GROUNDWATER Water in the ground that flows in the spaces between soil particles and rocks. Groundwater supplies water for wells and springs.


Greyfields A site, such as a mall or commercial facility, which has been abandoned, leaving behind a large developed but empty area.

Grey Water System

Grey Water System Wastewater from bathtubs, shower drains, sinks, washing machines, and dishwashers. Grey water can can be recycled for irrigation, toilets, and exterior washing, and such recycling conserves water. Incorporating plumbing systems that separate grey...

Grey Water

Grey Water Water from laundry, bathing, and similar uses that can be reused for non potable activities.

Green Seal

Green Seal A certification for construction products, such as windows, paints, and adhesives, attesting that the products were manufactured and can be used with minimal impact on the environment.