NationalLibraryOfScotland/medical-history-of-british-india huggingface dataset:
1 (a)
MADRAS.
WATER SAMPLES TAKEN—11TH AND 12TH APRIL 1911.
REMARKS. —There was a small flow of water in the Sholavaram Channel to the Red Hills. Maclean's Channel was dry when
samples were taken. The supply is constant. There was no rain since last analysis.
Bacteriological Analysis.
SAMPLE I.—FROM THE SURFACE OF THE RED HILLS LAKE.
Number.
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.—227.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
...
...
...
. . .
1
No lactose fermenters.
2 tubes of 1.0 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 II. —FROM THE BOTTOM OF THE RED HILLS LAKE.
No lactose fermenters.
Total colonies per cc. on agar at 37° C.—710.
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 III. —SHOLAVARAM CHANNEL.
1 + + - +
- +
- - IV B. Lactis ærogenues. Group I, nil .
2 + + - +
- +
- - IV
Do.
Total colonies per cc. on agar at 37° C.—1130.
3 + + + +
- +
- - III B. 67
„ I I ,
n i l
.
4 + + - +
- +
- - IV B. Lactis ærogenes.
„ III, 1.
Bile salt lactose, medium.
+
-
5 + + - +
- - - - IV B. Gasoformans ...
„ IV, 9.
6 + + -
- - +
- - IV B. 112.
7 +
+ -
- - - - - IV B. 111.
1 tube of 20 cc.
1
. . .
8 + + -
- - +
- -
I V B. 112
...
Class I, nil.
2 tubes of 10 cc.
...
...
...
2
. . .
9 + + - +
- - - - IV B. Gasoformans
...
„ II, 6.
3 „ 5 cc...
...
...
3
. . . 10 + + -
- - +
- -
I V B. 112
...
...
„ I I I , n i l .
Undetermined,
4.
3 „ 1 cc.
...
...
..
.
3
...
3 „ . 1 c c .
. . .
. . .
. . .
. . .
1
2
3 „ .01 cc.
..
...
...
...
...
3
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE. IV. —TAP IN MALAYAPERUMAL STREET, GEORGE
¬TOWN.
1
+ +
-
-
-
- +
- IV B. Coscoroba
... Group I, 3.
2
+ -
- - -
- +
- I B. Vesiculosus.
Total colonies per cc. on agar at 37° C.—2,418.
3
+ -
- - -
- +
- I
Do.
„ I I
ni l .
4 + +
- - -
- +
- IV B. Coscoroba
„ I I I ,n
i l .
Bile salt lactose, medium.
+
-
5 + +
- - -
- +
- IV
Do.
...
„ I V , 7
6 + +
- - -
- +
- IV
Do.
„
7 + +
- - -
- +
- IV
Do.
1 tube of 20 cc.
1
. . .
8 + +
- - -
- +
- IV
Do.
... Class I, nil.
9 + +
- - -
- +
- IV
Do.
„ I I , 7
.
2 tubes of 10 cc. ...
...
. . .
2
. . .
10
+ -
- - -
- +
- I B. Vesiculosus
...
,, III, 3.
3 „ 5 cc. ...
...
...
. . .
2
1
3 „ 1 cc. ...
...
...
...
2
1
3 „ .1 cc. ...
...
...
. . .
. . .
3
3 „ .01 cc. ...
...
...
. . .
. . .
3
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
3
REPORT.
Bacteriologically the water corresponds to that of Tanjore ; filtration does not seem to have
purified it in any way. All the samples suggest gross pollution for they are heavy with excre-
mental organisms. This state of affairs is probably due to the repairing of the infiltration
gallery and the consequent admixture of unfiltered water.
Chemically the samples have not deteriorated much.
Chemical Analyses.
SAMPLE I
SAMPLE IV.
Physical appearances.
Colour and
Transparency.
White and opaque.
White and opaque.
Smell.
l
None.
