NationalLibraryOfScotland/medical-history-of-british-india huggingface dataset:
38
REPORT.
The river water shows all the features expected in times of flood. There are a great number of organisms,
only a small proportion of these or of animal origin, and these latter are of the more resistant varieties. A
considerable reduction in numbers has taken place in consequence of filtration, but a large number of new
species have been added to the fœcal germs present. These have probably been derived from the post-filtration
passages. The samples taken from the distributary system show marked improvement but are characterised
by the considerable number of species of fœcal germs present in them.
Chemically the water is very fair indeed. Filtration and passage through the pipes have reduced the
organic matter but rendered the water slightly harder.
Chemical Analyses.
SAMPLE I.
SAMPLE IV.
Physical appearances.
Colour and
Transparency.
White and Opaque.
Colourless and
Clear.
Smell.
None.
None.
Q U A N T I T A T I V E .
Total solids
..
..
.. .. Parts per 100,000 ..
26.000
31.600
..
Temporary hardness ..
..
..
Do.
..
12.000
14.500
Permanent hardness ..
..
..
Do.
. .
1.000
1.000
Total hardness ..
..
..
..
Do.
..
13.000
15.500
Chlorine
..
..
. . . .
D o .
. .
1.420
2.307
Ammoniacal nitrogen ..
..
. .
Do.
. .
0.004
0.003
Albuminoid nitrogen ..
..
..
D o .
. .
0.009
0.004
Oxygen absorbed (Tidy's Process) ..
D
o .
. .
.
0.106
0.026
Nitric nitrogen ..
..
..
..
Do.
..
Nil.
Trace.
QUALITATIVE.
Nitrites
..
..
..
..
..
..
..
Nil
Nil.
Sulphates
..
..
.. ..
..
..
Present.
Present.
Phosphates
..
..
..
..
.
.
.. ..
Nil.
Nil.
Iron, poisonous metals ..
..
..
..
..
..
Nil.
N i l .
39
CUDDAPAH.
WATER SAMPLES TAKEN—9TH JANUARY 1910.
REMARKS.—The Bugga river was dry when samples were collected. There was no rain since last analysis.
Bacteriological Analyses.
SAMPLE I.— WATER FROM ABOVE THE INFILTRATION GALLERY.
C o l o n y n u m b e r .
Lactose.Sacchar os e.Dulcite.Adoni t e.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°−930.
Bile salt lactose, medium.
+
−
1 tube of 20 cc. of water taken
1
1
+ + + + − + − − III
B. 67
Group I, nil.
2 tubes of 10 cc.
2
2 + + + + − + − − III
Do.
" II, nil.
3 " 5 cc.
2
1
3 + + + + − + − − III
Do.
" III, 10.
3 " 1 cc.
2
1
4 + + + + − + − − III
Do.
" IV, nil.
3 " ·1 cc.
3
5 + + + + − − − − III
B. Pneumoniæ.
3 " ·01 cc.
3
6 + + + + − + − − III
B. 67.
7 + + + + − + − − III
Do.
Fœcal bacilli in 1 cc. and upwards.
8 + + + + − + − − III
Do.
Class I, nil.
9 + + + + − + − − III
Do.
" II, 10.
No vibrios in 100 cc.
10 + + + + − + − − III
Do.
" III, nil.
SAMPLE II.—SUCTION WELL OF THE INFILTRATION GALLERY.
1
+ + − + − + − − IV
B. Laotis ærogenes
Group 1, 7.
2 + − − − − − + −
I B. Vesiculosus
" II, nil.
Total colonies per cc. on agar at 37°—1,360.
3 + − − − − − + +
I B. Grunthal
" III, 1.
4 + − − − − − + −
I B. Vesiculosus
" IV, 2.
Bile salt lactose, medium.
+
−
5 + − − − − − + −
I
Do.
6 + + − + − + − − IV
B. Lactis ærogenes .
7 + + + + − + − − III
B. 67.
I tube of 20 cc. of water taken
1
8 + − − − − − + −
I B. Vesiculosus
Class I, nil.
2 tubes of 10 cc.
2
9 + − − − − − + +
I
B. Grunthal
" II, 3.
3 " 5 cc.
2
1
10 + − − − − − − −
I
B. Mutabilis
" III, 7.
3 " 1 cc.
3
3 " ·1 cc.
3
3 " ·01 cc.
