From The Greeley Tribune (Meagan Birely):
Evans residents may water between April 15-Oct. 15, but not during the hours of noon-5 p.m. Even-numbered addresses can water Sundays, Tuesdays and Thursdays. Odd-numbered addresses can water Mondays, Wednesdays and Saturdays. Earl Smith, the director of public works for the city, said the city imposes these restrictions to avoid wasting water and so the city does not have to pay Greeley a fee if the city goes over its water cap.
More conservation coverage here.