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Covanta Plymouth

Maintenance on Steam Valves

November 26, 2019 - Covanta Plymouth will be performing maintenance on the facility’s safety steam valves today. During this work, steam may be released for short intervals that will result in temporary increases in noise levels. This work does not impact emissions from the facility and all emissions control equipment will remain fully operational. 

Should any neighbors have concerns or questions, please call the 24-hour hotline at 610-569-9372.


Annual Stack Testing

November 20, 2019 - The facility is currently undergoing required annual stack testing. During the testing, the plant operates as normal and an independent testing company validates the accuracy of instrumentation and verifies emissions performance. No issues or unusual events have occurred during the testing, which is expected to be completed next week.

Should any neighbors have concerns or questions, please call the 24-hour hotline at 610-569-9372.

Plymouth Facility Photo

Covanta Plymouth

Covanta Plymouth Renewable Energy, LLC, began commercial operation in February 1992 and serves 8 counties in Eastern Pennsylvania. The 20.9-acre facility operates as Covanta Plymouth Renewable Energy, LLC, and processes approximately 1,216 tons per day of municipal solid waste – generating greater than 32 megawatts of renewable energy. The facility is equipped with a water-cooled turbine-generator condenser that converts steam to water for continuous cycling of water through the boilers.

Commercial Operation:

February 1992

Waste Processing Capacity:

1,216 tons per day

Air Pollution Control Equipment:

Flue gas scrubbers injecting lime, fabric filter baghouses, nitrogen oxide control, mercury control and continuous emissions monitoring system

Energy-from-Waste System:

Two 608 ton-per-day Steinmuller Gmbh reciprocating grate and water wall furnaces

Energy Generation:

Up to 32 megawatts of electricity

Awards and Recognition:

Designated a Voluntary Protection Program Star facility by the U.S. Occupational Safety and Health Administration (OSHA) for workplace safety

Covanta Plymouth

1155 Conshohocken Road

Conshohocken, PA  19428



Herman Love


Visit Our Facility!

If you would like an escorted tour of our facility, please reach out. We welcome the opportunity to show you how our resource recovery process works.

Click here for tour checklist (PDF)

All tours must be scheduled in advance. Please contact 610-940-6000 ext. 120.

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