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4 2 2 W e s t S i x t h Street* Los Angeles 14* Calif.* October 51* 1949 University of Arizona* Department of Agriculture, Tucson* Arizona Gentlemen; We operate a public utility serving water to the City of Lae Vegas* Nevada. During the summer months and particularly during periods of extreme hot weather when the temperature ranges upward to 110 and over with very low humid lt|-, the practice among a large number of the popula­tion is to sprinkle, lawns* shrubbery and other vegetation continuously throughout the day. This practice is rapidly depleting the underground reservoir* end unless the citizens can be induced to conserve water* will necessitate the construction of necessary facilities at considerable expense to bring water into the Valley from Lake Mead. At the present time* the per capita use during the period of high temperatures approximates 700 gallons per day. We believe a more judicious use of water will re­duce this consumption without detriment to vegetation. '? :?Z 'fi* </" 'VI ' ^ - | /> ' We propose to conduct an educational program to impress upon consumers the necessity of conserving water. i L^oal nurserymen state that during extreme high temperatures daytime watering is detrimental and that far greater benefit may be derived by watering during the evening and early m o m - lug. For use in conducting ouch a campaign* will appreciate receiving any authoritative information concerning this subject. In ©vent you do not have such information* your sug­gestion as to where it may be obtained will be appreciated. Yours very truly, i d M r l i i . Johnson I - ? ttOl; i ' . y . •. 1 .