In all, 520 miles of cast-iron pipe
is being replaced, the majority of it in the District of Columbia.
Due to its nature, cast-iron pipe
is not a good fit for statistical models used in predicting vulnerability and risk.
"Financial incentives and targeted programs among companies, public utility commissions, and scientists to reduce leaks and replace old cast-iron pipes
will improve consumer safety and air quality, as well as save money and lower greenhouse gas emissions," the researchers conclude.
The Pennsylvania Public Utility Commission cited UGI for failing to repair a leak discovered in 1979 within "a reasonable amount of time." UGI was fined the maximum $500,000 and ordered to remove all of its cast-iron pipe
within 14 years and all of its bare steel pipelines within 30 years of the February 2013 ruling.
"The cast-iron pipes
we will be replacing have served the community well for decades, but they have now reached the end of their useful life.
Engineers from Severn Trent have set up a stand at the town's library to explain which roads will be closed during works to replace 3,600 metres of cast-iron pipes
Obsolete cast-iron pipes
like the one that broke Jan.