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HomeMy WebLinkAboutDERR-2025-001650Underwood Environmental Consulting, Inc. 9475 N. Silver Creek Rd., Park City, Utah 84098  Phone 801-831-6966  Fax 888-472-0977 GROUNDWATER MONITORING REPORT – FEBRUARY 2025 Work Plan OAQ-04 March 5, 2025 Express Food and Fuel (Jacksons #5825) 850 West Highway 40 Vernal, Utah Facility ID #9000165, Release Site OAQ Submitted To: Mr. Andrew Marvin Jacksons Food Stores 3450 East Commercial Court Meridian, Idaho 83642 Copy To: Ms. Nicole Chavez Department of Environmental Quality Division of Environmental Response and Remediation P.O. Box 144840 Salt Lake City, Utah 84114-4840 Groundwater Monitoring Report – February 2025 Express Food and Fuel (Jacksons #5825) 850 West Hwy 40, Vernal, UT Facility ID #9000165, Release Site OAQ Underwood Environmental Consulting, Inc. 1 1.0 INTRODUCTION Underwood Environmental Consulting, Inc. (UEC) conducted a groundwater monitoring event for Jacksons Companies at the Express Food and Fuel (formerly Fast Stop #1121) service station in Vernal, Utah. The project site, located at 850 West Highway 40 (821 W. Main St. in DERR correspondence), includes a convenience store, retail fueling facilities, and car wash (Figure 1). Quarterly groundwater monitoring has been conducted following a reported release of unleaded gasoline in May 2021 and a subsequent subsurface investigation in October 2021. The site is eligible for Petroleum Storage Tank (PST) Fund reimbursement. The Utah Division of Environmental Response and Remediation (DERR) identifies the project site as Facility ID #9000165, Release Site OAQ. 2.0 BACKGROUND The site has one previous release designation (JMP) related to underground storage tank (UST) system removal in April 1996. One closure soil sample slightly exceeded the recommended cleanup level (RCL) established at the time. A “no further action” (NFA) letter for Release JMP was issued in May 1996 (DERR, 1996). Release OAQ was opened based upon a release of unleaded gasoline reported in May 2021. The release was reported based on observation of a leaking pipe gasket within the sump under a dispenser (dispenser 5-6). The applicable UST was immediately taken out of service as a precaution. Under dispenser repairs were promptly completed and the system was put back into operation. UEC performed a subsurface investigation at the site in October 2021. At that time, four locations were drilled and sampled east of dispenser 5-6 and one location was drilled and sampled west of the UST basin (Figure 1). No free product was observed during the subsurface investigation. Hydrocarbons were detected, however, in soil and groundwater samples collected east of the dispensers (UEC, 2021). 3.0 METHODOLOGY 3.1 Groundwater Monitoring On February 3, 2025, water levels were measured in four monitoring wells using an electronic water level indicator. The monitor wells were subsequently purged of three casing volumes of water prior to sampling. A separate disposable bailer was utilized for each well. The groundwater samples were labeled appropriately, placed on ice, and submitted to the laboratory under chain-of-custody. The groundwater samples were analyzed for methyl tertiary butyl ether (MTBE), benzene, toluene, ethylbenzene, total xylenes, naphthalene (BTEXN), total petroleum Groundwater Monitoring Report – February 2025 Express Food and Fuel (Jacksons #5825) 850 West Hwy 40, Vernal, UT Facility ID #9000165, Release Site OAQ Underwood Environmental Consulting, Inc. 2 hydrocarbons – gasoline range organics (TPH GRO), and TPH – diesel range organics (TPH DRO) using EPA methods 8260D, 8260B/C, and 8015C. 4.0 RESULTS 4.1 Depth to Water and Flow Direction On February 3, 2025, the depth to groundwater ranged from 8.85 to 9.72 feet below top-of- casing (TOC) (Table 1). Figure 1 depicts a groundwater contour map for the project site on the same date. Based on the measured groundwater elevations, the groundwater flow direction continues to be east-southeast. 