NationalLibraryOfScotland/medical-history-of-british-india huggingface dataset:
25
SAMPLE III.
SAMPLE VI.
Physical appearances.
Colour and
Transparency.
Yellowish but clear.
Yellowish but clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids ... ...
...
... ...
Parts per 100,000
...
34.000
34.600
Temporary hardness
... ... ... ...
Do... ...
1 0 . 0 0 0
9.000
Permanent hardness ...
... ... ...
Do.
..
1 . 0 0 0
1.000
Total hardness
... ... ... ...
Do.
..
11.000
10.000
Chlorine
... ... ... ... ...
Do.
6.035
6.035
Ammoniacal nitrogen
... ... ...
Do.
...
Trace.
Trace.
Albuminoid nitrogen...
...
...
Do.
...
0.017
0.007
Oxygen absorbed ( Tidy's Process) ...
...
Do... ...
0 . 1 0 0
0.073
Nitric nitrogen
...
...
...
...
Do... . . .
0 . 0 2 5
0.025
QUALITATIVE.
Nitrites
...
... ...
... ...
... ...
...
...
Nil.
Nil.
Sulphates ...
...
...
...
...
...
... ...
...
Present.
Present.
Phosphates ...
...
...
...
...
...
...
...
...
Nil.
Nil.
Iron, poisonous metals
...
...
...
...
...
...
...
Nil, nil.
Nil, nil.
29
SAMPLE No. IX.
SAMPLE No. VIII.
Physical appearances.
Colour and
Transparency.
Slightly yellowish
but clear.
Slightly yellowish
but clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids ... ...
...
...
...
Parts per 100,000 ...
3.000
3.800
Temporary hardness
... ... ...
...
Do.
...
Nil.
0.500
Permanent hardness
... ... ...
Do.
...
1.000
1.000
Total hardness
,.. ,.. ,.. ,..
Do.
...
1.000
1.500
Chlorine
,.. ,.. ,.. ,..
Do.
...
0.284
0.426
Ammoniacal nitrogen,..
,.. ,..
...
Do.
...
0.003
T r a c e .
Albuminoid nitrogen
,.. ,.. ,..
Do.
...
0.012
0 . 0 0 4
Oxygen absorbed ( Tidy's Process) ...
Do.
...
0.019
0.036
Nitric nitrogen... ...
...
...
. . .
Do.
...
Trace.
0.050
QUALITATIVE.
Nitrites
...
...
... ...
...
...
...
...
...
Nil.
Nil.
Sulphates ...
„,
...
...
...
... ...
...
...
Nil.
Trace.
Phosphates ...
...
...
...
...
_
... ....
Nil.
Nil.
Iron, poisonous metals
... ...
...
...
... ...
...
Nil, Nil.
Nil, Nil.
31
SAMPLE V.—FOUNTAIN IN FRONT OF POLICE STATION.
N u m b e r . L a c t o s e .
S a c h a c c 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 t i l i t y .
Group.
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37° C.—150.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
...
...
...
...
1
...
1
+ - - - - - + + I B. Grunthal
... Group I, 10.
2 tubes of 10 cc.
...
...
... ... 2
...
2 + - - - - - + + I
Do.
...
,, II, nil.
3 ,, 5cc. ...
... ... ...
3 ... 3 + - - - - - + + I
Do.
3 ,,
1cc. ... ... ... ...
1
2
4 + - - - - - + + I
Do.
... ,, III, nil.
3 „
.1cc. ...
... ... ......
3 5 + - - - - - + + I
Do.
... „ IV, nil.
3 ,, .01cc ... ... ...
...
...
3
6 + - - - - - + + I
Do.
7 + - - - - - + + I
Do.
... Class I, nil.
Fœcal bacilli in 5 cc. and upwards.
8 + - - - - - + + I
Do.
...
„
11, nil .
9 + - - - - - + + I
Do.
No vibrios in 100 cc.
10 + - -
-
- - + + I
Do.
... „ III, 10.
REPORT.
