The City of Eastland hired eHT to provide project management, planning and design for improvements to its wastewater treatment plant (WWTP) and wastewater collection system. The WWTP mechanical equipment had reached the end of its useful life and needed to be rehabilitated or replaced. In addition, the existing WWTP had only one secondary treatment train which limited the City’s ability to conduct preventative maintenance at the facility. The existing WWTP also had hydraulic capacity limitations and experienced multiple backups and solids washout during peak flows.

The WWTP improvements included a reduction in permitted flows, conversion to a Sequencing Batch Reactor (SBR) system, converting the old oxidation ditch basin into a flow equalization basin to reduce peak flows through the plant, a hydraulic study, replacement of the mechanical screen, upgrade of the existing solids dewatering system with a new mechanical dewatering system, replacement of the failing UV disinfection system with a chlorine disinfection system, and replacement of the Oak Hollow Lift Station and collection system improvements. The project was funded through the Texas Water Development Board (TWDB) Clean Water State Revolving Fund (CWSRF).