PERITUS ENVIRONMENTAL CONSULTANTS - Key Persons


Erin Janzen

Job Titles:
  • Operations Manager and Senior Project Manager at Peritus Environmental
Erin serves as both Operations Manager and Senior Project Manager at Peritus Environmental. With an Honours Bachelor of Science degree in Environmental Science (Ecology Specialization) from the University of Waterloo and a graduate certificate in Environmental Management and Assessment, Erin has a wealth of knowledge. With over 15 years of experience, Erin specializes in complex risk assessments and strategic remediation. Recognized as a Qualified Person (Risk Assessment) by the Ministry of Environment, Conservation and Parks, she coordinates RA projects, assesses risks to human and ecological receptors and conducts thorough risk calculations. Erin's influence extends to vapour intrusion assessments. She is a member of the Association of Vapour Intrusion Professionals, where she contributes to refining assessment techniques and practices. Erin is a passionate world traveller, a certified scuba diving professional and is well-regarded for her welcoming and approachable demeanor.

Jonathan Sampath

Jonathan joine d the C3 Group in 2017 with C3 Env ironmental and later joined the Peritus team in 2018. He is a Designated Substance and Hazardous Material specialist. He is a Project Manager and holds a Bachelor of Environmental Studies from the University of Waterloo and a graduate certificate in Environmental Engineering Applications from Conestoga College. Jon is a Certified Technicia n through OACETT and specializes in Designated Substance Surveys and Environmental Site Assessments. Beyond his technical expertise, Jonathan is known for his charismatic and approachable nature. With a passion for cars and technology, he embodies Peritus' commitment to innovation and collaboration.

Naz Ritchie

Naz leads Peritus Environmental Consultants Inc. as its President. With over 25 years of professional environmental engineering experience across government and private sectors, her specialties encompass a wide spectrum, including environmental site assessments, environmental compliance permitting, risk assessments, designated substance surveys, solid waste manag ement, detailed design, municipal infrastructure, and asset management. Naz holds a B.A.Sc. degree in Chemical Engineering from the University of Waterloo and an M.Eng. degree in Environmental Engineering from the University of Guelph. Her role includes senior review, implementing exceptional quality assurance and control (QA/QC) to maintain the highest standards across operations and financial management. When Naz takes a break from her dedicated work, she cherishes spending quality time with her family, including her husband, two wonderful kids, and her playful dog. Her commitment to both her professional and personal life exemplifies her dedication and balanced approach to leadership.