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HomeMy WebLinkAboutDERR-2024-013109Rockwell Solutions, Inc., 718 E. Bridger Lane, Elk Ridge, UT 84651 801-361-2930 rockwellutah@yahoo.com 1 Rockwell Solutions, Inc. 718 E Bridger Lane Elk Ridge, UT 84651 (801) 361-2930 December 14, 2024 Mrs. Andrea Johnson Jenkins Oil Co. PO Box 1356 Cedar City, UT 84721 Re: Subsurface Investigation Work Plan Addendum (OLF-1) Rally Stop #8, 10 E Center Street, Panguitch, Utah Facility ID: 6000053 Release ID: OLF Dear Mrs. Johnson: Rockwell Solutions, Inc. has completed a subsurface investigation at the above-referenced facility in accordance with State of Utah Division of Environmental Response and Remediation (DERR) guidelines. INTRODUCTION A release was reported from the premium gasoline underground storage tank (UST) at the site on August 5, 2024, after a tank tightness test confirmed a Veeder Root release alarm. It was estimated that approximately 250 gallons of gasoline were released. The tank was immediately emptied and taken out of service. The release was assigned code OLF. A subsurface investigation was requested by DERR to define the extent of contamination. SITE DESCRIPTION The site is an active gas station in Panguitch, Utah, with three underground storage tanks (USTs) and four dispensers. As can be seen on Figure 1, an addition to the convenience store building was constructed over the corner of the UST basin. Underground utilities were located by contacting Blue Stakes of Utah. Electric and communication lines to the building are overhead. The water line runs from the northwest corner of the property to the building. The natural gas and sewer laterals run north south along the east side of the property. METHODOLOGIES AND SITE ISSUES Drilling and Well Installation Direct Push Services was employed as the drilling contractor under the supervision of a Rockwell Solutions representative. On September 18, 2024, the investigation was attempted using direct push methodology, however the subsurface soils were too hard for penetration by the direct push rig. Attempts were made in different locations. Subsurface Investigation, Rally Stop #8, Panguitch, UT, Facility #6000053, Release OLF Rockwell Solutions, Inc., 718 E. Bridger Lane, Elk Ridge, UT 84651 801-361-2930 rockwellutah@yahoo.com 2 On October 21-23, 2024, drilling was successful using an odex rig. However, depth to groundwater was much deeper than anticipated. Using the available time and materials, three borings were advanced to forty feet deep, the maximum possible at that time. The sampling equipment on the rig broke while drilling the first boring and no further soil samples could be collected. Monitoring wells were installed in each of the three borings to forty feet with twenty feet of 0.010- inch screen. The wells contain a silica sand filter around the screen and a bentonite seal above the screen. A flush grade well protector was installed at the surface. The top-of-casing elevation at each well was measured to the nearest 0.01 foot using a transit level. Monitoring well construction diagrams are attached. On November 18-19, three additional monitoring wells were installed using odex methodology to forty-two feet deep with twenty feet of screen. Split spoon samples were collected approximately every ten feet. A portion of the soil core was put in a zip-lock baggie to allow hydrocarbons to volatilize. The air in the zip lock baggie was then screened with a photoionization detector (PID). Samples were selected and submitted for laboratory analysis of MTBE, benzene, toluene, ethylbenzene, xylenes, naphthalene (MBTEXN) and total petroleum hydrocarbons-gasoline range organics (TPH-GRO) using EPA Method 8260 and TPH-diesel range organics (TPH-DRO) using EPA Method 8015. Groundwater was present at approximately thirty-five feet below grade (bg) on October 22, 2024, and thirty-seven feet bg on November 18, 2024. The new monitoring wells were developed and groundwater samples were collected. Groundwater samples were submitted for laboratory analysis of MBTEXN and TPH-GRO using EPA Method 8260 and TPH-DRO using EPA Method 8015. Sub-slab Vapor Point Installation and Sampling On September 18, 2024, sub-slab vapor sampling points were installed by drilling a hole through the concrete floor in the southwest corner of the c-store building near the USTs and in the east side of the c-store building. See Figure 1. A sealed, barbed vapor point was installed in the hole. A small section of pipe was placed around the vapor pin and above the hole and filled with water. No water escaped through the hole or around the point, indicating no leakage. Sub-slab vapor samples were collected through the vapor point using a one-liter SUMMA canister. The samples were analyzed for MBTEXN, total petroleum hydrocarbons (TPH), and other volatile organic compounds (VOCs) using EPA Method TO-15 by ALS Laboratories. RESULTS Soil Type Soil type was evaluated during the subsurface investigation by field analysis of soil cuttings and samples from the split spoon. The native soil at the site consists of sandy gravel or