Laserfiche WebLink
<br /> <br />' 2.2 WATER-LEVEL ELEVATION <br />' Three piezometric maps of the Trapper Mine were developed to show <br />' the water level flow patterns for the QR, HI and Third White Sandstone <br />aquifers. Water levels from the Fall of 1986 were used in the <br />t development of these maps. <br />' Map No. 2-1 presents the water-level elevations for the QR <br />aquifer. The GP wells that are shown on this map are the new wells <br />' installed for the east area and baseline data for these wells are <br /> presently being collected. The water-level elevation is shown by the <br /> QR wells, GA1, GD2, GE1 and GF6. The ground-water flow in the QR <br />' aquifer is mainly to the north. Mining has affected the QR aqui fer <br /> only close to the D and E pits by causing drawdowr.~s very near the pit <br />' edges. Drawdowns in the QR aquifer in the far we:>tern portion of the <br /> Trapper permit near well GE1 are much more extensive than adja cent to <br />' <br /> the remainder of the Trapper Mine. These larger drawdowns are not <br />' thought to be caused by the Trapper dewatering. Some rise of the <br /> contour elevations north of these pits could have occurred by the <br />' movement of additional water into the QR aquifer in these areas. <br /> Gradients and flow directions in the QR aquifer for 1986 are simi lar <br /> <br /> to those observed in 1985. <br />' Map No. 2-2 presents the water-level elevation contours for the <br />' HI aquifer for the Fall of 1986. Wells GBS, GC1, GE2, and GF4 were <br />used in the development of this map. Flow in the HI aquifer has been <br />1 <br />' 2-7 <br />