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DC Water tunnel project to begin with completion in 2018

April 9, 2013 3:15 PM EDT George S. Hawkins, general manager of DC Water, describes a massive tunneling project about to get underway to build large underground storage facilities to hold rain run-off and sewage until a storm subsides and the sewage mixture can be pumped to a treatment plant. Rainwater can now overwhelm sewer pipes, leading to untreated sewage overflowing into the Anacostia River, the Potomac River and Rock Creek. The first four-mile tunnel will be operational in 2018. (Katherine Shaver / The Washington Post)

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