41.  But peasants in Guaviare complain the spraying also kills plantain, yucca, corn and other food crops, contaminates river water and causes rashes and breathing problems.

42.  But the crew can no longer rely on the system because the water may be contaminated by antifreeze fumes from leaks months ago in the cooling system.

43.  But townspeople believe the young men have contaminated their water by bathing in a stream.

44.  Cholera, spread by food and water contaminated by human feces, causes severe diarrhea and vomiting leading to dehydration.

45.  Development, landscaping, contaminated water and septic system failures have destroyed the rest.

46.  For example, Norway complains that radiation from the Sellafield nuclear reprocessing plant in England crosses the North Sea to contaminate Norwegian waters.

47.  Human waste flushed into the rivers contaminates the water, which residents use for drinking, cooking and washing.

48.  In that case, a North Carolina producer dug deeper wells for nearby residents after land application of manure was suspected of contaminating water.

49.  It remained unclear how the water became contaminated, but officials said runoff from animals or another contaminant may have been to blame.

50.  It has no common sewage system and sometimes underground water is contaminated by cesspits and garbage dumps.