City of Aurora Opengov #26-105

Well 115 Pumping Equipment and Well Rehabilitation

The City of Aurora is seeking a contractor to rehabilitate Water Well No. 115 and restore reliable, sustainable pumping capacity. - Government buyer: City of Aurora, Illinois — Water Production Division. Engineering Enterprises, Inc. is identified as the project engineer. - Scope: Remove and inspect the existing pump, motor, piping, cables, valves, and related equipment; repair or replace components; clean and redevelop the well and aquifer; reinstall equipment; test, disinfect, and restore the site. - Named OEMs and suppliers: Byron Jackson/Flowserve is the specified pump manufacturer and is named for the existing Type H motor and Type M motor option. Sun-Star is an alternate motor supplier; Pump Group and Simflo are alternate pump suppliers. Dynotek is named for the Owner-provided Slimline pressure transducer. Engineering Enterprises, Inc. is the named project engineer, not an OEM. - Key quantities: 95 linear feet of 1½-inch PVC carrier pipe; 21 linear feet of new 8-inch discharge column pipe; 63 linear feet of existing pipe rehabilitation; 2 television surveys; 8 hours of bailing; and 3 hours of pumping tests. The bid schedule also includes two O-rings, three couplings, one surge valve, and one 8-inch by 5-foot stainless-steel pipe. - Pump and motor requirements: The pump specification gives duty points of 875 gpm at about 210 feet total dynamic head and 700 gpm at 250 feet, with at least 80% guaranteed efficiency and a maximum synchronous speed of 1,760 rpm. A new motor specification calls for 60 HP, 460V, three-phase, 1,760 rpm and at least 86% efficiency. A separate alternate covers conversion of the existing 75 HP Type H motor to a Type M double-mechanical-seal motor. - Alternates: Price a Byron Jackson/Flowserve Type M motor, a Sun-Star Type M motor, Pump Group and Simflo pumping assemblies, rehabilitation of the existing Byron Jackson/Flowserve pump, and conversion of the existing motor. - Notable requirements: The intended result is sustainable well yield without throttling. Aquifer treatment must use NSF 61-certified products; pumping tests must measure discharge, water levels, and recovery; and the contractor must provide inspection and test documentation. A $7,500 contingency allowance is included.

Description

The City of Aurora is seeking qualified contractors to provide labor, materials, equipment, and related services to rehabilitate existing Well 115 for its Water Production Division. Work includes inspecting and evaluating the well and pumping equipment, performing necessary maintenance, repairs or replacements, redevelopment of the aquifer formation, and testing and disinfection. The project is intended to restore sustainable well yield and maintain a safe pumping level. Bids must be submitted electronically through OpenGov by November 18, 2026, at 11:00 a.m. Central Time.

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