Plymouth Township
Montgomery County, Pennsylvania

Covanta Plymouth Maintenance Update

Please be aware that Covanta Plymouth will begin second Spring maintenance outages late Sunday/early Monday.    This is our final scheduled Spring outage. The Covanta Plymouth website ( is being updated to include the following statement:


Covanta Plymouth will begin routine scheduled maintenance work on Monday, April 20.    While performing the necessary work, our top priority will continue to be the safety of our employees, any one entering the facility, and the surrounding communities. The company has implemented extensive new protocols in line with CDC guidance to ensure the health and safety of employees and contractors during the COVID-19 pandemic.


Shutdown of Unit #1 will begin late Sunday evening with a possible slight increase in sound from around 2:00 am to 3:00 am on Monday, April 20 as low pressure steam is vented from the roof vents.  There could be also be increased sounds from the maintenance activity, including safety alarms for site personnel, occurring from 7:00 am through approximately 6:00 pm on Monday, April 20 and then again from 7:00 am until noon on Tuesday, April 21.


The work will also include a brief period during which the second unit and the turbine generator are removed from service for maintenance of common systems.   Unit #2 is tentatively scheduled for shutdown late Friday evening (April 24) , with a possible slight increase in sound from around 2:00 am – 3:00 am on Saturday, April 25 as low pressure steam is vented through the roof vents.   Both units and the turbine generator are expected to be returned to service on Sunday, April 26.


The website will be updated to provide information as to when the units are being returned to service.   During the return to service period, low pressure steam is again vented from the roof vents, resulting in a short, slight increase in sound from the Facility.


As indicated in the statement, both units and the turbine generator will be down briefly during the later stages of the outage so that maintenance can be performed on some common/shared systems.   We will notify each of you prior to restart of each unit and if there are any material deviations from the above schedule.


We do not anticipate any disruption to deliveries as a result of the planned work.


Thank you to each of you for your continued work and the work of your employees throughout the ongoing situation.  We are making every effort to guard the continued safety of your employees while they are at Covanta.    I am also pleased to report that through today, Covanta Plymouth has not had any personnel test positive for COVID-19.


Please feel free to contact me if you have any questions or need further information.   Thank you.

Plymouth Township
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