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85
ENVIRONMENTAL HEALTH.
1. WATER SUPPLY.
The whole of the area is supplied by the Metropolitan Water Board
and the supply has been satisfactory both as regards quantity and
quality. In view of the large number of routine bacteriological and
chemical examinations carried out by the Water Examination Department
of the Board it was not considered necessary to make many routine tests
but twenty-five samples were taken and proved to be satisfactory.
Well water is used for industrial purposes at certain factories,
but is not used for domestic consumption; all the houses in the
Borough are provided with a main water supply.
2. SWIMMING BATHS AND POOLS.
(a) Public. The Corporation's indoor swimming baths are
situated in Denmark Road, Kingston upon Thames and comprise two pools,
one of which is in use throughout the year, whilst the other is used
for swimming during the summer months, and in the winter season is
converted for use as a hall for concerts, danaing and other purposes.
In addition there is an instructional pool.
The baths are equipped with pressure filters capable of treating
the water of both pools every 3i hours during bathing periods. In
hot weather the filters are working continuously day and night.
Chlorination is marginal and the residual quantity is maintained at
the deep end of the baths with a maximum of 0.6 parts per million
free chlorine.
The water in these baths was sampled on 17 occasions by the
Department in addition to frequent tests carried out by the Borough
Engineer and Surveyor. At one time during the year some difficulty
was experienced in maintaining one pool in an entirely satisfactory
condition but following alterations this was overcome.
The Surbiton Lagoon, situated in Raeburn Avenue, Surbiton, is
an open air pool 165 feet long and 90 feet wide, with a depth of three
to nine feet. There is also a paddling pool for small children.
The water is from Metropolitan Water Board mains and is treated
by continuous pressure sand filtration, sterilisation by breakpoint
chlorination and oxygenation over an ornamental cascade.
Periodical samples of water are taken by the Borough Engineer
and Surveyor and the plant is adjusted as necessary. In addition
12 samples were taken by the Health and Welfare Department for chemical
and bacteriological examination, all of which proved to be satisfactory.