NationalLibraryOfScotland/medical-history-of-british-india huggingface dataset:
283
Sample V.—Dodabetta—Upper Reservoir.
Colony No.
S a c c h e r o s e .
D u l c i t . A d o n i t . I n u l i n .
V o g e s o r
P r o s k .
Indol.
M o b i l i t y .
G r o u p .
Bacilli.
Group and
Remarks.
(a ) Total colonies on agar at 37°—560.
(b) Bile salt lactose, medium.
+
—
1 tube 20 cc. of water taken .. . .
1
2 tubes 10 cc. "
..
2
4 „ 5 cc. ,,
..
4
5 „ 1 cc. "
..
5
5 „ .1 cc. ,,
..
5
5 ,, .01 cc. ”
..
5
(c ) Fœcal bacilli not present in 50 cc.
(d ) Sporogenes milk test — in 20 cc.
Sample VI.—Dodabetta.—Upper Pipe Line.
1 + + — — — + + III B. Neapolitanus. Group, I, 1.
(a ) Total colonies on agar at 37°—270.
2 + +
— — —
+ + III
Do.
„ II, nil.
(b ) Bile salt lactose, medium.
3 + — — — + + + IV B. Cloacæ.
„ III, 8.
+
—
4 + + — — + + — III
..
" IV, 1.
5 + + — — — + + III B. Neapolitanus.
1 tube 20 cc. of water taken ..
1 ..
6 + + — — + + + III
..
2 tubes 10 cc. "
1
1
7 —
—
—
—
— + +
I B. Grunthal.
4 „ 5 cc. "
2
2
8 + + — — — + — III B. Neapolitanus.
5 „ 1 cc. "
.. ..
5
9
+ +
— —
— + +
I I I
Do.
5 „ .1 cc. "
.. 5
10 + + — — — + + III
Do.
5 " .01 cc. "
..
5
(c) Fœcal bacilli in 5 cc. and upwards.
(d) Sporogenes milk test — in 20 cc.
S a m p l e V I I . — D o d a b e t t a L o w e r R e s e r v o i r .
1 — —
— —
— + + I
B. Grunthal.
Group I, 8.
2 — — — — — +
+ I
Do.
„ II, nil .
(a) Total colonies on agar at 37°—6,300
3
— — — — —
+ + I
Do.
" III, nil.
(b) Bile salt lactose, medium.
4
— — — — —
+ + I
Do.
„ IV, 2.
+
—
5
—
—
+
—
— + + I
B. Acidi lacteci.
6 +
— — —
+ + + IV B. Cloacæ.
1 tube 20 cc. of water taken
1 ..
7 + —
—
— + + + IV
Do.
2 tubes 10 cc.
,,
2 .._
8
— — — — —
+ + I
B. Grunthal.
1 „ 5 cc. ,,
.. i 4 ..
9
— — — — — — —
I
Do
5 " 1 cc. "
5 ..
10
— —
— — —
—
— I
Do.
5 „ .1 cc. ,,
2
3
5 „ .01 cc. "
-
.. 5
(c ) Fœcal bacilli in 1 cc. and upwards.
(d) Sporogenes milk test — in 20 cc.
Sample VIII.—Kodappamund Reservoir.
1 +
— — —
+ + +
IV B. Cloacæ.
Group I. 6.
2 +
— — —
+ + + IV
Do.
„ II, nil.
(a ) Total colonies on agar at 37°—740.
3
—
— +
— —
+
—
I B. Acidi lactici.
„ III, nil.
(b) Bile salt lactose, medium.
4
— —
+ —
—
+ — I
Do.
" IV, 4.
+ —
5 —
—
+
— —
+
—
I
Do
1 tube 20 cc. of water taken ..
1
..
6 — — + —
—
+
—
I
Do.
2 tubes 10 cc. "
2
7 —
—
+ —
—
+
—
I
Do
4 " 5 c c . "
4 ..
8 + — +
—
— + — IV
5 " 1 cc. "
5
9
—
— + — — + — I B. Acidi lactici.
5 " .1 cc. "
5 . .
10 + — — — — +
—
IV B. Coscoroba.*
5 " .01 cc. "
5 ..
( c) Fœcal bacilli in .01 cc. and upwards.
(d) Sporogenes milk test — in 20 cc.
284
Sample ILOld Ootacamund Cistern
(a) Total colonies on agar at 37°-560.
