MIL-HDBK-1130
water supply, should be continued unless otherwise directed by the EFD
Environmental Branch. Algae control should be maintained in reservoirs and
tanks in accordance with local and seasonal requirements. Clear wells and
tanks should be kept filled. Wells that produce the least satisfactory water
or that are more expensive to pump should be designated for standby service.
Normal water pressure should be maintained throughout the entire distribution
system. Leaks and damage to piping, hydrants, valves, and appurtenances
should be repaired. Dead-end lines should be flushed regularly. All mainline
valves should be tested at intervals. Exposed waterlines subject to freezing,
as on piers, should be disconnected from the system and drained. In addition,
the following steps should be taken:
Treatment plant capacities should be reduced to the degree
a)
practicable in order to conform to expected water requirements.
Surplus tanks should be drained and cleaned, and outlets
arranged so that water will not be retained. Provision should
be made to prevent damage from uplift or freezing.
The number of filters and other water treatment units required
b)
for reduced flow conditions must be determined individually for
each station; most satisfactory results may not always be
obtained with intermittent operation of clarifiers. Filters
can be operated at reduced operating rates in rotation for such
periods as necessary to provide the amount of water required.
In general, each filter should be operated for short periods at
least every 3 days. Apply treatment to prevent organic growth
to filters as necessary. If there are two or more filtration
plants, one may be placed in an inactive condition, provided
adequate fire protection service can be maintained with the
remaining filter capacity. Inactivate filtering and water-
softening equipment as indicated in para. 2.2.11.
A fire hydrant flow test should be made just prior to the
c)
freezing season. Fire hydrants should be tested for frost
action after each period of prolonged cold weather. Hydrant
barrels should be pumped out at the end of these tests.
2.5.6
Potable Water Reactivation
Inspection. Consult with the Environmental Branch at cognizant
2.5.6.1
EFD's in the technical planning of facility reactivation for establishing
water system adequacy, operating procedures, and coordination with regulatory
agencies.
2.5.6.2
Facilities and Equipment. Equipment, piping, valves, and controls
should be reactivated as specified for similar equipment. In particular, the
distribution system should be chlorinated. Filtering and water-softening
equipment for special uses, such as boiler plants and laundries, is included
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