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<br />Major Storage Projects <br /> <br />Reservoir <br /> <br />Normal Storage <br />(acre-feet) <br />603,465* <br />357,678 <br />265,552 <br />141,000* <br />129,432 <br />119,877 <br />71,000 <br />40,960 <br />39,804 <br />28,000 <br />11,500 <br />11,530 <br />9,500 <br />8,638 <br />4,600 <br />1,772 <br />3,933 <br />2,471 <br />5,640 <br /> <br />John Martin Reservoir <br />Pueblo Reservoir <br />Great Plains Reservoirs <br />Twin Lakes <br />Turquoise Reservoir <br />Trinidad Reservoir <br />Adobe Creek Reservoir <br />Cuchara Valley Reservoir <br />Lake Meredith <br />Horse Creek Reservoir <br />Clear Creek Reservoir <br />Mt. Elbert Forebay <br />Lake Henry <br />St. Charles Reservoir No.3 <br />Holbrook Reservoir <br />Deweese-Dye Reservoir <br />Brush Hollow Reservoir <br />Mt. Pisgah Reservoir <br />Dye Reservoir <br /> <br />Sources: Colorado Division of Water Resources Office of Dam Safety <br />Database; *Colorado Water Conservation Board <br /> <br />Hydrological Variations <br /> <br />Examples of annual and seasonal variations are shown below: <br /> <br />Gage <br /> <br />Maximum <br />Recorded <br />Flow (cfs) <br />6,930 (1994) <br />3,330 (1987) <br /> <br />Minimum <br />Recorded <br />Flow (cfs) <br />90 (1978) <br />3 (1990) <br /> <br />Near Nepesta <br />Near Granada <br /> <br />Source: U. S. Geological Survey Water Data Reports <br /> <br />An n ual Di scharges <br /> <br />Arkansas River Near Granada, Colorado <br /> <br />140 <br /> <br />GJ <br />GJ <br />~ 120 <br />(.) <br />C'l:I <br />g 100 <br />~ <br /> <br />o Avg. Year <br />. Max. Year <br />o Min. Year <br /> <br />Average Annual Discharge: <br />Minimum Annual Discharge: <br />Maximum Annual Discharge: <br /> <br />146,415 AF <br />42,942 AF (1992) <br />432,349 AF (1987) <br /> <br />GJ 80 <br />~ <br />C'l:I <br />J: <br />(.) <br />I/) 60 <br />is <br />>- <br />:i: <br />1: 40 <br />0 <br />2: <br />GJ <br />0'1 20 <br />~ <br />GJ <br />> <br /><( <br /> 0 <br /> <br /> <br />Oet Nov Dee Jan Feb Mar Apr May Jun Jul Aug Sep <br /> <br />Source: U. S. Geological Survey Water Data Reports <br /> <br />Major Water Rights Calls <br /> <br />Major water rights calls during the winter come from <br />John Martin Reservoir (1948), the Winter Water <br />Storage Program (1910) and Pueblo Reservoir <br />(1962). During the irrigation season, priority <br />calls generally originate from the senior <br />irrigation rights, including the Colorado Canal <br />(1890), Fort Lyon Nos. 2 (1887) and 3 (1893), <br />Holbrook (1889), Catlin (1887), Highline (1890), Otero <br />(1890), Consolidated (1888), and Amity (1887). The <br />Fort Lyon Storage (1906) right may also call during the <br />irrigation season. <br /> <br />The available capacity for exchange between water <br />rights diverting downstream from Pueblo to points <br />of diversion or storage upstream from Pueblo <br />(e.g., Pueblo, Twin Lakes and Turquoise Reservoirs) is an <br />effective means of water resource management in the <br />Arkansas Basin. <br /> <br />The Division 2 Engineer acts as the Operations Secretary <br />to the Arkansas River Compact Administration. In this <br />capacity, the Engineer is charged with conducting the <br />operations of John Martin Reservoir during each Com- <br />pact year (November 1 - October 31) according to the <br />John Martin Reservoir Operating Plan. This is an impor- <br />tant component in the operation and management of <br />Arkansas River Basin water resources. <br /> <br />Implementation of the Amended Groundwater Measure- <br />ment and Use Rules has resulted in nearly real-time <br />administration of conjunctive use of groundwater and <br />surface water in the basin. <br /> <br />Source: Colorado Water Conservation Board and <br />Division 2 Engineer's Office <br /> <br />Stream and Lake Protection <br /> <br />There are 126 instream flow segments totaling approxi- <br />mately 607 stream miles in this basin. There are also 85 <br />lakes with decreed natural lake levels. These decreed <br />water rights are held by the CWCB to "protect the <br />natural environment to a reasonable degree." The <br />decreed amount for each of these instream flow <br />segments and natural lakes is based on the flow or <br />lake level required to maintain the water-dependent <br />natural environment. <br /> <br />Source: Colorado Water Conservation Board <br /> <br />< Arkansas River Basin Facts - 2 ) <br />