The water budget for the city of Laramie, Wyoming, was calculated for the years 1966-1970 in order to supplement studies of the city's sewage lagoons and to estimate the effects of municipal use on the Laramie River. Usage during the summer months (April-September) varied directly with temperature and inversely with rainfall, with an average of 235 gpcd. The river furnished approximately 1/3 of the annual supply, and more than 1/2 of the summer supply. On an annual basis, however the city returned more water to the river than it withdrew.

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