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HomeMy WebLinkAbout09/04/2012 George Street North Sanitary Relief Station Project (CIP)Mount Prospect Public Works Department ?/ INTEROFFICE MEMORANDUM t TO: VILLAGE MANAGER MICHAEL E. JANONIS FROM: WATER & SEWER SUPERINTENDENT DATE: AUGUST 29, 2012 SUBJECT: BID RESULTS FOR GEORGE STREET NORTH SANITARY RELIEF STATION PROJECT (CIP) - ($156,544) Background In the current budget, funds have been requested to rehabilitate the George Street North Sanitary Relief Pumping Station. This pumping facility is used to provide relief to the Village -owned sanitary sewer system in the event that the Metropolitan Water Reclamation District of Greater Chicago (MWRDGC) interceptor sewer becomes surcharged. The MWRDGC interceptor sewer system accepts wastewater from Mount Prospect sewers and transports it to treatment plants in Skokie or Des Plaines. During wet weather, interceptor sewers can become full thereby limiting the rate at which they can accept gravity flow from local Mount Prospect sewers. To mitigate the resultant surcharge conditions in our local sewers, pumping stations were installed in some neighborhoods. These stations help prevent the MWRDGC interceptors from backing -up into local sewers. They also help reduce basement back -ups by pumping wastewater from our local sewers into the interceptors under pressure. The George Street North Relief Station is located in the George Street right -of -way just north of Weller Creek. It was built in 1971 and has been repaired over the years as needed. In 2010, a standby emergency generator with automatic transfer switch was installed and is operational. This station provides sanitary sewer relief for the area from Prospect Avenue to Weller creek, bounded by Edward Street to the west and Albert Street on the east. Staff created detailed bid specifications and bidding materials necessary to procure the needed retrofits, services and equipment. The improvements include the installation of a complete replacement pump station with new pumps, guide rails and controllers, along with all associated wiring and other electrical control equipment. The stand -by Page 2 of 3 Bid Results for George Street North Sanitary Relief Project (CIP) ($156,544) August 29, 2012 generator and automatic transfer switch installed in 2010 are in excellent condition and will not be replaced as part of this project. Since these stations are permitted by the MWRDGC, staff worked closely with a consulting engineer to ensure that the rehabilitation effort meets all permitting requirements. This effort required that staff maintain the same horsepower rating for all new pumps to match the existing permit. Staff also recommended standardizing pumps and other equipment between the various stations. Staff feels that this is an important aspect of the overall rehabilitation effort. This standardization effort allows staff to stock fewer spare parts as the pumps and their fittings now will be interchangeable between stations. In the past, pumps could not be interchanged in emergencies or required an extensive amount of effort to accommodate different flanges or other fittings to make them work for more than one station. The Village owns and maintains eight (8) sanitary relief stations and two (2) sewage lift stations. All of the sanitary relief stations operate in a manner similar to the George Street North station. Lift stations serve a different purpose. Lift stations pump wastewater from a lower elevation to a higher elevation so that it can be discharged to an interceptor sewer. In future years, staff intends to rehabilitate all of the sanitary relief and lift stations in the Village -owned wastewater collection system. Bid Results On Monday, August 27, 2012 at 1:00 P.M., sealed bids for the project were opened and read aloud. Six (6) invitational bids were distributed and public notice was placed in a local newspaper as required by law. Eight (8) additional bids were acquired by unsolicited vendors. Four (4) bids were received. The bid result was as follows: Discussion The consultant and staff reviewed the bid submittals and find that the bidders meet the intent of the specification, are qualified and are proposing similar equipment. Martam Construction of Elgin, Illinois has worked with the Village in the past on numerous projects. Martam's work for the Village has been timely and on budget. Staff finds that Martam Construction of Elgin, Illinois is the lowest responsible bidder. Bidder Total 1 Martam Construction Elgin, Illinois $ 142,313.00 2 Marc Kresmery Elgin, Illinois $ 145,250.00 3 DiMeo Brothers Elk Grove, Illinois $ 199,500.00 4 Kovilic Construction Franklin Park, Illinois $ 247,200.00 Discussion The consultant and staff reviewed the bid submittals and find that the bidders meet the intent of the specification, are qualified and are proposing similar equipment. Martam Construction of Elgin, Illinois has worked with the Village in the past on numerous projects. Martam's work for the Village has been timely and on budget. Staff finds that Martam Construction of Elgin, Illinois is the lowest responsible bidder. Page 3 of 3 Bid Results for George Street North Sanitary Relief Project (CIP) ($156,544) August 29, 2012 The project is scheduled to be completed and fully operational by late November. All landscaping and any asphalt or concrete work will also be completed before the end of the year. Since the existing station will be replaced under this contract, there is always the possibility of unforeseen issues arising during construction so staff is recommending the inclusion of a 10% contingency ($14,231.00). This would make the total award for this project $156,544 (base bid of $142,313 plus the 10% contingency of $14,231). The engineer's estimate for the replacement project was $175,000. Bid Recommendation I recommend accepting the lowest qualified bid for the George Street North Sanitary Relief Station Project as submitted by Martam Construction of Elgin, Illinois at a cost not to exceed $156,544.00. Sufficient funds for this project are available in the current budget. � Matt Overeem Water & Sewer Superintendent I Concur. Se6n P. Dorsey Director of Public Works MEO/ meo H:\ Water \projects\2012 \george \george street north.docx