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Site Report: Five Star Auto Care Center (Former)

Site Name: Five Star Auto Care Center (Former)
Address: 501 30th Ave. (South Cushman & 30th Ave), Fairbanks, AK 99701
File Number: 102.26.027
Hazard ID: 24230
Status: Active
Staff: Rebekah Reams, 9074512144 rebekah.reams@alaska.gov
Latitude: 64.819957
Longitude: -147.711677
Horizontal Datum:WGS84

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

Problems/Comments

The site is a fenced, vacant dirt and gravel lot with two attached structures, one building and one former car wash bay. Historically, the site was used as a retail gas station and contained one building, one former car wash bay, four dispenser islands, and underground storage tanks (USTs). On August 20, 1990 one 500-gallon used oil UST, one 400-gallon diesel UST, and one 10,000-gallon gasoline UST were excavated and removed from the site. During removal of the USTs the presence of hydrocarbon impacted soils were observed in the soil. Excavated soil was used to backfill the excavation pits. In 2015 the owner of the adjacent property to the west conducted a Phase II limited investigation of environmental impacts on their property. Elevated concentrations of hydrocarbons, especially benzene, were found in soil and groundwater samples collected throughout the property. Concentrations were highest at the eastern side of the property that borders the site. Preliminary site characterization work was completed at the Five Staur Auto Car Center (Former) site in July of 2019. Eleven soil boring, five monitoring wells, and three temporary well points were advanced to characterize contamination at the site. Gasoline range organics (GRO), diesel range organics (DRO), benzene, toluene, ethylbenzene and xylenes (BTEX), naphthalene, 1,2-dichloroethane (EDC), lead and select volatile organic compounds (VOCs) and polycyclic aromatic hydrocarbons (PAHs) were identified above soil cleanup levels at the site. Residual range organics (RRO), GRO, DRO, BTEX, naphthalene, lead, and select VOCs and PAHs were identified in groundwater above cleanup levels.

