The company has started the federal review process to build the 97-mile pipeline from McKean County to the Porterville Compressor Station in Erie County.
The 24-inch lines will be buried at least three feet underground, but four feet in agricultural areas.
The pipeline is being built to make transportation of Marcellus Shale gas from the source to the marketplace easier. A natural gas gathering system is already in place near Mount Jewett.
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