Table III.
Results of the Bacteriological Examination of the Tytam Water Supply for the year 1916.
Rate Total Colo- Date. nies on Agar in 1 cc Filtra- MacConkey's Lactose Neutral Red Bile Presence of the Coli Group. of Sample. 24 hours. tion. Salt Peptone Water. 37°. To cc. 1 cc. 2 cc. 5 cc. 10 cc. 20 cc. 50 cc. Unfiltered, 3-1-16. 40 Filtered, 3-1-16. 592 Unfiltered, 5-1-16. Filtered, 5-1-16. 564 Unfiltered, 7-1-16. 10 65 55 Filtered, 7-1-16. 413 20 Unfiltered, 3-4-16. 30 Filtered, 3-4-16. 600 9 A Unfiltered, 5-4-16. 20 Filtered, 5-4-16. 537 á Unfiltered, 7-4-16. 15 Filtered, 7-4-16. 600 5 Unfiltered, 3-7-16. 25 Filtered, 3-7-16. 744 15 Unfiltered, 5-7-16. 20 Filtered, 5-7-16. 726 10 Unfiltered, 7-7-16. 50 Filtered, 7-7-16. 728 7 Unfiltered, 2-10-16. 40 Filtered, 2-10-16. 760 15 Unfiltered, 4-10-16. 25 Filtered, 4-10-16. 720 5 Unfiltered, 6-10-16. 80 Filtered, 6-10-16. 699 10 ++ | [ +++ 1 + 1+ +1+ + + 1 + 1 + + + + | + + | + + +1+1++ ++++++ 1 +++ + 1 + 1 + ++++++ | + + 1 + 1 + }+ +++++ 1 + 1 + 1 + + 1 + 1 +│ +++++ 1 + 1 + + + + 1 +++ Group IV in 2 cc. Group IV in 50 cc. Group I ince. Groups I & IV in 50 cc. Group III in 1 cc. Groups I & III in 10 cc. Group I in 7 cc. Group IV in I cc. Groups I & IV in 1 cc. Group I in 2 cc. Group IV in 5 ec. Group I in 20 cc. Group III in 2 cc. Group I in 20 cc. Group III in 5 cc. 2 ΤΟ Group III in 20 ce. Group III in To ce. Groups I & II in 50 cc. Group II in ce. Group IV in 1 ec, 10 Group IV ini ce. Group IV in 5 ce + Group IV in 1 cc. + Groups II & IV in 5 cc.The rate of filtration is given by the Water Authority in gallons per square yard per day. Classification of the Coli Group is that of MacConkey,
Acid only; -No change. Acid and Gas; +
M 75
Table III.
Results of the Bacteriological Examination of the Tytam Water Supply for the year 1916.
Rate Total Colo-i
of
Sample.
Date.
nies on Agar in 1 cc
24 hours.
Filtra-t 37°. for
tion.
MacConkey's Lactose Neutral Red Bile
Salt Peptone Water.
Presence of the Coli Group.
To cc.
1 cc.
2 cc.
5 cc.
10 cc. 20 cc. 50 cc.
Unfiltered, Filtered,
3-1-16.
40
3-1-16. 592
Unfiltered,
5-1-16.
Filtered,
5-1-16. 564
Unfiltered,
7-1-16.
ཾ
10
65
55
Filtered,
7-1-16.
413
20
Unfiltered,
3-4-16.
30
Filtered,
3-4-16. 600
9
A
Unfiltered,
5-4-16,
20
Filtered,
5-4-16.
537
á
Unfiltered,
7-4-16.
15
Filtered,
7-4-16.
600
5
Unfiltered,
3-7-16.
25
Filtered, ...
3-7-16.
744
15
Unfiltered,
5-7-16.
20
Filtered,
5-7-16.
726
10
Unfiltered,
7-7-16.
50
Filtered,
7-7-16. 728
7
Unfiltered,
2-10-16.
40
Filtered,
2-10-16.
760
15
Unfiltered,
4-10-16.
25
Filtered, ...
4-10-16.
720
5
Unfiltered,
6-10-16.
80
6-10-16.
699
10
Filtered,
++ |
[ +++ 1 + 1+1+
1 + 1 + + + | +
+1+1++
++++++ 1 +++
+ 1 + 1 + ++++++ | + | + | + | ++++++
+ 1 + 1 +} +++++ 1 + 1 + 1 + 1 + +++++
+ 1 + 1 +│+++++ 1 + 1 + + + + 1
+++
Group IV in 2 cc. Group IV in 50 cc. Group I ince.
Groups I & IV in 50 cc. Group III in 1 cc.
Groups I & III in 10 cc. Group I in 7 cc. Group IV in I cc.
Groups I & IV in 1 cc. Group I in 2 cc.
Group IV in 5 ec.
Group I in 20 cc.
Group III in 2 cc.
Group I in 20 cc.
Group III in 5 cc.
2 ΤΟ
Group III in 20 ce. Group III in To ce. Groups I & II in 50 cc. Group II in ce. Group IV in 1 ec,
10
Group IV ini ce.
Group IV in 5 ce
+
Group IV in 1 cc.
+
Groups II & IV in 5 cc.
The rate of filtration is given by the
All samples taken either immediately before or immediately after filtration.
Water Authority in gallons per square yard per day. Classification of the Coli Group is that of MacConkey,
Acid only; -No change.
Acid and Gas;
-
M 75
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