Canadian Association for Rainwater Management


With increasing environmental awareness and concerns, addressing the issues of rainwater management has become paramount to the success and longevity of many residences and business operations. CANARM has been established to deal with the vast array of very positive actions undertaken by entrepreneurs, homeowners, and designers, and to help consolidate and focus jurisdictional governances across Canada.

CANARM is a national organization of individuals, businesses, and consultants with a keen interest in the future of rain and storm water management practices.

Rainwater Training 

CANARM exists to provide awareness, education and conduct research on Best Practices for Rainwater management.  This includes the safe collection, storage and uses of rainwater harvesting across Canada.  

CANARM is the foremost national educational and training provider for awareness and certifications in Rainwater Harvesting and Management in Canada. Information and training is offered to a wide range of participants, and national certifications based on CSA regulations and codes for design and installation have been established. Offered by qualified professionals in regional venues across the country, CANARM training addresses the global issues as well as regional and local aspects of Rainwater catchment, storage, treatment, and use.

There is an educational package suitable for everyone, including:

  • homeowners – property managers – schools
  • community groups
  • trade organizations
  • educators
  • architects / landscape architects
  • engineers
  • urban planners
  • regulators
  • municipalities
  • installers/practitioners
  • wholesalers

Formats for education and training include lectures, seminars, workshops, and hands-on applied skills development for certification. With an infinite range of opportunities in sharing and leading the development of quality rainwater management, education and training sessions are tailored to the audience, venue, and region, and organized within CANARM’s territorial jurisdictions.

Board of Directors

Benjamin Morrison, President

Benjamin is a Partner at Cleanflo Water Technologies which focuses on Rainwater Harvesting Design and Supply. Located in Regina, Saskatchewan with projects across Canada.  He graduated from Saskatchewan Institute of Applied  Science  and Technology (SIAST) as a Water Resources Engineering Technologist.

Dean Barrett, Director

Dean Barrett is a partner In BARR Plastics Inc. a family run business since 1968. Dean joined the business in 1982. The company started supplying plastic tanks to the BC market in 1985. Plastic tanks have become the most commonly used tank for Rainwater Harvesting.

Jamie Wallace, Director

Landscape designer, Project Manager, Site Supervisor, Permaculture Designer, Landscape Contractor, Rainwater harvesting designer and installer

Anthony Oosterveld, Director

Anthony Oosterveld is currently the Business Development Manager, Regulators markets for VIQUA a Trojan Technologies Company. Anthony’s responsibilities are focused to working closely with engineering firms, provincial, state and federal regulators in the adoption of Ultraviolet Light as a primary means of public water disinfection compliance. He brings over 13 years of experience in small water treatments systems design for residential, commercial and reuse. He studied business at Conestoga College and Harvard Business School and was previously a Certified Water Specialist with the Water Quality Association.

Whalen Bishop, Director

Whalen Bishop has been with University Sprinklers since 2008. Whalen is an honours graduate from Thompson Rivers University and is a certified Residential Turf Irrigation Designer through the IABC, Cross Connection Control Specialist, Low Voltage Technician and is a Professional Accredited Rainwater Harvester through ARCSA.


CANARM’s structure is setup to coordinate a national association while embracing regional differences in construction practices, building, plumbing and health codes, etc. Our Board of Directors coordinates CANARM’s efforts nationally, while our regional governance structure is split into five jurisdictions with Governors as listed below. Each regional Governor is responsible for coordinating efforts within their region and engaging local regulatory bodies. The five regions and their Governor’s are as follows:

British Columbia, Yukon and the Northwest Territories
Governor: Ken Nentwig

Ken is a retired landscape architect and educator, involved in RWH practitioner training with CANARM and with the American Rainwater Catchment Systems Association (ARCSA). He has presented RWH to about 2,000 participants in seminars and classes across Canada and in the US. Currently he facilitates an online Rainwater Harvesting and Management course through Gaia College, and consults on rainwater system feasibility for a wide range of project types.  EMAIL: ken@canarm.orgPH: 250 999 2472

Alberta, Saskatchewan, Manitoba   
Governor: Rene Michalak 

Ontario and Nunavut
Governor: Jeff Thompson 

Governor: Alain Trahan

Nova Scotia, New Brunswick, Newfoundland and Labrador, and Prince Edward Island

Governor: Bren VanderZwaag

Canadian Association for Rainwater Management

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