STRATEGIC PRIORITY: Sustainable
AGENDA DATE: September 24, 2025
COUNCIL DISTRICT(S): Citywide
DEPARTMENT: Dallas Water Utilities Department
EXECUTIVE: Dev Rastogi
______________________________________________________________________
SUBJECT
Title
Authorize Supplemental Agreement No. 2 to the professional services contract with Black & Veatch Corporation to provide additional engineering services necessary for work associated with the Dallas Water Utilities Wastewater Facilities and Operations Strategic Plan - Not to exceed $206,205.00, from $3,498,000.00 to $3,704,205.00 - Financing: Wastewater Capital Improvement F Fund
Body
BACKGROUND
The City of Dallas owns and operates two wastewater treatment plants with a combined capacity of 280 million gallons per day as well as various lift stations and flow control/diversion structures. On November 9, 2022, the City Council authorized a professional services contract with Black & Veatch Corporation to develop a comprehensive strategic plan for Dallas Water Utilities’ (DWU) Wastewater Treatment Facilities and Operations. The effort consists of assessing the City of Dallas' treatment facilities, associated infrastructure, and pretreatment program. The goal of the Wastewater Facilities and Operations Strategic Plan is to identify needs using a comprehensive and systematic approach to establish priorities and develop recommendations for a long-range capital improvements plan.
In Summer 2025, DWU completed preliminary recommendations from the Wastewater Facilities and Operations Strategic Plan. The new strategic plan was built on the work of the previous plan completed in 2010 and provides an updated road map for a 20-year planning horizon. A preliminary recommendation identified the need to replace the existing White Rock Plant trickling filters at the Central Wastewater Treatment Plant (CWWTP) which were installed in 1954 and are not performing at an optimal level. One of the recommended alternatives includes the addition of Biologically Active Filtration (BAF) to replace the existing trickling filters. Prior to full-scale implementation, a test study is recommended to validate BAF treatment effectiveness and ensure operational resilience under varying conditions.
This action will authorize Supplemental Agreement No. 2 to the professional services contract with Black & Veatch Corporation to provide additional engineering services to perform testing of the recommended BAF treatment technology to validate its effectiveness and performance. The scope of work includes the development of testing protocols and conducting testing at CWWTP including data review, report preparation, project management, Water Research Foundation research grant coordination, and regulatory agency coordination. The pilot-scale study will demonstrate the full operational and maintenance capabilities of BAF, validate performance, and gather design parameters. The findings will be applied in full-scale implementation at CWWTP to improve treatment efficiency and meet future treatment capacity demand.
ESTIMATED SCHEDULE OF PROJECT
Begin Services October 2025
Complete Services June 2026
PRIOR ACTION/REVIEW (COUNCIL, BOARDS, COMMISSIONS)
On November 9, 2022, the City Council authorized a professional services contract with Black & Veatch Corporation to provide engineering and consulting services for the Dallas Wastewater Facilities and Operations Strategic Plan by Resolution No. 22-1697.
FISCAL INFORMATION
|
Fund |
FY 2025 |
FY 2026 |
Future Years |
|
Wastewater Capital Improvement F Fund |
$206,205.00 |
$0.00 |
$0.00 |
Original Contract $3,498,000.00
Supplemental Agreement No. 1 $ 0.00
Supplemental Agreement No. 2 $ 206,205.00
Project Total $3,704,205.00
LOCAL PARTICIPATION
|
Prime |
Status |
Workforce % |
|
Black & Veatch Corp. |
Local |
39.5% |
OWNER/EXECUTIVE
Black & Veatch Corporation
Mario Azar, Chief Executive
MAP
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