Health Canada’s Guidelines for Canadian Drinking Water Quality set national benchmarks for parameters including turbidity, chlorine residual, and pH, with provincial regulations establishing the enforceable limits and monitoring requirements for each. In practice, most municipal water systems are required to continuously monitor turbidity at the filter outlet and chlorine residual in the distribution system, with pH monitoring at the treatment plant. The instruments used for these measurements must be calibrated on a documented schedule and the records retained for regulatory inspection.