Water System Corrosion Control Improvements

• 90900-016.0 Bid Document (PDF, 98MB)
• 90900-016.0 Distribution List (PDF, 101KB)
• 90900-016.0 Drawings (PDF, 105MB)
• 90900-016.0 Specifications (PDF, 6MB)

SCOPE OF WORK

The scope of this project is to replace the existing phosphate feed system at Pump Station Nos. 1, 3, 4, 8, 9, 11, 12, 14, 22, 24, 25, and 39 with a system to feed blended ortho-polyphosphate to the water distribution system. The design is intended to improve operation and maintenance by standardizing equipment and minimizing chemical handling.

Work includes new chemical tanks, transfer pumps, and feed pumps along with all piping, electrical and instrumentation to provide a complete working system as described herein. The chemical system will be automated with SCADA control capability to transfer chemical from the bulk storage tanks to day tanks and ultimately feed product to the distribution system. The proposed system configuration at each pump station has been developed to meet the City’s goal to limit structural and architectural modifications or expansion. New prefabricated fiberglass structures will be installed at four (4) of the sites to house the proposed equipment; PS 8, 12, 14, & 22, while the work at the other sites will be within the existing facilities.

The contract and work shall be carried out in conformance with ACI Standards, ASTM Standards, Details of the City of Kalamazoo and Ordinances of the City of Kalamazoo in effect on the date of invitation for bids.

The bidder shall furnish all labor, supervision, supplies, tools, equipment and other means necessary or proper for performing and completing the work. The bidder shall be responsible for the cleaning up of the job site and shall repair or restore all structures and property that may be damaged or disturbed during performance of the work to the satisfaction of the Public Services Department for the City of Kalamazoo.

The bidder shall have all work completed by May 30, 2025.