Ground Water Surface. 



259 



a cross-section showing how the water flows from the ad- 

 jacent higher lands and enters the channels of streams, the 

 beds of lakes and even the ocean itself. 



ia 91. Showing contours of ground water surface in the vicinity of 



Los Angeles River, Cal. 



325. Growth of Streams The water which maintains 

 the low stage flow of streams finds its way into channels 



all along the banks and bot- 

 toms rather than at isolated 

 places in the form of springs, 

 entering in the manner 

 stated in (324). In Fig. 91 

 is represented the ground 

 \vater surface in the valley of 

 the Los Angeles river, Cali- 

 fornia, where it is seen to 

 rise back from the stream 

 and up the valley. This 

 river must be draining the 

 adjacent higher land and it 



seepage in 25,978 feet. 



g ei 



,978 



was found by actual measurement that the growth of this 

 stream in 11 miles was 60 cubic feet of water per second; 

 the water all entering by slow general seepage, there being 



