Agenda - Council - 06/26/2012 - Laserfiche WebLink

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reduction in the size of the pumps required to supply a community because peak demands are diminished by the reserves provided by the storage. The other reasons for providing storage include: • Fire protection • Emergency requirements (pump failures, power failures, etc.) ■ To equalize pressure in the distribution system 2. Evaluation of Water Storage Capacity Storage adequacy can be assessed using the Average Day Criteria or the Maximum Day, Fire Protection and Emergency Storage Criteria. These two sets of criteria are discussed in the following paragraphs. Average Day Criteria Generally, the minimum recommended standard, without fire protection, is equal to the average day demand (Recommended Standards for Water Works, 2007 and adopted by the Minnesota Department of Health). By this standard, no storage deficit is projected for the design period. Maximum Day, Fire Protection and Emergency Storage Criteria Another approach is to consider the individual storage components needed for equalization, fire demand, and emergency reserve versus the available water supply production facilities. The water production and storage must be considered together, since an increase in production may decrease the amount of water storage required. Utilizing this criteria, no storage deficit is projected for the design period. 3. Water Storage Infrastructure Needs Based on the evaluation of water storage capacity, no additional storage is required to meet system operation needs. Water treatment options will include clearwell/reservoir capacity to allow for optimization of high service pumping facilities. Maintenance of the existing storage towers will be required over the study period, and cost for these activities will be included in the water utility fund evaluation. City of Ramsey, Minnesota — R13.104504 Page 3-6 Comprehensive Water System Study Prepared by Bolton & Menk, Inc.