borehole water treatment sanctity (pty) at ireland marketing

borehole water treatment sanctity (pty) at ireland marketing
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  • Why are boreholes so important?
  • Boreholes were designed and constructed to let in as much water as possible. Quantity was always perceived as the first issue, whereas water quality was a secondary issue. Poor water quality could always be corrected by treatment, just as in a river intake scheme with a water treatment works.
  • How good is borehole drinking water?
  • The quality of drinking water is necessary for good health. In this study, twenty borehole drinking water samples were collected from homes and communities and assessed for their quality. The results indicated that 95 % of the samples had pH values below the World Health Organization's (WHO) drinking water guidelines of 6.5–8.5.
  • Could an old borehole'short-circuit' a new water supply?
  • An old borehole is likely to provide a vertical conduit that forms an open link between the shallow and deep groundwater resources. The old borehole could, in effect, ‘short-circuit’ the improved design and protection in an adjacent new water supply borehole.
  • What happens if a borehole is dewatered?
  • A drawdown of the water level in the borehole below the water yielding fractures will create a drawdown in the fracture system in the rock adjacent to the borehole. If the fractures in the rock become dewatered, then no water will flow along the dry fracture into the borehole. In other words, the yield from the rock will suddenly decrease.