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Public Works Committee 5. 3. <br />Meeting Date: 09/17/2019 <br />By: Bruce Westby, Engineering/Public <br />Works <br />Title: <br />Recommend City Council Approval of Ramsey Town Center 9th Addition Pond Lining Improvements, <br />Improvement Project #19-06 <br />Purpose/Background: <br />Purpose: <br />The purpose of this case is to recommend City Council approval of Ramsey Town Center 9th Addition Pond Lining <br />Improvements, Improvement Project #19-06. <br />Background: <br />Two un-lined stormwater ponds were constructed as part of the Ramsey Town Center (RTC) 9th Addition in the <br />early 2000's. However, the developer walked away from RTC 9 th Addition before it was completed. CentraHomes <br />is currently completing this private residential development. <br />Based on current stormwater management and wellhead protection standards, infiltration of stormwater is <br />prohibited in Wellhead Protection Areas, which encompasses all of RTC 9th Addition, including the two ponds. <br />Staff is therefore proposing to line the two ponds in RTC 9th Addition to prevent infiltration. <br />While CentraHomes was developing their plans, Staff asked what their costs would be to line the ponds in hopes of <br />executing a reimbursement agreement with them to complete the work all at one time. In order for CentraHomes to <br />obtain quotes, they needed plans for the pond lining improvements. City Staff developed plans and provided them <br />to CentraHomes. Unfortunately, their quotes were significantly higher than the engineer's estimate developed in <br />house based on the plans prepared in house. Attached is a copy of the draft plans prepared by City Staff. <br />Staff would like to bid the project this fall/winter in hopes of receiving better bids based on the time of year. Staff <br />will present the draft plans, and other information, in more detail during the meeting. <br />Timeframe: <br />Staff estimates approximately 5 minutes will be required for presentation and discussion of this case. <br />Observations/Alternatives: <br />Observations: <br />Lining the ponds will protect the source aquifer for the City's municipal water supply system. <br />Alternatives: <br />Alternative # 1: Motion to recommend City Council approval of Ramsey Town Center 9th Addition Pond Lining <br />Improvements, Improvement Project #19-06. <br />Alternative #2: Motion of other. <br />Funding Source: <br />The engineer's estimate of project costs for the improvements is $85,000. Project costs are proposed to be split <br />evenly between Stormwater Management and Stormwater Utility Funds. <br />Recommendation: <br />