20.63 feet to 29.29 feet below ground surface. Benzene and GRO concentrations may be biased low due to bubbles in the VOA vials. Robert Weimer
4/6/2010 Report or Workplan Review - Other October 22, 2009 site monitoring event. Up to 15.1 mg/l benzene, 234 mg/L GRO, and 24.3 mg/L DRO in the ground water. Contamination concentrations increased in 2 of the 4 monitoring wells sampled. The soil vapor extraction system was operated May 2009 through October 2009, the warm air injection began in Ocotber 2009 and will operate through the 2009/2010 winter season. During three groundwater pumping events in the summer of 2009, a total of 89,100 gallons of contaminated water were removed and 50,000 gallons were discharged into the sanitary sewer under an AWWU permit. The groundwater flow direction is predominately to the southwest. Depth to groundwater at the site has ranged from 4.86 feet to 28.88 feet below ground surface. Air bubbles were in one VOC duplicate sample. Groundwater contamination (up to 0.482 mg/l benzene and 12.1 mg/l DRO) over cleanup levels was identified on the property to the south at 7221 Jewel Lake Road. Robert Weimer
7/2/2010 Report or Workplan Review - Other ADEC conditionally approves Proposed Corrective Action Work Plan for 2010. The plan calls for continued operation of the soil vapor extreaction and groundwater pump and treat system. The plan is approved to conduct annual groundwater monitoring of monitoring wells G-2, SVE-3, G-4, G-5, and G-7 for BTEX, GRO, and DRO. ADEC also requests that the during the next groundwater monitoring event monitoring well G-2 also be sampled for PAH, EDB, and 1,2-DCA. Robert Weimer
7/7/2010 Update or Other Action July 7, 2010 drinking water sampling of the on-site community water well was non-detect for VOCs. DEC drinking water program requires that this drinking water well to be sampled for VOC's every 3 years. Robert Weimer
3/29/2011 Meeting or Teleconference Held Talked with the current owner Richard Bishop, he needs to move the groundwater holding pond from the adjacent lot on to his lot. He mentioned that he does not have as much space available so it will need to be smaller but could be deeper. He will work with his consultant to try to do it in a way to keep the costs down. Robert Weimer
1/23/2012 Report or Workplan Review - Other August 18-19, 2011 site monitoring event. Up to 18.4 mg/l benzene (0.005 mg/l cleanup level), 278 mg/L GRO (2.2 mg/l cleanup level), 6.4 mg/L DRO (1.5 mg/l cleanup level), 0.00665 mg/l EDB (0.00005 mg/l cleanup level), and 0.163 mg/l 1,2-DCA (0.005 mg/l cleanup level) in the ground water. PAH's were also detected below but near cleanup levels. Contamination concentrations increased in 3 of the 4 monitoring wells sampled. A sheen was noted on the groundwater in monitoring wells G-2 and SVE-3. Several monitoring wells/covers were found damaged or frost jacked. The consultant recommends that they be repaired, secured, and re-surveyed. The soil vapor extraction system was not in operating at the time the groundwater was sampled. The consultant recommends that the system be restarted. The groundwater flow direction is predominately to the southwest. Depth to groundwater at the site ranged from 1.88 feet to 30.65 feet below ground surface. Robert Weimer
1/23/2012 Update or Other Action Based on review of the October 2011 groundwater monitoring report ADEC issued a letter requesting that the current gas station owner (Bishop) submit by March 1, 2012 documentation that the remediation system is in operation or a schedule for restarting the system. The report noted that several monitoring wells have been damaged, have frost jacked, and have damaged/not secured well caps. The ADEC requests that he submit by March 1, 2012 documentation that the monitoring wells have been repaired or a schedule for the repairs. The ADEC also requested that all of the site monitoring wells be surveyed prior to the next groundwater monitoring event. The ADEC requests the following annual groundwater monitoring: 1. That monitoring wells G-2, SVE-3, G-4, G-5, and G-7 be sampled on an annual basis for BTEX, GRO, and DRO. 2. That monitoring wells G-2 and SVE-3 is also sampled for PAH, EDB, and 1,2-DCA during the next groundwater monitoring event. Based on the results of that sampling ADEC will determine if these compounds will need to be sampled for in any subsequent monitoring events. Robert Weimer
2/7/2012 Update or Other Action Call from the current gas station owner (Bishop) to discuss planned work this year including: documentation that the monitoring wells have been repaired or a schedule for the repairs; surveying all of the site monitoring wells prior to the next groundwater monitoring event; and annual groundwater monitoring: 1. That monitoring wells G-2, SVE-3, G-4, G-5, and G-7 be sampled on an annual basis for BTEX, GRO, and DRO. 2. That monitoring wells G-2 and SVE-3 is also sampled for PAH, EDB, and 1,2-DCA during the next groundwater monitoring event. He is currently researching the most cost effective way to treat the collected groundwater so it can be discharged into the sanitary sewer. He will provide a follow up call or email. Robert Weimer
5/6/2013 Update or Other Action May 6, 2013 drinking water sampling of the on-site community water well was non-detect for VOCs. DEC drinking water program requires that this drinking water well to be sampled for VOC's every 3 years. Robert Weimer
6/28/2013 Site Visit Site visit to observe current site conditions. Robert Weimer
8/22/2013 Update or Other Action Discussed site status with property owner (Richard Bishop). The adjacent property where the pumped water had been stored in a 2,000 gallon cell has been taken over by the bank. He has constructed a similar 2,000 gallon cell in his property. He has also obtained a AWWU discharge permit for water in the cell but has to test each 2,000 batch for discharge to AWWU sanitary sewer. He plans to have damaged monitoring well monuments repaired. He may replace some of the fuel dispensers, replace existing structures, and/or replace the concrete pad. He will contact the UST program about the dispensers and CS program if he is excavating any soil. He plans to schedule a site visit for further discussions. Robert Weimer
