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1. (i) Water Supply.
The water to the district is supplied by the Metropolitan
Water Board and is derived from several sources
namely, Wilmington, Darenth, Bexley and Deptford wells,
the latter mixed with Thames-derived filtered water. All
the water is chlorinated as it leaves the works. There have
been no important extensions of trunk mains and there
have been no changes in the general scheme of supply to
the Borough during 1958.
Bacteriological analyses are made at least five times
a week from all supplies and in the case of the wells the
water is sampled both before and after chlorination. The
water derived from the River Thames is sampled at each
stage of the purification process and tanks to provide an
adequate period of contact of the chlorine with the water
are in operation at all the well stations and at Walton
works.
All new and repaired mains are chlorinated before being
restored to use and samples of water from them are tested
bacteriologically.
During the year 7 samples of water from piped supplies
were taken and submitted to the Public Health Laboratory
for bacteriological examination and all were found to be
satisfactory.
(ii) Drainage and Sewerage.
New drainage and sewerage schemes:—
Central Avenue and Vaughan Road, 360 yards S.W.S.
Highland Road, 70 yards F.S.
Developing owners have constructed private sewers
and drains at the following sites: —
Stuart Evans Close
Westerham Drive
Highbanks Close
Robina Close
Midhurst Hill
Service Road E. Rochester Way at junction with Danson
Road.
2. Rivers and Streams.
No serious pollution was found in rivers or streams
during the year.
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