gravelly sand from the ground surface to at least forty-two feet bg. Boring logs are attached. Soil Analytical Results Table 1 lists the analytical results of the soil samples collected during the subsurface investigation. Hydrocarbon concentrations were not detected or were below Initial Screening Levels (ISLs) in all Subsurface Investigation, Rally Stop #8, Panguitch, UT, Facility #6000053, Release OLF Rockwell Solutions, Inc., 718 E. Bridger Lane, Elk Ridge, UT 84651 801-361-2930 rockwellutah@yahoo.com 3 samples. The laboratory analytical reports and chain-of-custody records for soil samples collected during the subsurface investigation are attached. PID readings are shown on the boring logs. Groundwater Analytical Results Table 2 lists the analytical results of the groundwater samples collected during the subsurface investigation. Hydrocarbon concentrations exceeding Tier 1 levels were detected in monitoring wells MW-2 and MW-5 and concentrations exceeding ISLs were also detected in wells MW-1 and MW-3. Figure 2 shows approximate groundwater contamination areas. The laboratory analytical reports and chain-of-custody records for groundwater samples collected during the subsurface investigation are attached. Groundwater Flow Direction Groundwater elevation measurements at the six monitoring wells indicate groundwater flow is to the east-northeast. Figure 3 is a groundwater contour map. Sub-slab Vapor Results Sub-slab vapor MBTEXN and TPH analytical results are shown on Table 3. Minor concentrations were detected in the Rally 8 West sample near the USTs. The laboratory analytical report for the vapor samples is attached. TIER 1 CRITERIA Land Use The site is located in a mixed commercial and residential area. The estimated ISL contaminant plume apparently extends slighlty onto the residence located immediately east of the property. Utilities Locations of buried utility lines in the investigation area were discussed previously. The exact depths to the utility lines are not known, but are estimated to be approximately two to three feet. Receptors A well search of the Water Rights database indicates there are no water wells located within 500 feet of the site. CONCLUSIONS AND RECOMMENDATIONS Based on the subsurface investigation, the coarse-grained soil allowed the release to migrate vertically downward below the release area without significant horizontal migration. Contaminated soil likely exists below the USTs only. The maximum concentrations cannot be determined at this time. Contaminated soil can be accessed when the tanks are removed in 2025. Groundwater contamination extends east-northeast from the UST basin to the east property line and may extend slightly onto the adjacent property. Due to the depth of contaminated groundwater below the building and to the soil contamination being apparently limited to the tank basin area, vapor concentrations below the building are low. Subsurface Investigation, Rally Stop #8, Panguitch, UT, Facility #6000053, Release OLF Rockwell Solutions, Inc., 718 E. Bridger Lane, Elk Ridge, UT 84651 801-361-2930 rockwellutah@yahoo.com 4 The extent of contamination has been defined. Corrective actions can be undertaken to address current contamination and additional corrective action will be undertaken when the USTs are removed. Please feel free to contact me should you have any questions or concerns at 801-361-2930. Sincerely, David S Hansen Rockwell Solutions, Inc. Certified UST Consultant CC130 cc: Alex Thompson, DERR MW-3 Figure 1 Site Map Rally Stop #8 10 E Center Street Panguitch, UtahNORTH Approx. scale in feet 00 30 teWar Gas Sewer tElecric Teehnlpoe Srmato Drin Monitoring Well MW-4 MW-5 MW-6 Monitoring Well MW-2 MW-1 teWar Gas Sewer S rtom Drain Rally 8 West Rally 8 East Sub-slab Vapor Point MW-3 0.020 Figure 2 Dissolved Benzene Map October-November 2024 Rally Stop #8 10 E Center Street Panguitch, UtahNORTH Approx. scale in feet 00 30 teWar Gas Sewer tElecric Teehnlpoe Srmato Drin Monitoring Well MW-4 <0.005 MW-5 0.410 MW-6 <0.005 MW-1 62.94 Monitoring Well Benzene Concentration (mg/L) Tier 1 Contour (0.30 mg/L) MW-2 0.476 MW-1 0.007 ISL Contour (0.005 mg/L) MW-1 62.94 MW-3 62.46 MW-2 62.71 Figure 3 Groundwater Contour Map 11/20/24 Rally Stop #8 10 E Center Street Panguitch, UtahNORTH Approx. scale in feet 00 30 teWar Gas Sewer tElecric Teehnlpoe Srmato Drin Monitoring Well MW-4 62.58 MW-5 62.52 MW-6 62.41 MW-1 62.94 Monitoring Well Groundwater Elevation Groundwater Elevation Contour 2 -6 .7- 6-2.9- -62.8- - 2.6- 6 - 2 - 6 .5 Sample Depth (feet) Date Benzene (mg/kg) Toluene (mg/kg) Ethyl- benzene (mg/kg) Xylenes (mg/kg) Naph- thalene (mg/kg) MTBE (mg/kg) TPH-GRO (mg/kg) TPH-DRO (mg/kg) 0.2 9 5 142 51 0.3 150 500 0.9 25 23 142 51 0.3 1,500 5,000 MW-1, 25-26' 25-26 10/22/2024 <0.01 <0.03 <0.03 <0.08 <0.03 <0.02 <0.278 <56 MW-1, 35-36' 35-36 10/22/2024 <0.01 <0.03 <0.03 <0.08 <0.03 <0.02 <0.271 <56 MW-4, 37' 37 11/18/2024 <0.01 <0.03 <0.03 <0.08 <0.03 <0.02 <0.278 <56 MW-4, 44' 44 11/18/2024 <0.01 <0.03 <0.03 <0.08 <0.03 <0.02 <0.253 <58 MW-5, 27' 27 11/19/2024 <0.01 <0.03 <0.03 <0.08 <0.03 <0.02 <0.274 <58 MW-5, 37' 37 11/19/2024 <0.008 <0.02 <0.02 <0.06 0.02 <0.01 <0.210 <56 MW-5, 44' 44 11/19/2024 <0.01 <0.03 <0.03 <0.08 <0.03 <0.02 1.49 <62 MW-6, 35' 35 11/19/2024 <0.01 <0.03 <0.03 <0.08 <0.03 <0.02 <0.256 <55 MBTEXN and TPH-GRO analyzed by EPA Method 8260. TPH-DRO analyzed by EPA Method 8015 Note: Due to an equipment malfunction, the drill rig was unable to collect soil samples at MW-2 or MW-3 RBCA Tier 1 Screening Levels Table 1 Initial Screening Levels Rally Stop #8 (UST No. 6000053) 10 E Center Street, Panguitch, Utah Soil Sample Results Page 1 of 3 Sample TOC (ft) Date Depth to Water (ft) Groundwater Elevation (ft) Benzene (mg/L) Toluene (mg/L) Ethyl- benzene (mg/L) Xylenes (mg/L) Naph- thalene (mg/L) MTBE (mg/L) TPH- GRO (mg/L) TPH- DRO (mg/L) 0.005 1 0.7 10 0.7 0.2 1 1 0.3 3 4 10 0.7 0.2 10 10 MW-1 10/24/2024 35.25 64.75 0.007 0.031 <0.012 <0.038 <0.012 <0.008 <0.125 <1 100.00 11/20/2024 37.06 62.94 MW-2 10/24/2024 35.52 64.54 0.476 1.76 0.056 0.400 <0.012 <0.008 3.17 <1 100.06 11/20/2024 37.35 62.71 MW-3 10/24/2024 35.15 64.23 0.020 <0.012 <0.012 <0.038 <0.012 <0.008 <0.125 <1 99.38 11/20/2024 36.92 62.46 MW-4 11/19/2024 37.30 62.58 <0.005 <0.012 <0.012 <0.038 <0.012 <0.008 <0.125 <1 99.88 MW-5 11/19/2024 37.46 62.52 0.41 3.86 0.266 1.31 <0.125 <0.075 9.99 3.5 99.98 MW-6 11/20/2024 37.62 62.41 <0.005 <0.012 <0.012 <0.038 <0.012 <0.008 <0.125 <1 100.03 MBTEXN and TPH-GRO analyzed by EPA Method 8260 TPH-DRO analyzed by EPA Method 8015 mg/L = milligrams per liter, which approximates parts per million. Pink shading = Exceeds Initial Screening Level Yellow shading = exceeds Tier 1 Level Table 2 Groundwater Analytical Results Rally Stop #8 (UST No. 6000053) 10 E Center Street, Panguitch, Utah RBCA Tier 1 Screening Levels Initial Screening Levels Sampling Location Date MTBE (ug/m3) Benzene (ug/m3) Toluene (ug/m3) Ethyl- benzene (ug/m3) Total Xylenes (ug/m3) Naph- thalene (ug/m3) TPH (ug/m3) Rally 8 East 9/18/24 <1.8 <1.6 <1.9 <2.2 <6.5 <10 16 Rally 8 West 9/18/24 <1.8 <1.6 4.40 <2.2 16.1 <10 140 TPH = Total petroleum hydrocarbons ug/m3 = micrograms per cubic meter Table 3 Sub-slab Vapor Point Analytical Results Rally Stop #8 (UST No. 6000053) 10 E Center Street, Panguitch, Utah 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 Rockwell Solutions, Inc Attn: Dave Hansen 718 East Bridger Lane Elk Ridge, UT 84651 Work Order: 24J2287 Project: Rally Stop #8 11/1/2024 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 8 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 Rockwell Solutions, Inc Dave Hansen 718 East Bridger Lane Elk Ridge, UT 84651 PO#: Receipt: Date Reported: Project Name: 10/25/24 14:39 @ 2.1 °C 11/1/2024 Rally Stop #8 Sample ID: MW- 1, 25-26' Lab ID: 24J2287-01Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 10/22/24 10:35 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult Inorganic %10/29/2410/29/240.1 CTF800089.1Total Solids MBTEXn mg/kg dry 10/29/2410/29/240.01 EPA 8260D/5030BNDBenzene mg/kg dry 10/29/2410/29/240.03 EPA 8260D/5030BNDEthylbenzene mg/kg dry J-LOW-C10/29/2410/29/240.02 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE) mg/kg dry 10/29/2410/29/240.03 EPA 8260D/5030BNDNaphthalene mg/kg dry 10/29/2410/29/240.03 EPA 8260D/5030BNDToluene mg/kg dry 10/29/2410/29/240.08 EPA 8260D/5030BNDXylenes, total Gasoline Range mg/kg dry 10/29/2410/29/240.278 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics Diesel Range mg/kg dry 10/30/2410/29/2456EPA 8015 CNDDiesel Range Organics Project Name: Rally Stop #8 CtF WO#: 24J2287 www.ChemtechFord.com Page 2 of 8Page 2 of 8 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 Rockwell Solutions, Inc Dave Hansen 718 East Bridger Lane Elk Ridge, UT 84651 PO#: Receipt: Date Reported: Project Name: 10/25/24 14:39 @ 2.1 °C 11/1/2024 Rally Stop #8 Sample ID: MW- 1, 35-36' Lab ID: 24J2287-02Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 10/22/24 11:30 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult Inorganic %10/29/2410/29/240.1 CTF800088.6Total Solids MBTEXn mg/kg dry 10/29/2410/29/240.01 EPA 8260D/5030BNDBenzene mg/kg dry 10/29/2410/29/240.03 EPA 8260D/5030BNDEthylbenzene mg/kg dry J-LOW-C10/29/2410/29/240.02 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE) mg/kg dry 10/29/2410/29/240.03 EPA 8260D/5030BNDNaphthalene mg/kg dry 10/29/2410/29/240.03 EPA 8260D/5030BNDToluene mg/kg dry 10/29/2410/29/240.08 EPA 8260D/5030BNDXylenes, total Gasoline Range mg/kg dry 10/29/2410/29/240.271 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics Diesel Range mg/kg dry 10/30/2410/29/2456EPA 8015 CNDDiesel Range Organics Project Name: Rally Stop #8 CtF WO#: 24J2287 www.ChemtechFord.com Page 3 of 8Page 3 of 8 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 Rockwell Solutions, Inc Dave Hansen 718 East Bridger Lane Elk Ridge, UT 84651 PO#: Receipt: Date Reported: Project Name: 10/25/24 14:39 @ 2.1 °C 11/1/2024 Rally Stop #8 Sample ID: MW- 1 Lab ID: 24J2287-03Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 10/24/24 11:50 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult MBTEXn mg/L 10/29/2410/29/240.005 EPA 