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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, Wansunt, Crayford, 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 1956.
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 now 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 11 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.
Sewers have been constructed on the following estates:—
S.W. Sewers 285 lin. yards. Brasted Close.
Foul Sewers 53 lin. yards. Fairfield Road.
In addition to the above developing owners have constructed
private sewers on the following estates: —
Stevens No. 10 Estate. Yew Tree Nurseries, Welling.
Marina Drive, Welling. Brasted Close, Bexley.
South View Close, Bexley Thanet Road, Bexley.
Woodstock Close, Bexley. Dane Close, Bexley.
These sewers are of the back drainage system and have
not as yet been taken over as Public Sewers.
2. Rivers and Streams.
One case of pollution of the River Shuttle was found
during the year. The cause of the pollution was found to be
certain drains which were connected to the storm water
sewer instead of the foul sewer. This was remedied, and the
pollution ceased.
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