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DIVISION OF HYDROGRAPHY 



Honolulu, August 7, 1915. 

 Board of Commissioners of Agriculture and Forestry. 



Gentlemen : — The following report of operations of the Di- 

 vision of Hydrography during the month of July, 1915, is sub- 

 mitted : 



RAINFALL. 



The rainfall for July was nearly normal. No heavy storms 

 occurred, but all islands were fairly well supplied with rain in 

 the nature of moderate showers. Streams show discharges above 

 the average for this time of year, and the Nuuanu reservoirs are 

 well filled. 



LEGAL WORK. 



A large part of July was spent in computing and furnishing 

 to the Attorney General's office, estimates and data in relation to 

 the Waiakoloa (Waimea, Hawaii) water case. These estimates 

 and data will be used as testimony for the Territory at a later 

 date. 



HONOLULU W^ATER SUPPLY. 



Several days were spent on the collection and preparation of 

 data relative to the future water supply of Honolulu. 



PREPARATION OF ANNUAL AND BIENNIAL REPORTS. 



A report of operations covering the biennial period ending 

 June 30. 1915, which will include all data collected during this 

 period, is being prepared. This report will be published by the 

 U. S. Geological Survey at Washington, D. C., and it is expected 

 that about one year will elapse before the report is available. 

 Blueprints of all data to be contained therein, for any especial 

 location, may be received by applying for the same at this oFlice. 



REPORTS. 



Katiai. 



Mr. Hardy sj:)cnt about half, and Mr. Horner about one-third, 

 of the month collecting and preparing data for the 1915 ])iennial 

 re])ort. In the field, 34 streams and 17 rain-gaging stations were 

 visited, and 14 stream measurements were made at regular sta- 

 tions. 



Oaliu. 



Only routine operation and maintenance worl< was done. 

 Tliirty-six stream and three rain-gaging stations were visited. 



