Thursday, Aug 6, 2020 at 2:00 p.m.

Session #5: Owning the Manhole – Solutions to Inflow & Infiltration


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FREE to members.
Fee for non-members $30+HST.

Overview of OTJ Session #5:

Inflow and Infiltration in Sanitary Sewer Manholes and other collection system components has several negative impacts for municipalities. Understanding what Inflow and Infiltration is and how it impacts the sanitary sewer collection system and wastewater treatment plant is important in controlling these impacts. Understanding methods of controlling Inflow & Infiltration by employing proven technologies to stop or prevent this leakage can help.

At the completion of this one-hour OJT session, participants will be able to demonstrate the following:

  • Impacts on your collection systems, plants, and customers including costs associated with treating excess flows
  • Identify key sources of I/I: Significance of manhole frame-chimney leakage & other manhole leakage sources and how to identify
  • Employing a range of technologies to stop or prevent this leakage rehabilitate or construct new manholes
  • New and innovative control products available

Lee Haessig

Our workshop facilitator is Lee Haessig. Lee has been in the underground utility construction and trenchless industry for over 35 years and has been employed by Cretex Specialty Products for 27 years in various positions.  Lee is a hands-on person with extensive product knowledge including the manufacturing processes. Lee provides installation training, demonstrations and field support to engineers, system owners and contractors.


OMWA is pleased to offer any & all staff from our valued OMWA municipal / utility members complimentary virtual On the Job Training through our OMWA online platform.  These 1 hour sessions run every other Thursday starting at 2:00 p.m for the balance of 2020!  The fee for non-members is $30 plus HST per person per session

If you have any specific questions regarding this OJT session, please feel free to submit them when you register and we will provide them to the presenter.

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