Big Spring Raw Water Production Facility: Third Party Process Review

Client: Colorado River Municipal Water District
Location: Texas

The Colorado River Municipal Water District (CRMWD) retained Hazen and Sawyer to perform a third-party evaluation of the performance and operation of the Big Spring Raw Water Production Facility (BSRWPF). This facility is one of two direct potable reuse plants currently in operation in Texas to provide a necessary supplement to dwindling water supplies in the face of drought conditions. The plant treats tertiary effluent from the neighboring City of Big Spring Wastewater Treatment Plant. The plant can produce up to 2.5 mgd of high quality recycled water using microfiltration, reverse osmosis, and advanced oxidation.

The plant supplements up to 20% of the raw water supply for the city, producing a high quality treated water from the advanced treatment plant.

Hazen and Sawyer were selected in 2015 to provide a third party review of the process and operations at the facility.

As part of this project, we reviewed the operations and condition of the facility's microfiltration system.

We also reviewed the plant's chemical feed system.

Project Outcomes and Benefits

  • Evaluated BSRWPF operating data and trends to benchmark past and current condition of plant and equipment, especially MF and RO membranes.
  • Identified enhancements/validated plant operating protocols with emphasis on treatment chemical operations.
  • Reviewed prior autopsy reports, in relation to operating trends, to estimate the current point in the lifecycle of the RO membranes.
  • Identified improvements to increase performance and prolong asset life.
  • The project was completed on time and on budget in early 2015.

For more information on this project, or to discuss a similar project in your area, contact Troy Walker at