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dition it flows into settling tanks, of which there are five,
four having a capacity of 70,000 gallons, and the fifth,
which will hold 92,000 gallons.
The overflow from the tanks first passes out of the
tanks into an opeu channel, then into the first Contact Bed,
and through the filter or second Bacteria Beds into an
effluent chamber, and thence into the brook referred to
above.
The roads in this District have separate sewers for
storm water, and all houses except the older ones have
the dual system of drainage.
An endeavour is being made to carry the storm water
from the old houses into the surface water sewers, as opportunities
occur.
This is very necessary, as everything should be done to
make the flow of sewage at any sewage works as uniform as
possible.
The sewage from the Avenue and Ely Place section of
the Disrict has to be pumped to the Sewage Works, and
in this case any rain water admitted to the sewers greatly
increases the cost of lifting the sewage to the gravitation
sewers.
New Sewers.
During 1911 new sewers have been laid in part of
Beaconsfield Road, Chandos Avenue (Extension), Fenstanton
Avenue (site of), Clevedou Avenue (site of) and
a further portion of the watercourse running eastwards
from the Finchley boundary near Grove Road has been
enclosed and culverted with a 4 ft. diameter culvert consisting
of reinforced granite concrete tubes laid in concrete.