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1978: WL = 37.5 (17/9/78) Field Data not collected <br /> pH = 6.6 November 1983 - February 1984 <br /> EC = 7550 ur:hos/cm . Due to adverse weather. <br /> Water Temperature (°C) <br /> Range: 11.5 to 16.5 <br /> Average: 14.5 <br />40.0 - - - <br />J . <br />_ __ .. <br />50.0 _ ___ __ , <br />~ <br />_ __ <br />60.0 - <br />B.0 <br />a ~.o - - _ - <br /> --- ------'.c' - _ <br />s.o - - y - <br />ioooo - - <br />9000 - <br />U ----- ~~ <br />-- <br />W - <br />- - - <br />E000 - <br />E <br />7000 ~ ~ ' <br /> ~ <br />J F M A M J J A S 0 N D J F M A M J J A S 0 N D J F M A M J J A S 0 N C <br />1982 1983 1984- <br /> DH-172 <br /> o Depth to water, feet Figure 7. Field Data DH-172, Keenesburg Mine, 1982 -1984 <br /> ^ pH <br /> o Electrical Conductivity, µmhos/cm ( corrected to standard temp. 25°C) <br />.. ~ ~ • <br />