Federal investigators were dispatched to three towns just outside Boston after dozens of explosions and fires along NiSource Inc.’s natural gas network left at least one person dead and 13 injured and displaced over 8,000 customers.
Massachusetts State Police reported 39 incidents on the network in Lawrence, Andover and North Andover on Thursday. The blasts appear to be pipeline explosions, the National Transportation Safety Board said Friday in a briefing. Shares of NiSource plunged as much as 13 percent in pre-market trading Friday.
NTSB Chairman Robert Sumwalt told reporters in Washington the agency sent a “go-team” of investigators that will arrive in the affected area at about noon local time to begin what he said is likely to be a long inquiry.
“Certainly things we will be looking at will be the design of the pipeline system, any maintenance or upgrades that may have been done or in the process of being done on the pipeline, the integrity management system of the pipeline operator,” he said. “This will be a multi-disciplinary investigation, we’ll be looking at a number of things.”
Leonel Rondon, an 18-year-old Lawrence resident, died after a house explosion sent a chimney crashing into his car, the Associated Press reported. Thirteen people were received at Lawrence General Hospital for injuries related to the explosions from smoke inhalation to blast trauma, according to the hospital’s Facebook page. One critical patient was transported to a Boston trauma center.
Andover Police Department Lieutenant Eddie Guy told NBC’s Today television show Friday morning that officials believe the blasts were caused by over-pressurized gas lines. Columbia Gas of Massachusetts, the NiSource unit responsible for the local network, said in a statement that its crews would need to visit each of the 8,600 affected customers to shut off each gas meter and carry out a safety inspection. NiSource shares were down 7.4 percent at $26 as of 8:29 p.m. in New York.
National Grid Plc, which operates the electric utility in the area, was asked to shut power to all of Lawrence and North Andover and pockets of Andover, spokeswoman Christine Milligan said. The supply cuts were affecting about 18,000 customers as of 7 a.m., National Grid said on its website.
In April, Columbia Gas filed a petition with the state’s Department of Public Utilities to increase annual revenues by $24.1 million in part to help the company replace aging infrastructure. All three towns were listed as areas where neighborhood lines would be replaced, the utility said on its website Thursday.
“Replacing leak-prone infrastructure is a leading priority,” the utility said in April. “However, it will take a number of years to eliminate the aging pipe from the gas distribution system.”
The incident, in an area that’s home to the famous Phillips Academy Andover whose alumni include George W. Bush and Humphrey Bogart, took place just as Hurricane Florence slammed the coast of the Carolinas farther south on the East Coast, threatening to leave 3 million homes and businesses without power.
The explosions – just days after the eight-year anniversary of a deadly blast on a PG&E Corp. gas transmission line in San Bruno, California – may intensify the growing opposition across New England to using gas to heat homes and produce electricity. The San Bruno tragedy killed eight people and triggered more than $1 billion in fines and penalties.
Some residents in Andover have been told they can return to their homes, city officials said early Friday. Lawrence Mayor Dan Rivera had asked impacted residents to evacuate. Two schools in Lawrence will be used as shelters for evacuees.
The Massachusetts Emergency Management Agency said the state’s mutual aid fire mobilization plan has been activated and that it was sending staff to the three towns, as well as four structural task forces. The U.S. Department of Transportation’s Pipeline and Hazardous Materials Safety Administration is also sending a team to support the emergency response efforts, spokesman Bobby Fraser said in an email.
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