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to the electrical and instrumentation plans. Two of the panels are associated with the <br />Chlorination System. The City also requested integration of the Chlorination System into the <br />current design plans. Psomas will provide updated background drawings that show the <br />Chlorinator skid and provide a control description for the Chlorination System. The <br />Chlorination System submittal has a Chlorinator PLC Pallet. It also has a control <br />description. However, control description and Chlorinator PLC Panel 10 list are not <br />consistent with the 10 associated with the Chlorinator Remote 10 Panel. Since most of the <br />I0 for the Chlorinator Remote 10 Panel comes from the Chlorinator skid, we recommend <br />that the chlorine system supplier integrate the Chlorinator Remote 10 Panel into the <br />Chlorinator PLC Panel. <br />The other new panels are called the Well 29 PLC and the SA -2 PLC, In the original design, <br />these panels were to be supplied by the City under separate contract. Psomas will provide <br />background drawings for Well 29 and SA -2. <br />The City has also requested revision to the hardware requirements for the Walnut Pump <br />Station PLC, as well as modifying the control diagrams for the Main Control Panel. <br />Additional Assistance with Review of Shop Drawing Submittals and RFPs — Provide <br />additional assistance in review of contractor shop drawing submittals and responding to <br />contractor RFI's. <br />8, Vault for Chlorination [nieotianQyill — Revise construction plans to add a precast concrete <br />vault for a chlorination injection quill on the existing 24 -inoh well discharge line. Plans will <br />show demolition of existing vault and include plan and section views of new vault and piping <br />modifications. <br />9. Optional Services — Provide engineering sevices for optional tasks as requested by the City. <br />Optional services will be provided only upon prior authorization of the City. <br />We propose to provide engineering services to complete the work as discussed above on an hourly <br />basis with the total fee not to exceed $132,311 as summarized in the attached fee table. <br />If you have any questions, please do not hesitate to contact us. <br />Sincerely, <br />PSO MAS <br />t (r� i <br />Joep L. Boyie;i'R <br />Senior Project H naage;r/Vfce Presidwat <br />25G -6 <br />