For Operators - Underground Injection Control

​​​​​​​​​​​​​​​​​​​​Owners and operators of UIC wells and facilities in California are required to abide by certain laws and regulations to obtain a permit to operate injection wells. On April 1, 2019, new mandates took effect.

The Department of Conservation's Geologic Energy Management Division (CalGEM) hosted an informational workshop regarding implementation of the new regulations. This UIC Workshop Presentation highlights those requirements and enhancements of prior regulations. 

UIC Program Requirements

*Any injection project requires a review and concurrence from the California Water Boards. CalGEM signed an updated MOA​ ​(PDF) with the water boards on how UIC projects are documented and processed. Injection projects under review​ (PDF).

**Compliance with the California Environmental Quality Act (CEQA) must be documented if your proposed project requires a discretionary permit or approval from CalGEM.

The UIC Project Well List template for document upload to the WellSTAR Application for Injection Approval form mirrors the internal CalGEM well EDD. Operator use, and submittal of the template will accelerate CalGEM’s review process. A User Guide to populate the template is also available on the WellSTAR Training Page.

Ongoing Requirements

UIC Project Application Status

Project Review Status from California Water Boards ​(PDF)


Aquifer Exemptions Status

Related Information