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Water Quality Reports - Decew

The Decew Falls Water Treatment Plant provides water to St. Catharines and portion of Thorold, Lincoln and Niagara-on-the-Lake.

Current Status

The values below represent the water quality leaving the water treatment plant on the date indicated.

These values are updated on a monthly basis and measured by a laboratory that is certified by the Ministry of the Environment and Climate Change.

ParameterValueSample DateRangeTarget in Range
Alkalinity92 mg/LApril 14, 202130-500 mg/LTarget in range Safe and within our expected range
Hardness126 mg/LApril 14, 202130-250 mg/LTarget in range Safe and within our expected range
pH7.83 April 14, 20216.5-8.5Target in range Safe and within our expected range
E. ColiNot detectedApril 12, 20210 counts/100 mLTarget in range Safe and within our expected range
Total ColiformsNot detectedApril 12, 20210 counts/100 mLTarget in range Safe and within our expected range
LeadNot detectedFeb. 2, 20210-0.1 mg/LTarget in range Safe and within our expected range
Chloride20.6 mg/LApril 14, 202130-250 mg/LTarget in range Safe and within our expected range
Sodium12.7 mg/LApril 14, 20210-20 mg/LTarget in range Safe and within our expected range
Sulphate33.6 mg/LApril 14, 20210-200 mg/LTarget in range Safe and within our expected range
FluorideNot detectedApril 14, 20210-1.5 mg/LTarget in range Safe and within our expected range
Vinyl ChlorideNot detectedFeb. 2, 20210-0.001 mg/LTarget in range Safe and within our expected range
Calcium35.9 mg/LApril 14, 2021 No current standards or guidelines for this parameter
Magnesium8.85 mg/LApril 14, 2021 No current standards or guidelines for this parameter

For more information about the quality of water in your local distribution system, contact your area municipality.

Reports

Under Ontario Regulation 170/03 both the Regional Municipality of Niagara and the area municipalities have the responsibility to provide Water Quality Quarterly Reports.

2020

2019

2018

Contact

Erin Shisler
Water Process Specialist
905-980-6000 ext. 3298
Email Erin Shisler

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