EPA's Region 6 Office
Serving: Arkansas, Louisiana, New Mexico, Oklahoma, Texas, and 66 Tribal Nations
"UIC" stands for "Underground Injection Control." This is a program authorized by the Safe Drinking Water Act to protect ground water, a.k.a. underground sources of drinking water (USDWs), by regulating the disposal of waste fluids through underground injection wells.
The UIC program is authorized by the Part C of the Safe Drinking Water Act (SDWA), PL 93-523 and Amendments. The UIC program also draws authority from the Resource Conservation and Recovery Act (RCRA), PL 94-580 and Amendments, with respect to the underground disposal of hazardous wastes. Regulations are published in Title 40 of the Code of Federal Regulations, primarily in Parts 124 and 144-146.