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May 5, 2021 <br />San Joaquin Co. Environmental Health Dep Lab ID <br />Water Quality Division Customer <br />Attn: Michael Kith <br />1868 East Hazelton Ave. <br />Stockton, CA 95205 <br />Laboratory Report <br />STK2135169 <br />3-17919 <br />Introduction: This report package contains total of 8 pages divided into 4 sections: <br />Case Narrative (2 pages) : An overview of the work performed at FGL. <br />Sample Results (1 page) : Results for each sample submitted. <br />Interpretation (1 page) : Drinking Water Interpretation for each sample submitted. <br />Quality Control (4 pages) : Supporting Quality Control (QC) results. <br />Case Narrative <br />This Case Narrative pertains to the following samples: <br />Sample Description Date Date FGL Lab ID # Matrix <br />Sampled Received <br />Wellhead 04/15/2021 04/15/2021 1 STK2135169-001 <br />DW <br />Sampling and Receipt Information: All samples were received in acceptable condition and within <br />temperature requirements, unless noted on the Condition Upon Receipt (CUR) form. All samples arrived <br />at 5.8 °C. All samples were prepared and analyzed within the method specified hold time. All samples <br />were checked for pH if acid or base preservation is required (except for VOAs). For details of sample <br />receipt information, please see the attached Chain of Custody and Condition Upon Receipt Form. <br />Quality Control: All samples were prepared and analyzed according to the following tables: <br />Inorganic - Metals QC <br />200.7 <br />04/19/2021:205711 All analysis quality controls are within established criteria. <br />04/26/2021:206086 All analysis quality controls are within established criteria. <br />04/16/2021:204151 All preparation quality controls are within established criteria (performed at FGL-SP <br />ELAN 1573), except: <br />The following note applies to Boron, Copper, Iron, Manganese: <br />04/25/2021:204475 All preparation quality controls are within established criteria (performed at FGL-SP <br />435 Sample matrix may be affecting this analyte. Data was accepted based on the LCS or CCV recovery. <br />Inorganic - Wet Chemistry QC <br />232013 <br />04/26/2021:206086 All analysis quality controls are within established criteria. <br />04/25/2021:204475 All preparation quality controls are within established criteria (performed at FGL-SP <br />ELAN 1573). <br />Page 1 of 9 <br />Corporate Offices & Laboratory Office & Laboratory Office & Laboratory Office & Laboratory <br />Office & Laboratory <br />853 Corporation Street 2500 Stagecoach Road 563 E. Lindo Avenue 3442 Empresa Drive, Suite D <br />9415 W. Goshen Avenue <br />Santa Paula, CA 93060 Stockton, CA 95215 Chico, CA 95926 San Luis Obispo, CA 93401 <br />Visalia, CA 93291 <br />TEL: (805)392-2000 TEL: (209)942-0182 TEL: (530)343-5818 TEL: (805)783-2940 <br />TEL: (559)734-9473 <br />Env FAX: (805)525-4172 / Ag FAX: (805)392-2063 FAX: (209)942-0423 FAX: (530)343-3807 FAX: (805)783-2912 <br />FAX: (559)734-8435 <br />CA ELAP Certification No. 1573 CA ELAP Certification No. 1563 CA ELAP Certification No. 2670 CA ELAP Certification No. 2775 <br />CA ELAP Certification No. 2810 <br />