Falls Church Stormwater General Engineering

For over two decades, True Environmental has partnered with the City of Falls Church to deliver comprehensive stormwater management consulting services, completing 116 task orders totaling more than $5 million. This long-standing collaboration spans infrastructure modeling, drainage design, facility assessments, and policy development to enhance flood resilience and water quality. True’s work has been instrumental in addressing critical challenges such as residential flooding, commercial drainage improvements, and compliance with evolving MS4 permit requirements.

A major focus of True’s efforts has been advanced hydraulic modeling and conceptual retrofit design following severe flooding events, notably the July 2019 storm. Using xpswmm’s 1D and 2D modeling capabilities, True evaluated watershed conditions, visualized overland flow, and developed cost-effective solutions to mitigate future flooding. Beyond residential areas, True designed improvements for commercial storm sewer systems, assessed downstream impacts, and provided technical recommendations for integrating green infrastructure into redevelopment projects. These initiatives balance stormwater performance with the City’s redevelopment goals.

Complementing design and modeling work, True has supported the City through extensive programmatic services. These include stormwater facility inspections, SWPPP development for high-priority municipal sites, and updates to key manuals such as the Illicit Discharge Detection and Elimination guide. True also created employee training programs and public outreach strategies to promote pollution prevention and good housekeeping practices. Together, these efforts strengthen the City’s stormwater management framework, ensuring regulatory compliance, operational efficiency, and community resilience.