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Percolation and evaporation losses

Percolation and evaporation losses

Percolation and evaporation losses


Dear ALL,

We in Chhattisgarh are in the process of designing Sewerage Master Plan by proposing to trap the DWF flowing in nullahs through a weir and diverting it the proposed STP d/s through intercepting sewer which is also proposed to be laid along the river.

The point is ---since all the existing nullahs are unlined , is it correct to presume PERCOLATION LOSSES as 20 % with only 2 % evaporation losses.
Terrain consists mainly of quartz mica schist & quartzite with granite gnesis intruded by granite & dolerite.



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RE: Percolation and evaporation losses

you need to conduct percolation tests to determine percolation rates. evaporation is time dependent and is a function of surface area, wind, humidity, air and water temperature. you will need to estimate loss rates on your parameters

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