NationalLibraryOfScotland/medical-history-of-british-india huggingface dataset:
8
CENTRAL JAIL, RAJAHMUNDRY.
WATER SAMPLES TAKEN—27TH MAY 1912.
Bacteriological Analyses.
SAMPLE I.—FROM THE STORAGE RESERVOIR CONNECTED WITH
No. 8 WELL.
NumberLact oseSaccharoseDulciteAdoni t eInulin V o g e s a n d P r o s k IndolMotilityGroup
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37° C.—Countless.
+
-
Bile salt lactose, medium.
1 tube of 20 cc.
1
1 + +
- - - -
+
-
IV B. Coscoroba.
2 tubes of 10 cc.
2
2 + +
-
+
-
+
- -
IV B. Lactis ærogenes
Group I, nil.
3 „ 5. cc.
3
3 + +
-
+
-
+
- -
IV
Do.
„ II, nil.
3 „ 1 cc.
3
4
+ +
-
+
-
+
- -
IV
Do.
„ III, nil.
3 „ ·1 cc.
3
5 + +
-
+
-
+
- -
IV
Do.
„ IV, 10.
3 „ ·01 cc.
3
6 + +
-
+
-
+
- -
IV
Do.
7 + +
-
+
-
+
- -
IV
Do.
Fœcal bacilli in ·1 cc. and upwards.
8 + +
- - - -
+
-
IV B. Coscoroba
Class I, nil.
9
+ +
- - - -
+
-
IV
Do.
„ II, 10.
No vibrios in 100 cc.
10 + + -
- - -
+
-
1V
Do.
„ III, nil.
SAMPLE II.—FROM No. 8 DRINKING WATER WELL.
1 + + +
- - -
+
-
III B.Neapolitanus.
Total colonies per cc. on agar at 37° C.—Countless.
2
+
- - - - -
+
-
I B. Vesiculosus
Group I, 3.
3 + +
-
+
-
+
- -
IV B. Lactis ærogenes
„ II, nil.
Bile salt lactose, medium.
+
-
4 + +
-
+
-
+
- -
IV
Do.
„ III, 1.
5
+
- - - - -
+
-
I B. Vesiculosus
„ IV, 6.
6
+
- - - - -
+
-
I
Do.
1 tube of 20 cc.
1
7 + +
-
+
-
+
- -
IV B. Lactis ærogenes.
2 tubes of 10 cc.
2
8 + +
-
+
-
+
- -
IV
Do.
Class I, nil.
3 „ 5 cc.
3
9 + +
-
+
-
+
- -
IV
Do
„ II, 7.
3 „ 1 cc.
3
10 + +
-
+
-
+
- -
IV
Do
„ III; 3.
3 „ ·1 cc.
2
1
3 „ ·01 cc.
1
2
Fœcal bacilli in ·1 cc. and upwards.
No vibrios in 100 cc.
REPORT.
These two samples being from the same source, well No. 8; they are practically identical in character.
Presumably the storage tank is used as a reserve supply rather than a means to improve the quality of the
water. Anyhow the water from the reservoir shows no sign of improvement from having been stored. Bad
features in the water are the high total counts and the variety of species among the fœcal germs present.
Chemically the water is hard, but is otherwise good, though the figure for nitric nitrogen shows that it must.
have been extensively polluted at one time.
Chemical Analyses.
No. 8
DRINKING
WATER WELL.
STORAGE RESERVOIR
CONNECTED WITH WELL
No. 8.
Physical appearances.
Colour and
Transparency.
Colourless and clear.
Colourless and clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids
Parts per 100,000
39·000
38·400
Temporary hardness
Do.
14·000
13·500
Permanent hardness
Do.
7·000
6·500
Total hardness
Do.
21·000
20·000
Chlorine
Do.
3·017
3·017
Ammoniacal nitrogen
Do.
Trace.
Trace.
Albuminoid nitrogen
Do.
0·002
0·003
Oxygen absorbed ( Tidy's Process )
Do.
0·017
0·017
Nitric nitrogen
Do.
0·675
0·625
QUALITATIVE.
Nitrites
Nil.
Nil.
Sulphates
Present.
Present.
Phosphates
Nil.
Nil.
Iron, poisonous metals
Nil, nil.
Nil, nil.