Bacteriologically the canal water shows a high count both as regards total colonies as well as fœtal
bacteria ; this is probably due to the recent floods as on previous occasions. Sample II, water from settling
tank, well exemplifies purifying action of storage, the fœtal germs diminishing two times and the total
organisms fourteen times. There is a deterioration again in the distributary system as seen by the analysis
of the samples III, IV and V, from tap in head water-works, pillar fountain near Port Railway Station and
fountain in front of Police Station, respectively. These results are not so satisfactory as last quarter. The
absence of vibrios in all the samples as contrasted with their presence in two of the samples last quarter is
worthy of note.
Chemically the unfiltered water shows a fair amount of organic matter which has been to some extent
removed by filtration.
Chemical Analyses.
SAMPLE II.
SAMPLE IV.
Physical appearances.
Colour and
Transparency.
Yellowish and hazy.
Slightly yellowish,
but clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids
...
...
...
...
Parts per 100,000 ...
18.000
17.000
Temporary hardness ...
...
...
Do.
... 5.000
4.500
Permanent hardness ...
... ...
Do.
...
1.000
1.500
Total hardness ...
...
... ...
Do.
...
6.000
6.000
Chlorine
...
...
...
...
Do.
...
3.195
3.195
Ammoniacal nitrogen ...
...
...
Do.
...
0.003
Trace.
Albuminoid nitrogen ...
...
...
Do.
...
0.036
0.012
Oxygen absorbed ( Tidy's Process ) ...
Do.
...
0.278
0.121
Nitric nitrogen
...
... ...
Do.
...
0.037
0.062
QUALITATIVE.
Nitrites
... ... ... ... ... ... ... ...
Nil.
Nil.
Sulphates
...
...
...
...
...
...
...
...
Present.
Present.
Phosphates
...
...
...
... ... ... ... ...Nil.
Nil.
Iron, poisonous metals ... ...
... ... ... ... ...
Nil, nil.
Nil, nil.
32
CONJEEVERAM.
WATER SAMPLES TAKEN—20TH JUNE 1911.
REMARKS.—The river-bed of the Vagavati was dry when samples were taken. The supply is intermittent. There was no
rain since last analysis.
Bacteriological Analyses.
SAMPLE I.—TAP IN FRONT OF PUMPING STATION.
N u m b e r . Lact os e.
S a c c h a r o s e .
Du l c i t e .
Ad o n i t e . I nul i ne.
Vo g e s a n d P r o s k . Indol .
Mot i l i t y.
Gr o u p .
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37° C.–20.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
...
...
...
. . . . . .
1
1 + + - + + + - - IV B. 98
...
... Group I, nil .
2 tubes of 10 cc.
...
...
...
...
1
1
3 „ 5 cc.
...
...
...
. . 1
2
2 + + - + - + - - IV B. Lactis ærogenes.
„ I I ,
n i l
.
3 „ 1 cc.
...
...
...
. . .
. . .
3
3 + + - + - + - - IV
Do
„ III, nil.
3 „ .1 cc.
...
...
...
...
. . .
3
4 + + - + + + - - IV B. 98
„ I V , 1 0 .
3 „ .01 cc.
...
...
...
. . .
3
5 + + - + + + - - IV Do.
Fœcal bacilli in 10 cc. and upwards.
6 + + - + - + - - IV B. Lactis ærogenes.
7 + + - + + + - - IV B.98.
8 + + - + - + - - IV B. Lactis ærogenes. Class I, 6.
9 + + - + + + - - IV B.98
...
... „ II, 4.
No vibrios in 100 cc.
10 + + - + + + - - IV
Do.
...
...
„ III, nil.
SAMPLE II.—TAP ADJOINING THE SERVICE RESERVOIR.
Total colonies per cc. on agar at 37° C.–40.
Bile salt lactose, medium.
+
-
No lactose fermenters.
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.—TAP NEAR SEEVARAM TOLL-GATE.
Total colonies per cc. on agar at 37° C.–90.
Bile salt lactose, medium.
+
-
No lactose fermenters.
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.
REPORT.
Bacteriologically all the samples give good results as regards total counts as well as fœcal organisms.
