Emergency Operation and Sanitation Procedures
For Public Water Systems
The following recommendations are submitted as guidelines for all classes of public
water systems. These recommendations can be followed in general for problems in
the wastewater plant, lift stations, etc. These recommendations should compliment
the emergency preparedness plan of each public water system. If these recommendations
and the water system emergency plan are followed, down time following a storm,
flood or other emergency, should be kept to a minimum.
HURRICANES
- Prepare/up-grade/review emergency operations plan for your system.
- Prepare/up-grade/review map(s) of water system which include and pinpoint
valves and hydrants. Identify best access roads.
- Check condition of equipment, including portable and auxiliary equipment.
- Inventory supplies (chlorine, fuel supply, etc.)
- Fill all water tanks.
- Make provisions (rental) for extra auxiliary generators, motors, pumps,
etc., if needed.
- Keep your supervisor and/or appropriate city official informed of:
- Equipment, supplies, etc., needed for daily and emergency operations
of water system.
- The condition of all equipment.
- Any special conditions which may cause a change or variation in the
emergency plan.
- Furnish the Health District with a copy of your emergency plan including
emergency radio frequency.
- Move emergency supplies and all mobile and portable equipment to high
or safe grounds.
- Place protective covering over instrumentation/other items. (E.g. plastic
covering over controls, etc.)
- Brief all personnel. Make provisions for food, water and shelter for
employees remaining during hurricane.
- Have periodic drills to identify problem areas and attempt to solve same.
- During Hurricanes:
- If power outage occurs note the time of failure and the time when power
is restored.
- Start auxiliary equipment when necessary. Keep water tanks as full as
possible and pressure on the lines.
- Close appropriate valves to stop water loss from broken service and main
lines.
- If system water pressure cannot be maintained consideration should be
given to closing main valve storage tank(s)
- Consideration should be given to removal of electric motors if flooding
of area is imminent. Installing sump pumps in low area where appropriate,
sandbagging doors, etc., may also be considered.
- After Hurricanes:
- Survey water system including ground and overhead tanks, pumps, motors,
auxiliary equipment and supplies.
- If water pressure was not lost in any part of the system, operations
may continue as normal. Bacteria samples should be submitted to Health District
lab as a precautionary measure.
- Prepare for heavy water usage as people return and clean up begins.
- Notify the Health District as soon as possible after the above items
have been checked (phone, radio, in person). The District can then advise
inquiring parties (consumer, news media, etc.) of the status of your system.
- If the water system or any part of the water system lost pressure:
- Notify the Galveston County Health District
- Notify customers in effected areas that the water should be considered
contaminated until released by the Health District.
- Flush all lines in and around pressure lost areas.
- Check and maintain a chlorine residual of at least .5 ppm throughout
the distribution system (1 ppm in pressure lost areas and 2 ppm in storage
tanks).
- Sufficient chlorine tests should be taken to identify and eliminate
dead spots.
- Submit water samples for bacteria test to the Health District lab.
(Double number in area of water pressure lost.)
- Water samples should be taken each day until two (2) consecutive days
samples have been reported negative.
- If water is turned off or line pressure is otherwise lost, priority
for service restoration should be considered for hospitals, nursing homes,
etc.
- Contact the Health District each day, before noon, and inform them
of the status of your system. This can be accomplished by phone, radio,
or in person. Possibly at the same time as above.
FLOODS
- If necessary move all supplies (chlorine, etc.) to highest shelves available
and portable and auxiliary equipment to high ground to avoid rising water.
- Consideration should be given to removal or protection of fixed motors/instrumentation
if flooding of an area is imminent.
- Generally follow recommendations listed in: During
Hurricanes.
- If flood damage has not occurred, operations may continue as normal.
- If flood damage has occurred, (power outage, equipment failure, water
pressure lost, etc.) then:
- Contact the Health District as soon as possible.
- Generally follow the recommendations listed in: After
Hurricanes.
FIRE, EXPLOSION, CHLORINE LEAKS, ETC.
- Call appropriate agency immediately. (Post a list of emergency phone numbers
by each telephone)
- If emergency threatens the surrounding area, begin clearing the effected
area.
- Call the Health District as soon as possible.
FREEZING, WATER SUPPLY CUT-OFF, ETC.
- If freezing is forecast fill all water tanks.
- Wrap or otherwise protect exposed pipes, valve pumps, motors, etc.
- Be prepared for heavy water usage and water line breaks.
- Encourage customers to wrap and protect water pipes to conserve water
usage. Customer education on proper water pipe protection and water conservation
can be accomplished by:
- Mail (with water bills)
- Newspapers
- Radio
- City ordinances
- Water Supply Cut-Off
- If water supply to public water system is cut off or reduced, notify
the Health District as soon as possible.
- Notify customers that water should be considered questionable when
pressure is regained until released by the Health District.
- When water pressure is regained, follow standard accepted operating
procedures of flushing, chlorination and submission of samples.
- All public water systems should have more than one (1) water source
whenever possible.
- Two (2) or more wells
- Well and surface water connection (Texas City, Galveston, Houston
water supplies)
- Connection to another approved water system (WCID, MUD, etc).
The recommendations contained herein are intended as a quick reference guide
only. All problems that could occur with disasters such as storms, floods, fires,
freezing, etc. cannot be covered herein. There are varying sizes of water and
wastewater systems from large cities to small districts. Each system should
have a complete detailed emergency plan. Since each emergency plan will differ
somewhat and the damage to each system may vary it is requested that you keep
the Health District informed of the conditions of your system. This request
included any condition which may affect the water integrity such as total pressure
lost in all or part of the system. Health district will strive to stay in contact
with every water and wastewater system. Each water system should furnish the
Health District the name(s), address(es), and phone numbers (work and home)
of their licensed operator and/or the person in charge. The District is available
for consultation and assistance within our capability for any public health
concern.