10
DISTRICT JAIL, BERHAMPUR.
WATER SAMPLES TAKEN-24TH JUNE 1912.
Bacteriological.Analyses.
SAMPLE I.—JAIL WELL.
N u m b e r . L a c t o r 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 .
V o g e s a n d p r o s k .
Indol. M o l o t i l i t y . Group.
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37° C.—Countless.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
1
1 + + - - - + - - IV B. 112
Group I,
nil.
2 tubes of 10 cc.
2
2
+ + + + - +- - III B. 67
„ II, nil.
3 „ 5 cc.
3
3
+ + - - -
+- - IV B. 112
„ III, 2.
3 „ 1 cc.
3
4
+ + - - - + - - IV
Do.
„ IV, 8.
3
„
·1 cc.
2
1
5
+ + - - - + - - IV
Do.
3
„
·01 cc.
3
6
+ + - - - + - - IV
Do.
7
+ + - -
- + - - IV
Do.
Class I, nil.
Fœcal bacilli in ·1 cc. and upwards.
8
+ + - - - + - - IV
Do.
„ II, 2.
9 + + - -
- + - - IV
Do.
„ III, nil.
No vibrios in 100 cc.
1 0 + + + + - + - - III B. 67
Undetermined, 8.
SAMPLE II.—QUARANTINE WELL.
1 + + - - - - - - IV B. Gasoformans
Group I, 1.
2 + + - - - + + - IV B. Coscoroba
„ II, nil.
Total colonies per cc. on agar at 37° C.—Count
less (17,800).
+
-
3 + + - - - + + - IV
Do.
„ III, 1.
4 + + - - - + + - IV
Do.
„ IV, 8.
Bile salt lactose, medium.
5 + + - - - + + - IV
Do.
6 + + - - - + + - IV
Do.
1 tube of 20 cc.
1
7 + - - - - + + -
I B. Vesiculosus.
Class I, nil.
2 tubes of 10 cc.
2
8 + + + - - + 1- - III B. Neapolitanus
„ II, 9.
3
„
5 cc.
3
9 + + - - - + + - IV B. Coscoroba
„ III, 1.
3
„
1 cc.
3
10 + + - - - + + - 1V
Do.
3
„
·1 cc.
3
3
„
·01 cc.
3
Fœcal bacilli in ·cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—CAMP WELL.
1 + + - - - + - - IV B. 112
Group I, nil.
Total colonies per cc. on agar at 37° C.—Countless.
2 + + - - - + - - 1V
Do.
„ II, nil.
3 + + - - - + - - IV
„ III, nil.
Bile salt lactose, medium.
+
-
4 + + - + - + - - IV B. Lactis ærogenes
„ IV, 10.
5 + + - - - + - - IV B.112.
6 + + - - - + - - IV
Do.
7 + + - - - + - - IV
Do.
Class I, nil.
1 tube of 20 cc.
1
8 + + - - - + - - IV
Do.
„ II, 1.
9 + + - - - + - - IV
Do.
„ III
nil.
2 tubes of 10 cc.
2
10 + + - - - + - - IV
Do.
Undetermined, 9.
3
„
5 cc.
3
I
3
„
1 cc.
3
3
„
·1 cc.
3
3
„
·01 cc.
3
Fœcal bacilli in ·1cc. and upwards.
No vibrios in 100 cc.
REPORT.
These samples continue to show the undesirable features that have been noted at previous years at this
season. The water of the Quarantine Well is definitely the worst as it shows larger numbers and a greater
variety of more susceptible fœal germs. Bacteriologically the waters of the Jail Well and the Camp Well
are much alike, and though the fœal germs cannot be classed as highly objectionable, there are too many
of them and the total counts are very high.
Chemically the water of the Camp Well is the best as it has been ever since these examinations were
started.
11
Chemical Analyses .
SAMPLE I.
JAIL WELL.
SAMPLE II.
QUARANTINE WELL.
Colour and
Transparency.
Colourless and clear.
White and opaque.
Smell.
None.
None.
Total solids
Parts per 100,000
46·000
44·000
Temporary hardness
16·000
21·000
Permanent hardness
2·000
2·000
Total hardness
18·000
23·000
Chlorine
6·035
3·905
Ammoniacal nitrogen
Do.
Trace.
0·002
Aluminoid nitrogen
Do.
