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WATER SUPPLY AND DISTRIBUTION
DISTRIBUTION SYSTEM ELEMENTS AND ACCESSORIES

Engineering Aid 2 - Intermediate Structural engineering guide book
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Figure 2-18.—Transformer pad details for use with the site plan shown in figure 2-15. Surface water is rain that runs off the ground into areas or during a drought, the supply may be minimal streams, rivers, and lakes. It is the most common source or significantly reduced. used for a water supply. The availability of this source, Groundwater is the water that percolates through the  soil  and  builds  up  as  underground  sources.  As though,  depends  on  the  amount  of  rainfall  an  area groundwater seeps through the soil, it collects over an receives.  In  areas  where  there  is  substantial  rain,  the impervious stratum (a layer of earth, usually rock, that amount of surface water may be plentiful; but in dry the water cannot penetrate) and forms a water level 2-15







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