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ACZ Laboratories, Inc. <br />2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 <br />Brown and Caldwell ACZ Project ID: L43879 <br />,.:. a- .. <br /> <br />L43879-Ot WG765838 Calcium, dissolved M200.71CP M3 The accuracy of the spike rewvery value is reduced since <br /> the analyte concentration in the sample is disproportionate <br /> to spike level. The method control sample recovery was <br /> acceptable. <br /> Magnesium, dissolved M200.71CP kM Oce spike recovery was outside of the method IImItS; the <br /> duplicate spike antl the method control recovedes were <br /> within the method limits. <br /> Manganese, dissolved M200.7 ICP !M One spike recovery was outside of the method limits; the <br /> duplicate Spike and the method control recoveries were <br /> wihin the method limts. <br /> Potassium, dissolved M200.71CP M4 One spike recovery was outside of the method limits; the <br /> duplicate spike and the method central recoveries were <br /> wihin the method limits. <br />WG765962 Sodium, dissolved M200.71CP BC Target analyte detectetl in calibration Dlank al or above <br /> method reporting limd. Concentmtion found in the sample <br /> was 20 times above the concentration fountl in the <br /> calibration Dlank. <br />WG16583a Zinc, dissolved M200.71CP MA One spike recovery was outside of the method limits; the <br /> duplicate spike and the method control recoveries were <br /> within the methotl limits. <br />WG165720 Nitrate/Nhrfle as N, dissolved M353.2 - Automatetl Cadmium FD Sample was received and analyzed past holding time. <br /> Reduction <br />WG165631 Nitrite as N, dissolved M353.2 -AUlomatetl Catlmium FD Sample was received and analyzed past holding time. <br /> Reduction <br /> M353.2 -Automated Cadmium RA Relative Percent Difference (RPD) exceeded limb; sample <br /> Reduction concentrations are less than 10x the MDL. <br />L43874e2 WG165838 Manganese, dissolved M200.7 ICP kM One spike recovery was outside of the method limits; the <br /> duplicate spike and the method control recevedes were <br /> within the method limits. <br /> Potassium, dissolved M200.71CP AM One spike recovery was outside of the method limits; the <br /> duplicate spike and the methotl wntrol rewvedes were <br /> within the method limits. <br />WG165916 Selenium, dissolved SM 3114 B, AA-Hytlride @ Sample required dilution due to high concentration of target <br /> analyRe. <br />WG166263 Sotlium, tlissolve0 M200.71CP kM Ona spike recevery was outsitle of the method limits; the <br /> duplicate spike and the methotl control recoveries were <br /> within the methotl limits. <br />WG165838 Zinc, dissolved M200.7 ICP kM One spike recovery was outside of the method limits; the <br /> duplicate spike and the method control recevedes were <br /> within the method IimNS. <br />WG165720 Ntrate/Nprila as N, dissolved M353.2 -Automated Cadmium kB Sample was received and analyzed past holding time. <br /> Reduction <br />WG165631 Nitrite as N, dissolved M353.2 -Automated Cadmium HD Sample was received and analyzed past holding time. <br /> Reduction <br />EXTQUAL.11.20.02.01 <br />L43879: Page 21 of 32 <br />