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STAFF REPORT <br />DATE: February 21, 2023 <br /> CONSENT <br /> <br />AGENDA ITEM: Approve Change Order No. 3 for the Parkview-Cardinal Street and Utility <br />Improvements <br />SUBMITTED BY: Mark Scholle, Project Engineer <br /> <br />REVIEWED BY: Kristina Handt, City Administrator <br /> Marty Powers, Public Works Director <br /> Jack Griffin, City Engineer <br /> <br /> <br />ISSUE BEFORE COUNCIL: Should the City Council approve Change Order No. 3 for the Parkview- <br />Cardinal Street and Utility Improvements under the condition the MPCA grant amendment request is <br />approved? <br /> <br />BACKGROUND: The City of Lake Elmo received grant funding from the Minnesota Pollution Control <br />Agency (MPCA) under the 2018 3M Settlement Agreement as an expedited project to extend municipal <br />water and connect each of the 62 properties. The grant is in the amount of $5,200,000 and includes the <br />public and private water system improvements, and the street and drainage improvements. <br /> <br />T.A. Schifsky & Sons, Inc. was awarded a construction contract on April 6, 2022, to complete the Parkview- <br />Cardinal Street and Utility Improvements. The current construction contract completion dates are <br />Substantial Completion date of October 14, 2022, and Final Completion date of November 24, 2022. <br /> <br />PROPOSAL DETAILS/ANALYSIS: During construction of the public improvements the city learned <br />of privately owned sewer services existing in the right of way of Ivy Avenue from 15th Street to 16th Street. <br />The services are not locatable and there are no records of their location. The current contract requires the <br />watermain to be installed by directional drilling, but not knowing where the sanitary services are located <br />creates potential risk of hitting the private lines without knowing it. <br /> <br />Staff has worked with the contractor to evaluate options and approaches to complete construction and <br />minimize the risk of hitting the sewer private lines. The recommended approach is to revise the watermain <br />installation method from a trenchless drilling method to an open cut installation method and fully <br />reconstruct the street. <br /> <br />Change Order No. 3 amends the Contract to revise work as follows: <br /> <br />• Revise watermain installation method from directional drilling to open cut trench along Ivy Avenue <br />from 15th Street to 16th Street due to unknown locations of several privately owned sanitary sewer <br />service forcemains in the area. This includes a change from a street reclamation improvement to <br />full pavement section street reconstruction along the street segments that are disturbed by the open <br />cut trench watermain installation. <br />• Extend the Substantial Completion date for the Cardinal Ridge subdivision improvements from <br />October 14, 2022 to July 31, 2023 and the Final Completion date from November 24, 2022 to <br />August 15, 2023. The contract period for the remaining projects areas remains unchanged.