150 



DIVISION OF WATER RESOURCES 



TABLE 2 



MEASUREMENTS OF SANTA ANA RIVER BETWEEN RIVERSIDE NARROWS 



AND PRADO, 1931 



Miles 







1.3 



4.9 



6.2 

 8.2 

 8.7 

 9.5 

 11.4 



11.8 

 13.3 



15.4 



15.8 

 16.6 

 19.2 



Location 



Riverside Narrows station 



Pedley Bridge -. 



Above J ditch; 1 mile above Pedley power house 



Diversion by J ditch 



Pedley power house 



Hamner Avenue station 



Below Hamner Avenue Bridge 



1 mile below Hamner Avenue Bridge 



Above Hamner Springs 



Inflow from Hamner Spring 



Diversion Durkee Ditch 



Auburndale Bridge station 



IJ^ miles below Auburndale Bridge 



Inflow from Lilliebridge pumps 



Rincon Bridge 



Inflow from Chino Creek 



Below Chino Creek --- 



Atchison, Topeka and Santa Fe Railway Bridge station 

 Prado station 



June 3 



Time 



.10 a.m. 

 .40 a.m. 

 .00 a.m. 

 .40 a.m. 

 .05 a.m. 

 .30 a.m. 

 .10 a.m. 

 .15 a.m. 

 .10 a.m. 

 .45 a.m. 



55 a.m. 



20 a.m. 

 .00 a.m. 



00 a.m. 



00 a.m. 

 .05 a.m. 

 .30 a.m. 

 .30 a.m. 



30 a.m. 



Discharge 



(sec.-ft.) 



36 

 33 

 30 



5. 

 25 

 34 

 36 

 37 

 46 



5. 



4. 

 50 

 53 

 11 

 75 



3. 

 78 

 84 

 79 



August 21 



Time 



7.15 a.m. 

 7.55 a.m. 

 8.55 a.m. 

 9.30 a.m. 

 8.20 a.m. 

 7.10 a.m. 

 8.40 a.m. 

 7.40 a.m. 

 7.40 a.m. 

 8.30 a.m. 



9.55 a.m. 

 9.20 a.m. 

 10.00 a.m. 

 8.25 a.m. 

 9.00 a.m. 

 7.40 a.m. 

 7.10 a.m. 

 7.55 a.m. 



Discharge 

 (sec.-ft.) 



27 

 27 

 25 



5.4 

 17 

 24 

 29 

 31 

 34 



3.8 



4.2 

 29 

 30 



7.5 

 46 



2.6 

 48 

 45 

 38 



water, it must pass a mass of root systems before appearing in the 

 river as surface water. A typical cross section of the river channel is 

 shown on Plate II. The quantity of water passing the points marked 

 * would represent the gain of water in the river if the losses along 

 the channel were reduced to zero. 



Effect of natural losses on inflow. 



The area along the river channel between the Hamner Avenue 

 and The Atchison, Topeka & Santa Fe Railway Bridge gaging stations 

 was selected for a more detailed study of these natural losses. Graph D 

 on Plate III represents the amount of water that drained out of the 



PLATE II 



Typical cross-section of river channel 



INFLOW 



