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<br />0') <br />.-4 <br />C'r') <br />C <br /> <br />CHAPTER VI <br /> <br />PLAN FORMULATION <br /> <br />Scope of the Study <br /> <br />The planning process for the Grand Valley Unit, Stage Two included <br /> <br />formulating and evaluating alternatives aimed at reducing salt loading <br /> <br />and selecting a rec01lllllended plan for the remainder of the unit. The <br /> <br />conduct of the study, methods employed, and schedule of activities were <br /> <br />outlined in a plan of study prepared in October 1981. <br /> <br />Criteria and Assumptions <br /> <br />Stage Two planning studies, which began in November 1981, were <br /> <br />conducted within the framework of applicable Federal legislation and <br /> <br />regulat ions as well as departmental and agency guidelines, execut ive <br /> <br />orders, and administrative policies as they relate to the Grand Valley <br /> <br />Unit. <br /> <br />Early in Stage Two planning, problems, constraints, concerns, and <br /> <br />opportunities were identified; these formed the basis for elements to be <br /> <br />considered in plan formulation. At the outset of planning, the Stage Two <br /> <br />study area was defined as the entire irrigated portion of the Grand <br /> <br />Valley outside of Stage One and excluding the Redlands area and the <br /> <br />. <br /> <br />Orchard Mesa Power Canal and laterals.!/ <br /> <br />1/ The Orchard Mesa Power Canal and laterals are located iInme- <br />diately adjacent to the Colorado River. Approximately 40 percent of the <br />power canal and most of the laterals are lined. Also, a major portion of <br />the power canal and laterals is lined. The Redlands system is not <br />underlain by the Mancos Formation and is almost entirely lined. <br /> <br />60 <br />