Provenance Engineering conducted a value engineering review of a $4.3-million lift station project with a 25-MGD design capacity. By identifying compounded factors of safety in the original design, Provenance proposed improvements that could save the City an estimated $1 million. The team worked closely with the City to evaluate cost-reduction alternatives, enhance operations, and ensure compliance with TCEQ requirements.
The review had to be expedited as construction was already underway, requiring results before the contractor reached critical construction milestones. Provenance identified a high-risk choke point in the system, where all wastewater flowed through a single pipe, creating a significant potential for system failure.
Provenance proposed raising the lift station floor by 11 feet, addressing an excessive 15.0 safety factor in the wet well design volume. Given the station’s 55-foot depth—35 feet of which was solid rock—adjusting storage volume calculations was critical. Additionally, the team recommended extending the discharge pipe 100 feet into the Wastewater Treatment Plant Headworks Facility. This bypassed the single point of failure, ensuring uninterrupted service even in the event of a pipe failure, significantly improving system reliability.
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Located in Dallas/Fort Worth, West Texas/Panhandle, and San Antonio