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R~ST FOR CITY COUNCIL AGEN~ITEM <br />Agenda Date Requested: 1~pri1 13, 1992 <br />Requested By: S. Gillett Department: Public Works <br />XXXX Report Resolution Ordinance <br />Exhibits: Proposal for Professional Engineering Services <br />SUMMARY & RECOMMENDATION <br />On February 5, 1992, severe hydrogen sulfide corrosion at Lift Station 30 <br />was discovered. The main contributing factor appeared to be the force main <br />entering the wet well from the Lomax area at the top of the structure. <br />Manning Engineering was contacted to evaluate the situation and recommend <br />corrective action. <br />The evaluation was completed in March 1992 for a cost of $2,150. The <br />Engineer recommended the force main be diverted to the Fairmont Parkway <br />Trunk Sewer as soon as possible. The diversion will reduce corrosion and <br />pumping costs, as well as relieve surcharging in the Fairmont Park gravity <br />sewer system. Repairs to the wet well can be deferred until next year, to <br />allow budgeting. Additionally, diversion of the Creekmont and Glen Meadows <br />force mains from the gravity system to the Lomax force main was also <br />recommended. These diversions will be accomplished with city crews. <br />Manning Engineering has submitted a proposal to perform the necessary <br />design to bid this project. Total engineering cost is as follows. <br />Design Phase $4,500 <br />Bidding Phase 500 <br />Construction Phase 200 <br />Total Engineering $5,200 <br />Estimated Additional Services - Not to exceed on hourly basis <br />Design Review/Approval $ 800 <br />Construction Inspection 900 <br />Total Additional Services $1,700 <br />Total Authorization $6.900 <br />No funds are available in the Utility Operating Fund for this project. It <br />is recommended that funds be appropriated from the Utility Contingency Fund <br />for design and construction. <br />Action Required by Council: Authorize the City Manager to enter a contract <br />with Manning Engineering Corporation for the design of Lift Station 30 <br />Force Main Diversion for a total cost of $6,900, and appropriate the <br />necessary fund from the Utility Contingency Fund. <br />Availability of Funds: <br />General Fund Water/Wastewater <br />Capital Improvement General Revenue Sharing <br />XXXX Other (Utility Contingency Fund) <br />Account Number: Funds Available: YES NO <br />A rov r C~t Cou it e d <br />~~ <br />Ro r T. errera D <br />C~ y Manager <br />