4. Accidental Oil Spills: Oil leaks can happen during storage and transport of chemicals. This can be seen at most of the fuel stations. The chemicals present in the fuel deteriorates the quality of soil and make them unsuitable for cultivation. These chemicals can enter into the groundwater through soil and make the water undrinkable. - See more at: http://www.conserve-energy-future.com/causes-and-effects-of-soil-pollution.php#sthash.stRbBvMt.dpuf