Ardurra provided planning, modeling, and design services for wet-weather flow storage facilities for the Trinity River Authority's Denton Creek Regional Wastewater System. The project addressed the need to temporarily store peak wet weather flows to reduce impacts on the treatment plant and improve operational flexibility. The team performed wet-weather flow modeling using historical rainfall data and a hydraulic model of the collection system to evaluate flow impacts during extended storm events, establishing a methodology for sizing storage volumes based on USGS storm-coverage criteria. The recommended solution included odor-control systems, flushing mechanisms for storage tanks, and a return-flow pumping system. Key improvements included peak-flow treatment pump replacements, a 6 MGD firm-capacity lift station, two 8.75 MG ground storage tanks, and the rehabilitation of multiple plant components.
Key Highlights:
- Developed custom methodology for sizing wet weather storage to balance peak flows and storm risk using USGS criteria
- Designed two 8.75 MG ground storage tanks and a 6 MGD lift station to manage wet weather events effectively
- Improved plant reliability through pump replacements and multiple component rehabilitations
The project enhanced Trinity River Authority's ability to manage wet-weather events while mitigating peak-flow impacts on treatment processes and providing flexibility for future construction sequencing and process upgrades.
