Fluoride in Aurora’s drinking water: What you need to know
Aurora Water does not add fluoride to the drinking water. However, trace levels of naturally occurring fluoride are present in our mountain source water. These levels are consistently well below the limits set by the U.S. Environmental Protection Agency (EPA) and are monitored regularly to ensure water safety and quality.

We understand that some residents may have questions about fluoride, especially due to increased public attention. Our commitment is to transparent communication and public health, and we encourage anyone with concerns to review our most recent Water Quality Report, which includes fluoride levels for each water source.

Aurora Water works closely with public health agencies and regulatory bodies to ensure that our water meets or exceeds all health-based standards—without compromising on safety, trust, or scientific integrity.

Key facts about fluoride in our water

• Naturally occurring: The fluoride in Aurora’s drinking water comes from natural mineral erosion in our mountain water supplies. Aurora Water does not add fluoride to the water.
  
  
• 2024 fluoride levels:
  Average concentration: 0.72 mg/L
  Range: 0.45 mg/L to 1.1 mg/L
  
  
• EPA standards:
  Maximum Contaminant Level (MCL): 4 mg/L (the highest level allowed in drinking water).
  Secondary Maximum Contaminant Level (SMCL): 2 mg/L (where public notification would be required).
  
  
• CDC Recommendation: The CDC recommends a fluoride concentration of 0.7 mg/L to support healthy teeth.

Looking Ahead
Science continues to evolve, and fluoride guidelines may change in the future. However, Aurora Water has no plans to remove the naturally occurring fluoride from our water at this time.