===== PDF PAGE 42 ===== [Extraction: OCR (rendered-page OCR)] CITY OF WEST CHICAGO INFRASTRUCTURE COMMITTEE AGENDA ITEM SUMMARY ITEM TITLE: AGENDA ITEM NUMBER: ___©- G. Resolution No. 22-R-0013 — Layne Company — Approval of Contract for Professional Services Related to the Rehabilitation of the Pump and Motor Assembly COMMITTEE AGENDA DATE: March 3, 2022 Associated with the City’s Well Station No. 5 for an COUNCIL A . h21. 2022 Amount Not to Exceed $317,960.00 aia SEA ATE: March 21, STAFF REVIEW: Mehul T. Patel, P.E., CFM, Director of Public Works SIGNATURE. MU al —— APPROVED BY CITY ADMINISTRATOR: Michael L. Guttman SIGNATURE. ITEM SUMMARY: City’s Well No. 5, located at 525 Industrial Drive, is one of the five City-owned deep wells. It is the City’s oldest well in operation. The well assembly consists of a Gould’s Pump and Sunstar Motor with a mechanical seal, set at a depth of approximately 750 feet. The well is rated to pump 900 gallons per minute (gpm). The Well was constructed in 1967 and was last serviced in 2008. The 2008 project included replacement of the motor assembly, which had failed. Starting in 2018, Well No. 5 began to exhibit a decline in capacity (gpm). The well capacity is currently 650 gpm. Reduced capacity is indicative of an overall problem with the well assembly. If left unchecked, the well assembly may 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 placed in the hole drilled in the earth to maintain the well opening. Due to the observed performance issues, an inspection and service is required. Well No. 6, also located at 525 Industrial Drive is slated for rehabilitation in 2022. Well No. 6 is being presented as a separate project as both wells are separate, self-contained pieces of equipment. Layne is the sole source for the repairs to Well No. 6 due to its use of a mercury seal system. Due to its history servicing Well No. 5 and original equipment installation, staff solicited a proposal from the Layne Company to pull, inspect, and rehabilitate both well assemblies. Staff has also been satisfied with Layne’s work to date. Layne’s proposal includes a complete rebuild and rehabilitation of the existing well equipment, including a television survey of the well casing. This proposal also contains estimated provisions for new column pipe, cable, cleaning and re-coating of the existing column pipe, and an overall inspection of all well components. In staff's negotiations with Layne, a cost savings has been provided if both wells are serviced at the same time. Awarding both contracts to Layne will provide mobilization and service savings to the City. The estimated total cost for to rehabilitate Well No. 5 is $195,960.00. One additional item addressed in this proposal is replacement of the well motor, if needed. We have had previous issues with the motor at this well site, and it will need to be inspected before reinstallation. This type of motor typically does not have a long life span. If the inspection determines the unit cannot be reused, a new motor has been quoted at $122,000.00, for a total project cost of $317,960.00. Following service, the well assembly will be re-installed, tested, and returned to service. ===== PDF PAGE 43 ===== [Extraction: OCR (rendered-page OCR)] CITY OF WEST CHICAGO City staff recommends the rehabilitation of the well assembly before the start of our 2022 peak summer water system demand. Staff requests that the City Council authorize the Mayor to execute a professional services contract with Layne Company, for an amount not to exceed $317,960.00, for services necessary to remove, inspect, repair, re-install, test, and place the well assembly at Well Station No. 5. There is $500,000.00 budgeted in the Water Fund (06-34-47-4420) for needed pump station repairs, which is adequate to rehabilitate Well No.5, including the replacement of the motor, if needed. Well No. 6 will also be billed to the same Account. The cost of Well no. 6 is not to exceed $162,015.00. ACTIONS PROPOSED: Approve Resolution No. 22-R-0013 authorizing the Mayor to execute a contract with Layne Company for professional services related to the rehabilitation of the pump and motor assembly at the City’s Well No. 5 for an amount not to exceed $317,960.00. COMMITTEE RECOMMENDATION: The Infrastructure Committee voted 6-0 for approval.