Renovating two solids treatment tanks at the Mason Farm Wastewater Treatment Plant

March 26, 2017

Current status:

  • Our contractor has completed work inside the second tank.  The project should be complete by the end of March 2017.

Purpose: to maintain the structural integrity of the tanks and to help eliminate off-site odor releases due to leaks in the tank structures. 


How the work may affect you

  • There will be odor releases at times during the project.
  • There will be additional truck traffic from and to our plant when a tank is emptied for renovation.
  • The work will involve noise during the contractor’s normal work hours (7 AM to 7 PM on weekdays).
  • You may see cranes and other equipment at our plant.

Comments or questions? to receive updates from OWASA

Please contact Vishnu Gangadharan, P.E., Engineering Manager, at 919-537-4248 or if you would like to receive updates about our project, and whenever you have any questions or comments. We prefer to use e-mail to save time, paper and postage.

If we do not already have your e-mail address, you can also sign-up for e-mail updates by going to

If you have renters at your property/ies near our project, please ask them to contact us if they have questions or comments and/or wish to receive future notices about our work.

Project update on Dec. 16, 2015

Project update on Aug. 10, 2016