Methane is the main component of natural gas, and it’s a potent greenhouse gas that contributes to global climate change. Speaking at a meeting of the Department of Environmental Protection’s Air Quality Technical Advisory Committee, Secretary John Quigley called climate change an existential threat to the state.
“We need to take decisive action,” he said. “It is very plain that if the climate benefits of generating electricity from natural gas are to be realized, we have to minimize methane emissions.”
The DEP is creating a new general permit for unconventional (or Marcellus Shale) wellpads, which it hopes to complete this year. The agency is also drafting new regulations to curb leaks from existing sources such as compressor stations and wellpads, which Quigley expects will be finalized by the end of 2017.
The permit changes under consideration include things like a five-day timeline for companies to attempt to repair leaks after they are detected, tighter controls of volatile organic compounds, and dust reduction measures. DEP is also seeking to establish a list of best management practices for leak detection and repair along production, gathering, transmission, and distribution lines.
During the public comment period, representatives from environmental groups and concerned citizens who live near gas infrastructure praised the DEP’s efforts. Michelle Obid of Valencia, Butler County spoke on behalf of the Mars Parent Group, which has fought efforts by a gas company to place a wellpad near her children’s school.
“There is no excuse not to do everything possible to reduce the dangerous pollution from unconventional natural gas extraction,” Obid told the committee. “Please make these new methane regulations strong and meaningful.”
Aaron Jacobs-Smith is an attorney with the Clean Air Council. He also praised the methane strategy but remains concerned the new rules don’t address the older, conventional industry, nor the methane leaking from Pennsylvania’s thousands of orphaned and abandoned wells.
“It is something we’ve talked about a lot in the environmental community,” he said. “There are some studies that have looked at rates of emissions from abandoned wells and found that’s a pretty significant source of emissions. It’s definitely something we hope DEP will address.”