Action Information

Action Date Action Description DEC Staff
8/20/1990 Update or Other Action REM; Alaska Department of Commerce & Economic Development hired Shannon & Wilson to remove 500 gallon waste oil tank, 400 gallon diesel tank, and a 10,000 gallon gasoline tank from the site. 9 soil samples were collected and 7 out of 9 were above DEC cleanup levels. Headspace gas concentrations suggest a volatile source of contamination. Samples at the waste oil tank ranged from 61 - 772 ppm TRPH; diesel tank 601 - 4600 ppm TRPH; gasoline tank had both diesel and gas contamination with diesel in the greatest concentrations: 6 - 6900 ppm and total BTEX ranged from 0.68 - 603 ppm. Samples for halogenated volatiles in the vicinity of the waste oil tank were found to be below detection limits. The water table was encountered at 8.5 - 9 feet below the surface. Excavation halted before PID registered below 100 ppm TPH and the excavated soils were placed back in the holes. A strong hydrocarbon odor was noted at all depths and surface soils were stained to a depth of approximately 1 inch Former Staff
8/31/1990 Leaking Underground Storage Tank Release Confirmed - Petroleum LUST Site created in CSP for source area ID 77745 ADD; UST soil contamination, surface spills and leaking drums. Former Staff
8/31/1990 Site Added to Database Former Staff
9/1/1990 Leaking Underground Storage Tank Cleanup Initiated - Petroleum LCAU; HUNG: 500 gals. waste oil, 400 gals. diesel, 10,000 gals. gasoline USTs excavated 8/20/90. Contaminated soils replaced in excavation. Soil samples taken indicated high levels of contamination. Site sold by State to present owners (Cornerstores, Inc.) Cleanup pending FA. : LCAU date changed DB conversion Former Staff
4/7/1992 Update or Other Action NOR; Thomas sent. Former Staff
4/7/1992 Update or Other Action MEET; Helped PRP fill out Financial Assisstance App. Former Staff
9/8/1992 Update or Other Action UPD; Hung reviewed. Former Staff
2/23/1993 Potentially Responsible Party/State Interest Letter RPL2; Peterson sent PRP-CS Database Notification letter to RP requesting update and more environmental information concerning contaminated site. AS of this "complete date" no response has been rec'd. Former Staff
6/6/1994 Potentially Responsible Party/State Interest Letter CORR; Wingerter sent letter informing RP of their financial liability under new ADEC cost recovery policy. State is authorized, under Section 9003(h) of the Resource Conservation and Recovery Act to take action on this LUST facility. Former Staff
1/29/1997 Update or Other Action Ph call to Fountainhead Developmt re-status of cleanup. RP states leased property to various tenants & was approached by Dave Webb to sell. Sold to US Tire '95. Former Staff
9/11/1997 Update or Other Action ph. calls to lessee of lot 1B & owner of Lot 1A for on-site visits. Former Staff
9/12/1997 Site Visit Conducted visit by driving and taking photos around lots 1A and conducting on-site visit at Lot 1B. Original site had been subdivided into lots 1A &1B by Fountainhead Development after purchase from State. There are floor drains on both properties. (US Tire -1B & Chaz, Ltd.-1A). Former Staff
9/12/1997 Update or Other Action Ph call fr Lot 1A owner, left message re-on-site visit will be inconvenient. DEC unable to make contact w/owner. Former Staff
9/25/1997 Update or Other Action Ph call to Fountainhead Developmt for list of former tenants & types of businesses occupying site prior to sale of site. Former Staff
10/28/1997 Update or Other Action Fountainhead Developmt responds to DEC request for list of former tenants/businesses. List is unclear as tenants/businesses not mentioned. Former Staff
11/20/1997 Potentially Responsible Party/State Interest Letter ADEC sends Notification of Intent to Cost Recover Letter to Current Owner: DENNIS WISE Former Staff
11/5/1998 Site Visit Drive by indicates owner of Lot 1A, Chuck Miller has replaced all US Tire signs with Chaz, Ltd business signs. Former Staff
3/14/2007 Exposure Tracking Model Ranking Initial ETM site ranking completed. Evonne Reese
5/6/2008 Update or Other Action Sent letter to current owner requesting status of site. Tamara Cardona-Marek
11/6/2009 Update or Other Action Transferred site management from Tamara Cardona-Marek to Jim Fish. Janice Wiegers
1/30/2014 Update or Other Action Site transferred from Fish to Dieffenbacher. Rebecca Bryan
5/15/2014 Update or Other Action Attempted phone contact with RP and left contact information with employee at site address. Amy Rodman
5/21/2014 Update or Other Action Spoke to Shane Wendte, Anchorage Chaz Limited store manager, about Fairbanks site and requested current contact information for Charles Miller. Was instructed to mail correspondence to the 1801 E. 5th Ave. Anchorage store, c/o Chuck Miller. Mr. Wendte confirmed that Mr. Miller still owns the Chaz Limited property in Fairbanks. Amy Rodman
6/12/2014 Update or Other Action Mailed workplan request letter to RP via USPS Certified Mail, deadline: July 15. Amy Rodman
