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Minor Revision #138 <br />Modifications to Permit <br />The following changes are requested for Permit #C-1981-18: <br />Changed RS-4 from a four-foot diameter shaft to a two-foot shaft plus an 11-inch <br />borehole. Added a 10-inch drill hole for breathable air at rock dust hole RDH-2. <br />Activities associated with these changes account for 0.4 acres of additional disturbance <br />and 350 cubic yards of cut-and-fill. Map 154 and pages III-26 and III-35 were modified <br />to address these changes. <br />A short segment of road was added north of the slot storage to provide a safe winter <br />access for propane truck going to the Emergency Discharge Tower. Map 112 was <br />modified to address this change. No additional disturbance is necessary as the path is <br />across existing disturbance. An 18" X 40' CMP culvert will be placed through the <br />channel that this road will cross. Sizing for this culvert relies on the justification <br />provided and approved for the 18" culvert immediately downstream. <br />Pages affected: <br />III-26 Modifications to Section III.A.8 <br />III-27 Repagination <br />III-28 Repagination <br />III-35 Added discussion concerning the breathable air hole at RDH-2. <br />V-24 Modified Table V-3 for added disturbance acreage. <br />Map 112 Modified to show additional road segment with culvert. <br />Map 154 Modified to show breathable air hole.