8260D/5030B0.007Benzene mg/L 10/29/2410/29/240.012 EPA 8260D/5030BNDEthylbenzene mg/L 10/29/2410/29/240.008 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE) mg/L 10/29/2410/29/240.012 EPA 8260D/5030BNDNaphthalene mg/L 10/29/2410/29/240.012 EPA 8260D/5030B0.031Toluene mg/L 10/29/2410/29/240.038 EPA 8260D/5030BNDXylenes, total Gasoline Range mg/L 10/29/2410/29/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics Diesel Range mg/L 10/29/2410/29/241.0 EPA 8015 CNDDiesel Range Organics Project Name: Rally Stop #8 CtF WO#: 24J2287 www.ChemtechFord.com Page 4 of 8Page 4 of 8 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 Rockwell Solutions, Inc Dave Hansen 718 East Bridger Lane Elk Ridge, UT 84651 PO#: Receipt: Date Reported: Project Name: 10/25/24 14:39 @ 2.1 °C 11/1/2024 Rally Stop #8 Sample ID: MW- 2 Lab ID: 24J2287-04Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 10/24/24 12:00 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult MBTEXn mg/L 10/29/2410/29/240.005 EPA 8260D/5030B0.476Benzene mg/L 10/29/2410/29/240.012 EPA 8260D/5030B0.056Ethylbenzene mg/L 10/29/2410/29/240.008 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE) mg/L 10/29/2410/29/240.012 EPA 8260D/5030BNDNaphthalene mg/L 10/29/2410/29/240.125 EPA 8260D/5030B1.76Toluene mg/L 10/29/2410/29/240.038 EPA 8260D/5030B0.400Xylenes, total Gasoline Range mg/L 10/29/2410/29/240.125 EPA 8260B/C /5030A/[CALC]3.17Gasoline Range Organics Diesel Range mg/L 10/29/2410/29/241.0 EPA 8015 CNDDiesel Range Organics Project Name: Rally Stop #8 CtF WO#: 24J2287 www.ChemtechFord.com Page 5 of 8Page 5 of 8 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 Rockwell Solutions, Inc Dave Hansen 718 East Bridger Lane Elk Ridge, UT 84651 PO#: Receipt: Date Reported: Project Name: 10/25/24 14:39 @ 2.1 °C 11/1/2024 Rally Stop #8 Sample ID: MW- 3 Lab ID: 24J2287-05Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 10/24/24 11:40 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult MBTEXn mg/L 10/29/2410/29/240.005 EPA 8260D/5030B0.020Benzene mg/L 10/29/2410/29/240.012 EPA 8260D/5030BNDEthylbenzene mg/L 10/29/2410/29/240.008 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE) mg/L 10/29/2410/29/240.012 EPA 8260D/5030BNDNaphthalene mg/L 10/29/2410/29/240.012 EPA 8260D/5030BNDToluene mg/L 10/29/2410/29/240.038 EPA 8260D/5030BNDXylenes, total Gasoline Range mg/L 10/29/2410/29/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics Diesel Range mg/L 10/29/2410/29/241.0 EPA 8015 CNDDiesel Range Organics Project Name: Rally Stop #8 CtF WO#: 24J2287 www.ChemtechFord.com Page 6 of 8Page 6 of 8 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 Rockwell Solutions, Inc Dave Hansen 718 East Bridger Lane Elk Ridge, UT 84651 PO#: Receipt: Date Reported: Project Name: 10/25/24 14:39 @ 2.1 °C 11/1/2024 Rally Stop #8 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-C = Estimated low due to low recovery of CCV Project Name: Rally Stop #8 CtF WO#: 24J2287 www.ChemtechFord.com Page 7 of 8Page 7 of 8 Page 8 of 8 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 Rockwell Solutions, Inc Attn: Dave Hansen 718 East Bridger Lane Elk Ridge, UT 84651 Work Order: 24K1832 Project: Rally Stop #8 12/2/2024 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 12 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 Rockwell Solutions, Inc Dave Hansen 718 East Bridger Lane Elk Ridge, UT 84651 PO#: Receipt: Date Reported: Project Name: 11/22/24 11:54 @ 4.2 °C 12/2/2024 Rally Stop #8 Sample ID: MW-4, 37' Lab ID: 24K1832-01Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 11/18/24 16:30 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult Inorganic %11/25/2411/25/240.1 CTF800089.1Total Solids MBTEXn mg/kg dry 11/22/2411/22/240.01 EPA 8260D/5030BNDBenzene mg/kg dry 11/22/2411/22/240.03 EPA 8260D/5030BNDEthylbenzene mg/kg dry 11/22/2411/22/240.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE) mg/kg dry 11/22/2411/22/240.03 EPA 8260D/5030BNDNaphthalene mg/kg dry 11/22/2411/22/240.03 EPA 8260D/5030BNDToluene mg/kg dry 11/22/2411/22/240.08 EPA 8260D/5030BNDXylenes, total Gasoline Range mg/kg dry 11/22/2411/22/240.278 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics Diesel Range mg/kg dry 11/22/2411/22/2456EPA 8015 CNDDiesel Range Organics Project Name: Rally Stop #8 CtF WO#: 24K1832 www.ChemtechFord.com Page 2 of 12Page 2 of 12 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 Rockwell Solutions, Inc Dave Hansen 718 East Bridger Lane Elk Ridge, UT 84651 PO#: Receipt: Date Reported: Project Name: 11/22/24 11:54 @ 4.2 °C 12/2/2024 Rally Stop #8 Sample ID: MW-4, 44' Lab ID: 24K1832-02Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 11/18/24 17:40 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult Inorganic %11/25/2411/25/240.1 CTF800086.8Total Solids MBTEXn mg/kg dry 11/22/2411/22/240.01 EPA 8260D/5030BNDBenzene mg/kg dry 11/22/2411/22/240.03 EPA 8260D/5030BNDEthylbenzene mg/kg dry 11/22/2411/22/240.