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. Summary of 2002-03 Wintertime Program Reports . Central Colorado Rockies Program: In August, 2002 Denver Water, the Upper Arkansas Water Conservancy District, the Southeastern Colorado Water Conservancy District and Colorado Springs Utilities applied for a permit for a total of 54 generators. This program enhances snowpack, reservoir storage and streamflow in the South Platte, Colorado and Arkansas Basins, The project was packaged together the permitting and reporting essentially broke into two permits, one for Denver Water and one for project sponsors in the Arkansas basin. Preliminary analysis from Denver Water at the public hearing estimated an additional 48,000 Acre-feet of water yield in a good year at a cost of approximately $13 an Acre-foot. The Central Rockies Program funded by Denver Water, the Upper Arkansas WCD and the Southeastern Colorado WCD is similar to the Sierra Nevada Mountains program that is seeded and funded both by Nevada and California. . The Application for this program came to the CWCB as one project but during the process it was determined to create two permits: one for the Denver Water, and project sponsors in the Colorado and South Platte Basins and 2) for the Arkansas Basin project sponsors. . Central Colorado Mountains/Denver Water Department Program, The total programs cost for the first year was $667,570, A total of 40 events were seeded over 96 days, The total amount of seeding hours by all generators was 20,623,92 and the total AgI output was 122,040 grams, Target Control Evaluation of the Ceutral Rockies Program: This report prepared for the Denver Water Board dated May 2003 was prepared by Don Griffith, Mark Solak and David Yorty of North American Weather Consultants, Inc. of Sandy UT, This report uses a statistical regression that is a relationship between 22 target points and 8 control points and is based on precipitation data form November 1 through March 31, 2003, The conclusions state that observed/predicted rations of Ll4 for snowpack and 1.17 for precipitation are Streamflow Forecasts suggestive of 14% and 17% increases" ,however May 1, 2003 the reader is reminded that single-season indications must be viewed with caution. Much of the precipitation fell during relatively few heavy storm periods. One storm in particularly on March 18-19 brought record setting snows to the Front Range, NA WC will prepare a final evaluation of the 02-03 season to be published mid September 2003, Winter seeding programs have been conducted for 19 consecutive years in central and southern Utah. North. American Weather Consultants operates 130 generators in Utah, the nations second driest state, These results are similar to other target/control evaluations in Utah that show an average of 14.6% increase in precipitation in the target area over what was predicted for the control area precipitation. ~NRCS ~U:mJIRl:~H~; (O,"~N~IOOO .rltlU """, .:>150%olAYffllle .13o-150%n!Av~"'9~ .l1c.'2~orAver3ge ~oo.la9%clAveraoe m70.e9%d'wer~e .SO-~rjA;tnlll~ .<5lJI'<<A~rd'}p. DN(jForeca\! '-'Map-Sasn8CMldary ~'Naters!:1ed8(yJnd3ty 7