NationalLibraryOfScotland/medical-history-of-british-india huggingface dataset:
200
SAMPLE V.—TAP IN NORTHERN CORNER, FROM A PILLAR FOUNTAIN
A FEW YARDS OFF THE MUNICIPAL HOSPITAL.
Total colonies per cc. on agar at 37º—20.
Colo
ny
numbe
r.
L
a
ct ose.
S
a c c h a r o s e . D u l c i t e .
A
don
ite
.
Inulin.
Voge s
a n d P r o s k .
Indol .
Mo t i l i t y .
Gr oup.
Name of Bacilli.
Group and
Remarks.
Bile salt lactose, medium.
+
—
1 tube of 20 cc. of water taken
..
. .
1 . .
2 tubes of 10 cc.
..
..
2
. .
1
1 +
++ I B. Grunthal
. . Group I,1.
3
5 cc...
. .
3
..
2
+++— --++ III B. 71
. . . .
,,II, nil,
1 cc.
3
3
. .
3
++— — —++ III Do.
,, 111,9,
"
„
. .
. .
• 1
2
1
4 +++-- —++ III Do.
..
..
IV, n i l ,
3
"
cc.
..
..
.01
. .
3
5 + + — — — ++ I11 1)o.
..
. .
„
3
„
cc.
"
..
. .
6 --
— — —
+ + III Do.
Fœcal bacilli in -1 cc. andu p w a r d s .
7
— — — + + III DO.
..
.. Class I, nll,
8 + +I+ — — — + + III Do.
. . . .
II 9.
9
- - -++ III Do.
..
. . III, 1.
No vibrios in 100 cc.
10 ++-+----+H+
III Do.
. . . .
REPORT.
The two wells at the Tirupati headworks show great variations in the quality of water they yield at
different times and as compared with one another. On the present occasion the water of the east well is
definitely the better and may be described as moderate.
The water of the west well is not in at all a satisfactory state. It shows one hundred fœcal germs to the
cc. and among these is one of the most susceptible species, so pollution has been both extensive and recent.
The water drawn from the infiltration gallery is so much better than that from the wells that it speaks
well for the filtering capacity of the gallery. A reduction of from three hundred to three thousand fold in the
fœcal germs is a notable one.
The samples from the distributary system are again not so good but this is not exactly a new feature in
this water-supply. Still they are not very bad and the kinds of germs present are unobjectionable in
themselves.
Chemically the water of the wells is much more uniform. The water of the east well is always the softer
and is generally better all round. The water as distributed has an average quality between the two, and
though tending to be hard must be considered good.
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
23·000
47·600
Temporary hardness
Do.
15·000
24·000
Permanent hardness
Do.
1 · 0 0 0
1·000
Total hardness
Do.
16·000
25·000
Chlorine
Do.
0·710
1·420
Ammoniacal nitrogen
Do.
Trace.
0·002
Albuminoid nitrogen
Do.
Do.
Trace.
Oxygen absorbed ( Tidy's Process)
Do.
0·012
0·012
Nitric nitrogen
Do.
0·037
0·087
QUALITATIVE.
Nitrites
Nil.
Nil.
Sulphates
Trace.
Trace.
Phosphates
Nil.
Nil.
Iron, poisonous metals
Nil, nil.
Nil, nil.
SAMPLE V.
Physical appearances.
Colour and
Transparency.
Colourless and clear.
Smell.
None.
QUANTITATIVE.
Total solids
Parts per 100,000
38·000
Temporary hardness
Do.
20·00
Permanent hardness
Do.
1·000
Total hardness
Do.
21·000
Chlorine
Do.
1·065
Ammoniacal nitrogen
Do.
Trace.
Albuminoid nitrogen
Do.
Do.
Oxygen absorbed. ( Tidy's Process )
Do.
0·012
Nitric nitrogen
Do.
0·075
QUALITATIVE.
Nitrites
Nil.
Sulphates
Trace.
Phosphates
Nil.
Iron, poisonous metaly
Nil, nil.
5
202
KURNOOL.
