Injection means the injection of carbon dioxide streams into the storage site;
Injection well means a well into which fluids are injected. (See also "underground injection.")
Underground injection means the subsurface emplacement of fluids through a bored, drilled or driven well; or through a dug well, where the depth of the dug well is greater than the largest surface dimension. (See also “injection well”.)
Injection tool means a device used for controlled subsurface injection of radioactive tracer material.
Infiltration means water other than wastewater that enters a sewer system (including sewer system and foundation drains) from the ground through such means as defective pipes, pipe joints, connections, or manholes. Infiltration does not include, and is distinguished from, inflow.