None.
QUANTITATIVE.
Total solids ...
...
...
...
... Parts per 100,000 ...
23.000
18.200
Temporary hardness ... ...
...
...
Do
... 9.000
9.000
Permanent hardness ...
. . . ...
...
Do
...
1.000
1.000
Total hardness
...
...
...
...
Do
...
10.000
10.000
Chlorine
...
...
...
...
...
Do.
...
1.420
1.420
Ammoniacal nitrogen
...
...
...
Do
...
0.003
0.002
Albuminoid nitrogen
...
...
...
Do
...
0.006
0.004
Oxygen absorbed (Tidy's Process) ... ...
Do
...
0.061
0.043
Nitric nitrogen
...
. . .
. . .
. . .
Do.
...
Trace.
Trace.
QUALITATIVE.
Nitrites
...
...
...
. . .
...
. . .
. . . ...
...
Nil.
Nil.
Sulphates ...
...
...
...
...
...
. . .
. . .
. . .
Present.
Present.
Phosphates ...
...
...
...
...
...
...
...
...
Nil.
Nil.
Iron, poisonous metals
. . .
. . .
. . .
. . .
. . .
. . .
. . .
Nil, nil.
Nil, nil.
Pike
of
.5
REPORT.
Both bacteriologically and chemically all the samples are much worse than those examined
last quarter. An explanation for this deterioration should be sought for. All the samples
show the same quality as the river water which contains countless colonies in a cubic centimeter
and excremental organisms in a tenth of a cc.
Chemically the total solids are increased, so also the chlorine and albuminoid nitrogen.
Chemical Analyses.
SAMPLE I.
SAMPLE IV.
Physical appearances.
Colour and
Transparency.
White and opaque.
White and opaque.
Smell.
N o n e .
None.
QUANTITATIVE.
Total solids ...
... ... ... ...
Parts per 100,000 ...
36.000
29.000
Temporary hardness
...
...
...
Do.
...
10.000
10.000
Permanent hardness
...
...
...
Do.
...
1.000
2.000
Total hardness
...
Do.
...
11.000
12.000
Chlorine
...
...
...
...
...
Do.
...
3.195
3.195
Ammoniacal nitrogen
...
...
...
Do.
...
0.012
Trace.
Albuminoid nitrogen
...
...
...
Do.
...
0.013
0.004
Oxygen absorbed ( Tidy's Process ) ...
...
Do.
...
0.139
0.087
Nitric nitrogen
...
...
...
...
Do.
. . .
Trace.
Trace.
QUALITATIVE.
Nitrites
...
...
...
...
...
...
...
...
...
Nil.
Nil.
Sulphates ...
...
...
...
... ... ... ... ...
Present.
Present.
Phosphates ...
...
...
...
...
...
...
...
Nil.
Nil.
Iron, poisonous metals ...
...
...
...
...
...
...
Nil, nil.
Nil, nil.
7
SAMPLE V.—FROM A TAP IN WESTERN CORNER IN KITCHUPET
ROAD.
Total colonies per cc. on agar at 37° C.—Countless.
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 r 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. of water taken
. . .
1 . . .
1 + + - - - - + +
IV B. 106 ...
. . .
Group I, nil.
2 tubes of 10 cc.
,,
. . .
2
. . .
2 + + - - - - + -
IV B. Coscoroba
. . .
,, II nil.
3 ,,5 cc.
. . .
3 . . .
3 + + - - - - + -
IV
Do.
. . .
,,III, nil,
3
1 cc.
,,
, ,
. . .
2
1
4 + + - - - - + -
IV
Do.
. . .
IV, 10,
3 ,, .1 cc. ,,
. .
1
2
5 + + - - - - + +
Iv B. 106.
. . .
3 ,, .01. cc. ,,
. .
1
2
6 + + - - - - + -
IV B. Coscoroba.
. . .
Fœcal bacilli in 1 cc. and upwards.
