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HomeMy WebLinkAbout07/17/2012 Deep Well 5 Evaluation and RepairMount Prospect Public Works Department INTEROFFICE MEMORANDUM �M?/ TO: VILLAGE MANAGER MICHAEL E. JANONIS FROM: WATER/ SEWER SUPERINTENDENT DATE: JULY 3, 2012 SUBJECT: BID RESULTS FOR DEEP WELL 5 EVALUATION AND REPAIR ($163,165) BACKGROUND When the Village began receiving Lake Michigan water from the City of Chicago through the North Suburban Municipal Joint Action Water Agency ( NSMJAWA); the Village capped and abandoned all ground water wells except for five (5). The Village maintains these five (5) potable water wells in a stand -by status to provide an emergency source of water in the event water from the City of Chicago or NSMJAWA is disrupted. To guarantee that the five (5) deep wells will operate when called upon, inspections and maintenance are performed at routine intervals in accordance with industry standards. Deep Well 5 is a deep setting (approximately 1,100 feet deep) line shaft pump located at the Highland Avenue Booster station (intersection of Highland Av. and Maple St.) The well is operated on a monthly basis, but Deep Well 5 was last removed for inspection and maintenance in 1998. The work at Deep Well 5 entails the removal of a 500 hp three -phase electric motor and the pulling of the line shaft piping from approximately 1,100 feet below grade where the pump bowl assembly sits in the aquifer. All airlines, shaft couplings, shaft piping and other appurtenances will be checked, replaced or rehabilitated as needed. The entire depth of the deep well will then be televised to determine if there are any defects that need to be addressed. Defects in wells are typically loose or broken pipe joints, cracks or holes in piping that may allow contaminants into the well or aquifer. Manhard Consulting Ltd of Vernon Hills, Illinois, a professional engineering consulting firm, has been engaged to develop related bid specifications and provide oversight of this rehabilitation project. BID RESULTS Bid documents were sent out in May 2012 to three (3) area well contractors who perform similar deep well work. Past deep well experience and a listing of similar deep well projects performed within the last two years was required to be submitted to qualify the firm as a responsible bidder. All firms that submitted bids were each highly qualified to perform such work. The bid was advertised and publicly opened on June 18, 2012. The following three (3) bidders responded: Contractor Total Bid Municipal Well & Pump, Waupun WI $135,970 Layne Christiansen, Aurora, IL $152,747 Water Well Solutions, Elburn IL $169,143 Page 2 of 2 Bid Results for Deep Well 5 Evaluation and Repair ($163,165) July 3, 2012 All bids meet the bid requirements, have the proper signatures, have sufficient deep well experience and provided all necessary bid certifications or deposits. All contractors who submitted bids have met all of the bid requirements and qualifications for similar deep well work. DISCUSSION The lowest cost proposal was from Municipal Well and Pump of Waupun, Wisconsin in the amount of $135,970. Municipal Well and Pump performed the inspection and repair work on Deep Well 5 when the well was last inspected in 1998. The work performed for the Village was satisfactory and on budget. Public Works staff called to verify references and the firm was considered responsive and capable by all. Our consultant, Manhard Consulting, has worked with or monitored the efforts of the firm, Municipal Well and Pump for over three decades and finds no issue with the firm. As it is nearly impossible to determine specific repairs or parts that may be needed without first pulling the deep well from its shaft; the industry practice is to ask for pricing for a list of possible repairs and then to add a contingency to the bid award for any such repairs that may be found. Staff is recommending that a contingency of 20% ($27,195) be added to the bid for any such additional repairs. Any repair work would be payable in accordance with the schedule of pricing submitted with their bid. Any amount remaining of the contingency will be returned to the budget. The original engineer's estimate for the inspection and subsequent repair work is $225,000. Sufficient funds exist in the current budget for this proposed expenditure. RECOMMENDATION I recommend that the Village Board accept the lowest cost, responsible and responsive bid for the Well 5 Evaluation and Repair Project from Municipal Well and Pump of Waupun, Wisconsin in the of amount $163,165 ($135,970 bid plus $27,195 contingency). Matt Overeem MEO/ neo C: \Users\sdorsey \Documents \Water \Well 5 \Rehab 2012 \Board report 2012.doc Sean P. Dorsey Director of Public Works