Aggregate Hard rock that is graded with a value of 3 or more and washed with pressurized water over a screen to remove the fine material. A hardness value of 3 or more on the Mohs Scale of Hardness means that it will scratch a copper penny without leaving a residue.

Alluvium Soil deposits due to floodwaters.

Bedrock Rock underneath or at the earth s surface. It is composed of weathered, in-place consolidated material, larger than 0.08 (2 mm) inches in size and greater than 50 percent by volume.

Cesspool A covered excavation designed to retain organic matter and solids while receiving sewage or other organic wastes from a drainage system.. The liquids then seep into soil cavities.

Clear-water wastes Liquid having no impurities or impurities reduced below a harmful level. This liquid can come from cooling water and condensate drainage, water used for equipment chilling purposes, or cooled condensate from steam heating systems.

Code official The designated authority charged with administration and enforcement of a code. This can also include a duly authorized representative.

Colluvium Soil moved by gravity.

Color Based on the Munsell soil color charts, the color of soil when moist.

Construction documents All the documents necessary for obtaining a building permit.

Conventional soil absorption system A system in which effluent is elevated or distributed to a seepage trench or bed.

Effluent Liquid discharged from a septic or treatment tank.

Flood fringe The part of the flood plain located outside of the floodway and usually covered with standing water during regional floods.

Floodway The channel that carries and discharges flood water...