3
Fœcal bacilli in ·1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—FORM A. TAP IN YERRAMUKKUPALLI.
1
+ − − − − − + +
I B. Grunthal
Group 1, 7.
2 + − − − − − + −
I
B. Vesiculosus
" II, nil.
Total colonies per cc. on agar at 37°—1,220.
3 + + − − − − + − IV
B. Coscoroba
" III, 2.
4 + − − − − − + −
I B. Vesiculosus
" IV, 1.
Bile salt lactose, medium.
+
−
5
+ − − − − − + −
I
Do.
6 + − − − − − + −
I
Do.
7
+ + + + − + + − III
B.76.
1 tube of 20 co. of water taken
1
8 + − − − − − + +
I B. Grunthal
Class I, nil.
2 tubes of 10 cc.
2
9 + − − − − − − −
I B. Mutabilis
" II, 2.
3 " 5 cc.
3
10 + + + + − − + − III
B. 66
" III, 7.
3 " 1 cc.
3
Undetermined
, 1.
3 " ·1 cc.
2
2
3 " ·01 cc.
3
Fœcal bacilli in ·1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE IV.—TAP FROM NORTHERN CORNER IN GEDDY BAZAAR ROAD.
1
+ − − − − − − −
I B. Mutabilis
Group I, 6.
2 + − − −
−− + −
I
B. Vesioulosus
" II, nil.
Total colonies per cc. on agar at 37°—1,430.
3 + − − − − − + −
I
Do.
" III,
nil.
4 + − − − − − + −
I
Do.
" IV, 4.
Bile salt lactose, medium.
+
−
5 + + − − − + − + IV
B. Cloacæ.
6 + + − − − − + − IV
B. Coscoroba.
7
+ − − − − − + −
I
B. Vesiculosus.
1 tube of 20 cc. of water taken
1
8 + − − − − − + −
I
Do.
Class I, nil.
9 + + − − − + − + IV
B. Cloacæ
" II, 1.
2 tubes of 10 cc
2
10 + + − − − + − − IV
B. 112
" III, 8.
3 " 5 cc.
3
Undetermined,
1.
3 " 1 cc.
3
3 " ·1 cc.
2
1
3 " ·01 cc.
3
Fœcal bacilli in ·1 cc. and upwards.
No vibrios in 100 co.
40
REPORT.
This quarter the river water is not quite so good as last, but still there is not very much to complain
about. With one fœcal germ to the cc. and only two of the more resistant types present the water for a
river one is above the average. After passing through the Infiltration Gallery the water is very much worse.
There are ten times as many fœcal germs and the variety of species is suspiciously various. The post filtration
passages must be pretty dirty to produce such a result. In sample IV drawn from a tap in the northern
quarter, Geddy Bazaar Road, we look in vain for any improvement on the last mentioned. Although the
fœcal germs present are not in themselves objectionable there are far too many of them and too many
kinds are present. The water from a tap in Yerramukkupalli is a shade better but is not so good as the raw
river water, in that it has a great variety of fœcal germs present.
Chemically the water is very good and soft, and leaves little to be desired.
Chemical Analyses.
SAMPLE I.
SAMPLE IV.
Physical appearances.
Colour and
Transparency.
Slightly yellowish
but Clear.
Slightly yellowish
but Clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids ..
..
..
..
Parts per 100,000 ..
9.000
9.400
Temporary hardness ..
..
..
Do.
..
2 . 0 0 0
2.000
Permanent hardness ..
. .
..
Do.
..
2.500
2.500
Total hardness
..
.. ..
Do.
..
4.500
4.500
Chlorine
..
. . . . . .
Do.
..
0.710
0.710
Ammoniacal nitrogen ..
. .
..
D o .
..
0 . 0 0 7
0.007
..
Albuminoid nitrogen
..
Do.
.
. .. ..
Trace.
0.003
Oxygen absorbed (Tidy's Process)
Do.
..
0.012
0 . 0 1 3
Nitric nitrogen
.. .. ..
Do.
..
0 . 0 2 5
0.025
QUALITATIVE.
Nitrites
..
. .
. .
. .
. .
. .
. .
Nil.
Nil.
.
.
. .
Sulphates
.. ..
..
.. .. ..
Trace.
Trace.
Phosphates ..
..
.. .. .. .. ..
Nil.
Nil.
Iron, poisonous metals ..
..
.. .. .. ..
