11
REPORT OF THE KING INSTITUTE, GUINDY
Coimbatore .—Pending the execution of the final and fully protected supply
from Siruvani, an advance supply from two hill streams was given to this munici--
pality and chlorination practised at the headworks about 30 miles away from the
town. The advisability of carrying out this important treatment at the Service
Reservoir in the town under the immediate supervision and control of the Health
Officer was pointed out.
Dindigul .—Chlorination was inefficient in October and the supply was of
poor quality.
Ellore.—The slow sand filters were again found to be functioning very
unsatisfactorily (vide last year's Annual Report).
Erode .—The mechanical filters here were working efficiently in August but
the results obtained in February 1930 were poor. Chlorination was inefficient.
Kumbakōnam .—The physical appearance of the water was again unsatis--
factory in November due apparently to defective application of the lime treatment.
This treatment was found to yield very good results in previous years (vide
last Annual Report).
Madras Corporation .—A decided improvement in the bacteriological purity
of the water as supplied was noticeable during the year although the production of
sulphuretted hydrogen and consequent smell and taste continued to be present.
For the first time in its history, the City was supplied with water, every drop of
which had been passed through the filters. This was made possible by using a
higher rate of filtration.
Masulipatam .—This supply (Pressure Jewel filters) showed some deteriora-
-tion over the previous year. Past experience has shown that such poor results
are usually obtained when the correct dose of alum is not applied.
Negapatam.—Serious deterioration in transit, such as would occur when
leaks in the pipe were present, occurred in March 1930, and the attention of the
Council was drawn to this possibility.
Ootacamund .—Samples from the old Ootacamund cistern have always been
found to be inferior to those from the other reservoirs. It receives its supply
through a submerged filter. The desirability of examining samples from this
source before and after filtration, at the time when the filters were next cleaned,
was pointed out and the Chairman was requested to inform the Institute
beforehand.
Periyakulam .—Poor results were again obtained although the filters had
been overhauled only last year. The average run of the filters is about a week.
Tanjore .— At the request of the Municipal Chairman samples from the
Sivaganga tank have been regularly examined. This tank is used for drinking
purposes by many people for religious reasons. But the water has always shown
excessive pollution and systematic chlorination has been recommended as an
essential measure of safety. No action appears to have been taken on this
recommendation. If, in addition to the protected supply, this source must be
used, the water should be pumped on to an elevated tank at the site and supplied
by taps after regular systematic chlorination.
Tuticorin .—The town derives its supply from two sources (1) the old
Korampallam tank water which is chlorinated. This is useless because it is
supplied to cisterns from which the public are allowed to draw water by ropes
and buckets, further the general quality of the water is bad. (2) Another
supply, the Thambaraparni scheme supplying a portion of the town by taps is of
very fair quality. It is desirable that this supply be introduced to the whole
town and the other scrapped.
(b ) Jail supplies .—The samples of untreated well waters at Cannanore,
Cuddalore and Rajahmundry were of fair quality. The wells at other jails
yielded heavily polluted waters. But chlorination was found to have been
carried out very efficiently during the year in all the jails.
( c) Railway Stations.
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