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• <br />Project: Cripple Creek Hydrogeochemistry <br />Task: Neutralization of Pyrite Oxidation Products <br />T 604-224-4331 F:604-224-0540 <br />• <br />ABA ANALYSES <br />t'gvizonscitec.com <br />www.vizonscitec.com <br />• <br />Date: 4/8/2008 <br />Page 5-1 <br />Vizon SciTec Inc. 3650 Wesbrook Mall Vancouver, BC Canada V6S 21-2 , Z 0 M <br />S C[ T E C <br />Results of ABA for Cripple Creek Samples - March 2006 <br /> <br />Sample <br />Paste pH <br /> <br />s.u <br />C02 <br /> <br />wt.% CaC03 <br /> <br />Equiv. <br />wt.% Total <br /> <br />Sulfur <br />wt.% Sulfate <br /> <br />Sulfur <br />wt.% Sulfide <br /> <br />Sulfur <br />wt.% <br />AGPt'? <br /> <br />t/kt* <br />South Cresson 6.3 0.7 15.9 3.52 0.03 3.49 109 <br />Cresson Pipe (calcite) 7.6 7.8 177 2.16 0.16 2.00 62 <br />Squaw Gulch (calcite) 8.0 21.6 491 4.16 1.53 2.63 82 <br />South Cresson-Cresson Pipe (calcite mix) 7.6 4.2 94.3 2.74 0.08 2.66 83 <br />South Cresson-Squaw Gulch (calcite mix) 7.7 11.9 271 3.65 1.06 2.59 81 <br />Cresson Pi a-Squaw Gulch calcite mix 7.8 13.9 315 2.91 1.03 1.88 59 <br />Detection Limits 0.1 0.01 0.02 0.01 <br />Vizon Method Number 7160 7460 Calc. 7400 7410 Calc. Calc. <br />rv.IV*. <br />t/kt = tons CaC03 per 1000 tons <br />ABA method used: Modified ABA Method (Lawrence et al., 1989) <br />(1) AGP = "Maximum Potential Acidity" <br />(2) ANP = "Neutralization Potential" <br />(3) NNP = "Net Neutralization Potential" <br />Adrian Brown Consultants, Inc.