===== PDF PAGE 40 ===== [Extraction: OCR (rendered-page OCR)] CITY OF WEST CHICAGO INFRASTRUCTURE COMMITTEE AGENDA ITEM SUMMARY ITEM TITLE: AGENDA ITEM NUMBER: (Sela Resolution No. 22-R-0012 — Approval of a Contract with the Layne Company for Professional Services Related to the Rehabilitation of the Pump and Motor Assembly Associated with the City’s Well Station No. 6 for an Amount Not to Exceed $162,015.00 STAFF REVIEW: Mehul T. Patel, P.E., CFM, Director of Public Works SIGNATURE MW. es APPROVED BY CITY ADMINISTRATOR: Michael L. Guttman SIGNATURE. COMMITTEE AGENDA DATE: March 3, 2022 COUNCIL AGENDA DATE: March 21, 2022 ITEM SUMMARY: Well No. 6, located at 525 Industrial Drive, is one of the four City-owned shallow wells. The pump and motor assembly is a Bryon Jackson assembly installed in 1987. The well pump operates at a depth 211’ below ground, and is rated to pump approximately 850 gallons per minute (gpm). The well is powered by a 75 HP Byron Jackson Type H submersible motor with a mercury seal. Starting in the spring of 2018, Well No. 6 began exhibiting decreased performance. Currently, the well output has decreased to 670 gpm. Based on the decrease in performance, Well No. 6 is currently in need of inspection and rehabilitation. If left unchecked, the well assembly will likely experience complete failure or, in the worst case, the column pipe may separate and drop the assembly to the bottom of the casing. A casing is the pipe structure that is placed in the hole drilled in the earth to maintain the well opening. The City has multiple Byron Jackson assemblies at various well sites. Typically, these assemblies have lasted 15 to 20 years before needing rehabilitation. Well Station No. 6 was last serviced in 2008. Please note Layne Company (Layne) is the only company that can provide a Byron Jackson factory authorized service person. Due to their history of being a factory-authorized sales and service representative for Byron Jackson pumps and motors (including those containing mercury seals), as well as its satisfactory history of servicing the City’s well assemblies, staff solicited a proposal from Layne of Aurora, Illinois, to pull and rehabilitate the Well No. 6 Assembly (see attached proposal). Layne’s proposal includes a complete rebuild and rehabilitation of the existing well equipment including a television survey of the well casing. The estimated total for these services is $93,215.00. One additional item addressed in Layne’s proposal is replacement of the well motor, if needed. The existing motor has a mercury seal system that needs to be inspected before reinstallation. If inspection determines the mercury seal has failed and cannot be reused, a factory exchange replacement motor with mechanical seal has been quoted at a net cost of $68,800.00, for a total project cost estimate of $162,015.00. At this time staff does not foresee a need to replace the motor. City staff recommends the rehabilitation of the well assembly associated with Well Station No. 6 before the start of peak summer water system demand. Staff requests that a professional services contract be awarded to the Layne Company of Aurora, Illinois, related to the rehabilitation of the pump and motor assembly at the City’s Well No. 6, for an amount not to exceed $162,015.00. This is a budgeted item at ===== PDF PAGE 41 ===== [Extraction: OCR (rendered-page OCR)] CITY OF WEST CHICAGO $500,000.00 in Water Fund Account #06-34-47-4420. Please note Well No. 5 is located on this site and is in need of similar maintenance work. Staff will be presenting these projects to City Council as separate resolutions since both wells are independently operating pieces of equipment. Well No. 5 will also be billed to the same Account. The cost of Well No. 5 is not to exceed $317,960.00. ACTIONS PROPOSED: Approve a Resolution No. 22-R-0012 authorizing the Mayor to execute a contract with Layne Company for professional services related to the rehabilitation of the pump and motor assembly associated with the City’s Well No. 6 for an amount not to exceed $162,015.00. COMMITTEE RECOMMENDATION: The Infrastructure Committee voted 6-0 for approval.