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ACZ ~ ~ <br />acz /nborataries, /nc. Lab Sample ID: Ll618~-02 <br />30400 Downhill Drive Client Sample ID: Mine Face <br />Steamboat Springy, CO 80487 Client Project ID: 2108 <br />(goo) 33iS4p3 ACZ Report ID: RG56476 <br />Homestake Mining Company Date Sampled: /!/5/97 09:30 <br />650 California St. Date Received: 11/7/97 <br />San FI-ancisco, CA 94108 Date Reported: 11//4/97 <br />Alan Cox <br />cc: Scott Randall Sample Matrix: Surface Water <br />Arsenic. total M206.2 GFAA 0030 mg/L 0.001 0.005 11/14/97 ss <br />Cadmium, total M200.71CP 0.183 mg/L 0.003 0.02 11/14/97 jaw <br />Copper, total M200.71CP 0.03 B mg/L 0.01 0.05 11/13/97 kr <br />Iran, total M200.7 ICP 6.59 mg/L 0.01 0.05 I (/13/97 kr <br />Lead, total M239.2 GFAA 0.190 mgR, 0.004 0.02 I (/13/97 ss <br />Manganese, total M200.71CP 3.730 mg/L 0.005 0.03 I (/13/97 kr <br />Mercury, total M245.1 CVAA U mg/L 0.0002 0.001 11/10/97 bg <br />Zinc, dissolved M200.71CP 8.11 mg/L 0.01 0.05 11/12/97 jaw <br />Zinc, total M200.7 ICP 7.34 mg/L 0.01 0.05 I (/13/97 kr <br />Total Hot Plate Digestion M3010ICP <br />Total Hot Plate Digestion M3010 GFAA <br />11/12/97 cj <br />I (/10/97 cj <br />Wet Chemist <br />Conduaiviry (1a,25C MI20.1 -Meter 397 umhos/cm I 10 11/12/97 ss <br />pH (lab) MI50.1-Electrometric 4.4 units 0.1 0.1 11/12/97 ss <br />Residue, Filterable (TDS) Qa I BOC M160.1 -Gravimctric 310 mg/L 10 20 11/7/97 ss/mh <br />Residue,Non-Filterable (TSS)(a~103-SC M160.2-Gravimetric 12 B mg/L 5 20 11/7F17 mh <br />Sulfue M375.J-Gravimetric IBO mg/L 10 20 11/12/97 ac <br />RECFivcn <br />Nov 2CI 1991 <br />Ehs~,, "ter-, <br />U = Analyze was analyzed for but not detected at the indicated MDL <br />~B =Analyze wncentration detected at a value between MDL and PQL <br />jPQL =Practical Quantitalion Limit <br />REPINtOt.03.95.01 Page 1 of 1 <br />/~ / /~/[~1 ~1 <br />Vice Presidcnl ofOpcrazions: Ralph PoWsen <br />