Drinking Water Quality and Enforcement

Ontario has a comprehensive set of measures and regulations to help ensure the safety of drinking water.

The following dataset contains information about the drinking water systems, laboratories and facilities the Ministry of the Environment, Conservation and Parks is responsible for monitoring to ensure compliance with Ontario's drinking water laws.

The dataset includes information about:

  • the number and type of registered systems and laboratories
  • drinking water quality test results
  • adverse water quality incidents
  • activities to support reduced lead in drinking water
  • enforcement activities related to inspections
  • orders and convictions
  • system operator certification
Ministry contact: Environment, Conservation and Parks

Additional information

Tags
Geographic coverage
Ontario
Last Validated Date
December 16, 2024
Update frequency
Yearly

Drinking Water Quality and Enforcement

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Date range: April 1, 2023 - March 31, 2024

  • ZIP
    2023-24 English

    Last Updated: December 16, 2024

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  • ZIP
    2023-24 French

    Last Updated: December 16, 2024

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Date range: April 1, 2022 - March 31, 2023

  • ZIP
    2022-23 English

    Last Updated: December 14, 2023

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  • ZIP
    2022-23 French

    Last Updated: December 14, 2023

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Date range: April 1, 2021 - March 31, 2022

  • ZIP
    2021-22 English

    Last Updated: December 19, 2022

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  • ZIP
    2021-22 French

    Last Updated: December 19, 2022

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Date range: April 1, 2020 - March 31, 2021

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    2020-21 English

    Last Updated: December 23, 2021

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  • ZIP
    2020-21 French

    Last Updated: December 23, 2021

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Date range: April 1, 2019 - March 31, 2020

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    2019-20 English

    Last Updated: December 21, 2020

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  • ZIP
    2019-20 French

    Last Updated: December 21, 2020

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Date range: April 1, 2018 - March 31, 2019

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    2018-19 English

    Last Updated: December 20, 2019

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  • ZIP
    2018-19 French

    Last Updated: December 20, 2019

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Date range: April 1, 2017 - March 31, 2018

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    2017-18 English

    Last Updated: December 20, 2019

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  • ZIP
    2017-18 French

    Last Updated: December 20, 2019

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Date range: April 1, 2016 - March 31, 2017

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    2016-17 English

    Last Updated: December 20, 2019

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  • ZIP
    2016-17 French

    Last Updated: December 20, 2019

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Date range: April 1, 2015 - March 31, 2016

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    2015-16 English

    Last Updated: December 20, 2019

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  • ZIP
    2015-16 French

    Last Updated: December 20, 2019

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Date range: April 1, 2014 - March 31, 2015

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    2014-15 English

    Last Updated: December 20, 2019

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  • ZIP
    2014-15 French

    Last Updated: December 20, 2019

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Supporting Files

  • PDF
    Metadata Record English

    Last Updated: May 10, 2023

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  • PDF
    Metadata Record French

    Last Updated: May 10, 2023

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