WATER SAMPLES TAKEN—23RD NOVEMBER 1910.
REMARKS.—The Cuddapah-Kurnool canal was in floods when samples were taken. The supply is intermittent Samples were not
taken from the Southern Settling Tank as it was under cleaning process. Water is pumped into and drawn from
the Northern Settling Tank from 17th October 1910. There has been about 15·44 inches of rain since last analys
is.
Bacteriological Analyses .
SAMPLE I.—CUDDAPAH-KURNOOL CANAL.
Col ony number. LactoseSuccharoseDul ci t eAdoniteInulinVo 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—3,000.
Bile salt lactose, medium
+
−
1 tube of 20 cc.
1
2 tubes of 10 cc.
2
1 + − − − − −
+
−
I B. Vesiculosus
Group I, 5.
3 ,, 5 cc.
3
2 + − − − − − +
−
I
Do.
„ I
nil
.
3 ,, 1 cc.
3
3
+
+ − − − −
+
+
IV B. 106
,, III nil
.
3 ,, ·1 cc.
2
1
4 + − − − − − + −
I B. Vesiculosus
,, IV, 5.
3 ,, ·01 cc.
3
5
+
+ − − − −
+
− IV B. Coscoroba.
6
+ +
− − − −
+
− IV
Do.
7 + − − − − − + −
I B. Vesiculosus
Class I, nil.
Fœcal bacilli in ·1 cc. and upwards.
8 + − − − − − + −
I
Do.
,, II, 5.
9 +
+
− − − − + − IV B. Coscoroba.
„ III, 5.
Vibrios present in 100 cc.
10 +
+
− − − −
+
−
IV
Do.
SAMPLE II.—SETTING TANK (NORTHERN).
1
+
− − − − −
+
−
I B. Vesiculosus
Group I, 8.
Total colonies per cc. on agar 37° C—140.
2 + − − − − −
+
−
I
Do.
„ II, nil.
3 + − − − − −
+
−
I
Do.
,, III, nil.
+
−
4 + − − − − −
+
−
I
Do.
„ IV, 2
Bile salt lactose, medium.
5
+ +
− − − −
+
− IV B. Coscoroba.
6
+ +
− − − − + − IV
Do.
1 tube of 20 cc.
1
7
+ +
− − − − + −
I B. Vesiculosus
Class I. nil.
2 tubes of 10 cc.
2
8
+
− − − − − + −
I
Do.
„ II, 2.
3 ,, 5 cc.
3
9
+
− − − − − +
−
I
Do.
,, III, 8.
3 „ 1 cc.
2
1
10
+
− − − − − +
−
I
Do.
3 „ ·1 cc.
3
3 „ ·01 cc.
3
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—FIRST TAP AFTER RESERVOIR.
1
+
− − − − − − −
I B. Vesiculosus
Group I, 10
2
+
− − − − − − −
I
Do.
„ I nil
.
Total colonies per cc. on agar at 37° C—110.
3
+
− − − − − − −
I
Do.
„ III
nil
.
4
+
− − − − − − −
I
Do.
,, IV, nil.
Bile salt lactose, medium.
5
+
− − − − − − −
I
Do.
+
−
6
+
− − − − − − −
I
Do.
7 + − − − − − − −
I
Do.
Class I, nil.
1 tube of 20 cc.
1
8
+ − − − − − − −
I
Do
,, II , nil.
2 tubes of 10 cc.
2
9
+ − − − − − − −
I
Do.
,, III, 10.
3 „ 5 cc.
3
10 +
− −
− −
− − −
I
Do.
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.
SAMPLE IV.—TAP IN FRONT OF COLLECTOR'S OFFICE IN
BUDARPET.
1
+ +
− −
−
+
−
II B. Schaefferi. Group I, nil.
2 + +
− − −
+
−
II
Do.
,, II, 10.
Total colontes per cc. on agar at:37° C—50.
3
+
−
+
− − −
+
−
II
Do.
„ III, nil .
+
−
4
+
−
+
− − −
+
−
II
Do.
„ IV, nil .