Trace.
0·006
Oxygen absorbed ( Tidy' s Process) Do.
0·048
0·076
Nitric nitrogen
Do.
0 . 4 7 5
0 . 5 5 0
Nil.
Nil .
Present.
Present.
Nil.
Nil .
Nil, nil .
Nil, nil .
SAMPLE III.
CAMP WELL.
Colour and
Transparency.
Colourless and clear.
Smell.
None.
Total solids
Parts per 100,000
49·000
Temporary hardness
Do.
6·500
Permanent hardness
Do.
1·500
Total hardness
Do.
8·000
Chlorine
Do.
3·550
Ammoniaeal nitrogen
Do.
0·002
Albuminoid nitrogen
Do.
0·003
Oxygen absorbed ( Tidy's Process)
Do.
0·019
Nitric nitrogen
Do.
0·075
Nil .
Present.
Nil.
Nil, nil.
12
CENTRAL JAIL, BELLARY.
WATER SAMPLES TAKEN--1ST JULY 1912.
Bacteriological Analyses.
SAMPLE I.—OLD WELL.
NumberLactoseSacchar oseDul ci t eAdoniteInulin V o g e s a n d P r o k e s IndolMotilityGroup
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37° C.— Countless
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
1
1
+
-
- - - -
+ -
I B. Vesiculosus
Group I, 9.
2 tubes of 10 cc.
2
2 +
- - - - - + -
I
Do.
„ II, nil.
3 „ 5 cc.
3
3 + - - + - - + -
I B. Acidi lactici
„ III, nil.
3 „ 1 cc.
3
4
+
- - - - - + -
I B. Vesiculosus
„ IV, 1.
3 ,, 1 cc.
3
5
+
- - - - - + -
I
Do.
3 „ 01 cc.
3
6
+
- - - - - + -
I
Do.
7 + - - - - - + -
I
Do.
Class I, nil.
Fcecal bacilli in 1 co. and upwards.
8 + - - + - - + -
I B. Acidi lactici
,, II, 4.
9 + + - + - - - - IV B. Lactis ærogenes.
„ III, 6.
No vibrios in 100 cc.
10 + - - + - - +
-
I B. Acidi lactici.
SAMPLE II.—NEW WELL.
1
+
- - - - - + -
I B. Vesiculosus
Group I, 8.
Total colonies per cc. on agar at 37° C.—Countless.
2
+
- - - - - + -
I
Do.
„ II, nil.
3 +
- - - - - + -
I
Do.
„ III, 1.
Bile salt lactose, medium.
4
+
- - - - - + -
I
Do.
„ IV, 1.
+
-
5
+
- - - - - + -
I
Do.
6
+
- - - - - + -
I
Do.
7 +
- - - - - + -
I
Do. Class I, nil .
1 tube of 20 cc.
1
8
+
- - - - - + -
I
Do.
„ II, 2.
2 tubes of 10 cc.
2
9 + + - - - - + - IV B. Coscoroba
„ III, 8.
3 „ 5 cc.
3
10 + + + - - - + - Ill B. Neapolitanus.
3 „ 1 cc.
3
3 „ 1 cc.
3
3 „ 01 cc.
2
1
Fcecal bacilli in 01 cc. and upw ards.
No vibrios in 100 cc.
REPORT.
There is nothing new to say about these samples. The water of the old well continues to show the old.
undesirable features, but it appears to be the best that can be got. The water of the new well shows all these.
undesirable features in a greatly accentuated degree and is quite impossible as a drinking-water.
Chemical Analyses.
Physical appearances
Colour and
Transparency.
SAMPLE 1. OLD WELL.
SAMPLE II. NEW WELL.
Colourless and clear.
Colourless and clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids
Parts per 100,000
81·000
135·000
Temporary hardness
Do.
27·000
21·000
Permanent hardness
Do.
13.000
34.000
Total hardness
Do.
40.000
55.000
Chlorine
Do.
7·810
17.040
Ammoniacal nitrogen
Do.
Trace.
0002
Albuminoid nitrogen
Do.
Trace.
0·006
Oxygen absorbed (Tidy’s Process)
Do.
0·019
0.057
Nitric nitrogen
Do.
1.000
4.500
QUALITATIVE.
Nitrites
Nil.
Present.
Sulphates
Present.
