Williamson County Recycled Water Project

Williamson County Recycled Water Project | City of Round Rock, Texas
By planning, marketing, and implementing reuse systems, we helped the city of Round Rock strengthen water supplies.
City of Round Rock
Round Rock, Texas, USA

The city of Round Rock is developing a new water reuse system that produces high quality reclaimed water from the Brushy Creek Regional Wastewater Treatment Plant (BCRWWTP) meeting the Texas Commission on Environmental Quality (TCEQ) Type I quality criteria to help offset growing demands on the city's potable water supplies. We have been working with the city by supporting development of this system for the last decade, including providing preliminary engineering for all 5 phases of the reuse system and subsequent design of two phases.

During the preliminary engineering phase, we prepared an extensive master plan for the proposed reuse system, which developed:

  • Reuse demands
  • Conceptual reuse system design and capital costs
  • Potential reuse service costs
  • A reuse implementation plan
  • A framework of institutional, financial and administrative issues related to water reuse
  • Identification of possible external funding sources
  • Definition of regulatory requirements for the reuse of treated effluent from the BCRWWTP

We evaluated several treatment alternatives to enable production of Type I reclaimed water at the BCRWWTP, which is a secondary activated sludge facility. Additionally, we performed a feasibility report (FR), environmental assessment (EA) and master plan update. The FR and EA were conducted pursuant to pre-construction requirements of the Federal Title XVI grant program for reuse projects administered by the Bureau of Reclamation. The FR predicted future water supply shortages in Round Rock and identified reuse as a viable component of the long range water supply. The results of the EA determined the proposed project would not significantly affect the quality of the human environment, which resulted in Finding of No Significant Impact (FONSI) under the National Environment Policy Act (NEPA).

Reclamation approved both the FR and EA and subsequently, all five phases of the reuse project were authorized for Title XVI funding; Phases 1-4 were completed by 2014.

Key Features

  • Master plan developed to allow phased implementation of infrastructure to meet budget needs
  • Successful navigation of regulatory framework to obtain project approvals and Title XVI funding authorization
  • Sustainable Features: Reclaimed Water, Water Reuse
  • Professional Services: Engineering & Design, Master Planning, NEPA Compliance, Regulatory Compliance
  • Project Type: Secondary Activated Sludge Facility, Wastewater Treatment, Water
  • Related Projects: Drinking Water, Water