Nil.
N i l .
41
ADÓNI
WATER SAMPLES TAKEN—10TH JANUARY 1910.
REMARKS.—There was no rain since last report. The tank now contains about 7 feet of water.
Bacteriological Analyses.
SAMPLE I—FROM THE SPRING.
Colony nuber.Lactose.Sa c c ha r os e .Dalcite.Adoni t e.Inulin. V o g e s a n d P r o s k . Indol.Mot i l i t y.Group
Bacillus
Group and
Remarks.
Total colonies per cc. on agar at 37°—3,120.
Bile salt lactose, medium.
+
-
1 tube 20 cc.
1 of
1
1
+ - - - - - + - IV B B. Lactis ærogenes.
2 tubes of 10 cc.
2
2 + - - - - - + -
I B. Vesiculosus.
3 „ 5 cc.
3
3 + - - - - - + -
I B. Mutabilis
Group I, 7.
3 „ 1 cc.
3
4 + - - - - - - - IV B. Lactis ærogenes.
„ II, nil.
3 „ · 1 c c .
3
5 + - - - - - + - IV
Do.
„ III, nil.
3 „ · 0 1 c c .
1
2
6 + - - - - - + -
I B. Mutabilis
„ IV, 3.
Fœc a l b a c i l l i i n · 1 c c a n d u p wa r d s c c
7 + - - - - - + -
I
Do.
8 + - - - - + + -
I
Do.
Class I, nil.
9 + -
-
- -
-
+ -
I B. Vesiculosus
„ II, 3.
No vibrios in 100 cc.
10
+
- -
-
- - - -
I
Do.
,, III, 7.
SAMPLE I—FBOM THE TANS.
1
+
- - - - -
+ -
I B. Vesiculosus.
2
+ - - - - - + -
I
Do.
Total colonies per cc. on agar at 37°—2,600.
3 + - - - - - + -
I
Do.
Group I, 10.
4 + - - - - - + -
I
Do.
,, II, nil.
Bile salt lactose, medium.
+
-
5 + - - - - - + -
I
Do.
„ III, toil.
1 tube of 20 cc.
1
6 + - - - - - - -
I B. Mutabilis
,, IV, nil.
2 tubes of 10 cc.
2
7 + - - - - - - -
I
Do.
3 „ 5 cc.
3
8 + - - - - - + -
I B. Vesiculosus
Class I, nil.
3 „ 1 cc. ,,
2
1
9 + - - - - - + -
I
Do.
„ II, nil.
3 „ ·1 cc.
1
2
10 + - - - - - + -
I
Do.
„ III, 10.
3 „ ·01 cc
3
F œ c a l b a c l l i i n 1 c c . a n d u p w a r d s
No vibrios in 100 cc.
SMPLE III.—FILTER RESERVOIR (FILTERED WATER).
1 +
- - - - - +
-
I B. Vesiculosus.
Total colonies per co. on agar at 37°—2,800.
2 + - - - - - + -
I
Do.
Group I, 10.
3
+ - - - - - + -
I
Do.
,, II, nil
Bile salt lactose, medium.
+
-
4+ - - - - - - -
I B. Mutabilis
„ III, nil.
1 tube of 20 cc.
1
5 + -
- -
-
- + -
I B. Vesiculosus
„ IV, nil.
2 tubes of 10 cc.
2
6 + - - - - - + -
I
Do
3 „ 5 cc.
3
7
+ - - - - - + -
I
Do.
Class I, nil.
3 „ 1 cc.
1
2
8
+ - - - - - + -
I
Do.
,, II nil.
3 „ ·1 cc.
3
9
+ - - - - - + +
I
?
„ III, 9.
3 „ · 0 1 c c
1
2
10 + - - - - - - -
I
B. Mutabilis.
Undetermined,
Fœcal bacilli in 5 cc. and. upwards.
1.
No vibrios in 100 cc
11
43
CONJEEVERAM.
WATER SAMPLES TAKEN—18TH & 19TH JANUARY 1910.
REMARKS.— There has been 2·66 inches of rain since last analysis. The river bed of the Vagavati is now dry. The supply is
intermittent.
Bacteriological Analyses .
SAMPLE I.—UNFILTERED WATER FROM SPRING IN THE BED OF
THE RIVER.
Number.Lactose.Sacchar os e. Dul ci t e.Adoni t e.Inulin.