7/14/2014 Potentially Responsible Party/State Interest Letter PRP Notification Letter mailed to Paradigm Properties LLC. Amy Rodman
7/21/2014 Potentially Responsible Party/State Interest Letter Mailed PRP Notification Letter to Lindsey Hall with Paradigm Properties LLC via USPS Certified Mail following a telephone conversation. Ms. Hall stated there is no money available for remediation work at the site. The site is used for storage purposes and has one building that is not heated. Amy Rodman
7/31/2014 Update or Other Action Staff changed from Amy Dieffenbacher to Melody Debenham. Changed again to Carnahan. Kristin Thompson
8/31/2015 Update or Other Action Review file and update the responsible party information. Located online information that Paradigm Properties, Paramount Investments and Chaz Collision, LLC all have the same principal - Charles Eugene Miller Living Trust, and registered agent, Brent R. Cole. See Affiliates info. Further information identified that CCM Investments, LLC, was current owner of Lot 1A only and Paradigm Properties owned Lot 1B, or Five Star Site. John Carnahan
11/9/2015 Update or Other Action New PRP letter to manager of Paradigm Properties, attorney in Anch. Included request for workplan to address outstanding issue within 45 days. Determined to leave the PRP status with the ownership of Lot 1B only, in that it was the location of the 5-Star Auto tanks that were removed. Attorney indicated that he would forward letter. John Carnahan
1/6/2016 Update or Other Action DEC notified RP by mail of environmental liability regarding this property. In that letter, DEC requested a release investigation work plan no later than 45 days from the receipt of the letter, or approximately January 1, 2016. January 6, 2016, the letter was re-sent. A request for a written work plan no later than 30 days from the receipt of the letter was again requested. John Carnahan
2/12/2016 Update or Other Action Additional request by DEC that further investigation and subsequent cleanup would be required. A request for a written work plan no later than 30 days from the receipt of the letter was again requested. John Carnahan
2/16/2016 Potentially Responsible Party/State Interest Letter Sent letter reiterating responsibility for a Release Investigation to known addresses of historical RP. John Carnahan
4/22/2016 Update or Other Action Discussed site issues and concerns regarding potential historical release. Requested confirmation of receipt of letters from State, and updated contact information. John Carnahan
10/17/2016 Enforcement Action Compliance advisory letter sent to PRPs (two). John Carnahan
1/31/2017 Document, Report, or Work plan Review - other Received Phase I ESA for subject property. John Carnahan
4/6/2017 Document, Report, or Work plan Review - other Provided comments on work plan to investigate multiple source areas on property. John Carnahan
5/18/2017 Update or Other Action Sent follow up request for a response to DEC comments on work plan. John Carnahan
7/6/2017 Update or Other Action DEC sent a letter to RP attention allowing implementation of a ‘phased approach’ to investigating the site, with an initial focus on the primary known areas of contamination, with more site-wide investigation to follow. A deadline to respond with an acceptable approach was established for July 20, 2017. John Carnahan
8/3/2017 Update or Other Action Sent request for response to letter of July 6. John Carnahan
8/23/2017 Update or Other Action Sent request for status on work plan response and schedule. John Carnahan
9/20/2017 Update or Other Action Re-sent July 6 letter (email) requesting action. John Carnahan
10/2/2017 Update or Other Action Re-sent July 6 letter by email requesting action. John Carnahan
11/29/2017 Enforcement Action NOV sent to RP and entered into CATS database. John Carnahan
9/1/2018 Update or Other Action CHEVRON has determined that it has liability and will be forthcoming with work plan for fall 2018 site investigation. John Carnahan
11/8/2018 Meeting or Teleconference Held Meeting with Chevron and consultant (Arcadis) to discuss multiple Chevron projects. Allowed time to develop comprehensive work plan, although GPR study may be possible in late 2018, early 2019. Identified second refueling area along southwest property boundary that may extend onto adjacent Lot 1A to the west. Informed Chevron and C. Miller who owns Lot 1A. John Carnahan
7/24/2019 Site Characterization Workplan Approved Approval was provided by the DEC to proceed with the "first phase" of site characterization of soil and groundwater contamination associated with petroleum releases at the site. After the results are reviewed, a work plan addendum as been requested to evaluate the vapor intrusion pathway for buildings potentially impacted by the soil and groundwater contamination. Shawn Tisdell
8/9/2019 Meeting or Teleconference Held DEC staff met with Arcadis and Chevron representatives to discuss the current status and upcoming site cleanup goals for this site. Shawn Tisdell
