1(b)
SAMPLE V.—E. TAP NEAR SAIDAPET TOLL-GATE.
N u m b e r .
L a c t o s e . S a c c h a r o s e . Du 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 .
Mo t i l i t y .
Gr o u p .
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37° C.—6,140.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
... ... ... ...
1
...
1 + - - - - - + - I B. Veiculosus
... Group I, 10.
2 tubes of 10 cc.
. . .
. . .
. . .
. . .
2
. . . 2 + - - - - - + - I
Do.
3 „ 5 cc.
. . .
. . . ...
. . . 2
1
3 + - - - - - + - I
Do.
. . . ,, II, nil.
3 „ 1 cc.
...
. . . ...
...
1
2
4 + - - - - - + - I
Do.
. . . ,, III, nil.
3 „ .1 cc.
...
... ... ... ...
3
5 + - - - - - + - I
Do.
. . .
,,
IV, nil.
3 „
. 0 1 c c .
. . . ...
. . .
. . . . . .
3 6 + - - - - - + - I
Do.
7 + - - - - - + - I
D o .
. . . Class I, nil.
Fœcal bacilli in 5 cc. and upwards.
8 + - - - - - + - I
Do.
9 + - - - - - + - I
Do.
...
,,
II, nil.
No vibrios in 100 cc.
10 + - - - - - + - I
Do.
. . . „ III, 10.
REPORT.
Bacteriologically all the samples give almost the same results as on the previous quarter, samples from
the Red Hills giving excellent results as no excremental organisms could be found in 60 cubic cent. Sholavaram
Channel water is, however, much worse than that of Red Hills. Both the samples from the distributary
system are not unlike that of Sholavaram Channel with regard to their bacterial flora.
Chemically all the samples have deteriorated since last quarter : both the Sholavaram Channel water
and the Red Hills show high figures for albuminoid nitrogen and oxygen absorption. The Saidapet
Toll-gate sample has a considerable amount of sediment and has distinctly deteriorated.
Chemical Analyses.
SAMPLE III.
SAMPLE I.
Physical appearances.
Colour and
Transparency .
Yellowish and
hazy.
Yellowish and
opaque.
Smell.
None.
None.
QUANTITATIVE.
28.000
25.400
Total solids ... ...
... ...
... ...
... Parts per 100,000 ...
Temporary hardness
. . .
. . . ...
...
...
Do.
...
2.500
5.500
Permanent hardness ... ...
... ...
. . .
...
Do.
...
1.000
1.000
Total hardness
... ...
...
...
. . . ...
Do.
...
3.500
6.500
Chlorine ...
. . .
. . .
. . .
. . . . . .
. . .
Do.
. . .
6.745
4.260
Ammoniacal nitrogen
... ... ...
...
...
Do.
...
0.003
0.003
Albuminoid nitrogen
... ...
... ...
...
Do.
. . .
0.036
0.046
Oxygen absorbed ( Tidy's Process) ...
...
. . . ...
Do.
...
0.226
0.226
Nitric nitroge
... ... ...
...
...
...
Do.
. . .
0.050
Nil.
QUALITATIVE.
Nitrites
...
...
... ... ...
...
... ...
... ... ...
Nil.
Nil.
Sulphates ...
...
. . .
...
. . .
...
...
...
...
... ...
Present.
Present.
Phosphates ...
. . .
. . .
. . . ...
. . .
. . .
. . .
. . .
. . .
. . .
Nil.
Nil.
Iron, poisonous metals ... ... ... ...
... ... ... ... ...
Nil, nil.
Nil, nil.
SAMPLE V.
Physical appearances.
Col our and
Transparency.
Brownish and opaque.
Smell.
None.
QUANTITATIVE.
*104.000
Total solids ...
...
. . . ...
. . . ...
. . .
... ... Parts per 100,000 ...
Temporary hardness
... ... ...
...
...
. . . ...
Do.
...
5.500
Permanent hardness
... ... ... ...
. . . ... ...
Do.
...
1.000
Total hardness ... ... ...
. . .
. . .
. . .
. . .
. . .
Do.
...
6.500
Chlorine
...
. . . ... ...
. . .
. . . ... ...
Do.
. . .
4 . 2 6 0
Ammoniacal nitrogen ...
. . . ...
...
. . .
...
...
Do.
...
0.010
Albuminoid nitrogen
...
...
...
...
...
...
...
Do.
. . .
0.112
Oxygen absorbed ( Tidy's Process)
. . .
...
. . . ...
...
D o .
...
0 . 5 7 4
Nitric nitrogen
... ...
...
... ...
...
...
Do.
...
0.025
QUALITATIVE.
Nil.
Nitrites ... ..
...
. . . ...
. . .
. . .
. . .
. . . . . .
. . .
. . .
. . .
Sulphates ...
... ... ... ...
...
... ... ...
...
. . . ...
. . .
Present.
Phosphates
... ... ...
...
... ...
. . . ...
...
...
. . . ...
N i l .
Iron, poisonous metals ...
... ...
. . .
. . .
. . .
. . . . . .
. . .
. . .
. . .
Nil, nil.
* Contains abundant sediment chiefly of vegetable debris and particles of rust.