Bile salt lactose, medium.
5
+ +
− − −
+
−
II
Do.
1 tube of 20 cc.
1
6
+ +
− − −
+
−
II
Do.
2 tubes of 10 cc.
2
7
+
−
+
− − −
+
−
II
Do.
Class I, 10.
3 „ 5 cc.
3
8
+
−
+
− − −
+
−
II
Do.
,, II
nil.
3 „ 1 cc.
3
9
+
−
+
− − −
+
−
II
Do.
,, III, nil.
3 „ ·1 cc.
3
10
+
−
+
− − −
+
−
II
Do.
3 „ ·01 cc.
3
Fœcal bacilli in 5 cc.and upwards.
No vibrios in 100 cc.
203
SAMPLE V.—PAP IN BASTIAN ROAD TERMINUS.
Total colonies per cc. on agar at 37º c—20.
Bile salt lactose, medium.
C o l o n y N u m b e r .
L a c t o s e .
S a o c h a r o s e .
Du l o i t e A d o n i t e .
Inul i n.
V o g e s a n d P r o s k
I ndol . Mot i l i t y.
G r o u p .
Name of Bacilli.
Group and
Remarks.
+
–
of 20 cc.
..
..
..
1 tube
1
. .
1 + + + – +
+ – _ III
(p) .. .. ..
Group I, 2.
10 cc.
..
..
..
2 tubes of
1
1
3
5 ec.
..
..
..
2
1
2 + ++++ - – + – - III B. 75 ..
..
„ II, nil.
,,
3
1 co.
• •
• •
..
1
2
3 + + – - - + - - IV B. 112
..
..
,, III, 4.
,,
1cc.
..
..
.. . 1
2
4 + + - – – _
_ IV Do.
..
..
IV, 4.
3 „ •0. ce.
. .
. .
..
. .
•
•
3 5 + + - - – – - - - IV
o.
..
..
6+ + - - – - - - IV
Fœcal bacilli in 5 cc. and upwards
. No vibrios in 100 CC.
7 7 + + + - + - - III
Do.
...
Class I, Z..
8 + – – – – – – – - I
Mutahilis ..
,, III, 5.
9 + - - - – – – – I Do. ..
Undetermined,
10 + + + – – + _ – III
B. 75.
5.
REPORT .
With the Cuddapah-Kurnool canal in flood we expect to find a considerable amount of pollution present
but it is important to point out, with reference to the findings from samples IV and V that there is only a
small admixture of foecal germs and these are of the more and very resistant kinds.
Samples II and III show a marked improvement especially in the matter of total count.
Sample IV shows a still farther decrease in the number of fœcal germs hut there has been a sad change
from the most resistant kind to the most susceptible kind. The origin of this change is not easy to see. The
quantity of the pollution is so small as to almost exclude leakage from outside or an accumulation of silt in-
-side as the cause. The nature of the pollution is equally against the idea of silt. The change might be
put down to an accidental occurrence but in sample V although there are none of the susceptible class I
there is a very definite tendency to an admixture of species, all of which are unrepresented in the water at
t h e h e a d w o r k s .
Chemically the water is not so good as it has been, The canal water contains a lot of suspended organic
matter but this is mainly of vegetable origin. The organic matter in solution as shown by the albuminoid
matter in the settled water is not so satisfactory and is at least in part of animal origin.
204
Chemical Analyses.
SAMPLE I.
SAMPLE II.
Physical appearances.
Colour arid
Transperency.
B r o w n i s h a n d o p a q u e .
W h i t e a n d o p a t u e
Smell.
None.
None.
Total solids
Parts per 100,000
62·600
2 6 · 8 0 0
Temporary hardness
Do.
7·
0 0 0
6 · 0 0 0
Permanent hardness
Do.
1·000
1·000
Total hardness
Do.
8·000
7 · 0 0 0
Chlorine
Do.
2·840
2·840
Ammoniacal nitrogen
Do.
0·006
0·003
Albuminoid nitrogen
Do.
0·018
0 · 0 1 3
Oxygen absorbed (Tidy's Process)
Do.
