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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> M C Campbell Analytical Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> When puafit;,Counts <br /> bnp:l/www.mccunpbell.com/E-mail main@Jnmccampbell.com. <br /> Quality Control Report <br /> Client: Ponder Environmental Services WorkOrder: 1701D08 <br /> Date Prepared: 1/30117 BatchlD: 133378 <br /> Date Analyzed: 1/30/17 Extraction Method: SM4500H+B-2000 <br /> Instrument: WetChem Analytical Method: SM4500H+B-2000 <br /> Matrix: Water Unit: pH units @ 25°C <br /> Project: 17-16039;Pacific Ethanol Spill <br /> QC Summary Report for pH <br /> SamplD Sample Result Sample DF Dup I Serial Dup I Serial Precision Acceptance <br /> Dilution Result Dilution OF Criteria <br /> 1701C86-001A 6.72 1 6.72 1 — 0 0.1 <br /> CDPH FLAP 1644•NELAP 4033ORELAP QA/QC Officer <br /> Page 62 of 69 <br />