Overview
The City of Highland Park’s George B. Prindle water plant provides treated potable water for 60,000 people in Highland Park, Deerfield, Lincolnshire, Bannockburn and Glenbrook Sanitary District. It is a Lake Michigan plant which employs ultrafiltration (Evoqua) technology installed in 2013-14. The plant has six High Service pumps, 5 with 500 HP and one with 350 HP motors. Two of the 500 HP pumps are VFD equipped with the remaining 4 controlled by soft starters. High Service pump VFDs are particularly valuable as the City’s distribution system is a closed system.
The City determined that a third VFD-equipped 500 HP High Service pump was necessary to better match flow and pressure to match customers’ demands and to provide redundancy to the two existing VFD-equipped pumps.
Horner & Shifrin provided the following engineering services to the City:
- Evaluated options for new VFD based on necessary and desirable features.
- Determined optimum location within the existing MCC.
- Developed plans and specifications for furnishing & installation of the recommended VFD.
- Developed plans and specifications for all wiring (power and control wiring).
- Prepared project cost estimate and bid forms.
- Bidding and construction administration services including evaluation of bids, review of submittals, shop drawings and pay requests
