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2014-03-18_REPORT - C1981010 (5)
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2014-03-18_REPORT - C1981010 (5)
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Last modified
3/29/2017 12:50:52 PM
Creation date
3/18/2014 1:16:51 PM
Metadata
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Template:
DRMS Permit Index
Permit No
C1981010
IBM Index Class Name
Report
Doc Date
3/18/2014
From
Trapper Mining, Inc
To
DRMS
Annual Report Year
2013
Permit Index Doc Type
Hydrology Report
Email Name
JLE
SB1
Media Type
D
Archive
No
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decline in 2001 in well GP -8 and continued on a smaller decline rate in 2002 through 2005 with a <br />water level rise in 2006 and steady levels in 2007 through 2010. A small overall water level rise was <br />observed in 2011 which was followed by a gradual decline in 2012 and 2013. A significant amount <br />of well dewatering occurred from the G pit area in 2013. <br />Steady water levels had been observed in the previous four years in well GMP -1 while a <br />small increase was observed in 2005 through 2011. The previous ten years show a water level rise <br />due to the movement of Pit A to the east of this area A very gradual decline was observed in 2012 <br />and 2013. No dewatering was produced from the pits in 2013. The decrease in water levels in wells <br />GD -2 and GD -3 in 2006 were caused by deep exploration drilling in this area Water levels in these <br />two wells gradually rose in 2007 and overall increased a larger amount in 2008. Water levels <br />continued to overall gradually rise through 2013 in well GD -2 but declined in well GD -3. The water <br />levels in KLM well GP -2 overall increased from 2008 through 2011 but steadily declined in 2012 <br />and 2013. The previous decline could have been caused by the decrease in recharge and mining in <br />this area but the present decline are likely due to less recharge. Water level in well GP -5 is useful in <br />defining natural variations in the QR aquifer for 2013. Water levels in well GP -5 show a rising trend <br />from 1993 through 1998 with a smaller rising trend from 1998 to 2002. Water levels in this well then <br />were fairly steady for five years with another overall rise from 2007 through 2011. Water levels in <br />GP -5 were fairly steady in 2012 and 2013 likely due to less recharge. Water -level changes are <br />discussed in more detail in the following section. <br />2.1.2 WATER-LEVEL CHANGES <br />Water -level changes for 2013 are presented in Figures A -1 through A -11 in Appendix A. <br />The table in Appendix A lists all historical data for the Trapper Mine. The wells are grouped on the <br />water -level plots according to aquifer where possible but, in most cases, are grouped by similar <br />Trapper Mining Company 2 -3 <br />2013 Annual Report <br />
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