Vo 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. agar at 37°—1,880.
Bile salt lactose, medium.
+
−
1 tube of 20 cc. of water taken
1 1
+ + − + − + −
−
IV B. Lactic ærogenes
Group I, nil .
2 tubes of 10 cc. „
2
2
+ +
−
+
−
+
− − IV
Do.
„ II, nil.
3 „ 5 cc. „
3
3
+ + +
+ − + − − III B. 67
„ III, 3.
3 „ 1 cc. „
3
4
+ +
− + −
+
− − IV B. Lactic ærogenes
„ IV, 7.
3 „ ·1 cc. „
3
5
+ + +
+
−
+
− − III B. 67
3 „ ·01 cc. „
3
6
+ + + +
−
+
− − III Do.
7 + + − + −
+
− − IV B. Lactic ærogenes
Class I, nil .
Fœcal bacilli in ·01 cc. and upwards.
8 + +
− +
− +
− − IV
Do.
„ II, 10.
9 + +
− +
− +
− − IV
Do.
„ III, nil.
No vibrios in 100 cc.
10
+ +
− + − + − − IV
Do.
SAMPLE II.—SUCTION WELL—FILTERED WATER.
1
+
+
− + −
+
−
+
IV B. 102
Group I, nil.
2 +
+
− + − + − + IV
D o .
„ II, nil.
Total colonies per cc. on agar at 37°—340.
3
+
+
− + − + − + IV
Do.
„ III., nil.
4 +
+
−
+ −
+
−
+
IV
Do.
„ IV, 10.
Bile salt lactose, medium.
+
−
5 + + −
+
− + − + IV
Do.
6
+
+ −
+
− +
+ +
IV B. 115
Class I, nil.
7 +
+
− + − + − + IV B. 102
„ II, 9
1 tube of 20 cc of water taken
1
8
+ +
− + −
+
− + IV
Do.
„ III, nil.
2 tubes of 10 cc. „
1
1
9
+
+ − + − + − + IV
Do.
Undetermined,
1.
3 „ 5 cc. „
2
1
10 + + −
+
−
+
−
+
IV
Do.
3 „ 1 cc. „
3
3 „ ·1 cc. „
3
3 „ ·01 cc. „
3
Fœcal bacilli in 5 cc. and upwards
.
No vibrios in 100 cc.
SAMPLE III.—A TAP IN WESTERN CORNER ADJOINING THE
RESERVOIR.
1
+ +
− −
− −
+ +
IV
B. 106
Group I, nil.
2
+ +
− − − −
+ +
IV
D o .
„ II, nil.
3
+ +
− − − −
− IV Coscoroba
„ III, nil.
Total colonies per cc. on agar at 37°—520.
4
+ +
− − − −
+
− IV
D o .
„ IV, 10
5
+ +
− − − −
+
− IV
D o .
Bile salt lactose, medium.
+ -
6
+ +
− − − −
+
− IV
Do.
7
+ +
− − − −
+
− IV
Do.
Class I, nil.
8
+ +
− − − −
+ +
IV B. 106.
„ II, 10.
1 tube of 20 cc. of water taken
1
9
+ +
− − − −
+ +
IV
Do.
„ III, nil .
2 tubes of 10 cc. „
2
10
+ +
− − − −
+
− IV Coscoroba.
3 „ 5 cc. „
1
2
3 „ 1 cc. „
3
3 „ ·1 cc. „
3
3 „ ·01 cc. „
3
Fœcal bacilli in 10 cc. and upwards.
No. vibrios in 100 cc.
SAMPLE IV.—EASTERN CORNER NEAR SEEVARAM TOLL-GATE.
1
+
− − − − − − −
I B. Mutabilis
Group I, 9.
2 + − − − − − − −
I
Do.
„ II, nil.
Total colonies per cc. on agar at 37°—860.
3 + − − − − − − −
I
Do.
„ III, nil.
4
+
− − − − − − −
I
Do.
„ IV, 1.
Bile salt lactose, medium.
+
−
5
+ +
− + − + − − IV B. Lactis ærogene
s
6 + − − − − − − −
I B. Mutabalis.
7 + − − − − − − −
I
Do.
Class I, nil.
1 tube of 20 cc. of water taken
1
8 + − − − − − − −
I
Do.
„ II, 1.
2 tubes of 10 cc. „
2
9 +− − − − − − −
I
Do.
