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IV. GI:ULUuY - RULE 2Ur1.b STIPULATIONS - i'nese are concerns that ca)ld Ue stipulated as conditions to the permit. To characterire the roof and floor rock to provide baseline data, Empire Eneryy Corporation obtained samples of the material placed on the refuse pile ;inU co~wnitted Co sa~npliny file refuse material from Four points along the perimeter of the refuse pile upon the completion of every two foot list as described on pagz 111-'L 3. This information and sampling progran is adequate to characterize the ~:+as'.e development :~.aterial un the refuse pile anu roof anu Floor niateridl. Luplr~l_ricryy -or'unr'.iLiim i~ dlvi rriliiirNd Ln rliire'Irriir~ Llic )U'L-riluiuy nyuroloyic environment. To characterize thz post-mining hydrologic environ~aen analysis is required of Che ruck and coal strata in ,)oth ~uines since boCh mines vrill be Flooded. Also, o~ice the mine workings nave :looded, there is the potential fur the seines to discharge mine water since adjacent aquifers are unaer artesian pressures surficient to produce flow; to Lhe surface. empire Eneryy Corporation shall conduct stagnant-leach tests of the afrected rock strata and the rock dust ~natcrials from each mine. At a minimum, tihe applicant shall collect from each mice, three cortrposite samples of ten Feet of roof, Five fact of floor ar~d the entire thic4;ness of coal ~.vith stringers and splits. These composite samples shall oe crus'ned tc a sand size or smaller. Eacf•~ of the three crushed samples s~~all than be ui•dided into three equal splits and accurately weighed. Twc of the weiynea splits shall be placed in clean reaction vessels and the third split saved. A weighted quantity of rock dust material equal Co that used in the mines should then be added to each reaction vessel. A known volwne of deionized distilled ~'++a ter shall ue auded to each reaction vessel, the vessel shall be sealed and kept at a constanC temperature equivalent to the mean ground. water temperature in the area of the mines. Tne number of reaction vessels required would amount to twelve (two reaction vessels for each of three composite sar,.ples from two mines). Cae ruction vessel for each composite sample shall have its contents filterea thirty days after beginning the study and then another set of reacticr~ vessels shall have their contents filtered sixty days after beginr~ir,g the study. The filtrate from each reaction vessel shall be analyzed for the r•+ater quality par,uuctcrs listed on ALG)chnient A. The data ;hall be reporteu .is a weight uF soluble ion per unit weight of original sa~nplz (ie. mg/i:g soluble calcium, etc.). one sp~,'.ican,: shall nav~• all laboratory procedures approved by tn,c uivision prior to conducting the leach test to ensure correlation ~dith she field co~;ditions. Empire Energy Corporation snail use the results to uiscuss the post-;pining environment and include the discussion in tha uiscussiun of probable hydrologic consequences.