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W L Certificate of Analysis FINAL REPORT WECK LABORATORIES,INC. Geoanalytical Laboratories,Inc. Project Number: F9J1406 Reported: 2300 Maryann Drive 12/19/2019 17:23 Turlock,CA 95380 Project Manager: Christina Ruiz Notes and Definitions Item Definition MS-01 The spike recovery for this QC sample is outside of established control limits possibly due to sample matrix interference. MS-02 The RPD and/or percent recovery for this QC spike sample cannot be accurately calculated due to the high concentration of analyte inherent in the sample. Rec Percent Recovery Dil Dilution dry Sample results reported on a dry weight basis MDA Minimum Detectable Activity MDL Method Detection Limit MRL The minimum levels,concentrations,or quantities of a target variable(e.g.,target analyte)that can be reported with a specified degree of confidence. The MRL is also known as Limit of Quantitation (LOQ) ND NOT DETECTED at or above the Method Reporting Limit(MRL). If Method Detection Limit(MDL)is reported,then ND means not detected at or above the MDL. NR Not Reportable RPD Relative Percent Difference Source Sample that was matrix spiked or duplicated. TIC Tentatively Identified Compound(TIC)using mass spectrometry.The reported concentration is relative concentration based on the nearest internal standard. If the library search produces no matches at,or above 85%,the compound is reported as unknown. Any remaining sample(s)will be disposed of one month from the final report date unless other arrangements are made in advance. An Absence of Total Coliform meets the drinking water standards as established by the California State Water Resources Control Board(SWRCB) All results are expressed on wet weight basis unless otherwise specified. All samples collected by Weck Laboratories have been sampled in accordance to laboratory SOP Number MIS002. 9324029 9„i 14Q, °9, lark Avenue.City of Industry CA,91745 i Phone: Fix:(r,2o')33c-;had eckfoLycorr,