Project Detail
  • Wastewater Collection & Treatment

    GBRA Stein Falls Water Reclamation Facility Expansion

    New Braunfels, USA

    The project also introduced a new administration building to support the facility’s growing operational needs and accommodate future population growth in the New Braunfels region. Given the facility’s continuous exposure to hydrogen sulfide (H2S) and harsh microbial conditions typical of wastewater environments, the design team required a durable waterproofing and corrosion-resistant system to protect critical concrete infrastructure. Specifications called for either a UV and chemical-resistant lining or an integral crystalline admixture, ensuring long-term structural integrity and reduced maintenance across high-exposure zones.

    To meet these performance objectives, Xypex Bio- San was selected for use in approximately 1,585 yd3 of concrete across key process structures, including the coarse screening and grit removal units, clarifier, RAS-WAS system, tertiary filters, effluent flow meter, sludge storage basin, chemical system, and lift station. Bio-San’s unique crystalline formulation integrates antimicrobial technology that resists microbial-induced corrosion (MIC) while providing integral waterproofing protection. In addition, over 32,900 ft2 of interior surfaces received Xypex Concentrate to ensure complete crystalline coverage and long-term watertight performance. The Xypex crystalline system delivered a permanent, self-healing waterproofing solution, eliminating the need for external membranes and reducing the project’s lifecycle maintenance costs. Its proven resistance to chemical attack and hydrostatic pressure supports GBRA’s long-term goal of maintaining a sustainable, high-performance wastewater facility designed to protect both infrastructure and the environment.

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