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the Colorado River Compact, which requires a flow at Lee Ferry of not less than 7.5 million acre-feet annually dur- ing any period of 10 consecutive years. “Tat is a very low risk for the Upper


Basin presently,” Ostler said. Several measures are being used to


protect and supplement the Upper Basin’s water, including cloud seeding in the state of Colorado, which is done by releasing small amounts of silver iodide during the appropriate atmospheric con- ditions that include super‐cooled water droplets. Te silver iodide particles band with water vapor to form ice crystals that turn into snowflakes and fall into a target area. Reclamation has praised cloud seed- ing for its operational flexibility and economic benefits when compared to other water supply options, and research has shown that cloud seeding increases precipitation and snow at higher eleva- tions. “We think we can generate a sig- nificant amount of additional runoff to the basin,” Ostler said. “It’s not unrea- sonable to think another 500,000 or 600,000 acre-feet could be generated from a fully optimized cloud seeding network.” For the CRSP reservoirs above Lake


Powell, there is talk of making changes to prevent Lake Powell’s elevation from dipping too far. “Droughts don’t occur uniformly


across the basin and often times it can be dry in one drainage basin and not so dry in another,” Ostler said. “We are working with Reclamation to identify a process where, in consultation with the four states, decisions could be made based on low elevations in Lake Powell that would trigger some extraordinary releases from the CRSP reservoirs in the four Upper Basin states at the right time to help avoid hitting the low power pool reservoir conditions. We believe it would provide the overall best benefit to all the water users in the Upper Basin consider- ing the impacts of power generation and the risks of not being able to comply with the Compact releases.”


August


3-5 Western Water Seminar sponsored by National Water Resources Association, Sun Valley, ID http://www.nwra.org/2016-western-water-seminar.html


11-12 Arizona Water Law sponsored by CLE International, Scottsdale, AZ http://www.cle.com/product.php?proid=1592&src=Featured&page= Arizona_Water_Law


24-26 Summer Conference sponsored by Colorado Water Congress, Steamboat Springs, CO http://www.cowatercongress.org/summer-conference.html


September


14-17 Arizona Hydrological Society Annual Symposium, Tucson, AZ http://ahssymposium.org/2016


15-16 New Mexico Water Law sponsored by CLE International, Santa Fe, NM http://www.cle.com/product.php?proid=1594&src=Featured&page= New_Mexico_Water_Law


29-30 Tribal Water Law sponsored by CLE International, Las Vegas, NV http://www.cle.com/product.php?proid=1596&src=Featured&page=Trib al_Water_Law


October


5 Colorado River: Pressing Issues & Latest Endeavors sponsored by CLE International, Phoenix, AZ http://www.cle.com/product.php?proid=1611&src=Featured&page= Colorado_River


5-7 WaterSmart Innovations 2016 Conference and Exposition, Las Vegas, NV http://www.watersmartinnovations.com


November


14-16 National Water Resources Association Annual Conference, Coronado, CA http://www.nwra.org/upcoming-conferences-workshops.html


December


14-16 Colorado River Water Users Association Conference sponsored by the Colorado River Water Users Association, Las Vegas, NV http://www.crwua.org


Check out the Foundation’s online calendar http://www.watereducation.org/ calendar/2015 for more events. And contact Sue McClurg with your calendar items from January 2017 through June 2017 for inclusion in the Winter issue of River Report, smcclurg@watereducation.org or 1401 21st Street, Suite 200, Sacramento, CA 95811


Summer 2016 • River Report • Colorado River Project • 9


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