PFAS Regulations, Monitoring, and Testing

PFAS Regulations, Monitoring, and Testing

Loveland Reservoir Water Transfer.

Sweetwater Reservoir was tested again in July 2025, as part of the Authority’s ongoing water quality testing protocols. The testing indicates that PFOS, PFHxS and PFOA are present above notification levels. This information was presented to the Board at their meeting on August 13, 2025. The full presentation of the Q4 test results is now available. 

In July, the Authority completed additional testing needed to calculate an annual average for PFAS. Results showed PFAS levels below the state’s response level but high enough to require customer notification. These findings were shared with the Sweetwater Authority Board on Aug. 13. While not required, the Authority will continue conducting regular monitoring and testing, which will help guide development of a long-term treatment solution. As soon as information is available, we will share those results with customers. 

All Sweetwater Authority drinking water currently meets state and federal safety standards.



  1. What is Sweetwater Authority doing to comply with the new EPA standards? Does Sweetwater Authority need to conduct additional testing?
  2. Why is the Environmental Protection Agency (EPA) updating PFAS standards? What is the new threshold for PFAS? How does it compare to the old threshold? When does Sweetwater Authority need to comply?
  3. What were the most recent testing results? Why would there be a fluctuation between the testing results? Why didn’t Sweetwater Authority detect this sooner?
View All