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ENYIR0NM[N1Al California Environmental Protection Agency <br />ICNEMA RY Department of Toxic Substances Control <br />�AR�RAIORY Environmental Chemistry Laboratory <br />100 Heinz Avenue, Suite 100, Berkeley, CA 94710 <br />Telephone: (510) 540-2122 <br />ANALYTICAL LABORATORY REPORT - METALS (LIQUID) <br />Authorization No.: 20ECO105 Sample Location: Stockton Propeller, Inc. <br />1. Sampling Location: Stockton Propeller, Inc. <br />Address: 2478 Wilcox Road <br />Sacramento, CA 95826 <br />3. Sample (s) History: <br />Stockton, CA 95215 <br />2. Requestor'Name: <br />Trevor Anderson <br />Address: <br />8800 Cal Center Drive <br />Sacramento, CA 95826 <br />3. Sample (s) History: <br />Date Collected: <br />613/2021 <br />Date Received: <br />613/2021 <br />Date Prepared: <br />6116/2021 <br />Prepared Method: <br />EPA3010A <br />Date Analyzed: <br />6/182021,6/242021 <br />Analysis Method: EPA 6010C <br />Date data package was completed: <br />6/25/2021 <br />Case narrative: <br />1. Initial calibration and continuing calibration criteria were met? YES <br />2. Initial and Continuing Calibration blank criteria were met? YES <br />3. QC parameters were within control limits? NO <br />4. Sample holding time was met? YES <br />5. This method is ISO/IEC 17025 accredited for analysis of sediments, soils, wastes, and hazardous wastes only. <br />Comments: <br />Low chromium, cobalt, nickel, and silver recoveries were observed in BE02165 MS/MSD. These observations were confirmed <br />on 6/242021 and indicate potential matrix interference. <br />Sample Prepared by: <br />.."L—J�L,�Vl c- Date: 6�zr/zoal <br />Qiang Wang <br />Sample Analyzed by: <br />& 1.. U1/e� Date: <br />Qiang Wang <br />Ok-/2a i/ <br />Page 2 of 25 <br />