PROJ01756 - Laserfiche WebLink

Home Browse Search

~i ..-- ~~ 143 Union Boulevard Suite 600 Lakewood, Colorado 80228 (303) 985-3636 FAX (303) 985-3800 ....: .' :-. November 28, 1994 Mr. Kent Gumina Colorado Department of Local Affairs 300 Main Street Fort Morgan, Colorado 80701 RE: Pump Station A-2 . Town of Elizabeth Job Number 2747 FIN Dear Kent: This letter is to inform you of the immediate need of funding for the proposed new well at the Town of Elizabeth. As you know from the Town's application for grant, an additional water supply source for the summer of 1995 is needed. This was shown in the Water Master Plan Update, dated October 1994, prepared by Meurer & Associates. The Town's water supply tanks went dry during the summer of 1994, and watering restrictions were imposed. The Town depends upon two wells for its water supply. One well (lower well) is completed mainly in the Lower Dawson aquifer alone with some Upper Dawson aquifer. The other well (upper well) is completed in the Denver aquifer. The lower well is capable of pumping 50 gallons per minute (gpm) for short periods of time. During extended pumping periods, this rate decreases to 35 to 40 gpm or less. This happened during the summer of 1994. The upper well is capable of pumping 150 gpm but during heavy use, this rate declines to 140 gpm or less. If either of these wells goes out of service for any reason (Le. pump replacement) during high demand periods, as happened to the upper wall in July of 1994, the water storage system is depleted. During mid-July 1994,. the wells were not able to keep up with the demand and storage was being depleted to the point where only one to two days supply remained. With the additional homes built since last summer, this extreme water situation is anticipated to occur again in the summer of 1995. Both existing wells are old, having been drilled in 1971. (lower well) and 1978 (upper well) and cannot maintain desired production during peak peTiods. Their current condition is unknown, and it is not known how long they will continue to be useable. Several options were considered to increase the Town's water supply. Drilling an Arapahoe aquifer well was chosen as the best long-term alternative. The Lower Dawson in the area of the Town is a very poor aquifer; Le., it has very few sandstones from which water can be obtained. The Denver aquifer is better than the Lower Dawson but cannot produce much more than 150 gpm, and the Town needs more than this amount. A well or wells tapping the alluvium of Running Creek is being