| Human beings, birds, animals, fish and other under | | | | personal or political consideration. In some area, |
| water creatures need oxygen. Aerobic need clean | | | | inundation or infiltration by flood waters every year |
| water, with oxygen dissolved in it. We all are aware of | | | | provide an excellent breeding base for bacteria. Flood |
| this. The individual, community, the nation and the whole | | | | waters commonly contain high levels of bacteria. Even |
| world can help minimize water contamination. | | | | small depressions in our compound filled with flood |
| The water pollution destroys the dissolved oxygen in | | | | water provide an excellent breeding ground for ever |
| the water. The aesthetic quality of lakes and rivers is | | | | multiplying bacteria. |
| reduced. The aquatic life is threatened. Its reproductive | | | | Septic tanks dug less than 10 meters from the well |
| ability is diminished. Humans consume fish. It is a | | | | could cause pollution, especially when it is |
| nutritious food. The fish from polluted water is a health | | | | coarse-textured soil. Water-tight casings are very |
| hazard. | | | | essential for such wells. Bacteria can infiltrate with |
| Sources of bacterial contamination are human and | | | | water through the soil. Any systems with casings or |
| animal wastes. The butchers do not seem to care | | | | caps that are not water-tight are vulnerable to such |
| much about water pollution. The animal wastes are | | | | infiltration. |
| deposited just any where convenient. The authorities | | | | Another broad class of bacteria found in our vicinity is |
| do not seem to implement any waste disposal | | | | 'coliforms'. Feces from warm blooded animals or |
| proposal or project. There are exceptions and they | | | | human beings can point out pathogenic organisms that |
| are far and few. | | | | cause diseases. Coliforms include E.coli, Salmonella, |
| The distance between the septic tank and the well or | | | | Klebsiella and Erwinia. Pathogenic organisms can |
| the stream or river is not clearly defined. It should be | | | | cause intestinal infections, dysentery, hepatitis, typhoid |
| well defined and implemented, disregarding the | | | | fever and cholera. |