Title
Consider and take action on a resolution authorizing a professional services agreement with Ardurra Group, Inc. for the Condition Assessment and Preliminary Engineering Design services related to the Dallas Salmon Wastewater Treatment Plant Ultraviolet (UV) System Replacement Project (WW2501) in an amount not to exceed $410,700 (Executive Director of Capital Projects)
Background:
Approval of this resolution will authorize a professional services agreement with Ardurra Group, Inc. to perform the Condition Assessment and Preliminary Engineering Design services associated with the Dallas Salmon Wastewater Treatment Plant Ultraviolet (UV) System Replacement Project (WW2501) in an amount not to exceed $410,700.
The Dallas Salmon WWTP transitioned from chlorine gas disinfection to ultraviolet (UV) disinfection in 2000, with the WEDECO Tak 55 UV system installed as a state-of-the-art solution at the time of implementation. Over the past 24 years, the system has performed reliably well, however, it is now migrating into an unsupported lifecycle phase, meaning that replacement parts are no longer manufactured, and the availability of surplus components will continue to decline. Without intervention, the system will eventually reach an obsolete, unsupported stage. As part of our systematic effort in evaluating and assessing our 40-year-old facility treatment components, the proposed UV system potential replacement Condition Assessment and Preliminary Engineering Design will include:
· Evaluating the feasibility of reusing the current UV structure or constructing a new one.
· Assessing floodplain impacts and compliance with updated TCEQ regulations.
· Exploring hydraulic system improvements and alternative UV system configurations.
· Considering a plant flow capacity increase from 12 MGD/36 MGD to 16 MGD/48 MGD.
· Designing a new electrical building to meet 500-year flood protection requirements.
Ardurra Group, Inc. provided a conceptual construction cost of $6...
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