A—4

Waterworks. —The new water-supply for Apia from the Fuluasou River has been completed and the necessary consumer connections made. The 9-in.-diameter main was laid in trenches for a distance of 17,020 ft. This water-supply scheme gives a pressure of about 1501b. per square inch. The Aleisa water-supply has also been completed. Work of replacing the present 4 in. main with a 6 in. main on the Vailma water-supply has. been commenced. Three 5,000-gallon concrete tanks have been erected in Savai'i, two at Tuasivi and one at Salelavalu. Electrical Bra%ch.> —Necessary maintenance has been carried out on the small 80 kW. hydro-electric plant installed in the Vaisigano River. All machinery has been repainted and switch gear inspected, new cover screen doors, and a new valve stem for the pipe-line have been installed, while the pipe-line itself has been scraped and, one coat of asphaltum paint applied. New strain insulators were fitted to the 2,200 v. overhead transmission line which is in good order. All distribution transformers on the transmission lines were taken down for inspection, cleaned, and refilled with new oil. A new 40 kVA. threephase transformer was installed at the Public Works Department, replacing a 25 kVA. transformer. The 70 kW. Diesel-driven plant has been giving satisfactory service. This plant takes part of the load from 6.30 p.m. to 10.30 p.m. each night. Further electric power is required to cope with the increasing demand as not only has it been necessary to abandon the street lighting on account of shortage of power, but action has also had to be taken to restrict the sale of electrical appliances. With a view to obtaining expert advice on the means of increasing the power-supply, Mr. H. Vickerman, of Vickerman and Lancaster, Consulting Engineers, visited the Territory from the 11th to 24th October. Mr. Vickerman considered that by the removal of the present intake in the Vaisigano River some distance up-stream to the forks, and by establishing the power-house farther downstream near the Malifa Pool, 740 kW. could be generated. As this work would, however, unduly interfere with the present supply, he investigated the Fuluasou River as an alternative, and recommended that a 270 kW. plant, which was available in New Zealand, should be installed in this river, leaving the further development of the Vaisigano until a future date. It is proposed to implement Mr. Vickerman's recommendation.

XXI. CLIMATOLOGICAL DATA FOR APIA

Averages Total rainfall .. .. •• 111-63 in. (55 years). Mean daily maximum temperature .. 84-75° p. (44years). Mean daily minimum temperature .. 73-82° p. (44 years).

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— 1945. 1946. Total rainfall 127-46 in. 121-98 in. Number of rain days 228 198 Maximum daily fall 4-30 in. 6-02 in. Date 15th March. 18th May Extreme maximum temperature 89-6°F. 90-0°f. Date 6th April 12 April Extreme minimum temperature 68-0°]?. 66-5°f. Date 16th August 19th July Mean daily maximum temperature 85-31°f. 86-57°F. Mean daily minimum temperature 74-8°F. 74-.04 c 'f.