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99
ENVIRONMENTAL HEALTH
1. WATER SUPPLY.
The whole area is serred, by the Metropolitan Water Board through
a piped main supply. Regular chemical and bacteriological examinations
are carried out by their Water Examination Department but in addition
to this on 26 occasions samples were taken from private houses*
schools„ day nurseries and all samples were satisfactory,
2. SWIMMING BATHS.
(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 hail for concerts, dancing and other purposes. In addition
there is an instructional pool.
The baths are equipped with pressure filters and sterilization is
effected by breakpoint ehlorination. Apart from regular pool-side
tests of the chemical condition of the water, 112 samples were taken
during the year for bacteriological examination and all were reported
satisfactory.
The Surbiton lagoon, situated in Raeburn Avenue, Surbiton, is an
open air pool 165 feet long, the water being treated by continuous
pressure sand filtration and breakpoint chlorination, Apart from
chemical tests 16 samples were taken for bacteriological examination;
these were satisfactory apart from one occasion when due to interruption
of supplies of gas, the water was under-chlorinated,
(b) School Pools, One private school has a small swimming
pool without filtration plant,, the water being changed as necessary,
sterilization being carried oat by hand dosing by hypochlorite.
Seven primary schools have swimming pools with treatment plants.
In addition to numerous poolside chemical tests, 90 samples of water
were taken for bacteriological examination, of which six were reported
as having counts higher than desirable.
Two samples of swimming bath water were taken for chemical
analysis during the year.