STRATEGIC PRIORITY: Sustainable
AGENDA DATE: April 9, 2025
COUNCIL DISTRICT(S): Citywide
DEPARTMENT: Dallas Water Utilities Department
EXECUTIVE: Dev Rastogi
______________________________________________________________________
SUBJECT
Title
Authorize a professional services contract with Brown and Caldwell to provide engineering services associated with a chemical optimization and corrosion control study of the City of Dallas water treatment and distribution system - Not to exceed $3,042,487.00 - Financing: Water Construction Fund
Body
BACKGROUND
Dallas Water Utilities Department (DWU) provides water, wastewater, and storm water services to approximately 2.6 million people in the City of Dallas and 27 neighboring communities. DWU has water rights to seven reservoirs and operates large raw water conveyance infrastructure and three potable water treatment plants: Bachman, Elm Fork, and East Side. The combined treatment capacity of the facilities is 900 million gallons per day (MGD).
A Water Production Facilities Strategic Plan was completed in 2024 and recommended that DWU study how to optimize chemical usage at each of the three water treatment plants and corrosion control treatment in the water distribution system. The purpose of the chemical optimization and corrosion control study is to evaluate current and potential treatment chemicals for improved water quality and reduction in cost for treatment and necessary flushing, while ensuring no negative impacts on distribution system water quality. This project will also provide recommendations for optimum chemical doses and chemical mixing and pumping to be effective throughout the entire flow range.
This action will authorize a professional services contract with Brown and Caldwell to identify the optimal chemical usage for each treatment process including dosage recommendations for the purpose of meeting DWU water quality goals while minimizing the overall life cycle costs of chemicals used for treatment and corrosion control. The evaluation will include but is not limited to chemical costs, chemical application/sequencing/mixing, chemical equipment, residuals management and the impacts to corrosion control in the DWU water distribution system. Brown and Caldwell will also recommend a cost-effective corrosion control strategy for the DWU distribution system to meet recent regulations without negative impacts on water quality.
The consulting firm for this project was selected following a qualifications-based selection process in accordance with City of Dallas Administrative Directive 4-05 procurement guidelines.
ESTIMATED SCHEDULE OF PROJECT
Begin Study April 2025
Complete Study August 2027
PRIOR ACTION/REVIEW (COUNCIL, BOARDS, COMMISSIONS)
This item has no prior action.
FISCAL INFORMATION
|
Fund |
FY 2025 |
FY 2026 |
Future Years |
|
Water Construction Fund |
$3,042,487.00 |
$0.00 |
$0.00 |
M/WBE INFORMATION
In accordance with the City’s Business Inclusion and Development Policy adopted on September 23, 2020, by Resolution No. 20-1430, as amended, the M/WBE participation on this contract is as follows:
|
Contract Amount |
Procurement Category |
M/WBE Goal |
|
$3,042,487.00 |
Architecture & Engineering |
34.00% |
|
M/WBE Subcontracting % |
M/WBE Overall % |
M/WBE Overall Participation $ |
|
34.37% |
34.37% |
$1,045,840.00 |
|
• This contract exceeds the M/WBE goal. |
|
• Brown and Caldwell - Local; Workforce - 20.00% Local |
OWNER/EXECUTIVE
Brown and Caldwell
Richard M. D’Amato, Chief Executive Officer/President/Chairman of the Board
MAP
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