264 



years to run. By the time this lease terminates, (under the agree- 

 ment made between the Waiahole Water Company and the Ter- 

 ritory of Hawaii) — six million gallons per day of the Waiahole 

 water owned by the Territory, will revert to the Territory and 

 will be available for delivery to Honolulu, via the Waiahole Tun- 

 nel and the twelve-mile pipe and tunnel system already con- 

 structed from Waiawa to Honolulu. Ten years later all Waia- 

 hole water (between 8 and 10 million gallons per day), will re- 

 turn to the Territory and be available for Honolulu's water sup- 

 ply by the same system. 



In December a series of measurements were made of the seep- 

 age from No. 4 reservoir. These measurements proved conclu- 

 sively that the leakage from this reservoir is due to leakage from 

 the outlet pipe, at some point wnthin the dam structure. Indica- 

 tions point to faulty construction when the pipe was put in place. 

 The results obtained lead to the conclusion that the dam structure 

 is practically leak-proof and is absolutely safe. 



Kona, Hazcaii, Investigation and Report. The Legislature of 

 Hawaii during its 1913 session, appropriated $5,000.00 for a spe- 

 cial investigation and report of the surface water resources of 

 North and South Kona, Hawaii, to be made by this division. 



This report was completed in February, and printed copies 

 thereof were distributed to all interested parties. The investiga- 

 tion and report were completed at a cost of $3,072.51. 



The Waiahole Tunnel Water Measurements. Measurements 

 of the flow of water developed in the main Waiahole Tunnel were 

 made at both portals, at regular intervals, during the year. These 

 measurements show that the outflow from the north, or Waiahole, 

 portal, decreased from about 32 million gallons per day in January 

 to about 8 million gallons per day in December. The outflow 

 from the south, or Waiawa, portal, decreased from about 15 

 million gallons per day in July to less than four million gallons per 

 day in December. 



Legal Services. The services of technical employees of this 

 division were used to a considerable extent by the Attorney Gen- 

 eral's Department during the year — especially in the Hilo Board- 

 ing School Ditch Case tried at Hilo, and the Waikoloa Water 

 Case, at Waimea, Hawaii. 



Territorial Water Commission. The Legislature of Hawaii in 

 its 1915 session enacted a law (Act 36) — drafted by the Superin- 

 tendent of Hydrography — providing for the creation of a com- 

 mission of three members to investigate both the physical and 

 legal aspects of the waters in the Territory, both surface and un- 

 derground, and to report thereon, with recommendations, to the 

 next legislature. The members of this committee were appointed 

 in December, and consist of Messrs. G. K. Larrison, chairman ; 

 Arthur G. Smith, and T. F. Sedgwick. 



Flood Storage Investigation. Streams on the windward side of 



