78 DIVISION OK WATER RESOURCES 



lake bulloiu amounted to $16,05.'], approximately $4.80 per acre and 

 fixed eharfjes, ineludiiip: repairs, broii<iht the total estimated cost up to || 

 $8.10 per acre. The piinipin<i: lift was about 170 feet. 



All farms sliown in Table HO -were located within the Corcoran Irri- 

 gation District. The assessment on lands within the district for the ^jj 

 1929 season was $2.08 an acre and the water supplied by the district f | 

 was delivered for $1.50 an acre for one irrigation, the usual application 

 being 6 acre-inches per acre. It will be noticed that four of the farms 

 listed received district water in 1929, and that onl}- one of them used 

 a substantial amount. 



Gravity Water Costs Under Mutual Water Companies in the Kaweah River 

 Delta. 



The water supply for all of the mutual water companies in the 

 KaAveah River Delta is obtained from the natural flow of the Kaweah 

 River, Avhicli is the largest stream in Tulare Count}'. This river has 

 been used for irrigation since 1854. There now are about 20 ditches 

 diverting from the river, most of them being organized and operated as 

 mutual water companies. At ]\IcKay Point, a short distance below 

 where the river emerges from the mountains, it divides into two main 

 channels known as the Kaweah River and St. Johns River. Both 

 branches further divide into a number of creeks and sloughs spreading 

 over tlie delta. The diversions by the com])anies included in this study 

 are made below ^leKay Point, from either the main branches or from 

 the creeks. 



The diversions are made in accordance with a definite schedule 

 which recognizes- the ])riority of rights. When the stage of the main 

 river above ^IcKay Point falls below 80 cubic-feet per second, the water 

 is all diverted into the Kaweah River branch and is distributed to the 

 following ditches: 



'& 



Consolidated Peoples Ditch 60 per cent 



Evans Ditch 20 per cent 



"Watson Ditch 20 per cent 



When the stage of the river acain reaches 80 cubic-feet per second, 

 or after October 1. tlie flow is divided equally between the Kaweah 

 River and the St. Johns River branches. As the flow of the river 

 increases, other ditches receive water in the following order : 



liongs Canal, Fh'nnning Diteli, Oalo's Ditch. Persian Diteli. Mathews 

 Ditch, .lennings Ditch. jModoc Ditch, Fanners Ditch, and I'phill Ditch. 



Only tlie ditches with the best rights were included in this study 

 because many of the other ditches receive practically no water during 

 years of low runoff. The water supply for all of the ditches is not 

 sutTiciciit to meet the total rer|uirements of the erojis grown. This is 

 j)art icuhirly true during the late summer and fall when the flow of the 

 river is low. Tiie last twelve years, with the exception of 1922 and 

 1!>27. liave been years of less than normal run-off. The run-off for 1924 

 was less than 25 per cent of the m(\iii annual run-off of Kaweah River. 

 The (inly year oi" normal rtm-off foi- which data are included in this 

 re|)ort is 1927. 



During the period from 192-1 to 1929, inclusive, the Consolidated 

 Peoples Ditch received water from 2:54 to ',]Gi^ days each year, or an 

 average of 283 days. The average date of the end of the run was August 



