NationalLibraryOfScotland/medical-history-of-british-india huggingface dataset:
27
REPORT.
The samples on this occasion show a remarkable uniformity as regards quantity of bacterial
pollution but the kind varies from the least objectionable in the Storage Reservoir to the most
objectionable in the sample drawn from a tap in front of choultry near Railway Station.
The kind of pollution is notably worse in the Service Reservoir than in the Storage Reservoir.
The latter water may be said to be of quite good quality. The section of pipe leading to the
Station should be overhauled for leaks, as it is difficult to account for the presence of the suscep-
tible B. Schæfferi in any other way. The sample from the tap in front of the Post office is the
best of those from the Distributary System but it shows a distinctly higher total count. Chemi-
cally the superiority of the water in the Storage Reservoir over that supplied to the town is
shown by the quantity and kind of organic matter present. The former shows a smaller quantity
of vegetable origin, the latter a larger quantity of animal origin.
Chemical Analyses.
SAMPLE I.
SAMPLE IV.
Physical appearances.
Colour and
Transparency.
Yellowish and
hazy.
Yellowish and
hazy.
Smell.
None.
None.
QUANTITATIVE.
Total solids ...
...
...
...
...
Parts per 100,000 ...
2.400
2.600
Temporary hardness
...
...
...
Do.
...
Nil.
Nil.
Permanent hardness
...
...
...
...
Do.
...
0.500
0.500
Total hardness
...
...
...
Do.
...
0.500
0.500
Chlorine
...
...
...
...
...
...
...
Do.
...
0.284
0.284
Ammoniacal nitrogen
...
...
...
...
Do.
...
Trace.
Trace.
Albuminoid nitrogen
...
...
Do.
...
0.006
0.014
Oxygen absorbed (Tidy's Process) ...
...
...
...
Do.
...
0.062
0.062
Nitric nitrogen
...
...
...
...
...
Do.
...
Nil.
Nil.
QU A L I T A T I V E .
Nitrites
...
...
...
...
...
...
...
...
. . .
Nil.
Nil.
Sulphates
...
...
...
...
...
...
...
...
...
...
. . .
Nil.
Nil.
Phosphates
..
... .....
...
...
...
...
...
. . .
Nil.
Nil.
Iron, poisonous metals
...
... ...
...
...
. . .
. . .
. . .
. . .
Nil, nil.
Nil, nil.
28
OOTACAMUND.
WATER SAMPLES TAKEN—7TH, 8TH & 9TH MARCH 1912.
REMARKS.—All the resevoirs except Marlimund Reservoir were full, when samples were taken.
The level of water in the Marlimund Reservoir was about 17.05 feet. The
supply is constant. Rainfall, since last analysis is as follows :—
Name of reservoir.
INCHES.
Dodabetta
. . .
. . .
. . .
. . .
. . .
. . .
. . .
. . . 2.01
Ti ger Hi l l
. . .
. . .
. . . ...
...
...
...
. . . 2.01
Marlimund
...
...
. . .
. . .
. . . ...
. . .
... 0.46
Bacteriological Analyses.
SAMPLE I.—TAP IN FRONT OF DODABETTA UPPER RESERVOIR.
N u m b e r .
L a c t o s e .
S a c c h a r o s e .
D u l c i t e .
A d o n i t e . I nul i n.
V o g e s a n d P r o s k .
I ndol .
Mo t i l i t y .
Gr o u p .
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37º C.—7.
Bile salt lactose. medium.
+
-
1 tube of 20 cc.
...
...
1 . . .
1 + +
- - - - + -
IV B. Coscoroba
.. Group I, nil.
2 tubes of 10 cc. ...
...
. . .
1
1
2 + + - - - - + - IV
Do. ...
„
II, nil.
3
„ 5 c c . . . . . . . . . . . . .
. . . 3
3 + + - - - - + - IV
Do.
...
„
III, nil.
3
„
1 cc.
...
...
. . . ...
3
4 + + - - - - + - IV
Do.
„.
„ IV, nil.
3
„
. 1 c c . . . . . . . . . . . . .
. . .
3
5 + + - - - - + - IV
Do.
3 „ .01 cc. ...
... ... ... ...
. . . 3
6 +
+
- - - - + -
IV
Do.
7
+
+
- - - - + - IV
Do.
Fœcal bacilli in 10 cc. and upwards.
