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39
"All the water is chlorinated as it leaves the works.
"Bacteriological analyses are made five times per week of
all supplies and consistently satisfactory results have been
obtained. In the case of the river derived supply the water
is tested bacteriologically at all stages of purification. All new
and repaired mains are chlorinated before being restored to
use and samples of water from them are tested bacteriologically.
None of the supplies is plumbo-solvent.
The closest watch is kept for any form of contamination
and immediate action is taken if the results of the analyses are
not up to standard.
Appended are the average results of the chemical and
bacteriological analyses of the various supplies."