Sample I, from tap in front of pumping station, however, shows signs of recent fœcal contamination as
indicated by the presence of organisms of class I. The absence of lactose fermenters in samples 2 and 3,
viz., tap adjoining the Service Reservoir and tap near Seevaram toll-gate respectively is satisfactory.
Chemically the water continues to give good results.
33
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
...
21.000
21.000
Temporary hardness
...
...
...
Do. 8.500
8.500
Permanent hardness ....
D o .
1.500
1.500
Total hardness
.
...
..
...
..
Do.
10.000
10.000
Chlorine
...
...
...
...
Do..
2 . 8 4 0
2 . 8 4 0
Ammoniacal nitrogen
...
...
...
Do. Trace.
Trace.
Albuminoid nitrogen.. ...
...
...
D o .
0.003
Trace.
. . .
Oxygen absorbed (Tidy's Process)...
D o .
0.024
0.012
Nitric nitrogen..
.. ....
...
D o .
0.100
0.125
QUALITATIVE.
Nitrites
...
...
...
.. .. . ... ... . ...
Nil .
Nil.
Sulphates
...
...
...
...
...
...
...
...
Present.
Present.
Phosphates ...
...
...
...
...
...
...
...
...
Nil.
Nil .
Iron, poisonous metals
...
....... ...
...
... . .
Nil, nil.
Nil, nil.
35
REPORT.
Bacteriologically the total counts as well as the fœcal organisms in the sample from the
first tap indicate that the filtration continues to be good ; but as on the previous occasion the water
has become contaminated in the distributary system and this time to a much greater extent. The
taps near the beach and Railway Station show respectively a twelve-fold and sixty-fold increase
in the number of fœcal germs without a corresponding increase of the non-fœcal ones, pointing
to some defect in the pipes.
Chemically the water shows an improvement after filtration as evidenced by the reduction
in the amount of organic matter. The continuation of the rise of the figures for chlorine which
has been noticed time after time is interesting in view of the remarks made on the last occasion
regarding the probable cause.
Chemical Analyses.
SAMPLE I.
SAMPLE IV.
Physical appearances.
Colour and
Transparency.
Yellowish and hazy. Slightly yellowish but
clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids
...
... ... ...
... Parts per 100,000 ...
33.000
3 2 . 0 0 0
Temporary hardness ...
...
...
...
Do.
...
7.000
7.000
Permanent hardness ...
... ...
...
Do.
...
6.000
6.000
Total hardness ... ... ... ...
...
Do.
. . .
13.000
1 3 . 0 0 0
Chlorine
... ... ... ... ...
Do.
...
11.360
11.005
Ammoniacal nitrogen ...
...
...
...
Do.
. . .
0.003
Trace.
Albuminoid nitrogen ...
...
... ...
Do.
...
0 . 0 1 4
0 . 0 0 7
Oxygen absorbed ( Tidy's Process)... ...
D o .
. . .
0.165
0 . 0 8 2
Nitric nitrogen...
...
...
...
Do.
...
Nil.
Trace.
QUALITATIVE.
Nitrites ... ... ... ... ... ... ... ...
. . .
Nil.
Nil.
Sulphates ... ... ... ... ... ... ... ... ...
Present.
Present.
Phosphates ... ... ... ... ... ... ... ...
...
Nil.
Nil.
Iron, poisonous metals ...
...
...
...
...
. . .
Nil, nil.
Nil, nil.
37
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 ...
47.000
48.000
Temporary hardness
...
...
...
Do.
...
22.500
22.500
Permanent hardness ...
...
...
...
Do.
...
0.500
0.500
Total hardness ...
...
...
...
...
Do.
...
23.000
23.000
Chlorine
...
...
...
...
...
Do.
...
4.260
4.260
Ammoniacal nitrogen ...
...
...
Do.
...
Trace.
Trace.
Albuminoid nitrogen ...
...
...
...
Do.
...
Trace.
0.006
Oxygen absorbed (Tidy's Process)
...
...
Do.
...
0.028
0.042
Nitric nitrogen ...
...
...
...
...
Do.
...
0.087
0.100
QUALITATIVE.
Nitrites
...
...
...
...
...
...
...
Nil.
Nil.
Sulphates
...
