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1155 Conshohocken Road
Conshohocken, PA 19428

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Covanta Plymouth

Reducing Landfill Waste

Located in Conshohocken, Pennsylvania, the Covanta Plymouth Renewable Energy Facility is an award-winning Waste-to-Energy Facility that serves communities and businesses across Eastern Pennsylvania with reliable and sustainable waste management.

In addition to keeping waste out of landfills, we’re committed to ensuring safe operations and minimizing environmental impacts. We have been consistently recognized for exceptional operations, including OSHA’s stringent Voluntary Protection Program Star certification.

Fast Stats: Annual Performance

Every year, our facility processes more than 400,000 tons of waste that would otherwise have ended up in landfills.


Less waste in landfills reduce greenhouse gas emissions by 278,000 metric tons of CO2. That’s like taking 60,000 passenger vehicles off the road for one year.


We use waste to produce 32 megawatts of electricity 24/7 - enough to power 19,000 homes for a year.


We also recover 11,400 tons of metal for recycling annually - enough to build 9,000 cars.

24/7 Hotline
(610) 569-9372 - urgent concerns only
Main number
(610) 940-6000

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Covanta Plymouth Drop-Off Recycling Hours:

Saturday: 8am-4pm (except holidays) No appointment necessary


Superior Environmental Performance

We care about our communities and operate well below emissions limits. Over 99.9 percent of what comes out of our plant’s stack is what you’d typically find in air - water vapor, nitrogen, oxygen, and carbon dioxide. The remaining constituents (as seen below) are well below federal and state standards.

(a) CO values are the maximum 4-hr block average for that day.
(b) SO2, HCL and NOx values are the daily (24-hr) block averages for that day.
(c) Opacity values are the maximum 6-minute average for that day.
(d) All emission values reported in units consistent with the permit:
     CO, SO2, HCL and NOx reported as parts per million, dry gas basis at 7% O2 (ppmdv7), Opacity as %, Removal Efficiency as %
(e) SO2 and HCL compliance based on concentration (ppm) or removal efficiency (% reduction between inlet and outlet emissions).
(f) CO emissions during periods of unit startup and shutdown are exempt as per the Title V Operating permit.

* Results are provided for informational purposes only and are subject to adjustment based on allowable quality assurance/quality control (QA/QC) review.

Read the Continuous Emission Monitoring  System (CEMS) FAQs to learn more

For more information on facility performance click here.

Process in Action

Waste-to-Energy: How Does It Work?

Waste-to-Energy takes non-hazardous waste - otherwise destined for landfill - and combusts it to generate steam for electricity generation. Ash is processed to recover metal for recycling while all gases are collected, filtered and cleaned before being released safely into the atmosphere.

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24/7 Hotline
(610) 569-9372 - urgent concerns only
Main number
(610) 940-6000

Join Our Team

Learn More