Whats an injection well?
Injection wells are defined broadly to include: boreholes, sumps, drywells, cesspools, septic systems, and storm water drains, drainfields, and other subsurface drainage and disposal devices used to put fluids into the ground. These range from deep, highly technical wells to shallow on-site septic systems. There are five categories or “classes” of injection wells based on function, construction, and operating features. Q: What are Class V wells? A: Any injection wells which do not fit into Classes I through IV are, by default, Class V injection wells. As explained in EPA’s 1987 Report to Congress, there are dozens of different types of Class V injection wells. These wells are usually shallow and simply constructed devices (such as septic systems and drywells). The potential for Class V injection wells to pollute ground water varies widely, depending on things like the amount and kinds of fluid going into the well, the construction of the system, kinds of soil and other underground mate