AnnualReport-1936 — Page 719

Roservoirs.

Q 15

Capacity to permanent

overflow level. (million gallons)

Overflow periods,

Tytam.

361.79

(Overflow Cill lowered

15 days from 4th August-

10th September.

2-9" in March).

Tytam Byewash,

22.37

15 days from 5th August-

10th September.

Tytam Intermediate:

195.90

77 days from 3rd August-

18th October.

Tytam Tuk.

1,406.00

45 days from 17th August-

7th October.

Wongneichong.

30.34

8 days from 6th August-

11th September.

Pokfutum.

66.00

14 days from 3rd August-

12th September.

Aberdeen Upper.

173.23

20 days from 3rd August—

13th September.

Aberdeen Lower.

106.89

58 days from 4th August-

6th October.

2,362.52

The reservoirs contained their combined maximum storage on five days between 17th August and 10th September.

The rainfall for the year (Table XI) amounted to 69.77 inches, being 1.55 inches less than last year and 15.07 inches lower than the average for the last fifty-three years.

57.29 million gallons from the Pokfulum Reservoir were delivered to the Albany Filter Beds thereby conserving the supply from Tytam and making better distribution possible.

The total quantity of water pumped from Tytam Tuk Reservoir during the year amounted to 1,784.76 million gallons of which 1,782.61 million gallons were pumped by the Simpson Engines, and 2.15 million gallons by the Tangye Engines. This total was more than that of last year by 111.61 million gallons.

The total quantity of filtered water supplied during the year amounted to 4,513.22 million gallons (which includes 789.23 million gallons from the Mainland), and 64.33 million gallons unfiltered, making a grand total of 4,577.55 million gallons or 549.83 million gallons more than during 1935.