8/26/2019 Site Visit DEC staff visited the site to observe soil and groundwater sampling during site characterization event. Between one and two feet of product, possibly gasoline, were observed floating on the groundwater near the northwest corner of Lot 1-B. Shawn Tisdell
8/28/2019 Site Visit DEC staff visited the site to observe groundwater monitoring sample collection and meet with sampling staff. Shawn Tisdell
8/28/2019 Site Visit DEC staff observed water quality parameter measurements and sample collection by Arcadis staff for petroleum related analysis from well MW-5. Shawn Tisdell
10/29/2019 Workplan Requested DEC staff met via telephone with Arcadis staff to discuss an upcoming groundwater sampling event and proposed work plan addendum for additional site characterization. Arcadis proposed advancing three additional borings to help delineate the extent of contamination to the south west of MW-4, where up to two feet of product had been discovered. They also discussed product sampling for identification. Additional details will be provided in the addendum work plan. Shawn Tisdell
11/7/2019 Meeting or Teleconference Held DEC staff met with Arcadis staff to discuss the site and determine cleanup goals for the site. Shawn Tisdell
3/6/2020 Document, Report, or Work plan Review - other DEC Received Site Groundwater Monitoring Work Plan Rebekah Reams
4/24/2020 Document, Report, or Work plan Review - other DEC provided comments on the Groundwater Investigation Summary Report submitted on January 27, 2019 and the Site Groundwater Monitoring Work Plan submitted March 6, 2020. Rebekah Reams
5/29/2020 Offsite Soil or Groundwater Disposal Approved DEC approved the transport and disposal of 2 cubic yards of soil cutting and 315 gallons of purge and decontamination water. An alternate strategy for disposal of soil containing high concentrations of lead from MW-5 will be proposed and verification of receipts and post treatment analysis following remediation has been requested. Rebekah Reams
10/8/2020 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 77745 USTs. Rebekah Reams
11/6/2020 Update or Other Action Scheduled quarterly monitoring was not able to be completed due to inclement weather. Rebekah Reams
11/20/2020 Offsite Soil or Groundwater Disposal Approved Approved request to transport 0.3 cubic yards of contaminated soils produced from MW-5 in August 2019 to US Ecology, Moose Creek Facility. Rebekah Reams
12/18/2020 Document, Report, or Work plan Review - other DEC approved the Soil Vapor Investigation Work Plan following comment resolution. This work plan outlines plans to install five soil vapor monitoring probes to evaluate soil vapor hydrocarbon impacts across the site and adjacent property. Rebekah Reams
1/15/2021 Meeting or Teleconference Held DEC staff met with Chevron Environmental Management Company (CEMC) and Arcadis to discuss Chevron sites located in Alaska during the Annual Portfolio Meeting on January 14th and 15th, 2021. Rebekah Reams
8/2/2021 Document, Report, or Work plan Review - other 2020 Second Quarter Groundwater Monitoring event was conducted on June 18, 2020. Groundwater samples were collected from monitoring wells MW-1 through MW-3, and MW-5. MW-4 was not sampled due to the presence of LNAPL (0.23 ft). Samples were submitted to the laboratory for GRO, DRO, RRO, VOCs, and lead analysis. Groundwater flow direction was to the west-southwest and depth to groundwater was 6.43 to 7.70 feet below ground surface. Rebekah Reams
8/2/2021 Document, Report, or Work plan Review - other 2020 Third Quarter Groundwater Monitoring event was conducted on July 28, 2020. Groundwater samples were collected from monitoring wells MW-1 through MW-3, and MW-5. MW-4 was not sampled due to the presence of LNAPL (0.15 ft). Samples were submitted to the laboratory for GRO, DRO, RRO, VOCs, and lead analysis. Groundwater flow direction was to the southwest and depth to groundwater was 5.35 to 6.60 feet below ground surface. Rebekah Reams
8/2/2021 Document, Report, or Work plan Review - other 2021 First Quarter Groundwater Monitoring event was conducted on March 25, 2021. Groundwater samples were collected from monitoring well MW-3. MW-1, MW-2, MW-4, and MW-5 were unable to be located due to the presence of snow berms. Samples were submitted to the laboratory for GRO, DRO, RRO, VOCs, and lead analysis. Groundwater was 9.80 feet below ground surface. Rebekah Reams
8/31/2021 Document, Report, or Work plan Review - other 2021 Second Quarter Groundwater Monitoring event was conducted on June 14, 2021. Groundwater samples were collected from monitoring wells MW-1 through MW-3, and MW-5. MW-4 was not sampled due to the presence of LNAPL (0.07 feet) in the well. Samples were submitted to the laboratory for GRO, DRO, RRO, VOCs, and lead analysis. Several analytes were identified in the trip and/or equipment blank samples and additional data quality parameters were exceeded which resulted in qualification of the associated data where applicable. Groundwater flow direction was to the southeast and depth to groundwater was 6.85 to 8.25 feet below ground surface. Rebekah Reams
