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Water Bores
Bore water is groundwater that has been accessed by drilling a bore into underground aquifers (water storages) and pumping to the surface. Aquifers may contain chemicals and micro-organisms that are potentially harmful. Some of these chemicals are naturally occurring (such as those present in soils and rocks) while others are a result of contamination.
Confined or deep aquifers are usually deep underground which helps protect the water source. These types of aquifers are usually covered by more than 20 meters of rock or clay which act as a natural filter preventing microbial contamination. Unconfined or shallow aquifers are not protected by thick layers, because they are closer to the surface above and are susceptible to both chemical and microbiological contamination.
