The Georgia Board of Dentistry has announced the adoption of a new rule, Ga. Comp. R. & Regs. r. 150-8-.05, establishing clear standards for dental unit water quality in the state. This makes Georgia only the second state in the nation to enact such a comprehensive regulation, further solidifying its commitment to patient safety and public health. 

The new rule, titled "Dental Unit Water Quality," requires all licensed dentists to ensure that water used for nonsurgical procedures meets the U.S. Environmental Protection Agency (EPA) regulatory standard of 500 or fewer colony-forming units (CFUs) per milliliter. 

"The health and safety of Georgia residents is our highest priority," said Board President Dr. David Reznik. “This new rule provides a clear and enforceable standard, ensuring that dental patients can be confident in the quality of care they receive. We are proud to be a leader in this critical area of infection control."

 The key provisions of the new rule, effective July 20, 2025, include: 

  • Quarterly Testing: Dental unit water lines must be tested at least quarterly. Practices can choose to test water lines individually or use a pooled sample method for up to ten lines.
  • Prompt Remedial Action: In the event of an unacceptable level of CFUs, licensed dentists are required to take immediate remedial action to reduce the bacterial count to a safe level.
  • Documentation: Dentists must maintain a log of all water delivery system testing and maintenance, including dates, the names of the individuals who performed the tests, and independent testing reports. This documentation must be kept for a minimum of five years.
  • New Plumbing/Repairs: Water systems must be tested within 30 days of any repair or changes to the plumbing. 

The new rule aligns with the Board's mission to protect the public and uphold the highest standards of dental practice in Georgia. It builds upon existing infection control guidelines by establishing mandatory testing and documentation requirements, ensuring accountability and consistency across the state.

 For more information and to view the full text of the rule, please visit the Georgia Board of Dentistry's website at GA R&R - GAC - Rule 150-8-.05. Dental Unit Water Quality.