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Superior Precision Ana ical, Inc. <br /> 815 Arrtc*J Urive Sade 114 1 Wirtinoz, Callfornia 91553 ■ (510) 719-1j 12 t Wx (5101 119-1516 <br /> ANALYSIS kOR CADMIUM, CHROMIUM, COPPER, LEAD, NICKEL, & ZINC <br /> QuallLy ASSurance and Control Data - Water <br /> Laboratory Number 89739 <br /> Average <br /> Method ansa ke <br /> Compound Blank PQL Recovery IJIMIt's RPD <br /> (mg/r') (mg/L) M <br /> Ccidmxum (Cd) 0 . 01 193 5 <br /> C:hX01lt1uM (Cr) NDc0 05 0 . 05 104 75-A25 1% <br /> Copper (CU) ND<0 05 0 . 05 107% '15-125 1% <br /> Lead (Pb) ND<O . 1 0 . 1 109% 75-125 2% <br /> Na.ckel (Ni) ND<0 . 05 0 . 05 10% 75-125 1% <br /> Zine (lr)) ND.O 05 0 05 112% 75-125 3% <br /> Definition© <br /> ND = Not DeteCted RPU = ReldLive P -ej)t. Ulfforance <br /> PQL = Practical Quant i Lai i on Limit <br /> File No. 1:39734 <br /> Sento Chemist <br /> Account Manager <br /> Page 3 of I <br /> I (Milled !�Ixsr��it�rrr ti <br />