===== PDF PAGE 32 ===== [Extraction: OCR (rendered-page OCR)] CITY OF WEST CHICAGO INFRASTRUCTURE COMMITTEE AGENDA ITEM SUMMARY ITEM TITLE: AGENDA ITEM NUMBER: ___7. A. Resolution No. 23-R-0020 — Layne Company — Professional Services Related to the Well Station No. 11 Rehabilitation Project for an Amount Not to Exceed $220,429.00. COUNCIL AGENDA DATE: March 20, 2023 COMMITTEE AGENDA DATE: March 2, 2023 STAFF REVIEW: Mehul T. Patel, P.E., CFM, Director of Public Works ee | APPROVED BY CITY ADMINISTRATOR: Michael L. Guttman ye. SIGNATUR V4 ITEM SUMMARY: Well No. 11, located at 2290 Smith Road, is one of the four City-owned shallow wells. The well assembly consists of a Byron Jackson Pump and a Type H Byron Jackson motor with a mercury seal, set at a depth of approximately 210 feet. The well is rated to pump 400 gallons per minute (gpm). The Well was constructed in 1996 and was last serviced in 2009. The 2009 project included replacement of the pump assembly, which had failed. Starting in 2017, Well No. 11 began to exhibit a decline in capacity (gpm). The well capacity is currently at 130 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, whichis the pipe structure placed in the hole drilled in the earth to maintain the well opening. The well assembly is due for inspection and service. Due to its history servicing the well and knowledge of original equipment installation, staff solicited a proposal from the Layne Company to pull, inspect, and rehabilitate the well assembly. 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 overall inspection of all well components. The estimated total for these services is $220,429.00. Another item included in this proposal is a replacement of the well motor, if needed, for $73,812. The existing motor has a mercury seal system, which needs to be inspected before reinstallation. Following service, the well assembly will be re-installed, tested, and returned to operation. City staff recommends the rehabilitation of the well assembly before the start of our 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 $220,429.00, for services necessary to remove, inspect, repair, re- install, test, and place the well assembly at Well Station No. 11. There is $210,000 budgeted in the Water Fund (06-34-47-4420) for needed pump station repairs. ACTIONS PROPOSED: Approve Resolution No. 23-R-0020 authorizing the Mayor to execute a contract with Layne Company for professional services related to the Well Station No. 11 Rehabilitation Project for an amount not to exceed $220,429.00. COMMITTEE RECOMMENDATION: The Infrastructure Committee voted 7-0 for approval.