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE) mg/kg dry 11/22/2411/22/240.03 EPA 8260D/5030BNDNaphthalene mg/kg dry 11/22/2411/22/240.03 EPA 8260D/5030BNDToluene mg/kg dry 11/22/2411/22/240.08 EPA 8260D/5030BNDXylenes, total Gasoline Range mg/kg dry 11/22/2411/22/240.253 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics Diesel Range mg/kg dry 11/22/2411/22/2458EPA 8015 CNDDiesel Range Organics Project Name: Rally Stop #8 CtF WO#: 24K1832 www.ChemtechFord.com Page 3 of 12Page 3 of 12 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 Rockwell Solutions, Inc Dave Hansen 718 East Bridger Lane Elk Ridge, UT 84651 PO#: Receipt: Date Reported: Project Name: 11/22/24 11:54 @ 4.2 °C 12/2/2024 Rally Stop #8 Sample ID: MW-5, 27' Lab ID: 24K1832-03Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 11/19/24 11:35 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult Inorganic %11/25/2411/25/240.1 CTF800085.9Total Solids MBTEXn mg/kg dry 11/22/2411/22/240.01 EPA 8260D/5030BNDBenzene mg/kg dry 11/22/2411/22/240.03 EPA 8260D/5030BNDEthylbenzene mg/kg dry 11/22/2411/22/240.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE) mg/kg dry 11/22/2411/22/240.03 EPA 8260D/5030BNDNaphthalene mg/kg dry 11/22/2411/22/240.03 EPA 8260D/5030BNDToluene mg/kg dry 11/22/2411/22/240.08 EPA 8260D/5030BNDXylenes, total Gasoline Range mg/kg dry 11/22/2411/22/240.274 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics Diesel Range mg/kg dry 11/22/2411/22/2458EPA 8015 CNDDiesel Range Organics Project Name: Rally Stop #8 CtF WO#: 24K1832 www.ChemtechFord.com Page 4 of 12Page 4 of 12 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 Rockwell Solutions, Inc Dave Hansen 718 East Bridger Lane Elk Ridge, UT 84651 PO#: Receipt: Date Reported: Project Name: 11/22/24 11:54 @ 4.2 °C 12/2/2024 Rally Stop #8 Sample ID: MW-5, 37' Lab ID: 24K1832-04Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 11/19/24 13:20 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult Inorganic %11/25/2411/25/240.1 CTF800088.7Total Solids MBTEXn mg/kg dry 11/22/2411/22/240.008 EPA 8260D/5030BNDBenzene mg/kg dry 11/22/2411/22/240.02 EPA 8260D/5030BNDEthylbenzene mg/kg dry 11/22/2411/22/240.01 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE) mg/kg dry 11/22/2411/22/240.02 EPA 8260D/5030B0.02Naphthalene mg/kg dry 11/22/2411/22/240.02 EPA 8260D/5030BNDToluene mg/kg dry 11/22/2411/22/240.06 EPA 8260D/5030BNDXylenes, total Gasoline Range mg/kg dry 11/22/2411/22/240.210 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics Diesel Range mg/kg dry 11/22/2411/22/2456EPA 8015 CNDDiesel Range Organics Project Name: Rally Stop #8 CtF WO#: 24K1832 www.ChemtechFord.com Page 5 of 12Page 5 of 12 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 Rockwell Solutions, Inc Dave Hansen 718 East Bridger Lane Elk Ridge, UT 84651 PO#: Receipt: Date Reported: Project Name: 11/22/24 11:54 @ 4.2 °C 12/2/2024 Rally Stop #8 Sample ID: MW-5, 44' Lab ID: 24K1832-05Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 11/19/24 14:30 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult Inorganic %11/25/2411/25/240.1 CTF800081.2Total Solids MBTEXn mg/kg dry 11/22/2411/22/240.01 EPA 8260D/5030BNDBenzene mg/kg dry 11/22/2411/22/240.03 EPA 8260D/5030BNDEthylbenzene mg/kg dry 11/22/2411/22/240.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE) mg/kg dry 11/22/2411/22/240.03 EPA 8260D/5030BNDNaphthalene mg/kg dry 11/22/2411/22/240.03 EPA 8260D/5030BNDToluene mg/kg dry 11/22/2411/22/240.08 EPA 8260D/5030BNDXylenes, total Gasoline Range mg/kg dry 11/22/2411/22/240.270 EPA 8260B/C 5035A/[CALC]1.49Gasoline Range Organics Diesel Range mg/kg dry 11/22/2411/22/2462EPA 8015 CNDDiesel Range Organics Project Name: Rally Stop #8 CtF WO#: 24K1832 www.ChemtechFord.com Page 6 of 12Page 6 of 12 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 Rockwell Solutions, Inc Dave Hansen 718 East Bridger Lane Elk Ridge, UT 84651 PO#: Receipt: Date Reported: Project Name: 11/22/24 11:54 @ 4.2 °C 12/2/2024 Rally Stop #8 Sample ID: MW-6, 35' Lab ID: 24K1832-06Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 11/19/24 20:40 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult Inorganic %11/25/2411/25/240.1 CTF800090.5Total Solids MBTEXn mg/kg dry 11/22/2411/22/240.01 EPA 8260D/5030BNDBenzene mg/kg dry 11/22/2411/22/240.03 EPA 8260D/5030BNDEthylbenzene mg/kg dry 11/22/2411/22/240.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE) mg/kg dry 11/22/2411/22/240.03 EPA 8260D/5030BNDNaphthalene mg/kg dry 11/22/2411/22/240.03 EPA 8260D/5030BNDToluene mg/kg dry 11/22/2411/22/240.08 EPA 8260D/5030BNDXylenes, total Gasoline Range mg/kg dry 11/22/2411/22/240.256 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics Diesel Range mg/kg dry 11/22/2411/22/2455EPA 8015 CNDDiesel Range Organics Project Name: Rally Stop #8 CtF WO#: 24K1832 www.ChemtechFord.com Page 7 of 12Page 7 of 12 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 Rockwell Solutions, Inc Dave Hansen 718 East Bridger Lane Elk Ridge, UT 84651 PO#: Receipt: Date Reported: Project Name: 11/22/24 11:54 @ 4.2 °C 12/2/2024 Rally Stop #8 Sample ID: MW-4 Lab ID: 24K1832-07Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 11/19/24 19:15 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult MBTEXn