David R. Baker, SFGATE
California utility regulators on Thursday approved new rules designed to prevent, find and fix leaks at natural gas facilities ranging from storage sites to pipelines.
California regulators have approved rules designed to cut natural gas leaks from pipelines and pumping stations by 40 percent, as part of the state’s far-ranging fight against global warming.
The California Public Utilities Commission voted unanimously Thursday to adopt the rules, which will require utility companies to conduct frequent inspections and fix even minor leaks within three years.
Methane, the main component of natural gas, is a potent greenhouse gas, 25 times more powerful than carbon dioxide at trapping atmospheric heat.
“This certainly is an approach other states can take, and we think the data will show that it’s the right thing to do,” said Tim O’Connor, director of California oil and gas policy for the Environmental Defense Fund, which has made cutting gas leaks nationwide one of its top priorities. The group called the package of natural gas regulations the nation’s toughest.
Once fully implemented, the regulations approved Thursday could save $8 million worth of gas each year, enough to supply 72,000 homes, O’Connor said. Although the Trump Administration is delaying the implementation of Obama-era federal rules to rein in methane emissions, other states including New York and Massachusetts are moving forward with their own regulations, O’Connor said.