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87
showed that these waters were of uniformly excellent quality.
(b) Chemical Analyses
The arrangements for chemical analyses are similar to those
for bacteriological examinations. The total numbers of samples
analysed in the Water Department' s laboratory and by the
consultant were 97 of raw waters and 137 of treated waters going
into supply.
The results of the chemical analyses were uniformly
satisfactory.
The waters are not liable to have plumbo-solvent action.
The whole of the population and dwelling-houses within the
area of supply are supplied from public water mains direct to
the houses.
Testing of Samples by the Health Department
Weekly samples have been submitted to the area Public
Health Laboratory, for bacteriological examination. The
premises from which the samples are taken are selected to cover
each week the different sources of supply to the several areas
of the borough. In addition, a monthly chemical analysis is
carried out by the Public Analyst, who is furnished with copies
of the reports of the bacteriologist.
During the year under review the total number of examinations
performed were:-
Bacteriological 270
Chemical 12