8
+ + - - - - + - IV
Do.
... Class I, nil.
9
+ + - - - - + - IV
Do.
„ I I , 1 0 .
No vibrios in 100 cc. 10 + + -
- -
- + - IV
Do.
„ III, nil.
SAMPLE II.—TAP IN FRONT OF DODABETTA L O W E R R E S E R V O I R .
Total colonies per cc. on agar at. 37º C.—2.
Bile salt lactose, medium.
+
-
1. tube of 20 cc. ... ...
...
1
No lactose fermenters.
2 tubes of 10 cc.
...
...
..
. . .
2
3„
5 cc. . . . . . . . . .
.. 3
3 „ 1. cc. ... ...
. . . 3
3
„ . 1 c c .
. . .
. . .
. . . .
... 3
3
.01 cc. ... ...
...
3
Fœcal bacilli not present in 60 cc.
No vibrios in 100 cc.
SAMPLE III.—DODABETTA PIPE LINE.
Total colonies per cc. on agar at 37º C.—15.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
...
...
...
. . .
. . .
1
No lactose formenters.
2 tubes of 10 cc.
...
...
...
. . .
. . .
2
3
„
5 c c . . . . . . . . . .
...
3
3 „
1 c c . . . . . . . . . .
...
3
3 „
. 1 c c .
. . .
. . .
. . .
. . .
. . .
3
3
„ . 0 1 c c .
. . .
. . .
3
Fœcal bacilli not present in 60 cc.
No vibrios in 100 cc.
29
SAMPLE IV.—TAP IN FRONT OF TIGER HILL RESERVOIR.
N u m b e r .
L a c t o s e . S a c c h a r o s e . S a c c h a r o s e .
S a c c h a r o s e . D u l c i t e .
A d o n i t e . I n u l i n e .
V o g e s a n d P r o s k .
I n d o l .
M o t i l i t y .
G r o u p .
Name of Bacilli.
Group and Remarks.
Total colonies per cc. on agar at 37° C.—379.
Bile salt lactose, medium
+ -
1 tube of 20 cc.
. . .
. . .
1
No lactose fermenters.
2 tubes of 10 cc. . . .
. . .
2
3 " 5 cc.
. . .
. . . 3
3 " 1 cc.
. . .
. . .
3
3 " .1 cc.
. . .
. . .
3
3 " .01 cc. . . .
. . .
3
Fœcal bacilli not present in 60 cc.
No vibrios in 100 cc.
SAMPLE V.—TIGER HILL PIPE LINE.
No lactose fermenters
.
Total colonies per cc. on agar at 37°C.—15.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
. . .
. . .
1
2 tubes of 10 cc.
. . .
. . .
2
3 " 5 cc.
. . .
. . .
3
3 " 1 cc. . . .
. . .
3
3 " .1 cc. . . .
. . .
3
3 " .01 cc.
. . .
. . .
3
Fœcal bacilli not present in 60 cc.
No vibrios in 100 cc.
SAMPLE V1.—TAP IN FRONT OF MARLIMUND RESERVOIR.
No lactose fermenters.
Total colonies per cc. on agar at 37° C.—52.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
. . .
. . .
1
2 tubes of 10 cc.
. . .
. . .
2
3 " 5 cc. . . .
. . .
3
3 " 1 cc. . . .
. . .
3
3 " .1cc. . . .
. . .
3
3 " .01 cc.
. . .
. . .
3
Fœcal bacilli not present in 60 cc.
No vibrios in 100 cc.
SAMPLE VII.—MARLIMUND PIPE LINE.
1
+ -
- - - -
+ - I B. Vesiculosus.
Total colonies per cc. on agar at 37° c.—40.
2 + - - - - - + - I
Do. . . . Group I, 10.
3 + - - - - - + - I
Do. . . .
" II, n i l .
+
- 4 + - - - - - + - I
Do. . . .
" III, nil.
5 + - - - - - + - I
Do. . . .
" IV, nil.
Bile salt lactose, medium.
6 + - - - - - + - I
Do. . . .
7 + - - - - - + - I
Do. . . .
1 tube of 20 cc. . . .
1
. . .
8 + - - - - - + - I
Do. . . .
Class 1, nil.
2 tubes of 10 cc. . . .
1
1
9 + - - - - - + - I
Do. . . .
" I I ,
n i l
.
