Water Quality Reports - Welland

The Welland Water Treatment Plant provides water to Welland and a portion of Thorold and Pelham.

Current Status

The values below represent the water quality leaving the water treatment plant on the date indicated with the exception of pH which is for distribution water.

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

ParameterValueSample DateRangeTarget in Range
Alkalinity86 mg/LMarch 19, 202530 - 500 mg/LTarget in range Safe and within our expected range
Hardness117 mg/LMarch 19, 2025100 - 150 mg/LTarget in range Safe and within our expected range
pH7.6 April 4, 20256.5-8.5Target in range Safe and within our expected range
E. ColiNot detectedMarch 24, 20250 counts/100 mLTarget in range Safe and within our expected range
Total ColiformsNot detectedMarch 24, 20250 counts/100 mLTarget in range Safe and within our expected range
LeadNot detectedFeb. 24, 20250 - 0.01 mg/LTarget in range Safe and within our expected range
Chloride32.7 mg/LMarch 19, 20250 - 250 mg/LTarget in range Safe and within our expected range
Sodium18.3 mg/LFeb. 27, 20250-20 mg/LTarget in range Safe and within our expected range
Sulphate36.4 mg/LMarch 19, 20250 - 200 mg/LTarget in range Safe and within our expected range
FluorideNot detectedMarch 19, 20250 - 1.5 mg/LTarget in range Safe and within our expected range
Vinyl ChlorideNot detectedFeb. 24, 20250 - 0.001 mg/LTarget in range Safe and within our expected range
Calcium31.9 mg/LMarch 19, 2025 No current standards or guidelines for this parameter
Magnesium9.05 mg/LMarch 19, 2025 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.

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

Reports

2024

2023

2022

2021

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