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Water Quality

Drinking Water Source

Your drinking water is obtained from the Sardis-Vedder Aquifer, a natural underground water reservoir. Although the Sardis-Vedder Aquifer currently yields water of excellent quality, it is a highly sensitive source and vulnerable to contamination.

If an aquifer becomes polluted, it is difficult, sometimes even impossible, to restore water quality back to its original level. That's why groundwater protection measures are so important.

In 1997 the City took an important step and implemented the Groundwater Protection Plan. Part of this plan includes maintaining an extensive water sampling and monitoring program to ensure that Chilliwack’s drinking water remains a safe and healthy resource. 

Information regarding how you can help protect our aquifer can be found at http://www.chilliwack.com/groundwaterprotection

Water Quality Testing

The Drinking Water Protection Act (DWPA) prescribes regulations that limit the levels of certain contaminants in the water provided by public water systems. The contaminants that may commonly be present in drinking water sources include:

  • Microbial contaminants, such as viruses and bacteria, which may come from wildlife, agricultural livestock or septic systems.
  • Inorganic contaminants, such as salts and metals, which can occur naturally, or result from urban stormwater runoff, industrial or domestic wastewater discharges, mining or farming.
  • Pesticides and herbicides, which may come from farming, urban stormwater runoff, and home or business use.
  • Organic contaminants, including synthetic and volatile organic chemicals, which are the by-products of industrial processes and the water disinfection process, and may also come from gas stations, urban stormwater runoff, and septic systems.
  • Radioactive contaminants, which may come from natural or man-made deposits.

Drinking water quality is determined through microbiological and chemical testing for these contaminants. The DWPA establishes testing methods and monitoring requirements that water purveyors must follow. The City’s water quality sampling and testing program goes far beyond what the DWPA requires as a minimum.

 

Attachments
Description Date File Size
2019 Bacteriological Water Quality Results- Distribution System 2020-03-05 66KB
2019 Bacteriological Water Quality Results- Production Wells 2020-03-05 35KB
2019 Fraser Health Metals in Drinking Water 2020-03-09 289KB
2019 Great Blue Heron Nature Reserve Society 2020-03-09 50KB
2019 Potable Water Chemical Analysis 2020-03-05 487KB
2019 Ryder Lake Fire Hall Bacteriological Water Quality Results 2020-03-05 29KB
2019 Water Quality in Chilliwack 2020-03-05 538KB
2018 Bacteriological Water Quality Results- Distribution System 2019-01-24 123KB
2018 Bacteriological Water Quality Results- Production Wells 2019-01-24 91KB
2018 Great Blue Heron Nature Reserve Bacteriological Water Quality Results 2019-01-25 84KB
2018 Potable Water Chemical Analysis- Prod. Wells 2019-01-24 88KB
2018 Ryder Lake Fire Hall Bacteriological Water Quality Results 2019-01-25 82KB
Overview - Water Quality in Chilliwack 2019-02-15 538KB
2017 Bacteriological Water Quality Results- Distribution System 2018-02-01 59KB
2017 Bacteriological Water Quality Results- Production Wells 2018-02-01 30KB
2017 Great Blue Heron Nature Reserve Water System Annual Report 2018-02-01 25KB
2017 Potable Water Chemical Analysis- Distribution System 2018-02-01 82KB
2017 Potable Water Chemical Analysis- Prod. Wells 2018-01-23 380KB
2017 Ryder Lake Fire Hall Bacteriological Water Quality Results 2018-02-01 26KB
2016 Bacteriological Water Quality Results 2017-02-17 922KB
2016 Great Blue Heron Nature Reserve Water System Annual Report 2017-02-17 24KB
2016 Potable Water Chemical Analysis 2017-02-20 254KB
2016 Ryder Lake Fire Hall Bacteriological Water Quality Result 2017-02-17 28KB