3 " 5 cc. . . .
. . .
3 10 + - - - - - + - I
Do. . . .
" III, 10.
3
" 1 cc. . . .
. . .
3
3 " . 0 1 c c . . . .
. . .
3
3
" .01 cc. . . .
. . .
3
Fœcal bacilli in 10 cc. and upwards.
No vibrios in 100 cc.
8
30
SAMPLE VIII.—TAP IN FRONT OF KODAPPAM UND RESERVOIR.
Number.
L a c t o s e .
Sacchar ose.
Dulcite.
Adonite.
Inulin.
Vo g e s a n d P r o s k .
Indol.
Motility.
Group.
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37° C.—3.
Bile salt lactose, medium.
+
-
1 tube of 20 cc . . . .
1
. . .
1
+ -
- -
-
-
+ -
I
B. Vesiculosus.
2 tubes of 10 cc....
2
. . .
2
+ -
- -
-
-
+ -
I
Do. . . .
Group
I, 10.
3
" 5 cc. . . .
3
. . .
3
+ -
- -
-
-
+ -
I
Do. . . .
" II, nil.
3 " 1 cc. . . .
1
2
4
+ -
- -
-
-
+ -
I
Do. . . .
" I I I ,
n i l .
3 " .1 cc. . . .
. . .
3
5
+ -
- -
-
-
+ -
I
Do. . . .
IV, nil.
3 " . 0 1 c c . . . .
. . .
3
6
+ -
- -
-
-
+ -
I
Do. . . .
7 + -
- -
-
-
+ -
I
Do. . . .
Fœcal bacilli in 5 cc. and upwards
8 + -
- -
-
- + -
I
Do. . . .
Class I, nil.
9 + -
- -
-
-
+ -
I
Do. . . .
" II, nil.
No vibrios in 100 cc.
10 +
-
- -
-
-
+ -
Do. . . .
" III, 10.
SAMPLE IX.—TAP IN FRONT OF OOTACAMUND CISTERN.
Total colonies per cc. on agar at 37° C.—cannot be counted.
Bile salt lactose, medium.
+
-
1 tube of 20 cc. . . .
. . .
1
2 tubes of 10 cc. . . .
. . .
2
No lactose fermenters.
3 " 5 cc.
. . .
. . .
3
3 " 1 cc. . . .
. . .
3
3 " .1 cc. . . .
. . .
3
3
3 " .01 cc. . . .
. . .
Fœcal bacilli not present in 60 cc.
No vibrios in 100 cc.
REPORT.
As was the case last year at this season the Ootacamund water is in exceedingly good. order. The
different samples may be said to vary in excellence, but none of them could be called anything but, good.
The high total count in the Tiger Hill water is probably accidental. Chemically the waters are all good
except that from the Marlimund Lake which shows the usual high figures for organic matter of animal origin.
Chemical Analyses.
SAMPLE I.
SAMPLE II.
Physical appearances.
Colour and
Transparency.
Slightly yellowish
but clear.
Slightly yellowish
but clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids . . . Parts per 100,000 . . .
3.200
3.000
Temporary hardness . . .
Do. . . .
Nil.
Nil.
Permanent hardness . . .
Do. . . .
0.500
0.750
Total hardness . . .
Do. . . .
0.500
0.750
Chlorine . . .
Do. . . .
0.284
0.284
Ammoniacal nitrogen . . .
Do. . . .
0.002
Trace.
Albuminoid nitrogen . . .
Do. . . .
0.004
0.004
Oxygen absorbed ( Tidy's Process ) . . .
Do. . . .
0.062
0.031
Nitric nitrogen . . .
Do. . . .
Nil.
Nil.
QUALITATIVE.
Nitrites . . .
Nil.
Nil.
Sulphates . . .
Nil.
Nil.
Phosphates . . .
Nil.
Nil.
Iron, poisonous metals . . .
Nil, nil.
Nil, nil.
31
SAMPLE IV.
SAMPLE VI.
Physical appearances.
Colour and
transparency.
Slightly yellowish
but clear.
Slightly yellowish
but clear.
Smell.
None.
N o n e .
QUANTITATIVE.
2.600
3.000
Total solids . . .
Parts per 100,000 . . .
Nil.
Do. . . .
Nil.
Temporary hardness . . .
0.500
Do. . . .
