Agenda - Public Works Committee - 11/21/2017

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5.Loop #6 was added to the map. This is proposed work to be completed next summer. We have included a table depicting the costs of the improvements in the areas described at the back of this report. 2.Water Supply Wells and Storage Development projections from 2012 indicated a new water supply capacity would be required by 2019. With the updated development data, new water supply is now projected to be required by 2022. Construction of new wells in 2023 and 2028 will provide adequate capacity to the year 2040 based upon projected growth rates. In order to determine a viable location for a new well, and potential for additional water supply options utilizing groundwater sources, a well location study should be undertaken beginning in 2017. The following capital costs, presented in 2017 dollars, should be expected for the water system: A new water supply well and pumphouse in 2023 at $1,500,000, · A new water supply well and pumphouse in 2028 at $1,500,000, and · Water tower rehabilitation in 2030 at $2,000,000. · Additionally, $100,000 per year for the years 2021 through 2028 should be allocated for well service and pump maintenance. Water tower 3 is anticipated to need rehabilitation in approximately 2030. Approximately $2,000,000 will be required for this work. 3.Water Treatment Facility In the 2012 report, a water treatment facility was identified as a means of water supply. This was intended to be a surface water treatment facility that drew raw water from the Mississippi River. Based on current discussions with regulatory agencies, there is the potential to provide more water to the system through the addition of wells. In the 2017 report, the treatment facility was removed. A new treatment facility was added to the 2017 report to provide greater water quality than exists from the untreated well water current used in the City. The construction of the facility will depend on several factors, including: needs of business and industrial users, and acceptability of the water by residents of the community. The water treatment facility is depicted as being constructed in 2027 and 2028 at a cost of $24,000,000. The actual timing of the construction of the facility is undetermined at this time. C. TRUNK WATER MAIN COSTS Attached are updated cost estimates related to the water distribution system improvements, totaling $6,574,097. These costs include 25% indirect costs such as administration, engineering, legal and financing. Additionally, we have included a 20% contingency for unforeseen improvements which may be required during the study period, for a total cost of $7,888,916 in 2017 dollars. City of Ramsey, Minnesota R16.110056 Page 2 Comprehensive Water Plan Update Prepared by Bolton & Menk, Inc.