Surface Water Quality Program

The City of Hamilton’s Water Division developed a Surface Water Quality Program (SWQP) that samples surface water locations monthly, throughout the City’s waterways. The purpose of this program is to work with and alongside internal and external Stakeholders to develop and monitor baseline surface water quality conditions. 

Data on the Surface Water Sample Locations is provided through the Open Hamilton Data Portal which is a public-facing resource for up-to-date, easy and transparent data for surface water quality general knowledge, trending, review and research purposes.

Surface Water Sample Locations

The data associated with this program is uploaded to the website on a quarterly basis.  The website was last updated March 2022, providing all relevant 2021, and January and February 2022 surface water quality data, through Open Hamilton.

Select any sample location on the map to access Open Hamilton. Once selected, click the ‘Download’ icon near the top left of the Open Hamilton page to access the full dataset through the ‘Download Options’.

Surface Water Quality Parameters

The City’s Surface Water Quality Program samples for:

Field Parameters:

Chemical Parameters:

The data collected is reviewed against municipal, provincial and federal regulations and guidelines for general baseline condition purposes only.  The guiding documents provide water quality benchmarks, in order to monitor and measure water quality improvements, overtime.  

View a detailed table, outlining the water quality parameters and guiding documents (PDF, 222 KB)