0·197
0·086
Nitric nitrogen
Do.
0·037
0·037
Nil.
N i l .
Present.
Present.
Nil.
N i l .
Nil, nil.
Nil, nil.
SAMPLE V.
Physical appearances.
Colour and
Transparency.
White and opaque.
Smell.
Νοne.
Total solids
Parts per 100,000
22·000
Temporary hardness
Do.
6·000
Permanent hardness
Do.
1 · 0 0 0
Total hardness
Do.
7·000
Chlorine
Do.
2·840
Ammoniacal nitrogen
Do.
Trace.
Albuminoid nitrogen
Do.
0·003
Oxygen absorbed (7idy's Process) Do.
0·031
Nitric nitrogen
Do.
0·050
Nil,
P r e s e n t .
Nil
Nil. n i l
205
COCANADA.
WATER SAMPLES TAKEN—29TH NOVEMBER 1911.
REMARKS.—There was a small flow of water in the Samalkota canal when samples were taken. There has been about 19·26 inches
of rain since last analysis. The supply is intermittent.
Bacteriological Analyses .
SAMPLE I.—SAMALKOTA CANAL.
Col ony number.
Lactose.Sacchar os e. Dulcite.Adoni t e.Inul i n.Vo g e s a n d Pr o s k .Indol.Mot i l i t y. Group.
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37° C.—Cannot be counted.
Bile salt lactose, medium.
+
−
1 + − − + −
−
+ +
I B. 1
Group I, 9.
1 tube of 20 cc.
1
2 + − − + − − +
−
I
B. Ac i d i La c t i c i .
„ II nil.
2 tubes of 10 cc.
2
3 +
− −
+
− −
+
−
I
Do.
„ III, 1.
3 „ 5 cc.
3
4
+
− −
+
− − +
−
I
Do.
„ IV, nil.
3 „ 1 cc.
3
5
+
− − − − − + − I
B. Mutabilis
3 „ ·1 cc.
2
1
6
+
− − + − − + −
I B. Acidi Lactici.
Class I, nil .
3 „ ·01 cc.
1
2
7
+
− −
+
− −
+
−
I
Do.
„ II, 8.
8
+
− −
+
− −
+
−
I
Do.
„ III, 1.
Fœcal bacilli in ·1 cc. and upwards.
9
+ + +
+ −
+
+ − III B. 76
Undetermined, 1.
Vibrios present in 100 cc.
10
+
− − + −
− + −
I B. Acidi Lactici.
SAMPLE II.—SETTLING
TANK.
Total colonies per cc. on agar at 37° C—150.
1
+ +
− +
−
+
− −
IV B. Lactis ærogenes.
Group I, 1.
2 + + −
+
−
+
− −
IV
Do.
„ II, nil.
3
+ + −
+
−
+
− −
IV
Do.
„ III, nil.
4 +
+
− + − + − −
IV
Do.
„ IV, 9.
Bile salt lactose, medium.
+
−
5
+ +
−
+
−
+
− −
IV
Do.
6 +
+
− + −
+
− − IV
Do.
7
+ +
− + −
+
− −
I
Do.
Class I, nil.
1 tube of 20 cc.
1
8
+
+ −
− − − −
I V
B. Mutabilis
„ II, 9.
2 tubes of 10 cc.
2
9
+ +
−
+
−
+
− −
IV B. Lactis ærogenes
„ III, 1.
3 ,, 5 cc
1
2
1 0
+
+−
+
−
+
− −
I V
Do.
3 „ 1 cc.
3
3 „ ·1 cc.
3
3 „ ·01 cc.
3
Fœcal bacilli present in 60 cc.
Vibrios present in 100 cc.
SAMPLE III.—TAP IN HEADWATER WORKS.
Total colonies per cc. on agar at 37° C.—1,170.
1
+ +
−
+
−
+
− −
IV B. Lactis ærogeues.
Group I, nil.
2
+
+ −
+
−
+
− −
IV
Do.
„ II, nil.
