Laserfiche WebLink
These changes may lag the actual predp'dation vents due to the time it takes the head <br />change to move through the aquifer to the monitoring well. <br />Wells GP-5 and GP-6 are useful in defining natural variations in the QR aquifer for <br />2003. Water levels in wells GP-5 and GP-6 show a rising trend from 1995 through 1998 <br />with an overall gradual rise from 1998 to 2002. Water levels in these two wells have been <br />fairly steady the last two years. Well GP-8 has been used as a baseline for <br />preclpitation/recharge impacts on the Ia.M aquifer and meowed a significant decline in water <br />levels during 2001 through 2003. Mining is dose enough to this welt that its water level <br />n~ponses cannot be used relative to baseline wnditions for the last three years. <br />Figure A-1 presents water levels versus time for wells G&1, G&5, GF5 and P-5. <br />The wells are completed in the KI.M, HI, HI backfiN and 2nd White Sandstone aquifers, <br />respectively. Figure A-1 shows overall steady increases in water levels for well G&i since <br />air-I'~ft production ceased in 1993. Recovery in this welt may still be from the earlier air-1'rft • <br />production. Water levels in wells G&5 and GF5 gredualy declined in 2003, while water <br />levels in well P-5 stayed near the bottom of this well in 2003. Water level in HI well GP-7 <br />(Figure A-l I) shows a small decline in the HI aquifer for 2~3, which is probably natural, <br />Th~ well has to be used with caution as an indicator of natural changes due to the <br />doneness of mining. Water levels continue to rise in well GB-2, probably in response to <br />recovery at its location downgradient of a reclaimed pit (see Fgure A-2). An additional <br />large rise in the water level was observed in 2003 similar to the 2002 rise. <br />The GC wells (GC-1, GC-2, GG3, see Figure A-3) are located near the northeast <br />comer of the permit area (PA} slightly more than 1100 feet from mining activity in 2003. <br />These wells are completed in the HI, 3rd White and alluvial aquifers, respectively. The <br />water-level changes in these wells may not still be good indicators of natural recharge <br />2-4 <br />