We have done dozens of projects at the Erie Wastewater Treatment Plant through the years, including work on the new Overflow Retention Facility where we modified an existing sludge holding tank into a chlorination tank.The scope of work included 30' high concrete baffle walls, 60" diameter piping, and slide gates. We built concrete duct banks and equipment foundations for an electrical systems upgrade and concrete foundations, paving, and polymer feed system for an equipment building. We installed a new 12' diameter, 18' deep storm water concrete lift station, complete with valve vault, piping, pumps, and removal of the existing lift station. We built a new 27,000sf sludge thickener building that included site shoring, massive excavation, slurry walls, dewatering, concrete structure, as well as process equipment, pumps, process piping, and electrical controls.