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No licences were issued under Section 269 of the Public Health
Act, 1936.
Swimming Baths and Pools.
There is only one small indoor swimming bath, which is
privately owned, measuring 46 feet by 23 feet. It is fed from the
mains supply and the water is subjected to a constant process of
precipitation, filtration and chlorination by gaseous chlorine. A
sample was taken at 3 p.m. on a day towards the end of June after
18 persons had paid for admission. The bacteriological condition
was as follows :—
Number of colonies per ml. developing in 2 days upon agar at 37 deg. C. 2400
Number of colonies per ml. developing in 3 days upon agar at 22 deg. C 5000
B. coli absent from 100 ml.
B. welchii present in 10 ml.
Diphtheroids absent from 100 ml.
Haemolytic streptococci . absent from 100 ml.
Streptococcus brevis present.
Staphylococcus albus present.
Staphylococcus aureus present.
" B. coli and many other organisms added to the water by the bathers
must have been killed whilst the water was still in the bath, an indication of
the effectiveness of the chlorination. The action of the chlorine during transport
of the sample for bacteriological examination was prevented. The chemical
composition is satisfactory and the clarity of the water shows effective filtration."
One hour and 42 minutes after sampling the water contained
0.12 parts per million of free chlorine.
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