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57
by carriers to a gravel pit of an area of 3½ acres for further purification
before being allowed to pass down the effluent channel into the River Lea.
In addition to the works which I have enumerated, there is a low-level
pumping station at Angel Road, which receives the sewage from the
factorieis and the few cottages which have been built on the east side of
the railway, also from a new estate lying between Dyson's Road and the
railway. The effluent is examined by the analysts of the Lea Conservancy
Board and the Middlesex County Council at frequent but irregular
intervals.
During the past year further improvements have been made at the
sewage works for the disposal of the sewage of Edmonton and Southgate.
A bacteria bed is being constructed of an area of one acre which will
treat a further million gallons per 24 hours.
A new centrifugal pump and 20 H.P. electric motor has also been
fixed, for pumping purified sewage into the effluent channel.
During the past year no complaints have been received with regard
to the quality of the effluent. It has been analysed on twelve occasions
by the Lea Conservancy Board and the Middlesex County Council and
found to be satisfactory, and in some cases good enough for passing
into the River Lea above the intake of the reservoirs. It has also been
analysed by the Council's analyst on each occasion.
The system of surface water drainage has been extended in
connection with new buildings in various parts of the district and also
new sewers laid where necessary.
The sewage farm of the Enfield Urban District extends over 109
acres, and is entirely situate in Edmonton, lying to the north of our
own farm. There are five bacteriological filters.
House Refuse Removal. Edmonton does not possess a
dust destructor. An arrangement with the same contractor for removal
of the house refuse was settled for twelve months, ending 30th September,
1913, at a price of £1,188.
The Engineer reported to the Sanitary Committee on January 3rd,
1912, that at this time the whole of the refuse was being deposited on the
land of, the sewage farm at the rate of 25 tons daily; the system adopted
was to lay it out to a depth of two feet and after a few years put sewage
over it; that this led to difficulty in applying sewage, and that now as
the land available was scarce the refuse pile was ten feet high; that the
gravel pit would take eight years as a shoot to fill up. The Engineer
concluded by recommending the construction of two temporary furnaces