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Superior Precision Analytical, /nc_ <br /> A member of ESSCON Environmental Support Service Consortium <br /> ANALYSIS FOR TOTAL METALS <br /> Quality Assurance and Control Data - Water <br /> Laboratory Number 92919 <br /> Method Spike <br /> Compound Blank RL Recovery Limits RPD <br /> (mg/L) (mg/L) (% ) M) (°s) <br /> i <br /> Cadmium (As) ND< 005 005 96/98 80-1.20 2% <br /> Chromium (Cr) ND<O 01 0 01 101/100 80-120 la <br /> Copper (Cu) ND<O 02 0 02 104/102 80-120 2°s <br /> Lead (Fe) ND<O 05 0 05 102/105 80-120 306 <br /> Nickel (Pb) ND<O 02 0 02 101/101 80-120 Oa <br /> Zinc (Zn) ND<O 02 0 02 102/103 80-120 to <br /> 0 <br /> Definitions <br /> ND Not Detected ff <br /> RPD Relative Percent Difference 14 <br /> RL = Reporting Limit a Y/ <br /> I /L = Parts per million (ppm) Senior Chemi <br /> Ile No 92919 Account Manager <br /> 00@fa-d La bWf tori 3s <br /> 825 Arnold Dr Suite 1 14 1555 Burke St Unit 1 309 S Cloverdale Sr Suite B 24 <br /> Martinez California 94553 San Francisco California 94124 Seattle Washington 98108 <br /> (510) 229-1512 / fax (510) 229-1526 (415) 64 7 2081 / fax (4 15) 82 1-7123 (206) 763-2992 / fax (206) 763-8129 <br />