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bond calculation estimate as part of the NOI re\ie\v Sage Creek ma\ choose to file a corporate surety <br />for the least cost estimate. <br />The tullo\\ing sections describe the specific proposed reclamation practices to be used to return areas <br />disturbed by the exploration activities to a stable condition and productive use. <br />Drill I tole or Well Plueging Sealing and Abandonment- All drillholes \\I <br />ill he plugged, sealed. and <br />abandoned unless tile\ are converted into a grollnd\\atCI* monitor \\ell. Deeper drillholes \\ III he <br />plugged \\ fill it III ill inlunl of6 cubic \ards (about 750 feet) ofcement slurry - this is the oft=road <br />transport capacity of'a cement truck. Shallowcr drillholes \\ III he plugged \\I'ith bct\\een <br />I -5 <br />and <br />cubic \ards of cement slurp (as appropriate). The cement slurry \\ III he tremicd into tile drillhole <br />front the bottom ol'the hide. up through the target units. This \\ ill effectively plug and seal all coal <br />beds and potential g?'ound\\ater aquifers to prevent vertical gruund\\ater migration and cross- <br />contamination ofaquiters. <br />An\ remaining open drillhole interval \\ill be tilled Mill other suitable plugging material (plug gel or <br />\rndor-specific tyrout compounds) and/or drill cuttings to \\i(hin feet ol'the ground surface and the <br />drillhole \\ Ill be sealed \\ith a surface plug consisting ofat Ica,-,t i feet ol'ccment. Int'Ormation on <br />potenlial plugging materials. that are generally superior to conventional cement uruut. is pt'ovidcd in <br />Appendix 1.. Surface casino. if used to keep the drillhole open. \\ill he cut-ollf at or bclo\\ grade. <br />Geotechnical holes \\ill he tilled in \\ith cuttings to within 5 feet ol'the ground surface. The <br />remaining -5 feet "ill be sealed using bcntonite chips. Reclaimed drillhole locations \\ Ill he marked <br />\\ fill either a steel fence post or if metal survey cap at or bclo\\ ground level (used \\here apricultural <br />cropping occurs). All drillhole locations \\111 he accurately surveyed. and distinctly numbered. <br />allo\\Ing fur future identification. Abandonment reports \\ill he prepared and tiled. as required by <br />applicable regulations. When no longer needed. its noted above. the _eround\\ater monitor \\ells \\ Ill <br />he plugged. sealed. and abandoned in essentiall\ the same manner. \NHll the stipulation that cement <br />slurr\ mll he used tier plugging, the entire \%ell interval. <br />Exploration Site Rcclamattow Follo\\ Ing completion ofexplorahon activities (drilling. sampling, <br />and ocophysical logging) fi)r each exploration site. any drillholes not converted to monitoring \\ells <br />\\ill he plugged. sealed and abandoned. as pre\iousl\ described. and exploration disturbance \\ill he <br />reclaimed. In accordance \\ith Rules .'.0.'?(?)(f) and T.' 1.4(4), excavations. artificial flat areas. and <br />embankments created during exploration \\ ill be returned to their original contour pronlptl\ after such <br />features are no longer needed lOr coal exploration. Site reclamation \\III I0lIo\\ completion of' <br />exploration activities fur each site as soon as reasonabl\ practical. recogill/III,g ho\\ever. that certain <br />reclamation activities Ina\ be coordinated to take advantage of equipment and personnel availahilM. <br />Seeding of reclaimed exploration sites \\ ill occur during the first favorable seeding period (typicalIN <br />late fall ]preferred]. or early spring) tullo\\ing completion of site reclamation. The tOllo\\ing <br />sununarizes the steps and general sequence for reclamation of exploration disturbance areas. <br />1 ) On completion ofexploration activities at a glen site. all trash. debris. and exploration <br />equipment and supplies \% ill be renw\cd from the site. <br />2) Drillinz fluids in mud pits \\ ill he allo\\ed to dry. or they may he pumped from the mud <br />pit fur oft'-site disposal. Mud pits or excavated trenches will be backfillcd \\;th the excavated <br />material and compacted to minimize an\ settling. Am excess drill cuttings \\111 he spread <br />o\er the drill pad. and the drill pads regraded to approximate their original configuration and <br />blend \\ ith the adjacent terrain. <br />1 'stockpiled or \\indro\\ed -A" and -,B" horizon material \vIll be redistributed at it uniform <br />thickncs, o\cr disturbed areas. <br />S,J,i;e 1 'rrr4 l9rgdiY - _'llb9 :\'f 1/ <br />04 1P, W1