impervious soil

A fine-grained soil, such as clay, having pores too small to permit water to pass except by slow capillary creep.

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References in periodicals archive ?

I wonder how effective the EZ Drain is if the backfill is made with native, somewhat impervious soil.

Eight sites were selected for impervious soil samples, including four road sites, and two each from residential paved squares and alleys.

Installation of impervious surface in urban areas affects microbial biomass, activity (potential C mineralisation), and functional diversity of the fine earth

of packed impervious soil to help prevent water from seeping behind the wall.

There's no impervious soil, so the water heads south, slowly waterlogging and increasing the weight of the soil packed behind the wall.

Strong, long-lasting retaining walls

Changes in soil properties (e.g., burn areas from wildfires), hydrophobic or impervious soils, removal of surface vegetation, and excess runoff from warm rainfall on significant snowpack can also be important contributors.

Flash floods: the role of science, forecasting, and communications in reducing loss of life and economic disruptions

if runoff occurs quickly because of saturated soils, impervious soils, or intense rainfall, then herbicide runoff from conservation tillage fields could be greater.

The impact of conservation tillage on pesticide runoff into surface water: a review and analysis