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1 <br /> ' EXHIBIT K - Climate <br /> ' Climate for the region is mild and semi-arid. Average annual precipitation at the Rocky Flats Plant site, <br /> located about 2 1/4 miles southeast of the quarry site, is approximately 15 inches (U.S. Department of <br /> ' Energy, 1980). <br /> The 100-year, 24-hour maximum precipitation event for the area is estimated at 5.1 inches of rainfall <br /> (NOAA, 1973). The 100-year maximum intensity (thunderstorm) event is estimated to produce 6.5 <br /> ' inches per hour for 12 minutes, or 1.3 inches total rainfall (NOAA, 1973). <br /> Climatology data recorded at Boulder, Colorado, about 6 1/2 miles north of the site, indicate a monthly <br /> ' mean temperature of 52.6 degrees Fahrenheit. Monthly precipitation records for this station are given <br /> in Table K-1. <br /> ' Table K-1 Climatic Data <br /> ' Degrees Precipitation <br /> Fahrenheit Inches <br /> 1 <br /> January 34.0 .58 <br /> ' February 36.4 .83 <br /> March 39.4 1.61 <br /> April 49.4 1.83 <br /> May 59.5 3.28 <br /> June 68.3 2.20 <br /> July 74.7 1.86 <br /> August 72.7 1.70 <br /> ' September 64.5 1.52 <br /> October 54.4 1.25 <br /> November 42.0 .97 <br /> ' December 36.0 .64 <br /> Monthly Mean 52.6 <br /> ' Total Yearly 18.3 <br /> I <br /> K- 1 <br /> IFS-,-;-;]' SERGENT, HAUSKINS & BECKWITH <br /> I <br /> B I CONSULTING GEOTECHNICAL ENGINEERS <br /> PHOENIX•TUCSON•ALSUOUEROUE <br /> 1 DENVERMKEWOOD•SALT LAKE CITY•EL PASO•RENO/SPARKS <br />