mg/L 11/26/2411/26/240.005 EPA 8260D/5030BNDBenzene mg/L 11/26/2411/26/240.012 EPA 8260D/5030BNDEthylbenzene mg/L J-LOW-C11/26/2411/26/240.008 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE) mg/L 11/26/2411/26/240.012 EPA 8260D/5030BNDNaphthalene mg/L 11/26/2411/26/240.012 EPA 8260D/5030BNDToluene mg/L 11/26/2411/26/240.038 EPA 8260D/5030BNDXylenes, total Gasoline Range mg/L 11/26/2411/26/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics Diesel Range mg/L 11/25/2411/25/241.0 EPA 8015 CNDDiesel Range Organics Project Name: Rally Stop #8 CtF WO#: 24K1832 www.ChemtechFord.com Page 8 of 12Page 8 of 12 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 Rockwell Solutions, Inc Dave Hansen 718 East Bridger Lane Elk Ridge, UT 84651 PO#: Receipt: Date Reported: Project Name: 11/22/24 11:54 @ 4.2 °C 12/2/2024 Rally Stop #8 Sample ID: MW-5 Lab ID: 24K1832-08Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 11/19/24 19:30 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult MBTEXn mg/L 11/25/2411/25/240.050 EPA 8260D/5030B0.410Benzene mg/L 11/25/2411/25/240.125 EPA 8260D/5030B0.266Ethylbenzene mg/L 11/25/2411/25/240.075 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE) mg/L 11/25/2411/25/240.125 EPA 8260D/5030BNDNaphthalene mg/L 11/25/2411/25/240.125 EPA 8260D/5030B3.86Toluene mg/L 11/25/2411/25/240.375 EPA 8260D/5030B1.31Xylenes, total Gasoline Range mg/L 11/25/2411/25/241.25 EPA 8260B/C /5030A/[CALC]9.99Gasoline Range Organics Diesel Range mg/L 11/25/2411/25/241.0 EPA 8015 C3.5Diesel Range Organics Project Name: Rally Stop #8 CtF WO#: 24K1832 www.ChemtechFord.com Page 9 of 12Page 9 of 12 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 Rockwell Solutions, Inc Dave Hansen 718 East Bridger Lane Elk Ridge, UT 84651 PO#: Receipt: Date Reported: Project Name: 11/22/24 11:54 @ 4.2 °C 12/2/2024 Rally Stop #8 Sample ID: MW-6 Lab ID: 24K1832-09Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 11/20/24 7:15 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult MBTEXn mg/L 11/26/2411/26/240.005 EPA 8260D/5030BNDBenzene mg/L 11/26/2411/26/240.012 EPA 8260D/5030BNDEthylbenzene mg/L J-LOW-C11/26/2411/26/240.008 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE) mg/L 11/26/2411/26/240.012 EPA 8260D/5030BNDNaphthalene mg/L 11/26/2411/26/240.012 EPA 8260D/5030BNDToluene mg/L 11/26/2411/26/240.038 EPA 8260D/5030BNDXylenes, total Gasoline Range mg/L 11/26/2411/26/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics Diesel Range mg/L 11/25/2411/25/241.0 EPA 8015 CNDDiesel Range Organics Project Name: Rally Stop #8 CtF WO#: 24K1832 www.ChemtechFord.com Page 10 of 12Page 10 of 12 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 Rockwell Solutions, Inc Dave Hansen 718 East Bridger Lane Elk Ridge, UT 84651 PO#: Receipt: Date Reported: Project Name: 11/22/24 11:54 @ 4.2 °C 12/2/2024 Rally Stop #8 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-C = Estimated low due to low recovery of CCV Project Name: Rally Stop #8 CtF WO#: 24K1832 www.ChemtechFord.com Page 11 of 12Page 11 of 12 Page 12 of 12 ANALYTICAL REPORT David Hansen Rockwell Solutions, Inc. 718 E Bridger Lane Payson, UT 84651 Phone: E-mail: (801) 361-2930 rockwellutah@yahoo.com Report Date:September 30, 2024 34-2426778Workorder: Rally Stop #8 NAPurchase Order: Project ID: Project Manager Lisa M. Reid Sampling SiteReceive DateCollect DateLab IDClient Sample ID 2426778001 09/18/24Rally 8 East 09/23/24 Rally Stop #8 2426778002 09/18/24Rally 8 West 09/23/24 Rally Stop #8 Page 1 of 4 Mon, 09/30/24 2:01 PM ENVREP-V4.8 ADDRESS 960 West LeVoy Drive, Salt Lake City, Utah, 84123 USA PHONE FAX+1 801 266 7700 +1 801 268 9992 ALS GROUP USA, CORP.An ALS Limited Company ||WEB|http://www.alsglobal.com/slt ANALYTICAL REPORT Project Manager:Lisa M. Reid Client:Rockwell Solutions, Inc. Workorder:34-2426778 Analytical Results Sample ID:09/18/2024 09/23/20242426778001Lab ID: Collected: Received: Rally 8 East Rally Stop #8 Sampling Parameter:Air Volume 1 LMatrix: Media: Air Mini Summa Canister Sampling Site: Analysis:EPA TO-15, Air Analyzed:09/27/2024 17:43 Batch: Instrument ID: IVOA/6624 (HBN: 321392) 5975-JPreparation:Not Applicable Result (ppb)Analyte Result (ug/m³)RL (ppb)Dilution Qual Analysis Method - EPA TO-15 by IH-AN-014 1<1.6<0.50 0.50Benzene 1<1.9<0.50 0.50Toluene 1<2.2<0.50 0.50Ethyl benzene 1<4.3<1.0 1.0m,p-Xylene 1<2.2<0.50 0.50o-Xylene 1<1.8<0.50 0.50Methyl t-butyl ether 1<10<2.0 2.0Naphthalene J 1164.7 NATotal Petroleum Hydrocarbons J Sample ID:09/18/2024 09/23/20242426778002Lab ID: Collected: Received: Rally 8 West Rally Stop #8 Sampling Parameter:Air Volume 1 LMatrix: Media: Air Mini Summa Canister Sampling Site: Analysis:EPA TO-15, Air Analyzed:09/27/2024 18:25 Batch: Instrument ID: IVOA/6624 (HBN: 321392) 5975-JPreparation:Not Applicable Result (ppb)Analyte Result (ug/m³)RL (ppb)Dilution Qual Analysis Method - EPA TO-15 by IH-AN-014 1<1.6<0.50 0.50Benzene 14.41.2 0.50Toluene 1<2.2<0.50 0.50Ethyl benzene 1112.5 1.0m,p-Xylene 15.11.2 0.50o-Xylene 1<1.8<0.50 0.50Methyl t-butyl ether 1<10<2.0 2.0Naphthalene J 114038NATotal Petroleum Hydrocarbons J