Laserfiche WebLink
<br />AZ Return flow South Gila Valley wells (DPOC's) 56981 <br />AZ Return flow YlIM Mesa Outlet Drain 81 19856 * <br />AZ Return flow protective and regulatory pumping unit CI 382 * <br />AZ Estimated unmeasured groundwater return flow 01 21063 <br />AZ Return flow share of Gi la Main Canal loss EI -667 * <br />AZ Subtotal return flow FI 107839 107840 check from above <br />AZ Consumptive Use (see note above) 158122 158121 check from above <br />AZ (A) Total for the North Gila VaLley, The YU'lla Irrigation and the YlJl1a Mesa Irrigation and Drainage Districts, and IUnit BI. <br />AZ (B) Estimated at 85 percent of the Yuma Mesa Outlet Drain with balance credited to IUnit BI. <br />AZ (C) Estimated at 85 percent of Protective and Regulatory Punping Unit with baLance credited to IUnit S'. <br />AZ (D) Estimated at 38 percent of the North Gila Valley Diversion at I~rial Dam plus 14 percent of YlIM Irrigation District diversion at <br />AZ Imperial Dam. (Based on analysis of the USGS Report 83.4220 entitled IA Method for Estimating Ground-Water Return Flow to the <br />AZ Lower CoLorado River in the Yuma Areal) <br />AZ (E) Diversion*milage weighted share of Gila Main Canal loss less canaL surface evaporation (1397 af/yr) and phreatophytes (2154 af/yr). <br />AZ (F) Additional unmeasured amounts of return flows from the Yuna Mesa Irrigation and Drainage District, 'Unit BI, the Cocopah Indian <br />AZ Reservation, and the Yuma County Water Users Association (YCWUA) are utilized to meet consumptive uses in the United States and in <br />AZ partiaL satisfaction of the Mexican Treaty obligation. Some of thes underground fLows are recovered by pumping from weLLs on the <br />AZ cocopah Indian Reservation and in the YCYUA area, and by some of the surface drains in the YCWUA area. Efforts will be made to at least <br />AZ quantify these return flows within broad limits by respective water user entities in future years. <br />AZ 81 Diversion adjusted for delivery to Mohave VaLley I. D. D. (Chesney). <br />AZ 91 Main Outlet Drain return fLow credit is measured flow at Station 0+00 and includes both Colorado River and Gila River water. RecLamation <br />AZ is working to develop a method to separate the different sources of return fLow and wiLL appLy that methodoLogy when avaiLable. <br /> <br />0"" <br />. <br />o <br />..... <br />(D <br />o <br />= <br />