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46
SECTION D. SANITARY CIRCUMSTANCES OF THE AREA.
WATER.
I am indebted to the Director of Water Examination of the
Metropolitan Water Board for the following information on the
supply of water to the Borough during the year:—
" The supply to the Bromley District during 1947 has been
adequate at all times. The higher level is supplied from
Shortlands well and by the Thames-derived filtered water; the
lower level is supplied from West Wickham and Orpington wells
with additional Thames-derived water during the summer
months.
" All the Thames-derived water is chlorinated as it leaves
the works. The well water is also chlorinated, but any residual
chlorine is completely removed before the water leaves the
works.
" Bacteriological analyses are made five times a 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 disinfected with chlorine 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 analyses are not
un to standard.