Reducing lead from distribution systems

Lead Policy-Ontario


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Program component has been implemented in this jurisdiction

Program component has not yet been implemented in this jurisdiction

Program component has been partially implemented in this jurisdiction

Policy Indicator



Action level exceedances must be reported to consumer

Ontario does not require public notification in the event of an action level exceedance of lead in drinking water.

Testing results must be reported to local public health agencies

In Ontario, any adverse water quality incidents, including those related to lead in drinking water, must be reported to the local medical officer of health.

Schools and Childcare facilities required to test for lead

Ontario schools and childcare facilities are required to test drinking water for lead.

Action level at or below 12 ppb

Ontario established an action level for lead of 10 ppb.

Action level at or below 5ppb in schools and daycare centers

Ontario does not have a more protective action level than its provincial action level of 10 ppb for lead in schools.

Service line material inventory required

Ontario does not require a drinking water distribution pipe material inventory, although all owners and operators of drinking water systems must test for lead.

Partial LSLR Prohibited

Ontario does not prohibit partial lead service line reporting or replacement.