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HomeMy WebLinkAboutDERR-2024-012969Rockwell Solutions, Inc., 718 E. Bridger Lane, Elk Ridge, UT 84651, 801-361-2930, rockwellutah@yahoo.com Rockwell Solutions, Inc. 718 E Bridger Lane Elk Ridge, UT 84651 (801) 361-2930 April 15, 2022 Mr. Bob Shepherd 25 S 200 East Levan, Utah 84639 Re: Soil Confirmation Sampling Report Shepherd Residence, 25 S 200 East, Levan, Utah Release ID: ODU Dear Mr. Shepherd: On April 4, 2022, Senergy Petroleum was loading an above ground tank at the above referenced site when the tank burst and approximately 1,500 gallons of red-dyed diesel fuel was released. The fuel flowed west of the tank and spread out across the dirt driveway and along the front edge of the residential property, saturating the top few inches of soil. See Figure 1. The impacted soil was immediately removed by scraping the soil with a front-end loader and hauling it to Shepherd property northeast of the site where it was spread out across the dirt road to aerate. See Figure 2. Approximately 80-90 cubic yards of soil were removed. On April 14, 2022, Rockwell Solutions collected soil confirmation samples throughout the spill area. Samples were collected from just below the exposed ground surface. Sample locations are shown on Figure 1. Samples were analyzed for benzene, toluene, ethylbenzene, total xylenes, naphthalene (BTEXN) using EPA Method 8260B and total petroleum hydrocarbons-diesel range organics (TPH- DRO) using EPA Method 8015b. Laboratory analytical results are shown in Table 1. Hydrocarbons were either not detected or were below Initial Screening Levels (ISLs). The site can be evaluated for closure after landfarm confirmation samples are below ISLs. If you need additional information or have any questions, please contact me at (801) 361-2930. Sincerely, David S Hansen Certified UST Consultant CC0130 Rockwell Solutions, Inc. cc: Eileen Brennan, DERR Figure 1 Site Map NORTH Approx. scale in feet 00 50 Robert Shepherd Home 25 S 200 East Levan, Utah Sample Location D-2, 3’ B-5 Generator B-1 NW, 1’ SS#1 NE, 1’ W, 1’ SW, 1.5’ Mid, 2’E, 1.5’ S, 1.5’ SE, 2’ Battery Trailer To Solar Panels Area of Excavation Tank SS#2 SS#3SS#4 SS#5 SS#7 SS#6SS#9 SS#8 SS#10 SS#11 SS#12 Area of Excavation Figure 2 Landfarm Location Map NORTH Approx. scale in feet 00 1,000 Robert Shepherd Home 25 S 200 East Levan, Utah D-2, 3’ B-5 Generator B-1 NW, 1’ N, 1’NE, 1’ W, 1’ SW, 1.5’ Mid, 2’E, 1.5’ S, 1.5’ SE, 2’ Battery Trailer To Solar Panels Area of Excavation Tank Landfarm Location Sample Depth Date Benzene (mg/kg) Toluene (mg/kg) Ethyl- benzene (mg/kg) Xylenes (mg/kg) Naph- thalene (mg/kg) TPH-DRO (mg/kg) SS#1 3-6" 4/14/2022 <0.01 <0.03 <0.03 0.12 <0.03 <63 SS#2 3-6" 4/14/2022 <0.01 <0.03 <0.03 <0.03 <0.03 <59 SS#3 3-6" 4/14/2022 <0.1 <0.25 <0.25 <0.25 <0.25 136 SS#4 3-6" 4/14/2022 <0.01 <0.03 <0.03 <0.03 <0.03 <59 SS#5 3-6" 4/14/2022 <0.01 <0.03 <0.03 <0.03 <0.03 <59 SS#6 3-6" 4/14/2022 <0.01 <0.03 <0.03 <0.03 <0.03 <61 SS#7 3-6" 4/14/2022 <0.01 <0.03 <0.03 <0.03 <0.03 <56 SS#8 3-6" 4/14/2022 <0.01 <0.03 <0.03 <0.03 <0.03 <59 SS#9 3-6" 4/14/2022 <0.01 <0.03 <0.03 <0.03 <0.03 <57 SS#10 3-6" 4/14/2022 <0.01 <0.03 <0.03 <0.03 <0.03 <57 SS#11 3-6" 4/14/2022 <0.01 <0.03 <0.03 <0.03 <0.03 <54 SS#12 3-6" 4/14/2022 <0.11 <0.28 <0.28 <0.28 <0.28 482 0.2 9 5 142 51 500 0.9 25 23 142 51 5,000 TPH-DRO = total petroleum hydrocarbons-diesel range organics BTEXN analyzed by EPA Method 8260. TPH-DRO analyzed by EPA Method 8015 RBCA Tier 1 Screening Levels Table 1 Initial Screening Levels Bob Shepherd Home 25 S 200 East, Levan, Utah Soil Sample Results 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: 22D1171 Project: Bob Shepherd Farm 4/21/2022 Approved By: Reed Hendricks, Director of Operations 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 16 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: 4/15/22 13:06 @ 4.6 °C 4/21/2022 Bob Shepherd Farm Sample ID: SS #1 Lab ID: 22D1171-01Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 4/14/22 15:50 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult Inorganic %4/18/224/18/220.1 SM 2540G78.8Total Solids Diesel Range mg/kg dry 4/18/224/18/2263EPA 8015C/3550BNDDiesel Range Organics Volatile Organic Compounds mg/kg dry 4/18/224/18/220.01 EPA 8260B/C 5035ANDBenzene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDEthylbenzene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDNaphthalene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDToluene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035A0.12Xylenes, total Project Name: Bob Shepherd Farm CtF WO#: 22D1171 www.ChemtechFord.com Page 2 of 15Page 2 of 16 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: 