Feb. 3, 1944 59 STAT.] MEXICO-WATER UTILIZATION - e. 4, 1944 Nov. 14,1944 prior to the expiration of said period, Mexico will cooperate with the United States to relieve, in times of drought, any lack of water needed to irrigate the lands now under irrigation in the Lower Rio Grande Valley in the United States, and for this purpose Mexico will release water from El Azucar reservoir on the San Juan River and allow that water to run through its system of canals back into the San Juan River in order that the United States may divert such water from the Rio Grande (Rio Bravo). Such releases shall be made on condition that they do not affect the Mexican irrigation system, provided that Mexico shall, in any event, except in cases of extraordinary drought or serious accident to its hydraulic works, re- lease and make available to the United States for its use the quantities requested, under the following conditions: that during the said eight years there shall be made available a total of 160,000 acre-feet (197,358,000 cubic me- ters) and up to 40,000 acre-feet (49,340,000 cubic meters) in any one year; that the water shall be made available as requested at rates not exceeding 750 cubic feet (21.2 cubic meters) per second; that when the rates of flow re- quested and made available have been more than 500 cubic feet (14.2 cubic meters) per second the period of release shall not extend beyond fifteen consecutive days; and that at least thirty days must elapse between any two periods of release during which rates of flow in excess of 500 cubic feet (14.2 cubic meters) per second have been requested and made available. In addition to the guaranteed flow, Mexico shall release from El Azficar reservoir and conduct se pone en operaci6n antes de aquel plazo, Mexico cooperara con los Estados Unidos para aliviar, en periodos de escasez, la falta del agua necesaria para regar las tierras que actualmente se riegan en el valle del Bajo Rio Bravo (Grande), en los Estados Unidos, y, al efecto, Mexico extraera agua de la presa de El Azucar en el Rio San Juan y la dejara correr por medio de su sistema de canales al rio San Juan, con objeto de que los Estados Unidos puedan deri- varla del rio Bravo (Grande). Dichas extracciones se haran siem- pre que no afecten la operaci6n del sistema de riego mexicano; sin embargo, M6xico se obliga, salvo casos de escasez extraordinaria o de serio accidente a sus obras hidraulicas, a dejar salir y a abastecer los volumenes pedidos por los Estados Unidos, para su uso, bajo las siguientes condi- ciones: que en los ocho afios cita- dos se abastecera un total de 197 358 000 metros cdbicos (160 000 acres pies) y, en un afto determinado, un volumen hasta de 49 340 000 metros cibicos (40 000 acres pies); que el agua se abastecerf a medida que sea solici- tada y en gastos que no excedan de 21.2 metros cdbicos (750 pies cubicos) por segundo; que cuando los gastos solicitados y abastecidos excedan de 14.2 metros cibicos (500 pies cubicos) por segundo, el periodo de extracci6n no se pro- longara por mhs de 15 dias con- secutivos; y que deberan trans- currir cuando menos treinta dias entre dos extracciones en el caso de que se hayan abastecido solici- tudes para gastos mayores de 14.2 metros cibicos (500 pies cdbicos) por segundo. Ademas de los vold- menes garantizados, M6xico de- jara salir de la presa de El Azucar 1259
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