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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> McCampbell Analytical, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> "When Quality Counts" hfp://www.mccarnpbell.com/E-mail:main@mccainpbell.com <br /> mccampbell.com <br /> Quality Control Report <br /> Client: Advanced GeoEnvironmental, Inc. WorkOrder: 1907936 <br /> Date Prepared: 7/22/19-7/23/19 BatchlD: 182085 <br /> Date Analyzed: 7/22/19-7/23/19 Extraction Method: E300.1 <br /> Instrument: IC4 Analytical Method: E300.1 <br /> Matrix: Water Unit: mg/L <br /> Project: Menchaca Property Sample ID: MB/LCS/LCSD-182085 <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 0.10 104 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 0.95 0.96 1 95 96 85-115 0.572 15 <br /> Nitrate as NO3 4.2 4.2 4.4 96 96 85-115 0 15 <br /> Surrogate Recovery <br /> Formate 0.097 0.098 0.10 97 98 90-115 0.934 10 <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> h6 A-A of S <br />