OCR Text |
Show 97 normal years there Is ouffici out water flowing in the streams to irrigate ths maximum acreage of Indian land which will probably be orou^t under cultivation. During August, of seme of tho years, there 13 an apparent shortage based on tha duty of seventy acroa to the second fo ot, but this is no t the casa during noinal years, aa indicated by tho duty line based on actual requirements, as during that month ths duaaud rapidly diminishes, due "to tho ripening of tha ^rain orops. i'he theoretical daaand is also considerably greater than the actual, as on any irrigation project, the amount of land actually under cult i v at ion, after eliminating ground occupied by buildings, roads oni land lying fallow, rarely exceeds 73^i of the total Irrigable acreafge of tha project. ADEQUACY OP SUPPLY DU3E7.". DBY B3AB2:- Tho aotrai corditiens obtaining on the La ho Pork Rivsr ibr tho seasons of 1915, 1917, 1918 2nd 1919 are sho vm on hydrogrspha Ifoe. 2, 3, 4 and 5. Similar data for the Uintah and whiterooks Rivera for tho uoaaons of 1918 and 1919 are shown oa hydro graphs Bet-. 6. 7, 3 and 9. Those graphs include, in addl tlon to stream flow, a maximum demand ourve based on the area .rndor cultivation and a duty of ^sater of one second foot to seventy aoreo. and a domand curve basod on the aroa undar cultivation and |