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CITY OF SOUTH BEND, INDIANA <br />WWTP SECONDARY TREATMENT IMPROVEMENTS <br />CITY PROJECT NO. 114-053 <br />REQUEST FOR INTERPRETATION <br />Contractor: Thieneman Construction, Inc. <br />Date <br />Transmmitted: <br />Date Response <br />Requested: <br />04/07/2016 <br />04/14/2016 <br />Subject: Aeration Tank #1 Pass #1- Conduit <br />Specification Section and <br />Paragraph: <br />Drawings: S-02, S-03, S-07 <br />INTERPRETATION REQUESTED: <br />RFI NO RFI-070 <br />Date 04/07/2016 <br />Received: <br />Date Response Transmitted: 05/10/2016 <br />During a site walkthrough for the structural demolition work for Aeration Tank #1 Pass #1's walls, an existing 1" conduit was found to <br />be cast into the existing wall. The conduit runs from an existing control box between Pass #1 & Pass #2 across the aeration tank <br />influent channel onto the deck. The conduits route across the influent channel is below the existing concrete walkway out to the <br />aeration tanks. This walkway along with the Pass #1 walls are to be removed per Drawing S-02 & detail 1 on S-03. This conduit will <br />affect the saw cutting demolition of the wall and the walkway if it is not relocated. Additionally, if the conduit is left in place, it will be <br />cast into the new wall and walk way deck that is shown on Detail 4 on sheet S-07. Accompanying pictures detail the location of this <br />conduit. It is not clear what all is powered from the wiring inside the conduit. Additional costs will be present if the conduit is re-routed <br />or if additional labor is required to chip around this conduit during the demolition process. <br />Please advise on how to proceed with this conduit. <br />Requested By: Allen Gaarder <br />ENGINEER'S RESPONSE: <br />Date: 04/07/2016 <br />The existing 1" conduit in question feeds power to gates on the East end of the Aeration Tanks. This feed is to be <br />temporarily powered during construction so that the conduit in concrete can be removed and reconnected when the new <br />concrete is installed. Use 1" flexible sealtight conduit with enough slack to allow construction work to occur. Remove the <br />light pole that is embedded in the concrete. Install temporary lighting on top of Gallery 1 to replace light from pole being <br />removed from walkway. Additional info for permanent installation will be forthcoming. <br />Signature(s): Omar Martin Date: 05/10/2016 <br />