In January, part of a decades-old sewer line in Maryland collapsed by the Potomac River. Over the following days, the broken pipe dumped more than 200 million gallons of raw sewage into the Potomac near Washington, D.C.
Since then, the utility that manages the line, DC Water, has been setting up a system of pumps and a steel bulkhead to divert wastewater around the broken section of pipe so crews can begin repairs. The area's drinking water hasn't been contaminated, but scientists and environmental advocates say the damage could still be severe in a watershed that stretches to the Chesapeake Bay.
"There's a ton of nasty stuff in raw sewage. It's not just waste and bacteria, but you have all sorts of pharmaceuticals that end up in the pipe system. You have different chemicals that people pour down the sink or into drains," says Gary Belan, senior director of the clean water program at American Rivers, an advocacy group. "So a lot of that stuff can sink to the bottom of the river, have impacts on fish reproduction, bird reproduction, killing a lot of the insects, contaminating the soil."
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