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18
The Sewerage of the district is now, except in the
older parts of the district, dealt with on the separate system.
The sewage of the district as a whole is disposed of, together
with that of Richmond, at the joint Sewerage Works in Kew Lane,
Mortlake, under the able direction of Mr. Pairley, the Engineer.
The chemical methods in use for so many years are, I understand,
likely to be gradually superseded by biological systems which
have been tentatively employed, for some years now, to a certain
extent.
Messrs. Watney, Combe & Reid have, at Mortlake, adjoining
the works of the Joint Main Sewerage Board, a private septic tank
installation of their own, at which a considerable volume of liquid
from the Mortlake Brewery is efficiently dealt with.
There has been no recurrence during the last year or two of
the flooding with storm water which formerly occurred in some
parts of Barnes, and the development of the Barnes and Mortlake
Sewerage system, under the advice and supervision of Mr. Tomes,
Surveyor and Engineer to the District Council, has more than kept
pace with the development of the district. (See report for 1905).
A sewer will be shortly needed, and then of course provided,
to deal with the extension of buildings in the direction of Palewell
Common, and this sewer, when laid, will, without doubt, be utilized
to take the sewage from certain houses in East Sheen that at
present depend on cesspools or small private irrigation systems.
The condition of a good many of the old house drains is not
satisfactory. But in the last six years house drains have been
reconstructed or amended, at the instance of the Sanitary Department,
in over five hundred cases, 'and the task is being gradually
overtaken,