Department of Utilities
Reference: Approving the procurement of #20-006280 Water Treatment Plant Expansion and Denitrification - Construction Manager at Risk
To: Mayor Gregory Mills and Members of City Council
Through: Marv Falconburg, Acting City Manager
Prepared By: Brett Sherman, Director of Utilities
Date Prepared: August 18, 2020
PURPOSE
Requesting City Council approval of formal solicitation for project #20-006280 Water Treatment Expansion and Denitrification - Construction Manager at Risk to the most responsive and responsible bidder, and approving the resolution giving the City Manager, or Designee, authority to sign the contract. Municipal Code Section 3.08.090, "...All bids and proposals in excess of $50,000 shall be awarded through formal written procedures by the City Council."
BACKGROUND/HISTORY
The City of Brighton (City) is under a compliance schedule by the Colorado Department of Public Health and Environment (CDPHE) to reduce the nitrate concentration in the waste discharge (brine) produced during the Reverse Osmosis (RO) treatment process. The City's peak day water demand is also nearing the existing treatment plants capacity and needs to be expanded to ensure dependable water supply moving forward. To address these issues the City contracted with Brown and Caldwell in September 2019 to pilot treatment alternatives that can both meet the new CDPHE discharge permit as well as increase the treatment capacity for future growth in the City.
Before you tonight is the Construction Manager at Risk (CMAR) contract award. At this time the contract amount is only for the pre-construction or design phase of the project but it is the full intent to retain the same contractor for the construction phase as well. The construction phase cost will come back once design has progressed to a level where a Guaranteed Maximum Price (GMP) can be established. The reason for getting the contractor on board during design is to maintain better cost certainty, h...
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