Ontario Operator-in-Training (OIT) Practice Exam

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Which regulation governs the standards for drinking water quality in Ontario?

  1. O. REG. 129/04

  2. O. REG. 170/03

  3. O. REG. 169/03

  4. O. REG. 140/04

The correct answer is: O. REG. 170/03

The regulation that governs the standards for drinking water quality in Ontario is O. REG. 170/03. This regulation establishes the requirements to ensure that drinking water is safe, including the standards for water quality, testing protocols, and the responsibilities of municipal water systems. It encompasses various parameters that must be monitored to protect public health, such as microbiological, chemical, and radiological aspects of water quality. By adhering to the standards set out in this regulation, operators can better ensure that the water supplied to consumers meets the safety and quality standards necessary for public use. Additionally, O. REG. 170/03 outlines reporting requirements and operational practices that operators must follow, reinforcing the need for consistency and accountability in drinking water management.