4.2 Groundwater Analytical Results Four monitoring wells were purged and sampled on February 3, 2025. The groundwater analytical results presented on Table 1 are compared with Initial Screening Levels (ISLs) and Tier 1 Levels (DERR, 2005). Two of the four monitoring wells sampled exceeded the ISL for benzene. The highest benzene concentration detected in groundwater was 0.259 milligrams-per-liter (mg/L) at MW-1. One of the four monitoring wells sampled exceeded the ISL for TPH GRO. The highest TPH GRO concentration detected in groundwater was 1.67 mg/L at MW-1. No petroleum hydrocarbons were detected in the groundwater samples collected from MW-2 and MW-4 (Table 1; Figure 1). The laboratory analytical reports for the February 2025 groundwater monitoring event are provided as an attachment. 5.0 CONCLUSIONS Based on field observations and the February 2025 groundwater analytical results, the following conclusions are presented: • Depth to groundwater ranged from approximately 8.8 to 9.7 feet below top of well casing. • The groundwater flow direction continues to be east-southeast. • The ISL for benzene was exceeded at two well locations. The highest benzene concentration detected in groundwater was 0.259 mg/L at MW-1. • The ISL for TPH GRO was exceeded at one well location. The highest TPH concentration detected in groundwater was 1.67 mg/L TPH GRO at MW-1. Groundwater Monitoring Report – February 2025 Express Food and Fuel (Jacksons #5825) 850 West Hwy 40, Vernal, UT Facility ID #9000165, Release Site OAQ Underwood Environmental Consulting, Inc. 3 • No petroleum hydrocarbons were detected in groundwater at MW-2 and MW-4. The next groundwater monitoring event approved under Work Plan OAQ-04 is tentatively scheduled for May 2025. 6.0 LIMITATIONS Our services consist of professional opinions from a state-certified consultant, made in general accordance with locally accepted environmental practices at the time of execution. Environmental samples are obtained from specific locations, utilizing methodologies consistent with Utah Department of Environmental Quality regulations. UEC makes no guarantee, either expressed or implied, that the analytical results accurately represent subsurface conditions throughout the entire project site. Respectfully, Underwood Environmental Consulting, Inc. James A. McReel, P.G. L. Earl Underwood, P.G. Project Geologist, CC-0044 Sr. Geologist, CC-0018 Attachments: Table 1 Groundwater Monitoring Data Figure 1 Groundwater Contour Map – Feb. 3, 2025 Laboratory Analytical Reports Groundwater Monitoring Report – February 2025 Express Food and Fuel (Jacksons #5825) 850 West Hwy 40, Vernal, UT Facility ID #9000165, Release Site OAQ Underwood Environmental Consulting, Inc. 4 References Cited: DERR, 1996 Release Site EJMP, Premium/Amoco, 850 W. Highway 40, Vernal, Utah, Facility Identification No. 9000165: Utah Division of Environmental Response and Remediation, Salt Lake City, Utah, May 21, 1996. DERR, 2005 Utah LUST Program Screening Levels for Soil and Groundwater: Utah Division of Environmental Response and Remediation, Salt Lake City, Utah, November 1, 2005. UEC, 2021 Subsurface Investigation Report, Release OAQ, Fast Stop #1121 (Jacksons #5825), 850 West Highway 40, Vernal, Utah, Facility ID #9000165, Release Site OAQ: Underwood Environmental Consulting, Inc., Park City, Utah, December 20, 2021. Groundwater Monitoring Report - February 2025 Express Food and Fuel (Jacksons #5825) 850 West Hwy 40, Vernal, UT Facility ID 9000165, Release Site OAQ WELL/DATE DTW GW Elev.MTBE Benzene Toluene Ethyl- benzene Xylenes Naphth- alene TPH GRO TPH DROELEV.