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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 />O 0 ') C) ;' t. <br />'-'.wut <br /> <br />The growth in number of wells is another clue to the differ'ence <br /> <br />between counties to the north and to the south, those in the three <br /> <br />northernmost counties having nearly five times the number as in <br /> <br />Terry. Lynn and Garza Counties. <br /> <br />The local expression for ground water in areas of plentiful <br /> <br />supply and large-flowing wells is "good" water. and the expression <br /> <br />for areas of lesser supply is "weak" water, It is said that there <br />are many more two-inch and four-inch wells in the southern tier <br /> <br />of counties than originally, and that there are very few six and <br /> <br />eight-inch wells any more, As the productivity of a well declines, <br /> <br />it is reduced in size to save energy and often two or more "weak- <br /> <br />water" wells pump to a centrally located retention tank on the fann <br />in order that sufficient water may then be pumped to keep a <br /> <br />central-pivot sprinkler system in operation. <br /> <br />Differences among counties are further revealed by the water <br />volumes in storage by saturated thickness interval, as estimated <br /> <br />* <br />for 1974, Table IV-4 on the followin9 page shows even more clearly <br />I <br />that the northern tier of counties has been favored Iwith a more <br /> <br />plentiful water resource. Sixty-one percent of the nine-county <br /> <br />1974 volume of 51,427,000 acre feet was in the northern group, <br /> <br />*Texas Water Development Board, and Department of Water Resources. <br />Analytical Study of the~.lJala Aquifer in [county name] Texas (various <br />dates) <br /> <br />IV-29 <br /> <br />Arthur D Little.lnc <br />