Laserfiche WebLink
<br />~ <br /> <br />~ <br />~ <br />~' <br /> <br /> <br /> <br />Calcula~ion of Return Flow Credi~s Alonq the <br />All-American Canal <br /> <br />1. Calcula~e Measured Return Flows CMRF) <br /> <br />~ <br /> <br />MRF = Araz - 11 + 3 + 2 + 6 - 7 <br /> <br />Araz, 11.3.2.6.7. are drains in the Reservation Division of the Yuma Projec~ <br />(see attached map ftDrainage Facilities"). All values appear on the GS monthly <br />provisional and yearly final listings. Araz drain is also known as drain 8B. <br /> <br />2. Calcula~e Total Canal Losses (TCL) <br /> <br />TCL = QIMP - CQRMC + QTITSINK + QYAQUI + QPONTIAC+ QYMSD + <br />QWALAPAI + QPKPW + Ql117J <br /> <br />3. Calculate Unmeasured Re~rn Flow <br /> <br />URF = TCL - CMRF + EVAP + PHTJ where <br /> <br />URF = Unmeasured Return Flow <br /> <br />TCL = Total Canal Losses (Station 60 - Station 1117) <br /> <br />MRF = Measured Return Flow <br /> <br />PHT = Phreataphyte Consumptive Use (Net Annual = 4000 AF) <br /> <br />EVA? = Evaporation Station 60 to Station 1117 (Between <br />6.5~475 and 7~475 AF) <br /> <br />Station 60 is the point downstream of Imperial Dam where discharge from <br />Imperial Dam into the AAC is measured. Annual phreatophyte and evaporation <br />values sho~d be distributed in an appropriate manner through the year for <br />monthly computations. Should the calculation of URF be zero or negative. a <br />value of zero for the UHF is used in Step S. <br /> <br />43 <br />