Present.
Phosphates
Nil .
Nil.
Iron, poisonous metals
Nil, nil .
Nil, nil.
13
CENTRAL JAIL, VELLORE.
WATER SAMPLES TAKEN—5TH JULY 1912.
Bacteriological Analyses.
SAMPLE I.—GENERAL WELL (FROM A PIPE AS IT
THE RESERVOIR).
Number.Lactose.
S a c c h a r o s e .
Dul ci t e.Adoni t e.Inulin.
V o g e s a n d P r o g e s . Indole.Motility.Group.
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37° C.—4,300.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
1
2 tubes of 10 cc.
2
1 + - - - - - + -
I B. Vesiculosus
Group I, 10.
3 „ 5 cc.
3
2 + - - - - - + -
I
Do.
„ II, nil.
3 „ 1 cc.
3
3 + - - - - - + -
I
Do.
„ III, nil.
3 „ 1 cc.
2
1
4 + - - - - - + -
I
Do.
„ IV, nil
3 „ 01 cc.
3
5 + - - - - - + -
I
Do.
6 + - - - - - + -
I
Do.
7 + - - - - - + -
I
Do.
8 + - - - - - + -
I
Do.
Class I, nil.
Fcecal bacilli in 1 cc. and upwards.
9 + - - - - - + -
I
Do.
„ II, nil.
10 + - - - - - + -
I
Do.
„ III, 10.
No vibrios in 100 cc.
REPORT .
Only the water of the General W ell was available for sampling on this occasion. With a total count of
over four thousand to the cc. and ten. fœcal germs to the cc. the water cannot be called other than bad,.
but it has been very much worse. Chemically also it has been worse, so it would appear that the conditions.
of drought are favourable to an improvement in the quality of the water. This rather suggests that under
other conditions surface pollution gets access to the well. If this occurs it is surely remediable.
Chemical Analyses.
Physical appearances.
Colour and
Transparency.
SAMPLE I.
GENERAL WELL.
Colourless and clear.
Smell.
None.
QUANTITATIVE.
Total solids
Parts per 100,000
43·000
Temporary hardness
Do.
1 9 · 0 0 0
Permanent hardness
Do.
6·000
Total hardness
Do.
25·000
Chlorine
Do.
2·130
Anmoniacal nitrogen
Do.
T r a c e .
Albuminoid nitrogen.
Do.
0·002
Oxygen absorbed ( Tidy’s Process)
Do.
0·010
Nitric nitrogen
Do.
0·450
QUALITATIVE.
Nitrites
Nil.
Sulphates
Present.
Phosphates
Nil
.
Iron, poisonous metals
Nil, nil.
Half-yearly Chemical and Bacteriological Report on the Water-
Supply of the Jails in the Madras Presidency for the half-
year ending 31st December 1912, being Part II of Appendix
III to the Annual Report of the King Institute of Preventive
Medicine, Madras, for the year 1912.
15
DISTRICT JAIL, TANJORE.
WATER SAMPLES TAKEN-16TH OCTOBER 1912.
Bacteriological Analyses.
SAMPLE I.—WATER FROM A PIPE ADJOINING THE PUMP WELL .
Number. Location. S a c c h a r o s e . Dul ci t e. Adonite.
I nul i n.
V o g e s a n d P r o s k .
Indol. Mot i l i t y.
G r o u p .
N a m e o f B a c i l l i .
Group and Remarks.
Total colonies per cc. on agar at 37° C.
—720.
Bile salt lactose. medium.
+
-
1 + +
- - - -
+ + IV B.106
Group I, 5.
1 tube of 20 cc.
1
2 + +
- - - -
+ + IV
Do.
„ II, nil.
2 tubes of 10 cc.
2
3 +
- - - -
- + - I
B. Vesiculosus
„ III.
3
„
5 cc.
3
4 +
-
- - - - + - I
Do
„ V, 4.
3
„
1 cc.
3
5 + + - - - - + - IV B. Coscoroba
3·„
·1 cc.
3
6 + + + + - + - - III B. 67.
3·„
· 01 cc.
1
2
7 + - - - - - + -
I
Vesiculosus
8
+ -
- - - -
+
-
I
Do.
Class , nil.
Fœcal bacilli in ·1 cc. and upwards.
9 + - - - - - + - I
Do.
