Trenchless Sewer Repairs

August 19th, 2014

Pressure is on to replace aging gas pipes – Plastics News

Pressure is on to replace aging gas pipesPlastics NewsA considerable amount of degradation and some corrosion, probably from repair parts for the 1880s-era system, was visible as crews installed a new section of polyethylene pipe under the street in New York City. … “Gas distribution standards and …………

Also sad, the toll keeps climbing.

“Based on my own cases of gas explosions that I am investigating, we have at least 12 deaths half way through the year,” Mark McDonald, owner of NatGas Consulting in Boston said in a telephone interview. “The number of explosions is on the rise in certain parts of the country.”

A 2.1 million-mile system of distribution and service pipelines deliver huge volumes of natural gas to U.S. customers. PMHSA says about 97 percent of the underground network is made up of plastic and steel. The Harlem tragedy renewed public and political outcry to replace the rest — some 30,000 miles of cast and wrought iron pipes mostly in parts of the country with big populations and harsh winters.

“We’re absolutely noticing a new sense of urgency to replace this infrastructure,” said Randy Knapp, engineering director of the energy piping systems division of the Plastics Pipe Institute, which is a 140-member trade association based in Dallas.

About 83 percent of the cast iron pipes lie in 10 states under large cities like New York City, Boston, Philadelphia and Washington, D.C. These parts of the distribution system are susceptible to cracks and leaks due to freeze-thaw cycles, digging, changes in ground water levels and the iron degrading into softer elements.  Read the full story at http://www.plasticsnews.com

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ADP Toronto Plumbing Recommends Drain Inspections to All Homeowners in the Rainy Season

Established over 15 years by Andrew Olexiuk, ADP Toronto Plumbing recently issued an advisory to all homeowners to undertake comprehensive drain inspections by licensed plumbing contractors to be prepared to face the upcoming rainy season. (PRWeb August 08, 2014) Read the full story at Http://www.prweb.com/releases/ADP-Toront…

raphael_quote_simple-black_128x128 - Copy It is a danger hidden beneath the streets of New York City, unseen and rarely noticed: 6,302 miles of pipes transporting natural gas.

Leaks, like the one that is believed to have led to the explosion that killed eight people in East Harlem this month, are startlingly common, numbering in the thousands every year, federal records show.

Consolidated Edison, whose pipes supplied the two buildings leveled by the explosion, had the highest rate of leaks in the country among natural gas operators whose networks totaled at least 100 miles, according to a New York Times analysis of records collected by the federal Department of Transportation for 2012, the most recent year data was available.

The chief culprit, according to experts, is the perilous state of New York City’s underground network, one of the oldest in the country and a glaring example of America’s crumbling infrastructure……….

To replace all of the old mains in its network right now would cost as much as $10 billion, Con Edison estimates. Much of that expense would fall on the residents and businesses that use the gas for heating and cooking.

Despite the high cost and logistical hurdles, alarmed regulators at the state’s Public Service Commission have ordered the company to significantly step up its replacement schedule, from 50 miles of pipe a year to 70 by 2016, in the city and in Westchester. Even at that rate, it would still take nearly three decades for the utility to finish swapping out what regulators have identified as the most leak-prone pipes.
Read the full story at http://www.nytimes.com

 

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