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TRENCH GRIT SAMPLE RESULTS - 02 <br /> Collected date/time: 09/05/25 08:00 L1895744 <br /> Preparation by Method 1311 <br /> Result Qualifier Prep Batch FP1 <br /> Analyte date/time <br /> FTC]TCLP Extraction 9/8/2025 9:38:28 AM WG2595694 <br /> TCLP ZHE Extraction - 9/7/2 02 5 1:21:11 AM WG2595685 <br /> Initial pH 6.41 9/8/2025 9:38:28 AM WG2595694 3 <br /> SS <br /> Final pH 5.18 9/8/2025 9:38:28 AM WG2595694 <br /> Wet Chemistry by Method 9012 B [Cn] <br /> Result Qualifier RDL Dilution Analysis Batch <br /> Analyte mg/kg mg/kg date/time <br /> Reactive Cyanide ND 0.250 1 09/11/2025 20:07 WG2598346 <br /> FQC <br /> Wet Chemistry by Method 9034-9030B <br /> Result Qualifier RDL Dilution Analysis Batch I <br /> G1 <br /> Analyte mg/kg mg/kg date/time <br /> Reactive Sulfide ND 75.0 1 09/10/2025 23:01 WG2598274 <br /> JAI <br /> Wet Chemistry by Method 9045D <br /> 9 <br /> Result Qualifier Dilution Analysis Batch q <br /> Analyte su date/time <br /> pH 6.90 T8 1 09/11/202515:55 WG2598546 <br /> Sample Narrative: <br /> L1895744-02 WG2598546:6.9 at 24C <br /> Wet Chemistry by Method 9095B <br /> Result Qualifier Dilution Analysis Batch <br /> Analyte % date/time <br /> Paint Filter Test 5.20 1 09/15/202513:45 WG2599962 <br /> Sample Narrative: <br /> L1895744-02 WG2599962:Contains No Free Liquid <br /> Wet Chemistry by Method D93/1010A <br /> Result Qualifier Dilution Analysis Batch <br /> Analyte Deg.F date/time <br /> Ignitability DNI at 170 1 09/16/2025 09:15 WG2600628 <br /> Mercury by Method 7470A <br /> Result Qualifier RDL Limit Dilution Analysis Batch <br /> Analyte mg/I mg/I mg/I date/time <br /> Mercury ND 0.0100 0.20 1 09/10/202515:59 WG2596833 <br /> Metals (ICP) by Method 6010D <br /> Result Qualifier RDL Limit Dilution Analysis Batch <br /> Analyte mg/I mg/I mg/I date/time <br /> Arsenic ND 0.100 5 1 09/09/202516:27 WG2596905 <br /> Barium 0.831 0.100 100 1 09/09/202516:27 WG2596905 <br /> Cadmium ND 0.100 1 1 09/09/202516:27 WG2596905 <br /> Chromium ND 0.100 5 1 09/09/202516:27 WG2596905 <br /> Lead ND 0.100 5 1 09/09/202516:27 WG2596905 <br /> Selenium ND 0.100 1 1 09/09/202516:27 WG2596905 <br /> Silver ND 0.100 5 1 09/09/202516:27 WG2596905 <br /> ACCOUNT: PROJECT: S DG: DATE/TIME: PAGE: <br /> UniFirst Corporation-Wilmington,MA UNIFIRST 370-CA L1895744 09/23/25 10:17 10 of 53 <br />