1. Ready America from the US Department of Homeland Security and the Advertising Council
http://www.ready.gov
includes planning tips and suggestions of supplies for a kit.
2. Keeping Food Safe During and Emergency from the USDA
http://www.fsis.usda.gov/Fact_Sheets/keeping_food_Safe_during_an_emergency/index.asp
tells how long frozen food is safe during a power outage and how to clean flood-contaminated cans and countertops
3. This one is also good on food safety
http://www.fsis.usda.gov/oa/topics/foodsec_cons.pdf
Household chlorine bleach and medicine dropper – When diluted nine parts water to one part bleach, bleach can be used as a disinfectant. Or in an emergency, you can use it to treat water by using 16 drops of regular household liquid bleach per gallon of water. Do not use scented, color safe or bleaches with added cleaners. (note one of the sites said 8 drops, the other said 16)
Food safety in the refrigerator and freezer during a power outage (source = 2):
Always keep meat, poultry, fish, and eggs refrigerated at or below 40 °F and frozen food at or below 0 °F. This may be difficult when the power is out.
Keep the refrigerator and freezer doors closed as much as possible to maintain the cold temperature. The refrigerator will keep food safely cold for about 4 hours if it is unopened. A full freezer will hold the temperature for approximately 48 hours (24 hours if it is half full) if the door remains closed. Obtain dry or block ice to keep your refrigerator as cold as possible if the power is going to be out for a prolonged period of time. Fifty pounds of dry ice should hold an 18-cubic foot full freezer for 2 days.