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<br />May 31, 2022 Lab ID : STK2235613 <br />San Joaquin Co. Environmental Health Dep Customer : 3-17919 <br /> <br />Inorganic - Wet Chemistry QC <br />2320B 05/05/2022:206425 All analysis quality controls are within established criteria. <br /> 05/04/2022:204929 All preparation quality controls are within established criteria (performed at FGL-SP <br />ELAP# 1573). <br />2510B 05/10/2022:206650 All analysis quality controls are within established criteria. <br /> 05/10/2022:205128 All preparation quality controls are within established criteria (performed at FGL-SP <br />ELAP# 1573). <br />2540CE 04/26/2022:204551 All preparation quality controls are within established criteria (performed at FGL-SP <br />ELAP# 1573). <br />300.0 05/12/2022:206818 All analysis quality controls are within established criteria. <br /> 05/11/2022:205176 All preparation quality controls are within established criteria (performed at FGL-SP <br />ELAP# 1573). <br />4500NO2B 04/23/2022:205954 All analysis quality controls are within established criteria. <br /> 04/23/2022:204595 All preparation quality controls are within established criteria (performed at FGL-SP <br />ELAP# 1573). <br />4500NO3F 04/26/2022:205956 All analysis quality controls are within established criteria. <br /> 04/26/2022:204578 All preparation quality controls are within established criteria (performed at FGL-SP <br />ELAP# 1573). <br />5540C 04/23/2022:205847 All analysis quality controls are within established criteria. <br /> <br />04/23/2022:204511 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 /> <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 /> <br />KD:MKHDigitial Signature Stamp Y = 08.5 <br /> <br />Approved By Kelly A. Dunnahoo, B.S. Digitally signed by Kelly A. Dunnahoo, B.S. <br />Title: Laboratory Director <br />Date: 2022-06-01