Since n Validated safe operating pressure by strength-testing or locating strength-test records for more than 920 miles of gas pipeline. n Replaced more than 155 miles of gas transmission pipeline. n Automated 235 valves, enabling remote-control shutoff of gas in an emergency. n Retrofitted more than 560 miles of gas transmission lines to accommodate in-line inspection tools, or “smart pigs,” that are used to inspect the internal condition of pipelines.