(1993) restated this same range of values for residual saturation in both the vadose and saturated zones. Wilson et al. (1990) observed residual saturations in saturated unconsolidated sands to range from 0.14 to 0.30 (14% to 30%) and a lower value, 0.09 (9%), for one unsaturated (vadose zone) sand.
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goose step-a manner of marching with legs straight and swinging high. lockstep-a manner of marching in file in which each person's leg moves with and behind the corresponding leg of the person ahead; the prisoner's ankles were so chained together that they could only march in lockstep.