Paul Magahay
Jeff Buisman
Ron Mak
Jamie Laws
Will Verwey
Tracy Lesperance
Wayne Van Harten
John Duffy
Adrian Maes
Dwaine Scheerer

Staff

Staff

John Duffy, P.Eng.

John is a professional engineer who specializes in the design of private on-site sewage systems for residential and other non-residential facilities. John will carry out a site investigation, consult with you on the different system alternatives, and prepare a sewage system design for permit approval.

jduffy@vanharten.com