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Drainage & Product Sources

Water shows up in two forms – Surface Water and Subsurface Water.

Surface refers to water accumulating on the surface of your property either in grass, dirt or hard surface areas.

Problems arise when:

   • Excess or poorly channeled roof line run-off or naturally low lying areas result in a
     collection of non-dispersing water.
 
   • Water runs off a surface at a faster rate than normal absorption capabilities
     accommodate. For example, water on asphalt will run-off at faster rate than water
     on grass. This factor is called the Run-Off Coefficient.

Subsurface refers to water that flows into and then through the ground itself.

Problems arise when:

   • Soil is impervious (like the Texas clay level) with a low to zero hydraulic permeability,
     meaning that water passes through the soil at a very slow rate.

   • Water remains in pockets underground creating soggy and/or unwanted low lying areas.

Drainage is usually needed to appropriately guide Roof Line run-off and Landscape run-off. Specific products are used to accommodate the different needs.

Drainage Solutions should be designed to collect water, channel it to a main location and direct the flow into the sewer system or properly distributed in the ground.

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