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~ACZ ~ ~ <br />ACZ Labornromrs, Inc. Lab Sample ID: L20903-02 <br />3o4nn Dr,~nbdr Drn•e Received Client Sample ID: 10-98 Trench /nle( <br />Sreambonr Jpnngs, CO 80487 Client Project ID: ?108 <br />(ROOD 334-5493 NO V 3 ACZ Report ID: RG8/049 <br /> 0 1998 <br />Homestake Mining Company Dale Sampled: /0/27/98 /5:4~ <br />650 California St. puran Date Received: /0/39/98 <br />San Francisco, CA 94108 gp F7eld ~ <br />DlVlsfon of Mi <br />gp Date Reported: l l/11/98 <br />Alan Cox nerals 8 G <br />l~, <br />cc: Scott Randall Sample MaVix: Surjoce Wa(er <br />M~etals Analysis <br />Aluminum weal M200.71CP 0.41 me/L 0.03 0.2 11/9/98 kr <br />Arsenic, dissolved M206.2 GFAA 0.006 mg/L 0.001 0.005 11/5/98 jb <br />Arsenic, weal M206.2 GFAA 0.01 I mg/L 0.001 0.005 11/10/98 jb <br />Cadmium. dissolved M200.7 ICP 0.088 mg/L 0.003 0.02 11/9/98 kr <br />Cadmum, wlnl M200.71CP 0.079 mg/L 0.003 0.02 II/9/98 kr <br />Copper, dissolved M200.71CP U mg/L 001 0.05 II/9/98 kr <br />Cnppcr. total M200.71CP 0.01 B mg/L 0.01 0.05 II/9/98 kr <br />Iron. dissolved M200.71CP 0.05 mg/L. 0.01 0.05 II/5/98 kr <br />Irnn, total M200.7 ICP 0.66 mgt 0.01 0.05 I (/10/98 kr <br />Lend, dissolved M200.71CP 0.19 B mg/L 0.04 0.2 11/5/98 kr <br />Lead, total M200.71CP 0.24 mg/L 0.04 0.2 11/9/98 kr <br />Manganese. dissolved M200.71CP 1.930 mg/L 0.005 0.03 11/9/98 kr <br />Manganese. toml M200.71CP 1.830 mg/L 0.005 0.07 11/9/98 kr <br />Mercury, di~solvcd M245.1 CVAA U mg/L 0.0002 0.001 11/5/98 bg <br />bkrcun', total M245.1 CVAA U mg/L 0.0002 0.001 11/5/98 bg <br />"Lint, dissolved M200.7 ICP 3 70 mg/L 0.01 0.05 11/9/98 kr <br />Zmc, total M200.71C'P 3.42 mg/L 0.01 0.05 11/9/98 kr <br />Metals <br />Total Hot Plate Digestion M3010 ICP 11/7/98 ms <br />Tutal Hul Plate Digestion A13010 GFAA I (/10/98 ms <br />We[ Chemistry <br />I~,.. r <br />Conduaivily u25C A1120I -Meter 228 umhos/cm I 10 IOR9/96 sts <br />pH (lab) M 150.1 - Electrometric 5.8 uniLS 0.1 0.1 1029/98 sCs <br />Residue. Filternble tTDS) (<i1,I80C M160 I -Gravimetric 170 mg/L 10 20 10/30/98 mh <br />Residue. Non-Filterable (TSS) (r~103-5C M 160.2 -Gravimetric U mg/L 5 20 10/29/98 cd/mh <br />Sulfate M375.3-Gravimetric 100 mg/L 10 20 10/30/96 sts <br />Note: The Manganese value is estimated due [o matrix interferences. <br />bn1~~i&'.Anitth~'t s1t ~ I <br />U Analyze was analyzed for but not detected at the indicated MDL <br />B = Analy(e concentration detected at a value between MDL and PQL <br />PQL =Practical Qminlitation Limit <br />~~~ <br />Vice President of Operations: Ralph Poulsen <br />REPIN101c 01.96.01 Page 1 of 1 <br />