...
...
...
...
...
...
Present.
Present.
Phosphates
...
...
...
...
...
...
...
Nil.
Nil.
Iron, poisonous metals
...
...
...
...
...
...
...
Nil, nil.
Nil, nil.
39
REPORT.
The results of bacteriological analysis do not at all compare favourably with those of the
last quarter when fœcal bacilli were absent in three out of four samples ; on this occasion the
samples are of medium quality containing one lactose fermenter in 5 cc. The presence of the
most objectionable fœcal germs in the sample from the tap in Saidapet, in the absence of a
corresponding increase in the total count, is more likely to be accidental than due to any serious
defect in the pipes.
Chemically the water continues to be soft but the organic matter is on the high side and
probably of animal origin.
Chemical Analyses.
SAMPLE I.
SAMPLE III.
Physical appearances.
Colour and
Transparency.
Yellowish and hazy.
Slightly yellowish
but clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids ...
...
...
...
... Parts per 100,000 ...
19.600
19.000
Temporary hardness
... ...
...
D o .
...
5 . 5 0 0
5.500
Permanent hardness
. . .
. . .
. . .
Do.
...
1.500
1.500
Total hardness
...
...
. . .
...
Do.
...
7.000
7.000
Chlorine
...
... ... ... ...
Do.
. . .
1.065
1.065
Ammoniacal nitrogen
...
...
...
Do.
. . .
0.003
Trace.
Albuminoid nitrogen
...
. . . . . .
D o .
...
0.029
0.016
Oxygen absorbed ( Tidy's Process)
...
D o .
...
0.247
0.141
Nitric nitrogen
... ... ... ...
Do.
. . .
0.025
0 . 0 5 0
QUALITATIVE.
Nitrites...
. . .
. . .
. . .
. . .
. . .
. . .
. . . . . .
N i l .
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 September 1911, being Part III
of Appendix II to the Annual Report of the King Institute
of Preventive Medicine, Madras, for the year 1911.
41
REPORT.
Bacteriologically as on previous occasions the floods are responsible for the high total and
fœcal counts and the objectionable class of fœcal organisms in the unfiltered river water. The
efficient working of the infiltration gallery is again evident in the considerable reduction of the
number of both classes of organisms in the water after filtration. The deterioration of the
water drawn from the tap at the Railway Station, which shows an increase in the number of
fœcal bacilli without a corresponding rise in the total count is difficult to explain but by assuming
that there is some leakage in that section of the pipe line. With the exception of this sample
the water supplied to the town is of fair quality bacteriologically.
Chemically though filtration has diminished the total solids, the filtered water is harder
than the unfiltered, a circumstance which has been frequently noticed before and has been
attributed to the infiltration gallery tapping some other source as well. The filtration has .
greatly reduced the amount of organic matter which seems to be mostly of vegetable origin.
Chemical Analyses.
SAMPLE No. I.
SAMPLE No. IV.
phisical appearences.
Colour and
Transparency
Yellowish and
opaque.
White and
o p a q u e .
Smell.
None.
None.
QUANTITATIVE.
Total solids
Parts per 100,000
3 7 · 4 0 0
1 4 · 0 0 0
Temporary hardness
Do.
2·500
5·000
Permanent hardness
Do.
2·500
2·000
Total hardness
Do.
5·000
7·000
Chlorine
Do.
0·710
1·065
Ammoniacal nitrogen
Do .
Trace.
Trace.
Albuminoid nitrogen
Do.
0·014
0·003
Oxygen absorbed (Tidy' s process)
Do.
0·283
0·039
Nitric nitrogen
Do.
Nil.
Nil.
Nitrites
Nil.
Nil.
Sulphates
Trace.
Present.
Phosphates
Nil.
Nil.
Iron, poisonous metals
Nil, nil.
Nil, nil.
43
REPORT.
Bacteriologically all the samples are poor in quality. The water seems to be worse after
passing through the infiltration gallery being richer in total organisms. But a certain amount
of bacterial purification is evident after the passage of the water through the pipes, though the
varieties in the fœcal organisms continue throughout. The deterioration of the different water
samples as compared with former analyses is an undesirable feature which cannot be wholly put
down to the high floods in the Coleroon.
