The color of the E horizon reflects the actual colors of the mineral particles composing the soils. The field capacity is the amount of water remaining in a soil after the soil is allowed to drain freely. Tills are poorly sorted because they are generally deposited directly out of the ice or from melting of the ice, with little or no reworking by wind and water. Give two examples of NAPLs. A non-aqueous phase liquid is one which does not mix with water to a significant extent.
Organic matter has by far the highest cation exchange capacity of common components of most soils.
An aquifer is a geologic unit, composed of rock, sediment, soil, or some combination of those that can store water and from which a useful quantity of water can be extracted. Recharge tends to occur in the spring, due to the saturation of soils to or above field capacity by melting snow and frost, and in the fall, as the reduced evapotranspiration allows infiltrated precipitation to accumulate in the soil to levels at or above field capacity. Dispersion results from the mixing of fluids due to the different flow paths, with different lengths and travel times, available in an aquifer. More depression storage is available in the woodlot because it retains the hummocky and uneven microtopogrphy typical of natural wooded area, while the soccer field has been graded to be relatively smooth, eliminating most of the small depressions that store water in natural landscapes. For our purposes, the elevation of the water table at a given location is the elevation to which groundwater would rise if it could rise freely.