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Feasibility Study <br />Water Treatment Plant <br />City of Lino Lakes, MN <br />WSB Project No. 015822-000 Page 30 <br />10. RECOMMENDATIONS <br />A Conventional Gravity Filtration Water Treatment Plant that is designed to provide for biological filtration <br />is recommended to treat the City’s central well field. The initial treatment capacity should be 6,000 <br />gallons per minute (gpm) to supply the City’s maximum day demands until Year 2040. The plant would <br />initially treat manganese and iron in Well Nos. 1, 3, 5, 6, and future Well Nos. 7 and 8 if needed. The <br />plant should also be designed to allow for a future plant expansion (beyond Year 2040) as additional <br />wells are constructed near the central well field. Removing manganese and iron from the City’s raw <br />water will provide major benefits to the City and its customers. In addition to providing drinking water <br />that is treated for manganese, the City’s overall water quality will be greatly improved. Staining of <br />laundry and plumbing fixtures will no longer be an issue for customers, and the City’s water distribution <br />system will need less maintenance with cleaner watermains that require less flushing of settled <br />manganese and iron from the mains. A water treatment pilot study should be conducted as the next step <br />to pilot the proposed water treatment process with the City’s raw water to verify its effectiveness for a full <br />scale water treatment plant. <br />The following implementation schedule is recommended for this project to ensure that treated water is <br />provided to all City customers by Year 2023: <br />Task Date <br />City Council accepts the Water Treatment Plant Feasibility Study July 6, 2020 <br />City Council authorizes Water Treatment Pilot Study July 13, 2020 <br />completes Water Treatment Pilot Study November 13, 2020 <br />City council authorizes design and bidding services for Water <br />Treatment Plant <br />November 23, 2020 <br />completes bidding documents for Water Treatment Plant March 31, 2021 <br />Water Treatment Plant construction bid opening April 29, 2021 <br />City Council awards construction contract for Water Treatment Plant May 10, 2021 <br />Complete construction of Water Treatment Plant October 17, 2022 <br />Water Treatment Plant start-up October 28, 2022