Table 36. Average daily flow and mean annual 7-day low flow at U.S. Geo- 

 logical Survey stations in coastal Alabama (modified from Reed and MaCain 

 1971, 1972 and O'Nei'l and Mettee 1982). 



a M i 1 1 ion of gallons per day (mgd) 



SURFACE WATER QUALITY 



Surface-water quality is highly dependent on several factors. These 

 include the chemical qualities of precipitation in an area, the soil and 

 rocks which the precipitation comes in contact with, and the length of time 

 the precipitation is in contact with the soil. Other factors affecting 

 surface-water quality are point- and nonpoint-source municipal and 



143 



