PFAS and Wastewater

Wastewater entering San Francisco Public Utilities Commission (SFPUC) treatment plants contains low levels of perfluoroalkyl and polyfluoroalkyl substances (PFAS), primarily from homes but also from businesses and office buildings. We do not produce or introduce PFAS in any way. For background information about PFAS and associated health risks, as well as information about PFAS and drinking water, see the PFA's and drinking water fact sheet.

We are working with our partners to monitor and develop solutions that address this emerging contaminant. The SFPUC is participating in a study to identify sources of PFAS, carried out through the Bay Area region of the California State Water Resources Control Board, along with Bay Area Clean Water Agencies and the San Francisco Estuary Institute.

We are working through the California Association of Sanitation Agencies to support (directly or indirectly) some of the state legislation regulating PFAS.

How You Can Help as a Consumer

As a consumer, you can avoid using products that contain PFAS, such as the following:
•    Rain jackets – Choose products that are free of PFAS, heavy metals, PVC, and phthalate.
•    To-go food containers – Avoid using this product and consider bringing your own containers.
•    Scotchguard – Avoid using this product. 
•    Floor waxes and cleaning products – Switch to chemical-free options and avoid purchasing carpets treated with perfluorinated compounds.
•    Microwave popcorn bags – Avoid using this product and use a microwavable glass container with a lid instead.
•    Dental floss – Choose products made with cotton and natural waxes or silk.
•    Car wax/polish – Avoid using this product.
•    Carpet – Avoid products claiming to be stain-, water-, or oil-resistant unless the manufacturer says they are completely fluorine-free.
•    Furniture textiles – Choose products without stain-resistant coatings.
•    Cosmetics – Choose products that don’t contain ingredients like Fluor, Fluoro, or PTFE.
•    Non-stick cookware – Avoid using this product. Beware of products that claim to be PFOS or PFOA-free; they may contain similar substitutes. Use cast iron and stainless steel instead.
•    Ski wax – Avoid using this product.