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422 West Sixth Street, Los Angeles 14, Calif., November 23, 1949 D aa ^I *5 o° ttro Poo U.Tt(0 REFERENCE: ATTENTION: M r ..______ _ M r . University of Arizona, Tuoeon, Arizona Attn: Dr. Paul S. Burgess, Dean, College of Agriculture, and Director, Agricultural Experiment Station Cent lessen: We operate a public utility serving water to the City of Las Vegas, Nevada. During the summer months and particularly during periods of extreme hot weather when the temperature ranges upward to 110 and ever with vary low humidity, the practice among a large number of the popula­tion is to sprinkle lawns, shrubbery and other vegetation continuously throughout the day. This practice la rapidly depleting the underground reservoir, and unless the citizens can be Induced to oonserve 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 oapita use during the period of high temperatures approximates TOG gallons per day. We believe a more Judicious use of water will re­duce this consumption without detriment to vegetation. We propose to conduct an educational program to Impress upon consumers the necessity of conserving water. Local nurserymen state that during extreme high temperatures daytime watering is detrimental and that t m greater benefit may be derived by watering dtuftngfthe ev©n||ig and early morn­ing. For use in conducting such a campaign, will appreciate receiving any authoritative information concerning this subject. Xn event you do not have such information, your sug­gestion as to where it may be obtained will be appreciated. Tours,very truly,