G

Grease Trap - Watertight structure located on a building sewer and before a
septic tank in which grease and oils are separated from sewage.

Greenbelt - Area of open space that creates a boundary for development and
preserves natural, agricultural, recreational and scenic corridors.

Greywater - Domestic wastewater from all sources except toilets, urinals, and
drains equipped with garbage disposals. Sources include washing machines,
sinks, showers, bathtubs, and dishwashers.

Groundwater - Fresh or saline water beneath the ground surface contained in
spaces between rock and soil particles and bedrock fractures.

Groundwater Elevation - Elevation at which water is observed weeping or flowing
from the walls of, or standing in, a deep observation hole.