"Aging Pipes, Deadly Hazards"

"Despite a long history of accidents, and a stack of warnings from safety investigators, there are still thousands of miles of antiquated, leak-prone, cast-iron pipelines running under the streets of Pennsylvania cities and towns. Some are more than 100 years old."

Joseph Tanfani and Craig R. McCoy report the last of a four-part "Battle Lines" series for the Philadelphia Inquirer's Deep Drill reports December 18, 2011.

SEE ALSO:

"City Inaugurates Costly Plan to Replace Aged Water Mains" (Chicago News Cooperative)

"Safety Cases a Secret for Utilities, PUC" (Philadephia Inquirer)

Part 1: "Powerful Pipes, Weak Oversight"

Part 2: "Similar Pipes, Different Rules"

Part 3: "'Us vs. Them' in Pa. Gaslands"