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59
Description of sample Milligrams per litre (unless
otherwise stated)
Silicate as SiO 9.0
2
Sulphate as SO4 50.0
Fluoride as F 0.20
Magnesium as Mg 6.0
Surface Active material as Manoxol 0.11
Electrical Conductivity (Gemmhos) 525.0
Bacteriological Examination after Chlorinatlon
(Water passing into supply
after treatment)
Plate counts (average per ml.)
Colonies counted on agar 37°C (20-24 hours) 10.0
Coliform count percentage samples negative
in 100 ml 99.84
E. coli count percentage samples
negative in 100 ml 99.89
Water from Wells
There are a number of wells in use, the majority of which however, supply
water used only for industrial purposes. The water from two wells is used for
drinking purposes, or for the preparation of food. Reports of the analyses of
water from these two wells are received regularly and have been satisfactory for
the year under review. In addition two samples were submitted to the Public
Analyst, one for chemical analysis and one for bacteriological examination
both of which were satisfactory.
Sewers
1 am indebted to the Borough Engineer for supplying me with the following
information with regard to sewers within the Borough.
"There are 142 miles of highways in the Borough of Lambeth in which are
laid sewers varying in size from 6" diameter to 4' 6" x 2' 8" wide and maintained
by the Council's Direct Labour Staff.
These sewers and gully connections need regular maintenance and in
several cases reconstruction. The Council's expenditure on such work is at the
rate of £20,000 approximately for maintenance and £27,000 approximately for
reconstruction per annum. During the past twelve months the sewers in the
following list of streets have been relaid.