Comments Quality Control:EPA TO-15 by IH-AN-014 - (Batch: 321392) “Total Petroleum Hydrocarbons” is the sum of all peaks in the chromatogram with a 41 ion with the addition of the BTEX compounds and was quantitated against the 117 ion of the Internal Standard. Page 2 of 4 Mon, 09/30/24 2:01 PM ENVREP-V4.8 ANALYTICAL REPORT Project Manager:Lisa M. Reid Client:Rockwell Solutions, Inc. Workorder:34-2426778 Report Authorization Analyst Peer ReviewMethod (/S/ is an electronic signature that complies with 21 CFR Part 11) EPA TO-15 by IH-AN-014 (321392)/S/ Paul Kelly 09/30/2024 12:12 09/30/2024 13:44 /S/ Thomas J. Masoian Laboratory Contact Information (801) 266-7700 alslt.lab@ALSGlobal.com www.alsglobal.com/slt ALS Environmental 960 W Levoy Drive Salt Lake City, Utah 84123 Phone: Email: Web: General Lab Comments The results provided in this report relate only to the items tested. Samples were received in acceptable condition unless otherwise noted. The following was provided by the client: Sample ID, Collection Date, Sampling Location, Media Type, Sampling Parameter. Collection Date, Media Type, and Sampling Parameter can potentially affect the validity of the results. Samples have not been blank corrected unless otherwise noted. This test report shall not be reproduced, except in full, without written approval of ALS. ALS provides professional analytical services for all samples submitted. ALS is not in a position to interpret the data and assumes no responsibility for the quality of the samples submitted. All quality control samples processed with the samples in this report yielded acceptable results unless otherwise noted. ALS is accredited for specific fields of testing (scopes) in the following testing sectors. The quality system implemented at ALS conforms to accreditation requirements and is applied to all analytical testing performed by ALS. The following table lists testing sector, accreditation body, accreditation number and website. Please contact these accrediting bodies or your ALS project manager for the current scope of accreditation that applies to your analytical testing. Testing Sector Accreditation Body (Standard) Certificate Number Website Industrial Hygiene AIHA (ISO 17025 & AIHA IHLAP) 101574 http://www.aihaaccreditedlabs.org DOECAP-AP L22-62 http://www.pjlabs.com Washington C596 https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Lab oratory-Accreditation Dietary Supplements PJLA (ISO 17025) L22-61 http://www.pjlabs.com Page 3 of 4 Mon, 09/30/24 2:01 PM ENVREP-V4.8 ANALYTICAL REPORT Project Manager:Lisa M. Reid Client:Rockwell Solutions, Inc. Workorder:34-2426778 MDL = Method Detection Limit, a statistical estimate of method/media/instrument sensitivity. RL = Reporting Limit, a verified value of method/media/instrument sensitivity. CRDL = Contract Required Detection Limit Reg. Limit = Regulatory Limit. ND = Not Detected, testing result not detected above the MDL or RL. < Means this testing result is less than the numerical value. ** No result could be reported, see sample comments for details. U = Qualifier indicates that the analyte was not detected above the MDL. J = Qualifier Indicates that the analyte value is between the MDL and the RL. It is also used to indicate an estimated value for B = Qualifier indicates that the analyte was detected in the blank. E = Qualifier indicates that the analyte result exceeds calibration range. P = Qualifier indicates that the RPD between the two columns is greater than 40%. Result Symbol Definitions Qualifier Symbol Definitions tentatively identified compounds in mass spectrometry where a 1:1 response is assumed. Q = Qualifier indicates that the analyte was outside the limits in a lab QC sample. Page 4 of 4 Mon, 09/30/24 2:01 PM ENVREP-V4.8 SOIL BORING AND WELL CONSTRUCTION LOG BORING NO. EP ( FT D TH .) E SAMPL S BLOWS ON S PLAMER SAMPLE R INTE VAL e (fe t)DESCRIPTION / SOIL CLASSIFICATION GRAPHIC LOG AND WELL CONSTRUCTION DEPTH 00 PID MW-1 PROJECT: Rally Stop #8 Panguitch, Utah road box bentonite seal 10-20 silica sand .010" Screen LOCATION: 10 E Center Street DATE: 10/22/2024 40 20 35-37 End of Boring at 40 feet. Well set at 40’. 00 40 20 DRILLING METHOD ____________________________________________ SAMPLER TYPE _____________________________________________________ DRILLER / COMPANY _________________________________________ TOTAL DEPTH ____________ WATER DEPTH _______ BORING DIAMETER _________ CASING DIAMETER _________ CASING MATERIAL ____________ SLOT SIZE __________ SURFACE ELEV. ____________ TOP OF CASING ELEV. ___________ LOGGED BY _____________________________________________ ODEX Jaret, Direct Push 6” Split Spoon PVC2"0.010” Dave Hansen 40”35’ Gravelly Sand (GW), fine to coarse-grained, light brown, damp 15-17 010 10 0 93 86 0 30 30 20-22 10-12 25-27 Sandy Gravel (GW) with silt, poorly sorted, light brown, damp SOIL BORING AND WELL CONSTRUCTION LOG BORING NO. EP ( FT D TH .) E SAMPL S BLOWS ON S PLAMER SAMPLE R INTE VAL e (fe t)DESCRIPTION / SOIL CLASSIFICATION GRAPHIC LOG AND WELL CONSTRUCTION DEPTH 00 PID MW-2 PROJECT: Rally Stop #8 Panguitch, Utah Asphalt road box bentonite seal 10-20 silica sand .010" Screen LOCATION: 10 E Center Street DATE: 10/23/2024 40 20 End of Boring at 40 feet. Well set at 40’. 