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22. WATER SUPPLIES, SWIMMING BATHS AND
SEWAGE DISPOSAL
WATER SUPPLIES
Pour water undertakings supply the borough with mains water. The Colne Valley Water
Company supplies small parts of Perivale and Horsende, Wards. The Rickmansworth and
Uxbridge Valley Water Company supplies the remainder of Perivale and Horsenden Wards,
part of Waxlow Manor Ward and the whole of Ravenor, Mandeville and West End Wards. The
South West Suburban Water Company supplies the whole of Dormers Wells and Northcote
Wards, the remainder of Waxlow Manor Ward and part of Glebe Ward. The Metropolitan Water
Board supplies all other areas of the borough not already mentioned.
These public supplies have been satisfactory in quality and quantity and are not
subject to plumbo-solvent action. Water from public mains was supplied to 92,937
dwellings with a mid-1970 estimated population of 294,820.
Private supplies are derived from wells at factories in the borough. In these
factories water is obtained from deep borings ranging in depth from 300 to 600 feet.
54 samples of water from these wells submitted for bacteriological and chemical
examination during the year were all satisfactory, although 3 had a high iron content
due to internal rusting of supply pipes; this condition was subsequently remedied.
As a result of complaints, 13 samples of tap water from public supplies were taken
all of which proved satisfactory.

SWIMMING BATHS
The Council has public swimming baths at Ealing, Acton, Southall and Northolt.
In addition, at four of the Council's schools there are swimming pools, and there is
also a pool at one direct grant school.
Private swimming pools are provided for the residents of a housing estate, a modern
block of flats and at a sports club.
Samples of water from each pool were taken at regular intervals throughout the year
and submitted for bacteriological examination.
A total of 194 samples was taken of which only 4 were unsatisfactory. In the latter
cases repeat samples were found to be acceptable and advice was given where necessary.
The results are as follows:-
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