Document Library
American Water Works Association Water Quality Conference 2019
Sodium Silicate Presentations November 2019 prove Sodium Silicate prevents corrosion of Drinking Water Pipes, lowers LEAD contamination dramatically.
University of Washington - Effect of Sodium Silicate Addition on Lead Release from Lead Service Lines
Sodium Silicate as a pipe corrosion preventor in Municipal Drinking Water pipe supplies, is a superior
method, with harmful LEAD levels significantly reduced.
See attached document for the complete report in a simple graphic format.
Independent Engineering study of LEaC Shield 2013/City of Toronto approval 2011
City of Toronto confirming compliance with applicable regulations and standards for drinking water safety by the LEaC Shield Corrosion Inhibitor Pinhole Leak Prevention Program.
Reference Letters
A collection of reference letters from satisfied property managers using the LEaC Shield Protection System.
United Nations and World Health Organization Approval for Use in Food Transport 2000
European Chemical Industry Council document on silicate safety and approved uses.
HEALTH Canada Silicate approval 2020
This List of Permitted Food Additives with Other Accepted Uses sets out authorized miscellaneous food additives.
Canada Guidance on Corrosion Control in Drinking Water
Guidance on controlling corrosion in drinking water distribution systems from the Federal-Provincial-Territorial (FPT) Committee on Drinking Water.
York Region Public Health and Production Approvals for Drinking Water
Confirmation that sodium silicate is approved to be added to drinking water supplies and does not cause any health effects.
ONT Ministry of Environment Approval for Drinking Water 2018
Confirmation from the Ontario Ministry of the Environment and Climate Change that N Sodium Silicate can be used in water treatment.
Ministry of Environment Approval for Drinking Water 1993
Ministry of Environment Approval of the use of liquid sodium silicate as a treatment additive to potable water.
Use of Sodium Silicate in Drinking Water by many ONT Cities for Decades
List of municipalities using food grade Silicates in all Drinking Water supplied to their customers.
Naturally Occurring Silica in Longview Drinking Water, HEALTH SCIENCE Decision - Beneficial
Fact Sheet prepared by the City of Longview on the benefits and safety of the naturally occurring silica in their drinking water.
Europe Silicate Safety - HERA - Cleaning, Food, Drinking Water Safe. 2005
Study on the safety and uses of Silicate prepared by the Human & Environmental Risk Assessment on ingredients of European household cleaning products.
Science Behind Silicates Being Very Safe - Feb 2005
A review in the Journal of Endochrinology about silicon's potential role in the prevention and treatment of Osteoporosis.
Sodium Silicate Safely used in Drinking Water Since 1922
A review of Thirty years’ experience with silicate as a corrosion inhibitor in water systems of large buildings; Sodium Silicate in Drinking Water has proven safe and effective for 100 years.
Get in Touch
To get more information about LEaC Shield or to request a
About LEaC Shield Ltd.
Founded in 1992, LEaC Shield is a family-owned engineering consultancy that provides water system consulting, engineering and master plumbing services throughout Southwestern Ontario, Canada.
We pride ourselves on our use of Canadian-made products, and we're excited to offer superior-quality water monitoring and control equipment through our sister company WATERSHIELD.
LEaC Shield Ltd.
123 Consortium Court
London, Ontario
N6E 2S8
1-855-946-1783