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rmi <br />I J <br />TKDA® <br />Technical Memorandum <br />To: David Swearingen, P.E. <br />Copies To: <br />From: Dan Nesler, P.E. <br />Date: December 11, 2023 <br />Project Reference: <br />TKDA Project No.: <br />Client No.: <br />Attachment A <br />South Tower Improvements <br />Design Summary <br />17993.001 <br />Background <br />In the fall of 2022, the City contracted with Badger State Inspection, LLC (BSI) for inspection of the South Tower. <br />As part of that inspection, BSI recommended several improvements to the tower to extend the life of the existing <br />coating system. The City requested TKDA complete the technical specifications and plan sheets for public bidding <br />of the recommended improvements. <br />The City is also considering security improvements to the South Tower site. These improvements include <br />perimeter fencing and improvements to better secure access points to the site and infrastructure. TKDA was also <br />requested to provide engineering design for the security improvements for inclusion in the bidding documents for <br />the South Tower improvements. <br />Summary of Proposed Improvements <br />The major proposed improvements are listed below and discussed in further: <br />• Structural repairs to bring the tank into compliance with AWWA Standards <br />• Spot repairs to the interior wet coating <br />• Repairs to the interior dry coating <br />• Security improvements: <br />o Security perimeter fencing <br />o Card reader for site access control <br />o Intrusion alarms for overhead doors at booster station and water tower <br />TKDAO 1 444 Cedar Street Suite 1500 1 Saint Paul, MN 55101 <br />An employee -owned company promoting affirmative action and equal opportunity. <br />651.292.4400 • tkda.com <br />