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PA DEP Issues Permit for Expansion of MarkWest Harmon Creek Plant - Marcellus Drilling News
The Pennsylvania Department of Environmental Protection issued an air quality permit on May 18, 2026, to MarkWest Liberty Midstream, authorizing the expansion of its Harmon Creek Natural Gas Processing Plant in Washington County. The MarkWest name is still used, although the company is now MPLX. The DEP permit approval allows the addition of a third...
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PA DEP Issues Permit for Expansion of MarkWest Harmon Creek Plant - Marcellus Drilling News
The Pennsylvania Department of Environmental Protection issued an air quality permit on May 18, 2026, to MarkWest Liberty Midstream, authorizing the expansion of its Harmon Creek Natural Gas Processing Plant in Washington County. The MarkWest name is still used, although the company is now MPLX. The DEP permit approval allows the addition of a third...
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