PILLAR: Sustainable
AGENDA DATE: June 24, 2026
COUNCIL DISTRICT(S): Citywide
DEPARTMENT: Dallas Water Utilities Department
PRIORITY: Infrastructure
______________________________________________________________________
SUBJECT
Title
Authorize a construction services contract for the Bachman Water Treatment Plant Liquid Ammonium Sulfate Facilities and Clearwell Mixing Improvements Project - CLW Water Group, LLC, lowest responsible bidder of three - Not to exceed $8,244,000.00 - Financing: Water Capital Improvement G Fund
*In alignment with Water and Wastewater Capital Improvement Program.
Body
BACKGROUND
In June 2006, the Dallas Water Utilities Department (DWU) initiated a two-part study to investigate water quality concerns in parts of the water delivery system. The study and requisite testing confirmed that the treated water chemically changes as it moves through the water distribution system. Recommendations included process changes, design, construction, and implementation of improvements at all three water treatment plants to improve water quality and deliver stable treated water into the distribution system.
In June 2010, Carollo Engineers was awarded a professional services contract to perform engineering services at the Bachman Water Treatment Plant (WTP) for water quality improvements. Bachman WTP was constructed in the late 1920s and underwent expansions in 1936, 1948, and 2006. The plant can treat 150 million gallons of water per day and is Dallas’ only water treatment plant located within the city limits. The completed efforts have provided significant water quality improvements, leading to more stable water in the distribution system for areas served by the plant.
On August 12, 2020, City Council authorized a supplemental agreement to Carollo Engineers for the design of a Liquid Ammonium Sulfate (LAS) facility at Bachman WTP as part of additional recommended improvements from water quality and master planning assessments. Construction of the new facility and mixing improvements was postponed due to budget constraints. In February 2026, DWU authorized Carollo Engineers to finalize the design and prepare documents for construction advertisement.
This action will authorize the award of a construction services contract for the new LAS system facility and clearwell mixing improvements. The project will convert existing facilities from gaseous ammonia (a hazardous chemical system) to a LAS system, which is a better system from an operational and safety perspective for both employees and surrounding neighborhoods. Improvements will also provide better disinfection chemical mixing to ensure safe drinking water in the distribution system.
CLW Water Group, LLC has had no contractual activities with the City of Dallas within the past three years.
ESTIMATED SCHEDULE OF PROJECT
Begin Construction July 2026
Complete Construction January 2028
PRIOR ACTION/REVIEW (COUNCIL, BOARDS, COMMISSIONS)
This item has no prior action.
FISCAL INFORMATION
|
Fund |
FY 2026 |
FY 2027 |
Future Years |
|
Water Capital Improvement G Fund |
$8,244,000.00 |
$0.00 |
$0.00 |
LOCAL PARTICIPATION
|
Prime |
Status |
Workforce % |
|
CLW Water Group, LLC |
Local |
24.53% |
PROCUREMENT INFORMATION
The following three bids with quotes were received on March 27, 2026:
*Denotes successful bidder
Bidders Bid Amount
*CLW Water Group, LLC $8,244,000.00
4350 Alpha Road, Suite 100
Archer Western Construction, LLC $8,473,250.00
Gadberry Construction Company, Inc. $8,864,900.00
OWNER/EXECUTIVE
CLW Water Group, LLC
David Caldwell, President
MAP
Attached