8
7 + + - - - - + -
IV
Do.
. . .
8
+ + - - - - + -
IV
Do.
. . .
Class I, nil,
9 + + - - - - + +
IV B. 106
...
. . .
,, II, 10,
No vibrios in 100 cc.
1 0 + + - - - - + -
IV B. Cosooroba
. . .
,, III, nil,
REPORT.
Bacteriologically the tank water is of fair quality, but the spring sample is not good, the total count
high and it contains objectionable organisms. The water from the distributary system has slightly improve
as shown by the nature of the organisms it now contains but the total counts have increased suggesting the
it contains a large amount of organic matter. This is borne out by the chemical analysis as is evident
from
the high figures for ammonia and oxygen absorption.
Chemical Analyses.
SAMPLE I.
SAMPLE V.
Physical appearances.
Colour and
transparency.
White and opaque.
Yellowish and hazy.
Smell.
None.
None.
QUANTITATIVE.
Total solids ...
. . .
. . .
. . .
. . .
Parts per 100,000 ...
21.000
20.000
Temporary hardness
. . .
. . .
. . .
. . .
Do.
...
4.000
5.500
Permanent hardness
. . .
. . .
. . .
. . .
Do.
...
1.500
1.500
Total hardness
. . .
. . . . . .
. . .
Do.
...
5.500
7.000
Chlorine
...
. . .
. . .
. . .
. . .
Do.
...
1.065
1.065
A minoniacal nitrogen
. . .
. . .
. . .
. . .
Do.
...
0.007
0.101
Albuminoid nitrogen
. . .
. . .
. . . . . .
Do.
0.072
0.040
Oxygen absorbed ( Tidy's Process) . . .
. . .
. . .
Do.
...
0.322
0.243
Nitric nitrogen
. . .
. . .
. . .
. . .
Do.
Trace.
Trace.
QUALITATIVE.
Nitrites
...
. . .
. . .
. . .
. . .
. . .
. . .
. . .
. . .
Nil.
Nil .
Sulphates ...
...
. . . . . .
. . .
. . .
. . .
. . .
. . .
. . .
Trace.
Trace.
Phosphates ...
. . .
. . . . . .
. . .
. . .
. . .
. . .
. . .
. . .
Nil.
Nil.
Iron, poisonous metals
. . .
. . .
. . .
. . .
. . .
. . .
. . .
Nil, nil.
Nil, nil.
9
REPORT.
Bacteriologically the sample taken from above the Infiltration Gallery gives good results.
The filtered samples give the same results as during the previous quarter showing a less satis-
factory condition than the unfiltered water.
Chemically the water continues to be satisfactory.
Chemical Analyses.
SAMPLE I.
SAMPLE IV.
Physical appearances.
Colour and
Transparency.
Colourless and clear.
Colourless and clear.
Smell.
None.
None.
QUANTITATIVE.
Total solid
...
...
...
...
... Parts per 100,000 ...
10.000
10.000
Temporary hardness ...
...
...
...
Do.
...
3.000
3.000
Permanent hardness ...
...
...
...
Do.
...
2.000
2.000
Total hardness ...
...
...
...
...
Do.
...
5.000
5.000
Chlorine
...
... ... ... ...
Do.
...
1.065
1.065
Ammoniacal nitrogen ...
...
...
...
Do.
...
0.003
Trace.
Albuminoid nitrogen ...
...
... ...
Do.
...
0.003
Trace.
Oxygen absorbed ( Tidy's Process)
...
...
Do
...
0.035
0.026
Nitric nitrogen
...
...
... ...
Do.
...
0.037
0.050
QUALITATIVE.
Nitrites
... ... ... ... ... ... ... ...
Nil
Nil.
Sulphates ...
... ...
...
... ...
...
... ...
Trace.
Trace.
Phosphates ...
...
...
...
...
...
...
...
...
Nil.
Nil.
Iron, poisonous metals
...