( b) Bile salt lactose, medium.
+ -
1 tube 20 cc. of water taken
.. 1 ..
2 tubes 10 cc.
. .
1
1
4 ,, 5 cc.
. .
. .
4
5 , , 1 c c .
. .
1 4
5 „
1 cc ..
..
..
5
5 „ . 01 cc.
(e) Fœcal bacilli in 10 cc. and upwards.
(d) Sporogenes milk test — in 20 cc.
—
C o l o n y
N o .
saccherose. Dulcit.
a d o n i t .
Inulin. Voges or pr os k.
I n d o l .
M o b i l i t y .
G r o u p .
Bacillus.
G r o u p a n d
R e m a r k s
-
—
+
+
+
+
+
+
+
+
+
1
2 3
4
5
6
7
8
9
10
—
+
—
+
+
+
+
—
— +
—
—
—
—
—
—
— + — — —
—
—
— —
—
— + + + —
—
—
—
—
— —
—
— + —
—
— — — — — — —
—
—
+ —
—
+
+
+
+ + + —
I
IV
I
IV
IV
IV
III
I
I
IV
B. Grunthal.
B. Coscoroba.
B. Grunthal.
B. Coscoroba.
Do.
Do.
B. Pneumonia or
rhinoscleromatis.
B. Acidi lactici.
Do.
B. Coscoroba.
Group I
II,
ID, ,
I V
I
REPORT.
Marlimund Reservoir.—Fœcal bacilli are present in 1 cc. The organisms present are not objectionable.
Chemically the water is inferior to the other lakes.
2.
Marlimund pipe line.— The water is ver y much improved. by the action of the pipes; apparently these are
free from silt. The water contains fœcal bacilli only in 50 cc.
3. Tiger Hill Reservoir.—
water is extremely pure. No fœcal bacilli are present in 50 cc.
Chemically the water is good, but there is apparently a fair amount of vegetable matter in this water.
4. Tiger Hill pipe line.—This water is also very pure. Faecal bacilli are present in 50 cc.
5. Dodabetta Upper Reservoir—The water is very pure. No fœcal bacilli are present in 50 cc.
Chemically the water is of a fair quality.
odabetta pipe line.—Fœcal bacilli are present in 5 cc.
7. Dodabetta Lower Reservoir.—Fœcal baeilli are present in I cc. The organisms show that the water has
thoroughly well settled and sunned.
Chemically the water is fair.
8.
Kodapamund Reservoir.—The water contains fœcal bacilli in 01 cc. The organisms cannot be looked upon
altogether satisfactory. The cause for this probably is that the spring is running very low.
Chemically the water is of a fair quality.
9. Old Ootacamund cistern.--Fœcal bacilli are present in 10 cc. The organisms present are not altogether free
objection.
Chemically the water is a very good one.
No. III.
Tiger sample
No. I.
Marlimu nd.
CHEMICAL ANALYSI
appearances.
Colour and
Transparency.
Colorless and clear.
None.
__
Smell.
Quantitative.
• •
solids
• •
.. Parts per 100,000.
.
pray hardness
. .
do.
anent hardness
..
• •
Do.
do.
Total hardness ..
• •
• •
d o.
do.
• •
chlorine
..
..
Do. do.
ammonia „
..
..
Do.
do.
absorbed ( Tidy's Process ) ..
Do.
do.
Nitrates Nitrogen (as N2 05) • • Do. do.
2.800
nil.
0.750
0.750
0.426
0.003
.
0.018
0.117
Nil.
Qualitative
Ni trates .. .. .. .. ..
sul phat es .. .. .. .. ..
p h o s p h a t e s . . . . . . . . I r o n , p o i s o n o u s me t a l s . . . . . . . .
Nil.
Present.
Nil.
N i l .
al
earances.
Colour and
Transparency.
Colorless and clear.
Smell.
None.
-
Quantitative.
solids
..
..
.. Parts per 100,000.
Temporary hardness • • • . Do. do.
nent hardness
Do.
do .
hardness ..
. .
• •
Do.
do.
chlorine
Do.
do.
. .
. •
• •
ammonia ..
..
• •
Do.
do.
Abuminoid ammonia . . • • Do. do.
oxygen
absorbed ( Tidy's Process ) • •
Do.
do.
es (as N 2,0 5 )
• •
• •
Do.
do.
3.000
Nil.
