In order to maintain compliance with TCEQ regarding its wastewater system, the City of Breckenridge (City) selected eHT to provide design and construction management for an upgrade of its wastewater treatment plant (WWTP) to respond to challenges with infiltration and inflow (I/I) of water into the City’s wastewater collection system, which led to excessive flow loading at the WWTP during wet weather events.  Those high flows combined with the lack of solids storage at the WWTP resulted in violation of the Texas Pollutant Discharge Elimination System (TPDES) permitted effluent limits.  The WWTP also received notices of violation (NOV) following recurring overflows, mostly due to an internal re-lift pump station (Re-lift PS) failing to restart after power outages.  The plant was also at risk for major permit violations since the WWTP only had one operable clarifier.

The completed project consisted of constructing a new clarifier at the south edge of the plant, converting the existing small clarifier to a sludge holding tank, and rehabilitating the rest of the plant. The completed project also included isolation of the unused filters, electrical and control system improvements, influent screening, installation of aspirating aerators to replace the old floating disc aerators, rehabilitation of the chlorine contact basin structure, plant water system improvements, RAS/WAS pumping rehabilitation, and installation of a backup generator.