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OF'�Fc <br /> i= 9C <br /> v �o <br /> � <br /> I�i♦i%� <br /> '/[LINO�S <br /> October 9, 2000 <br /> WATER MANAGEMENT MEMORANDUM <br /> NO. 2000 - 09 <br /> MEMORANDUM TO: Honorable Mayor and City Council <br /> FROM: Steve Garman, City Manager �� <br /> Stephen P. Swanson, P.E., Acting Director o ��Water Manageme� � <br /> John A. Smith, Water Production Manager,���''u'�-� <br /> U <br /> SUBJECT: William Street Reservoir Inspection/Cleaning <br /> City Project 2000-42 <br /> The William Street Reservoir and Pump Station (WSPS) is a vital component of the City's <br /> water system. Located behind Fire Station #2, it consists of a five-million gallon concrete <br /> reservoir and three pumps located inside the pump station. During times of low water demand, ' <br /> treated water flows into the reservoir. In times of high water demand, water is pumped out of the <br /> reservoir and into the water distribution system. The control of the reservoir filling and pumping <br /> is done remotely by the South Water Treatment Plant operator. , <br /> Once control of the North Water Treatment Plant is transferred to ADM, the WSPS will , <br /> become extremely important to the City's water system. It will be the only back-up source of ' <br /> treated water that can be pumped into the water distribution system. The City's two elevated <br /> water storage tanks, one having a 1-million gallon capacity and the other a 1.5-million gallon <br /> capacity, work on gravity and are not pumped. <br /> The reservoir and pump station were constructed in the early 1970's. The tank is two-thirds <br /> buried in the ground, and an inspection of the tank for structural integrity must be done on a � <br /> periodic basis. This inspection can only be done from the inside of the tank. The tank was last ', <br /> inspected in the mid 1980's and was drained and cleaned for that inspection. During that time, <br /> the tank and station were, naturally, out of service, and the tank had to be disinfected and pass <br /> bacteriological tests before it could be placed back in service. ' <br />