0.750
0.750
0.284
0.003
0.017
0.109 N i l
.
Qualitative.
Nitrates
..
..
..
..
..
sulphates
..
..
..
..
..
phosphates ..
..
..
..
..
Iron,poisonous metals ..
..
..
..
Nil.
Present.
Nil.
Nil.
Sample No. VIII.
K o d a p p a m
286
Sam p le No. IX.
CHEMICAL ANALYSIS.
o I d Ootacam
Physical
appearances.
Colour and
Transparency.
Colourless and clear.
None.
Smell.
Quantitative.
Total solids
..
. . Parts per 100,00
. •
Temporary hardness
..
Do.
do.
Permanent hardness
..
Do.
do.
•
Total hardness ..
..
Do.
do,
Chlorine
• .
..
Do.
do.
..
Free ammonia
Do.
do
.
Albuminoid ammonia. .
Do.
do.
Oxygen absorbed ( Tidy's Process) ..
Do.
do.
Nitrates (as N 2 0 5 )
• .
• •
Do.
do.
3.600
0.500
2.000
2 . 5 0 0
0.852
0.003
0.003
0.013
Trace
Qualitative.
. .
• .
• •
Nitrites
• •
..
Sulphates ..
..
..
• 3
• •
Phosphates
. .
. .
.
. .
Iron, poisonous metals
..
..
. .
Nil.
Trace.
Nil.
Nil.
Physical
appearances.
Colour and
Transparency.
_
Slightly yellowish but clear.
Smell.
1
None.
Quantitative.
Total solids
..
..
.. Parts per 100,000
Temporary hardness
• • .
• •
Do.
do.
Permanent hardness
..
..
Do.
do.
Total hardness ..
,
. Do.
do.
Chlorine
• .
• .
Do.
do.
Free ammonia ..
• • .
Do.
do.
Albuminoid ammonia
..
..
Do.
do.
Oxygen absorbed (Tidy's Process) • .
Do,
do.
Nitrates (as N 2 05)
1
• .
Do.
do.
2.200
Nil.
0.750
0.750
0.568
0.005
i
0 006
0.032
Nil.
qualitative.
Nitrites..
..
• •
1 •
• •
Sulphates ..
..
• •
• .
• •
Phosphates
..
• •
..
..
Iron, poisonous metals
• •
• •
..
Nil.
Nil.
Nil.
Nil.
le No, VII
Dodabetta, Lower
CHEMICAL ANALYSIS.
No. V.
287
Dodabetta, upper.
physical
appearanees.
Colour and
Transparency.
Yellowish and hazy.
Smell.
None.
•
Quantitative.
Total solids .. • • - . Parts per 100,000.
Temporary hardness .. .. Do. do.
Permanent hardness
..
Do.
do.
Total hardness .. • • .. Do. do.
chlorine • . • • .. Do. do.
ammonia ..
..
..
Do.
do.
Abuminoid ammonia
..
• •
Do.
do.
oxygen
absorbed (Tidy's Process) ..
Do.
do,
Nitrates (as N2.O5) • • Do. do.
2,600
Nil.
0.760
.
0.750
.
0.426
0.005
0.024
0.066
Nil.
Qualitative.
Nitrates • • - • • • • •
sul phat es .. • • • • • •
phosphates
•
..
• 2
• e
Iron
, poisonous metals
• •
..
..
.
Nil.
Nil.
N i l .
Nil.
canoes.
Colour and
Transparency.
Yellowish and hazy.
Smell.
None.
Quantitative.
Total solids . • . .. Parts per 100,000
Temporary hardness .. .. Do. do.
Permanent hardness • • • • Do. do.
Total hardness
..
..
..
Do.
do
• •
• •
••
Do.
do.
ammonia
.
• •
Do.
do.
Abuminoid ammonia • • 6 • Do. do.
absorbed (Tidy's Process) ..
Do.
do.
(as N 2 0 5 )
..
Do.
do,
2.600
Nil.
0.750
0
. 7
5 0
0 . 4 2 6
0.008
0.006
0.040
Nil.
Qualitative.
Nitrates .. .. .. .. .
sulphates
.. .. .. .. ..
phosphat e . . . . . . . . . .
Iron,poisonous metal .. .. ..
Nil.
Nil.
Nil.
N i l .
2 8 9
Ν u m b e r V e l
.I./08.
V E L L O R E .
Samples taken—14th July 1908.
R e m a r k s .
