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Centerville, MN.50MG Tower No. 1 ROV Evaluation <br />SCOPE OF WORK <br />ROV Evaluation <br />KLM plans to utilize a two-man crew and a remote operated vehicle (ROV) to perform the evaluation. <br />This evaluation method can be performed in one day. <br />KLM will provide inspectors who are properly trained and qualified to perform this type of evaluation. <br />KLM inspectors will place a disinfected ROV and tether into the reservoir for the interior evaluation of <br />the roof, walls, partition walls, floor, piping and valves. Photos will be taken with an underwater <br />camera, which will show the structure conditions and quantity of sediment. The interior of the inlet <br />pipe is excluded from the evaluation, unless otherwise written into this Agreement. <br />Exterior and Interior Evaluation <br />The exterior and interior evaluation is critical to the evaluation to determine whether there are any <br />structuredeficiencies and OSHA compliance. <br />The exterior will be inspected from all areas accessible without rigging, unless otherwise written into <br />this Agreement. Coating conditions of both the interior and exterior piping and reservoir coatings, when <br />applicable, will be examined using dry film thickness (DFT) and standard ASTM tests. <br />Interior and Exterior: <br />Roof structure (size and style).Safety considerations. <br />Vents (size and style).Drains. <br />Roof manways (size and style).Floor condition. <br />Ventilation manways (size and style).Pitting on piping. <br />Overflow weir and pipe (size and style).Ladders, cages, platforms and handrails. <br />Base pad condition, including Flexcelland <br />Support column (size and style). <br />grout. <br />Capacity level and head range. <br />Screens on vents and overflows. <br />Inlet/outlet pipe. <br />Overflow air breaks, splash pads and <br />Mud ring. <br />drainage. <br />Site dimensions. <br />Safety devices. <br />Copyright 2023by KLM Engineering, Inc.Page 2of 8 <br /> <br />