The City of Sarnia may need to invest $43.7-million over the next few years to replace a large chunk of cast iron pipes carrying water within the city.
Stantec Consulting Ltd. outlined Sarnia's Water Distribution Master Plan during a delegation at Monday's council meeting.
Consultant John Tyrrell says Sarnia has over 100,000 meters of built cast iron pipes dating back to the 1970s.
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Tyrrell also brought forward the need for autoflushers on a timer system to help keep water moving in city pipes. He says some city pipes have water sitting longer than 72 hours and therefore, are exposed to chlorine for a longer period of time.
Councillors adopted Stantec's study to be used when making improvements to water distribution systems and infrastructure in the future.