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Gunnison River Below Tunnel <br />Average Monthly Flow <br />6000 <br /> <br /> <br /> <br />5000 007 <br />1911 <br />65 <br />800 <br />1 <br />f <br /> , <br />- <br />: <br />, <br />o <br /> <br /> <br />4000 - <br /> <br /> <br />L : 3000 <br />U <br />00 <br />20 -------- ----- - - - <br />- <br /> <br />1000 <br />--- <br />F <br />- - ---------- - - <br />-- ---------- - <br />- - - - ------- <br />____L - ----- <br />0 <br /> <br />Oct nov dec jan feb mar apr may jun jul aug sep <br />1911-65 1969-91 1992-99 <br />on the Aspinall Unit and its authorized purposes. It is planned that Reclamation will work with <br />the Colorado Water Conservation Board to analyze water right issues. <br />The overall goal of the RIP is to recover the endangered fish species while allowing water uses <br />and development to continue. The program serves as the reasonable and prudent alternative for <br />water development projects through a proactive and coordinated approach that stresses recovery <br />throughout the basin rather than developing separate reasonable and prudent alternatives for <br />individual water projects. <br />Previous biological opinions on two other Reclamation projects in the Colorado River Basin, the <br />Dallas Creek and Dolores Projects, depend on operations of the Aspinall Unit to offset their <br />depletion impacts. The RIP studies and biological opinion for the Aspinall Unit will help clarify <br />how these previous commitments will be met for endangered fish. <br />As part of the RIP activities specific to the Gunnison River Basin, in 1996 Reclamation <br />constructed the Redlands Fish Passageway around a private irrigation diversion dam. The <br />passageway is located approximately 2 miles upstream from the Gunnison's confluence with the <br />Colorado River. This recovery action included negotiation of a short-term agreement to provide <br />water from the Unit to operate the passageway. Operation and use of the passageway is being <br />monitored to verify native fish movement to historical habitat that had been blocked for over 70 <br />years. Non-native fish using the passageway are sorted from native fish to prevent competing <br />non-natives from entering Gunnison River habitat. The passageway appears to have succeeded <br />J Average Annual Runoff <br />! <br />? <br />----- ?- <br />- --- <br /> <br />I ? <br />_ - <br />- - <br />I <br /> <br />--?--- <br />i <br /> <br /> <br />- 1969-91: 894,800 <br /> <br />? <br />1992-99; 1,012,500 <br />? <br /> <br />i <br />- <br /> <br /> <br />- <br /> <br /> <br />? - ??? ?? <br /> <br /> <br /> <br /> i <br /> <br />A-6