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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I, <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />The deliveries to Mexico on the land boundary at San Luis and in the limitrophe section below <br />Morelos Dam in 1996 were less than the annual volume of172,689,000 cubic meters (140,000 acre- <br />feet) referred to in Minute No. 242. The United States made up the difference in these deliveries by <br />delivering to Mexico a volume of water equal to the difference. This volume was delivered in the <br />bed of the river above Morelos Dam, as stipulated in Point 1 of Minute No. 242. <br /> <br />The average annual salinities of the waters delivered to Mexico on the land boundary at San Luis <br />under Minute No. 242, since it became effective on June 24, 1974 are tabulated as follows: <br /> <br /> AVERAGE ANNUAL SALINITY (U.S, COUNT) <br /> AS TOTAL DISSOLVED SOLIDS <br /> YEAR (PPMl <br />1974 (Jun 25 - Dee 31) 1,515 <br /> 1975 1,500 <br /> 1976 1,480 <br /> 1977 1,510 <br /> 1978 1,470 <br />, - 1979. 1,538 , - <br /> 1980 1,582 <br /> 1981 1,572 <br /> 1982 1,470 <br /> 1983 1,434 <br /> 1984 1,487 <br /> 1985 1,513 <br /> 1986 1,496 <br /> 1987 1,431 <br /> 1988 1,488 <br /> -. . - . - - - - - - <br /> 1989 1,300 <br /> 1990 1,333 <br /> 1991 1,223 <br /> 1992 1,312 <br /> 1993 1,306 <br /> 1994 1,299 <br /> 1995 1,313 <br /> 1996 1,358 <br /> <br />The above data show that the salinity in 1996 was lower than that of the water customarily delivered <br />on the land boundary, which averaged about 1,540 ppm for the lO-year period 1963-1972. <br /> <br />Progress on U.S. Measures Provided for in Public Law 93-320 <br /> <br />Beginning in late 1995, Mexico raised objections to peaks in salinity at the NIB and to the salinity <br /> <br />5 <br />