9/3/2013 Site Visit Site visit with owner/operator (Richard Bishop) to discuss future site work. He will contact consultant to have groundwater sampling conducted in accordance with the DEC 1/23/2012 letter. He will also have the damaged monitoring wells repaired. There is still a soil stockpile on the property to the south at 7221 Jewel Lake Road that was generated by the previous owner/operator. The 7221 Jewel Lake Road property was owned by the previous gas station owner and now owned by First National Bank of Alaska. Robert Weimer
6/5/2014 Site Visit Site visit to observe current site conditions. Robert Weimer
9/16/2014 Site Visit Site visit to discuss future site work with property owner. He will talk to the UST program about upgrades to his current UST system. Robert Weimer
10/9/2014 Report or Workplan Review - Other DEC provides comments on proposed work plan to collect soil and groundwater samples from the property at 7221 Jewel Lake Road to the south of the gas station. Soil and groundwater contamination has been documented on that property and a 110 cubic yard contaminated soil stockpile and a contaminated groundwater evaporative pound are located on the 7221 Jewel Lake Property. The work plan was submitted on behalf of First National Bank, the current owner of that property. The work plan proposes to collect soil samples from the one large (110 cy) and two small (<1 cy each) stockpiles, collect groundwater samples from the 4 monitoring wells, and drill and sample 5 soil borings, three of which are to be drilled to groundwater. Robert Weimer
10/10/2014 Site Visit Site visit to observe current site conditions. Assessment work to be done soon on the adjacent property to the south at 7221 Jewel Lake Road. Robert Weimer
10/29/2014 Report or Workplan Review - Other DEC provides comments on prevised work plan to collect soil and groundwater samples from the property to the south of the gas station at 7221 Jewel Lake Road. The work plan was submitted on behalf of First National Bank, the current owner of that property. Robert Weimer
10/31/2014 Update or Other Action LUST site created in CSP database for source area 1997 Used Oil tank, 78432 Robert Weimer
1/29/2015 Site Visit Site visit to observe site conditions. Contaminated stockpile on adjacent property is covered and secure. Robert Weimer
8/10/2015 Report or Workplan Review - Other As part of a Phase II Assessment in November 2014 soil and groundwater samples were collected at the adjacent property to the south at 7221 Jewel Lake Road by the consultant for that property owner (First National Bank of Alaska). Select DRO and RRO samples were also analyzed after silica gel cleanup. The four monitoring wells (G-4, G-7, G-9, and G-10) and sump on that property were sampled and had up to 27 mg/l DRO, 56.5 mg/l GRO, 78.1 mg/l RRO, 5,880 ug/l benzene, and 34.2 ug/l 1,2-Dichloroethane (5 ug/l cleanup level) in the groundwater samples collected. Four soil borings were drilled and sampled, they had up to 4,990 mg/kg DRO, 9,980 mg/kg GRO, 10,600 mg/kg RRO, 265 mg/kg benzene, 7.97 mg/kg 1,2-Dichloroethane (0.016 mg/kg cleanup level) and 50.1 mg/kg lead in the soil samples collected. Two soil samples were collected from the former building foundation where the groundwater storage/evaporation cell was had up to 0.245 mg/kg benzene, 565 mg/kg DRO, 4,490 mg/kg RRO, non-detect GRO, and 3.65 mg/kg lead. Three samples were collected from the 110 cubic yard covered stockpile had up to 159 mg/kg DRO, 2.35 mg/kg GRO, 1,050 mg/kg RRO, PAHs below cleanup levels, and 0.0111 mg/kg benzene. The one sample collected from a one cubic yard pile of tar-like material that was below cleanup levels for BTEX, GRO, DRO, RRO, and PAHs. A one cubic yard pile of gravel soil, and areas of visible surface stains were not sampled. Higher concentration of soil and groundwater contamination may exist on the property and in the stockpiles since the Phase II report did not include sufficient documentation (such as laboratory data sheets, field notes, and QA/QC checklists) to demonstrate that the samples were collected in accordance with ADEC requirements. Since bailers were used to collect the groundwater samples, the volatile sample results are considered biased low due to the loss of volatiles by using that sampling method. Robert Weimer
9/1/2015 Update or Other Action Update from owners representative that Richard Bishop is purchasing the adjacent property to the south at 7221 Jewel Lake Road from First National Bank of Alaska. The owners representative will talk to Richard Bishop about having the monitoring wells repaired, surveyed, and analytical samples collected from them as per past discussions. Robert Weimer
8/29/2016 Update or Other Action Update from Richard Bishop about moving and/or disposing the soil stockpile on the adjacent property to the south at 7221 Jewel Lake Road. We discussed I would need a work plan for the sampling of that stockpile to characterize it for treatment, disposal, or reuse. He said he would talk to his environmental consultant at putting together a work plan. Robert Weimer
10/26/2016 Update or Other Action DEC provides comments regarding the sampling of the 110 cy stockpile located on the property to the south. That stockpile was generated during the trenching for the installation of the treatment system upgrades in 2007. DEC requests 3 analytical samples +1 duplicate based on a minimum of 11 field screening locations. Would also need one VOC soil trip blank. The locations need to be throughout the stockpile including the base of the stockpile a minimum of 18” into the surface of the stockpile. The analytical are to include VOCs (8260), GRO, DRO, RRO and total lead in all of the samples. The most likely contaminated location would also include PAHs, EDB, and 1,2-DCA. Any total lead sample 100 mg/kg or greater will need TCLP. Robert Weimer

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