— W a t e r i s t a k e n f r o m a t a n k o r r e s e r v o i r . I t i s f i l t e r e d a n d d i s t r i b u t e d t o t h e t o w n .
Sample I.—Reservoir.
Colony No.
Saccherose. D u l c i t . A d o n i t . I n u l i n .
V o g e s a n d
Prosk. M o b i l i t y .
G r o u p .
Bacillus.
Group and
Remark
(a) Total colonies on agar at 37°—640.
(b) Bile salt glucose, medium.
1 + — —
—
+
— IV B. Cloacæ.*
Group I
+
—
2 + + — — + — III
" I I
3 + + +
—
+
—
III
" I I I
1 tube 20 cc. ot water taken
..
1 . .
4 +
—
— — + + IV B. Cloacæ.
" I V
2 tubes 10 cc. " . .
2 . .
5 + — — — + + IV
Do.
4 " 5 cc. " . .
4 ..
6 + + — — — — III B. Neapolitanus.
5 „ 1 cc. "..
..
5 ..
7 + + — — + — III
8 + — — — + + IV B. Cloacæ.
5 " .1 cc. "
..
5 ..
9 + + — — — — III B. Neapolitanus.
5 „ .01 cc. " .. -
..
5
10 + — — — + — IV B. Cloacæ.*
(c) Fœcal bacilli in .1 cc. and upwards.
( d) Sporogenes milk test +
in 20 cc.
Sample II.—From the first tap after filtration.
1 — — — _ — — I B. Grunthal.*
Group I
(a) Total colonies on agar at 37°—1,260.
2 —
—
— — — — I
" II
(b ) Bile salt glucose, medium.
3 + — — — + — IV B. Cloacæ.*
" III
4 + — — — + — IV
Do.
„ IV
+ —
5 + — — — + — IV
Do.
1 tube 20 cc. of water taken ..
1 ..
6 + — — — + + IV B. Cloacæ.
2 tubes 10 cc. "..
2 . .
7 + — — — + — IV
Do. *
4 „ 5 cc. "..
4 . .
8 +
—
— — + — IV
Do. *
5 „ 1 cc. "
4
1
9 +
—
— — + — IV
Do. *
5 „ .1 cc. ,,
1 4
10 + — +
—
+ —
I V B. Lactis aerogenes or
capsulatus.
5 „ .01 cc. ,,
..
. .
5
( c ) Fœcal bacilli in 1 cc. and upwards.
( d) Sporogenes milk test —
in 20 cc.
Sample III.—From a tap in the Easternmost corner—
(Saidapet).
1 + — + — — — IV
Group I
( a) Total colonies on agar at 37°—1,400.
2 + — + — + — IV B. Lactis aerogenes or
capsulatus.
,, II
( b) Bile salt glucose, medium.
3 — — + — — —
I B Acidi lactici.
„ III
+
—
4
— — — — — —
I B. Grunthal. *
„ IV
5
— — — — — —
I
1 tube 20 cc. of water taken
.. 1 ..
2 tubes 10 cc. "..
2 ..
4 „ 5 cc. ". . 4 ..
5 " 1 cc. ,,
..
5 ..
5 " .1 cc. " . .
4
1
5 „ .01 cc. ".
..
5
(c) Fœcal bacilli .1 cc. and upwards.
( d) Sporogenes milk test —
in 20 cc.
Sample IV.—From tap in west Corner of Town
1 + + — — + — III
Group I
(a) Total colonies on agar at 37°—980.
2 + + — — + — III
" II
( b) Bile salt glucose, medium.
3
— — — — — —
I B. Grunthal.*
" III
4 + — —
—
+ — IV B. Cloacæ *
" I V
+
—
5 + + — — + — III
6 + + — — + — III
1 tube 20 cc. of water taken
1 . .
7 + — — — + — IV B. Cloacæ *
2 tubes 10 cc. ,,
. . 2 ..
8 + —
— —
+ — IV
Do.
4 „ 5 cc. "
.
4 ..
9 + — — — + — IV
Do.
5 „ 1 cc. "
. .
2
3
10 + — —
— —
— IV
5 ,, .1 cc. ,,
.. ..
5
5 „ .01 cc. ,,
.. ..
5
(c ) Fœcal bacilli in 5 cc. and upwards.
( d ) Sporogenes milk test +
in 20 cc.
291
REPORT.