4/15/22 13:06 @ 4.6 °C 4/21/2022 Bob Shepherd Farm Sample ID: SS #2 Lab ID: 22D1171-02Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 4/14/22 16:00 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult Inorganic %4/18/224/18/220.1 SM 2540G85.2Total Solids Diesel Range mg/kg dry 4/18/224/18/2259EPA 8015C/3550BNDDiesel Range Organics Volatile Organic Compounds mg/kg dry 4/18/224/18/220.01 EPA 8260B/C 5035ANDBenzene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDEthylbenzene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDNaphthalene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDToluene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDXylenes, total Project Name: Bob Shepherd Farm CtF WO#: 22D1171 www.ChemtechFord.com Page 3 of 15Page 3 of 16 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: 4/15/22 13:06 @ 4.6 °C 4/21/2022 Bob Shepherd Farm Sample ID: SS #3 Lab ID: 22D1171-03Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 4/14/22 16:05 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult Inorganic %4/18/224/18/220.1 SM 2540G95.8Total Solids Diesel Range mg/kg dry 4/18/224/18/2250EPA 8015C/3550B136Diesel Range Organics Volatile Organic Compounds mg/kg dry 4/18/224/18/220.10 EPA 8260B/C 5035ANDBenzene mg/kg dry 4/18/224/18/220.25 EPA 8260B/C 5035ANDEthylbenzene mg/kg dry 4/18/224/18/220.25 EPA 8260B/C 5035ANDNaphthalene mg/kg dry 4/18/224/18/220.25 EPA 8260B/C 5035ANDToluene mg/kg dry 4/18/224/18/220.25 EPA 8260B/C 5035ANDXylenes, total Project Name: Bob Shepherd Farm CtF WO#: 22D1171 www.ChemtechFord.com Page 4 of 15Page 4 of 16 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: 4/15/22 13:06 @ 4.6 °C 4/21/2022 Bob Shepherd Farm Sample ID: SS #4 Lab ID: 22D1171-04Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 4/14/22 16:10 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult Inorganic %4/18/224/18/220.1 SM 2540G84.8Total Solids Diesel Range mg/kg dry 4/18/224/18/2259EPA 8015C/3550BNDDiesel Range Organics Volatile Organic Compounds mg/kg dry 4/18/224/18/220.01 EPA 8260B/C 5035ANDBenzene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDEthylbenzene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDNaphthalene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDToluene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDXylenes, total Project Name: Bob Shepherd Farm CtF WO#: 22D1171 www.ChemtechFord.com Page 5 of 15Page 5 of 16 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: 4/15/22 13:06 @ 4.6 °C 4/21/2022 Bob Shepherd Farm Sample ID: SS #5 Lab ID: 22D1171-05Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 4/14/22 16:15 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult Inorganic %4/18/224/18/220.1 SM 2540G84.1Total Solids Diesel Range mg/kg dry 4/18/224/18/2259EPA 8015C/3550BNDDiesel Range Organics Volatile Organic Compounds mg/kg dry 4/18/224/18/220.01 EPA 8260B/C 5035ANDBenzene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDEthylbenzene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDNaphthalene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDToluene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDXylenes, total Project Name: Bob Shepherd Farm CtF WO#: 22D1171 www.ChemtechFord.com Page 6 of 15Page 6 of 16 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: 4/15/22 13:06 @ 4.6 °C 4/21/2022 Bob Shepherd Farm Sample ID: SS #6 Lab ID: 22D1171-06Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 4/14/22 16:20 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult Inorganic %4/18/224/18/220.1 SM 2540G82.2Total Solids Diesel Range mg/kg dry 4/18/224/18/2261EPA 8015C/3550BNDDiesel Range Organics Volatile Organic Compounds mg/kg dry 4/18/224/18/220.01 EPA 8260B/C 5035ANDBenzene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDEthylbenzene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDNaphthalene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDToluene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDXylenes, total Project Name: Bob Shepherd Farm CtF WO#: 22D1171 www.ChemtechFord.com Page 7 of 15Page 7 of 16 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: 4/15/22 13:06 @ 4.6 °C 4/21/2022 Bob Shepherd Farm Sample ID: SS #7 Lab ID: 22D1171-07Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 4/14/22 16:25 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult Inorganic %4/18/224/18/220.1 SM 2540G88.6Total Solids Diesel Range mg/kg dry 4/18/224/18/2256EPA 8015C/3550BNDDiesel Range Organics Volatile Organic Compounds mg/kg dry 4/18/224/18/220.01 EPA 8260B/C 