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SAP/QAPP Addendum <br /> Lodi-125 N Stockton <br /> Final <br /> March 24,2025 <br /> SITE-SPECIFIC QAPP WORKSHEET #28 (CONTINUED) <br /> ANALYTICAL QC AND CORRECTIVE ACTION <br /> Matrix Soil Gas <br /> Indoor/Outdoor Air <br /> Analytical Group VOCs <br /> Concentration Level Scan/SIM <br /> Sampling SOP SOPS#38 and#83 <br /> Analytical Method EPA TO-15,TO-15-SIM <br /> Sampler's Name/ <br /> TBD/Toeroek Team <br /> Organization <br /> Analytical Organization Eurofins Air Toxics <br /> No. of Sampling Locations See Site-Specific QAPP <br /> Worksheet#20 <br /> Person(s) <br /> QC Frequency/ Corrective Action Responsible DQI Measurement <br /> Samples Numbers for CA Performance Criteria <br /> No target analytes <br /> One per analytical Correct problem.If required,reanalyze method >_ 1/2 LOQ or> 1/10 the <br /> blank and all samples processed with the Analytical amount measured in any <br /> Method batch (after the first Laboratory <br /> contaminated blank. Accuracy/Bias sample. For common <br /> Blank CCV),prior to analysis If reanalysis cannot be performed,data must be Chemist Contamination laboratory contaminants, <br /> of any field samples. qualified and explained in the report narrative. no analytes detected <br /> >LOQ <br /> Correct problem,reanalyze the LCS;reanalyze <br /> all samples in the associated analytical batch Analytical <br /> LCS/LCSD One per analytical and/or qualify analytes,as appropriate. Laboratory Accuracy/ 70-130%R <br /> batch. If reanalysis cannot be performed,data must Chemist <br /> be qualified and explained in the report Precision <br /> narrative. <br /> Deuterated Reanalyze sample. If on reanalysis,the <br /> Monitoring monitoring compound meets criteria,report Laboratory %R as presented in Site- <br /> All samples reanalysis results.If upon reanalysis,the Accuracy Specific QAPP <br /> Compounds monitoring compound does not meet criteria, Analyst Worksheet#12 <br /> (Surrogates) <br /> report the results in the narrative. <br /> 68 <br />