(i) The reservoir water is considerably contaminated ; it contains fæcal bacilli in 1/10 of a cc.; this is obviously
t o p o l l u t i o n o f t h e c a t c h m e n t a r e a—
v i d e
i n s p e c t i o n r e p o r t r e c o r d e d i n G . O . , N o . 8 5 6 M . , d a t e d 2 2 n d M a y 1 9 0 8 .
(ii) The filter beds do not remove bacilli from the water but actually increase the number present. The bacilli
$ $ a r e
a d d e d i n t h i s
w a y
a r e f o r t u n a t e l y n o t o f a n o b j e c t i o n a b l e n a t u r e , b u t t h e n u m b e r o f f æ c a l b a c i l l i i s p r e c i s e l y t h e s a m e
a r e a n d a f t e r f i l t r a t i o n s o t h a t t h e w a t e r i s n o t i m p r o v e d b y t h e p r o c e s s .T
h i s m a y
b e d u e t o t h e f a c t t h e s a n d i s n o t $ $
before it is put in the beds or it may he too coarse. This will be investigated.
(iii) The water from the distributary supply is not altered in the pipes.
293
Veil. II
Number
0 8 .
V E L L O R E .
Samples taken—30th September 1908.
Remarks. —About 15 inches of rain have fallen within the last few weeks, so that the lake
which was very low last quarter is now full.
The supply is intermittent.
294
Bacteriological analysis.
Sample I.—From Tank or Reservoir—Unfiltered
water.
Colony No.
S a c c h e r o s e . D u l c i t . A d o n i t . I n u l i n . Voges and
Prosk.
M o b i l i t y .
G r o u p .
Baccillus.
Group and
Remarks.
(a) Total colonies on agar at 37°—350.
(b) Bile salt lactose, medium.
1 +
— — — — —
IV B. Coscoroba.
Group I
+
—
2
— — — — — —
I B. Grunthal.
" II
3 + — — — — — IV B. Coscoroba.
,, III
1 tube 20 cc. of water taken
.. 1 ..
4 +
—
— — — — IV
Do
" IV
2 tubes 10 cc. ,,
..
2 ..
5 + — — — +
—
IV B. Cloacæ.*
4 „ 5 cc. ,,
..
1
3
6 +
— — — — —
IV B. Coscoroba.
7 — —
— —
+
—
I
5 „ 1 c c . „
. .
..
5
8 + — — —
— —
IV B. Coscoroba.
5 ,, .1 cc. " . ..
5
9
— — — — — —
I B. Grunthal.
5 „ .01 cc. ,,
..
3
10
—
— — — +
—
I
(c) Fœcal bacilli in 10 cc. and upwards.
( d) Sporogenes milk test —
in 20 cc.
Sample II.—First Tap after filtration.
1 + — + —
_
— IV
Group I
(a) Total colonies on agar at 37°—1,260.
2 + — — — + — IV B. Cloacæ.*
" II
(b) Bile salt lactose, medium.
3 + — + — —
—
IV
,, III
4 + — + — + — IV B. Lactis aerogenes or
Capsulatus.
„ IV
+
—
5
—
—
—
— — — I B. Grunthal.
1 tube 20 cc. of water taken ..
1
..
6 +
—
+ _ + _ IV B. Lactis aerogenes or
Capsulatus.
2 tubes 10 cc. "..
2
..
7
+
—
+ — — — IV
8 +
—
+ — + — IV B. Lactis aerogenes or
Capsulatus.
4 ,, 5 cc. "
. . ..
4
9
+
—
+ — — — IV
5 " 1 cc. ,,
.. ..
5
10 +
—
+ — _ — IV
5 " .1 cc.
,,
..
5
11 + — + — —
—
IV
5 „ .01 cc. "
. . ..
5
12 + — +
— —
—
I V
(c) Fœcal bacilli in 10 cc. and upwards.
( d) Sporogenes milk test —
in 20 cc.
Sample III.—A. Tap at Saidapet—the Easternmost
Corner.
1
— — — — — —
I B. Grunthal.*
Group I
2
— — — — — —
I
D o . *
„ II
(a) Total colonies on agar at 37°—490.
3 +
— — — — —
IV B. Coscoroba.
" III
(b ) Bile salt lactose, medium.
4
—
— —
—
— —
I B. G runthal.*
„ IV
+
—
5
— — — — — —
I
Do.*
6 + — —
—
+ — IV B. Cloacæ.*
1 tube 20 cc. of water taken ..
