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22
Mr. Hugh G. Ramsay, Engineer to the South Essex Waterworks Co.,
has kindly supplied me with the information that over 3,000 chemical,
bacteriological and biological examinations were made at the Langham
laboratory, and all were reported as wholesome.
The length of mains laid by the South Essex Waterworks Co. in Ilford
during 1946 was 34 yards of 3-inch, 1,705 yards of 4-inch, and 147 yards of
6-inch.
There are now no public wells in existence. There are a few private
wells for commercial and domestic purposes, the latter serve the needs of
those properties (six in number) not conveniently situated for connecting
to the main supply.
Ten samples of piped water supply (7 South Essex Waterworks Co. and
3 Metropolitan Water Board) were taken for chemical and bacteriological
examination, and all gave satisfactory analyses.

Collection of Salvage:-
Weight Collected 6,160 tons
Gross Income £19,188
Net Income £11,155
ILFORD AND BARKING JOINT SEWERAGE SCHEME.
Personnel Re-organisation.—A complete re-organisation of the
operating and maintenance staff has been carried out. As a result maintenance
matters now receive more adequate attention and the men are
engaged on duties where their skilled craftsmanship is more suitably
employed.
Painting Shafts and Tunnel.—The two shafts and tunnel carrying
the four 21 inch pumping mains underneath the adjacent River Roding
between the Joint Pumping Station and the L.C.C. culverts have been
thoroughly wire brushed and painted (3 coats).
The tunnel is 300 ft. long and 7 ft. 6 ins. in diameter. Two shafts
each 70 ft. in depth were constructed in 1933 at a cost of £31,500.
Provision of New 16/18-inch Centrifugal Type Sewage Pump.—In
view of the small reserve of pumping plant capacity available, it has been
decided to extend the pumping plant by another pumping unit complete
capable of pumping 500,000 gallons per hour. At present seven large
volume pumping units are installed at the Joint Pumping Station comprising
five centrifugal type and two reciprocating type pumps. All units
are at present duplicated except the 500,000 gallons per hour unit.
When the new pumping unit becomes available, all the eight large
volume pumping units will then be in duplicate and should, it is estimated,
provide sufficient pumping capacity to cope with all requirements.
New 660 B.H.P. Diesel Engine.—A new 660 B.H.P. Diesel Engine
was recently installed to replace the 400 B.H.P. Diesel Engine which was
damaged beyond repair following a crankshaft failure.
Allowing for overload conditions, the overall power station electric
generating capacity has been increased by nearly 40 per cent. Having
regard to the existing Electric power supply difficulties such increase in
generating capacity is a most valuable factor.