the world > the earth > structure of the earth > structural features > sedimentary formation > [noun] > stratum > stratum by constitution > water-bearing > surface relating to aquifer (2)
Hydrology. Of or relating to the measurement of hydrostatic pressure in an aquifer; piezometric surface n. a hypothetical surface in an aquifer…
an area of land that is the catchment area for the recharge of an aquifer.