Castle Rock Water's treatment process

Public health and the quality of your drinking water is Castle Rock Water’s top priority. Castle Rock Water continues to meet or exceed all state and federal drinking water standards.

Castle Rock Water strives to provide clean, safe, great-tasting drinking water to its customers. The Town’s water comes from a diversity of sources, including groundwater, surface water, reuse water and imported water. Groundwater is treated at four of our treatment plants.  To date, PFAS has not been sampled for in the raw groundwater supply to these plants.   Imported water comes already treated from Parker and Aurora.  To date, this supply has also not been sampled for PFAS.  The Plum Creek Water Purification Facility treats groundwater, surface water and reuse water.  PFAS has been detected in the surface water and the reuse water.  This water is treated using a multi-barrier process that includes granular activated carbon, which is an approved technique to reduce PFAS levels. (LINK) GAC is one of the best-known methods to remove PFAS; currently, there are only a few treatment plants in Colorado with this process. Read more about GAC systems.

Show All Answers

1. Why are we hearing about PFAS now if they've been around for decades?
2. Are PFAS regulated?
3. What is a health advisory?
4. What are the potential health effects of PFAS?
5. Why aren't PFAS listed in the 2022 Water Quality Report?
6. Voluntary sampling and results
7. Required PFAS Sampling in 2023
8. Castle Rock Water's treatment process
9. What is Castle Rock Water doing about PFAS?
10. If PFAS are in so many consumer goods, why haven't I heard about the PFAS levels in them?
11. Is bottled water safe from PFAS?
12. How can you help protect water quality?
13. I received information about a water filter, but a company gave me a quote that cost hundreds or thousands of dollars. Do I really need a water filter?