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• 9. Any coal recovered incidental to this project will be in the form of cuttings <br />and would be disposed of in the mud pits <br />ANTICIPATED SCHEDULE <br />The construction and pre-drilling phase project activities described within this Minor <br />Revision application aze anticipated to commence as eazly as March 29, 2001. Duration <br />of the project will be a function of the success of the initial drilling, monitoring, and <br />effectiveness of de-gassing. Subsequent drilling may occur throughout the next several <br />months. An exception to the schedule would be if additional cultural cleazance surveys, <br />NEPA documentation, or T & E surveys, are required by the regulatory authorities. <br />MEASURES TO BE USED TO COMPLY WITH PERFORMANCE STANDARDS <br />FOR THE PROJECT (43 CFR 3484.1(al, 30 CFR 81 ~.l ~, and Colorado State Permanent <br />Program Rulesl <br />1. Operator shall comply with applicable requirements of surface management <br />agency, 30 CFR 81 x.15, or approved State program. <br />Mountain Coal has reviewed, and will comply with, all applicable requirements of <br />30 CFR 815.15 and the Colorado Mined Land Reclamation Regulations stated in <br />C.R.S. 34-33-]O1. <br />• 2. Install casing and blowout preventers in drillholes in known oil, gas, and <br />geothermal areas. <br />The West Flat Iron azea is not in a producing natural gas field. Gas is not known <br />to have been encountered in any of the previous drilling efforts in the area. Since <br />the proposed drilling will not penetrate the Rollins Sandstone or into the <br />underlying Nlancos Shale, blowout preventers will not be used. Casing will be set <br />in each hole as necessary to maintain circulation of cuttings to [he surface. <br />3. Drill hole plugging requirements. <br />Each drill hole will be plugged according to the requirements outlined in this <br />section: The hole will be plugged with cement from 50 feet below to 30 feet <br />above any coal bed over 4 feet thick and any aquifer. <br />The remainder of the hole will be filled with a completion mud (bentonite gel) <br />and drill cuttings or cement to within 5 feet of the surface. A cement surface plug <br />will be set, capped with an appropriately marked brass or aluminum monument, at <br />or below ground level. <br />1 <br />J <br />