Annual Drinking Water Quality Reports

Ontario Drinking Water System Regulation (O.Reg.170/03) under the Safe Drinking Water Act 2002, requires that the owner of a municipal drinking water system prepare an Annual Report on the operation of the system and the quality of its water by February 28 of each year. The Annual Reports cover the period from January 1 to December 31 for the preceding year.

The format for the Annual Report has been recommended by the MECP and includes the following information for the respective reporting period:

  • A brief description of the water system
  • A summary of chemicals used for treatment
  • A summary of improvements made to the water system
  • A summary of water quality testing results for microbiological, inorganic chemical and organic chemical parameters
  • A summary of adverse water quality reports
  • A description of how the Annual Report has been distributed and where the Annual Report and Summary Report, required under O.Reg.170/03 Section 11 and Schedule 22, will be located in order to be accessible to the public.

The Town of East Gwillimbury owns and operates three large municipal residential drinking-water distribution systems, namely; "Holland Landing-Queensville-Sharon", "Mount Albert" and "Yonge/Green Lane". The Town of East Gwillimbury has prepared a 2025 Summary Report and Annual Water Quality Reports in pdf format as follows:

Holland Landing, Queensville and Sharon

Mount Albert

Yonge/Green Lane:

*Have any questions relating to the Town's drinking water systems and their water quality sampling program, please email the Water Department.

*If you require a document in an accessible format, please contact Customer Service or the Water Department.

Last Updated  

July 2026