...
...
...
...
...
...
Nil, nil.
Nil, nil.
11
REPORT.
Bacteriologically all the samples are unsatisfactory and the reason for this should be
ascertained. The total counts are all high showing they are rich in bacterial fauna. Two of
the samples contain Bacillus Coli Commumis, an objectionable organism clearly suggesting
contamination with human excreta ; during the last four quarters it was not found.
Chemically the water maintains the usual high standard.
Chemical Analyses.
SAMPLE I.
SAMPLE IV.
Physical appearances.
Colour and
Transparency.
Yellowish and hazy. Yellowish and opaque.
Smell.
None.
None.
QUANTITATIVE.
Total solids ... ...
... ...
...
Parts per 100,000 ...
2.600
2.600
Temporary hardness
... ...
...
Do. ... ... Nil
Nil .
Permanent hardness
... ...
...
Do. ... ... 0.500
0.500
Total hardness
... ... ... ...
Do. ... ...
0.500
0.500
Chlorine ...
... ... ...
...
Do. ... ...
0.355
0.355
Ammoniacal nitrogen
...
... ...
Do. ... ...
0.006
Trace.
Albuminoid nitrogen
...
... ...
Do. ... ... 0.007
0.007
Oxygen absorbed ( Tidy' s Process)
...
Do. ... ...
0.156
0.156
Nitric nitrogen
... ... ... ...
Do. ... ...
Trace.
Trace.
QUALITATIVE.
Nitrites
......... ......... ...
Nil.
Nil.
Sulphates ... ... ... ... ...
... ... ... ...
Nil.
Nil.
Phosphates ... ... ...
... ...
... ... ...
...
Nil.
Nil.
Iron, poisonous metals ...
...
... ... ... ...
...
Nil, nil.
Nil, nil.
WATER SAMPLES TAKEN—10TH MAY 1911.
REMARKS. —The supply is intermittent. There was practically no rain since last analysis.
Bacteriological Analyses.
SAMPLE I.—FIRST TAP AFTER SERVICE RESERVOIR.
Numbe r .
La c t o s e . S a c c h a r o s e . Dul ci t e.
Adoni t e . I nul i n. V o g e s a n d P r o s k . Indol . Mot i l i t y. Gr oup.
Name of Bacilli.
Group and
Remar
ks.
Total colonies per cc. on agar at 37° C.—cannot be counted.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
...
... ... ...
1
...
1 + + - + - + - - IV B. Lactis ærogenes. Group I, nil
2 tubes of 10 cc.
...
...
...
2
. . . 2 + + - - - + - - IV B. 112
...
„ II, ni l .
3 „ 5 cc.
...
... ...
...
3
. . . 3 + + - + - + - - IV B. Lactis ærogenes.
„ III,n i l .
3 „ 1 cc.
...
...
...
...
1
2
4 + + - + - + - - IV
D o .
„
IV, 10.
3 „ .1 cc.
...
....
...
. . .
3
5 +
+
- - - + - -
I V B. 112.
3 „ .01 cc.
...
...
. . .
3
6 +
+
- - - + - - IV Do.
7 +
+
- - - + - - IV Do. . . .
. . . Class I, nil.
Fœcal bacilli in 5 cc. and upwards.
8 + + - + - + - - IV B. Lactis ærogenes.
9 + + - + - + - - IV
Do.
„ II, 6.
No vibrios in 100 cc.
10 + + - + - + - - IV
Do.
„ IIIn i l
. Un d e t e r mi n e d ,
4.
SAMPLE II. —TAP ON THE ELLORE ROAD CLOSE TO TOLL-GATE.
1 + + - + -
+ -
-
IV B. Laotis ærogenes. Group I, nil.
2 + + + + - + - - III B. 67
. . .
„ I I ,
n i l .
Total colonies per cc. on agar at 37° C.—441.
3 + + + + - + - - III
Do.
...
...
