Guidelines for Canadian Drinking Water Quality: Guideline Technical Document – Lead

Lead is usually found in drinking water as a result of leaching from distribution and plumbing system components, particularly in aggressive (corrosive) waters. Historically, lead has been used extensively in service lines, solders and fittings, making its presence in drinking water more likely in older homes and neighbourhoods. This guideline technical document reviews and assesses all identified health risks associated with lead in drinking water.