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Print | YORK REGION>Services>Water>Water Quality |
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Water Quality | |||||||||
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Water & Wastewater | |||||||||
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Our water is safe for drinking. All water distributed in a municipal system must meet high levels of quality legislated by the Provincial Government - the Ministry of Environment. The Ontario Drinking Water Standards stipulate over 100 criteria with safe consumption limits established on the basis of epidemiological and toxicological research. The criteria are revised periodically to reflect any new findings or concerns. Drinking Water Quality Management Standard (DWQMS)
In 2007, the Ministry of the Environment finalized its 'made-in-Ontario' Drinking Water Quality Management System. In accordance with Ontario Regulation 188/07, all drinking water systems in Ontario are required to submit an Operational Plan and become registered to the DWQMS starting January 1, 2009. York Region submitted the Operational Plan for our 10 drinking water systems in late 2008. Please click here for more information on the Operational Plan.
Drinking Water Systems Regulation
In 2003, the Drinking Water Systems Regulation (O.Reg.170/03) replaced the Drinking Water Protection Regulation for Larger Waterworks (O.Reg.459/00) and for Smaller Waterworks (0.Reg.505/01). Click here for more details including information about Ontario's Drinking Water Standards.
Annual Water Quality Reports
Annual Water Quality Reports are prepared each year and are available for all municipally serviced communities in York Region. Click here to get more details about your drinking water quality results.
Protecting your water quality
York Region maintains a rigourous water quality sampling program to ensure your water is safe to drink. Find out more how we safegaurd your water supply.
Private well water quality
For questions related to private well water, visit our Health Services Department.
Water hardness in treated water
Much of York Region's municipal water supply is considered 'hard'. Click here to find out water hardness levels in municipally treated water for your community.
Fluoride levels in treated water
Fluoride is helpful in the prevention of tooth decay. It exists naturally in groundwater sources or can be added in the water treatment process. Find out more about fluoride levels in municipally treated water.
Sodium levels in treated water
Sodium in drinking water is not a health concern for most people, but it may be an issue for persons with specific underlying health concerns or those on a sodium-restricted diet. Find out more about sodium levels in municipally treated water. Chloraminated water supply in York Region
Chloramination is the use of both chlorine and small amounts of ammonia to disinfect the water. This treatment process is used to supply water in: Aurora, Holland Landing, Markham, Newmarket, Queensville, Richmond Hill, Sharon and Vaughan. Click here for more information about the chloraminated water supply in York Region.
Water quality concerns
Find out more about the two most common water quality complaints in York Region: yellow coloured water and odour issues.
Beach water quality (seasonal)
York Region Health Services monitors water quality at York Region public bathing beaches during the summer months to ensure that the water quality is safe for swimming. The York Region Beach Sampling Program begins the second week of June every year.
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