„ III, 3.
4 + + - + - + - - IV B. Lactis ærogenes.
„ I V , 7 .
Bile salt lactose, medium.
+
-
5 + + - + - + - - IV
Do.
6 + + - + - + - - IV
Do.
7 + + - + - + - - IV
Do.
1 tube of 20 cc. . . .
. . .
. . .
. . .
1
. . . 8 + + + + - + - -
I I I B. 67
...
... Class I, nil.
9 + + - + - + - - IV B. Lactis ærogenes.
„ II, 10.
2 tubes of 10 cc.
...
...
. . .
2
. . .
10 + + - + - + - - IV
Do.
„ III, nil.
3 „ 5 cc.
3
...
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 .—TAP NEAR NUZVID TOLL-GATE.
1
+ + -
+ - - - - IV B. Gasoformans ... Group I, nil.
2
+ + + + - + - - III B. 67.
Total colonies per cc. on agar at 37° C. —cannot be counted.
3 + + + + - + - - III Do.
...
...
„ II, n i l
.
4
+ + + + - + - - III
Do.
...
...
„ I I I , 9 .
Bile salt lactose, medium.
+
-
5 + + + + - + - - III Do.
...
...
„ IV, 1.
6 + + + + - + - - III Do.
7 + + + + - + - - III Do.
1 tube of 20 cc.
... ....
...
....
1
...
8 + + + + - + - -
I I I Do.
...
... Class I, nil .
9 + + + + - + - -
I I I
Do.
...
...
„ II, 10.
2 tubes of 10 cc.
2
...
10 + + + + - + - -
I I I Do.
...
... „ III, nil.
3 „ 5 cc.
3
. . .
3 „ 1 cc.
... ....
...
...
3
...
3 „ .1 cc.
...
...
....
. . .
3
3 „ .01 cc.
...
...
...
. . .
3
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
REPORT.
Bacteriologically the Service Reservoir water shows an improvement as is seen by the reduction of the
number of excremental organisms which belong to a resistant type; the water from the distributary system
is such the same as it was last quarter.
Chemically all the samples are better this quarter, the total solids have diminished considerably.
Chemical Analyses.
SAMPLE No. I.
SAMPLE NO. III.
Physical appearances.
Colour and
Transparency.
Colourless and clear.
Colourless and clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids ...
,.,
...
...
... Parts per 100,000 . . .
41.000
40.800
Temporary hardness
...
...
...
Do....
17.000
17.000
Permanent hardness
...
...
...
Do....
2.000
2.000
Total hardness
... ... ... ...
Do.
19.000
19.000
Chlorine
...
...
...
D o . . .
4 . 2 6 0
4.260
Ammoniacal nitrogen
...
...
..
Do.
0 003
Trace.
Albuminoid nitrogen
...
...
...
Do..
Trace.
Trace.
Oxygen absorbed ( Tidy's Process) ...
Do.
0 . 0 2 4
0.017
Nitric nitrogen ...
...
...
...
Do.
. . . 0.350
0.350
QUALITATIVE.
Nitrites...
...
...
...
......
...
...
. . .
N i l .
Nil.
Sulphates ...
...
...
...
......
...
...
. . .
Present.
Present.
Phosphates...
...
...
...
......
. . .
. . .
Nil.
Nil.
Iron, poisonous metals ...
...
......
...
...
. . .
Nil, nil.
Nil, nil.
14 (a)
REPORT.
Bacteriologically the water from the headworks is very good as it only shows one organism
in 5 cc. and the total count is markedly low ; last quarter much the same was noted although
the number of organisms present in the total count was higher. The first tap after the Service
Reservoir however shows a totally different state of affairs ; it contains excremental organisms
in 1 cc. and nearly one-third of these prove to be Bacillus Coli communis showing that it has
been grossly contaminated. The Service Reservoir should be carefully examined in order to find
out the explanation of this contamination. The water in the distributary system shows some-
improvement but it has not reached the good quality of the water from the headworks.
