3
TABLE IV.
Tabular Statement of Chemical Analyses for period ending December 1918.
Parts per 100,000
Name of Munici-
pality, Jail or Rail-
way Station.
Colour and Trans-
parency.
Total
solids.
Hardness.
C h l o r i n e .
A m m o n i a c a l N i t r o - g e n . A l b u m i n o i d N i t r o - g e n .
O x y g e n a b s o r p t i o n .
N i t r i c N i t r o g e n .
Remarks.
T e m p o r a r y .
P e r m a n e n t .
T o t a l .
R i v e r W a t e r s .
C o n j e e v a r a m .
Colourless and clear. 26.000 9.500 2.500
1 2 . 0 0 0
2.485 Trace. Trace. 0.019 0.050 Head works filtered.
Do.
25.400 10.500 2.500 13.000 2.840 0.003 0.004 0.019 0.050 Pipes.
K u r n o o l . . .
1. White and opaque. 32.000 8.500
2 . 5 0 0
1 1 . 0 0 0 3.195 0.002 0.007 0.095 Nil. Canal.
2.
Do.
25.000 8.500 2.500 11.000 3.195 0.003 0.009 0.076
" S.S. Tank.
3.
Do.
31.600 8.500 2.500 11.000 3.550 0.003 0.010 0.095
" N. S. Tank.
4. White and hazy . . . 23.000 9.000 2 .500 11.500 3.195 Trace. 0.003 0.029
" , Filtered.
Madura . . .
Yellowish and opaque. 40.600 9.000 3.000 12.000 1.242 0.002 0.028 0.290
" Vaigai river.
Slightly yellowish but
clear.
21.000 9.000 3.000 12.000 1.597 0.003 0.004 0.070
" Filtered.
Vizianagaram Colourless and clear. 31.000 13.500 3.500 17.000 4.260 0.003 0.003 0.019
" Head works.
D o .
3 2 . 0 0 0 13.000 4.000 17.000 4.260 Trace. Trace. 0.019
" Pipes.
U p l a n d s u r f a c e .
Adōni . . .
Yellowish and opaque. 25.000 5.000 3.000 8.000 1.065 0.004 0.043 0.256 Nil. Tank.
Yellowish and hazy. 20.200 6.500 2.500 9.000 1.065 0.003 0.022 0.201
"
Filtered.
Berhampore.
Slightly yellowish but
clear.
16.000 5.000 2.000 7.000 1.420 0.006 0.012 0.084
" Raw water.
Do.
13.200 3.500 2.500 6.000 1.420 Trace. 0.007 0.063
"
Filtered.
S p r i n g .
Adōni . . .
White and hazy . . .
13.000 2.000 4.000 6.000 0 .710 Trace. 0.002 0.062 Nil. Spring.
D i n d i g u l . . .
1. Colourless and clear. 46.600 18.500 8.500 27.000 2.840 0.002 Trace. 0.020 0.150 Collecting well.
2. Do.
46.000 19 000 8.000 27.000 2.840 0.002 0.003 0.020 0.200 Filtered.
3. Slightly yellowish
but clear.
51.000 19.000 7.000 26.000 4.615 0.003 0.005 0.040 Trace. Deep well.
R a i l w a y S t a t i o n s . Guntakal Jn. Slightly yellowish but
clear.
69.600 20.000 12.500 32.500 4.615 0.002 0.004 0.031 0.450 Tap on platform.
Madura Junc-
tion.
Do.
22.000 9.000 3.000 12.000 1.597 0.003 0.004 0.080 Nil.
Do.
Vizianagaram. Colourless and clear. 29.000 13.500 4.500 18.000 3.905 0.004 0.008 0.019
"
D o .
Naupada
Jn.
Yellowish but clear. 104.000 11.500 2.500 14.000 39.050 0.003 0.020 0.190
"
Traffic well.
Colourless and clear. 115.000 17.500 22.500 40.000 39.050 0.003 0.005 0.038
"
Loco well.
J a i l s .
Cuddalore . . .
Yellowish and opaque. 25.000 2.000 4.000 6 .000
1 . 0 6 5
0 . 0 0 4 0.005 0.036 0.200 Lake well.
Do.
36.400 2.500 6.500 9.000 4.615 0.002 0.003 0.027 0.375 Jail well.
Berhampore.
Slightly yellowish but
clear.
51.400 14.000 4.000 18.000 6.035 Trace. Trace. 0.011 0.300 Pump well.
D o .
43.000 7.000 2.000 9.000 2.130 0.003 0.004 0.042 Nil. Camp.
Do.
50.600 23.000 5.000 28.000 5.325 0.003 0.002 0.021 0.375 Quarantine well.
Bellary . . .
Do.
76.000 25.000 22.500 47.500 7.810 0.004 0.003 0.030 0.300 Jail well.
Palamcottah. Colourless and clear. 31.600 11.000 5.000 16.000 1.420 Trace. 0.003 0.020 0.125 Kitchen well.
Table II shows the number and kind of examinations of water samples carried
out during each of the past five years. Tables III and IV show the quantity of
pollution, bacterial and chemical, in the routine samples analysed. Of the 470
samples which were examined bacteriologically, 116 were from the Experimental
Filters, Guindy, 160 were from mufassal water-works, wells and ærated
water factories and 194 were from the Madras City Water-supply (Special
Committee 181 and Health Officer 13).
Specimens sent for examinations.— The total number of specimens received for
examination was 4,660, one more than last year, but still short of the maximum