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June 19, 2019 Lab ID : STK1937486 <br /> San Joaquin Co.Environmental Health Dep Customer : 3-17919 <br /> Inorganic- Wet Chemistry QC <br /> 2510B 05/28/2019:205955 All preparation quality controls are within established criteria. <br /> 05/28/2019:205936 All preparation quality controls are within established criteria,except: <br /> 2540CE The following note applies to Total Dissolved Solids(TFR): <br /> 440 Sample nonhomogeneity may be affecting this analyte.Data was accepted based on the LCS or CCV <br /> recovery. <br /> 300.0 06/11/2019:208645 All analysis quality controls are within established criteria. <br /> 06/10/2019:206509 All preparation quality controls are within established criteria. <br /> 450ONO2F 05/24/2019:205875 All preparation quality controls are within established criteria. <br /> 450ONO3F 05/24/2019:207920 All analysis quality controls are within established criteria. <br /> 05/24/2019:207921 All analysis quality controls are within established criteria. <br /> 05/24/2019:205874 All preparation quality controls are within established criteria. <br /> 5540C 05/24/2019:207846 All analysis quality controls are within established criteria. <br /> 05/24/2019:205933 All preparation quality controls are within established criteria. <br /> Certification:: I certify that this data package is in compliance with ELAP standards, both technically <br /> and for completeness,except for any conditions listed above. Release of the data contained in this data <br /> package is authorized by the Laboratory Director or his designee, as verified by the following electronic <br /> signature. <br /> KD:DMB <br /> Diglully.ignd by Kelly A Dwneh...BS. <br /> Approved By Kelly A.Dunnahoo,B.S. ('� rl0e:Isbo.uuy D=. <br /> Due:]019-0619 <br /> Page 2 of 8 <br />