Chemically the water is much the, same as last quarter.
Chemical Analyses.
SAMPLE I.
SAMPLE IV.
Physical appearances.
Colour and
Transparency.
Colourless and
clear.
Colourless and
clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids ... ... ... ...
... ... ... Parts per 100,000 ...
56.400
58.400
Temporary hardness
. . .
. . .
. . .
... ...
Do.
. . .
13.000
13.000
Permanent hardness ...
... ... ...
...
. . .
Do.
. . .
1.000
1.000
Total hardness
... ... ...
...
... ...
D o .
. . .
1 4 . 0 0 0
14. 000
Chlorine
...
... ... ... ...
. . .
Do.
...
2.130
2.130
Ammoniacal nitrogen
. . .
. . .
. . .
... ...
Do.
. . .
Trace.
Trace.
Albuminoid nitrogen
...
. . . . . .
. . .
...
D o .
. . .
T r a c e .
Tr ace.
Oxygen absorbed ( Tidy's Process)
. . .
...
. . .
Do.
. . . 0. 026
0.017
Nitric nitrogen
...
. . .
...
. . .
. . . . . .
Do.
. . .
0.150
0.127
QUALITATIVE.
Nitrite
...
. . . . . .
...
. . . . . .
. . .
. . .
. . .
N i l .
N i l .
Sulphates
...
. . .
. . .
. . .
. . . . . .
...
. . .
. . . . . .
P r e s e n t .
P r e s e n t .
Phosphates
...
. . .
. . .
. . .
. . .
. . .
...
. . .
. . .
. . .
Nil.
Nil.
Iron, poisonous metals
. . .
... ... ...
. . .
. . .
...
. . .
...
Nil, nil.
Nil, nil
16
Chemical Analyses.
SAMPLE No. I.
SAMPLE No. III.
Physical appearances.
Colour and
Transparency .
Colourless and clear.
Colourless and clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids ...
... Parts per 100,000 ...
5 2 . 0 0 0
52.400
Temporary hardness ... ... ...
Do.
...
1 8 . 0 0 0
17.000
Permanent hardness ... ...
Do.
...
1.000
2 . 0 0 0
Total hardness ... ...
Do.
1 9 . 0 0 0
1 9 . 0 0 0
Chlorine...
D o . . .
7.810
8.160
Ammoniacal nitrogen ......
Do.
...
0.007
Trace.
Albuminoid nitrogen ... ... ...
Do.
0 . 0 0 4
0 . 0 0 6
Oxygen absorbed (Tidy's Process) ...
Do....
0.039
0 . 0 2 9
Nitric nitrogen
... ... ...
Do. ...
0 . 0 5 0
0 . 0 6 2
QUALITATIVE.
Nitrites
... ... ... ... ...
... ...
Nil.
Nil.
Sulphates
... ... ... ... ... ... ...
Present.
Present.
Phosphates ... .. ... ... ... ... ... ...
N i l . Nil.
Iron, poisonous metals... ... ... ... ... ...
Nil,nil.
N i l , n i l
20
Chemical Analyses.
SAMPLE I.
SAMPLE I I .
Physical appearances.
Colour and
Transparency.
Colourless and clear.
Colourless and clear .
Smell.
None.
None.
QUANTITATIVE
.
Total solids ...
...
...
. . . Parts per 100,000
. . .
46.400
45.000
Temporary hardness
...
...
. . .
Do. ...
26.000
29.500
Permanent hardness
...
. . .
Do. ...
4.000
2.500
Total hardness
...
. . .
. . .
. . .
Do.
...
30.000
32.000
Chlorine
...
...
...
...
. . .
Do. ...
4.260
2.485
Ammonia cal nitrogen
...
...
. . .
Do. . . .
0.003
Trace.
Albuminoid nitrogen
...
. . .
. . .
. . .