(feet)(feet)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) MW-1 10/21/21 7.60 91.02 <0.005 5.90 14.2 1.13 7.30 0.389 37.3 7.3 98.62 06/20/22 7.46 91.16 <0.005 3.45 3.05 0.587 2.76 0.150 15.0 3.9 09/16/22 7.37 91.25 <0.005 2.35 1.82 0.735 3.94 0.419 35.6 12.0 12/08/22 8.21 90.41 <0.005 1.00 0.225 0.216 0.533 0.038 11.8 1.6 04/01/23 6.36 92.26 <0.005 0.774 0.509 0.338 1.26 0.058 6.98 2.0 08/13/23 7.54 91.08 <0.005 0.920 0.442 0.681 1.86 0.221 25.2 6.2 11/21/23 8.45 90.17 <0.005 0.555 0.049 0.229 0.430 0.049 2.57 2.2 02/24/24 7.54 91.08 <0.005 1.21 0.678 0.616 2.90 0.123 9.48 3.1 05/23/24 7.78 90.84 <0.005 0.634 0.120 0.388 0.744 0.067 3.96 1.9 11/02/24 8.15 90.47 <0.075 1.17 0.616 0.814 2.88 0.214 5.69 2.4 02/03/25 9.21 89.41 <0.008 0.259 <0.012 0.238 0.112 0.022 1.67 <1.0 MW-2 10/21/21 7.24 91.17 <0.005 0.500 0.121 0.098 0.905 0.063 5.22 3.9 98.41 06/20/22 6.96 91.45 <0.005 0.410 0.056 0.152 0.238 0.028 1.53 1.4 09/16/22 6.94 91.47 <0.005 0.096 <0.012 0.050 0.027 0.024 0.786 <1.0 12/08/22 7.81 90.60 <0.005 0.418 0.257 0.165 0.300 0.013 4.68 <1.0 04/01/23 5.84 92.57 <0.005 0.272 0.114 0.136 0.215 <0.012 0.874 <1.0 08/13/23 7.13 91.28 <0.005 0.175 <0.012 0.033 <0.012 <0.012 0.761 1.2 11/21/23 8.05 90.36 <0.005 0.120 <0.012 0.012 <0.012 <0.012 <0.125 <1.0 02/24/24 7.13 91.28 <0.005 0.086 0.018 0.122 0.066 <0.012 0.504 2.2 05/23/24 7.42 90.99 <0.005 0.043 <0.012 0.028 <0.012 <0.012 <0.125 <1.0 11/02/24 7.80 90.61 <0.008 0.018 <0.012 0.012 <0.038 <0.012 <0.125 <1.0 02/03/25 8.85 89.56 <0.008 <0.005 <0.012 <0.012 <0.038 <0.012 <0.125 <1.0 MW-3 10/21/21 8.08 89.93 <0.005 2.14 4.93 0.712 4.50 0.199 17.4 3.9 98.01 06/20/22 7.90 90.11 <0.005 1.54 3.26 0.383 1.91 0.092 9.58 2.7 09/16/22 7.83 90.18 <0.005 0.122 0.324 0.066 0.306 0.026 2.58 <1.0 12/08/22 8.61 89.40 <0.005 0.119 0.350 0.076 0.349 <0.012 2.85 <1.0 04/01/23 6.63 91.38 <0.005 0.010 0.453 0.172 0.724 0.032 2.99 <1.0 08/13/23 8.00 90.01 <0.005 0.010 0.041 0.024 0.116 <0.012 0.323 <1.0 11/21/23 8.86 89.15 <0.005 <0.005 <0.012 0.023 0.084 <0.012 <0.125 <1.0 02/24/24 8.06 89.95 <0.005 <0.005 <0.012 0.027 0.101 <0.012 0.266 <1.0 05/23/24 8.29 89.72 <0.005 0.008 <0.012 0.038 0.157 <0.012 0.418 <1.0 11/02/24 8.63 89.38 <0.008 0.018 0.014 0.090 0.341 0.027 0.767 <1.0 02/03/25 9.72 88.29 <0.008 0.227 0.027 0.081 0.107 0.014 0.934 <1.0 Initial Screening Levels (1)0.2 0.005 1 0.7 10 0.7 1 1 Tier 1 Screening Criteria (1)0.2 0.3 3 4 10 0.7 10 10 continued next page TABLE 1 GROUNDWATER MONITORING DATA Underwood Environmental Consulting, Inc. Groundwater Monitoring Report - February 2025 Express Food and Fuel (Jacksons #5825) 850 West Hwy 40, Vernal, UT Facility ID 9000165, Release Site OAQ WELL/DATE DTW GW Elev.MTBE Benzene Toluene Ethyl- benzene Xylenes Naphth- alene TPH GRO TPH DROELEV.(feet)(feet)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) TABLE 1 GROUNDWATER MONITORING DATA MW-4 10/21/21 7.41 92.59 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 <1.0 100.00 06/20/22 7.27 92.73 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 <1.0 09/16/22 7.13 92.87 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 <1.0 12/08/22 8.24 91.76 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 <1.0 04/01/23 6.59 93.41 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 <1.0 08/13/23 7.48 92.52 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 <1.0 11/21/23 8.52 91.48 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 <1.0 02/24/24 7.64 92.36 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 <1.0 05/23/24 7.78 92.22 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 <1.0 11/02/24 8.15 91.85 <0.008 <0.005 <0.012 <0.012 <0.038 <0.012 <0.125 <1.0 02/03/25 9.12 90.88 <0.008 <0.005 <0.012 <0.012 <0.038 <0.012 <0.125 <1.0 Initial Screening Levels (1)0.2 0.005 1 0.7 10 0.7 1 1 Tier 1 Screening Criteria (1)0.2 0.3 3 4 10 0.7 10 10 Notes:Arbitrary datum of 100.00 feet established on site.MTBE = Methyl Tertiary Butyl Ether DTW = Depth to Water TPH GRO = Total Petroleum Hydrocarbons-Gasoline Range Organics FPT = Free Product Thickness TPH DRO = Total Petroleum Hydrocarbons-Diesel Range Organics GW Elev. = Groundwater Elevation < Indicates below given detection limit. Bold values are above Initial Screening Levels.(1) DERR, 2005 Highlighted,bold , values are above Tier 1 Screening Criteria. Underwood Environmental Consulting, Inc. LEGEND approx. scale in feet one inch ~ 40 feet 00 4020 Express Food and Fuel (Jacksons #5825) 850 West Highway 40 Vernal, Utah Facility ID # 9000165 Release Site OAQ NORTH W SD ? P P P P GG G W W C S E E E W P Natural Gas Water Line / Meter G W S (Utility Locations Approximate) Power or Electical SD Storm Drain CommunicationsC P Sanitary Sewer E ??? Main St West H w y 4 0 80 0 W e s t Express Food and Fuel US Postal Service Park Mtn.A m e r i c a C U Of f i c e Bu i l d i n g UL UL D Canopy Dispensers 5/6 FIGURE 1 GROUNDWATER CONTOUR MAP (Feb. 3, 2025) 2/26/25 MW-2 Monitoring Well B-1 Soil Boring 9 0 Groundwater Contour Line (contour interval = 0.5 ft) Groundwater Flow Direction89.56 Groundwater Elev. (ft) (B-1) B-2 MW-3 MW-1 MW-2 MW-4 89.41 89.56 88.29 90.88 L I C ENSED P R O F E SSION A L G E O L OGIST L I C ENSED P R O F E SSION A L G E O L OGIST JAMES A . McREEL JAMES A . McREEL 5420854-2250 The analyses presented on this report were performed in accordance with the National Environmental Laboratory Accreditation Program (NELAP) unless noted in the comments, flags, or case narrative. If the report is to be used for regulatory compliance, it should be presented in its entirety, and not be altered. Client Service Contact: 801.262.7299 Underwood Environmental Consulting Attn: James McReel 9475 North Silver Creek Road Park City, UT 84098 Work Order: 25B0136 Project: Jacksons #5825 Vernal 2/11/2025 Approved By: Mark Broadhead, Project Manager 9632 South 500 West Sandy, Utah 84070 Serving the Intermountain West since 1953 801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com Page 1 of 7 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Underwood Environmental Consulting James McReel 9475 North Silver Creek Road Park City, UT 84098 PO#: Receipt: Date Reported: Project Name: OAQ-04 2/4/25 12:04 @ 1.8 °C 2/11/2025 Jacksons #5825 Vernal Sample ID: MW-1 Lab ID: 25B0136-01Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 2/3/25 15:10 Preparation Date/Time Sampled By: James McReel Minimum Reporting Limit MethodResult MBTEXn mg/L 2/4/252/4/250.005 EPA 8260D/5030B0.259Benzene mg/L 2/4/252/4/250.012 EPA 8260D/5030B0.238Ethylbenzene mg/L J-LOW-L2/4/252/4/250.008 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE) mg/L 2/5/252/4/250.012 EPA 8260D/5030B0.022Naphthalene mg/L 2/4/252/4/250.012 EPA 8260D/5030BNDToluene mg/L 2/4/252/4/250.038 EPA 8260D/5030B0.112Xylenes, total Gasoline Range mg/L 2/5/252/4/250.125 EPA 8260B/C /5030A/[CALC]1.67Gasoline Range Organics Diesel Range mg/L 2/10/252/7/251.0 EPA 8015 CNDDiesel Range Organics Project Name: Jacksons #5825 Vernal CtF WO#: 25B0136 www.ChemtechFord.com Page 2 of 7Page 2 of 7 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Underwood Environmental Consulting James McReel 9475 North Silver Creek Road Park City, UT 84098 PO#: Receipt: Date Reported: Project Name: OAQ-04 2/4/25 12:04 @ 1.8 °C 2/11/2025 Jacksons #5825 Vernal Sample ID: MW-2 Lab ID: 25B0136-02Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 2/3/25 14:40 Preparation Date/Time Sampled By: James McReel Minimum Reporting Limit MethodResult MBTEXn mg/L 2/4/252/4/250.005 EPA 8260D/5030BNDBenzene mg/L 2/4/252/4/250.012 EPA 8260D/5030BNDEthylbenzene mg/L J-LOW-L2/4/252/4/250.008 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE) mg/L 2/4/252/4/250.012 EPA 8260D/5030BNDNaphthalene mg/L 2/4/252/4/250.012 EPA 8260D/5030BNDToluene mg/L 2/4/252/4/250.038 EPA 8260D/5030BNDXylenes, total Gasoline Range mg/L 2/4/252/4/250.