What is PFAS?

According to the U.S. Environmental Protection Agency (EPA) perfluoroalkyl substances, or PFAS, are a category of manufactured chemicals that have been used in industry and consumer products since the 1940s. PFAS have been used in a variety of products, including nonstick cookware, waterproof clothing, and firefighting foam, as well as in certain manufacturing processes. PFAS tend to break down extremely slowly in the environment and can build up in people, animals, and the environment over time. Even though some specific PFAS have been largely phased out due to health and environmental concerns, they may still be found in the environment.


In January 2023, the Pennsylvania Department of Environmental Protection (PA DEP) Environmental Quality Board established maximum contaminant levels (MCL) for Perfluorooctanoic Acid (PFOA) and Perfluorooctanesulfonic acid Sulfonate (PFOS), which are part of a larger group of chemicals referred to as PFAS. Learn more about the status of regulation from the PA DEP and the EPA.



Bureau of Water Actions on PFAS

The City of Lancaster Bureau of Water has already begun quarterly monitoring of PFAS. Compliance monitoring results will be provided as part of the City’s annual Water Quality Report. You can view the latest report on the City’s website at cityoflancasterpa.gov/current-water-quality-report.


The City of Lancaster Water Bureau’s priority is to deliver high-quality drinking water that meets all PA DEP and EPA regulations.  


Please see the table below for the results of the quarterly monitoring of PFAS.




The source of PFAS in the City’s source water, the water it draws from the Conestoga and Susquehanna rivers, is unknown. The City’s sampling results are currently compliant with all applicable federal and state PFAS regulations including the running annual average.


The City is committed to providing its customers with a safe reliable source of drinking water.



If you are concerned about PFAS in your drinking water, use of a carbon activated (charcoal) filter may minimize your exposure. Bottled water is not always a good alternative. Studies have shown PFAS contamination in some bottled water. Before buying and using bottled water check to see if the company has tested for PFAS and what the results were at www.epa.gov/pfas/meaningful-and-achievable-steps-you-can-take-reduce-your-risk.



WATER (7 AM TO 3:30 PM)

(717) 291-4820



(717) 291-4816