From Texas Public Radio:
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, in San Antonio.
“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.
Quintanilla and a Southwest Research Institute scientist start pumping water into plastic containers of various shapes and sizes. They are looking for the last thing most of us want to think about in our drinking water: feces.
With her help, two projects from the University of Texas at San Antonio and SwRI are trying to find out where the pollutants are coming and how they’re getting into the water