The City of Thunder Bay is required to have an approved Corrosion Control Plan in accordance with Drinking Water System Regulation O.Reg.170/03. The City’s plan was approved by the Ministry of Environment and Climate Change in 2010 and amended in 2014 to include a pilot study in the Hodder Pressure Zone. The removal of lead service pipes remains a key priority in the Plan. However, the full removal of lead service pipes will take many years to accomplish. In the short term, lead levels can be reduced in private plumbing systems across the City through the addition of sodium hydroxide for pH adjustment.
City-wide pH adjustment through the addition of sodium hydroxide to the drinking water system is a safe and effective method to reduce lead levels at the tap. This method of lead reduction will commence in early 2018. For more information on the City’s Corrosion Control Plan, please visit www.thunderbay.ca/leadpipes