In 2022, Castle Rock Water collected over 3,000 samples and conducted tests throughout our system to ensure that the water we deliver to your home is as clean and safe as possible, and meets or exceeds all state and federal regulatory standards. Every year, we provide a Water Quality Report that shows the results of our continuous laboratory testing for regulated substances. To date, PFAS compounds are not regulated.
Prior to June 15, 2022, the EPA had a health advisory limit for two PFAS compounds (PFOA and PFOS) at 70 parts per trillion (or 0.07 ppb). Castle Rock Water's drinking water had tested well below that limit for PFOA and PFOS.