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Last modified
8/16/2009 3:10:23 PM
Creation date
10/4/2006 7:08:30 AM
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Board Meetings
Board Meeting Date
9/25/2000
Description
ISF Section - Resolved Case - Case No. 5-90CW138, McClung (South Fork Rio Grande)
Board Meetings - Doc Type
Memo
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<br />~~~ ~v vv ~~.~ <br /> <br />ient sy:- Cavis Engineer~ngJ Inc; <br /> <br />'19589 3712; <br /> <br />Sep.13.00 10:58AM; <br /> <br />. <br /> <br />Appendix I. Calculations for Consumptive Use on a Monthly Basis <br />Figures for these calculations are taken from Table 1. <br /> <br />1. Determine demand during winter months. <br /> <br />Total Demand: 84.47 afJyr (Allowance for our-of-priority use is not actually <br />diverted from the river.) <br />Out-of-doors Planting Demand: L22 + 0.30 ,;, 1.52-af/yr . <br /> <br />"0..__._ ~-_. _ _ _ ,_ <br />Year-round In-house Demand: 84.47 - 1.52 = 82.95 aflyr-- <br />.,.0' .::.~..:;=::-.- - <br /> <br />Monthly In-house Demand: 82.95/12" 6.91 af/mo <br /> <br />Winter Monthly Demand: 6.91 afltno <br /> <br />6.91ac. fi .. 12mtl . yr . day. hr .. 43,560fi2 = 0.115cft <br />mo yr 365days 24hr 3600sec ac <br /> <br />. <br /> <br />2. Determine demand during peak summer months. <br />Assume out-of-doors planting demand occurs over three months during the summer. <br /> <br />Out-of-doors Planting Demand: L52 afJyr <br /> <br />Monthly out-of-doors planting demand: 1.52/3 = 0.51 afJrrJI:) <br /> <br />Monthly In-house Demand: 82.95/12 = 6.91 aflmo <br /> <br />Summer Peak Monthly Demand: 6.91 + 0.5l = 7.42 aflmo <br /> <br />7.420c. ft . 12mo .. yr .. day. hr . 43,560ftl <br />mo yr 365d;:zys 24hr 3600 sec QC <br /> <br />O.I23cft <br /> <br />3, Determine depletive effect on eweB instrcam flows. <br /> <br />Winter CWeB instream flow: 25 cfs <br /> <br />Winter depletive effect: <br /> <br />O.1l5cfs .100" 0.46% <br />25cfs <br /> <br />,- <br /> <br />Swnrner CWCB instream flow: 50 cfs <br /> <br />. <br /> <br />Suznnter depletiv~ effect: <br /> <br />O.12Jcft . 100 _ 0.25% <br />50cft <br /> <br />j . V~ <br /> <br />Page 215 <br />
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