3
+
+ −
+
−
+
− −
IV
Do.
„ III, nil .
4
+ +
−
+
−
+
−−
IV
Do.
„ IV, 10.
Bile salt lactose, medium.
+
−
5 + + −
+
−
+
− −
IV
Do.
6
+
+ −
+
−
+
− −
IV
Do.
7
+
+
−
+
−
+
− −
IV
Do.
1 tube of 20 cc.
1
8
+ +
−
+
−
+
− −
IV
Do.
Class I, nil.
2 tubes of 10 cc.
2
9
+
+ −
+
−
+
− −
IV
Do.
„ II, 10.
3 „ 5 cc.
2
1
10
+
+ −
+
−
+
− −
IV
Do.
„ III, nil.
3 „ 1 cc.
1
2
3 „ ·1 cc.
3
3 „ ·01 cc.
3
Fœcal bacilli in 5 cc. and upwards.
Vibrios present in 100 cc.
SAMPLE IV.—PILLAR FOUNTAIN NEAR PORT
STATION.RAILWAY STATION
1
+ +
−
+
−
+
− −
IV B. Lactis ærogenes.
Group I, nit.
Total colonies per cc. on agar at 37° C—380.
2
+ +
−
+
−
+
− −
IV
Do.
„ II, nil.
3
+ +
−
+
−
+
− −
IV
Do.
„ III, nil .
4
+ +
−
+
−
+
− −
IV
Do.
„ IV, 10.
5
+ +
−
+
−
+
− −
IV
Do.
Bile salt lactose, medium.
+
−
6
+ +
−
+
−
+
− −
IV
Do
7
+ + −
+
−
+
− −
IV
Do.
8
+ +
−
+
−
+
− −
IV
Do.
Class I, nil .
1 tube of 20 cc.
1
9
+ +
−
+
−
+
− −
IV
Do.
„ II, 10.
2 tubes of 10 cc.
2
1 0
+ +
−
+
−
+
− −
IV
Do.
„ III, nil .
3 „ 5 cc.
1
2
3 „ 1 cc.
3
3 ,, ·1 cc.
3
3 „ ·01 cc.
3
Fœcal bacilli in 10 cc. and upwards.
Vibrios present in 100 cc.
52
207
OOTACAMUND .
WATER SAMPLES TAKEN—5TH & 6TH DECEMBER 1910.
REMARKS.—All the reservoirs were full when samples were taken. The supply is constant. Rainfall since last analysis is as
follows :
—
Names of reservoirs.
Inches.
Dodabetta
..
..
..
..
..
.. 32.21
Tiger Hill
.. .. ..
..
32.21
Marlimund
..
..
..
24.60
.
Bacteriological Analyses.
SAMPLE, I.—DODABETTA UPPER RESERVOIR.
Total colonies per cc. on agar at 3-7° C.— 100.
N u m b e r L a c t o s e .
Sa c c ha r os e .
D u l o i t e . Adoni t e .
I n u l i n .
V o g a 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
N o l a c t o s e f e r m e n t e r e c o u l d b e i s o l a t e d .
No lactose fermenters could be isolated.
2 tubes of 10 cc.
..
2
3
„
5 cc
.
..
3
3
„
cc.
. .
3
3 " . 1 c c . • 1
.. 3
3 " . 0 1 c c .
.. 3
Fœcal bacilli not present in 60 cc.
No vibrios in 100 cc.
SAMPLE II.— DODABETTA LOWER RESERVOIR.
Total colonies per cc. on agar at 37° C—100.
1 + + - + -
-
- -
IV B. Gasoformans
Group 1, nil.
2 + + - + - - - -
IV
Do.
„
II, nil.
3 + + - + -+ - -
IV B. Laetis ærogenes.
III, nil.
4 + + - - - + - + IV B. Cloacæ.
„
IV, 10.
Bile salt lactose, medium.
+
-
5 + + - + - - - - IV B. Gasoformans.
6 + + - + - - - - IV
Do.
Class
I, nil.
7 + + - + - - - - IV
D o .
II, 9.
