LCRA water plan may not be viable

AUSTIN - Some answers are emerging from a multiyear study of a water-sharing plan for the Colorado River basin and the San Antonio area, but the verdict is still out on whether the proposal is viable, 125 residents and stakeholders were told at a project update meeting late last month.

The Lower Colorado River Authority is studying the proposal to develop, conserve and share water with San Antonio Water System. LCRA hosted the meeting in El Campo to provide an update on scientific studies, now in their fifth year. The study period is scheduled to end no later than 2015.

The LCRA-SAWS Water Project proposes to reduce demand for water for irrigated agriculture and to produce more groundwater for use by farmers in Colorado, Wharton and Matagorda counties. The project also proposes building a holding basin, or off-channel storage facility, to capture and store water from rainfall and from upstream sources.

With the water saved and produced, LCRA would be able to provide a more reliable water supply for irrigation, meet requirements for higher lake levels in lakes Travis and Buchanan, and make up to 150,000 acre-feet of water available for SAWS annually for about 80 years. If the project goes forward, it would take many years and an estimated $2.2 billion to $2.4 billion to complete.

The most appropriate location for the holding basin is Pierce Ranch in Wharton County, LCRA consultants said. The preferred site was identified after studying a variety of criteria, from environmental impact to cost. After completing the study, LCRA does not plan to use lands earlier identified as potential storage sites in Colorado and Matagorda counties, said Leah Manning, who is heading the studies for LCRA.

Bob Brandes, a consultant who is leading the water availability study, said it is too early to say how much water supplies will cost and how much can be provided. He said preliminary data show that water could be made available to SAWS while also meeting the project's water supply goals for the lower Colorado River basin. However, there are unanswered questions still under study that could affect the project, such as the impact of groundwater development and the need for water for environmental purposes.