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'kSS0 C I ATES` <br />BSK Associates Laboratory Fresno <br />AFH3921 <br />General <br />EPA 504.1 - Quality Control <br />Batch: AF10256 <br />Prepared: 9/6/2022 <br />Prep Method: EPA 504/505 <br />Analyst: VTL <br />Blank (AF10256-BLK1) <br />Dibromochloropropane (DBCP) <br />ND <br />0.010 <br />ug/L <br />09/07/22 <br />Surrogate:) -Br -2 -Nitrobenzene <br />0.44 <br />0.46 <br />95 <br />70-130 <br />09/07/22 <br />Blank Spike (AF10256-BSI) <br />Dibromochloropropane (DBCP) <br />0.094 <br />0.010 <br />ug/L <br />0.10 ND <br />94 <br />70-130 <br />09/07/22 <br />Surrogate:) -Br -2 -Nitrobenzene <br />0.43 <br />0.46 <br />94 <br />70-130 <br />09/07/22 <br />Blank Spike Dup (AF10256-BSD1) <br />Dibromochloropropane (DBCP) <br />0.086 <br />0.010 <br />ug/L <br />0.10 ND <br />86 <br />70-130 <br />9 20 09/07/22 <br />Surrogate: 1 -Br -2 -Nitrobenzene <br />0.38 <br />0.46 <br />83 <br />70-130 <br />09/07/22 <br />Matrix Spike (AF10256-MS1), Source: AFH3916-01 <br />Dibromochloropropane (DBCP) <br />0.085 <br />0.010 <br />ug/L <br />0.10 ND <br />85 <br />65-135 <br />09/07/22 <br />Surrogate: 1 -Br -2 -Nitrobenzene <br />0.38 <br />0.46 <br />83 <br />70-130 <br />09/07/22 <br />The results in this report apply to the samples analyzed in AFH3921 FINAL 09152022 1628 <br />accordance with the chain of custody document. This <br />analytical report must be reproduced in its entirety. <br />Page 5 of 10 <br />www.BSKAssociates.com <br />