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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> McCampbell Analytical, Inc. To,lFreeTelephone:(877)252-9262/Fax:(925)252-9269 <br /> �y "When Quality Counts" I http://www.mccampbell.com/E-mail:main@mcampbell.com <br /> Quality Control Report <br /> Client: Terracon WorkOrder: 1910073 <br /> Date Prepared: 10/2/19- 10/4/19 BatchID: 186383 <br /> Date Analyzed: 10/2/19- 10/4/19 Extraction Method: E300.1 <br /> Instrument: IC4 Analytical Method: E300.1 <br /> Matrix: Water Unit: mg/L <br /> Project: NA197078;WHITLOW PROPERTY Sample ID: MB/LCS/LCSD-186383 <br /> 1910073-001 AMS/MSD <br /> QC Summary Report for E300.1 <br /> Analyte MB MDL RL SPK MB SS MB SS <br /> Result Val %REC Limits <br /> Nitrate as N ND 0.053 0.10 - <br /> Nitrate as NO3 ND 0.23 0.44 - - - <br /> Surrogate Recovery <br /> Formate 0.10 0.1 101 85-115 <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> Nitrate as N 0.98 0.97 1 98 97 85-115 0.148 15 <br /> Nitrate as NO3 4.3 4.3 4.4 98 98 85-115 0 15 <br /> Surrogate Recovery <br /> Formate 0.10 0.099 0.10 100 99 90-115 0.592 10 <br /> Analyte MS MS MSD SPK SPKRef MS MSD MS/MSD RPD RPD <br /> DF Result Result Val Val %REC %REC Limits Limit <br /> Nitrate as N 10 16 16 1 15.30 109 101 85-115 0.468 15 <br /> Nitrate as NO3 10 73 72 4.4 67.74 110 102 85-115 0.468 15 <br /> Surrogate Recovery <br /> Formate 10 0.10 0.10 0.10 103 101 90-115 1.81 10 <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 5 of 10 <br />