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30
SANITARY CIRCUMSTANCES OF THE AREA.
Water.
Considerable development has taken place in the
area with regard to the water mains. 2,500 yards of
twenty-one inch mains will have been laid when the
scheme now embarked upon is complete. With very
few exceptions the water is from the supply of the
South Essex Water Company. A very small part in the
north-west of the district derives its water from the
Metropolitan Water Board.
Drainage and Sewerage and Sewage Works
Extensions.
The building activity in the area has increased
during the year to a considerable extent. In nearly all
cases the properties erected are connected to the
sewerage system. In outlying portions of the Hog Hill
area a few houses have been built which have no access
to sewers. Also the scheme mentioned in my previous
Report for the sewering of the Manor Farm Estate has
not yet been completed, although I understand that at
the time of writing this report provisional apportionment
notices have been served on the frontagers. The
nature of the soil in this area is such that it permits
easy percolation from the cesspools which do not in all
cases comply with the byelaws which require that they
shall be impervious.
The work of completing the activated sludge plant
at the Riverside Works is almost accomplished and
the generation of combustible gas is now taking place.
Rivers and Streams.
The upper portion of the district is drained by a
number of channels which run in a westerly direction,