„ III, 9.
3 „ 5 cc. „
3
10
+
− − − − − − −
I
Do.
3 „ 1 cc. „
1
2
3 „ ·1cc.
„
3
3 „ ·01 cc. „
3
Fœcal bacilli in 5 cc. and upwards.
No vibrios in 100 cc.
44
REPORT.
The analytical history of the Conjeeveram water-supply is a fairly consistent one. We have seen on most
occasions that the river water is subject to pollution which may be quite extensive, but that filtration and
passage through the distributary pipes have resulted in very marked improvement. These conditions hold
good on the present occasion. The river water is greatly polluted, and although the pollution is not recent
a n d d a n g e r o u s , i t i s a p i t y t h a t m o r e c a n n o t b e d o n e t o p r e v e n t t h i s . T h e w a t e r f r o m t h e s u c t i o n w e l l a n d
from the distributary system is very much better and can be regarded as very fairly satisfactory.
Chemically an almost constant feature has been the improvement in this water by filtration. This
improvement is probably not so much due to filtration as to admixture with a purer water derived from the
deeper layers of the river bed. The very high figure for free ammonia in the river water is probably
accidental. The water from the suction well is quite satisfactory.
Chemical Analyses.
SAMPLE I.
SAMPLE IV.
Physical appearances.
C o l o u r a n d
Transparency.
White and opaque. Slightly yellowish but
clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids ..
..
..
.. Parts per 100,000 ..
35.400
19.000
Temporary hardness ..
..
..
Do.
..
1 4 . 0 0 0
6.000
Permanent hardness ..
..
..
Do.
. .
1.000
2.000
Total hardness
..
.. ..
Do.
..
1 5 . 0 0 0
8 . 0 0 0
Chlorine
.. .. ..
..
Do.
. .
4.260
2.130
Ammoniacal nitrogen ..
..
..
Do.
..
0.022
0.004
Albuminoid nitrogen .. .. ..
Do.
..
0.010
0.003
Oxygen absorbed (Tidy's Process)
Do.
. .
0 . 1 0 0
0.008
Nitric nitrogen
..
..
..
Do.
. .
Nil.
0.025
QUALITATIVE.
Nitrites
.. .. .. .. .. .. ..
Nil.
Nil.
Sulphates
..
..
.. .. .. ..
..
Present.
Present.
Phosphates ..
..
.. .. ..
..
..
Nil.
Nil.
Iron, poisonous metals ..
..
.. .. .. ..
Nil.
Nil.
45
MADURA.
WATER SAMPLES TAKEN-24TH JANUARY 1910.
REMARKS.—There was a small flow of water in the Vaigai at the time when samples were taken. There has been about 16·87
inches of rain since last report.
Bacteriological Analyses .
SAMPLE I.—FROM THE RUNNING WATER ON THE VAIGAI RIVER.
C o l o n y n u m b e r . Lact ose.Sa c c h a r o s e . Dul ci te.Adoni te. I n u l i n .
V o g e s a n d P r o s k .
Indol.Mot i l i t y.Group.
Bacillus.
Group and
Remarks.
( a) Total colonies per cc. on agar at 37°—Countless.
( b) Bile salt lactose, medium.
+
−
1 tube of 20 cc. of water taken
1
1
+ +
− − −
+
−
+
IV B. Cloacæ
Group I, 1.
2 tubes of 10 cc. „
2 2
+
− − − −
+ + +
I ?
„ II, nil .
3 „ 5 cc. „
3
3
+ +
− − −
+
−
+
IV B. Cloacæ
„ III, nil .
3 „ 1 cc. „
3
4
+ +
−
+
−
+
−
+
IV B 102.
„ IV, 9.
3 „ ·1 cc. „
3
5
+ +
−
+
−
+ +
− IV B. 116.
3 „ ·01 cc. „
3
6
+ +
−
+
−
+
−
+
IV B. 102.
7 + + − − −
+
−
+
IV B. Cloacæ
Class I, nil.
(c ) Fœcal bacilli in ·01 cc. and upwards.
8
+ + − − −
+
−
+
IV
Do.
„ II, 2.
9
+ +
− − −
+
−
+
IV
Do.
„ III, 6.
No vibrios—in 100 cc.
10
+ +
− − −
+
−
+
IV
Do.
Undetermined,
2.
SAMPLE II.—TAP OPPOSITE TO PUMPING STATION—FILTERED
WATER.
