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:stipulation No. <br />THE PERAIITTEE SHALL PREPARE A PLAId FOR THE ACCURATE AI?D <br />RELIABLE PIEASUREMENT OF f•1IIQE DISCHARGES AIdD f4IIdE INFLOI•JS <br />BENEATH CURTIS CREEK. THIS PLAtd SHALL BE SUBPIITTED TO <br />THE DIVISION FOR ITS APPROVAL WITHIN 30 DAYS OF THE <br />ISSUANCE OF THE PERMIT. <br />1JOrthern Coal's Plan: <br />~, <br />The Rienau 2 Mine is divided into 4 mayor sections: <br />West Alains, Northeast I9ains, 1st East, and Second East. <br />We have 4 water collection points, one for each section. <br />These points are delineated on the attached map. <br />Point A collects all the water from the 1st East Section, <br />and consequently the inflow from under Curtis Creek. <br />4Jhen the level in the sump gets high enough, a siphon <br />line takes it to the mine sump at Point C. A water <br />meter is installed on the siphon line to give a gallon- <br />age figure for water coming from 1st East. <br />Point B collects the water from the 2r7d East Section. <br />However, there is no mine inflow from Curtis Creek to <br />evaluate as the face is 300 feet from the Creek. This <br />water is pumped to the mine sump at Point C and a meter <br />on the line shows the contribution to the mine water. <br />Point C collects the water from lst East, 2nd East, ~~.d <br />the Northeast mains. It is then pumped up the hill ;,r <br />the West Mains Section a:here it flo~•rs to the main mi~-,c <br />sump at Point D. A meter on the line at Point C give. <br />a figure for gallonage mixed in with the West Plains. <br />Point D collects all the water from the entire mine. <br />After it has been held to allow settling of solids, _. <br />is pumped outside the mine to Point E where it is at.~_'.. <br />held and then discharged into Curtis Creek. A meter :... <br />the pump at Point D gives a figure for complete mine <br />discharge. <br />This plan allows for a determination of how much water <br />is yielded by each section o£ the mine, and the subse- <br />quent mine discharge. The following formulas, based o~: <br />the collection points, will demonstrate this: <br />1st East = Point A <br />2nd East = Point B <br />Northeast Mains= C - (A + B) <br />West Mains = D - C <br />Entire Mine = D ~ <br />• The readings of the meters will be done <br />.,,,~,~~ y;~,; ~ <br />I.lF~i1 N <br />J I..IC.J <br />m~~~~ p J RCCCAf1Ai'ItlN tlIVIS(Oll <br />OC of WaturaJ Resources <br />