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<br />fatu,ary 1993 Xerr Coal Company ' 1991 Annual Hydrology Report • 9 <br />5.0 LOADOUT AREA ALLUVIAL GROUND WATER <br />Two alluvial wells (AP-1 and AP-2) were monitored for water levels on a weekly basis March <br />through June and monthly during July through September. Water samples were taken <br />monthly. The field data colletted are presented in Exhibit A, 1992 Field Data. Laboratory <br />analyses are presented in Exhibit E, 1992 Loadout Area Alluvial Water Quality. These data have <br />been summarized in Table 1, 1992 Ground Water Statistic. <br />The mean field and laboratory analyses values for the last six years are presented in Table 5, <br />Historic Loadou[ Area Alluvial Water Quality Data. Comparison of the values shows a general <br />decrease in values from 1991 data, but over the past six years there has been little overall change. <br />There are no apparent reasons for the 1991 [0 1992 variation other than seasonal and year-to- <br />year variations in precipitation and runoff which have significant impacts on alluvial ground <br />water quality. <br />~~ <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />1 <br />c~~out~atc)ucr:axvvs:ttvo.xrr <br />ovovn wm ACZ /nc. • P.O. 8os 770/8 • Stwmlaat SP.ing; Colorado 8077 • (303J 879fi1ti0 <br />