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Water Board has a content of 0.3 p.p.m., and in the case of the Lee Valley Water Company
in general the content is less than 0.2 p.p.m., but there is a small source in New Barnet
which has a natural fluoride content of 1.05 p.p.m., but this is rapidly diluted with water
from another source having a content of less than 0.2 p.p.m.
The whole district receives mains water direct and none is supplied by a permanent
standpipe.
FOOD
Five hundred and thirty-four samples of food were submitted for analysis during the
year. A table identifying the commodities and showing results is set out below. The
number of samples reported as unsatisfactory was 7.7 per cent of the total submitted.