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<br /> <br />SpectlClJlar Morrow PoInt Dam. <br /> <br />Upon 30 days advance notice to the United <br />States Section, Mexico has the right to <br />modify, within the total schedule, any monthly <br />Quantity prescribed by the schedula by not <br />more than 20 percent. During water year <br />1982, Mexico received a total delivery of about <br />1,412,000 acr&-feet at the Northerly <br />International Boundary. <br /> <br />Of the 1,412,000 acre-feet of mainstream <br />Colorado River water reaching the Boundary, <br />about 1,600 acre-feet was delivered through <br />Pilot Knob Powerplant wasteway from the <br />Ail-American Canal. An estimated 352,000 <br />acre-feet was released through Laguna Dam. <br />The remainder of the flow at the Northerly <br />International Boundary was made up of return <br />flows to the ColoradO River below laguna <br />Dam, and returns to the Gila River below the <br />gaging station near Dome. <br /> <br />Because of the current water supply <br />conditions, the United States will make <br />scheduled deliveries of 1,700,000 acre-feet of <br />Colorado River water to the Republic of <br />Mexico In calendar year 1983. ThIs release of <br />Nater Is based upon average runoff conditions <br />~or the year. Should the runoff In water year <br />1983 be substantially above average, <br />Ilgnlfleant releases for flood control purposes <br />:ould be required from Hoover Dam. <br />~epresentatrves of the Republic of Mexico will <br />>e kept informed ot operating schedules <br />hrough the United States Section of the <br />~ommlsslon. <br /> <br /> <br />Canal f1XCIo'lat,\on .1935. <br /> <br />Regulatory Waste. <br />Deliveries to Mexico consist of river water <br />delivered to Imperial Dam and waste and <br />drainage return flows from water users below <br />Imperial Dam. In addition to assuring normal <br />water deliveries, the small amount of <br />regulatory storage space.!n Imperial, laguna, <br />and Senator Wash Reservoirs was used at <br />times to limit potential downstream flood <br />damages during water year.1982. Regulatory <br />waste for water year 1983 will depend on the <br />actual hydrologic conditions occurring during <br />that time, <br />