View report page

9
water supplied to this area by the South West Suburban
Water Co. is taken by that Company from the Metropolitan
Water Board. The water supply has been satisfactory both
as regards quantity and quality.
2. Samples for bacteriological examination and chemical
analysis are taken five times each week by the Metropolitan
Water Board of the raw water and the treated water at all
stages of purification, and weekly samples have been taken
by the South West Suburban Water Co. In addition, eight
samples were taken by my department. There is an arrangement
between my Council and the Councils of the following
districts :
Hayes and Harlington
Windsor
Egham
Bagshot
Easthampstead
by which the water supplied by the South West Suburban
Water Company to the combined districts is sampled twentyfive
times a year on a rota.
Average Results of Analyses of Metropolitan Water Board
Supply. (Parts per million.)
Hampton Kempton
Park
No. of Samples 250 250
Ammoniacal Nitrogen 097 .056
Albuminoid Nitrogen 080 .091
Oxidised Nitrogen (Nitrate) 3.8 3.6
Chlorides as Cl. 27.5 27.3
Oxygen abs. from Permanganate 3 hours at
80°F 96 1.03
Turbidity in terms of Silica 5 .4
Colour m.m. brown 2 ft. tube Burgess's
Tintometer 16 16
Hardness Total 248 257
Hardness (Permanent) 71 71
pH Value 7.7 7.9
Conductivity 475 475
Bacteriological Results
No. of Samples 1065 954
Colony Count on agar at 37°C 4.7 18.5
BACT. COLI TEST
Percentage of samples negative per 100 ml. 100 100
Bact. coli per 100 ml. Nil Nil