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4 . Wellton-Moha~k BYDass Drain Pursuant to Point 4 of Minute No. 242, providing for an extension of the concrete-lined Wellton-lillhawk Byoass Drain in 'lexico at the expense"of the United States, and pursuant to !Iinute No. 248, adopted by the Commission on June 10, 1975, Mexico completed the 35 miles of drain in its territory in March 1977. Pursuant to Minute No. 248, the Bureau of Reclamation completed the part of the bypass drain in the Hnited States in June 1977. This extension was placed in ooeration on June 23, 1977, providing a drain of a caDacity of 353 cubic feet (10 cubic meters) per second, fro~ the previous terminus of the Main Outlet Drain Extension at Morelos Dam to the Santa Clara Slough, on the Gulf of California, a distance of approximately 50 ~iles (81 kilometers). Groundwaters Point 5 of Minute No. 242 provides that: . "Pending the conclusion by the Governments of the United States and Mexico of a comprehensive agreement on ~roundwater in border areas, each country shall limit pumping of groundwater in its territory within five miles (eight kilo~eters) of the Arizona-Sonora Boundary near San Luis to 160,000 acre-feet (197,358,000 cubic meters) annually." Mexico pumped fro~ its ~an Luis Ilesa well field within five ~iles (eight kilo~eters) of the boundary near San Luis the followin~ quantity in calendar years 1976, 1977, and 1978. Calendar Year Acre-feet Cubic Meters 1976 1977 1978 97,870 12Q,636 98,235 120,722,000 159,905,000 121,172,000 The United States pumped from domestic, municipal, and irrigation wells located within fiye miles (eight kilometers) of the boundary near San Luis the following auantity: Calendar Year Acre-feet Cubic Meters 1976 1977 1978 22,738 22,990 * 28,047,000 28,358,000 * . The Bureau of Reclamation has nlanned a U.S. well field of 21 wells for protective and regulatory pumolng within five miles of the Arizona-Sonora Boundary near San Luis. Six wells have been completed and equip~ed; an additional eight wells have been drilled and contracts awarded for seven more wells. Should additional wells be needed to maintain flows at the Southerly International Boundary, the Bureau has developed contingency plans for an additional 14 wells. (*Data to be sUnplied later)