A constitutional challenge by seven municipalities to Pennsylvania's new law regulating the growth of natural gas exploration is in the hands of seven Commonwealth Court judges after a hearing Wednesday in which they repeatedly challenged lawyers from both sides in the closely watched case.
The municipalities want the law overturned; the state wants the case thrown out. The judges also could ask for more evidence before making a final ruling or could strike down only parts of the law. Lawyers said they expect a ruling within several months.
The heart of the argument is the extent of the state's power to tell municipalities where they must allow drilling-related activity, including rigs, waste pits, pipelines and the compressor and processing stations that help move gas from the underground Marcellus Shale formation in Pennsylvania to consumers across the northeastern United States.
Among the objectionable provisions cited by the towns' March 29 lawsuit are requirements that drilling, waste pits and pipelines be allowed in every zoning district, including residential districts, as long as operators observe certain buffers.
At one point, President Judge Dan Pellegrini asked a lawyer representing the Department of Environmental Protection and the Public Utility Commission what would happen if the state passes similar laws for every industry it considers an economic engine.
"If you make that argument, pretty soon zoning becomes irrational," Pellegrini said.
Judge Anne E. Covey asked a lawyer for the municipalities how he can argue that the state is infringing on the municipalities' constitutional responsibility to protect its residents when the Legislature has the power to dictate the extent of those powers.
At another point, Judge Kevin Brobson asked a lawyer for two industry groups and three private companies whether any of the state's municipalities -- there are 2,563 total -- that have zoning districts also comply with the three-month-old law.
In April, another Commonwealth Court judge ordered a temporary halt to a section of the law that deals with local zoning limitations.