62
SAM PLE V.—FROM NORTHERN CORNER, FROM A PILLAR FOUN -
TAIN, A FEW YARDS OFF THE MUNICIPAL HOSPITAL.
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 t i l i t y .
G r o u p .
Bacillus.
Group and
Remarks.
Total colonies per cc. on agar at 37°—3,150.
Bile salt lactose, medium.
+
-
1 + - - - - - + - I B. Vesiculosus
Gro u p
I , 2 .
1 tube 20 cc. cc. of water taken ..
.. 1
. . 2 + + - + - + -- - IV B. Lactis
ærogenes ..
" I I ,n
i l.
2 tubes 1 0 c c .
" ..
. .
2
. . 3 + + - + - + - - IV
Do.
..
" II,n i l .
3 „ 5 cc.
"
. .
. . 3
. . 4 + + - + - + - - IV
Do.
..
"
" I I I ,
n i l .
3 „ 1 cc.
"
. .
. . 3
. . 5 + + - + - + - - IV
Do.
..
"
" I V , 8 .
3 " -1 cc.
"
..
. .
3
. . 6 + + - + - + - - IV
Do.
3 " -01 cc.
"
. .
. .
. .
3 7 + - - - - - + - I B. B.Vesiculosus.
Fœcal bacilli in -1 cc. and upwards.
8 + +- + - + - - I V
B . L a c t i
s æ r o g e n e s .
. .
C l a s s
I ,
n i l .
9 + + - + -- + - -- IV
Do.
..
" I I , 8 .
No vibrios in 100 cc.
10 + + - + - + - - IV
Do.
.. "
" I I I , 2 .
REPORT.
The River Kalyani has, I understand, almost dried up and as a result the bacteriological analysis shows
marked improvement, only 10 cc. and upwards of the sample containing fœcal organisms and they are of the
most resistant Class No. III. It is, however, disappointing to find that the water taken from the Collecting
Chamber is still far from satisfactory. It contains fœcal organisms in 5 cc. and upwards and the total
count of the colonies present in 1 cc. of the sample has increased. Some attempt should be made to ascertain
the reason for this bad result. The water samples collected from the distributary system show as before that
the pipes must be in a very dirty condition. They should be attended to before the next samples are taken
for analysis.
All the above samples give the same results chemically as on the previous occasion.
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 ..
27.000
46.000
Temporary hardness
..
..
..
Do.
..
13.000
24.500
Permanent hardness
..
..
..
Do.
..
1.000
1.500
Total hardness
. .
. .
..
..
Do.
..
14.000
26.000
Chlorine
..
. . . .
. .
Do.
..
0.887
1.420
Ammoniacal nitrogen ..
..
. .
Do.
..
tran.
0.003
Albuminoid nitrogen
. .
. .
. .
Do.
..
0 003
0.004
Oxygen absorbed (Tidy's Process) ..
..
Do.
..
0.009
0.022
Nitric nitrogen
.. .. ..
Do.
..
0.025
0.100
QUALITATIVE.
..
. .
Nitrites
..
..
..
..
.. ..
..
Nil.
Nil.
..
... ,
Sulphates
. . . . . . . . . . . .
..
Present.
Present.
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 ..
4 1 . 6 0 0
Temporary hardness
..
..
..
Do.
..
22.000
Permanent hardness
.. .. ..
Do.
..
1.000
Total hardness ..
..
..
..
Do.
..
23.000
Chlorine
..
. .
. .
..
Do.
..
1 . 4 2 0
Ammoniacal nitrogen .. .. ..
Do.
..
0.002
Albuminoid nitrogen
..
. .
..
Do.
..
0.003
Oxygen absorbed (Tidy's Process) .. ..
Do.
..
0.006
Nitric nitrogen .. .. ..
Do.
..
0.075
QUALITATIVE.
Nitrites
..
.. .. .. ..
..
..
Nil.
Sulphates
..
..
..
.. .. .. ..
Present.
Phosphates
..
..
..
.. ..
..
..
Nil.
Iron, poisonous metals ..
..
.. .. .. ..
Nil, nil.