New York will spend $240M to repair sieve-like water tunnel

11/23/2008 | NYTimes.com

New York City's Department of Environmental Protection has launched a $240 million project to repair the 45-mile tunnel that carries half of New York City's water supply from reservoirs in the Catskill Mountains. The tunnel, which is up to 1,200 feet underground, now leaks about 20 million gallons per day. The city will use six deep-sea divers to fix a valve that will allow pumps to drain the tunnel during the first phase of the project. No one has yet decided how best to keep water flowing to residents once the tunnel has been drained.

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