City of Brighton - File #: ID-432-20

• File #: ID-432-20
• Version: 1
• Type: Resolution
• Status: Agenda Ready
• File created: 8/25/2020
• In control: City Council
• On agenda: 9/1/2020
• Title: A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF BRIGHTON, COLORADO, APPROVING THE CONTRACT AMENDMENT FOR PHASE II – 30% OF PROJECT #19-020 WATER TREATMENT PLANT EXPANSION & DENITRIFICATION DESIGN SERVICES TO THE CONTRACT OF BROWN AND CALDWELL INC. AND APPROVING THE CONTRACT AMENDMENT IN THE AMOUNT OF $3,268,492.00 (THREE MILLION TWO HUNDRED SIXTY-EIGHT THOUSAND FOUR HUNDRED NINETY-TWO DOLLARS), AND AUTHORIZING THE CITY MANAGER, OR DESIGNEE, TO SIGN THE CONTRACT AMENDMENT ON BEHALF OF THE CITY AND THE CITY CLERK TO ATTEST THERETO

Date	Ver.	Action By	Action	Result
9/1/2020	1	City Council

Department of Utilities
Reference: Approving of Contract Amendment for Phase II - 30% of #19-020 Water Treatment Plant Expansion & Denitrification Design Services Project

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 20, 2020
PURPOSE
Requesting City Council approval of Contract Amendment for Phase II - 30% for project # 19-020 Water Treatment Plant Expansion & Denitrification Design Services Project, 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 complete design and construction in 3 phases. Phase I consisted of piloting different treatment alternatives that can both meet the new CDPHE discharge permit as well as increase the treatment capacity for future growth in the City. Brown and Caldwell has completed Phase I of the Water Treatment Plant Expansion & Denitrification Design and working with staff was able to complete a scope and cost for Phase II - 30%.

Before you tonight is the contract amendment approval for the Phase II - 30% design. This phase consists of getting construction documents and specification to the 30% level as well as a 30% engineer's opinion of probable cost to compare against the CMARs 30...