Standard guidelines
Water quality guidelines and rules of thumb used to help you interpret results
Canada
Canada has three sets of federal water quality guidelines: the Canadian Council of Ministers of the Environment (CCME) Canadian Water Quality Guidelines, Health Canada's Guidelines for Canadian Recreational Water Quality, and Environment and Climate Change Canada's Federal Environmental Q...
14 standards: Ammonia mg/L (regulatory), Chloride ppm / mg/L (regulatory), Chlorine µg/L (regulatory), Chlorine µg/L (regulatory), E. coli CFU/100 mL (regulatory), Enterococci CFU/100 mL (regulatory), Enterococci CFU/100 mL (regulatory), Nitrate mg/L (regulatory), Nitrate mg/L (regulatory), Nitrite mg/L (regulatory), Oxygen mg/L (regulatory), Oxygen mg/L (regulatory), pH (regulatory), pH (regulatory)
Regions
Ontario
Includes and may override Canada standards
Ontario's Provincial Water Quality Objectives (PWQOs) are science-based guidelines used to assess and protect the quality of Ontario's surface waters. They establish benchmark concentrations for ph...
Saskatchewan
Includes and may override Canada standards
Saskatchewan's Surface Water Quality Objectives (SWQOs) are science-based guidelines that provide benchmark values for assessing and protecting surface water quality. They support the protection of...