00 40 20 DRILLING METHOD ____________________________________________ SAMPLER TYPE _____________________________________________________ DRILLER / COMPANY _________________________________________ TOTAL DEPTH ____________ WATER DEPTH _______ BORING DIAMETER _________ CASING DIAMETER _________ CASING MATERIAL ____________ SLOT SIZE __________ SURFACE ELEV. ____________ TOP OF CASING ELEV. ___________ LOGGED BY _____________________________________________ ODEX Jaret, Direct Push 6”PVC2"0.010” Dave Hansen 40”35’ Cuttings 10 10 0 10930 30 Sandy Gravel (GW) with silt, poorly sorted, light brown, damp 15-17 CuttingsCuttings Split Spoon and Cuttings SOIL BORING AND WELL CONSTRUCTION LOG BORING NO. EP ( FT D TH .) E SAMPL S BLOWS ON S PLAMER SAMPLE R INTE VAL e (fe t)DESCRIPTION / SOIL CLASSIFICATION GRAPHIC LOG AND WELL CONSTRUCTION DEPTH 00 PID MW-3 PROJECT: Rally Stop #8 Panguitch, Utah Asphalt road box bentonite seal 10-20 silica sand .010" Screen LOCATION: 10 E Center Street DATE: 10/23/2024 40 20 End of Boring at 40 feet. Well set at 40’. 00 40 20 DRILLING METHOD ____________________________________________ SAMPLER TYPE _____________________________________________________ DRILLER / COMPANY _________________________________________ TOTAL DEPTH ____________ WATER DEPTH _______ BORING DIAMETER _________ CASING DIAMETER _________ CASING MATERIAL ____________ SLOT SIZE __________ SURFACE ELEV. ____________ TOP OF CASING ELEV. ___________ LOGGED BY _____________________________________________ ODEX Jaret, Direct Push 6” Cuttings PVC2"0.010” Dave Hansen 40”35’ Cuttings 10 10 0 30 30 Sandy Gravel (GW) with silt, poorly sorted, light brown, damp 0 0 Cuttings Cuttings SOIL BORING AND WELL CONSTRUCTION LOG BORING NO. EP ( FT D TH .) E SAMPL S BLOWS ON S PLAMER SAMPLE R INTE VAL e (fe t)DESCRIPTION / SOIL CLASSIFICATION GRAPHIC LOG AND WELL CONSTRUCTION DEPTH 00 PID MW-4 PROJECT: Rally Stop #8 Panguitch, Utah Asphalt road box bentonite seal 10-20 silica sand .010" Screen LOCATION: 10 E Center Street DATE: 11/18/2024 40 20 35-37 End of Boring at 42 feet. Well set at 42’ 00 40 20 DRILLING METHOD ____________________________________________ SAMPLER TYPE _____________________________________________________ DRILLER / COMPANY _________________________________________ TOTAL DEPTH ____________ WATER DEPTH _______ BORING DIAMETER _________ CASING DIAMETER _________ CASING MATERIAL ____________ SLOT SIZE __________ SURFACE ELEV. ____________ TOP OF CASING ELEV. ___________ LOGGED BY _____________________________________________ ODEX Conner, Direct Push 6” Split Spoon PVC2"0.010” Dave Hansen 42”35’ Gravelly Sand (GW), fine to coarse-grained, light brown, damp 15-17 0 10 10 0 0 30 30 42-44 25-27 Sandy Gravel (GW) with silt, poorly sorted, light brown, damp 0 SOIL BORING AND WELL CONSTRUCTION LOG BORING NO. EP ( FT D TH .) E SAMPL S BLOWS ON S PLAMER SAMPLE R INTE VAL e (fe t)DESCRIPTION / SOIL CLASSIFICATION GRAPHIC LOG AND WELL CONSTRUCTION DEPTH 00 PID MW-5 PROJECT: Rally Stop #8 Panguitch, Utah Asphalt road box bentonite seal 10-20 silica sand .010" Screen LOCATION: 10 E Center Street DATE: 11/19/2024 40 20 35-37 End of Boring at 42 feet. Well set at 42’ 00 40 20 DRILLING METHOD ____________________________________________ SAMPLER TYPE _____________________________________________________ DRILLER / COMPANY _________________________________________ TOTAL DEPTH ____________ WATER DEPTH _______ BORING DIAMETER _________ CASING DIAMETER _________ CASING MATERIAL ____________ SLOT SIZE __________ SURFACE ELEV. ____________ TOP OF CASING ELEV. ___________ LOGGED BY _____________________________________________ ODEX Conner, Direct Push 6” Split Spoon PVC2"0.010” Dave Hansen 42”35’ Gravelly Sand (GW), fine to coarse-grained, light brown, damp 15-17 6 10 10 6 193 30 30 42-44 25-27 Sandy Gravel (GW) with silt, poorly sorted, light brown, damp 346 SOIL BORING AND WELL CONSTRUCTION LOG BORING NO. EP ( FT D TH .) E SAMPL S BLOWS ON S PLAMER SAMPLE R INTE VAL e (fe t)DESCRIPTION / SOIL CLASSIFICATION GRAPHIC LOG AND WELL CONSTRUCTION DEPTH 00 PID MW-6 PROJECT: Rally Stop #8 Panguitch, Utah Asphalt road box bentonite seal 10-20 silica sand .010" Screen LOCATION: 10 E Center Street DATE: 11/19/2024 40 20 35-37 End of Boring at 42 feet. Well set at 42’ 00 40 20 DRILLING METHOD ____________________________________________ SAMPLER TYPE _____________________________________________________ DRILLER / COMPANY _________________________________________ TOTAL DEPTH ____________ WATER DEPTH _______ BORING DIAMETER _________ CASING DIAMETER _________ CASING MATERIAL ____________ SLOT SIZE __________ SURFACE ELEV. ____________ TOP OF CASING ELEV. ___________ LOGGED BY _____________________________________________ ODEX Conner, Direct Push 6” Split Spoon PVC2"0.010” Dave Hansen 42”35’ Gravelly Sand (GW), fine to coarse-grained, light brown, damp 15-17 0 10 10 0 0 30 30 42-44 25-27 Sandy Gravel (GW) with silt, poorly sorted, light brown, damp 0