Part IV of the Clean Water Act

The Cataraqui Source Protection Plan made under the Clean Water Act, 2006 directs local efforts to keep sources of drinking water clean and plentiful. Some activities have the potential to harm the quality or quantity of drinking water, and are known as drinking water threats under the Clean Water Act. Part IV of the Clean Water Act, 2006 assists with the regulation of certain existing and future activities that are significant drinking water threats due to their potential to pollute drinking water sources.

Part IV policies in the Cataraqui Source Protection Plan apply to drinking water supplies that have been identified as more vulnerable, where significant drinking water threats can exist. This means that Part IV policies apply only to portions of certain vulnerable areas in the Cataraqui Source Protection Area (CSPA), which represents less than one per cent of the total CSPA.

Under Part IV, significant drinking water threat activities are managed under new tools which include prohibition, risk management plans, and restricted land uses. These Part IV policies fill gaps where significant drinking water threat activities cannot be addressed by existing planning or regulatory tools.

Are you affected by a Part IV policy in the Cataraqui Source Protection Plan?

For activities that are already occurring on your property, check out our Interactive Maps – Source Protection Plan to find out how you might be affected by Part IV of the Clean Water Act.

Are you thinking about beginning a new activity on your property? Check out our Interactive Maps – Restricted Land Uses to find out how your proposal might be affected by Part IV of the Clean Water Act.

Learn More

Would you like to learn more about Part IV policies in the Cataraqui Source Protection Plan?

Risk Management Services

Part IV policies in the Plan are being implemented by a regional and local risk management office.

Find out more about risk management services in your municipality »