
Explosion rocks natural gas compressor station
SPRINGVILLE TWP. - An explosion at a natural gas compressor station in Susquehanna County on Thursday morning blew a hole in the roof of the complex holding the engines, shaking homes as far as a half-mile away and drawing emergency responders from nearby counties.
The 11 a.m. blast at the Lathrop compressor station off Route 29 sent black and gray clouds billowing from the building for several hours, but the damage was contained to the site and no one was injured, said a spokeswoman for Williams Partners LP, which owns the Lathrop station.
Automated emergency shutdown procedures stopped gas from entering or leaving the compressors, and Williams will do a full investigation of the cause and damage as soon as it is safe to go back into the building, Williams spokeswoman Helen Humphreys said.
"The emergency shutdown equipment did work properly to isolate and minimize the incident," she said. "Emergency procedures were immediately activated. That included notifying local authorities and first responders, and evacuating all personnel."
The Lathrop station pressurizes and dehydrates natural gas from Marcellus Shale wells in the county for transport through interstate pipelines, including the Tennessee and Transco, which bring the gas to market. The station was sold to Williams by Cabot Oil and Gas Corp. as part of a deal announced in 2010 that also included a second compressor station and 75 miles of the natural gas drilling company's gathering pipelines.
Cabot spokesman George Stark said the company was working at its well sites Thursday to make sure they were not sending gas to the Lathrop station. He was unable to provide an estimate of how many wells were influenced by the interruption.
"We're working on rerouting the gas to other, operating compressor stations," he said. "We've got multiple ways we flow our gas."
In a press release Thursday, Cabot referred to the incident as a "flash fire, which extinguished itself immediately" and said it was moving approximately 365 million cubic feet of gas per day through the station before it was shut down.
"The investigation has just begun as to equipment damage, if any, the length of disruption or potential impact," Cabot CEO Dan O. Dinges said in the statement.
Colleen Connolly, a spokeswoman for the Department of Environmental Protection, said regulators were alerted to the explosion at around 11:30 a.m., and inspectors spent the afternoon monitoring air quality around the site after gas escaped from the station.
"The natural gas release valve was quickly shut off," she said. "So far, the levels are coming back acceptable, and there is no danger to the public."
The DEP has permitted seven compressor engines for the site, although it was unclear Thursday how many were running at the time of the fire.
"We're going to begin a full-scale investigation into how this happened," she said, "what was going on up there and the situation with the permits - how many compressors were operating up there and how many they were allowed to operate."