250 

 DIVISION QF HYDROGRAPHY 



Honolulu, Hawaii. July 11, 1914. 



Board of Commissioners of Agriculture and Forestry. 



Gentlemen : — The following report of operations of the division 

 of hydrography during June, 1914, is submitted : 



OAHU. 



\\'hile leeward Oahu has had a comparatively dry month, the 

 Koolau range has received more than its usual amount of rain- 

 fall, with the result that reservoirs along the leeward side of the 

 range are well filled. 



In addition to routine field work, the construction work in con- 

 nection with the cooperative stream-gaging stations was well ad- 

 vanced. One clock register stream-gaging station on the lower 

 south fork of the Kaukonahua and one relock register ditch-gag- 

 ing station for the U. S. Army were completed, and two of the 

 three clock register stream-gaging cooperative stations for the 

 Kahuku Plantation Company on the main and middle branches 

 of the Malaekahana stream were finished. It is expected that the 

 remaining three cooperative stations for the Kahuku Plantation 

 Co. and the Laie Plantation Co. will be completed during July. 



KAUAI. 



June was an unusually wet month, and the island generally 

 received an abnormal amoimt of rainfall. On June 22 heavy 

 rainfall was general all over the island, and the Wainiha river 

 was reported by Mr. Menefoglio as the highest he had ever 

 seen it. 



A minimum amount of routine gaining work was done on ac- 

 count of the heavy construction work being accomi^lished. The 

 W'aioli stream (government water) clock register measurement 

 station at an elevation of 7.^0 feet above sea level was completed. 

 This station necessitated the construction of a three-mile trail, 

 which required the labor of four laborers and one forem.'ui for a 

 period of 22 days. 



Duritig July a clock register stream-measurement station will 

 be constructed on the Wainiha river above the ixnver line ditch 

 intake, at an elevation of about 750 feet above the sea level. No 

 trail work will be required for this station. 



June 3 to 5 : The superintendent made reconnaissance inves- 

 tigations of the Waioli and North W'ailua valleys, and definite 

 locations were selected for station sites. 



