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V. Rule 4.05 Hydrologic Balance <br />A. Water Quality Standards and Effluent Limitations <br />1. The applicant has established drainage systems, Sediment Pond 2, and treatment <br />facilities to meet the effluent limitations of 4.05.2 and the applicable State and <br />Federal water quality requirements for downstream receiving waters. [Rule 4.05.2 <br />(PAP, Section 2.05.3, page 105)]. CEC requested, and the Colorado Department of <br />Public Health and Environment (CDPHE) approved, the expiration of the Colorado <br />Dischazge Permit System permit at the site. The CPDS permit expired on June 30, <br />1997. <br />B. Ground Water Monitoring Plan <br />The ground water monitoring plan is as follows [Rule 4.05.13(1)]: <br />Monitoring Wells <br />The table below summarizes well designation, top of casing elevation and aquifer <br />monitored (PAP, page 57a}. <br />Well Elev Aquifer Location <br /> <br />FPW 4780 Ennis Draw Mine <br />DH96 4764 Ennis Draw Downstream from Mine <br />DH122 4814 Ennis Draw Upstream from Mine <br />SMW-2 4803 Reclaimed Spoil Mine <br />AMW-1 4804 Undisturbed Overburden Mine-Downstream/Ash <br />AMW-2 4811 Reclaimed Spoil Mine-Downstream/Ash <br />Dry at Bottom of Ash Elevation <br />Well sampling and water levels of subsurface water aze taken from Wells SMW-2, AMW-l, <br />FPW, DH96 and DH122. Wells aze sampled quarterly (PAP, page 56). <br />Sampling parameters are {PAP, page 57): <br />Calcium -dissolved <br />Iron -dissolved <br />Magnesium -dissolved <br />Permit Renewal OS Findings <br />October 30, 2006 <br />Page 18 of 25 Pages <br />