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• <br />• <br />7.2 historic Mine Water Intonnatiun <br />Data gathered hetween 1993 and 1997 by Umetcu and the E3I.M shows that approximately 1 gpm of <br />water discharged from the Packrat portal up until the end of 1995 when the slow ceased. Small slows <br />of similar magnitude were also reported from the Lumsden #? and Lumsden ~5 (also known as the <br />Rajah 49) portals, which have also ceased. This cessation of flows from the portals was prohahly due <br />to decreasing ground water inflows into the mine workings over time as a result of aquifer depletion <br />and implementation of source control measures by U-netco. No discharges were reported from the <br />other portals in Lumsden C anyon including the I3onan-ra, Dutchman, I tuhhard, La Sal, La Salle # 1 and <br />~2, Lumsden #1 and W3, and Austin b4 even though they are all located at the downdip edge (northeast <br />edge) of the mesa. Map (;-3 shows the mapped extent of standing water in the Packrat Mine, <br />Whirlwind Decline, and l.umsdrn .,''2 Mine in 199. At that time, the Packrat and Lumsden ~?2 still hael <br />small portal discharges. <br />• <br />!~~'Itirl-rirrcl,llirzc~ 07 (rev. Aril 08) G-17 <br />Scrrrrpliirg n/~S~unclirrs,~ 6I'uh~r in 1'uckrul :4lirrc <br />