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• <br /> <br />NUCLA MINE HATER LEVEL HYOROGRAPH <br />MONITORING HELL GN-N4(NM0004) <br />GEOLOGIC UNIT DAKOTA COAL <br />5580 <br />N <br />A <br />T <br />E <br />R <br />L <br />E <br />V <br />E <br />L <br />C A <br />~ 8 <br />N O <br />(1'I <br />V <br />E <br />M <br />5 <br />L <br />I <br />N <br />F <br />E <br />'c <br />T <br />SSo0 <br />I <br />I <br />I <br />155EP89 150CT89 14NOV89 140EC89 13JAN90 12FEB90 14MAR90 13APR90 13MAV90 12JUN90 12JU190 11AUG90 lOSEP90 100CT90 <br /> <br />DATE <br />