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practically sterile water, and one excellent for the purpose of a public
supply.
Drainage and Sewerage.
The construction of drains for new buildings is supervised by
the Borough Surveyor and his staff, after plans for the erection of
the new buildings have been approved by the Highways Committee
and the Council.
The reconsruction or repair of drains is supervised by the Public
Health Department, and details of the house drainage work supervised
by the Sanitary Inspector will be found below.
The Richmond Main Sewerage Board formed in 1887, of which
the constituent authorities are the Richmond and Barnes Corporations,
deals with the sewage from the Boroughs of Richmond and Barnes.
The Board's works are situated alongside the River Thames in
the Parish of Mortlake.
The sewage of the Borough is conveyed by numerous collecting
sewers into a main outfall sewer.
The town was partially re-sewered in 1898.
The separate system was introduced many years ago and surface
water sewers are now laid along most of the streets within the Botough.
Arrangements have recently been made to enlarge the Sewage
Works, at the same time improving the plant.
Treatment of Sewage.
The present method of sewage disposal at the Works is that of
precipitation, and through bacterial filter beds, the effluent passing
into the Thames.
Swimming Baths and Pools.
There are no privately owned swimming baths or pools in the
Borough, the district at present being served by the Public Baths
which arc under the control of the Baths Superintendent, who has