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26
The filters used can deal with the total capacity of the
pools every four hours and they require cleaning by "back washing"
once or twice a week according to the use which is made of the
baths. Water used for cleaning the filters in this way runs to
waste and is replaced by fresh water from the Metropolitan Water
Board. The quantity of water so replaced amounts to about one
fifth of the capacity of the bath in the case of the Youth Pool and
from one fifteenth to one tenth of the capacity of the two larger
baths. In addition to this regular partial replacement of the
water the Goldhurst Pool is completely emptied at the end of
each summer and the two other pools are emptied every 12 to 18
months for cleaning.
Samples of the swimming bath waters are taken regularly
for chemical and for bacteriological examination. During I960
ten samples were taken for chemical analysis and 52 samples
were taken for bacteriological examination. In all cases the
results of examination were satisfactory.
Sewerage
All the houses in Hampstead are connected to the main
drainage system, the sewerage passing eventually to the London
County Council's main sewers and to the sewage disposal works
outside the Borough.
Major reconstruction works to prevent as far as possible
the danger of flooding after heavy storms were completed some
years ago and have proved satisfactory. No new schemes for
sewerage within the Borough are contemplated at the present time.
London County Council (General Powers) Act, 1955. Section 27
This section is of considerable benefit to the Department
as it cuts out the unreasonable delay often associated with the
service of the usual nuisance notices.
Essential pre-requisites to the service of such notices
are: (a) the Council must be satisfied that the house is in such a
state as to be a nuisance or injurious or dangerous to health and
(b) having regard to all the circumstances unreasonable delay
would be occasioned by the procedure prescribed by the usual
nuisance notices.