Chemically the water is good as usual.
Chemical
SAMPLE I.
SAMPLE IV.
Physical appearances.
Colour and
Transparency.
Yellowish and
opaque.
White and hazy
Smell.
None.
None.
QUANTITATIVE.
Total solids
Parts per 100,000
38·000
12·000
Temporary hardness
Do.
2·000
3·500
Permanent hardness
Do.
3·000
2·500
Total hardness
Do.
5·000
6·000
Chlorine
Do
0·710
0·710
Ammoniacal nitrogen
Do.
Trace.
Trace.
Albuminoid nitrogen
Do.
0·016
0·003
Oxygen absorbed (Tidy's Process)
Do.
0·185
0.039
Nitric nitrogen
Do.
Trace.
Trace.
QUALITATIVE.
Nitrites
Nil.
Nil.
Sulphates
Trace.
Present.
Phosphates
Nil.
Nil.
Iron, poisonous metals
Nil, nil.
Nil, nil.
43 (b)
REPORT.
The Red. Hills lake water has considerably deteriorated since the previous quarter. The
water supplied to Malayaperumal street shows gross signs of pollution B. Coli communis being
almost present as a pure culture. This state strongly points to a mixture of drainage water
through some leakage in the pipes ; on the previous occasion the same sample showed the
presence of vibrios.
Chemically excepting the considerable diminution of the total solids present in the Saidapet
toll-gate sample, there has been practically no change in the quality of the samples analysed this
quarter.
Chemical Analyses.
SAMPLE II.
SAMPLE IV.
P hysical appearances.
Colour and
Transparency.
Yellowish and hazy.
Yellowish and hazy.
Smell.
None.
None.
QUANTITATIVE.
Total solids
Parts per 100,000
30·000
2 9 · 4 0 0
Temporary hardness
Do.
6·000
6.000
Permanent hardness
Do.
2·000
2·000
Total hardness
Do.
8·000
8·000
Chlorine
Do.
5·680
5·680
Ammoniacal nitrogen
Do.
0 ·
. 0 0 4
0·010
Albuminoid nitrogen
Do.
0·049
0·058
Oxygen absorbed (Tidy's Process)
Do.
0·209
0·190
Nitric nitrogen
Do.
Trace.
Trace.
QUALITATIVE.
Nitrites
Nil.
Nil.
Sulphates
Present.
Present.
Phosphates
N i l .
N i l .
Iron, poisonous metals
N i l , n i l .
Nil, nil.
77
SAMPLE V.—
TAP IN WESTERN END IN KILCHUPET ROAD.
Nu mb 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 .
Ad o n i t e . I nul i ne .
V o g e s a n d P r o s k .
I n d o l .
Mot i l i t y. G r o u p .
Name of Bacilli.
G r o u p a n d
R e m a r k s .
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. 106.
. . .
. . .
Group
I ,
n i l .
2 tubes of 10 cc.
. . . . . .
. . .
. . . 2
. . . 2 +
+ — — — — + + IV Do.
... ...
, , II, nil.
3 ,,
5 cc.
. . .
. . .
. . .
. . . 1
2
3 +
+ — — — — + + IV Do.
. . .
. . .
, , III, 1
3 ,,
1 cc.
. . .
. . .
. . .
. . . 1
2 4 +
+ — — — — + + IV Do.
. . .
. . . ,, IV, 9 .
3
, ,
1 c c .
...
...
... ... ...
2
5 +
+ — — — — + + IV Do.
. . .
. . . , ,
3 „ 01 cc.
...
...
. . .
. . . . . .
2
6 +
+ — — — — + + IV Do.
7 + +
— — — — + + IV Do.
Fœcal bacilli in 10 cc. and upwards.
8 + + + — — — + + III B. 71
. . .
... Class I, nil.
9 + + — — — — + + IV B. 106
. . .
. . .
, , II,10 .
No vibrios in 100 cc.
10 + + — — — — + + IV Do.
...
... ,, III, nil.
REPORT.
The water has improved considerably in quality as compared with its condition in the previous quarter.
