WATERWISE EARTHQUAKE TIPS

Remember

Any time you learn of an earthquake in Southern California, discontinue all non-essential water use in your home until you learn the extent of the damage to our water supply. Ninety percent of San Diego County's water arrives here through pipelines that cross three major earthquake faults to the north. An earthquake occurring hundreds of miles from here could sever our imported water pipelines, leaving us dependent on the limited local supply until the damage is repaired.

Before the Quake

Every household should plan to be self-sufficient for a minimum of 72 hours after a major earthquake. Here are some steps you can take to ensure that your household has enough water on hand following an earthquake.

Preparations

Your household earthquake kit should include:

• At least three gallons of water per family member (one gallon per day). The water should be in sealed, unbreakable containers and stored in a cool, dark place. If you store the water containers in a kit such as a trash can, place them in the middle of the can so they aren't crushed by the weight of other supplies.Date the containers and replace them every six months.
• Water for pets.
• A small container of unscented household chlorine beach and/or water purification tablets for purifying water as necessary.
• A propane stove or charcoal grill to boil water. Have propane or charcoal on hand as appropriate, as well as matches.
• Remember to include drinking water in your car earthquake kit.

After the Quake

• If your household water supply is damaged, shut it off at the main valve.
• Besides bottled water, you also can drink water from the water heater, melted ice cubes or toilet tank (but only if no disinfectant cleaner is used).
• Use pool or spa water only for non-drinking purposes because of its chemical content.

Ensuring Pure Water

• You can purify water by boiling it vigorously for one to three minutes. If gas and/or electric service is unavailable, use a propane or charcoal stove. Burn the stove outdoors to avoid carbon monoxide poisoning.
• To disinfect water, first strain it through a clean cloth to remove solids.
• If the water is clear, disinfect it by using eight drops of unscented household chlorine bleach per gallon. Double the amount if the water is cloudy.
• Let the water stand for 30 minutes. If you can detect a slight chlorine odor, the water is safe to use. Otherwise, repeat the process and let the water stand for another 15 minutes.
• You can also disinfect water using water purification tablets.

Cypress Freeway Earthquake