Six composites with four levels of bulk density and porosity, formed of river sand, silt-clayey soil and peat substrate, were examined for water permeability. The tests were aimed to determine their usefulness for constructing the carrying layer of football fields. The water permeability (permeability coefficients) and selected physical properties of the composites were investigated using standard methods. The average values of permeability coefficients at the largest proportion of sand in the composites ranged from 1.4 to 17.2 mm ∙ min^-1, and at the medium and smallest share of sand, it was of 1.5–8.8 to 2.9–13.9 mm ∙ min^-1, respectively, depending on bulk density and organic matter content. Considering water permeability, the composites met the requirements of the DIN 18 035 standard for natural deposits used for constructing a football field’s carrying layer.

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