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; +
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