Disaster
Preparedness > How to Shut-Off Utilities
There is no cost
involved in teaching everyone in your home about how &
when to turn off the gas, electricity, and water after an
earthquake. This can be as simple as clearly marking where the
shut-off valves are, and posting instructions close by. Below
are some common examples of shut-off valves. Even if you have
something different, like a propane tank, the shut-off will be
similar. If you cannot find the shut-off valves, or you do not
understand the valve system, call your local utility company
or tank provider.
Remember, consider shutting off utilities
if you can smell gas, smell or see fire, or see damage
to, from, or near the utility lines. It is wise to shut off utilities if you are going to leave the home for extended
periods of time. This is because of the probability
of aftershock.
BEFORE AN
EARTHQUAKE...
-
TEST YOUR GAS
VALVE: Locate and identify your gas meter and main
shut-off valve with those persons you believe could and
should know how to shut off your gas if necessary.
Identify the master shut-off valve.
-
Paint the
valve bright red. Note: Caution, there may be more than
one shut-off on your meter.
-
Use the
illustrations of gas meter (pg. 18) and main shut-off
valves (above) to help you identify yours.
-
Using a
12" adjustable, or other appropriate wrench, turn the
main valve 1/8 of a turn only to the right or left. (This
movement may be difficult at first)
-
CAUTION:
Be careful, do not to turn any valve MORE than 1/8 turn to
the right or left when testing. (If you do, pilot lights
will very likely go out and it will require a trained
person to relight them.)
-
After you have
moved that valve to ensure that it works, KEEP THE
WRENCH AT THE METER, use plastic "zip ties"
or straps to secure it to your meter.
-
If you use an
adjustable wrench be sure to store it pre-fit to your
valve. That way in case it rusts or corrodes it will still
fit. Heavy oil or grease applied to the moving parts of
the wrench, before you secure it, will help keep it
functional and ready for use. Do not buy any plastic or
fiberglass gas wrenches. They become brittle with time.
If the main valve
will not turn 1/8 turn, then call the Gas Company immediately
to have it fixed or replaced.
AFTER THE
EARTHQUAKE. . .
Turn your gas off
at the gas meter under the following conditions:
If you
smell, hear, or even suspect gas is escaping in your
damaged or undamaged building(s).
If your
gas water heater or any other gas appliance has been knocked
over and/or pulled free from its wall connection.
If your
building has suffered extensive damage, such as large cracks
in the walls or in the concrete slab floors, etc. AND you
suspect the gas lines may have been damaged.
If you
smell smoke and/or see or suspect fire.
NOTE:
If you have none of the above you are probably OK leaving
your utilities on.
NOTE:
Many gas companies have training programs to teach you how
to turn your gas back on. Contact your local company for information.
WARNING . .
. If you smell gas don't turn on or off any switches.
Don't use any open flame to check for leaks. Don't turn on
any battery operated flashlights, unless they are a
safety/waterproof light.
Chemical light
sticks are a safe source of light in the event of gas
leak.
WARNING . .
. It is very dangerous and therefore not recommended
that you go searching for gas leaks inside any damaged
building.
BE AWARE:
After an earthquake, aftershocks will continue to occur,
possibly causing additional damage (or even first damage)
to your building(s).
REMEMBER:
Do not turn the gas valve back on after an earthquake,
unless a qualified person has checked extensively for gas
leaks.
REMEMBER:
A qualified person (plumber, contractor, or trained
homeowner) or gas company employee will have to relight
all the pilot lights.
GAS SHUT-OFF
Locate main gas
shut-off (usually outside house) at the gas meter. The valve
is usually on a pipe coming out of the ground, going into the
gas meter. Turn the valve crosswise to the pipe (see the large
example on the "Utilities" page under "Before
the Earthquake". All the pilot lights in and around your
home (stove, furnace, clothes dryer, swimming pool/ spa
heater, water heater, etc.) will go out when you turn the
valve off. You will need to have the gas company, or another
qualified individual (plumber, contractor, or trained
homeowner), relight every pilot when turning the gas back on. Forgetting
to relight all the pilot lights could result in a
dangerous gas buildup in your home. Remember, if
you don't smell gas or have severe damage to your home you
should not have to shut the gas off. It's your decision.
Clear the area
around the main gas shut-off valve for quick and easy access
in case of emergency.
A wrench (or
specialty tool), for turning off the gas, should be attached
to a pipe next to the shut-off valve or in another easily
accessible location. You may want to paint the shut-off valve
with white or fluorescent paint so that it can be located
easily in an emergency.
If you are
concerned about your ability to turn off the main gas shut-off
valve or are unsure if it is in proper working order
(indication of rust, etc.) or do not know how to relight your
pilot lights, contact your local gas company. They can send a
service representative to your house to show you the proper
procedure and check the valve and pilot lights to be sure they
operate properly.
AUTOMATIC GAS
SHUT-OFF VALVES
Automatic gas
shut-off valves are a excellent way to insure that your gas is
shut off in the case of a major earthquake. They are
recommended by the Fire Department. In many cities in
California they are required to be installed when you sell
your home or do more than a $10,000 remodel. With an automatic
valve your gas will be off even if you aren't home at the
time. Contact your local gas company for more information and
installation.
ELECTRICAL
SHUT-OFF
First locate all
of your home's electrical panels. Note: There may be
more than one.
Your house may be
equipped with fuses or circuit breakers. If your house has
fuses, you will find a knife switch handle or pullout fuse
that should be marked "MAIN." If your house has
circuit breakers, you may need to open the metal door of the
breaker box to reveal the circuit breakers (never remove the
metal cover). The main circuit breaker should be clearly
marked showing on and off positions.
Remove all the
small fuses or turn off all the small
breakers first, then shut off the "main." If
you have any sub-panels adjacent to the main fuse or breaker
panel or in other parts of the house, in an emergency be safe
and shut them off too. Shorts can sometimes develop that cause
a circuit to bypass the breaker or fuse.
WATER SHUT-OFF
Locate the main
water service pipe into your house (probably in the front at
the basement level). You will see a gate valve on the pipe. If
you know you have leaks after an earthquake, you can shut off
all water in your house with this valve. You may wish to paint
the valve so it is easy to find in an emergency.
You can shut off
all water to your property by finding the water meter box
(usually at the street or sidewalk). Open the cover with a
long screwdriver or specialty tool. If this box is
inaccessible or you cannot find it, call your local water
department. Be sure to identify this box and the water valve
inside before the need to use them arises.
Inside the
water meter box you will see a valve that is similar to the
valve on your gas meter. Turn it just the same as your gas
valve.
Note:
All responsible family members should be shown how to turn off
utilities in case of emergency. They need to know what the
utilities look like in both on and off positions.
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Los Angeles Fire Department
200 North Main Street
Los Angeles, California 90012
(213) 485-5971
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