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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> M c C a m p b e I l Analytical, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> "When Quality Counts" http://www.mccampbell.com/E-mail:main@mccampbell.com <br /> Analytical Report <br /> Client: UniFirst Corporation WorkOrder: 2509398 <br /> Date Collected: 09/05/2025 7:30 Extraction Method: Polisini&Miller(CDFG 1988)(Haz.) <br /> Date Received: 09/05/2025 16:25 Analytical Method: Polisini&Miller(CDFG 1988)(Haz.) <br /> Project: Samples received 9/5/25 Sample Matrix: Solid <br /> Hazardous Waste 96-hr Definitive Bioassay w/Fathead Minnows <br /> Lab ID 2509398-OOIA Species Pimephales promelas Avg.Length(mm) 30.454 <br /> Client ID Trench Common Name Fathead Minnow Avg.Weight(g) 0.281512 <br /> Control Water Batch# EPASW 550 Organism Supplier ABS Max Weight(g) 0.34861 <br /> Control Water Soft Synthetic Water Organism Lo # 250912FHM Min Weight 0.23923 <br /> Randomization Ne N/A Test Location TR 2.2A <br /> 7Temperature(°C) pH D.O.(mg/L) EC(µS/cm) Survival <br /> oncentration Comments <br /> B A B A B A B A B <br /> Control 19.7 19.8 7.13 7.20 9.0 9.0 170.3 169.6 10 10 Date: 9/17/2025 <br /> 250 mg/L 19.8 19.8 7.20 7.22 8.9 8.9 169.2 169.0 10 10 Time: 12:14 PM <br /> 375 mg/L 19.8 19.8 7.22 7.21 8.8 8.8 168.8 169.0 10 10 Analyst: MTO <br /> 500 mg/L 19.9 20.0 7.20 7.18 8.9 8.9 169.7 168.8 10 10 Meter ID: MM01 <br /> 625 mg/L 20.0 19.9 7.17 7.16 8.8 8.8 168.4 169.6 10 10 <br /> 750 mg/L 19.9 19.9 7.16 7.15 8.8 8.8 170.7 168.5 10 10 <br /> Control 19.7 19.8 7.44 7.50 8.9 8.9 172.2 171.5 10 10 Date: 9/18/2025 <br /> 250 mg/L 19.9 19.8 7.39 7.45 8.2 8.4 170.3 169.9 0 0 Time: 09:24 AM <br /> 375 mg/L 19.8 19.7 7.42 7.45 8.3 8.4 170.3 171.0 0 0 Analyst: MTO <br /> 500 mg/L 19.8 20.0 7.43 7.42 8.4 8.5 172.5 171.7 0 0 Meter ID: MM01 <br /> 625 mg/L 19.9 19.8 7.44 7.45 8.6 8.6 171.1 172.7 0 0 <br /> 750 mg/L 19.7 19.8 7.45 7.41 8.6 8.5 172.6 171.0 0 0 <br /> Control 19.9 20.0 7.32 7.37 8.8 8.8 172.6 171.2 10 10 Date: 9/19/2025 <br /> 250 mg/L -- -- -- -- -- -- -- -- 0 0 Time: 09:39 AM <br /> 375 mg/L -- -- - -- 0 0 Analyst: JAD <br /> 500 mg/L -- -- -- -- -- 0 0 Meter ID: MM01 <br /> 625 mg/L -- -- -- -- 0 0 <br /> 750 mg/L -- -- -- -- -- -- -- -- 0 0 <br /> Control 19.8 20.2 7.39 7.41 8.8 8.9 175.8 173.8 10 10 Date: 9/20/2025 <br /> 250 mg/L -- -- -- -- -- -- -- -- 0 0 Time: 11:14 AM <br /> 375 mg/L -- -- -- -- -- 0 0 Analyst: JRI <br /> 500 mg/L -- -- -- -- -- 0 0 Meter ID: MM01 <br /> 625 mg/L -- -- -- -- -- 0 0 <br /> 750 mg/L -- -- -- -- -- -- -- -- 0 0 <br /> Control 20.0 20.0 7.26 7.24 8.8 8.8 178.4 174.2 10 10 Date: 9/21/2025 <br /> 250 mg/L -- -- -- -- -- -- -- -- 0 0 Time: 01:02 PM <br /> 375 mg/L 0 0 Analyst: JAD <br /> 500 mg/L 0 0 Meter ID: MM01 <br /> 625 mg/L 0 0 <br /> 750 mg/L -- 0 0 <br /> (Cont.) <br /> CA ELAP 1644•ORELAP(NELAP)4033 <br /> Page 4 of 19 <br />