10 20 30 40 50 60 70 

 DISTANCE IN FEET FROM EDGE OF STREAM 



Figure 6.--Water-table gradient for three water-table levels, Indian Creek, study 



area 1. 



Figure 7.--Indian Creek study area 1 showing mean 

 dissolved oxygen levels at 10 inches in the gravel 

 in contour intervals of 1 mgjl., August 1956. 

 (Arrows indicate direction of ground-water flow.) 





<5 



46 



9.0 



I 



1 



8 



?> 



5 



7.0- 



5.0- 



3.0- 



47 



48 49 50 51 



TEMPERATURE (DEGREES F.) 



— i 1 1 1 1 1 1 1 r 



46 47 48 49 50 



TEMPERATURE (DEGREES F. ) 



51 



52 



52 



Figure 8.-- Indian Creek study area 1, September 1959. 

 Upper figure shows increase in water temperature 

 and dissolved oxygen with distance away from bank 

 ground-water source at 10 inches in gravel. Lower 

 figure is temperature and dissolved oxygen data 

 from upper figure plotted to show relationship be- 

 tween water temperature and dissolved oxygen. 



14 



