R2016-118 AUTHORIZING EXECUTION OF CONTRACT WITH ALTORFER INC.

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DEPARTMENT OF WATER MANAGEMENT Memorandum No. 2016-13 September 26, 2016 TO: Mayor Julie Moore Wolfe and City Council FROM: Tim Gleason, City Manager Keith Alexander, Director of Water Management SUBJECT: South Water Treatment Plant Generator Switchgear Control System Replacement, City Project 2016-34 SUMMARY RECOMMENDATION: Council adopt the attached Resolution authorizing Altorfer Inc. South Water Treatment Plant Generator Switchgear Control System Replacement Contract at a cost not to exceed $188,734. BACKGROUND: The South Water Treatment Plant (SWTP) requires a significant amount of electricity 24/7/365 to purify and pump drinking water to our customers. The plant has a 4,160 volt electrical supply from Ameren Illinois with two separate overhead wire feeds. The Ameren supply is interrupted without warning several times annually. When interruptions occur, the SWTP has two large Caterpillar diesel powered generators to supply electricity to the plant. The Caterpillar switchgear control system that automatically turns the generators on when interruptions occur was installed in 2001. Over the past 15 years the switchgear control system has been maintained by Altorfer Inc., our area Caterpillar authorized representative. However, critical components of the system have reached their reliable service life and require immediate replacement. Due to age, these critical components are no longer available from Caterpillar or elsewhere. Therefore City staff negotiated a switchgear control system replacement contract with Altorfer consisting of the following work: Proposal No. 106662-1: Inspect and maintain the switchgear and components that connect to the South Water Treatment Plant's electrical supply to ensure that the switchgear is in good working order prior to replacing the switchgear control system at a cost of$18,424. Proposal No. 106666-1: Program and replace the switchgear control system touchscreen, programmable logic controllers, transducer, PLCs, software and other components, and a minor contingency at a cost of$170,310. The total cost of the contract is not to exceed $188,734.