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<br /> <br /> <br />o <br /> <br />Hon-AAC and To~al Return Flow Credi~s <br /> <br />Yuma Proiect - Reserva~ion Division CUnassianedl - These returns are from <br />drains which collect return flow in a manner that does not allow any <br />determination to be made how much of the flow comes from the Indian Unit or <br />the Bard Unit of the Reservation Division. Nonetheless, the flows are <br />quantifiable and need to be eharged to the State of California. The <br />eomputation of these flows may be done using the following formula' <br /> <br /> <br />'. ) <br /> <br />c:~ <br />.... <br />~ <br />~ <br /> <br />Reservation Division Returns (Unaassigned) = 4 ~ SB - AAC MRF <br /> <br />where the terms on the right hand side of the equation have the same meaning <br />as those used in Section lA. and the AAC MRF is the total measured return flow <br />from the AAC for the time period. If the terms for the MRF from Seetion lA <br />are substituted into the above formula it ean be seen that the unassigned <br />return flows for the Reservation Division are' <br /> <br />Reservation Division Returns (Unassigned) = 4 ~ sa - SB + 11 - 3 - 2 - 6 + 7. <br /> <br />Sinee the flow at sa (Araz) and Reservation Main Drain No.4 is the full flow <br />from the Reservation Division drainage system. it can be seen that the <br />unassigned flows are simply those Reservation Division drain flows not <br />aecounted for in the AAC MRF. (See drainage facilities map and preceding sub- <br />section for data sources.) It may be well to note here that some of the <br />drainage credited as return flow from the Reservation Division to the State of <br />California is loss from the Yuma Main Canal of water diverted by Arizona <br />entities. <br /> <br />Ci~ of Yuma - The total return flows for the City of Yuma have the following <br />four co..ponen'ts: <br /> <br />1.) AAC returns already described in Section lA <br />2.) Returns froJA the City of YUII\a Water Treatment Plant <br />3.) The difference between the total water diverted at the Munieipal <br />Water Plant and that pumped to storage for use at that loeation <br />4.) The difference between the total water diverted at the East Mesa <br />PUII\ping Plant and that pumped to storage for use at that location. <br /> <br />The reeords for the Water Treatment Plant are obtained from YFO for monthly <br />and yearly aceounting. The amounts diverted and pumped to storage at the <br />Munieipal Water Plant and the East Mesa Pumping Plant are furnished monthly by <br />the City of Yuma and are filed in the Decree Accounting binder. YPO also <br /> <br />46 <br /> <br />- <br />