Southeast Wastewater Treatment Plant Consolidation

Client: City of Houston
Houston, Texas


 Civitas provided engineering services for a two-phase consolidation of the Southeast WWTP from East haven and Sagemont WWTPs which would require expanding the Southeast WWTP capacity from 5.3 MGD to 15.2 MGD AADF and 32.3 MGD to 76 MGD 2-hr Peak Flow. 
Civitas designed a new onsite submersible lift station, a new bar screen headworks facility, expansion of the chlorine contact basin, the effluent Parshall flume, and new NPW system. For Phase 1 expansion, the chlorine contact basins are being expanded to accommodate the additional flow. A new Parshall Flume structure is being added due to increased flow. For Phase 2 expansion, a new 32.5 MGD submersible lift station and a new headworks structure with dual screen system (coarse screen followed by fine screen) was designed before pivoting to a single screen design. Additionally, Civitas designed a NPW system that includes a  new ground storage tank and NPW skid system.