„ I, 5.
No vibrios in 100 cc.
10 + + -
-
- - + - IV B. Coscoroba
„ II, 5.
SAMPLE II—GENERAL WELL.
1 + + + - - - + - III B. Neapolitanus
Group , nil.
2 + + - + - - - - IV B. Gasoformans
„ I, nil.
Total colonies per cc. on agar 37° C.
—1,060.
3 + + + - - - + - III B. Neapolitanus
„ II, 4.
4 + + + - - - + -
III
Do.
„ V, 6.
5 + + + - - - + - III
Do.
Bile salt lactose, medium.
+
-
6 + + - + - - - - IV B. Gassformans.
7 + + – + - – – – IV
Do.
Class I, nil.
8 + + - + - - - -
IV
Do.
„ II, 10.
1 tube of 20 cc.
1
9 + + - + - + - - IV B. Laotis œrogenes.
„ III, nil.
2 tubes of 10 cc.
2
10 + + - +
- + - - IV
Do.
3
„
5 cc.
3
3
„
1 cc.
3
3
„
·1 cc.
3
3
„
·01 cc.
3
Fcecal bacilli in •01 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.— WELL WATER FROM . A PIPE AS IT FALLS INTO THE
CISTERN (OUTSIDE THE JAIL USED BY CIVIL DEBTORS).
1 + + - -
-
- + + IV
B. 106
Group I, 9.
2 + - - - - - - - I
B. Mutabilis
„ I, nil.
Total colonies per cc. on agar at 37° C.
—1,870.
3 + - - - - - - - I
Do.
„ III, nil.
Bile salt lactose, medium.
+
-
4 + - - - - - - -
I
Do.
„ IV, 1.
5 + - - - - - - -
I
Do.
6 + - - - - - - -
I
Do.
1 tube of 20 cc.
1
7 + -
- - - - - - I
Do.
2 tubes of 10 cc.
2
8 + - - - - - - - I
Do.
Class I, nit.
3
„
5 cc.
3
9 + - - - - - + - I
B, Vesiculosus
„ II, 1.
3
„
1 cc.
3
10 + - - - - - - -
I
B. Mutabilis
„ III 9.
3
„
·1 cc.
3
3
„
·01 cc.
3
Fœcal bacilli in ·1 cc. and upwards.
No vibrios iu 100 cc.
REPORT.
The water from the Tanjore Jail wells is never good but it has been worse than it is on the present occa
sion, as regards two of the sources at least. The quarantine well easily maintains its -unenviable reputation
and the only redeeming feature is that the plentiful pollution is not of very recent origin. The water of
the pump well is rather better though by no means good. The faecal germs in it are fewer but they are of
greater variety. The third sample is from a source not, hitherto examined. Bacteriologically it is rather
like the water of the Pump Well but it shows a higher total count. As against this however the focal germs
are less varied and of a more resistant type.
Chemically this water is inferior to the others and its high figure for free ammonia should be regarded
with grave suspicion. It also shows a higher figure for oxidisable matter and for nitric nitrogen.
5
16
Chemical Analyses.
PIPE ADJOINING
THE PUMP WELL. GENERAL WELL.
P hysical appearances.
Colour and
Transparency.
Colourless and
clear.
White and hazy.
Smell.
None.
None.
QUANTITATIVE.
Total solids ...
..
...
...
...
...
...
Parts per 100;000 ..
18.000
18.800
Temporary hardness
...
...
...
...
...
Do.
...
1.000
1.000
Permanent hardness
...
...
...
Do.
...
2.500
3.000
Total hardness
...
...
...
...
...
...
Do.
... I
3.500
4.000
Chlorine
...
...
...
...
...
...
...
Do.
...
1.597
1.775
Ammoniacal nitrogen
...
...
...
...
...
Do.
...
0.003
Trace.
Albuminoid nitrogen
...
...
...
...
...
Do.
. .
0.003
0.007
Oxygen absorbed (Tidy's Process)
...
...
...
Do.
. .
0.029
0 . 0 3 8
Nitric nitrogen
...
...
...
...
...
...
Do.
...
0.225
0.200
QUALITATIVE.
...
..
Nitrites...
...
...
...
...
...
...
...
Nil.
.Nil.
Sulphates
...
...
...
...
...
...
...
...
...
