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<br />Powderhorn Coal Company <br />Pa radon Hydrology System <br />S [alit Wa[er Levels <br />1/01/91 thiu 9/70/97 <br />Sample Site YSnL12 <br />Loea[ien <br />Surface Elevation <br />Well Drpl.li <br />Oate Depth Co Water Level <br />Wa[er (Ft) Elevation <br />(FL Above M;LJ <br />4/09/9] 3.97 7377 .16 <br />5/07/91 .17 7380 .96 <br />6/17/91 2.48 7778 .65 <br />7/17/91 5.10 7776 .03 <br />8/l0/91 6.08 '7375 .05 <br />9/23/91 6.18 7374 .95 <br />11/OB/91 5.51 7375 .62 <br />2/07/92 5.57 7375 .56 <br />4/03/92 .49 7380 .64 <br />5/ZB/92 1.48 7379 .65 <br />6/29/92 5.71 7]75 .42 <br />7/30/92 5.59 7775 .59 <br />9/16/92 6.90 7774 .23 <br />12/10/92 5.92 7775 .21 <br />2/28/97 5.92 7375 .71 <br />4/09/93 .51 7380 .62 <br />6/15/97 .54 7380 .59 <br />7/Ofi /93 2.35 7378 .78 <br />8/19/93 6.05 7375 .08 <br />10/21/93 5.28 7]75 .85 <br />5/02/99 .51 7380 .62 <br />10/04/94 8.04 7773 .09 <br />5/01/95 .46 7780 .67 <br />8/14/95 5.42 7375 .71 <br />10/05/95 5.21 7375. 92 <br />5/08/96 .24 7780. 89 <br />8/13/96 5.74 7375. 39 <br />10/02/96 5.69 7375 .44 <br />5/21/97 .59 7380 .54 <br />7/08/97 3.65 7377 .48 <br />Remarks <br />HAIL 83.5 GnL (1.56 BHV) <br />BAIL 46 GAL (1.04 BHV) <br />BAIL 39.6 GAL (0.80 BHV) <br />BAIL 51 GAL (1.03 BHV) <br />BAIL 51.4 GAL (1.03 BHV) <br />SUB PUMP 47.5 GAL 11.01 BHV) AT 20' <br />SUB PUMP 378 GAL (23 CVI AT JO' <br />BAIL 8.4 GAL. <br />BAIL 12 GAL. <br />BAIL 46 GAL. <br />BAIL 46 GAL. <br />SAMPLED <br />PUMP 45 CAL <br />PUMP 45 GAL <br />PUMP 95 GAL <br />PUMP 95 GAL AT 1 GPM <br />PUMP 95 GAL AT 1 GPM <br />PUMP 45 GAL AT 1 GPM <br />Average: 3.89 7377.24 <br />• <br />n <br />N <br />O~ <br />Conditions Specified: From 1/01/91 Ta 9/30/97...YSAL1 OR YSALI OR YSALB OR YSAL12 <br />