8 + + - + - - - - IV
Do.
„
III, 1.
1 tube of 20 cc.
1
. .
9 + + - + - - - - IV
D o .
2 tubes of 10 cc.
2
. . 10 + + - + - - - - IV
Do.
3
„
5 cc.
3
. .
3
„
1 cc.
3
. .
3
„
.1 cc
3
. .
3
„
.01 cc.
Fœcal bacilli in .1 cc. and upwards.
No vibrios in 100 cc.
. .
3
SAMPLE III.—DODABETTA PIPE LINE.
Total colonies per cc. on agar at 37° 0—130,
1
+ +
-
+
-
-
-
-
IV B. Gasoformans. i Group 1; nil.
2 + + -
+ - - -
- IV
Do.
,,
II, nil.
3
+ +
- + - -
-
- IV
Do.
" III, n i l .
4 + + -
+ - - -
-
I V
Do.
„
IV, 10.
Bile salt lactose, medium.
5 + + -
+ - + -
- IV B. Laetis ærogenes.
+
-
6 + + -
+ - + -
-
I V
Do.
Class
I. nil.
1 tube of 20 cc.
1
. . . . ' 7 + +
- + - + -
- IV
D o . "
11, 10.
2 tubes of 10 cc.
. .
2
8 + +
- + - +
-
- 1V
Do.
„
III, nil.
3
„
5 cc.
1
2 , 9 + + -
+ - + -
-
I V
Do.
3
„
1 cc.
.
3
10 + + -
+ - + -
- 1V
Do.
3
"
.1 cc..
. .
3
3
"
.01 cc...
Fœcal bacilli present in 25, cc. and upwards.
No vibrios in 100 cc.
. .
3
SAMPLE IV .—TIGER HILL RESERVOIR.
Total colonies par co. on agar at 37° C—440.
1
+ +
-
+ - + -
-
IV B. Laotis ærogenes. Group I, nil.
2+ +
- + - +
-
- IV
Do.
,,
II, nil.
3 + +
- + - +
-
- IV
Do.
„
III, nil.
Bile salt lactose, medium.
+
-
4 + +
- + - +
-
- IV
Do.
„
IV, 10
5 + +
- + - +
-
-
I V
Do.
6 + + - + - + -
- IV
Do.
1 tube of 20 cc..
..
1
.
7 + +
- +
- +
-
-
I V
Do.
Class
I, nil
2 tubes of 10 cc..
2
. .
8 + + -
+ - + -
-
I V
Do.
„
1I, 10
3 " 5 cc.
3
. .
9 + +
- + - +
-
+ IV B. 102
III, nil.
3 " 1 cc.
3
. .
10+ +
- + - + -
-
I V B. Lactis ærogenes.
3
„
.1 cc.
3
. .
3
„
.01 cc.
Fœcal bacilli in • 1 cc. and upwards.
No vibrios in 100 cc.
1
2
208
SAMPLI V.—TIGER HILL PIPE LINE .
Total colonies per cc. on agar at 37° C—70
N u m b e r . Laet ose
Ba o c h a r o s e
ul oi t e Adoni te
I nul i n
V o g e s a n d P r o s k .
I ndol .
Mo t i l i t y .
Group.
Name of Bacilli.
Groups and
Remarks.
Bile salt lactose, medium,
+
-
1 tube of 20 cc.
..
..
..
1
N o L a c t o s e f e r m e n t e r s c o u l d b e i s o l a t e d .
2 tubes of 10 cc.
..
.
2
3 "
5 cc.
..
..
..
3
3 "
I cc.
..
..
..
..
3
3 "
1 cc.
..
..
..
. .
3
3 "
.01 cc...
..
. .
3
Fœcal bacilli not present in 60 cc.
No vibrios in 100 cc.
SAMPLE VI.—OLD OOTY CISTERN.
Total colonies per cc. on agar at 37° C—70.
1
+
- - - - -
+
-
I B. Vesiculosus
.. Group I 10,
2 +- - - - - + - I
Do. . . 11 II, n i l .
