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REPORT OF THE CHIEF PUBLIC
HEALTH INSPECTOR
This is the Eighth Annual Report on the Environmental Health
of the London Borough of Merton and the contribution which Public
Health Inspectors and the other members of the Environmental Health
team are making to improve standards within the Borough.
SERVICES UNDER THE PUBLIC HEALTH ACTS
Water Supply
The Metropolitan Water Board and the Sutton District Water
Company are responsible for the supply of water to the Borough and
regular periodic examinations are made by these undertakings. Reports
on examinations are also exchanged with adjoining Local Authorities
who are supplied by the Sutton District Water Company.
All the dwelling houses within the Borough are supplied from
public water mains direct to the houses. A number of industrial
premises have an additional supply of water from their own deep wells.
There are four caravan yards within the Borough, each with a standpipe
supplying mains water.
I am indebted to the Director of Water Examination, Metropolitan
Water Board for the following information so far as the supply
from that Authority is concerned:—
'The supply was satisfactory both as to quality and quantity
throughout 1972.
'All new and repaired mains are disinfected with chlorine;
after a predetermined period of contact the pipes are flushed
out and refilled; samples of water are then collected from
these treated mains; and the mains are returned to service
only after the analytical results are found to be satisfactory.
'The quality control from these laboratories is carried out by
means of daily sampling from sources of supply, from the
treatment works or well stations, from the distribution system,
and through to the consumer. Any sign of contamination or
any other abnormality is immediately investigated.
'The Board has no record of the number of structurally
separate dwellings supplied in the area, but the population
supplied direct according to the Registrar-General's estimates
at 30th June, 1972, was 147,718
'No houses were permanently supplied by stand-pipe.
'No artificial fluoride is being added and where the fluoride
content is indicated in the analyses, it represents the naturally
occurring fluoride in the water.
'The supply was derived from the following works and
pumping stations:—
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