Do. . . .
0.004
Trace.
Oxygen absorbed ( Tidy's Process) ...
Do. ...
0.036
0.009
Nitric nitrogen
...
...
...
. . .
Do. ...
0.025
0.100
QUA
L I T A T I V E
Nitrites
...
...
...
...
...
...
. . .
Nil.
Nil.
Sulphates ...
...
...
...
...
...
...
. . .
Present,
Present.
Phosphates ...
...
...
...
...
...
...
...
. . .
Nil.
Nil.
Iron, poisonous metals
...
...
...
...
...
...
. . .
Nil, nil.
Nil, nil.
SAMPLE No. III.
Physical appearances.
Colour and
Transparency.
Colourless and clear,
Smell.
N o n e .
Q U A N T I T A T I V E .
Total solids
...
...
...
. . .
Parts per 100,000
. . .
45.600
Temporary hardness
... ...
Do. . . .
30.000
Permanent hardness...
...
...
...
. . .
Do. . . ,
2.000
Total hardness
......
...
...
Do. . . ,
32.000
Chlorine
...
...
...
...
...
...
...
...
Do. . . .
2.485
Ammoniacal nitrogen
...
...
. . . . . . .
Do. . . .
T r a c e .
Albuminoid nitrogen
. . .
. . .
Do. . . .
0 . 0 0 3
Oxygen absorbed (Tidy's Process)...
...
Do. . . .
0.018
Nitric nitrogen
...
... ...
...
Do. . . .
0.100
QUALITATIVE.
N i t r i t e s
. . .
. . .
. . .
. . .
. . .
. . .
. . .
. . .
. . .
Nil.
Sulphates
...
...
...
...
...
Present.
Phosphates ...
...
...
...
...
...
. . .
Nil.
Iron, poisonous metals ... ... ... ...
Nil, nil.
22
REPORT.
Bacteriologically the unfiltered water is more unsatisfactory than the sample examined
last quarter. The total count and the number of excremental organisms are both high.
The water from the fountain near Big Teppakulam which failed to show evidence of
fœcal organisms in 60 cc. last quarter now contains at least hundred such organisms, probably
due to some defect in the distributary system. The total number of organisms in this sample
has also increased.
Chemically the water is harder and the total solids higher than usual ; this together with
the high figure for chlorine points to a sub-soil source. There is also evidence of organic
pollution.
Chemical Analyses.
SAMPLE I.
SAMPLE IV.
Physical appearances.
Colour and
Transparency.
Yellowish and hazy.
Colourless and clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids
...
...
...
...
... Parts per 100,000 ...
88.000
72.000
Temporary hardness ...
... ... ...
Do.
...
27.500
25.000
Permanent hardness ...
... ... ...
Do.
...
2.500
2.000
Total hardness ... ... ...
...
Do.
...
30.000
27.000
Chlorine
...
...
...
...
...
Do.
. . .
22.010
19.880
Ammoniacal nitrogen ...
... ...
...
Do.
...
Trace.
Trace.
Albuminoid nitrogen ...
...
... ...
Do.
. . .
0.011
0.007
Oxygen absorbed ( Tidy's Process) ... ...
D o .
...
0.091
0.045
Nitric nitrogen
... ...
... ...
Do.
...
0 . 0 2 5
0.037
QUALITATIVE.
Nitrites
...
...
...
...
...
...
... ...
. . .
Nil.
Nil.
Sulphates ...
...
... ... ... ... ...
. . .
...
Present.
Present.
Phosphates ... ... ... ... ... ... ... ...
...
Nil.
Nil.
Iron, poisonous metals ...
... ... ...
... ... ...
Nil, nil.
Nil, nil.
SAMPLE I.
SAMPLE II.
24
SAMPLE V.—TAP IN FRONT OF COLLECTOR'S OFFICE—BUDA
¬VARAMPET.
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 o 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 an
d R e m a r k s .
