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--~' _ <br />ACZ <br />ACZ fabarororirs, lnc. Lab Sample 1D: LS250-01 <br />30400 Downhifl Drive Client Sample lD: TPW-1 <br />srcamboal Springy, CO 804x7 Client Project ID: <br />(800) 334-549J ACZ Report ID: RG7570 <br />Twin Pines No. 2 Mine Date Sampled: 4/7/95 <br />921 Harrison Date Received: 4//2/95 <br />Canyon Ciry, CO 81212 Date Reported: 5/8/95 <br />L.G. White <br /> Sample Matrix: Surface Water <br />Metals Anal sis <br />Aluminum, dissolved M200.71CP U mg/L 0.03 0.2 421/95 fP <br />Arsenic, dissolved M206.2 GFAA 0.003 B mg/L 0.001 0.005 4/19/95 sh <br />Bomn, dissolved M200.71CP 0.05 B mg/L 0.01 0.05 421/95 fp <br />Cadmium, dissolved M200.71CP 0.010 B mg/L 0.003 0.02 421/95 fp <br />Calcium, dissolved M200.7 ICP 3.4 mg/L 0.2 I SRAS fp <br />Copper, dissolved M200.71CP U mg/L 0.01 0.05 421/95 fp <br />Iron, dissolved M200.71CP 0.13 mg/L 0.01 0.05 421/95 fp <br />Lead, dissolved M200.71CP U mgR. 0.02 0.1 421/95 fp <br />Magnesium, dissolved M200.7 ICP 0.5 B mg/L 0.2 I 5/L95 (p <br />Manganese, dissolvcd M200.71CP 0.027 mg/L 0.005 0.01 421/95 fp <br />Mercury, dissolvcd M245.1 CVAA U mg/L 0.0002 0.001 420/95 rd <br />Molybdenum, dissolved M200.71CP U mgR- 0.01 0.05 421/95 fp <br />Potazsium, dissolved M200.7 lCP 1.8 mg/L 0.3 1 5/1/95 fp <br />Selenium, dissolved SM 3500-Se C, AA-Hydride U mg/L 0.001 0.005 4/17/95 rd <br />Sodium, dissolved M200.7 ICP 242 mg/L 0.3 I 5/L95 (p <br />Zinc, dissolvcd M200.71CP 0.03 B mg/L 0.01 0.05 421/95 (p <br />Wet Chemist <br />Alkalinity as CaC03 M310.1 <br />Bicarbonate az CeC03 502 mg/L 2 10 52/95 kh <br />Carbonate as CaC03 U mg/L 2 10 5295 kh <br />Hydroxide as CeC03 U mg/L 2 10 SR195 kh <br />Total Alkalinity 502 mg/L 2 10 52/95 kh <br />Cation-Anion Balance Calculation <br />Cation-Anion Balance 1.8 % 5/L95 dv <br />Sum oCAnions 10.56 meq/L 52/95 dv <br />Sum of Cations 10.94 meq/L 52/95 dv <br />Chloride M325.2-Colorimetric (RFA) 5 mg/L I 5 421/95 hm <br />Conductivity (a)25C M120.1-Meter 947 um hos/cm I 10 4/17/95 be <br />Fluoride M340.2-ISE 3 B mg/L 1 5 4/19/95 kh <br />Hardness as CaC03 Calculation hazed on dissolved Mg & Ca I 1 mg/L I 7 52/95 dv <br />Lab Filtration ••• 4/13/95 kh <br />Lab Filtration & Acidification ••• 4/13/95 kh <br />.. rte®. ., <br />U = Analyse was analyzed for but not detected n <br />B =Analyse concentrazion detected at a value between MDL and PQL //~ , / ~~)r.K <br />PQL =Practical Quantitation Limit /r Y <br />Vice President of Operations: Ralph Poulsen <br />REPIN00103.95.01 Page 1 of 2 <br />