There has been a marked reduction of the organisms present in both the total counts and fœcal pollution.
Chemical analysis also corroborates the bacterial result.
Chemical Analyses.
SAMPLE No. II. SAMPLE No. V.
Physical appearances.
Colour and
T r a n s p a r e n c y .
White and
opaque.
White and
hazy.
Smell.
None.
None.
QUANTITATIVE.
Total solids ... ...
... ... ... ...
... Parts per 100,000 ...
21.000
19.000
Temporary hardness
. . .
. . . ...
...
. . .
Do.
...
7.000
6.500
Permanent hardness ...
... ... ...
...
...
Do.
...
2.000
2.000
Total hardness
...
...
...
...
... ...
Do. Do.
. . .
9.000
8.500
Chlorine
... ... ... ...
...
...
...
Do.
. . .
0.887
0.887
Ammoniacal nitrogen
. . .
... ...
...
...
Do.
...
0.006
Trace.
Albuminoid nitrogen
...
...
...
...
. . .
Do.
...
0.049
0.022
Oxygen absorbed (Tidy' s Process) ...
...
. . .
...
Do.
...
0.210
0.076
Nitric nitrogen
...
... ...
...
. . . ...
Do.
...
Nil.
Trace.
QUALITATIVE.
Nitrites
. . .
. . .
. . .
. . .
. . .
. . .
. . .
...
. . .
. . .
...
Nil.
Nil.
Sulphates ...
...
. . . . . .
. . .
. . .
. . . ...
...
... ...
Trace.
Trace.
Phosphates ... ...
...
. . .
. . .
. . . . . .
...
. . .
... ...
Nil.
Nil.
Iron, poisonous metals ... ... ... ...
. . .
...
. . .
. . . . . .
Ni l , ni l
Nil, nil.
45
Chemical Analyses.
SAMPLE I.
SAMPLE III.
Physical appearances.
Colour and
Transparency.
White and Opaque.
Colourless and clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids
...
...
...
...
... Parts per 100,000 ...
12.000
11.400
Temporary hardness
...
...
...
...
Do.
...
5.000
5.000
Permanent hardness
...
...
...
...
Do.
. . .
2.000
2.000
Total hardness ...
...
...
...
...
Do.
.. .
7.000
7 . 0 0 0
Chlorine
...
...
... ... ... ...
Do.
. . .
1.065
1.065
Ammoniacal nitrogen
... ...
Do.
...
Trace.
Trace.
Albuminoid nitrogen
...
...
. . .
Do.
. . .
Trace.
Trace.
Oxygen absorbed (Tidy's Process)
...
...
Do.
...
0.019
0.010
Nitric nitrogen ...
...
...
...
...
Do.
...
0.025
0.050
QUALITATIVE.
Nitrites
...
...
...
...
...
. . .
Nil.
Nil.
Sulphates
...
...
...
...
...
...
...
...
Trace.
Trace.
Phosphates
...
...
...
...
...
. . .
Nil.
Nil.
Iron, poisonous metals
...
Nil, nil .
Nil, nil.
45 (a)
BEZWADA.
WATER SAMPLES TAKEN—3RD AUGUST 1911.
REMARKs.—The supply is intermittent. There has been about 12.50 inches of rain since last analysis.
Bacteriological Analyses.
SAMPLE I.—FIRST TAP AFTER SERVICE 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
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.—110.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
. . .
. . .
. . .
. . .
. . .
1
. . .
1 + + - + - + - - IV B. Lactis ærogenes.
2 tubes of 10 cc.
. . .
. . .
. . .
. . .
. . .
2
. . .
2 + + - + - + - - IV
Do.
Group I, nil.
3 „ 5 cc.
...
. . .
. . .
. . .
3
. . .
3 + + - + - + - - IV
Do.
„ II, nil.
3 „ 1cc.
. . .
. . .
. . .
. . .
2
1 4 + + - + - - - - IV B. Gasoformans ...
„ III, nil.
3 „ .1 cc.
. . .
. . . . . .
. . .
1
2 5 + + - + - - - - IV
Do.
...
„ IV, 10.
