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• 2.05.3 <br />quantity and quality, as well as other environmental resources of the stream will <br />not be adversely affected. The Operator placed stream buffer zone signs east of <br />the disturbed area that clearly show the area that will not be disturbed. The signs <br />were placed on the east side of the Hubbard Creek Road. <br />During 2007 and 2008 the Operator will drill a ventilation shaft along Hubbard <br />Creek from a dell site west of Hubbard Creek. A portion of the drill site is within <br />100 feet of Hubbard Creek, a perennial stream. Rule 4.05.18 requires the DRMS <br />make a finding that authorizes any proposed disturbance within 100 feet of a <br />perennial stream. The DRMS made a finding based on the small disturbance <br />involved, that sediment control measures will be utilized, that water encountered <br />during shaft construction will be contained, treated through settling, sampled and <br />discharged through the NPDES permit for outfall 009, that any drilling fluids will <br />be contained in a cuttings pit ortank, that the drilling mud will have a bentonite <br />clay base and will be disposed of in the Bowie No. 2 waste disposal site, that no <br />riparian vegetation is in the area of planned disturbance and that the operations <br />will be conducted in accordance with the conditions of surface use as stated in <br />the Decision Memo by the USDA-Forest Service for this project. <br />During April and May 2008 a monitoring well was drilled near the mouth of Dove <br />Gulch. The well was drilled on the Hubbard Creek road so no dell pad is <br />required. Drilling "mud" will be circulated through a stock tank so no mud pit v~,ill <br />• be required. The purpose of the monitoring well is to determine the nature, quality <br />and extent of water in the old D-Seam workings so they can be dewatered. <br />During 2008 a monitoring well was drilled to monitor the water in the D-Seam. <br />The monitoring well was drilled on the Hubbard Creek road near the mouth of <br />Dove Gulch so a drill pad was not required. The monitoring well confirmed the <br />necessity of drilling a well to dewater the D-Seam prior to undermining by the B- <br />Seam. <br />During late 2008 a dewatering well will be installed in the DSeam near the Mouth <br />of Dove Gulch. Water from the well will be piped to the active B-Seam workings <br />through the nearby ventilation shaft. A pump powered by a diesel generator will <br />be installed in the well. A six inch diameter water line will be installed from the <br />dewatering well to and into the shaft. The 1,000 foot long water line will buried <br />along the inside edge of Hubbard Creek road. <br />Technical revision no. 52 provides for the installation of thirteen gob vent holes <br />over the next three years. Six in 2008, four in 2009 and three in 2010. <br /> <br />TR-58 2.05 - 35i - 11/08 <br />/q FP~c'v~D <br />I L/~-z/a <br />