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Exhibit Page 40 • <br />EXHIBIT K -CLIMATE INFORMATION <br />DOLORES/STAPLETON AREA, MONTEZUMA COUNTY, COLORADO: <br />SUMMARY: Average annual precipitation is 18-19 inches of which approximately 50% <br />falls during the growing season. Optimum growing season for native plants is from April <br />to September. The frost-free period varies from 75 to 100 days. Temperature ranges <br />from -20's to +90's F. Much of the precipitation falls as snow and winters are generally <br />closed. Summers are warm or hot, winters cold. Site has high water table and may <br />flood during spring snowmelt. <br />1. Source(s) of Information: US Bureau of Reclamation, Dolores Project; <br />Montezuma County Economic Development; The Weather Channel; USDA Natural <br />Resources Conservation Service <br />2. Annual Precipitation: <br />Table K-1. Dolores Precipitation Table <br />Inlnches Jan Feb Mar Apr M ~ dun Jul Aug ep Oct Nov Dec nnual <br />Precipitation 1.64 1.44 1.88 1.44 t:~ .7Q 1.47 t.94 149 1.86 1.70 1.64 18.45 <br />Snowfall 17.8 14.7 13.6 .2 1:0 .0 .0 .0 0 1.8 8.9 12.6 81.5 <br />No further information available for Dolores. Variability shown by information for Cortez <br />(25 miles SW of site) <br />Normal 13.21 in <br />Maximum - 1965 21.14 in <br />Minimum - 1989 5.23 in <br />Cortez. Colorado 1961-1990 <br />3. Temperature: <br />Table K-2. Cortez Temperature Table <br /> Jan Feb Mar Apr Ma Jun Jul Aug Se Oct Nau Dec Annual <br />Maximum 0.3 5.4 52.8 3.0 2.5 3.1 8.3 6.1 8. 7.2 2.8 2.3 4.6 <br />inimum 12.0 17.7 .9 30.4 38.1 5.8 3.5 52.3 4. 33.5 2. 14.6 32.5 <br />verage 6.2 1.6 38.4 6.7 55.3 4.5 0.9 9.2 1. 50.4 37.4 8.5 8.6 <br />Mean Annual 48.5 °F <br />Daily Maximum - 07/13/1971 101 °F <br />Daily Minimum - 02/08/1933 -31 °F <br />Cortez, Colorado 1429-1996 <br />Growing Season days <br />Elevation of irrigable area ft <br />4. General Climate: <br />Montezuma County, in the southwest corner of Colorado, is where the San Juan <br />Mountains meet the desert canyon country. The area has milder winters than most of <br />Four States Aggregates, LLC 30 DEC 2000 <br />Application for Permit: Line Camp Pit FSA-LCP-D1-001 <br />