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Wanstead Well 0.55 - 0.6 of a milligramme per litre F.
River Lee derived0.3 - 0.45 of a milligramme per litre F.
"The water supplies have been satisfactory in both quantity
and quality during the year. The length of new service mains laid in
the Borough during 1963, was 291 yards. All new and repaired mains
are chlorinated before being restored to supply and samples from
these are tested to confirm that the quality of the water in them is
up to the standard normally supplied."
A total of 1,086 samples was submitted to chemical and/or
bacteriological examination.
The water provided to the remainder of the Ilford district by the South
Essex Waterworks Co. is obtained from the River Stour and from deep
wells at Mill Road, Grove Road and Roding Lane.
Mr. P. Gordon Spencer, Chief Engineer to South Essex Waterworks
Co., has kindly supplied me with the following information.
"During 1963 over 3,967 chemical, bacteriological and biological
examinations were made at the Langham Laboratory, and all water going
into supply was reported as wholesome. In addition samples were
examined for radioactivity.
Samples from the wells situated in the Company's area of supply
were analysed weekly and all were likewise reported on as above; in
addition, samples were taken weekly from houses in various parts of the
supply area for bacteriological examination and they were invariably
perfectly satisfactory.
A supplementary supply of water was obtained from the Metropolitan
Water Board during the months February to July (inclusive), the total
quantity being 388.646 million gallons.
The water supply of the area and of its several parts has been
satisfactory as to quality and quantity.
The fluoride content of the various supplies is as follows:—
Mill Road Well 1.1 P.P.M.
Roding Lane Well 1.1 P.P.M.
Grove Road Well 1.4 P.P.M.
Langham, Layer and Hanningfield 0.2 to 0.25 P.P.M.