Laserfiche WebLink
<br />LAKE POWELL <br />(COLORADO RIVER) <br /> <br />Water Year 1993 <br /> <br />Lake Powell, which is impounded by Glen Canyon Dam, is <br />operated as part of the Colorado River Storage Project <br />(CRSP) in accordance with governing compacts and laws to <br />provide conservation storage, river regulation, power <br />generation, recreation, and fish and wildlife enhancement. <br /> <br />Water years 1987 through 1992 were the six consecutive <br />years with lowest inflows on record. Because of this <br />extended drought, Lake Powell began water year 1993 at <br />elevation 1104.2 meters (3623.0 feet) with a live content of <br />17,374 million cubic meters (14,085,000 acre-feet) only 58 <br />percent of capacity. Due to an above normal inflow, Lake <br />Powell gained 5,847 million cubic meters (4,740,000 acre- <br />feet) of storage in water year 1993. Unregulated inflow into <br />Lake Powell for water year 1993 was 17,210 million cubic <br />meters (13,950,000 acre-feet), 116 percent of the long term <br />average. The peak regulated inflow to Lake Powell was <br />2,300 cubic meters per second (81,000 cubic feet per second) <br />on J one I, 1993. <br /> <br />ACTUAL RELEASES 1993 <br /> <br />IIIUJOIiI CUBIC IlII!TDt8 <br />1800 <br /> <br />TMOUIAJID ACR....IIT <br /> <br />... <br /> <br /> , <br /> 1 <br /> - \ <br /> / <br /> V 7 <br />.--- <br /> . <br /> <br />1100 <br /> <br />.1. <br /> <br />1200 <br /> <br />.72 <br /> <br />100 <br /> <br />.. <br /> <br />II <br /> <br />000 <br /> <br />.00 .... <br />'cf' #~ <f-c, .; ~ .". ~~ +~ ~+ ~ ~ , <br /> <br /> <br />Lake Powell finished water year 1993 at an elevation of <br />11163 meters (3662.5 feet) and storage of 23,221 million <br />cubic meters (18,825,000 acre-feet), n percent of capacity. <br /> <br />Beginning on August 7, 1991, test interim minimum and <br />maximum release rates and controlled fluctuations were <br />established below Glen Canyon Dam, pending development <br />and implementation of the interim criteria on November 1, <br />1991. The interim criteria are intended to reduce the effects <br />of power operations on downstream natural resources until <br />a Record of Decision is made on the Glen Canyon <br />Environmental Impact Statement. Lake Powell has a <br />minimum objective annual release of 10.1 billion cubic <br />meters (8.23 million acre-feet), as set forth in the Operating <br />Criteria. <br /> <br />LAKE POWELL <br /> <br />Reservoir <br /> <br />Storage Capacity <br />Normal Pool Elevation <br />Minimum Power Pool <br />Surface Area, full <br />Reservoir Length, full <br /> <br />30,001 million cubic metel"5 (24,322,()()) acre-feet) <br />1121.1 Mete" (3100.0 Feet) <br />1063.7 Mete:rs (3490.0 Feet <br />65,313 Hectares (161,390 Aaes) <br />299 Kilometers (186 Miles) <br /> <br />Powerolant <br /> <br />Number of Units <br />Total Capacity <br /> <br />8 <br />1,241.000 KW <br /> <br />13 <br />