1.000
Permanent hardness . . .
Do. . . .
0.500
1000
Total hardness . . .
0.284
Do. . . .
0.284
C h l o r i n e . . .
0.003
Do. . . .
0.003
Ammoniacal nitrogen . . .
0.009
Do. . . .
0.042
Albuminoid nitrogen . . .
0.062
0.139
Do. . . .
Oxygen absorbed ( Tidy's Process) . . .
Nitric nitrogen . .
Do. . . .
Nil.
Nil.
QUALITATIVE.
Nitrites . . .
Nil.
Nil.
Nil.
Nil
Sulphates . . .
Nil.
Nil.
Phosphates . . .
Nil, nil.
Nil, nil.
I r o n , p o i s o n o u s m e t a l s . . .
SAMPLE VIII.
SAMPLE I X .
Physical appearances.
Colour and
transparency.
Colourless and clear.
Colourless and clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids . . .
Parts per 100,000 . . .
2.600
3.600
Temporary hardness . . .
Do. . . .
Nil.
0.250
Permanent hardness . . .
Do. . . .
1.000
0.750
Total hardness . . .
Do. . . .
1.000
1.000
Chlorine . . .
Do. . . .
0.426
0.284
Do. . . .
Trace.
Ammoniacal nitrogen . . .
Trace.
Albuminoid nitrogen . . .
Do. . . .
0.003
0.007
Oxygen absorbed ( Tidy's Process) . . .
Do. . . .
0.062
0.031
Nitric nitrogen . . .
Do. . . .
Nil.
Nil.
QUALITATIVE.
Nitrites
.
.
.
Nil.
Nil.
Sulphates . . .
Nil.
Trace.
Phosphates . . .
Nil.
Nil.
Iron, poisonous metals . . .
Nil, nil.
Nil, nil.
33
SAMPLE V.—TAP IN FRONT OF POLICE STATION.
Number.
Lact ose. Sacchar ose.
Dul ci t e.
Adoni te. Innline.
V o g e s a n d P r o s k .
Indol
Mot i l i t y.
.Group
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37' C.—538.
Bile salt lactose, medium.
+
1 tube of 20 cc.
1
. . .
1 + + + + - +
- - III B. 67.
2 tubes of 10 cc.
2
. . . 2 + + - + -
- - - IV B. Gasoformans
Group I, ni l .
3 „ 5
c c .
3
. . . 3 + + + + - +
-
- III B. 67
..
,,
II, ni l .
3
„ 1 cc.
3
. . . 4 + + - +
- - - - IV B. Gasoformans
...
„ III, 3.
3
„ . 1 cc.
2
1
5
+ +
- +
- + - - IV B. Lactis ærogenes
...
„
IV, 7.
3 „ .01 cc.
1
2
6 + + - + -
- - - IV B. Gasoformans.
7 + +
- + -
- - - IV
Do.
8 + +
- + - + - - IV
B. Lactis ærogenes
Class I, nil.
Fœcal bacilli in .1 cc. and upwards.
9 + +
+ + -
+ - - III B. 67
„ II, 10.
No vibrios in 100 cc.
10 + +
- + -
- - - IV
B. Gasoformans
...
„ III, nil.
REPORT.
The water is not so good as it was at this time last year, the total count is higher, there are more fœcal
germs and a greater variety of these. All these point to extensive pollution of fairly recent origin, but that
is no more than one must expect from . river water. The results got with water from the settling tank are
very disappointing in actual fact and by contrast with what was attained last year. The total count has been
decreased. but is still much too high, while the number and kind of excremental germ shows no improvement.
There is farther a notable increase in the amount of organic matter, which is a remarkable result to get from
a settling tank. Samples III and IV are a little better, though nothing much to boast about while sample
V is much like the water of the settling tank. Chemically we have the abovenoted increase in organic
matter, so that the settling tank cannot be said to have improved the water. Some sedimentation and oxidation
must have taken place in the pipes, as the water drawn near the Port railway station is in much better order.
Chemical Analyses.
SAMPLE I.
SAMPLE II.
Physical appearances.
Colour and
Transparency.
White and opaque.
White and hazy.
Smell.
None.
None.
QUANTITATIVE.
Total solids
...
...
... Parts per 100,000
18.000
14.000
Temporary hardness ......
Do.
...
7.000
6.000
Permanent hardness ...