3 + - - - - - + - I
Do. .. „ III, nil,
4 + - - - - - + - I
Do.
,, IV nil
5 + - - - - - + -
I
Do. ..
Bile halt lactose. medium.
+
— 6 + - - - - - + -
I
Do.
Class I, nil,
7 + - - - - - + -
I
Do. ..
„
Il, nil,
1 tube of 20 cc
1
8 + - - - - - + - I
Do.
" IlI, 10,
9 + - - - - - + -
I
Do .
I0 +
- - - - -
+
-
I
Do. ..
' .
. .
2 tubes of 10 cc.
:
:
..
..
2 .
3 ,,
5 cc.
3
3 „
1 cc.
..
3
3 77
. 1 cc.
..
..
..
2
3 „
.01 cc. .. ..
3
Fœcal bacilli present in 20 cc. and upwards.
No vibrios in 100 cc.
SAMPLE VII.— MARLIMUND RESERVOIR.
Total colonies per cc. on agar at 37° C—100.
1 +
- - - - - + -
I B. Vesiculosus
..
_
Group I,10.
2 + - - - - - + - I
Do.
II, nil.
3 + - - - - - + -
I
Do.. .
III, ni/,
4 + - - - - - + -
I
Do.
. .
IV, nil.
5 + - - - - - + -
I
Do.
Bile salt lactose, medium.
+
- 6 + - - - - - + - I
Do.
7 + - - - - - + -
I
Do.
.. Class I, nil,
8 + - - - - - + -
I
Do..
.
". II I nil,
1 tube of 20 cc.
..
..
..
1
9 + - - - - - + -
I
Do.
.. " III, 10.
10
+
- - - - -
+
-
I
Do
2 tubes of 10 cc.
..
..
2
3 11
5 co.
..
..
.. . .
3
3 "
1 cc.
3
3 77
.1. ec.
..
. . .. . .
. .
3
3 „
.01 cc.
..
. . .. . .
. .
3
Fœcal bacilli in 20 cc. and upwards.
No vibrios in 100 cc.
SAMPLE VIII. — MARLIMUND PIPE LINE.
Total colonies per cc. on agar at 37° C—10.
No Lactose fermenters could be isolated
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
Faecal bacilli not present in 60 cc.
No vibrios in 100 cc.
209
SAMPLE IX.—KODAPPAMUND RESERVOIR.
Total colonies per cc. on agar at 37° c—10.
N u m b e r .
Lact ose. S a c c h a r o s e . Dul ci t e. Adomi t e. Inulin. Vo g e s a n d P r o s k . Indoi. Moct i l i t y.
Group.
Name of bacilli.
Group and
Remarks
Bile salt lactose, medium.
..
–
1 tube of 20 cc.
1
No lactose fermenters could be isolated.
2 tubes of 10 cc
2
3 "
5 cc.
. .
..
..
..
..
3
3
3 "
1 cc.. .
.
3
3 "
.1 cc. .. ..
3
3 „
.01 cc. .. •• .. ..
..
Fœcal bacilli not present in 60 cc.
No vibrios in 100 cc.
REPORT.
As usual the waters from the various sources of supply show considerable differences in quality, but on
this occasion fortunately the variation is from exceedingly good to moderate. They may be grouped in
three qualities
(1) The waters from the Dodabetta Upper Reservoir, from Kodappamund Reservoir and from the
Tiger Hill and Marlimund Pipe Lines are exceedingly good and leave nothing to be desired.
(2) The waters from the Old Ooty Cistern, from Marlimund Reservoir and from the Dodabetta Pipe
Line are also very good and but by comparison with the previously mentioned four would be unexceptionable.
(3) From the last two groups to the third there is a very considerable drop in quality, The waters
from Dodabetta Lower Reservoir and from Tiger Hill Reservoir both show ten fœcal germs to the cc. In the
former the admixture of species is greater than it should be and hardly in relation to the total count which is
n o t i n c r e a s e d o v e r t h a t o f t h e U p p e r R e s e r v o i r . I n t h e T i g e r H i l l w a t e r a l l t h e f œ c a l g e r m s a r e o f o n e
fairly resistant species, but the total count is much higher than in any of the other samples. It is rather
difficult to account for these findings.