3 „ .01 cc.
..
...
. . .
. . . . . .
3 6 + + - + - + - - IV B. Lactis ærogenes.
7 7 + + - + - + - - IV
Do.
8 + + - + - + - - 1V
Do.
Class I, nil.
Fœcal bacilli in 1 cc. and upwards.
9 + + - + - + - - IV
Do.
, , II, 10.
No vibrios in 100 cc.
10 + + - + - +
-
- IV
Do.
,, III, nil.
SAMPLE II—TAP ON THE ELLORE ROAD CLOSE TO TOLL-GATE. 1 + - - + - - + - I B. Acidilactici.
2 + - - + - - + - I
Do.
... Group I, 10.
Total colonies per cc. on agar at 37° C.—120.
3 + - - + - - + - I
Do . . . . .
, , II, nil.
4 + - - + - - + + I B.1 ... ... ... ... „ III, nil.
5 + - - + - - + + I Do. ... ... ... „ IV, nil.
Bile salt lactose, medium.
+
-
6 + - - + - - + + I Do.
7 + - - + - - + - I
B. Acidilactici.
8 + - - + - - + - I
Do. . . .
Class I, nil.
1 tube of 20 cc.
. . .
. . .
. . .
. . . 1
. . .
9 + - - + - - + - I
D o . . . .
, ,
I I ,
n i l l .
2 tubes of 10 cc.
. . .
. . .
. . .
. . .
2
. . . 10 + - - + - - + - I
Do. . . .
, ,
I I I , 10.
3 „ 5 cc.
. . .
. . .
. . . . .
2
1
3 „ 1 cc.
...
. . .
. . .
. . . 1
2
3 „ .1 cc.
. . .
. . .
. . .
. . . ...
3
3 „ 01 cc.
. . .
. . .
. . .
. . . . . .
3
Fœcal bacilli in 5cc. and upwards.
No vibrios in 100 cc.
1 + - - - - - + - I B. B.Vesiculosus.
SAMPLE III.—TAP NEAR NUZVID TOLL-GATE.
2 + - - - - - + - I
Do.
... Group I, 10.
3 + - - - - - + -
I
Do . . . .
, , II, nil.
Total colonies per cc. on agar at 37° C.—130.
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 I, nil.
tubes of 10 cc.
. . .
. . .
. . .
. . .
1
1
9 + - - - - - + - I
Do . . . .
, , II, nil.
. 3 ,, 5 cc.
. . .
. . .
. . .
. . . 1
2
1 0 + - - - - - + - I
Do.
...
, , III, 10.
3
,,
1 cc.
. . .
. . .
. . .
. . .
1
2
3 ,,.1cc..
. . .
. . .
. . .
. . .
. . .
3
3
, ,
0 1 c c . .
. . .
. . .
. . .
. . . ...
3
Fœcal bacilli in 10 cc. and upwards.
No vibrios in 100 cc.
REPORT.
The service reservoir has slightly deteriorated the number of excremental organisms having increased,
vefold. since the previous analysis.
The distributary system has improved considerably both bacterially and chemically.
45 (b)
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 ...
33.000
33.000
Temporary hardness ...
...
...
...
Do.
...
18.000
18.500
Permanent hardness ...
...
...
...
Do.
...
2.000
1.500
Total hardness
...
...
...
Do.
...
20.000
20.000
Chlorine
... ...
...
...
. . .
Do.
...
3.905
3.905
Ammoniacal nitrogen ...
...
...
Do.
. . .
Trace.
Trace.
Albuminoid nitrogen ...
...
. . .
Do.
. . .
Trace.
Trace.
Oxygen absorbed ( Tidy's Process) ...
...
Do.
. . .
0.019
0.010
Nitric nitrogen
... ... ...
Do.
...
0.150
0.175
QUALITATIVE.
Nitrites
...
...
...
...
...
. .
Nil .
Nil.
Sulphates
...
...
...
...
... ...
...
..
Present.
Present.
Phosphates ...
..
...
...
...
...
...
...
Nil .
Nil.
Iron, poisonous metals
...
...
...
...
...
...
...
Nil, nil.
Nil, nil .