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A <br />Quality Control - Wet Chem <br />4500N03F 07/02/2025.-207239MM1 <br />(SP 2511092-012) <br />Prepared to verify that the preparation process is not contributing contamination to the samples. <br />MSD <br />MSRPD <br />ND <br />Page 3 of 3 <br />Method Date/ID Type Units Cone.QC Data DQO NoteWet <br />Nitrate Nitrogen <br />Constituent <br />Lab No. <br />Customer No. <br />mg/L <br />mg/L <br />mg/L <br />mg/L <br />mg/L <br />11.22 <br />5.609 <br />5.609 <br />: STK2539594 <br />:3016912 <br />Blank <br />DQO <br />LCS <br />MS <br />Office & Laboratory <br />2500 Stagecoach Road <br />Stockton, CA 95215 <br />TEL (209)942-0182 <br />CA ELAP Certification No 1563 <br />Blank <br />LCS <br />MS <br />MSD <br />MSRPD <br />Office & Laboratory <br />3442 Empress Drive. Suite D <br />San Luis Obispo, CA 93401 <br />TEL (805)783-2940 <br />CA ELAP Certification No 2775 <br /><0.4 <br />80-120 <br />66-125 <br />66-125 <br /><30.4 <br />July 8, 2025 <br />Golden Harvest Safety <br />Office & Laboratory <br />563 E. Lindo Avenue <br />Chico, CA 95926 <br />TEL: (530)343-5818 <br />CA ELAP Certification No 2670 <br />ND <br />95.4% <br />95.4% <br />94.3% <br />0.6% <br />Page 3 of 3________ <br />Office & Laboratory <br />9411 W Goshen Avenue <br />Visalia, CA 93291 <br />TEL (559)734-9473 <br />CA ELAP Certification No 2810 <br />Section: Quality Control <br />Corporate Offices & Laboratory <br />853 Corporation Street <br />Santa Paula CA 93060 <br />TEL. (805)392-2000 <br />CA E LAP Certification No 1573 <br />EWlKCWIEi^TAL <br />Analytical Chemists <br />AGRICULTURAL <br />Definition <br />: Method Blank - <br />: Data Quality Objective - This is the criteria against which the quality control data is compared. <br />: Laboratory Control Standard/Sample - Prepared to verify that the preparation process is not affecting analyte recovery. <br />: Xte anX‘reXd™ s™1”6 “ SPi'“id Wi‘h ‘ kn°'™ an,0U"t °f The are "" that sample matrix <br />■' iS Spi“ mlh a ~ ■">= series are a„ <br />: a!ial^isD Relat‘Ve PerCent D'fference (RPD) ‘The MS relative Percent difference is an indication of precision for the preparation and <br />: Non-detect - Result was below the DQO listed for the analyte.