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September 22, 2021 Lab ID : STK2152566 <br /> San Joaquin Co.Environmental Health Dep Customer : 3-17919 <br /> Inorganic - Wet Chemistry QC <br /> 2510B 09/14/2021:210625 All preparation quality controls are within established criteria(performed at FGL-SP <br /> ELAN 1573). <br /> 09/07/2021:210269 All preparation quality controls are within established criteria(performed at FGL-SP <br /> FLAP# 1573),except: <br /> 5540CE 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 09/03/2021:213977 All analysis quality controls are within established criteria. <br /> 09/03/2021:210232 All preparation quality controls are within established criteria(performed at FGL-SP <br /> ELAN 1573). <br /> 09/03/2021:213884 All analysis quality controls are within established criteria,except: <br /> 15540C The following note applies to MBAS: <br /> 360 CCV above Acceptance Range(AR).Samples which were non detect for this analyte were accepted. <br /> 09/03/2021:210315 All preparation quality controls are within established criteria(performed at FGL-SP <br /> ELAP# 1573),except: <br /> The following note applies to MBAS Extraction: <br /> 410 Relative Percent Difference(RPD)not within Maximum Allowable Value(MAV).Data was accepted <br /> based on the LCS or CCV recovery. <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:MKH <br /> Digitally wpd by Kelly A.Dw Ad .B.S. <br /> Approved By Kelly A.Dunnahoo,B.S. ( Title:Ub.,Aoy Di—w <br /> Dere:2021-09-23 <br /> Page 2 of 10 <br /> f <br /> i7- <br />