1
+
−
+
−
−−
+ +
II B. Coli communis
Group I, 1.
2
+
−
+
− − −
+ +
I I
Do.
„ II, 9.
3
+
−
+
− − −
+ +
II
Do.
„ III, nil.
( a ) Total colonies per cc. on agar at 37°—5,040.
4
+
−
+
− − −
+ +
II
Do.
„ IV, nil.
5
+
−
+
− − −
+
−
II B. Sobæfferi.
(b) Bile salt lactose, medium.
6
+
−
+
− − −
+ +
II B. Coli communis.
+
−
7
+
−
+
− − −
+ +
II
Do.
Class I, 9.
8
+
−
+
− − −
+ +
II
Do.
„ II, nil.
9
+
−
+
− − −
+ +
II
Do.
„ III, 1.
1 tube of 20 cc. of water taken
1
10
+
− − − − −
+ +
I B. Grunthal.
2 tubes of 10 cc. „
2
3 „ 5 cc. „
3
3 „ 1 cc. „
3
3 „ ·1 cc. „
3
3 „ ·01 cc. „
3
(c) Fœcal bacilli in 10 cc. and upwards.
(d) No vibrios in 100 cc.
SAMPLE III.—TAP IN MANGAMMAL CHATTRAM.
1
+
− − − −
−
+ +
I B. Grunthal
Group I, 10.
2
+
− − − − −
+ +
I
Do.
„ II, nil.
(a) Total colonies per cc. on agar at 37°—3,780.
3
+
− − − − −
+ +
I
Do.
„ III, nil.
4
+
− − − − −
+ +
I
Do.
„ IV, nil.
(b) Bile salt lactose, medium.
5
+
− − − − −
+ +
I
Do.
+
−
6
+
− − − − −
+ +
I
Do.
7
+
− − −
− −
+ +
I
Do.
Class I, nil.
8
+
− − − − −
+ +
I
Do.
„ II, nil .
9
+
− − − − −
+ +
I
Do.
„ III, 10.
1 tube of 20 cc. of water taken
1
10
+
− − − − −
+ +
I
Do.
2 tubes of 10 cc. „
2
3 „ 5 cc. „
1
2
3 „ 1 cc. „
2
1
3 „ ·1 cc. „
3
3 „ ·01 cc.„
3
( c) Fœcal bacilli in 1 cc. and upwards.
(d) No vibrios in 100 cc.
SAMPLE IV.—FROM A PILLAR FOUNTAIN NEAR BIG TEPPA
KULAM.
Total colonies, per cc. on agar at 37°—6,930.
1
+ +
−
+
− −
+ +
IV B. 100
Group I, 4.
2
+
− − − −
+ + +
I
„ II, 2.
Bile salt lactose, medium.
3
+
− − − − −
+ +
I B. Grunthal
„ III, nil .
+ −
4
+
−
+
− − −
+ +
II
B. Coli Communis
„ IV, 4.
5
+
−
+
− − −
+ +
II
Do.
6
+
− − − − −
+ +
I
B. Grunthal
Class I, 2.
1tube of 20 cc. of water taken
1
7
+ +
− − − −
+
−
IV B. Coscoroba
„ II, 2.
2 tubes of 10 cc. „
2
8
+ +
− − − − − −
IV B. 111
„ III, 3.
3 „ 5 cc. „
3
9
+ +
− − −
+ +
−
IV B. 114
Undetermined.
3 „ 1cc „
3
10
+
− − − − − − −
I B. Mutabilis
3.
3 „ ·1
cc. „
3
3 „ ·01 cc. „
3
Fœcal bacilli in 5 cc. and upwards.
No vibrios in 100 cc.
12
46
REPORT.
The Madura water-supply continues to be in a very unsatisfactory state. The river water shows a very
high total count and fœcal germs in one hundredth of a cc. NÓne of the varieties present however belong to
the susceptible Class I, so that on this occasion the evidence of recent pollution is not so marked.
The filtered water, however, though containing many fewer fœcal germs has a preponderating proportion
of the most susceptible kinds, so that there has been recent and dangerous pollution of the water. It is
evident that the management or the surroundings of the filters leaves much to be desired.. The water from
the tap in Mangammal chattram is much better though it contains more fœcal germs, there being only one
very highly resistant type present. The water from the Pillar Fountain near Big Teppakulam is the worst
of the lot. With eight different varieties of faecal germs including a member of Class I, the water must have
been extensively and recently polluted.
