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C <br /> ace Analytical <br /> ENVIRONMENTAL SCIENCES <br /> Arcadis-SLO Reported: 04/13/2026 19:39 <br /> 4119 Broad Street Suite 210 Project: Forward Landfill-Air Samples <br /> San Luis Obispo,CA 93401 Project Number: 30274343.01 1 Q26 Soil Vapor <br /> Project Manager: Dalia Rumani <br /> Volatile Organic Compounds by GC/MS (EPA Method TO-15) <br /> Pace Sample ID: 2604216-02 Client Sample Name: Forward Landfill,FU-04E-A,FU-04E-A,3/20/2026 4:00:OOPM,Antonio Del-Tech <br /> MB Lab <br /> Constituent Result Units PQL MDL Method Bias Qualls DCN <br /> 1,2-Dichloro-1,1,2,2-tetrafluoroethane 440 ug/m3 28 5.6 EPA-TO-15 ND A01 1 <br /> Air <br /> 1,4-Dioxane ND ug/m3Air 14 7.1 EPA-TO-15 ND A01 <br /> Ethanol ND ug/m3 Air 19 4.1 EPA-TO-15 ND A01 <br /> Ethyl acetate ND ug/m3 Air 14 4.6 EPA-TO-15 ND A01 1 <br /> Ethylbenzene ND ug/m3 Air 17 4.4 EPA-TO-15 ND A01 1 <br /> 1-Ethyl-4-methylbenzene ND ug/m3Air 20 5.5 EPA-TO-15 ND A01 1 <br /> n-Heptane 150 ug/m3 16 5.9 EPA-TO-15 ND A01 1 <br /> Air <br /> Hexachlorobutadiene ND ug/m3 Air 43 13 EPA-TO-15 ND A01 <br /> Hexane 230 ug/m3 14 3.1 EPA-TO-15 ND A01 <br /> Air <br /> 2-Hexanone ND ug/m3 Air 16 9.0 EPA-TO-15 ND A01 1 <br /> Isopropyl alcohol ND ug/m3 Air 25 4.5 EPA-TO-15 ND A01 1 <br /> Methylene chloride ND ug/m3 Air 35 8.3 EPA-TO-15 ND A01 1 <br /> Methyl ethyl ketone ND ug/m3 Air 12 3.7 EPA-TO-15 ND A01 <br /> Methyl isobutyl ketone ND ug/m3 Air 16 4.7 EPA-TO-15 ND A01 <br /> Methyl t-butyl ether 12 ug/m3 14 2.9 EPA-TO-15 ND J,A01 <br /> Air <br /> Propylene ND ug/m3 Air 6.9 3.2 EPA-TO-15 ND A01 1 <br /> Styrene ND ug/m3Air 17 5.8 EPA-TO-15 ND A01 <br /> 1,1,2,2-Tetrachloroethane ND ug/m3Air 27 7.0 EPA-TO-15 ND A01 1 <br /> Tetrachloroethene ND ug/m3 Air 27 6.9 EPA-TO-15 ND A01 <br /> Tetrahydrofuran 250 ug/m3 12 3.5 EPA-TO-15 ND A01 <br /> Air <br /> Toluene ND ug/m3 Air 15 3.6 EPA-TO-15 ND A01 1 <br /> 1,2,4-Trichlorobenzene ND ug/m3Air 74 9.5 EPA-TO-15 ND A01 1 <br /> 1,1,1-Trichloroethane ND ug/m3Air 22 4.7 EPA-TO-15 ND A01 1 <br /> 1,1,2-Trichloroethane ND ug/m3Air 22 5.1 EPA-TO-15 ND A01 <br /> Trichloroethene ND ug/m3 Air 21 7.1 EPA-TO-15 ND A01 <br /> Trichlorofluoromethane ND ug/m3 Air 22 3.8 EPA-TO-15 ND A01 <br /> 1,1,2-Trichloro-1,2,2-trifluoroethane ND ug/m3Air 31 7.4 EPA-TO-15 ND A01 1 <br /> 1,2,4-Trimethylbenzene ND ug/m3Air 20 6.5 EPA-TO-15 ND A01 1 <br /> 1,3,5-Trimethylbenzene ND ug/m3Air 20 8.2 EPA-TO-15 ND A01 1 <br /> Vinyl acetate ND ug/m3 Air 14 3.2 EPA-TO-15 ND A01 1 <br /> Vinyl chloride 11 ug/m3 10 1.6 EPA-TO-15 ND A01 <br /> Air <br /> The results in this report apply to the samples analyzed in accordance with the chain of custody document.This analytical report must be reproduced in its entirety. <br /> All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration,separation,detachment or third party interpretation. <br /> Report ID: 1001665764 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 10 of 19 <br />