Typical Injection Wells

The drawings below represent typical injection well construction. Note that Class I, II , and III wells inject deep into the ground, far below underground sources of drinking water.

Classes I, II, III, IV

Class I Wells

Class I Injection Wells - Isolate hazardous, industrial and municipal wastes through deep injection.
Visit the Class I Wells page to read more about these wells.

Class II Wells

Class II Wells - Inject oil and gas production related wastes.
Visit the Class II Wells page to read more about these wells.

Class III Wells

Class III Wells - Minimize environmental impacts from solution mining operations.
Visit the Class III Wells page to read more about these wells.

Class IV Wells

Class IV Wells - Prevent ground water contamination by prohibiting the shallow injection of hazardous waste except as part of authorized cleanup activities.
Visit the Class IV Wells page to read more about these wells.

Class V

Class V Wells

Class V Wells - Manage the shallow injection of all other fluids to prevent contamination of drinking water resources.
Visit the Class V Wells page to read more about these wells.

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