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<br />Chapter V <br /> <br />Chapter VI <br /> <br />Chapter I <br /> <br />CONTENTS (Continued) <br /> <br />Project Lands (Continued) <br /> <br />South La Plata area (continued) <br />General description of class S2 lands (cont.) <br />Subclass S2s lands (continued) <br />Topography. . . . . . . <br />Suitability for irrigation. <br />Subclass S2st.. ...... <br />General description of class 3 land <br />Class 6W land . . . . . <br />Location and extent. <br />Typical soil profile <br />Topography <br />Class 6 land. <br />Rights-of-way <br />Drainage. . . <br />Salinity and sodicity <br />General discussion <br />Specific problems. <br />Quality of water. . . <br />Source of water. . <br />Suitability for irrigation <br />Return flows . . . . . . . <br />Effect on downstream users <br />Determination of irrigable area. <br />Gross area classified . . . <br />Review of classification. . <br />Selection of irrigable land <br />General. . . . . . . . <br />Procedure of selection <br />Acreage summary <br />Supporting data . . . . . <br /> <br />Pa~e <br /> <br />92 <br />96 <br />96 <br />96 <br />96 <br />96 <br />99 <br />99 <br />99 <br />99 <br />99 <br />100 <br />100 <br />100 <br />101 <br />101 <br />101 <br />102 <br />102 <br />105 <br />105 <br />105 <br />107 <br />107 <br />107 <br />108 <br />108 <br /> <br />Draina~e <br /> <br />Introduction . . <br />Purpose and scope of appendix <br />Project setting . . . . . . . <br />Project plan. . . . . . . . . <br />Changes from the feasibility report <br />General land characteristics. <br />Red Mesa area. <br />Dry Side area. . . . . <br />South La Plata area. . <br />North La Plata gravity area. <br />Quality of irrigation water . . <br />Quality of return flows . . . . <br />Summary of drainage conditions. <br /> <br />1 <br />1 <br />1 <br />4 <br />5 <br />5 <br />6 <br />6 <br />6 <br />7 <br />7 <br />8 <br />9 <br /> <br />iv <br />