Water Quality Reports - Grimsby / West Lincoln

The Grimsby Water Treatment Plant provides water to Grimsby, West Lincoln and a portion of Lincoln.

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.

Parameter	Value	Sample Date	Range	Target in Range
Alkalinity	87 mg/L	May 4, 2026	30 - 500 mg/L	Safe and within our expected range
Hardness	126 mg/L	May 4, 2026	<200 mg/L	Safe and within our expected range
pH	7.41	June 1, 2026	6.5-8.5	Safe and within our expected range
E. Coli	Not detected	May 25, 2026	0 counts/100 mL	Safe and within our expected range
Total Coliforms	Not detected	May 25, 2026	0 counts/100 mL	Safe and within our expected range
Lead	Not detected	May 4, 2026	0-0.01 mg/L	Safe and within our expected range
Chloride	34.2 mg/L	May 4, 2026	0 - 250 mg/L	Safe and within our expected range
Sodium	18.4 mg/L	May 20, 2026	0-20 mg/L	Safe and within our expected range
Sulphate	33.6 mg/L	May 4, 2026	0 - 200 mg/L	Safe and within our expected range
Fluoride	0.11 mg/L	May 4, 2026	0 - 1.5 mg/L	Safe and within our expected range
Vinyl Chloride	Not detected	May 4, 2026	0-0.001 mg/L	Safe and within our expected range
Calcium	36.6 mg/L	May 4, 2026		No current standards or guidelines for this parameter
Magnesium	8.46 mg/L	May 4, 2026		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, Niagara Region and the area municipalities are responsible for providing water quality reports.

Water Quality Reports - Grimsby / West Lincoln

Current Status

Reports

2025

2024

2023

2022

Water

Water Quality Reports