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<br />The trend for drainage of agricultural lands is assumed to continue. <br />Drainage of irrigated land serves several purposes: (1) lowers the water <br />table, (2) intercepts water going to deep percolation, (3) facilitates <br />leaching, and (4) increases crop yields. Minimal channel stabilization is <br />anticipated for this alternative, however, the ongoing program of brush <br />clearing is expected to continue. Maintenance of the existing irrigation <br />water distribution system is assumed. <br /> <br />This alternative would not have a measurable effect on fish and wildlife <br />habitat. Muddy River is considered a fishery only due to documented occur- <br />rence of the Moapa dace which has been chartered by the State of Nevada and <br />the USFWS as an endangered species. The habitat of the Moapa dace would not <br />be affected by less saline water in the last few miles of Muddy River because <br />their habitat is limited to the upstream Warm Springs area (Reference: <br />USFW, Threatened Wildlife of the U.S. Resource Publication No. 114, p. 33). <br />Other species of fish would have a slightly enhanced habitat. <br /> <br />Clark County Conservation District will continue assistance with manage- <br />ment of wildlife on wetland and upland areas. The quantity of recreation <br />land and water, camping supply and demand, and picnicking supply and demand <br />will remain at present levels. <br /> <br />Water quantity in the river would be similar to the present quantity. <br />Effective reduction in salt loading would not be attained through projected <br />urbanization and land use change. <br /> <br />Total new construction cost of the ongoing program (with minor salinity <br />benefit) is estimated to be $600,000. For the comparable installation period <br />of a proposed salinity control program (see Table 2, page ix) technical <br />assistance in this period is projected to be $175,000. Much of this assistance <br />cost reflects assistance other than that provided for new construction, such <br />as for maintenance, replacement of existing irrigation systems, and for <br />onfarm wildlife habitat management. <br /> <br />riC"\"j'8 <br />" ..... '1 <br /> <br />38 <br />