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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:- The higher ground
around Muswell Hill is supplied from the River Thames Group via Fortis Green pumping station.
The remainder of the borough is supplied from the New River Stations.
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.
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