"State regulators have allowed the Beaver County ethylene plant to keep exceeding limits on damaging nitrogen oxides while the official permitting process has taken seven times its original timeline."
"Shell Polymers Monaca, the petrochemical plant in Beaver County, has continued to emit harmful nitrogen oxide above legally permitted levels for almost three years without any clear enforcement action from the Pennsylvania Department of Environmental Protection.
The massive facility, which launched in fall 2022, has extended its original temporary operating permit seven times. It does not yet have a long-term Title V permit, and environmental advocates say the repeated temporary extensions could shield the company from stricter regulation by the Pennsylvania Department of Environmental Protection (DEP).
“[Temporary permit] extensions are meant to hold over the facility during Title V review and processing. That did not happen here, and Shell has been given a lot of extra time to ‘work out the bugs’ of the facility,” wrote the Philadelphia-based environmental nonprofit Clean Air Council in a statement to Public Source. “Unfortunately, those ‘bugs’ continue to today.”"
Katherine Weaver reports for Pittsburgh's Public Source March 19, 2026.
