17-year old Maria Elena Grimmett won the prestigious Siemens Competition in Math and Science for developing a new water purification method that can remove pharmaceutical pollutants from water. Maria Elena Grimmett was 11 when she noticed that her family’s well water was tinged brown, and she wondered why. Her curiosity sparked a six-year investigation into a new way to solve a common water pollution problem, and on Tuesday, that inquiry — conducted largely at Grimmett’s dining room table — won her a prestigious prize for young researchers and a $100,000 college scholarship. “Oh my goodness. I can’t tell you how shocked I was,” Grimmett, now 17, said outside an auditorium at George Washington University, which hosted the final round of the 2015 Siemens Competition in Math, Science and Technology. Grimmett’s initial questions about the color of her family’s water led her to learn about pharmaceutical pollution in the Florida Everglades. She was disgusted, and she wanted to help solve the problem. “I couldn’t imagine how people were letting this happen,” she said. So she settled on figuring out a new way to remove sulfamethazine, a common veterinary antibiotic used in pigs and cows, from water. Sulfamethazine contamination is common in rural areas, she said, and is helping to create antibiotic-resistant bacteria […]