Laserfiche WebLink
<br />Arkansas River Water Needs Assessment - Section 1. Executive Summary <br /> <br />Water Needed to Protect or <br />Promote Critical Resource <br />Values <br /> <br />Overview of Natural Resource Water <br />Preferences by Location <br /> <br />Arkansas River Flow Preferences <br /> <br />When flow needs for identified resource values <br />along the Arkansas River corridor are compared, <br />thete is significant similarity of needs during most <br /> <br />of the water year as shown in Table 1-1. Since <br />1990, BOR has been able to operate the Fryingpan- <br />Arkansas Ptoject to meet many of these resource <br />needs while still meeting the water delivery and <br />storage requirements of water users. Prior to 1990, <br />large releases of water in May-June, combined with <br />lower flows the remainder of the year, created <br />negative impacts to the fishety. This section btiefly <br />summarizes flow needs during different time <br />periods, and it provides information about BOR's <br />typical flow management practices during those <br />periods. <br /> <br />November I to Start of Spring Runoff (typically <br />around April 15) - The river's fish population and <br />angling opportunities are well-supported by flows <br /> <br />TABLE I-I <br />Arkansas River <br />Summary of Water Needs for Resource Values <br /> <br />Month Reference Fisheries Boating Needs Angling Needs Wildlife Other <br /> Points: Needs and Needs <br /> 19B2.1994 Riparian <br /> Wellsville Needs <br /> average daily <br /> flows (cfs) Rafting Kayaking Fly Spin Float <br />Novem ber 439 Flow Flow Flow Natural <br /> Preference Pref Pref Hydrograph <br />December 452 300-500 400 700 (variability <br /> - - of flows is <br />January 446 500 1,200 positive) <br />February 454 f Dilution <br /> Except at of early <br /> Flow high flows, snow- <br />March 481 Pref changes in melt <br /> 900 cfs do not benefits <br />April 490 Flow Flow - have large water <br /> Preference Preference 1,200 '.'1 quality <br />May 1,189 Spring 1,500 1,300 during <br /> runoff flow - - March <br /> for channel 2,000 1,500 and <br />June 2.568 maintenance April <br /> FIOW+ Lowest <br />July 1,727 flows <br /> impact <br />August 956 Preference ground- <br /> 300 - 500 water <br />September 477 ~ levels <br /> ~ <br />October 402 <br /> <br />Water Needed to Protect or Promote Critical Resource Values - 1-11 <br />