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90
(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 83 of raw waters and 133 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 tay the Health Department.
Weekly samples have been submitted to the area Public Health
Laboratory, for bacteriological examination. The premises from
which 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 277
Chemical 11