...
..,
Do.
...
2.000
2.000
Total hardness ...
...
...
Do.
...
9.000
8.000
Chlorine...
...
...
Do.
...
1.065
1.065
Ammoniacal nitrogen...
Do.
...
0'003
0'003
Albuminoid nitrogen ..
...
Do.
...
0.011
0'017
Oxygen absorbed ( Tidy' s Process) ...
Do.
...
0.080
0.126
Nitric nitrogen
...
...
...
Do.
..
Nil.
Nil.
Q U A L I T A T I V E .
Nitrites
...
...
...
... . ... ... ..
Nil.
Nil.
Sulphates
...
. . . . . . ... ... ... ...
Present.
Present.
Phosphates
...
...
...
...
...
...
Nil.
Nil.
Iron, poisonous metals
...
...
...
...
...
Nil, nil.
Nil, nil.
84
SAMPLE IV.
Physical appearances.
Colour and Transparency. Colourless and clear.
Smell.
None.
QUANTITATIVE.
Total solids . . .
Parts per 100,000 . . .
12.400
Temporary hardness . . .
Do. . . .
6.000
2.000
Permanent hardness . . .
Do. . . .
8.000
Total hardness . . .
Do. . . .
1.065
Chlorine . . .
Do. . . .
Trace.
Ammoniacal nitrogen . . .
Do. . . .
0.004
Albuminoid nitrogen . . .
Do. . . .
Oxygen absorbed (Tidy's Process) . . .
Do. . . .
0.070
Do. . . .
0.037
Nitric nitrogen . . .
QUA LITATIV E.
Nitrites . . .
Nil.
Sulphates . . .
Present.
Phosphates . . .
Nil.
Iron, poisonous metals . . .
Nil, nil.
36
REPORT.
The level of the water in the reservoir is lower than usual and is of distinctly inferior
quality. There are excremental germs in one-tenth of a cc. and though these are not of the
most objectionable type we would expect to find only the most resistant kinds present after so
long a spell of dry weather. Filtration has not improved the water but there is a moderate
improvement in the samples drawn from the more distant taps.
Chemically the water shows a greatly increased amount of organic matter, and this seems
to be of animal origin. Possibly this accounts for the persistence of the excremental germs of
class II. A good deal of this organic matter is removed by filtration or sedimentation, but
there is still too much left. Last year at this season attention was called to the remarkable rise
in the amount of chlorine in the water. The rise continued during the summer quarter and
reached a total of nearly thirteen parts per hundred thousand. The figure has now dropped to
eleven but is still very high as compared to what it was in March 1910, viz., 1.42. A variation
of this magnitude is difficult to account for.
Chemical Analyses.
SAMPLE I
SAMPLE. IV.
Physical appearances.
Colour and
Transparency.
Slightly yellowish and
opaque
Slightly yellowish and
hazy.
Smell.
None.
None.
QUANTITATIVE.
Total solids ...
...
...
...
...
Parts per 100,000 ...
35.000
31.000
Temporary hardness
...
...
Do.
. . .
7.000
6.500
Permanent hardness
...
Do.
...
5.000
5.500
Total hardness
...
...
Do.
...
12.000
12.000
Chlorine
...
...
...
...
...
Do.
11.005
11.005
Ammoniacal nitrogen
...
Do.
. . .
0.002
0.002
Albuminoid nitrogen
...
...
...
Do.
...
0.042
0.019
Oxygen absorbed ( Tidy's Process)
Do.
...
0.251
0.091
Nitric nitrogen
...
...
...
...
Do.
...
Nil.
Nil.
QUALITATIVE.
Ni trites
...
...
...
...
...
...
...
...
...
Nil .
Nil.
Sulphates
...
...
...
...
...
...
...
...
...
Present.
Present.
Phosphates
...
...
...
...
...
Nil.
Nil.
Iron, poisonous metals
...
..
...
...
...
...
...
Nil, nil.
Nil, nil.
38
Chemical Analyses.
SAMPLE I.
SAMPLE III.
Physical appearances.
Colour and
Transparency.
Colourless and clear.
Colourless and clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids . . .
Parts per 100,000 . . .
50.600
52.000
Temporary hardness . . .
Do. . . .
19.000
19.000
Permanent hardness . . .
Do. . . .
1.000
1.000
Total hardness . . .
Do. . . .
