OFFICIAL USE ONLY -2- farmers would be able to work out their financing and other problems and proceed with irrigation. The Ambassador recalled the Joint Communique of the two Presidents issued on June 30, 1962. He said that Mexico understood the Communique to mean that the problem would be taken care of temporarily until October 1963. He said that Mexico thought the salinity of the water had to be down to at least 1600 p.p.m. to be used. The Mexican Commissioner added that Mexico planned with this salinity to divert 20% more water than its treaty allotment for leaching purposes. The Secretary said that people in the United States were most concerned about increased acreage in the Mexicali Valley which prompted requests from Mexic...