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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 />DLJ3172 <br />The deliveries to Mexico on the land boundary at San Luis and in the limitrophe section below <br />Morelos Dam in 1999 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 <br />by delivering to Mexico a volume of water equal to the difference. This volume was delivered in <br />the bed of the river above Morelos Dam, as stipulated in Point I of Minute No. 242. <br /> <br />The average flow weighted annual salinities ofthe waters delivered to Mexico on the land boundary <br />at San Luis under Minute No. 242, since it became effective on June 24, 1974 are tabulated as <br />follows: <br /> <br /> AVERAGE ANNUAL SALINITY (u.s. COUNT) <br /> AS TOTAL DISSOLVED SOLIDS <br />YEAR (PPM) <br />1974(Jun 25-Dec31) 1,515 <br />1975 1,500 <br />1976 1,480 <br />1977 1,510 <br /> . <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 />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 />1997 1,341 <br />1998 1,214 <br />1999 1,242 <br /> <br />The above data show that the salinity in 1999 was lower than that ofthe water customarily delivered <br />on the land boundary, which averaged about 1,540 ppm for the 10-year period 1963-1972. <br /> <br />5 <br /> <br />- <br />