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.