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21
SECTION C.
SANITARY CIRCUMSTANCES OF THE AREA.
Water.
Iam indebted to the Director of Water Examination of the
Metropoiitan Water Board for the following information regarding
the supply of water to the Borough during 1944 :—
"The main supply to Bromley is a mixture of water from
Shortlands Well and filtered Thames water. Occasionally part
of the supply is derived from Eynsford and Bexley, West
Wickham and Orpington Wells. All the water is chlorinated
as it leaves the works.
"Bacteriological analyses are made five times per week of
all supplies at the works, 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,
but with regard to the well waters, owing to the conditions of
treatment, only Bexley water can be tested before chlorination.
All new and repaired mains are chlorinated before being
restored to use, and samples of water from them are tested
wteriologically.
"None of the supplies is plumbo-solvent.
We have no information with regard to the proportion of
the total number of dwelling houses in Bromley which are supplied
by the Board, but of these all are supplied direct and not
by means of standpipes.
"Appended are the average results of the chemical and
bacterolgical analyses of the various supplies."
Bacteriological Results—January-December, 1944.
No. of Bact. coli Colonies on agar
Samples. neg in 100 ml. 24 hrs. at 37° C.
per 100 ml.
Shortlands 251 100% 0
Eynsford 306 100 0
Bexley 157 100 0
West Wickham 185 100 0
Orpington 252 100 0
Thames filtered
Water 248 99.6% 0.01
(Walton Works)