As a result of the ongoing drought and the increasing challenges associated with acquiring new surface and groundwater supplies, interest in potable use of reclaimed water has grown significantly in Texas, particularly in the more arid regions of the state. Texas has been a national leader in the implementation of potable reuse projects. Until recently, these projects involved indirect reuse, i.e., use of reclaimed water that is discharged to a stream or reservoir and diverted downstream for subsequent treatment and use. These indirect reuse projects have incorporated significant environmental buffers into their systems, with limits on percent blend of reclaimed water and established minimum detention times within the natural water bodies prior to diversion. Recent approval of two direct potable reuse (DPR) projects by the TCEQ combined with ongoing drought conditions has piqued interest in the water supply community about the viability of and risks associated with implementing more DPR projects in the state. In general, the consensus among experts is that potable reuse is a viable and safe water management strategy, if implemented with sufficient barriers, monitoring protocols and operational controls. Texas has been a leader in the development of potable reuse projects. However, it is critical that future projects be implemented in a way that gains public confidence and provides appropriate barriers and controls that protect public health and safety. A sound technical approach will be important for further development of water reuse as a water management strategy and will avoid jeopardizing the progress and success of water reuse in the state. This paper will provide an overview of the history of potable reuse in Texas and then describe current issues, projects and initiatives that are ongoing related to potable reuse in the state.

Potable reuse in Texas: A glimpse into the new water frontier

247th National Meeting (2014)

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