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<br />Introduction <br />TAB 8 <br />CLIMATOLOGICAL INFORMATION <br />In preparation to reopen the Nucla Mine after the period of temporary cessation, Peabody <br />Coal Company submitted to the Colorado Department of Health (CDOH), Air Pollution Control <br />Division an "Air Pollutant Emission Notice" (APEN) (February 19, 1986). iab 24 contains <br />copies of the APEN and the response from CDOH, respectively, which exempts the Nucla Mine <br />from the permitting requirements of the Air Pollution Control Division. <br />No climatological data is available at the Nucla Mine. A National Weather Service Station <br />does exist in the town of Norwood, Colorado approximately 10 miles southeast of the Nucla <br />Mine. The Norwood station has a record of precipitation and temperature for a period of <br />52 years and 51 years, respectively. A second National Weather Service Station exists in <br />the town of Uravan, approximately 8 miles northwest of the mine. The Uravan station has a <br />record of precipitation and temperature for a period of 26 years and 25 years, <br />• respectively. <br />Climatological Summary <br />Included below, for background purposes, is the Narrative Climatological Summary for Grand <br />Junction, Colorado. <br />"Located in a large mountain valley, the junction of the Colorado and Gunnison <br />Rivers, on the west slope of the Rockies, Grand Junction has a climate marked by <br />the wide seasonal range usual to interior localities at this latitude. Thanks, <br />however, to the protective topography of the vicinity, sudden and severe weather <br />changes are very infrequent. Elevation of the valley floor ranges from 4,400 to <br />4,800 feet above sea level, with mountains on all sides at distances of from 10 <br />to 60 miles, reaching heights of 9,000 to over 12,000 feet. <br />"This mountain valley location, with attendant "valley breezes" provides <br />protection from spring and fall frosts, resulting in a growing season averaging <br />• 191 days in the city of Grand Junction. This value varies considerably in the <br />8-1 Revised 04/11/88 <br />