STRATEGIC PRIORITY: Mobility Solutions, Infrastructure, and Sustainability
AGENDA DATE: June 23, 2021
COUNCIL DISTRICT(S): Outside of City Limits
DEPARTMENT: Water Utilities Department
EXECUTIVE: Majed Al-Ghafry
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SUBJECT
Title
Authorize Supplemental Agreement No. 6 to the professional services contract with Black & Veatch Corporation for additional engineering and construction phase services for water quality improvements at the East Side Water Treatment Plant - Not to exceed $1,286,000.00, from $22,634,885.00 to $23,920,885.00 - Financing: Water Capital Improvement D Fund
Body
BACKGROUND
In June 2006, Dallas Water Utilities initiated a two-part study to investigate water quality concerns and provide recommendations to improve water quality and stability. The study and requisite testing confirmed that the treated water chemically changes as it moves through the distribution system. The resulting Water Quality Report recommended the implementation of enhanced organic removal at all three water treatment plants including enhanced coagulation and biological filtration.
Black & Veatch Corporation was selected based on qualifications to perform engineering and design services at the East Side Water Treatment Plant for the implementation of recommended water quality improvements. The initial professional services contract was approved by City Council on June 23, 2010 and was anticipated to be supplemented as work progresses to ensure a targeted approach. Five previous Supplemental Agreements have been executed on this contract with the most recent on September 25, 2019. This action includes construction phase services for the Residuals Handling - Phase 1 Project as well as extended construction phase services for two on-going and related water quality construction projects at the East Side Water Treatment Plant, the Flocculation and Sedimentation Basins and the Biological Filtration Optimiz...
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