Featured Project

aWaggoner partnered with the City of Lake Charles, Louisiana to provide engineering design, construction management and resident inspection services for its wastewater treatment plant (WWTP). The project aimed to replace the outdated and insufficient WWTPs “B” and “C” with a state-of-the-art facility capable of meeting the city’s evolving needs.

The scope of construction encompassed the development of a new wastewater treatment plant featuring essential components such as an influent pump station, headworks, two multi-channel oxidation ditches, three clarifiers, an activated sludge pump station, UV disinfection system and non-potable water infrastructure along with all miscellaneous structural, electrical and supervisory control and data acquisition (SCADA components). The new treatment plant was designed with a hydraulic/treatment capacity to accommodate average daily flows of up to 6.2 MGD and handle instantaneous peaks reaching 38 MGD, significantly bolstering capacity and efficiency.

In addition, Waggoner provided engineering design, construction management and resident inspection for the demolition of the obsolete WWTPs “B” and “C.” The demolition involved the complete removal of WWTP “B” along with selective demolition at WWTP “C” that retained essential components such as aerators and sludge processing equipment. Upgrades to electrical infrastructure and expansion of sludge processing capabilities further optimized efficiency.

Notably, the Contraband Lift Station underwent enhancements, with the extension of dual 24-inch forcemains into a new collection box feeding the influent pump station of the new treatment plant, ensuring seamless integration and operation.

Waggoner’s comprehensive approach across engineering design and construction engineering and inspection services (CEI) ensured the successful modernization of Lake Charles’ wastewater treatment infrastructure, enhancing operational efficiency and sustainability for years to come.