20.500
20.000
C h l o r i n e . . .
Do. . . .
4.260
4.260
Ammoniacal nitrogen . . .
Do. . . .
0.002
0.002
Albuminoid nitrogen . . .
Do. . . .
0.003
0.003
Oxygen absorbed (Tidy's Process) . . .
Do. . . .
0 . 0 3 3
0.033
Nitric nitrogen . . .
Do. . . .
0.125
0 . 1 5 0
Q U A L I T A T I V E .
Nitrites . . .
Nil.
Nil.
Sulphates . . .
Present.
Present.
P h o s p h a t e s . . .
Nil.
Nil.
Iron, poisonous metals . . .
Nil, nil.
Nil, nil.
40
REPORT.
The water at Vellore is not so good as it was at this time last year, and the results
are not a little conflicting. The unfiltered water can be only counted as fair and, if anything,
filtration has not improved it in that we see a more varied and more susceptible excremental flora
in the filtered water. Sample III from a tap in Saidapet is the worst of the lot, and in the
sample taken near the Cantonment Railway Station we have the curious result of an almost
vanishing number of foecal germs associated with a largely-increased total count.
Chemically the water shows more organic matter but it seems to be of vegetable origin.
Chemical Analyses .
SAMPLE I.
SAMPLE III.
Physical appearances.
Colour and
Transparency.
Yellowish but clear.
Slightly yellowish but
clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids ...
...
..
...
...
Parts per 100,000 ...
20.000
18.000
Temporary hardness
...
...
...
Do. . . .
8.500
7.000
Permanent hardness
...
...
...
Do.
...
1.500
2.000
Total hardness
...
...
...
Do.
...
10.000
9.000
Chlorine
...
...
...
...
Do.
. . .
1.065
1.065
Ammoniacal nitrogen
...
...
...
Do.
...
Trace.
Trace.
Albuminoid nitrogen
...
...
...
Do.
...
0 . 0 2 2
0.016
Oxygen absorbed (Tridy's Process)
...
Do.
...
0.200
0.167
Nitric nitrogen
..
...
...
...
Do.
...
Nil
.
Nil.
QUALITATIVE.
Nitrites
...
...
...
...
...
..
...
...
...
Nil.
Nil.
Sulph ates
...
...
...
...
...
...
...
... ...
Present.
Present.
Phosphates ...
...
...
...
...
...
...
...
Nil.
Nil.
Iron, poisonous metal
...
...
...
...
...
...
...
Nil, nil .
Nil. nil.
42
SAMPLE V.—TAP IN FRONT OF COLLECTOR ' S OFFICE.
Total colonies per cc. on agar at 37°—1,150.
C o l o n y n u m b e r .
Lact ose.
S a c c h a r o s e .
D u l c i t e . Adoni t e.
I nul i n.
Vo g a s a n d P r o s k .
Indol.
Mot i l i t y.
Group.
Name of Bacilli.
Group and
Remarks.
Bile salt lactose, medium.
+
-
1 tube of 20 cc. of water taken ...
...
1
. . .
1 + + -
+ - + - - IV B. Lactis ærogenes.
Group
I, nil.
2 tubes of 10 cc.
"
...
...
2
. . .
2 + + - + - + - - IV
D o .
" ,
II, nil.
3
" 5 cc.
" ...
...
3
. . .
3 + + - + - + - - IV
Do.
„
III, nil.
3 " 1 cc. " ... ...
3
. . .
4 + + - + - + - - IV
D o .
"„ IV, 10.
3
"
.1 cc.
" ...
...
3
. . .
5 + + - + - + - - IV
Do.
3
"
.01 cc.
" ...
...
2
1
6 + + - + - + - - IV
Do.
7
+ + - + - + - - IV
Do.
Class
I, nil.
Fæcal bacilli in .01 cc. and upwards.
No vibrios in 100 cc.
8 + + - + - + - + IV B. 102 . . . . . .
" II, 8
9 + + - - - + - - IV B. 112 . . . . . .
" III, nil.
10 + + - - - + - - IV
Do.
...
... Undetermined, 2.
SAMPLE VI.—TAP IN BASTION ROAD TERMINUS- (FOUNTAIN
No. 12).
1 + + + + - - - - III
B. Pneumoniæ
... Group
I, nil.
2 + + + + - - - - III
Do. . . .