11/29/2021 Document, Report, or Work plan Review - other 2021 Third Quarter Groundwater Monitoring event was conducted on August 17, 2021. Groundwater samples were collected from monitoring wells MW-1 through MW-3. MW-4 was unable to be sampled due to the presence of LNAPL (0.07 ft) and MW-5 was flooded and could not be gauged or sampled. Samples were submitted to the laboratory for GRO, DRO, RRO, VOCs, and lead analysis. Several analytes were identified in the trip and/or equipment blank samples and additional data quality parameters were exceeded which resulted in qualification of the associated data where applicable. Groundwater flow direction was to the west-southwest and depth to groundwater was 6.95 to 7.90 feet below ground surface. Rebekah Reams
2/7/2022 Document, Report, or Work plan Review - other 2021 Fourth Quarter Groundwater Monitoring event was conducted on October 13, 2021. Groundwater samples were collected from monitoring well MW-1 through MW-3. MW-4 was unable to be sampled due to the presence of LNAPL (0.05 ft) and MW-5 was damaged by a snowplow and could not be sampled. The amount of damage to monitoring well MW-5 due to the snowplow will be assessed during the first quarterly event of 2022. Samples were submitted to the laboratory for GRO, DRO, RRO, VOCs, and lead analysis. Groundwater flow direction was to the west-southwest and depth to groundwater was 7.45 to 8.45 feet below ground surface. Rebekah Reams
5/17/2022 Document, Report, or Work plan Review - other 2022 First Quarter Groundwater Monitoring event was conducted on March 14, 2022. No groundwater samples were collected during this monitoring event. MW-1, MW-2, MW-4, and MW-5 were unable to be located due to the presence of snow and ice on the site and MW-3 was not sampled due to the presence of ice and LNAPL (0.06 ft). The amount of damage to monitoring well MW-5 will be assessed during the second quarterly event of 2022. Depth to groundwater at MW-3 was 10.68 feet below ground surface. Rebekah Reams
5/18/2022 Offsite Soil or Groundwater Disposal Approved DEC approved off-site transport for 12,000 pounds of soil and 385 gallons of purge water and decontamination water. Rebekah Reams
6/3/2022 Update or Other Action The Additional Delineation Work Plan, Conceptual Site Model Report, and Soil Vapor Sampling Report have been submitted to DEC and are pending review. Rebekah Reams
6/29/2022 Document, Report, or Work plan Review - other DEC approved the Interim Remediation Work Plan following comment resolution. This work plan proposes to remove LNAPL and contaminated groundwater from monitoring wells MW-2, MW-3, and MW-4 over eight separate bi-weekly enhanced fluid recovery (EFR) events over a two-year period. Rebekah Reams
7/28/2022 Site Characterization Workplan Approved DEC approved the Additional Investigation Work Plan following comment resolution. This work plan proposes to advance six soil borings, install six groundwater monitoring wells and five soil vapor probes, and decommission monitoring well MW-5 and soil vapor probe SVP-3. Rebekah Reams
9/19/2022 Site Visit CS staff conducted a site visit with Chevron personnel during enhanced fluid recovery operations at the site Rebekah Reams
10/10/2022 Offsite Soil or Groundwater Disposal Approved ADEC approved transport of 18,000 pounds of purge water and decontamination water and 20,000 pounds of soil cuttings generated from 2019 through 2022. This investigation derived waste includes waste that was previously approved for transport, but was not transported offsite. Rebekah Reams
6/21/2023 Long Term Monitoring Workplan or Report Review ADEC approved the Groundwater Assessment and Well Installation Work Plan following comment resolution. This work plan proposes to install monitoring well MW-6 and update the analytes included in the sampling plan. Rebekah Reams
9/6/2023 Long Term Monitoring Workplan or Report Review 2022 Fourth Quarter Groundwater Monitoring event was conducted on October 7, 2022. No groundwater samples were collected during this monitoring event. Samples were collected from monitoring well MW-1 through MW-3, MW-5A, and MW-7 through MW-10 were submitted to the analytical laboratory for GRO, DRO, RRO, VOCs, and lead analysis. MW-4 was not sampled due to the presence of LNAPL. Depth to groundwater was 6.69 to 10.68 feet below ground surface and groundwater flow direction was to the northwest. Enhanced fluid recovery (EFR) events were conducted on August 8, August 22, September 9, and September 19, 2022. Rebekah Reams
9/6/2023 Long Term Monitoring Workplan or Report Review 2022 Fourth Quarter Groundwater Monitoring event was conducted on October 7, 2022. No groundwater samples were collected during this monitoring event. Samples were collected from monitoring well MW-1 through MW-3, MW-5A, and MW-7 through MW-10 were submitted to the analytical laboratory for GRO, DRO, RRO, VOCs, and lead analysis. MW-4 was not sampled due to the presence of LNAPL. Depth to groundwater was 6.69 to 10.68 feet below ground surface and groundwater flow direction was to the northwest. Enhanced fluid recovery (EFR) events were conducted on August 8, August 22, September 9, and September 19, 2022. Rebekah Reams
