Jessica Quintanilla, a hydrologist for the Edwards Aquifer Authority, sloshes back onto shore in her black waterproof boots from the middle of this creek just off Scenic Loop Road, south of Grey Forest. “Next, we have to set up the peristaltic pump,” she said, as she inserts the white, quarter-inch tube she dragged 15 feet back to shore from her water sensor, before flipping on a generator and starting the pump.
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