347 



While it is not within the province of this division to project 

 irrigation schemes, the intelhgent investigation of surface water 

 resources demands looking into the future in regard to waier 

 utilization. 



It is well known that leeward Kauai has sutTered from lack 

 of water at dry periods for many years, while on windward Kauai 

 the Wainiha, Lumahai, Waioli, Hanalei and Kalihiwai streams 

 have been wasting hundreds of millions of gallons per day into 

 the sea during these same periods. 



The low water discharge from the Kilauea, Anahola, Kealia, 

 Kapaa and Wailua valleys is all needed in the immediate vicinity. 



Heretofore the estimated cost of diverting these big windward 

 streams has been considered too high to justify the project, but, 

 regardless of the economic prospect for the next few years, this 

 big project is certain to develop in the next decade. Temporary 

 measures in the nature of the Kauai Electric Power Company 

 for pumping and the new $150,000 ditch from the South Wailua 

 to Koloa, which is to be started by the Lihue Plantation Com- 

 pany in the near future, will only partially relieve this shortage. 



It is estimated that these streams should be diverted at an ele- 

 vation of about 700 feet above sea level to deliver water at the 

 650 feet contour in the Wahiawa and Koloa valleys. At these 

 elevations it is impossible to obtain gage readers, and, except 

 on the Wainiha stream, which may be ascended on the power 

 line ditch trail, thxse points are at present inaccessible by trail 

 of any kind. 



Suitable sites for automatic clock register stations have been 

 located on the Wainiha, Lumahai, Hanalei and Kalihiwai streams, 

 at about the 700 feet level, and trails will be cut to these points 

 and stations will be established during November and December. 

 A station will be established on the Waioli, the smallest of the 

 five, as soon as more funds are available. From dry weather 

 measurements made at low levels it is estimated that 150 million 

 gallons per day can be diverted from these five streams, and suf- 

 ficient water be left in the streams to supply ])resent rice and 

 taro lands. 



Kauai. 



The drought was broken by a general rain which covered the 

 entire island on October 24, 25 and 26, and which, contrary to 

 usual practice, was heaviest at low levels and on the leeward side 

 of the island. Mr. Hardy spent 15 days, October 10-24, with 

 the superintendent on reconnaissance and inspection. All mauka 

 stations, including Waialeale (5080 feet) were visited, and future 

 clock register station sites located. Station sites were also 

 selected on the Olokele. Kealia, Wainiha, Waioli, Lumahai, North 

 Wailua and Kalihiwai streams. The first seven days were spent 

 on computation and compiling work in connection with the third 

 quarter gage height records. The last seven days were spent 



