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The GMR is in a granite deposit with nominal sulfur containing mineralization. In this area,ground <br /> water makes its way to the Arkansas River via underground fissures. Baseline water quality data <br /> indicates that should sufficient water reach the surface and ultimately to the Arkansas River,the water <br /> quality of the Arkansas River would not be impacted. <br /> Also due to the nominal sulfur containing mineralization and based on tailings characterization <br /> performed to date,toxic or acid forming material is not anticipated. Since the GMR has very low sulfur <br /> concentrations, acidic leachate is not likely to form thus mobilization of heavy metals is also not likely. <br /> None the less,to be especially protective of the environment, a contact water pond will be constructed <br /> at the toe of the tailings embankment that will serve as a collection point for all water generated or that <br /> comes in contact with tailings. The contact water pond was sized to be effective during a 100-year <br /> storm event. The contents of the pond will be monitored and mostly likely released to the natural <br /> waterway. In the event upset conditions are discovered,the water will not be released but rather <br /> treated and reused in the mill. <br /> 6.4.21(7) Facilities Evaluation <br /> (b) Designated Chemicals <br /> Designated chemicals handling is described in Section 6.4.21(6) (b) and (c) above. <br /> (c) Naturally Occurring Geological and Geochemical Conditions <br /> The project is in Fremont County, Colorado, % mile north of Fremont County Road 3, also known <br /> as Temple Canyon Road, and 1% miles west of the Dawson Ranch subdivision near Canon City, <br /> Colorado.The proposed project limits encompass about 82 acres.The project and natural <br /> drainage way the project will discharge into does not enter the Dawson Ranch community to the <br /> east.The project lies 1.4 miles south of Grape Creek. Surface water flows into an unnamed <br /> natural drainage at the site then northeasterly for about 2% miles before it discharges into <br /> Grape Creek.The permit boundary and project location are shown below as Figure 6.4.21(7) <br /> Vicinity and Drainage Map. <br /> 70 <br />