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FRIEDMAN & BRUYA, INC. <br /> ENVIRONMENTAL CHEMISTS <br /> Date of Report: 11/13/24 <br /> Date Received: 11/11/24 <br /> Project: Wave Apartments 096-24516, F&BI 411170 <br /> QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF SOIL SAMPLES <br /> FOR BENZENE, TOLUENE, ETHYLBENZENE, <br /> XYLENES, AND TPH AS GASOLINE <br /> USING EPA METHOD 8021B AND NWTPH-Gx <br /> Laboratory Code: 411149-10 (Duplicate) <br /> Sample Duplicate <br /> Reporting Result Result RPD <br /> Analyte Units (Wet Wt) (Wet Wt) (Limit 20) <br /> Benzene mg/kg(ppm) <0.02 <0.02 nm <br /> Toluene mg/kg(ppm) <0.02 <0.02 nm <br /> Ethylbenzene mg/kg(ppm) <0.02 <0.02 nm <br /> Xylenes mg/kg (ppm) <0.06 <0.06 nm <br /> Gasoline mg/kg(ppm) <5 <5 nm <br /> Laboratory Code: Laboratory Control Sample <br /> Percent <br /> Reporting Spike Recovery Acceptance <br /> Analyte Units Level LCS Criteria <br /> Benzene mg/kg(ppm) 1.0 73 70-130 <br /> Toluene mg/kg(ppm) 1.0 76 70-130 <br /> Ethylbenzene mg/kg(ppm) 1.0 75 70-130 <br /> Xylenes mg/kg(ppm) 3.0 73 70-130 <br /> Gasoline mg/kg(ppm) 40 80 70-130 <br /> 4 <br />