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0 2.05.3 <br />Water Tanks <br />A water tank located on the utility level which is above the portal level. The <br />fabricated steel tank is constructed on an oiled sand base. The tank is <br />approximately 52 feet in diameter and 32 feet high which provides a capacity <br />of approximately 500,000 gallons. <br />A 50,000 water tank for the B -Seam Portal is located above the portal, west <br />of the downhill conveyor transfer building. <br />A water tank is located above and west of the preparation plant. This tank <br />will have a capacity of about 140,000 gallons (32 foot diameter). <br />Water Treatment Building <br />This pre- engineered metal building is located east of the water tank. It is <br />approximately 14 feet by 20 feet with a 12 foot eave height. <br />Mine Vent Fans <br />A mine ventilation fan and steel duct work located at the return entry on the <br />. D -Seam portal level. The ventilation fan is approximately 8 -feet in diameter. <br />A similar fan was installed on the B -Seam portal bench. A new fan and fan <br />shaft was constructed at the utility bench during the last quarter of 1998 and <br />early 1999. The fan is 10 -feet in diameter. A standby ventilation fan was <br />constructed at the utility bench during 2003. This fan is a mirror image of the <br />existing 10 -foot diameter fan. See Maps 15 -2 and 33. A vent shaft was <br />developed in Freeman Gulch in 2000. The 400 foot deep exhaust shaft was <br />lined with a 6 -foot diameter steel liner plate. A 10 -foot diameter fan and <br />associated duct work was installed on the Hubbard Creek shaft during 2009. <br />Power Line <br />A high voltage overhead power line extends from the existing Delta Montrose <br />Electric Power line to the portal area substation. The power line is <br />approximately 5,600 feet long. Approximately 750 feet of new power line will <br />be constructed for the downhill conveyor. About 500 feet will be constructed <br />at the portal bench and 250 feet at the highway stockpile area. The B -Seam <br />portal bench required another 200 feet of powerline. <br />Non -Coal Waste Storage <br />Non -coal waste will be stored at the portal levels. Three concrete walls will <br />be constructed to form the storage area. The walls will form a u- shape. The <br />PR-12 2.05-16- 02/10 <br />