Chemically the filtered water shows no specially objectionable features,
Chemical Analyses.
SAMPLE I.
SAMPLE I V .
Physical appearances.
Colour and
Transparency.
Yellowish and
opaque.
Yellowish but
clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids
Parts per 100,000
58·000
54·000
Temporary hardness
Do.
18·500
16·500
Permanent hardness
Do.
0·500
2·500
Total hardness
Do.
19·000
19·000
Chlorine
Do.
9·585
9·585
Ammoniacal nitrogen
Do
0·003
0·003
Albuminoid nitrogen
Do.
0·018
0·004
Oxygen absorbed ( Tidy's Process)
Do.
0·146
0·069
Nitric Nitrogen
Do.
Nil.
Trace.
QUALITATIVE.
Nitrites
Nil.
Nil.
Sulphates
Present.
Present.
Phosphates
Nil.
Nil.
Iron, poisonous metals
Nil, nil.
Nil, nil.
47
DINDIGUL.
WATER SAMPLES TAKEN—24TH & 25TH JANUARY 1910.
REMARKS.—There has been about 5·92 inches of rain since last analysis. The supply is intermittent.
Bacteriological Analyses.
SAMPLE I.—FROM THE DEEP WELL.
Col ony number .Lact ose.Sacchar ose.Dul ci t e.Adonite.Inulin.Vo g e s a n d P r o s k . Indol.Mot i l i t y.
G r o u p .
Name of Bacilli.Group and Remarks.
Total colonies per cc. on agar at 37°—3,150.
Bile salt lactose, medium.
+
−
1 t u b e o f 2 0 c c . o f w a t e r t a k e n
1
1 + + − − − + − +
I V B. Cloæ
Group I, 1.
2 tubes of 10 cc.
„
2
2 + + − − − + − + IV
Do.
„
I,
nil .
3 „ 5 cc. „
3
3
+ + − − − − + + IV B. 106
„
I,
nil.
3 „ 1 cc. „
3
4 + +
− − − + − + IV B. Cloacæ
„
IV,
9.
3 „·1 cc. „
3
5 + + − − − + + + IV B. 113.
3 „·01 cc. „
3
6
+ + − − − + − + IV B. Cloacæ
Class I, nil.
7 + + − − − − − + IV B. 109
„ II, 1
Fœcal bacilli in ·01 cc. and upwards.
8
+ - − − − − − −
I
B. Mu t a b i l i s
„ III, 8.
9 + + − − − − − + IV B. 109
U n d e t e r m i n e d , 1 .
No vibrios in 100 cc.
10 +
+ − − − − − + IV B. 109.
SAMPLE II.—COLLECTING CHAMBER OF THE INFILTRATION GALLERY.
1 + + − + − + − + IV B. 102
Group I, nil.
2
+ + − + − + − + IV
Do.
„ II, nil.
Total colonies per cc. on agar at 37°—60.
3 +
+ − + − + − − IV B. Lactis ærogenes
„ II, nil.
4 + +
− − − − − + IV B. 109
„ IV, 10.
Bile salt lactose, medium.
+
−
5 + + − + − − − + IV
?
6 + + − + − + − - IV
B . L a c t i s æ r o g e n e s
Class I, nil.
7 + + − + − + − + IV B. 102
„ II, 8.
1 tube of 20 cc. of water taken
1
8 + + − + − + − + IV
Do.
„ III, 1.
2
tubes
fo
10
cc.
„
2
9 + + − + − + − + IV
Do.
Undetermined, 1.
3 „ 5 cc.
„
3
10 + + − + − + − + IV
Do.
3 „ 1 cc.
„
3
3 „ ·1 cc.
„
3
3 „ ·01 cc.
„
3
Fœcal bacilli in ·1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—FOUNTAIN No. 19 IN EASTERN END.
1 + − − − − − − +
I B. 7
Group I, 9.
Total colonies per cc. on agar at 37°—15.
2 + − – – – – – +
I Do.
,, II, nil.
3 + – – – – – – +
I Do.
,, III, nil.
+
– 4 + – – – – – – + I Do.
,, IV, 1.
Bile salt lactose, medium.
5 + – – – – + – +
I
?
6 + + – – – – – – IV B.111
Class I, nil.
