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(d) No artificial fluoride was added, and where the fluoride content is
indicated in the analyses it represents the naturally occurring fluoride
in the water.
2. (a) The supply was derived from the following works and pumping
stations:
River Thames derived (Northern) water to the west and north of
the Borough, with some well water from Hoe Lane, Hadley Road and
Waltham Abbey pumping stations. The south-east portion of the
borough in Edmonton receives New River-derived water.
No new sources of supply were instituted and there were no
changes to the general scheme of supply in your area.
The number of samples collected and the bacteriological and
chemical analyses of the supply from the above sources after treatment
are shown on the attached sheets.
(b) On account of their hardness content and alkaline reaction the Board's
river and well water supplies are not considered to be plumbo-solvent.
It should, however, be appreciated that all types of water pick up
varying amounts of metal from the material of water piping particularly
when it is newly installed; this applies to copper, zinc, iron and also
to lead. Surveys carried out between 1966 and 1968 on analyses of
water from consumers' premises confirmed this statement."
(See Statistical Tables 29, 30 and 31)
BATHS, VVASHHOUSES, BATHING PLACES, ETC.
Part VIII of the Public Health Act, 1936, empowers local authorities to provide
and control baths, washhouses and bathing places.
The council provides three open-air and four covered swimming pools for the
general public, a swimming pool for the exclusive use of school children, and four
swimming pools situated within school premises.
A total of 75 slipper baths is provided at three of the public swimming pools.
Children's paddling pools are sited at two of the pools and in a number of council
parks.
All bathing water is subjected to regular chlorination. Automatic filtration and
chlorination plants are installed at the public baths, at the swimming pool used
exclusively by school children and at two of the school pools. Water supply is from
the public water mains except for a school swimming pool supplied by a deep well.
Bathing water samples are tested at the baths at regular intervals during the
day for the presence of free chlorine which is indicative of the effectiveness of the
treatment. Samples are also regularly submitted to the laboratory for bacteriological
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