Spinks: Water district still considers aquifer as possible supplement to lake

Steve Nash steve.nash@brownwoodbulletin.com
Dennis Spinks

 The Brown County Water Improvement District continues to look to the Trinity Aquifer in eastern Brown County as a potential alternate water source to ease the demands on Lake Brownwood.

Dennis Spinks, general manager of the Brown County Water Improvement District, said the water district received a proposed contract Wednesday from Collier Consulting of Stephenville.

The proposed contract — which will likely go before the water board later this month — is for the company to perform a “desktop study” of the Trinity Aquifer in that part of the county, Spinks said. That would be the first phase of a potential three-phase project.

“It’s a long-term project,” Spinks said. “We’re just trying to come up with an alternative that might be out there five years down the road, 10 years down the road.”

Spinks said residents in eastern Brown County don’t need to worry that the water district wants to “steal their water.” 

In the desktop study, Spinks said, Collier Consulting would perform an analysis “just to get an idea of what might be out there.” Collier would begin analyze the quality and quantity of water in the Trinity. The company would pull available well logs and map out the aquifer, and determine where test wells might be drilled, Spinks said.

“There’s a lot of information they will be pulling in,” Spinks said.

Collier would determine the thickness of the aquifer and whether there is sufficient water in what Spinks called the “lower Trinity,” in the 500-to-700-foot range. Household wells are already pulling water from the upper Trinity, which is 100 to 300 feet deep, Spinks said.

Collier would determine if there is enough water in the upper aquifer for the water district to pump out without diminishing the household wells, which the district doesn’t want to do, Spinks said.

“We want to look at both of them,” Spinks said, referring to the upper and lower Trinity.

Future phases, if the water district goes forward with Collier, would include performing pump tests on existing wells and possibly drilling test wells, followed by an analysis of what would be involved in drilling a well field.

“If we could get 2 million gallons a day out of the Trinity, that would cut the demand on Lake Brownwood in half,” Spinks said.