Total colonies per cc. on agar at 37° C.—400.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
...
...
...
. . .
1
. . .
1
+ + - - - - + - IV B. Coscoroba
... Group I, n i l .
2
+ + - - - - + - IV
Do.
...
„ II, ni l .
2 tubes of 10 cc.
...
...
...
. . .
2
. . .
3
+ + - - - - + - IV
Do.
...
„ III,n i l .
3
„
5 cc.
...
...
...
. . .
2
1
4
+ + - - - - + - IV
Do.
...
„ I, 10.
3
„
1 cc. ... ... ... ...
. . .
3
5
+ + - - - - + - IV
Do. . . .
3
„
. 1 c c .
. . .
. . .
. . .
. . .
. . .
3
6
+ + - - - - + - IV
Do. . . .
3
„
.01 cc. ... ... ...
...
. . .
3
7
+ + - - - - + - IV
Do. . . .
Fœcal bacilli in 5 cc. and upwards.
8 + + - - - - + - IV
Do.
...
Class I, nil.
9
+ + - - - - + - IV
Do.
...
„ II, 10.
No vibrios in 100 cc.
10 + + - - - - + - IV
Do.
...
„ III,n i l .
SAMPLE VI.—TAP IN BASTIAN ROAD TERMINUS—FOUNTAIN
No. 12.
1
+ - - + - - + - I B. Acidi lactici ... Group I,10.
Total colonies per cc. on agar at 37° C.—400.
2
+ - - + - - + - I
Do.
...
„ II, nil.
3
+ - - + - - + - I
Do.
...
„ III, nil.
Bile salt lactose, medium.
+
-
4
+ - - + - - + - I
Do.
...
„ IV, nil.
5
+ - - + - - + - I
Do.
...
6
+ - - + - - + - I
Do.
...
1 tube of 20 cc. ...
...
1
. . .
7
+ - - + - - + - I
Do.
...
8
+ - - + - - + - I
Do.
...
Class I, nil.
2 tubes of 10 cc. ...
...
...
...
2
. . .
9
+ - - + - - + - I
Do.
...
„ II, 10.
3 „
5 cc.
. . .
. . .
2
1
1 0 + - - + - - + - I
Do.
...
„ III, nil.
3 „
1 c c .
. . .
. . .
3
. . .
3 „
. 1 c c .
. . .
. . .
. . .
3
3
„
. 0 1 c c .
. . .
. . .
. . .
3
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
REPORT.
Baćteriologically the water both at the headworks and in the distributary systems has deteriorated since
last quarter though both may still be considered potable.
Chemically all the samples show high figures for chlorine. These results are probably due to low state
of the canal supply at this season.
Chemical Analyses.
Physical appearances.
Colour and
Transparency.
White and opaque.
Yellowish and hazy.
Smell.
None.
None.
QUANTITATIVE.
Total solids ...
... ... ...
Parts per 100,000 ...
37.000
35.000
Temporary hardness
...
...
...
Do.
...
9.500
9.000
Permanent hardness
...
...
...
Do.
...
0.500
1.000
Total hardness
...
...
...
Do.
...
10.000
10.000
Chlorine
...
...
...
Do.
...
6.035
6.035
Ammoniacal nitrogen
...
...
...
Do.
...
0.006
Trace.
Albuminoid nitrogen
...
...
...
Do.
...
0.020
0.016
Oxygen absorbed (Tidy's Process ) ...
...
Do.
...
0.118
0.109
Nitric nitrogen
...
...
...
Do.
...
0.025
0.025
QUALITATIVE.
Nitrites
...
...
...
...
...
...
...
...
Nil.
Nil.
Sulphates
...
...
...
...
...
...
...
...
Present.
Present.
Phosphates
...
...
...
...
...
...
...
...
Nil.
Nil.
Iron, poisonous metals
...
...
...
...
...
...
...
...
Nil, nil.
Nil, nil.