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<br />5
<br />
<br />.
<br />
<br />In 1984, Mexico's pumping
<br />(eight kilometers) of the
<br />(8,963,000 cubic meters).
<br />years 1976 through 1984:
<br />
<br />from its San Luis Mesa well field within
<br />boundary near San Luis amounted to 7,266
<br />The following quantities were pumped in
<br />
<br />five miles
<br />acre feet
<br />calendar
<br />
<br /> Thousands of
<br /> Calendar Year Acre Feet Cubic Meters
<br />.+:;.. 97,870
<br />0 1976 120,722
<br /><Xl 1977 129,636 159,905
<br />cr~ 1978 98,235 121,172
<br /> 1979 23,562 29,063
<br /> 1980 14,378 17,735
<br /> 1981 120,586 148,742
<br /> 1982 131,738 162,498
<br /> 1983 18,190 22,437
<br /> 1984 7,266 8,963
<br />
<br />In 1983 and 1984 Mexico's pumping of ground water was reduced because flood
<br />control releases from the dams in the U.S. resulted in ample waters into the
<br />river to enable gravity diversions by Mexico to serve its needs.
<br />
<br />The U.S. Bureau of Reclamation (UBSR) has completed 21 of 35 wells on the U.S.
<br />side within five miles of the Arizona-Sonora boundary near San Luis for pro-
<br />tective and regulatory pumping. The remaining 14 wells have been deferred until
<br />water supply needs make construction necessary.
<br />
<br />.
<br />
<br />The United States pumped from domestic, municipal, and irrigation wells located
<br />within five miles (eight kilometers) of the boundary near San Luis the following
<br />quantities:
<br />
<br /> Thousands of
<br />Calendar Year Acre Feet Cubic Meters
<br />1976 22,738 28,047
<br />1977 22,990 28,358
<br />1978 17,900 22,079
<br />1979 25,418 31,353
<br />1980 28,527 35,188
<br />1981 38,463 47,443
<br />1982 40,954 50,516
<br />1983 16,707 20,608
<br />1984 ,,- ,,-
<br /> "
<br />
<br />The Commission is continuing, under Minute No. 242, its program for exchange of
<br />groundwater data for the major groundwater basins lying partly in the United
<br />States and partly in Mexico including the Colorado River delta area. The
<br />objective of the exchange is to make available hydrologic, geologic and water
<br />quality data in either country, to both Sections of the Commission to enable
<br />definition of existing or potential problems.
<br />
<br />.
<br />
<br />"Data to be supplied later.
<br />
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