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'lhe 1993 Annual Hydrology Report narrative following is divided into fifteen <br />parts. Discussion is presented in aoco~ince with each monitoring category <br />identified in Table 1. Summary of Hydrologic Monitoring Stations -Required <br />Monitorirw for CDVCC 1993 Annual Hvdroloav Report. Table 1 immediately follows <br />the narrative in this report and precedes the 1993 data summaries provids3 for <br />each station. Zhe individual station data simmiaries are also ordered in <br />accordance with Table 1. Maps depicting the locations of all hydrologic <br />monitoring stations are appended to this report. Water quality monitoring <br />includes field parameters (Table 2), water quality parameters (Table 3) and NPDFS <br />parameters ('T`able 4). Ponds were sampled for water quality only when dischazge <br />or outflow was oaarrring. Ponds in the COVCC permit area typically are spring- <br />fed or seep-fad and e~ibit diffuse nonconcentrated areas of inflc~a. Tn many <br />instances, the pond outlets present the only point of concentrated flow at which <br />• flow measurements and field parameters can be obtained. Stagnant water in ponds <br />was not sailed since water quality results would show the effects of evaporation <br />and stock use and could not be used to evaluate potential mine impacts. The 1993 <br />samples and most of the previous water quality samples were analyzed by ACZ <br />Laboratories, Inc. Steamboat Springs, Colorado, a USF3?A certified laboratory. <br />This report includes data collected specifically to meet requirements of the <br />Colorado Division of Minerals and Geology (C~IG), as well as data collected to <br />meet requirements of the Colorado Wastewater Discharge Permit System (NPDES <br />permit) . A list of all monitoring stations within the angle~f~lraw of the mines <br />is presented as Table 5. Seven new stations were added to Table 5 for the 1993 <br />report. Springs number 30, aril 10-10, and ponds 10-1, 10-2, 10-3, 10-4, and 10- <br />11 are now shown as being undermined in Table 5. All seven of these sites are <br />erxxmq~assed by the angle-of-draw as projected from Panel Y which was advance <br />• mined during 1993. <br />3 <br />