Tunnel Project

DELCORA is embarking on an innovative, new project, the DELCORA Wastewater Tunnel Project.

Right now, the wastewater our community generates is collected and sent to be treated by the Philadelphia Water Department. It costs our ratepayers substantial annual fees to have our wastewater treated by the Philadelphia Water Department (PWD). However, in 2028, we have an opportunity to withdraw from this contract with PWD and become more self-reliant. In addition to the rising costs of the PWD contract, our PWD costs will also escalate dramatically due to U.S. Environmental Protection Agency and U.S. Justice Department mandates that require DELCORA to fund part of PWD’s improvements. The last estimate for this cost is $605 million. But DELCORA has a better plan. Instead of paying PWD for improvements in the Philadelphia system, DELCORA will invest $450 million in OUR OWN system, so that we can treat our own wastewater. By taking this bold action, DELCORA will:

  • Save ratepayers money over the long-term
  • Expand a state-of-the-art water treatment facility in Chester at no additional cost to taxpayers
  • Invest in our own infrastructure and destiny
  • Create jobs in our own community

In addition to upgrading the Western Regional Treatment Plant in Chester, we will also build a new deep tunnel underground to convey our wastewater from our communities to our plant in Chester.

Construction is set to begin in 2023.

Field activities may be occurring in your area.  These activities include surface and underground investigations.  DELCORA has contracted firms to perform this work.  Notifications will be made as necessary and all efforts to minimize impact to the community will be taken.  If you have any questions about this work, please use the Contact Us box on the website or 610-876-5523 Ext. 272 and leave a message and a DELCORA representative will get back to you. 


Keep an eye out for more information about what this means for you. And, you can always check here to see updates on progress and status.


To review a copy of the final Eastern Service Area Act 537 Plan CLICK HERE.



DELCORA Wastewater Tunnel Project
Investing in Our Community. Saving Money for Taxpayers. Creating Local Jobs.


DELCORA Public Meetings:

Monday, March 21, 2022 – Public Meeting March 21, 2022 Presentation

Thursday, April 21, 2022 – Public Meeting April 21, 2022 Presentation

Monday, April 25, 2022 

Thursday, April 28, 2022

Virtual Public Meeting (Date TBD)