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18
SANITARY CIRCUMSTANCES OF THE BOROUGH.
Water, (i) The water supply has been satisfactory both in
quality and quantity. There are three sources of supply in the
Borough. The Greenford North, Greenford South, Greenford
Central and Perivale Wards are supplied by the Rickmansworth
and Uxbridge Valley Water Company with the exception of five
roads in Perivale Ward which are served by the Colne Valley
Water Company. The rest of the Borough is supplied by the
Metropolitan Water Board.
(ii) No samples were taken during the year from any pipe
supply either for bacteriological or chemical analysis.
(iii) No plumbo-solvent action occurs in any of the water
supplies.
(iv) No action was taken in respect of any form of contamination.
(v) Water from public mains is supplied to 49,034 houses
with an estimated population of 187,200.
There are eight factories in the Borough using water from
deep borings ranging in depth from 300 feet to 600 feet. The
water is used for general factory purposes and in four of them it
is also used for drinking. Four other deep borings exist but are
at present unused.
Rivers and Streams.—No complaints were received during
the year with reference to the River Brent or its tributary stream.
Drainage and Sewerage.—With the exception of 32 houses
in Northolt Ward, one in Perivale W7ard, three in Greenford North
Ward, two in Hanger Hill Ward and three in Drayton Ward,
all houses in the Borough are supplied with water closets and are
connected to the sewerage system. During the year one house
previously drained to a cesspool was connected to the sewer.
A new sewer is in course of construction in the old Ruislip
Road at West End and it is hoped to connect some seventeen houses
during 1949.