It is satisfactory to note that the water of the Marlimund Reservoir has been consistently better in 1910
than in 1909 and that this improvement is both bacteriological and chemical. The organic matter present
in this sample is still greater than in the others, but is lees objectionable in kind than it has been on previous
occasions.
In all other chemical qualities this and the other samples are excellent.
53
SAMPLE VI.
SAMPLE XI.
210
Chemical Analyses.
SAMPLE I.
SAMPLE II.
Physical appearances.
Colour
and
Transparency.
Yellowish but clear.
Slightly yellowish
but clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids
..
..
..
..
..
Parts per 100,000 ..
2.800
2.400
Temporary hardness ..
..
..
..
Do. ..
Nil.
Permanent hardness .
..
Do..
0.500
0.500
Total hardness
..
..
..
..
Do. .. 0.500
0.500
Chlorine..
..
..
..
Do.
..
0.284
0.284
A m m o n i c a l N i t r o g e n . .
Do. . .
0.003
Trace.
Albuminoid nitrogen..
..
..
. .
Do.
..
0.007
0.003
Oxygen absorbed (Tidy's Process) ..
..
Do.
0.051
0.022
Nitric nitrogen
..
..
..
..
Do. .. 0.037
0.050
QUALITATIVE.
Nitrites..
..
..
..
..
. .
..
. . . . . ..
Nil.
Nil.
Sulphates
..
..
..
. .
. . . . . . .
Nil.
Nil.
Phosphates
..
..
..
. . ..
. . .. .. ..
Nil.
Nil.
Iron, poisonous metals
..
..
..
..
..
Nil, nil.
Nil, nil.
SAMPLE IV.
SAMPLE VII.
Physical appearances.
Colour and
Transparency.
Yellowish but clear.
Yellowish and hazy.
Smell.
None.
None.
QUANTITATIVE.
Total solids ..
..
..
..
Parts per 100,000
2.800
3.200
Temporary hardness ..
..
..
..
Do.
..
Nil.
Nil.
Permanent hardness ..
..
..
..
Do.
0.500
0.500
Total hardness..
Do. . .
0.500
0.500
Chlorine..
Do. . .
0.284
0.284
Ammoniacal nitrogen..
Do.
0.002
0.003
A lbuminoid. nitrogen..
..
..
..
Do. ..
0 . 0 0 6 0.013
Oxygen absorbed (Tidy's Process) ..
..
Do. ..
0.065
0.116
Nitric nitrogen..
Do. . .
0.025
0.025
QUALITATIVE.
Nitrites
..
..
..
..
..
..
.. ..
Nil.
Nil.
Sulphates
..
..
..
..
..
..
..
..
Nil.
Nil.
Phosphates..
..
..
..
..
. . . . . . . .
.
Nil.
Nil.
Iron, poisonous metals
..
..
..
.. ..
..
. .
Nil, nil.
Nil, nil.
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
4.000
Temporary hardness..
Do. . .
Nil.
Nil.
Permanent hardness ..
..
..
..
Do. ..
0.500
1.000
Total hardness
..
..
..
Do. ..
0.500
1.000
Chlorine..
Do. . .
0.284
0.497
Ammoniacal nitrogen.. .. ..
Do. . .
Trace.
0.003
Albuminoid nitrogen. .. ..
Dp. . .
0.003
0.003
Oxygen absorbed ( Tidy's Process) ..
..
Do.
0.036
0.015
Nitrio nitrogen..
..
Do. ..
0.025
0.062
QUALITATIVE.
Nitrites. .
..
..
..
..
..
..
..
Nil.
Nil.
Sulphates
..
..
..
..
. . . ...
Nil.
Nil.
Phosphates
..
..
..
..
..
..
..
..
..
Nil.
Nil.
Iron, poisonous metals
..
..
..
... .
. .
N i l ,
n i l .
Nil, nil.