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Document Library

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.

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Reference Letters

A collection of reference letters from satisfied property managers using the LEaC Shield Protection System.

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United Nations and World Health Organization Approval for Use in Food Transport 2000

European Chemical Industry Council document on silicate safety and approved uses.

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HEALTH Canada Silicate approval 2020

This List of Permitted Food Additives with Other Accepted Uses sets out authorized miscellaneous food additives.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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Get in Touch

To get more information about LEaC Shield or to request a free assessment of your building’s water distribution system, send us a message…

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 Water Shield.

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LEaC Shield Ltd.
123 Consortium Court
London, Ontario
N6E 2S8

1-855-946-1783


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