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40
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:—
"No standpipe supplies were provided and houses throughout
the Borough received their supplies direct from the public
water mains.
"During the year approximately 2,000 yards of 18 in. trunk
main were laid in Masons Hill and Bromley Common.
"No new sources of public water supply were instituted in the
Borough and there were no cnanges in the general scheme of
supply. The supply to the Bromley district during 1948 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 100 per cent, first-class 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 up
to standard.
"Appended are the average results of the chemical and
bacteriological analyses of the various supplies for 1948."