TABLE 3-19 (CONT.). 



SOURCES AND EFFECTS OF NONPOINT SOURCE POLLUTANTS 



Pollutant/ 



Cause of Impairment 



Activity/Source 



Potential Receptors 



Effects 



Physical habitat alteration agricultural practices rivers, reservoirs, 



forest practices lakes 

 construction 

 mining 



land disposal 

 hydromodif ication 



• Reduces available habitat 

 for fish & Mildl ife. 



• Reduces biological 

 production. 



• Can modify hydrologicat 

 cycle. 



Petroleum products 



marinas and boats reservoirs, lakes, 

 construction, mining rivers 



Cause toxicity to 

 aquatic organisms. 



Temperature 



agricultural practices rivers, reservoirs, 

 hydromodif ication lakes 



• Elevated stream tem- 

 peratures can impair 

 aquatic life. 



its: 



De^atering 



•tridutturat practices rivers 



• Eliminates aquatic 

 habitat. 



• Causes elevated stream 

 temperatures. 



.tHl 



^.. X-jX, 



3-92b 



