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1 <br />expected to occur but were used for worst case analysis) the alluvial water <br />quality may be adversely impacted. Once plant operations are completed, the <br />'' capping and closure of the CKD storage area will prevent the hypothetical, high <br />leachate volumes from occurring. a <br /> 7.3.8 Summary <br /> The results of the solute transport analyses suggest that a hypothetical CKD <br /> leachate release will not adversely impact groundwater quality in either the St. <br />' Vrain Creek alluvium or the underlying Dakota Sandstone. The solute transport <br /> model predicts that the hypothetical leachate release will be sufficiently dispersed <br /> during transport so that the existing groundwater quality in the alluvium or the <br />' Dakota Sandstone is not adversely affected. The solute transport simulations <br /> were performed using conservative model parameters. Under these <br />' conservative conditions and assuming no constituent attenuation, the <br /> concentration of leachate constituents released to groundwater do not cause the <br />~ most stringent Colorado primary or secondary drinking water standards or <br />' agricultural water quality standards to be exceeded at the hypothetical receptor <br /> wells completed in the alluvium or the Dakota Sandstone. <br />1 <br /> <br /> <br />1 <br /> <br /> <br /> <br />1 <br /> <br />' 20 <br />