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Project formulation followed the inventory, forecasting, and analysis of the resource; ,. conditions that were found relevant to the identified problems and opportunities. Measures considered in the formulation of alternative plans included various approaches. Approaches believed to be effective in addressing one or more of the problems or opportunities as well as protecting the environment were further analyzed. Also considered during alternative development were aspects of the Arkansas River Compact. lt was determined that none of the alternatives to be considered would change the amount of water to be diverted from the river or to project area laterals and field ditches. I: ". Alternatives were formulated to reduce nitrates and selenium concentrations in the Arkansas River and ground water to acceptable limits, conserve and more effectively use available water, and reduce irrigation induced erosion to acceptable limits. Development of tillage, planting, and irrigation enduring and management practices specifically for the Watershed area conditions and development of a better understanding of nutrient, trace elements, heavy metal and salinity management hold considerable [)otential for reducing trace elements, heavy metal, nutrients and salinity damages. From the conservation practices in the Field Office Technical Guide, a list of practices was developed. Q..eombining the practices in various ways, alternative solutions with varying costs and impacts were formulated. The formulation process, evaluation and comparison of alternatives, and the rational for plan selection were presented in the following section. lilt<;