5,900 natural gas leaks discovered under Washington, D.C.

5,900 natural gas leaks discovered under Washington, D.C.
Durham NC (SPX) Jan 17, 2014 - than 5,893 leaks from aging natural gas pipelines have been found under the streets of Washington, D.C. by a research team from Duke University and Boston University. A dozen of the leaks could have posed explosion risks, the researchers said. Some manholes had methane concentrations as high as 500,000 parts per million of natural gas - about 10 times greater than the threshold at which explosio ... morehttp://www.energy-daily.com/reports/5900_natural_gas_leaks_discovered_under_Washington_DC_999.html