How does the UIC Program categorize the different types of injection?
EPA’s regulations group injection wells into five groups or “classes.” Each class includes wells with similar functions, construction, and operating features. This allows consistent technical requirements to be applied to each well class. The UIC regulations address wells used for injection only; production wells are not regulated by the UIC Program. • The Classes of Wells page provides information on the five classes of injection wells. • See drawings of Typical Injection Wells.