5035ANDBenzene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDEthylbenzene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDNaphthalene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDToluene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDXylenes, total Project Name: Bob Shepherd Farm CtF WO#: 22D1171 www.ChemtechFord.com Page 8 of 15Page 8 of 16 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: 4/15/22 13:06 @ 4.6 °C 4/21/2022 Bob Shepherd Farm Sample ID: SS #8 Lab ID: 22D1171-08Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 4/14/22 16:30 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult Inorganic %4/18/224/18/220.1 SM 2540G84.7Total Solids Diesel Range mg/kg dry 4/18/224/18/2259EPA 8015C/3550BNDDiesel Range Organics Volatile Organic Compounds mg/kg dry 4/18/224/18/220.01 EPA 8260B/C 5035ANDBenzene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDEthylbenzene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDNaphthalene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDToluene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDXylenes, total Project Name: Bob Shepherd Farm CtF WO#: 22D1171 www.ChemtechFord.com Page 9 of 15Page 9 of 16 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: 4/15/22 13:06 @ 4.6 °C 4/21/2022 Bob Shepherd Farm Sample ID: SS #9 Lab ID: 22D1171-09Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 4/14/22 16:35 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult Inorganic %4/18/224/18/220.1 SM 2540G88.2Total Solids Diesel Range mg/kg dry 4/18/224/18/2257EPA 8015C/3550BNDDiesel Range Organics Volatile Organic Compounds mg/kg dry 4/18/224/18/220.01 EPA 8260B/C 5035ANDBenzene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDEthylbenzene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDNaphthalene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDToluene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDXylenes, total Project Name: Bob Shepherd Farm CtF WO#: 22D1171 www.ChemtechFord.com Page 10 of 15Page 10 of 16 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: 4/15/22 13:06 @ 4.6 °C 4/21/2022 Bob Shepherd Farm Sample ID: SS #10 Lab ID: 22D1171-10Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 4/14/22 16:40 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult Inorganic %4/18/224/18/220.1 SM 2540G87.8Total Solids Diesel Range mg/kg dry 4/18/224/18/2257EPA 8015C/3550BNDDiesel Range Organics Volatile Organic Compounds mg/kg dry 4/18/224/18/220.01 EPA 8260B/C 5035ANDBenzene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDEthylbenzene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDNaphthalene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDToluene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDXylenes, total Project Name: Bob Shepherd Farm CtF WO#: 22D1171 www.ChemtechFord.com Page 11 of 15Page 11 of 16 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: 4/15/22 13:06 @ 4.6 °C 4/21/2022 Bob Shepherd Farm Sample ID: SS #11 Lab ID: 22D1171-11Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 4/14/22 16:45 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult Inorganic %4/18/224/18/220.1 SM 2540G92.1Total Solids Diesel Range mg/kg dry 4/18/224/18/2254EPA 8015C/3550BNDDiesel Range Organics Volatile Organic Compounds mg/kg dry 4/18/224/18/220.01 EPA 8260B/C 5035ANDBenzene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDEthylbenzene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDNaphthalene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDToluene mg/kg dry 4/18/224/18/220.03 EPA 8260B/C 5035ANDXylenes, total Project Name: Bob Shepherd Farm CtF WO#: 22D1171 www.ChemtechFord.com Page 12 of 15Page 12 of 16 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: 4/15/22 13:06 @ 4.6 °C 4/21/2022 Bob Shepherd Farm Sample ID: SS #12 Lab ID: 22D1171-12Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 4/14/22 16:50 Preparation Date/Time Sampled By: David Hansen Minimum Reporting Limit MethodResult Inorganic %4/18/224/18/220.1 SM 2540G88.7Total Solids Diesel Range mg/kg dry 4/18/224/18/2256EPA 8015C/3550B482Diesel Range Organics Volatile Organic Compounds mg/kg dry 4/18/224/18/220.11 EPA 8260B/C 5035ANDBenzene mg/kg dry 4/18/224/18/220.28 EPA 8260B/C 5035ANDEthylbenzene mg/kg dry 4/18/224/18/220.28 EPA 8260B/C 5035ANDNaphthalene mg/kg dry 4/18/224/18/220.28 EPA 8260B/C 5035ANDToluene mg/kg dry 4/18/224/18/220.28 EPA 8260B/C 5035ANDXylenes, total Project Name: Bob Shepherd Farm CtF WO#: 22D1171 www.ChemtechFord.com Page 13 of 15Page 13 of 16 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: 4/15/22 13:06 @ 4.6 °C 4/21/2022 Bob Shepherd Farm 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. Project Name: Bob Shepherd Farm CtF WO#: 22D1171 www.ChemtechFord.com Page 14 of 15Page 14 of 16 Page 15 of 16 Page 16 of 16