Testing New York City's Waters After Hurricane Sandy

During Hurricane Sandy, the seas rose a record 14-feet in lower Manhattan and flooded city streets, subways, tunnels, and sewage treatment plants. As plants lost power, they were forced to divert untreated wastewater into the Hudson River. Four days after Sandy, the environmental group Riverkeeper attempted to measure the storm's effect on water quality. Though by then, if the river had been widely contaminated, any evidence had washed out to sea. A week later, a more typical nor'easter hit the area. Andrew Juhl, a microbiologist at Columbia University's Lamont-Doherty Earth Observatory, joined Riverkeeper the next morning to test the waters again.