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29
SECTION 2.
SANITARY CIRCUMSTANCES OF THE DISTRICT.
WATER SUPPLY.
The water supplied to the area by the South Essex Waterworks
Co., comes from various sources, principally from the Company's
wells in the chalk at Ilford, Seven Kings, and Dagenham. The
water is untreated and varies in hardness from 10 to 20 degrees,
according to the source from which it is obtained. The supply is
periodically analysed and is always reported on as of the highest
degree of bacteriological and chemical purity.
RIVERS AND STREAMS.
The Rivers and Streams of the district come within the jurisdiction
of the Essex Sewers Commissioners (who are the Tidal Flush
and Flood Water Drainage Authority), and the Port of London
Authority, who are the recognised Navigation Authority for the
Thames, as defined by the Port of London Consolidation Act, 1920,
and who have also certain powers as to the fouling of streams, etc.
In the early hours of the morning of January 7th there was an
exceptionally high tide when the River Roding overflowed its
banks with subsequent flooding and damage to properties situate
in the vicinity of the river.
The level to which the previous highest recorded tide had
reached was 16.75 feet above ordnance datum. The tide on January
7th reached 17.80 feet above ordnance datum.