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<br />Question f: <br /> <br />Question h: <br /> <br />) <br /> <br />) <br /> <br />areas, and provide <br />to municipalities <br />area. <br /> <br />additional water supplies <br />adjoining these target <br /> <br />Research at Colorado state University has <br />indicated that minute particles of silver iodide <br />have the ability to convert cloud water droplets <br />below approximately -5"C (supercooled) into ice <br />crystals (Garvey, 1974). Other research in <br />numerous mountainous locations in wintertime has <br />indicated that supercooled water droplets occur in <br />storms that affect such areas (Super and Boe, <br />1988) (Solak, et al., 1988). specifically, <br />research conducted over the Grand Mesa (Thompson <br />and super, 1987) has indicated that periods with <br />supercooled clouds occur during winter storms. <br />Ludlum (1955) stated the hypothesis that winter <br />mountainous storms that contained supercooled <br />water could be "seeded" with certain materials to <br />produce additional ice crystals that could grow <br />into additional snowflakes which would augment the <br />natural storm precipitation. <br /> <br />The Climax research program, conducted in two <br />phases in the central Colorado Rockies (Mielke, et <br />al., 1981), indicated increases in natural winter <br />snowfall of approximately 25 percent in warm <br />topped orographic clouds. The Climax research <br />program utilized ground based silver iodide <br />generators quite similar to those proposed to be <br />used on this program. <br /> <br />The type of proposed-program has been the subject <br />of extensive research conducted by the Denver <br />offices of the Bureau of Reclamation under their <br />program "8kywater". The Bureau has studied the <br />numerous potential impacts of winter weather <br />modification programs. A generic environmental <br />impact statement has been prepared Higginson, <br />1977) . This statement declared negative <br />environmental impacts from this program. <br /> <br />For example, the question of the toxicity of <br />silver iodide used as a cloud seeing agent has <br />been studied to the extent that a complete book <br />has been written on the subject (Klein, 1978). <br />Quoting from the summary of this book..." <br /> <br />"the major environmental concerns about <br />nucleating agents (effects on plant growth, <br />game animals, and fish etc.) appRar rn <br />represent negligible environmental hazards." <br />