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ARDEN HILLS SPECIAL CITY COUNCIL WORK SESSION—OCTOBER 27, 2014 6 improvements. Prior to moving into the next phase of this process and before preparing cost estimates, the consultant and Ramsey County would like to share with the City Council where they are at in design and collect feedback from the City Council. Tom Lincoln, Kimley Horn, reviewed the preliminary water and sanitary sewer design for the TCAAP site. He discussed the design development scenario noting that this included 1,700 residential dwelling units. He explained that the current average daily demand is 1.25 million gallons of water. The model assumes, 1.5 million gallons of water per day would be needed by the non-TCAAP part of Arden Hills. Mr. Lincoln discussed the location of the trunk water lines through the Spine Road along with the pipe sizing in the commercial and industrial areas to meet fire flows. The additional water demand is estimated to be 0.75 million gallons per day. He stated that a booster station would be required at I-694 to keep the City properly pressurized. This station would assist with serving the entire north side of the City. He stated that it looks like a 1.5 million gallon water tower will be required to service TCAAP. The sanitary sewer trunk lines were then discussed. It was noted that the City had capacity to handle the proposed system. He reported that he has held discussions with Met Council regarding the metering of the sanitary sewer system. It was determined that this would be completed through a lift station on TCAAP. Mayor Grant questioned when the cost estimates for the water and sanitary sewer systems would be completed. Mr. Lincoln anticipated that this information would be available in January. 2. COUNCIL COMMENTS AND STAFF UPDATES None. ADJOURN Mayor Grant adjourned the special City Council work session at 6:57 p.m. Amy Dietl David Grant City Clerk Mayor