31.   The Iron Mountain water was so contaminated with runoff from abandoned sulfur mines and other extractive industries that conventional chemical measures no longer worked.

32.   The Mayo Clinic says every time you drink from a bottle of water, the bacteria in your mouth contaminates the water in the bottle.

33.   The parasite is commonly found in lakes and rivers, especially if the water has been contaminated with sewage or animal wastes.

34.   The water is contaminated with waste and pesticides.

35.   The water is contaminated.

36.   There is little medicine, and the water is contaminated with waste and pesticides.

37.   Three years ago state officials found that the water was contaminated by pollutants, and issued an order to boil it before drinking.

38.   Other areas use another kind of reformulated fuel which, while in greater supply and cheaper, is thought to contaminate water.

39.   Prime Minister Bill Skate said the bodies were contaminating the water and posed a large risk of disease.

40.   Abu Zahar also said the Durian Tunggal water intake monitoring programme showed the river water was contaminated with faecal bacteria.