Food in the freezer can be saved by keeping the door shut. As long as frozen food remains frozen or below 4oC. It can be cooked once the power comes back on.
As for water, wells that rely on treatment systems may not be working, so users should find an alternate source of water or boil water before use (boil for one minute then cool).
When the power’s back on, make sure the treatment system is working properly. Flush the lines and take a sample. When the results confirm it is working you can resume drinking water.
Drinking Water Precautions – Leeds, Grenville and Lanark District Health Unit
You can also visit the health unit’s emergency preparedness page for more information on dealing with power outages at the link below.
Emergency Preparedness – Leeds, Grenville and Lanark District Health Unit