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• monitoring those locations situated adjacent to or over the idled F~St mire <br />workings or in areas rat projected for development within the ctn rent permit <br />In the fall of 1993, C~OVOC requested the Division of Minerals and Geology to <br />approve via technical revision a significant reduction in the required hydrologic <br />monitoring program in effect at the Orchard Valley mine. The reduction request <br />was supported by discussion and docimientation which demonstrated that nume~.rous <br />required hydrologic monitoring sites were either located entirely outside of the <br />area of projected mine ing~acts given current mine plans, or were located adjacent <br />to or over the Fast mine and had not shown any impacts to date with the extensive <br />data collected since the mine was idled. The proposed technical revision <br />requested that monitoring of those sites defined to be outside the area of <br />• projected mine impacts be permanently discontinued. For those sites located <br />over the ~St mine, no adverse mine-related impacts had become evident in data <br />collected since the mine was idled and sufficient data had been obtained to <br />provide ~arative information in the event suspected impacts were to develop <br />in the future. The proposed technical revision requested a temporary suspension <br />of monitoring at those sites associated with the previously developed areas the <br />Fast mine and with areas of the Fast mine not projected for development in the <br />current permit term. Monitoring at the Fast mine associated locations was to be <br />renewed prior to additional Fast mine development taking place. The technical <br />revision request was subsequently approved in essentially the same form as it was <br />submitted. ?he Division requested the continued periodic monitoring of certain <br />adjudicated water rights within the permit area regardless of their location with <br />respect mine development. This request and the subsequent inclusion of specified <br />• sites in the continuing monitoring network constituted the primary difference <br />between the original application and the finally approved monitoring program. <br />2 <br />