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ENYIRCNMENTA! BCIEHCEB <br />Arcadis- SLO Reported: <br />03/21/2023 8:38 <br />735 Tank Farm Rd, Suite 150 Project: <br />Forward Landfill <br />San Luis Obispo, CA 93401 Project Number: <br />30110745.01 <br />Project Manager: <br />Drew Feucht <br />Organo -Phosphorus Pesticide Analysis (EPA Method 8141A) <br />Quality Control Report - Method Blank Analysis <br />Constituent QC Sample ID MB Result Units PQL MDL Lab Quals Run # <br />QC Batch ID: B159635 <br />Atrazine B159635-BLK1 ND ug/L 0.20 0.069 1 <br />Azinphos methyl 8159635-BLK1 ND ug/L 0.50 0.12 1 <br />Bolstar <br />B159635-BLK1 <br />ND <br />ug/L <br />0.20 <br />0.050 <br />1 <br />Chlorpyrifos <br />8159635-BLK1 <br />ND <br />ug/L <br />0.20 <br />0.050 <br />1 <br />Coumaphos <br />B159635-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.11 <br />1 <br />Demeton O/S <br />B159635-BLK1 <br />ND <br />ug/L <br />0.20 <br />0.056 <br />1 <br />Diazinon <br />B159635-BLK1 <br />ND <br />ug/L <br />0.20 <br />0.050 <br />1 <br />Dichlorvos <br />B159635-BLK1 <br />ND <br />ug/L <br />0.20 <br />0.050 <br />1 <br />Dimethoate <br />B159635-BLK1 <br />ND <br />ug/L <br />0.20 <br />0.050 <br />1 <br />Disulfoton <br />B159635-BLK1 <br />ND <br />ug/L <br />0.20 <br />0.050 <br />1 <br />Ethoprop <br />8159635-BLK1 <br />ND <br />ug/L <br />0.20 <br />0.052 <br />1 <br />Ethyl Parathion <br />B159635-BLK1 <br />ND <br />ug/L <br />0.20 <br />0.050 <br />1 <br />Fensulfothion <br />8159635-BLK1 <br />ND <br />ug/L <br />0.20 <br />0.051 <br />1 <br />Fenthion <br />B159635-BLK1 <br />ND <br />ug/L <br />0.20 <br />0.050 <br />1 <br />Merphos <br />8159635-BLK1 <br />ND <br />ug/L <br />0.20 <br />0.050 <br />1 <br />Methyl parathion <br />B159635-BLK1 <br />ND <br />ug/L <br />0.20 <br />0.050 <br />1 <br />Mevinphos <br />8159635-BLK1 <br />ND <br />ug/L <br />0.20 <br />0.050 <br />1 <br />Naled <br />B159635-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.17 <br />1 <br />Phorate <br />B159635-BLK1 <br />ND <br />ug/L <br />0.20 <br />0.066 <br />1 <br />Ronnel (Fenchlorphos) <br />B159635-BLK1 <br />ND <br />ug/L <br />0.20 <br />0.050 <br />1 <br />Simazine <br />B159635-BLK1 <br />ND <br />ug/L <br />0.20 <br />0.075 <br />1 <br />Stirophos (Tetrachlorvinphos) <br />8159635-BLK1 <br />ND <br />ug/L <br />0.20 <br />0.082 <br />1 <br />Thionazin <br />B159635-BLK1 <br />ND <br />ug/L <br />0.20 <br />0.050 <br />1 <br />Tokuthion (Prothiofos) <br />8159635-BLK1 <br />ND <br />ug/L <br />0.20 <br />0.050 <br />1 <br />Trichloronate <br />B159635-BLK1 <br />ND <br />ug/L <br />0.20 <br />0.050 <br />1 <br />Triphenyl phosphate (Surrogate) <br />B159635-BLK1 <br />58.2 <br />% <br />50 -130 (LCL - UCL) <br />1 <br />Run # QC Sample ID <br />QC Type Method <br />Prep Date <br />Run <br />Date Time <br />Analyst Instrument <br />Dilution <br />1 B159635-BLK1 <br />PB EPA -8141A <br />02/07/23 <br />02/08/2316:51 <br />NAP GC -18 <br />1 <br />The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. <br />All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. <br />Report ID: 1001407804 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 33 of 58 <br />