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system includes six sedimentation ponds (Ponds 005, 006, 009, 015, 016 and 017). <br />A more complete discussion of this system is contained in Section III.C. of this <br />document. <br />Flow and water quality measurements are taken at all sedimentation ponds, in <br />accordance with the Colorado Discharge Permit System permit issued by the <br />Colorado Department of Public Health and Environment, Water Quality Control <br />Division. <br />The permit application contains provisions for ongoing surface water monitoring. <br />The water monitoring plan is detailed in Tab 15. <br />F. Probable Hydrologic Consequences <br />A determination of the probable hydrologic consequences of the mining and <br />reclamation activities at the Seneca II-W Mine site has been made by the applicant <br />and is found in Tab 17 of the permit application. This section includes an evaluation <br />of quantity and quality effects on ground and surface water systems and mitigative <br />measures to be taken both during and after mining. <br />The Probable Hydrologic Consequences section of this document is divided into two <br />main subsections: Ground Water Effects and Surface Water Effects. <br />Ground Water Effects <br />Probable hydrologic consequences to the ground water regime will be minor. <br />Localized effects to the hydrologic system will include: <br /> 1) the drawdown of ground water, due to pit dewatering, for a few hundred to <br /> perhaps 1,000 feet from the pit; <br />~`pti7 ~ <br />1` 2) possibly diminished quantity and quality of water in the Temple Well no. 1; and <br />(' ~ "' ` <br />0~ W ~ . (A' 3) the probable dewatering and degradation of quality in three to five springs in <br />the permit area, two of which are used for stock watering purposes; rJ <br /> <br />/~i; ~ 1 <br />4) / ' <br />the possible increase in water quantity and decrease in quay alluvial water <br /> in Hubberson Gulch and its unnamed tributazy along the access road, due to <br /> infiltration of spoils discharge; <br />5) the establishment of a relatively unconfined aquifer of poor quality in the <br />backfilled pits. A discussion of the potential impacts follows. <br />Seneca II-W Findings Document 26 November 3, 1999 <br />