1 ..
7 — —
— — — —
I B. Grunthal.*
2 tubes 10 cc. "..
2 ..
8 +
—
+
— —
- IV
4 „ 5 cc. „
2
2
9 + —
—
— —
—
I V B. Coscoroba
5 " 1 cc. ".. ..
5
10 +
— —
— + + IV B. Cloacæ.
5 „ .1 cc. ,,
.
..
5
11
— — — — — —
I B. Grunthal.*
5 „ .01 cc. „
. . ..
5
12 + — — — + + IV B. Cloacæ.
(c) Fœcal bacilli in 5 cc. and upwards.
( d) Sporogenes milk test +
in 20 cc.
Sample IV.—A Tap near the Vellore Cantonment.
Railway Station Compound—Westernmost corner,
1
+
— — — — —
IV B. Coscoroba.
Group I
2 + — — —
—
— IV
Do.
„ II
( a) Total colonies on agar at 37°—190.
3 +
— — — — —
IV
Do.
,, III
( b) Bile salt lactose, medium.
4 + — — —
— —
IV
Do
,, IV
+ —
5 + — — — — — IV
Do.
6 +
—
—
— —
— IV
Do.
1 tube 20 cc. of water taken ..
1
. .
7 +
— —
—
— —
IV
Do
2 tubes 10 cc. " . .
2 ..
8
—
— — —
—
—
I B. Grunthal.*
4 " 5 cc. "
2
2
9 — — _ _ _ _
I
D o . *
5 „ 1 cc. "
. . ..
5
10 + — — — — — IV B. Coscoroba.
5 " .1 cc. ,,
. . ..
5
5 „ .01 cc. „
.
..
5
(c) Fœcal bacilli in 5 cc. and upwards.
(d ) Sporogenes milk test —
in 20 cc.
CHEMICAL ANALYSIS.
295
Sample I,
[Vellore
ore.
Colour and
Yellowish.
Transparency.
Opaque.
._
appearances.
Smell.
Nil.
Quantitative.
al solids
• •
• •
.. Parts per 100,000.
22.600
porary hardness
..
..
Do.
do.
5.750
permanent hardness
. •
• •
Do.
do.
2.000
al hardness ..
..
• •
Do.
do. I
7.750
Rine
• • • • • • Do. do. 0.532 .
ammonia
• • • • .. Do. do, 0.012
ammonia
..
Do.
do.
0.026
.
absorbed (Tidy's Process) . . Do. do. 0.101
nitrogen ..
..
• •
Do.
do.
0.135
Qualitative
writers
• •
..
• •
• •
Nil.
phates
..
• •
• •
• •
•
Present.
phosphates
• •
• •
• •
• .
• •
Nil.
poisonous metals
• •
• •
..
• •
Nit.
Sample III.
Colour and
White.
pysical
Transparency.
Clear.
appearances
Smell.
Nil. Nil
Quantitative.
Total solids . . • • • • Parts per 100,000. 15.400
Temporary hardness
..
..
Do.
do. 6.750
Permanent hardness
••
Do.
d o.
1.75
0l
Total hardness . . . . D o . d o 8 . 5 0 0
a Hlorine •• ••
Do.
do.
0.532
ammoni
. .
• •
Do.
do.
0.005 .
um
a ammonia
..
Do.
do.
0.009
Xygen absorbed (Tidy's Process)
..
Do.
do.
0.033
nitrogen.
Do.
do.
0.135
4 •
•
• •
Qualitative.
trites
- -
- -
- -
- -
- -
Nil.
Phates
- - - - - - - - - -
Present.
Ph o s p h a t e s
- - - - - - - - - - Ni l .
poisonous metals •
• - - - - - - - - -
N i l .
296
REPORT.
The water has in all samples very much improved in quality due to the recent rain filling the lake.
The lake-water now contains fœoal bacilli in 10cc. which is fairly good judged by Indian standards.
The samples after filtration show as last quarter a very large increase in the number of harmless bacilli and<illigible/>
the same number of fœc al bacilli after as before filtration.
Samples from the pipe line show a slight multiplication of fœ cal bacilli in the pipes; this may be due to si l t <i l l i gi bl e/>
pipes; fœc al bacilli are present in 5cc. of pipe water.
