Many drinking water systems in Perth County have elevated levels of naturally occurring sodium. Sodium samples are required by Ontario Drinking Water Systems Regulation 170/03 to be sampled once every 60 months. To help you advise your patients about sodium levels in drinking water please see the charts below which shows areas in Perth County in the last five years that have had sodium levels that exceed 20 milligrams/Litres but are below the aesthetic objective of 200 milligrams/Litres.

Municipal Systems

2018Stratford Well SupplyDufferin = 22.4
Chestnut = 24.4
Lorne = 22.6
2018Municipality of North Perth22.8
2018Atwood Well Supply22.6
2017St. Pauls Water System24.7
2015Milverton Well Supply27
2015Town of St. Marys Well SupplyWell 1 = 33.6
Well 2 = 61.1
Well 3 = 50.6
2013City of Stratford Well SupplyChestnut = 24.2
Lorne = 24.2
Mornington = 21.6
2013Mitchell Drinking Water SystemWell 1, 2, 3 = 39
Well 4 = 51


2018Mapleview Mennonite School142
2017St. Patrick's School - Kinkora120
2017St. Patrick's School - Dublin180
2015Sunrise Christian School82.5
2014Wallace Public School110
2014Downie Central Public School94
2014Sprucedale Public School110
2014Elma Township Public School200
2014Mornington Central Public School110
2014Central Perth Public School97
2014South Perth Centennial School110
2014North Easthope Public School96


2018Fernal Apartments110
2018Little Lake Residential207
2017Hillside Manor38.6
2017Blackcreek Estates28.5
2017Hidden Acres Mennonite Camp22.6
2017Country Meadows37.9
2015Camp Bimini168
2014Crystal Lake Mobile Home ParkWell 1 = 27
Well 2 = 25.4

Updated September 25th, 2018