The remaining 25-30% will be treated surface water. In urban areas groundwater reserves are preferred for a number of reasons. Groundwater usually better fulfils the quality requirements set on drinking water than surface water, which means e.g.
The remaining 25-30%will be treated surface water. In urban areas groundwaterreserves are preferred for a number of reasons. Groundwaterusually better fulfils the quality requirements seton drinking water than surface water, which means e.g.