Houston’s Floodwaters Are Tainted, Testing Shows
Dr. Winifred Hamilton, director of the Environmental Health Service at the Baylor College of Medicine, collected water samples for testing in a flooded Houston neighborhood on Sept. 5. Credit Eric Thayer for The New York Times By SHEILA KAPLAN and JACK HEALY SEPT. 11, 2017 for The New York Times HOUSTON — Floodwaters in two