STRATEGIC PRIORITY: Transportation & Infrastructure
AGENDA DATE: September 11, 2024
COUNCIL DISTRICT(S): 6, Outside City Limits
DEPARTMENT: Water Utilities Department
EXECUTIVE: Dev Rastogi
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SUBJECT
Title
Authorize an increase in the construction services contract with Archer Western Construction, LLC, for additional work associated with improvements to the ozone generation facilities at the Bachman, East Side, and Elm Fork Water Treatment Plants - Not to exceed $1,073,195.26, from $36,420,755.00 to $37,493,950.26 - Financing: Water Construction Fund
Body
BACKGROUND
Dallas Water Utilities (DWU) operates three potable water treatment plants (Bachman, East Side, and Elm Fork) and provides water to approximately 2.6 million customers in the City of Dallas and neighboring communities. The combined treatment capacity of these facilities is approximately 900 million gallons per day. Ozone is the primary water treatment disinfectant at all three plants and allows DWU to comply with federal regulations governing disinfection by-products and improves the finished water quality by destroying taste and odor causing compounds. The first ozone system was installed at Elm Fork Water Treatment Plant in the early 1990's and ozone facilities were added to the East Side and Bachman Water Treatment Plants in 2002 and 2006 respectively.
An evaluation of critical performance limiting factors was completed at each plant, which identified the need to replace the ozone generating equipment. On September 23, 2020, the City Council authorized a construction services contract with Archer Western Construction, LLC for the replacement of the ozone generating equipment and appurtenances at the water treatment plants. The contract includes the purchase and installation of three new generators and associated equipment at Bachman, four new generators and associated equipment at East Side, and four new generators at Elm...
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