Aquifer, Glossary and Terms, Amusement, Recreation & Ticket Services
List of United States Amusement & Recreation Services, Ticket Service, Guide Service
"Aquifer" - Amusement Glossary Terms and Abbreviations
Underground bodies of water. There are two types of aquifers. Open aquifers have permeable materials overlying them, e.g. soil with underlying loose gravel. Closed aquifers are capped with an impervious layer of material, such as clay, which prevents water from penetrating from the soils directly above. The water level in aquifers rises and falls in response to water removal and infiltration.