Promote good housekeeping at the water treatment
plant. Some good housekeeping rules to adhere to are
Tools should be returned to their proper place
when no longer needed.
Empty bottles or other such objects should not be
left around on the floor where someone is likely
to trip or fall over them.
See that the plant is kept neat and clean at all
Among other things, ensure that passageways
are kept free of grease and oil.
Switchboards must not be used as clothes racks.
Do not work around electrical apparatus or
wiring with wet hands or in wet shoes or clothes.
Workers on night watch or otherwise required to
perform duties alone around water treatment
plants should be capable of swimming at least
100 feet while dressed in the usual type of work
An employee performing duties inside the tank
guardrail should wear a safety belt and lifeline
attached to the guardrail.
Guardrails should be maintained around all
water treatment plant open tanks. Handholds or
suitable ladders should be maintained on one
side wall of each open tank. Suitable handrails 8
to 12 inches above the waterline should be
maintained on each side of open tanks.
Q24. To reduce chlorine hazards, what maximum
amount of chlorine should you store in the
Q25. What do you use to test for leaks on chlorine
cylinders, equipment and systems?
Q26. If someone is affected or overcome by chlorine
or its action, what is the first thing you should
LEARNING OBJECTIVE: Recognize and
understand procedures for operation, donning,
use, and maintenance of different types of
personal respiratory protective gear.
In water treatment and sewage maintenance work,
you may use various types of respiratory protective
apparatus, such as self-generating oxygen-breathing
apparatus (OBA) and self-contained oxygen-breathing
apparatus. Personnel directed to use this equipment
should practice regularly with it to become proficient
in putting it on quickly and to become accustomed to
breathing through it.
Self-generating oxygen-breathing apparatus (OBA)
gives respiratory protection in moderately and extremely
high concentration of toxic gases or vapors or in an
atmosphere deficient in oxygen. This equipment includes
the following parts: a canister that holds chemicals to
absorb carbon dioxide and moisture from the exhaled air
and generates oxygen, and a breathing bag that serves as
an air reservoir and a cooling chamber for inhaled air.
Inhalation and exhalation check valves are parts of this
equipment. Figure 8-7 shows a self-generating A-4
Do not use the OBA in an explosive area as it
is a fire hazard.
The self-contained oxygen-breathing apparatus
(figs. 8-8 and 8-9) is effective for limited use against
any poisonous gas or oxygen-deficient atmosphere,
such as when you are inspecting long, large sewers
where a hose mask would be impractical. This
equipment generally includes the following parts: a
steel cylinder or bottle containing oxygen as needed at
slightly higher than normal pressure.
The respiratory apparatus should be kept in
access ible locations, but in quarters segregated from
probable gas hazards.
You must become thoroughly acquainted with
oxygen-breathing equipment before wearing it in
service. More information on the A-4 oxygen
breathing apparatus can be found in the Basic Military
Requirements, NAVEDTRA 12043.