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<br />I <br />II <br />II <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 />PART IV. <br /> <br />PART V. <br /> <br />TABLE OF CONTENTS (Continued) <br /> <br />PROBLElo\S OF THE AREA. . <br /> <br />. . . . . . I . . . . . <br /> <br />Page <br /> <br />36 <br />36 <br />36 <br />3r <br />37 <br />38 <br />39 <br />39 <br />40 <br />42 <br />42 <br />43 <br />43 <br />43 <br />44 <br />45 <br />46 <br />47 <br />47 <br />51 <br />54 <br />54 <br />54 <br />58 <br />60 <br />60 <br />60 <br />66 <br />73 <br />79 <br /> <br />A. <br />B. <br />C. <br /> <br />Maintenance of Drainage <br />Conservation of Water . <br />Water Supply to Mexi,co. <br /> <br />on Irrigation Projects. <br /> <br />. <br /> <br />1. Quantity. . . . . . <br />2. Quality. . . . . . <br /> <br />. <br /> <br />PRESENT INVESTIGATIONS. <br /> <br />A. <br />B. <br /> <br />General Considerations. <br />Ground Water Geology - Wellton-Mohawk Area. <br /> <br />L Definition of the Wellton-Mohavk Aquifer. <br /> <br />a. Gravel Zone . <br />b. Sandy Zone. , <br />c. Wellton Mesa. <br /> <br />2.' Hydraulic Characteristics <br />3. Ground. \{ater in Storage . <br />4. Water Table Trends and Depths <br />5. Quali ty of Ground Water .. . <br /> <br />C. <br /> <br />Hydrology of the Wellton-Mohavk Area. <br /> <br />1. Water Supply and Requirements . . <br />:> ,-Er"Jp~TPil Improvement--4-n Quali-ty-of' Glound lh..L". . <br /> <br />D. <br /> <br />Soils Investigations. <br /> <br />1. United States . . <br /> <br />a. Previous Soil Surveys <br />b. Present Soil Studies. <br /> <br />2. Mexico. . <br /> <br />a. Field Investigations. <br />b. Land Categories . . . <br />c. Laboratory Characterization of the Soils. <br />d. Relationship between Water Quality and. Soils. <br /> <br />E. <br /> <br />Pipe Drainage Investigations. . . . . . , . , . . . . <br /> <br />xi <br />