1 tube of 20 cc. of water taken
1
7 + – – – – – – + I B. 7
,, II, n i l .
2 t u b e s o f 1 0 c c . , ,
2
8 + – – + – – – –
I
?
„ III, 7.
3 ,, 5 cc.,,
3
9
+ – – – – – – –
I B. Muttabilis
Undetermined, 3.
3 ,, 1 cc. ,,
3
10
+ – – – – – – –
I
D o .
3 ,, ·1 cc. ,,
3
3 ,, ·01 cc. ,,
3
Fœcal bacilli in 10 cc. and upwards.
No vibrios in 100 cc.
SAMPLE IV.—FOUNTAIN NO. 10 IN DEOUPADI AMMAS STREET.
1 + + – + – + – + IV B. 102
Group 1, 2.
Total colonies per cc. on agar at 37°—28.
2 + + – + – – + – IV B. 116
„ II, nil.
3 + + – + – + – – IV
B . L a c t i s æ r o g e n e s
„ III, nil.
+
–
4 + + – + – – – + IV B. 102
, , I V , 8 .
Bile salt lactose, medium.
5 + – – – – – + –
I B. Vesiculosus.
6 + + – – – + + – IV B. 114
Class I,
nil.
1 tube of 20 cc. of water taken
1
7 + + – + – + + –
I V B. 116
,, II, 3.
2 tubes of 10 cc. ,,
2
8 + – – – – – + –
I B. Vesiculosus
,, III, 2.
3 ,, 5 cc. ,,
2
1
9 + + – + – + + –
IV B. 116
Undetermined,6.
3 ,, 1 cc. ,,
3
10 + + – + – + + – IV
Do.
3 ,, ·1 cc. ,,
3
3 ,, ·01 co. ,,
3
Fœcal bacilli in 5 cc. and upwards.
No vibrios in 100 cc.
48
REPORT.
The water of the deep well is not at all good. On This occasion it is highly polluted, and though the
pollution is not recent, it has been extensive as is shewn by the considerable number of species present among
the fœcal germs. Past analyses also shew that dangerous germs can get access to the water, so this water
should not be used for drinking if anything better can be got.
The water from the collecting chamber of the Infiltration Gallery is a good deal better than the last
though far from being what one would call a good water, there being too many fœcal germs and too many
varieties present. This latter condition persists in the water from Fountain 19 in the Eastern end, which
is otherwise very satisfactory. The water from Fountain 10 in Draupadi Amman Street is very similar
and would be called good but for the variety of species present.
Chemically the well water is rather the better not being quite so hard and shewing less oxidised
nitrogen. This figure is too high in all the samples, and very high in the river water. Unaccompanied by a
high figure for albuminoid nitrogen it is satisfactory enough as shewing that the polluting matter has all
disappeared
Chemical Analyses.
SAMPLE. I.
SAMPLE. II.
Physical appearances.
Colour and
Transparency.
Colourless and
clear.
Colourless and
clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids
Parts per 100,000
42·000
46·000
Temporary hardness
Do.
20·000
30·500
Permanent hardness
Do.
3·000
1·500
Total hardness
Do.
23·000
32·000
Chlorine
Do.
3·195
2·840
Ammoniacal nitrogen
Do.
trace.
trace.
Albuminoid nitrogen
Do.
0·004
trace.
Oxygen absorbed ( Tidy's Process)
Do.
0·014
0·019
Nitric nitrogen
Do.
0·050
0·212
QUALITATIVE.
Nitrites
Nil.
Nil.
Sulphates
Present.
Present.
Phosphates
Nil.
Ni l .
Iron, poisonous metals
Nil.
Ni l .
S A M P L E I V .
Physical appearances.
Colour and
Transparency.
Colourless and clear.
Smell.
None.
QUANTITATIVE.
Total solids
Parts per 100,000
46·000
Temporary hardness
Do.
29·000
Permanent hardness
Do.
2·000
Total hardness
Do.
31·000
Chlorine
Do.
2·840
Ammoniacal nitrogen
Do.
trace.
Albuminoid nitrogen
Do.
0·003
Oxygen absorbed ( Tidy's Process)
Do.
0·016
Nitric Nitrogen
Do.
0·225
QUALITATIVE.
Nitrites
Nil.
Sulphates
Present.
Phosphates
Nil.
Iron, poisonous metals
Nil, nil.
,
.