The chemical analysis shows that the water is fairly soft and, after filtration, is a fairly good wholesome water;
filters though they do not remove bacilli remove silt and with it suspended vegetable and animalm a t t e r , s o t h a t t h e
shows an improvement. Properly designed filters should remove bacilli as well as silt.
R e c o m
mendations—
(i) Send a sample of surface sand of the filter beds for the inspection of Sanitary Commissioner.
(ii) Open the wash-out valves on the pipe line when water is plentiful to remove any accumnlation of silt t
h a t < i l l e g i b l e / >
be th ere.
297
No.Vell. I.
/
09.
VELLORE.
Samples taken—l0th January 1909.
Remarks:—There has been 13.1 inches of rain since last report, of which 4 .6 inches fell recently about
1st January 1909.
298
BACTERIOLOGICAL ANALYSIS.
Sample I.—From Tank or Reservoir—Unfiltered
water.
Colony
No.
S a c c h e r o s e .
D u l c i t . Adonit. I n u l i n .
Voges and
Prosk.
Indol.
M o b i l i t y .
G r o u p .
Bacillus.
G r o u p a n d
R e m a r k s .
(a) Total colonies on agar at 37—2,520.
(b) Bile salt lactose, medium.
1 — — + — + — —
I
Group I
2
— —
+ - +
— —
I
" II
+ —
3
— —
+
—
+
— —
I
" III
4 — — + — + — — I
" IV
1 tube 20 cc. of water taken
..
1 ..
5 — — + — + —
—
I
2 tubes 10 cc. "..
2 ..
6 — — + — + — — I
4 " 5 cc. "..
4 ..
7
— —
+
—
+
— —
I
5 „ 1 cc. "
..
5
8
— —
+
—
+
— —
I
5 „ .1 cc. ".. ..
5
9 - - +
—
+
—
— I
5 „ .01 cc. "..
..
5
10 — — + — + — + I
(c) Fœcal bacilli in 5 cc. and upwards.
(d) Sporogenes milk test — in 20 cc.
Sample II.—First Tap after filtration.
1
—
—
+
— + — — I
Group I
2
— —
+ — + —
—
I
" II
(a) Total colonies on agar at 37°—150.
3 — — + — + —
—
I
" I I I
(b) Bile salt lactose, medium.
4
—
— + — + —
—
I
" I V
+ —
5 — — + — + —
—
I
6 — — + — + —
—
I
1 tube 20 cc. of water taken
1
. .
7
—
— + — + —
—
I
2 tubes 10 cc. "
.
1
1
8
— —
+ — + —
—
I
4 " 5 cc."..
1
8
9
— —
+ — + _ +
I
5 „ 1 cc."..
. .
5
10 — — + — + — —
I
5 „ .1 cc. "..
. .
5
5 " .01 cc. " ..
. .
5
(c) Fœcal bacilli in 20 cc. and upwards.
( d) Sporogenes milk test—in 20 cc.
Sample III.—A tap at Saidapet, the Easternmost
corner.
1 — + + — +
—
— II
Group I
2 — + + — + —
—
II
" II
(a) Total colonies on agar at 37°—740.
3 + — +
—
+ — — IV B. Lactis ærogenes or
c a p s u l a t u s
" III
( b ) Bile salt lactose, medium.
4 + — + — + —
—
IV
Do.
" IV
+ —
5 + — + — + —
—
IV
Do.
6 + — + — + — — IV
Do.
1 tube 20 cc. of water taken .. 1 ..
7 + + + — + — — III
2 tubes 10 cc."..
2 ..
8 + + + — + — — III
4 „ 5 cc. "..
4 ..
9 + + + — + — — III
5 „ 1 cc. ".. 5 . .
10 + + + — + — — III
5 „ .1 cc. "
.. ..
5
5 „ .01 cc. "
. .
5
(c) Fœcal bacilli in 1 cc. and upwards
(d) Sporogenes milk test—in 20 cc.
Sample IV.—A tap near the Vellore Canton-
ment—Railway Station compound—
Westermost corner.
1 +
—
+ — + —
+
IV B Lactis ærogenes or
c a p s u l a t u s .
Group I
2 +
—
+ — + —
—
IV
Do.
" II
3 +
—
+ — + — — IV
Do.
" III
(a) Total colonies on agar at 37°—170 in 1 cc.
4 + — + — + — — IV
Do.
" IV
( b) Bile salt lactose, medium.
+ —
5 + — + — + — — IV
Do.
