Laserfiche WebLink
BACKGROUND <br /> The subject project was authorized in the 2009/2010 Capital Improvement Program. <br /> The project consists of demolition of the existing pumps and piping system in the pump <br /> station; removing and salvaging the hoist system inside the building; installing three <br /> openings on the roof with associated truss work and roof ventilations; installing pump <br /> control valves, a surge anticipator, interior piping system, gate valves, instrumentations, <br /> and three pumps and motors; grouting the cavity between the slab and the foundation <br /> with concrete; installing yard piping, flow meter and meter vault and tying the yard <br /> piping with the existing 10" mainline; coating and painting the pipes. It also involves <br /> supplying two pumps and the start up and testing of all of the new equipment. <br /> Two of the three existing pumps in the station have failed this past summer and a <br /> temporary pump system had to be installed to meet the demand of the station. The <br /> existing vertical split -case pump design is very inefficient and does not meet the <br /> minimum pumping capacity requirements of the station. In a recent pump efficiency <br /> audit, the three existing pumps at the Longview Station had a very low rating compared <br /> to the average pump. Depending on rebate funding levels, once the pumps have been <br /> replaced with high- efficiency models, the project may be eligible for an energy rebate. <br /> One new vertical turbine pump will pump more water than all three of the old pumps <br /> combined while using less total power in the process. <br /> Bids <br /> Sealed bids for this project were opened on October 25, 2010. There were a total of six <br /> (6) bids received with bid amounts ranging between $205,533 and $272,000 (see <br /> Attachment 2). Two of the bids needed adjustments due to arithmetic errors. However, <br /> the ranking remains the same after these adjustments. The engineer's estimate for this <br /> project was $205,000. <br /> Staff reviewed the bid submitted by the apparent low bidder, TNT Industrial Contractors, <br /> Inc., and found it to be in order. Past work performed by TNT Industrial Contractors, <br /> Inc. was also verified to be satisfactory. Staff recommends award of the construction <br /> contract to the lowest responsible bidder, TNT Industrial Contractors, Inc. <br /> Budget <br /> Project funding and estimated expenditures are presented in Attachment 3 to this <br /> report. <br /> Staff is recommending a 10% project contingency ($20,550) in order to accommodate <br /> necessary adjustments due to unforeseen underground utilities that may conflict with <br /> the water main installation and water main tie -ins. <br /> Page 2 of 3 <br />