Glossary & Lingo

GARP stands for 'Ground water at risk of containing pathogens' and is defined as a ground water source that is at higher risk to be contaminated from any sources of human disease-causing microorganisms (pathogens); including various types of bacteria, viruses and protozoa.

A type of valve that uses a flow control element shaped like a sliding gate to block flow, often used as isolation valves.

A waterborne intestinal parasite that causes a disease called giardiasis (GEE-are-DIE-uh-sis) in infected humans. Symptoms of the disease include diarrhea, cramps, and weight loss. Giardia contamination is found in most surface waters and some ground waters.

The supply of fresh water found beneath the Earth's surface (usually in aquifers) that is often used for supplying wells and is a source of springs. Groundwater is not infinite, it is limited in supply. 

Stands for Ground Water Under the Direct Influence of surface water.