08-22-2022 City Council Packet - Laserfiche WebLink

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STAFF ORIGINATOR: C. C. MEETING DATE TOPIC: VOTE REQUIRED INTRODUCTION CITY COUNCIL AGENDA ITEM 5A Michael Grochala, Community Development Director August 22, 2022 Consider Resolution 22-91, Authorize the Preparation of Plans and Specs, Water Treatment Plant No. 1 315 Staff is requesting Council authorization to prepare plans and specifications for the construction of a Water Treatment Plant No. 1. BACKGROUND In 2019, the Minnesota Department of Health tested the City's manganese levels in each of the City's wells as part of the EPA Unregulated Contaminant Monitoring Rule 4 (UCMR4). The water quality testing data from MDH indicated that five of the City's six wells exceed the maximum recommended manganese level for infants, and three of the wells exceeds the maximum recommend level for adults and children. Since that time the City has completed a Water Treatment Plant feasibility study and a Pilot Study to address treatment options and identify a preferred plant design. The studies recommended the construction of a conventional gravity filtration system using biological filtration with an initial treatment capacity of 6,000 gallons per minute (gpm) is recommended. As discussed at the August 1, 2022 City Council Work Session, WSB and Associates have submitted a proposal for Design, Bidding and Construction for the amount of $1,447,730 (6.89% of preliminary estimated construction cost) as follows: Design: $696,940 Bidding: $19,021 Construction Admin, Const. Observation and Plant Startup: $731,769 Total 1.447.730 The design fee includes engineering, architectural, mechanical and electric design on the plant and treatment system as well as design of new raw water mains to connect wells, 1, 3, 5, 6 to the site. Staff is proposing authorization to complete plans and specifications at this time. The bidding, construction admin and plant startup components came be authorized at a future date, should the City move forward with construction.