6 + — + — + — — IV
D o .
1 tube 20 cc. of water taken
..
1 ..
7 + — + — + —
—
IV
Do.
2 tubes 10 cc. "..
..
2
8 + — +
—
+ — — IV
Do.
4 „ 5 cc. ".. 1
3
9 + — + — + — — IV
Do
5 „ 1 cc. "
.. ..
5
10 + — + — + — —
I V
Do
5 " .1 cc. ".. ..
5
5 „ .01 cc. "
. .
. .
5
( a) Fœcal bacilli in 20 cc. and upwards.
(b) Sporogenes milk test—in 20 cc.
CHEMICAL ANALYSIS.
299
sampleNo.1 No. 1.
Vellor.e
No. 3.
Vellore.
appearances.
Colour and.
Transparency.
Slightly yellowish and hazy.
Smell.
None.
Quantitative.
solids . . . . . . Parts per 100,000
Temporary hardness . . . . Do. do.
Permanent hardness . . .. Do. do.
Hardness ..
. . . . Do. do,
.
. . .
. .
D o .
d o .
Amonia ... . . . . Do. do
Abuminoid ammonia .. , . Do. do.
absorbed ( Tidy's Process)
Do.
do.
(as N 2 0 5)
. .
..
Do.
do.
23.200
10 000
I.500
11.500
1.065
0.009
0.018
0.052
.
Trace.
Qualitative. .
Nitrates ..
..
..
...
..
sulphates ..
..
..
..
..
phosphates ..
..
..
..
..
Iron,poisonous metals
..
..
..
Nil.
resent.
Nil.
Nil.
0
Appearances.
Colour and
Transparency.
Slightly yellowish but clear.
Smell.
None.
Quantitative.
solids
. . .. .. Parts per 100,000
Temporary hardness . . . . Do. do.
permanent hardness . . . . Do. do.
Total hardness .. .. . . Do. do.
.
. . .
D o .
d o .
ammonia
D o.
do.
.. . .
,
.
.
Abuminoid ammonia . . . . Do. do.
oxygen
absorbed (Tidy's Process) ..
Do.
do.
Nitrates
(as N 2 0 5 )
Do.
do.
..
.
.
21.400
1 0 . 5 0 0
1.500
12.000
1.065
0.003
0.000
0 . 0 4 7
Trace.
Qualitative.
N i t r a t e s . . . . . . . . . . .
s u l p h a t e s . . . . . . . . . .
p h o s p h a t e s . . . . . . . . . .
I r o n , p o i s o n o u s m e t a l s . . . . . .
Nil.
Present.
N11.
Nil.
REPORT.
300
The sample of water from the lake is fairly satisfactory considering that heavy rains fell within ten days of
being taken. Faecal bacilli are present in 5 cc.
2. The sample taken immediately after filtration shows that the total number of bacilli have fallen marked,
the fœcal bacilli have not been reduced very much. Fœcal bacilli are present in 20 cc. The sand in the filter
(I find on inspection) extremely coarse and unsuitable for the filtration of the water.
3. Of the samples taken from the pipe line that in the Easternmost corner, at Saidapet, shows increase in
bacilli, whilst that taken from the hydrant near the railway station shows a distinct falling off in the number of
tion able bacilli.
As compared with the last quarter the water is very much the same.
Chemically the filtered water is of a fair quality only. There has been a falling off in the hardness of the
since last quarter.
Reoommendation.—That enquiries be made locally as to whether fine sand is obtainable in the neighbourhood
if such is obtainable, the coarse sand at present in the filters be removed and replaced by a more suitable material,
The main running to Saidapet should be inspected for leaks.
301
Viz. I
Number
08.
VJZAGAPATAM.
Samples. taken-6th July 1908.
Remarks.—W ater comes from a large lake made by throwing a bund across a valley. The
catchment area is mostly steep hill sides but the flat land. is cultivated and is badly
conserved.
The water is filtered.
The water gravitates into the town a distance of some 8 miles. The supply is
continuous Practically no rain has fallen for five months and the lake is very low.
303
Viz.
II
Number 08.
VIZAGAPATAM.
Samples taken—8th October 1908.
Remarks .—Since last samples were taken there have been about 15 inches of rain; the water
level in the like has risen from 7 feet to 16 and on the above date stood at 15 feet.
The town supply is constant.
The sand in the filter beds has not yet been changed.