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<br />STATE OF COLORADO <br /> <br />Colorado Water Conservation Board <br /> <br />.. Department of Natural Resources <br />.. 1313 Shennan Street, Room 721 <br />Denver, Colorado 80203 <br />Phone: (303) 866.3441 <br />FAX: (303) 866-4474 <br />www.cwcb.state.co.us <br /> <br /> <br />MEMORANDUM <br /> <br />Bill Owens <br />Governor <br /> <br />TO: <br />FROM: <br /> <br />Colorado Water Conservation Board Members <br />Larry Lang, Chief, Flood Protection Program L-F t.-- <br />Paul Flack, Colorado State Parks <br />November 13, 2002 <br />Agenda Item 10.b - November 25-26,2002 CWCB Meeting <br />Chatfield Reservoir Drought Declaration <br /> <br />Greg E. Walcher <br />Executive Director <br /> <br />Date: <br />SUBJECT: <br /> <br />Rod Kuharich <br />eWeB Director <br /> <br />Dan McAuliffe <br />Deputy Director <br /> <br />Overview <br /> <br />CHATFIELD RESERVOIR WATER! The conservation pool in Chatfield Reservoir provides a valuable <br />water-based recreational complex to the State and provides the Denver Water Board (Denver Water) <br />opportunities for additional water for its users during times of "severe and prolonged drought conditions". <br />Unfortunately, the demand patterns for these two users can be on competing schedules with long-term <br />impacts to each other. <br /> <br />e The Colorado Water Conservation Board, Colorado State Parks, and Denver Water have met many times <br />regarding the joint water use concerns and have discussed the competing concerns regarding <br />CHATFIELD WATER with very little resolution to date! <br /> <br />Background Information <br /> <br />There are two 1979 agreements regarding the Colorado Water Conservation Board and Colorado Division <br />Parks and Outdoor Recreation (State) administration of storage space in Chatfield Reservoir. First, an <br />agreement was executed between the State of Colorado and the Corps of Engineers regarding reservoir <br />operations. Secondly, an agreement was executed between the State of Colorado and Denver Water <br />regarding the filling and management of the conservation pool. The permanent conservation pool has a <br />number oftarget storage volumes and elevations. <br />The operational volumes and elevations ofthe permanent conservation pool are: <br /> <br />· Top of Conservation Pool has a volume of 27,428 acre-feet at elevation 5432 feet msL <br />· Recognized minimum operational pool is 20,000 acre-feet at elevation 5426.9 feet msL <br />· Denver Water has a recognized annual water supply pool of 10,134 acre-feet between elevations <br />5432 t05423 feet msl, available at anytime. <br />· Additional Denver Water storage usage of 16,294 acre-feet pending a drought declaration by the <br />CWCB between elevations 5423 to 5382 feet msL <br /> <br />e The second agreement was signed by Governor Lamm, CWCB Director Felix Sparks, and State Parks <br />Director George O'Malley Jr. and City and County of Denver (Denver Water) and is dated April 3, 1979 <br /> <br />Flood Protection. Water Supply Planning and Finance. Stream and Lake Protection <br />Water Supply Protection. Conservation and Drought Planning <br />