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Kirkwood Meadows Public Utility District-26020676 <br /> Western Environmental Testing Laboratory <br /> Analytical Report <br /> Kirkwood Meadows Public Utility District Date Printed: 3/10/2026 <br /> P.O.Box 247 OrderID: 26020676 <br /> Kirkwood,CA 95646 <br /> Attn: Jon Campbell <br /> Phone: (209)258-4444 Fax: (209)258-8727 <br /> Customer Sample ID: SLUDGE PORFILE 4 CONTAINERS Collect Date/Time: 2/23/2026 12:00 <br /> WETLAB Sample ID: 26020676-001 Receive Date: 2/24/2026 16:36 <br /> Analyte Method Results Units DF RL Analyzed LabH) <br /> Trace Metals(Soil/Solids/Sediment)by ICP-OES <br /> Antimony SW846 6010 D ND M,D mg/kg Dry 47.1 8.0 3/2/2026 NVO0925 <br /> Arsenic SW846 6010 D ND M,D mg/kg Dry 47.1 16 3/2/2026 NVO0925 <br /> Barium SW846 6010 D 130 QD mg/kg Dry 47.1 6.4 3/2/2026 NVO0925 <br /> Beryllium SW846 6010 D ND M,D mg/kg Dry 47.1 0.64 3/2/2026 NVO0925 <br /> Cadmium SW846 6010 D ND M,D mg/kg Dry 47.1 0.64 3/2/2026 NVO0925 <br /> Chromium SW846 6010 D 26 M mg/kg Dry 47.1 1.6 3/2/2026 NVO0925 <br /> Cobalt SW846 6010 D ND M,D mg/kg Dry 47.1 4.8 3/2/2026 NVO0925 <br /> Copper SW846 6010 D 240 M mg/kg Dry 47.1 16 3/2/2026 NVO0925 <br /> Lead SW846 6010 D ND M,D mg/kg Dry 47.1 6.4 3/2/2026 NVO0925 <br /> Molybdenum SW846 6010 D ND M,D mg/kg Dry 47.1 16 3/2/2026 NVO0925 <br /> Nickel SW846 6010 D 33 M mg/kg Dry 47.1 16 3/2/2026 NVO0925 <br /> Selenium SW846 6010 D ND M,D mg/kg Dry 47.1 16 3/2/2026 NVO0925 <br /> Silver SW846 6010 D ND M,D mg/kg Dry 47.1 9.7 3/2/2026 NVO0925 <br /> Thallium SW846 6010 D ND M,D mg/kg Dry 47.1 13 3/2/2026 NVO0925 <br /> Vanadium SW846 6010 D 3.9 M mg/kg Dry 47.1 3.2 3/2/2026 NVO0925 <br /> Zinc SW846 6010 D 550 M mg/kg Dry 47.1 16 3/2/2026 NVO0925 <br /> General Chemistry <br /> Total Solids(TS) SM 2540 G 14.63 % 1 0.1000 3/2/2026 NVO0925 <br /> Mercury by CVAA <br /> Mercury SW846 7471 B 36 mg/kg Dry 10 1.0 3/4/2026 NVO0925 <br /> Total Petroleum Hydrocarbons by GC-FID <br /> TPH Gas(C6 to C10) EPA 8015C ND mg/kg 1 3.0 3/3/2026 NVO0925 <br /> TPH Diesel(C10 to C28) EPA 8015C 170 mg/kg 10 100 3/3/2026 NVO0925 <br /> TPH Oil(C28 to C40) EPA 8015C 100 mg/kg 10 100 3/3/2026 NVO0925 <br /> Surrogate:aaa-Trii luorotoluene EPA 8015C 71 % NVO0925 <br /> Surrogate:p-Terphenyl EPA 8015C 112 % NVO0925 <br /> Surrogate:p-Terphenyl EPA 8015C 112 % NVO0925 <br /> Volatile Organic Compounds by GC-MS <br /> 1,1,1,2-Tetrachloroethane EPA 8260D ND D µg/kg 10 50 3/4/2026 NVO0925 <br /> 1,1,1-Trichloroethane EPA 8260D ND D µg/kg 10 50 3/4/2026 NVO0925 <br /> 1,1,2,2-Tetrachloroethane EPA 8260D ND D µg/kg 10 50 3/4/2026 NVO0925 <br /> 1,1,2-Trichloroethane EPA 8260D ND D µg/kg 10 50 3/4/2026 NVO0925 <br /> 1,1-Dichloroethane EPA 8260D ND D µg/kg 10 50 3/4/2026 NVO0925 <br /> 1,1-Dichloroethene EPA 8260D ND D µg/kg 10 50 3/4/2026 NVO0925 <br /> 1,1-Dichloropropene EPA 8260D ND D µg/kg 10 50 3/4/2026 NVO0925 <br /> DF=Dilution Factor,RL=Reporting Limit(minimum 3X the MDL),ND=Not Detected<RL or<MDL(if listed) Page 4 of 10 <br /> SPARKS ELKO LAS VEGAS <br /> 475 E.Greg Street,Suite 119 1084 Lamoille Hwy 3230 Polaris Ave.Suite 4 <br /> Sparks,Nevada 89431 Elko,Nevada 89801 Las Vegas,Nevada 89102 <br /> tel(775)355-0202 tel(775)777-9933 tel(702)475-8899 <br /> fax(775)355-0817 fax(775)777-9933 fax(702)622-2868 <br /> EPA LAB ID: NVO0925-ELAP No:2523 EPA LAB ID:NVO0926 EPA LAB ID:NVO0932 <br />