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics Diesel Range mg/L 2/10/252/7/251.0 EPA 8015 CNDDiesel Range Organics Project Name: Jacksons #5825 Vernal CtF WO#: 25B0136 www.ChemtechFord.com Page 3 of 7Page 3 of 7 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Underwood Environmental Consulting James McReel 9475 North Silver Creek Road Park City, UT 84098 PO#: Receipt: Date Reported: Project Name: OAQ-04 2/4/25 12:04 @ 1.8 °C 2/11/2025 Jacksons #5825 Vernal Sample ID: MW-3 Lab ID: 25B0136-03Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 2/3/25 15:30 Preparation Date/Time Sampled By: James McReel Minimum Reporting Limit MethodResult MBTEXn mg/L 2/4/252/4/250.005 EPA 8260D/5030B0.227Benzene mg/L 2/4/252/4/250.012 EPA 8260D/5030B0.081Ethylbenzene mg/L J-LOW-L2/4/252/4/250.008 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE) mg/L 2/5/252/4/250.012 EPA 8260D/5030B0.014Naphthalene mg/L 2/4/252/4/250.012 EPA 8260D/5030B0.027Toluene mg/L 2/4/252/4/250.038 EPA 8260D/5030B0.107Xylenes, total Gasoline Range mg/L 2/5/252/4/250.125 EPA 8260B/C /5030A/[CALC]0.934Gasoline Range Organics Diesel Range mg/L 2/10/252/7/251.0 EPA 8015 CNDDiesel Range Organics Project Name: Jacksons #5825 Vernal CtF WO#: 25B0136 www.ChemtechFord.com Page 4 of 7Page 4 of 7 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Underwood Environmental Consulting James McReel 9475 North Silver Creek Road Park City, UT 84098 PO#: Receipt: Date Reported: Project Name: OAQ-04 2/4/25 12:04 @ 1.8 °C 2/11/2025 Jacksons #5825 Vernal Sample ID: MW-4 Lab ID: 25B0136-04Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 2/3/25 14:20 Preparation Date/Time Sampled By: James McReel Minimum Reporting Limit MethodResult MBTEXn mg/L 2/4/252/4/250.005 EPA 8260D/5030BNDBenzene mg/L 2/4/252/4/250.012 EPA 8260D/5030BNDEthylbenzene mg/L J-LOW-L2/4/252/4/250.008 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE) mg/L 2/4/252/4/250.012 EPA 8260D/5030BNDNaphthalene mg/L 2/4/252/4/250.012 EPA 8260D/5030BNDToluene mg/L 2/4/252/4/250.038 EPA 8260D/5030BNDXylenes, total Gasoline Range mg/L 2/4/252/4/250.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics Diesel Range mg/L 2/10/252/7/251.0 EPA 8015 CNDDiesel Range Organics Project Name: Jacksons #5825 Vernal CtF WO#: 25B0136 www.ChemtechFord.com Page 5 of 7Page 5 of 7 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Underwood Environmental Consulting James McReel 9475 North Silver Creek Road Park City, UT 84098 PO#: Receipt: Date Reported: Project Name: OAQ-04 2/4/25 12:04 @ 1.8 °C 2/11/2025 Jacksons #5825 Vernal Report Footnotes Abbreviations ND = Not detected at the corresponding Minimum Reporting Limit (MRL). 1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million. 1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion. 1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion. On calculated parameters, there may be a slight difference between summing the rounded values shown on the report vs the unrounded values used in the calculation. Flag Descriptions J-LOW-L = Estimated low due to low recovery of LCS Project Name: Jacksons #5825 Vernal CtF WO#: 25B0136 www.ChemtechFord.com Page 6 of 7Page 6 of 7 Page 7 of 7