Answer :
The hydraulic head in the piezometer is 177.12 m. Hydraulic head is defined as the height of the water above a given point of measurement. The hydraulic head is obtained by subtracting the height of the pressure transducer from the elevation of the water table.
Hydraulic Head, denoted as h, is given by the formula:
[tex]h = z + p/γ[/tex]where h = hydraulic head, z = height of pressure transducer above datum, p = pressure, and γ = unit weight of water.
When a non-vented logger records a pressure of 64.41 kPa while suspended in a piezometer at a depth of 16.85 m below TOC and a nearby barometric logger records 100.2 kPa,
we can determine the hydraulic head in the piezometer by using the formula above.
The unit weight of water (γ) is 1001.7 kg/m³.
[tex]h = z + p/γ= 193.97 - 16.85 + (100.2 - 64.41)/(1001.7)[/tex]= [tex]177.12 m.[/tex]
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