...
Present.
Present.
Phosphates .....
•••
•••
..
...
•••
.••
•••
•••
Nil.
Nil.
Iron, poisonous metals
...
...
...
..
.
...
...
Nil, nil.
Nil, nil.
WATER FROM A PIPE AS IT FALLS
INTO THE CISTERN (WELL WATER
USED BY CIVIL DEBTORS) .
Physical appearances.
Colour and
Transparency.
Yellowish and opaque
Smell.
None.
QUANTITATIVE.
Total solids
...
•••
...
...
...
..
-.
Parts per 100,000 ...
23.000
Temporary hardness ...
...
......
...
...
Do.
..
3.000
..
Permanent hardness ...
...
...
...
Do.
...
4.000
Total hardness
...
...
..
...
...
Do.
...
7.000
...
...
...
..
Chlorine...
Do.
...
2.307
...
...
A mmoniacal nitrogen...
...
Do.
...
0.020
•••
...
Albuminoid nitrogen...
...
Do.
...
0.007
Oxygen absorbed (Tide's Process)) ..
...
Do.
...
0.114
...
...
...
Nitric nitrogen
...
...
Do.
...
0.275
QUALITATIVE,
Nitrites...
....
..
•..
...
.. .
. .
...
.
Present.
Sulphates
...
...
...
.. ...
...
..
...
...
..
. .
Present.
...
Phosphates
.••
...
...
...
...
...
..
Nil.
'Iron, poisonous metals ...
...
..
...
..
Nil, nil.
17
DISTRICT JAIL, CUDDALORE.
WATER SAMPLES TAKEN—16TH OCTOBER 1912.
Bacteriological Analyses.
SAMPLE I.—LAKE WELL WATER.
C o l o n y 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 n u l i n .
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.—320.
Bile salt lactose, medium.
+
-
1 t ube of 20 cc. . . .
. . .
1
No lactose fermenters.
. . .
2
2 tubes of 10 cc. . . .
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 II—KITCHEN TAP WATER.
1 + - - - -
-
+ + I B. Grunthal . . .
Group I, 9.
Total colonies per cc. on agar at 37° C.-3120.
+
-
2
+ -
- - - - + + I
Do. . . .
" I I ,
n i l
.
3
+ -
- - - - + + I
Do. . . .
" I I I , 1
4 + - - - - - + + I
Do. . . .
" IV, nil,
Bile salt lactose, medium.
5 + + + + - + - - III B. 67.
6 + -
- - - - + + I B. Grunthal.
1
1 t u b e o f 2 0 c c . . . .
7 + - - - - - + + I
Do. . . .
2 tubes of 10 cc. . . .
2
...
8 + - - - - - + + I
Do. . . .
Class I, nil .
3 " 5 c c . . . .
9
+ -
- - - - + + I
Do. . . .
" I I , 1
3 " 1 cc. . . .
3
...
10 + -
- - - - + + I
Do. . . .
" III, 9.
3 " .1 cc. . . .
3
3 " .01 cc. . . .
. . .
3
Fœcal bacilli in .1 cc. and upwards.
No vibrios in 100 cc.
REPORT.
On this occasion the water of the Lake well is of great purity. Never since these analyses were started
has the water been anything like as good. This definitely shows that the source is a good one and that the
polluting agency that has been in evidence on former occasions is either not in constant action or can be
a v o i d e d . T h i s a l m o s t a m o u n t s t o s a y i n g t h a t i t c a n b e e l i m i n a t e d o n c e f o r a l l , a n d i f t h i s b e t r u e i t o u g h t
to be done. Then we would be spared the experience of seeing a thoroughly good supply utterly spoiled in
distribution. This has happened on the present occasion and the water drawn from the tap in the kitchen
shows a total count ten times as great and more than six hundred times the number of fœcal bacilli as were
found in the Lake Well water. The source of this great deterioration is probably silt derived from the
Lake Well water when the polluting agency was in action. The most likely source of pollution seems to be
the lake when it rises above a certain level and its water can then penetrate through porous soil to the well.
Unless however the level of the Lake rises as much as 30 feet, it is obvious that part of the well is always
below the level of the Lake. This implies either that there is an impermeable stratum between the Lake and
the well or that the Lake water is sometimes of great purity. Considering its surroundings the latter is
highly improbable. If then water-proof steining were carried down to a sufficient depth it should be possible
to exclude the Lake water altogether and secure a permanently geed supply Chemically the water is much
as usual but the oxidised nitrogen is again very high.
