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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> M c C a m p b e I l Analytical, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> "When Quality Counts" I <br /> http://www.mccampbell.com/E-mail:main@mccampbell.com <br /> Quality Control Report <br /> Client: Kleinfelder,Inc. WorkOrder: 2010C13 <br /> Date Prepared: 10/22/2020 BatchID: 207948 <br /> Date Analyzed: 10/22/2020 Extraction Method: E300.1 <br /> Instrument: IC4 Analytical Method: E300.1 <br /> Matrix: Water Unit: mg/L <br /> Project: 20200630.00IA/02-0002;Costco Tracy Hansen Sample ID: MB/LCS/LCSD-207948 <br /> Trailer Yard NL SS <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 0.0170 0.100 - - <br /> Nitrate as NO3 ND 0.0740 0.440 - - <br /> Nitrite as N ND 0.0190 0.100 - - <br /> Nitrite as NO2 ND 0.0630 0.330 - - - <br /> Surrogate Recovery <br /> Malonate 0.0981 0.1 98 90-115 <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> Nitrate as N 0.948 0.954 1 95 95 85-115 0.665 20 <br /> Nitrate as NO3 4.20 4.23 4.4 95 96 85-115 0.665 20 <br /> Nitrite as N 0.901 0.910 1 90 91 85-115 1.04 20 <br /> Nitrite as NO2 2.96 2.99 3.3 90 91 85-115 1.04 20 <br /> Surrogate Recovery <br /> Malonate 0.0937 0.0937 0.10 94 94 90-115 0.0608 20 <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 9 of 17 <br />