" II, nil.
3 + + + + - - - - III
Do. . . .
" III, 10.
Total colonies per cc. on agar at 37° C.—
177.
+
-
4 + + + + - - - - III
Do. . . .
" IV, nil.
5 + + + + - - - + III
Do.
6 + + + + - - - - III
Do.
Bile salt lactose, medium.
1 tube of 20 cc. of water taken
...
1
. . .
7 + + + + - - - - III
Do. ...
8 + + + + - - - - III
Do.
2
. . .
9 + + + + - - - - III
Do.
" III, nil.
2 tubes of 10 cc.
"
3
. . .
10 + + + + – – – – III
Do.
... Undetermined, 1.
3
" 5 cc.
" ...
3
. . .
3
" .
1 cc.
"
...
2
1
3
"
.1 cc
"
...
. . .
3
3
"
.01 cc.
" ...
Fœcal bacilli in • 1 cc. and upwards.
No vibrios in 100 cc.
REPORT.
Kurnool after a temporary reformation, noted at this season last year, has reverted to the evil conditions
of 1910. The water of the Canal seems unnecessarily bad considering that there had been no rain and the
Canal was not flooded. No improvement is brought about by the settling tanks. Presumably these tanks
are meant to be filled and emptied alternately, but the bad condition of the water in both of them seems to
indicate that they are not being so used. The results given by the filtered water form the only redeeming
feature of the set. To produce such an improvement the filters must have been in good order, but alas the
condition of the pipes was such as to spoil the best of water and the sample drawn opposite the Collector's
Office is just as bad as the untreated Canal water. At one time or another all the sections of the Kurnool
Water System have given good results, it is a pity that they can't be got to work together. Chemically the
water is as -usual, and is delivered in a very satisfactory condition.
Chemical Analyses.
SAMPLE I.
SAMPLE III.
Physical appearances.
Colour and
transparency.
White and opaque.
White and opaque.
Smell.
None.
None.
QUANTITATIVE.
Total solids
...
...
...
Parts per 100,000
2 3 . 0 0 0
21.000
Temporary hardness ...
...
..
Do.
...
8.500
8.000
Permanent hardness ...
...
...
...
Do.
1.500
2.000
Total hardness ...
...
...
...
Do.
...
1 0 . 3 0 0
10.000
Chlorine
...
...
...
...
Do.
...
2.840
2 . 8 4 0
Ammoniacal nitrogen ...
...
...
Do.
...
0.002
0.003
Albuminoid nitrogen ...
...
Do.
...
0.012
0.014
Oxygen absorbed (Tidy's Process) ...
...
Do.
...
0.013
0.092
Nitric nitrogen
...
...
...
Do.
Nil.
Nil.
QUALITATIVE.
Nitrites
...
...
...
...
...
...
...
...
Nil.
Nil.
Sulphates
...
...
...
...
...
...
Present.
Present.
Phosphates ...
...
...
...
.
...
Nil.
Nil.
Iron, poisonous metals
...
...
...
Nil, nil.
Nil, nil.
SAMPLE II.
SAMPLE VI.
Physical appearances.
Colour and
transparency.
White and hazy.
Colourless and clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids
......
Parts per 100,000 ...
19.000
18.400
Temporary hardness ...
...
...
Do.
...
8.000
8.000
Permanent hardness ...
...
...
Do.
...
2.000
2.000
Total hardness...
D o .
10.000
10.000
Chlorine
...
...
...
...
Do.
...
2.840
2.840
Ammoniacal nitrogen
...
...
...
Do.
...
0.002
Trace.
Albuminoid nitrogen
D o .
0.008
0.003
Oxygen absorbed (Tidy's Process)...
...
Do.
0.082
0.051.
Nitric nitrogen
... ...
...
Do.
Nil .
Nil .
QUALITATIVE.
Nitrites
. . . ...
Nil.
Nil.
Sulphates ...
... ...
...
...
...
. . .
Present.
Present.
Phosphates ......
... ...
... ...
...
Nil.
Nil.
Iron, poisonous metals
...
...
... ...
...
...
Nil, nil.
Nil, nil.
Report on the Town Water-Supplies of the Madras Presidency
for the Quarter ending 30th June 1912, being Part II of
Appendix IV to the Annual Report of the King Institute of
Preventive Medicine, Madras, for the year 1912.