18
Chemical Analyses.
LAKE WELL
WATER.
KITCHEN TAP
WATER.
Physical appearances.
Colour and
Transparency.
White and hazy. White and hazy.
Smeli.
None.
None.
QUANTITATIVE.
Total solids . . .
Parts per 100,000 . . .
17.400
18.000
Temporary hardness . . .
Do. . . .
2.500
1.000
Do. . . .
2.500
Permanent hardness . . .
2.500
Total hardness . . .
D o . . . .
5.000
3.500
Do. . . .
1.065
Chlorine . . .
1.242
Do. . . .
Trace.
Ammoniacal nitrogen . . .
Trace.
D o . . . .
Albuminoid nitrogen . . .
0.003
0.003
Oxygen absorbed ( Tidy's Process) . . .
Do. . . .
0.019
0.029
Do. . . .
Nitric nitrogen . . .
0.450
0.500
Q U A L I T A T I V E .
Nitrites . . .
. . .
Nil.
Nil.
Sulphates . . .
. . .
Trace.
Trace.
Phosphates . . .
. . .
Nil.
Nil.
Iron, poisonous metals . . .
. . .
Nil, nil.
Nil, nil.
19
DISTRICT JAIL, PALAMCOTTAH.
WATER SAMPLES TAKEN—10TH NOVEMBER. 1912.
Bacteriological Analyses.
SAMPLE I.—DRINKING WELL WATER.
Total colonies per cc. on agar at 37° C.—580.
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 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.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
...
...
...
...
1
...
1 + + + - - - + - III B. Neapolitanus
... Group I, nil.
2 + + + - - - + - Ill
Do.
II, nil.
2 tubes of 10 cc.
...
...
...
...
2
...
3
19
5 cc. ...
...
...
...
3
3 + + + - - - + -
III
Do.
.,.
„ III, 10.
3
1 cc. ...
...
...
...
3
. . . 4 + + + - - - + - III
Do.
...
„ IV, nit.
l 1
3 „
'1 c c .
. . .
. . .
. . .
. . .
2
1
5 + + + - - - + -
III
Do.
3
„
. 0 1 c c .
. . .
. . .
. . .
. . .
1
2
6 + + + - - - + - III
Do.
7 + + + - - - - - III
Do.
Fæcal bacilli in .1 cc. and upwards.
No vibrios in 100 cc.
8 + + + - - - + - III
Do.
... Class
I, nil.
9 + + + - - -1+ + III B.71
...
...
,, II, 10.
10
+ + + - - -1+
+
- III
B. Neapolitanas ...
„ III, nil.
REPORT.
The water of this well maintains its rather indifferent standard. It shows a reduced total count as
compared with the sample at this season last year, but the number of excremental germs is the same, as is
the type. For the past two years the water has been definitely worse in the first half of the year, so the
autumnal conditions would appear to favour a rather better supply. It is encouraging to note that for three
years now there has been no return to the highly unsatisfactory state of affairs noted in 1909.
Chemical Analyses.
SAMPLE No. I.—DRINKING
WELL WATER.
Physical appearances.
Colour and
Transparency.
Colourless and clear.
Smell.
None.
QUANTITATIVE.
33.800
Total solids
...
...
...
...
...
Parts per 100,000 ...
Temporary hardness
...
...
...
...
Do.
...
Permanent
13.000
hardness
...
.... ... .. Do. ...
4.000
Total hardness
...
...
...
...
Do.
17.000
Chlorine ...
...
...
...
...
...
...
Do.
...
1.420
Ammonia,cal nitrogen ...
...
...
...
...
Do.
...
Trace.
Albuminoid nitrogen
...
...
...
Do.
...
Trace.
Oxygen absorbed ( Tidy's Process)
...
...
Do.
0.010
Nitric nitrogen ..
...
...
...
...
...
Do.
...
0.175
QUALITATIVE.
Nil.
Nitrites
...
...
...
...
...
...
..
...
...
...
Sulphates
...
...
...
..
...
...
...
...
Present.
Phosphates
Nil.
Iron, Poisonous metals
Nil, nil.
6