Southland Holdings Inc. has completed a 16-year commitment to transforming the East Side Water Treatment Plant in Sunnyvale, Texas. With a total contract value of $274 million, the project included significant upgrades to enhance facilities and increase the capacity for clean drinking water for the City of Dallas residents. The comprehensive improvements involved four large-scale construction projects: Clear Wells and Flumes, Headworks and Chemical Improvements, Flocculation and Sedimentation Basin Improvements, and Biological Filtration Optimization Improvements. The earliest project began in December 2008, and the latest was completed in November 2024, resulting in a facility that stands as a model of engineering innovation, sustainability, and operational efficiency.