2/23/2024 Long Term Monitoring Workplan or Report Review 2023 First Quarter Groundwater Monitoring event was conducted on March 20 and 21, 2023. Samples were collected from monitoring well MW-1 through MW-3 and MW-7 through MW-10 were submitted to the analytical laboratory for GRO, DRO, RRO, VOCs, EDB, and lead analysis. Monitoring wells MW-4 and MW-5A could not be located due to large snow berms. Depth to groundwater was 8.26 to 11.85 feet below ground surface and groundwater flow direction was to the north-northwest. Rebekah Reams
2/23/2024 Long Term Monitoring Workplan or Report Review 2023 Second Quarter Groundwater Monitoring event was conducted on June 12, 2023. Samples were collected from monitoring well MW-1 through MW-3, MW-5A, and MW-7 through MW-9 were submitted to the analytical laboratory for GRO, DRO, RRO, VOCs, EDB, and lead analysis. Monitoring well MW-4 was not sampled due to the presence of 0.37 ft of LNAPL and monitoring well MW-10 was obstructed by ice. Depth to groundwater was 6.55 to 10.18 feet below ground surface and groundwater flow direction was to the north-northwest. DRO, GRO, BTEX, EDB, EDC, TCE, naphthalene, cis-1,2-dichloroethene, 1,2,4-trimethylbenzene, 1,3,5-trimethylbenzene, and lead exceeded cleanup levels during this sampling event. Rebekah Reams
2/23/2024 Long Term Monitoring Workplan or Report Review 2023 Third Quarter Groundwater Monitoring event was conducted on August 14, 2023. Samples were collected from monitoring well MW-1 through MW-3, MW-5A, and MW-7 through MW-9 were submitted to the analytical laboratory for GRO, DRO, RRO, VOCs, lead, 1-methylnaphthalene and 2-methylnaphthalene analysis. Monitoring well MW-4 was not sampled due to the presence of 0.73 ft of LNAPL. Depth to groundwater was 6.19 to 10.10 feet below ground surface and groundwater flow direction was to the north-northwest. Rebekah Reams
2/27/2024 Long Term Monitoring Workplan or Report Review Fourth Quarter 2023 Groundwater Monitoring event was conducted on October 5, 2023. Samples were collected from monitoring well MW-1 through MW-3, MW-5A, and MW-6 through MW-10 were submitted to the analytical laboratory for GRO, DRO, RRO, VOCs, lead, 1-methylnaphthalene, 2-methylnaphthalene, and naphthalene analysis. Monitoring well MW-4 was not sampled due to the presence of 0.80 ft of LNAPL. Depth to groundwater was 6.25 to 10.21 feet below ground surface and groundwater flow direction was to the northwest. This report also summarizes enhanced fluid recovery (EFR) extraction events. A total of 4.45 lbs of GRO and 0.308 lbs of DRO was extracted from all EFR wells during the 2023 reporting period. In addition, a combined total of 2.64 lbs of BTEX, naphthalene, and EDB was extracted from all EFR wells during the 2023 reporting period. Rebekah Reams
2/28/2024 Document, Report, or Work plan Review - other ADEC provided comments on the Additional Site Assessment Report which documents the advancement of soil borings SB-14 through SB-17, SB-20, and SB-22, groundwater monitoring wells MW-5A, MW-7 through MW-10, and the installation of five soil vapor probes SVP-3A and SVP-6 through SVP-9. The results of this investigation detected the presence of GRO, DRO, BTEX, naphthalene, EDB, EDC, n-butylbenzene, chloroform, isopropylbenzene, n-propylbenzene, 1,2,4-trimethylbenzene, 1,3,5-trimethylbenzene, acenaphthene, benzo(a)antracene, benzo(a)pyrene, benzo(b)fluoranthene, dibenz(a,h)anthracene, fluorene, ideno(1,2,3-cd)pyrene, phenanthrene, pyrene, 1-methylnaphthalene, and 2-methylnaphthalene in soil. GRO, DRO, BTEX, naphthalene, EDB, EDC, cis-1,2-dichloroethene, 1,2,4-trimethylbenzene, 1,3,5-trimethylbenzene, and 1-methylnaphthalene exceeded groundwater cleanup levels. Chloroform and PCE exceeded commercial target levels in soil gas during this sampling event. Rebekah Reams
5/8/2024 Document, Report, or Work plan Review - other ADEC approved the 2024 Site Investigation Work Plan following comment resolution. This work plan proposes to advance 13 soil borings (SB-23 through SB-35) and convert them into monitoring wells (MW-11 through MW-23), decommission MW-5, collect soil, groundwater, and soil gas samples, and investigate the presence of a potential underground storage tank remaining at the site. Rebekah Reams
7/30/2024 Update or Other Action Approved work plan deviation: MW-16 is unable to be installed in the proposed location due to utility conflicts, this monitoring well location will be moved approximately 30 feet west. Rebekah Reams
9/25/2024 Meeting or Teleconference Held ADEC staff met with Chevron and their consultant for an annual portfolio meeting to discuss site status, upcoming document submittals, pending reviews, and general updates for Chevron's contaminated sites throughout the state. Rebekah Reams

Contaminant Information

Name Level Description Media Comments

Control Type

Type Details

Requirements

Description Details
Hazard ID Site Name File Number
26524 Commercial Property - 511 East 30th Avenue 102.38.193

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