Agenda - Parks and Recreation Commission - 04/10/2014

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providing for a high rate sustainable yield from the collection area. Water is then pumped via a raw water transmission main to a surface water treatment facility. An approximate location for the collection area and raw water transmission main are shown on Figure ES -1. 3. Alternative Comparisons Table ES.5 provides a summary of the cost of the two supply and treatment alternatives. TABLE ES.5 CITY OF RAMSEY ALTERNATIVE COMPARISON WATER SUPPLY AND TREATMENT Alternative No. 1 Groundwater Supply Alternative No. 2 Surface Water Supply 1. Construct Well #6 $820,000 $820,000 2. Construct Well #7 $1,080,000 $1,080,000 3. Construct Well #8 $790,000 $790,000 4. Construct Groundwater Treatment Plant $14,000,000 NA 5. Construct Surface Water Treatment Plant NA $18,500,000 6. Construct Wells 9 — 15 $5,600,000 NA Total Construction Cost $22,290,000 $21,190,000 F. WATER STORAGE AND DISTRIBUTION SYSTEM 1. Water Storage Facility Improvements Based on the evaluation presented in Section 3.0, 2.9 million gallons (MG) of additional water storage capacity will be needed over the next 10 years. The water storage needs for the City of Ramsey can be most economically constructed with a combination of ground storage reservoir and an elevated storage tower. Construction of a 1.5 MG elevated storage tower, located in the vicinity of Elmcrest Park, will provide fire protection and improved static water pressure to the northeast quadrant of the City. Construction of a 1.5 MG ground storage reservoir at the proposed water treatment plant site (adjacent to the fire station along Armstrong Boulevard) will provide a clearwell for pumping facilities at the treatment plant. This reservoir, in conjunction with high service pumping facilities at the proposed water treatment plant, will provide improved fire protection and static water pressure to City of Ramsey, Minnesota — M21.34343 Page ES -6 Water System Study Prepared by Bolton & Menk, Inc.