PFAS, also known as “forever chemicals”, are a group of synthetic chemicals found almost everywhere in the environment, some of which make their way to wastewater treatment plants (WWTPs). The US EPA will soon release a draft risk assessment to determine whether there is a need for PFAS regulations. Though it will not include the risk management portion and therefore will not be a final document, it may drive national and state-level regulatory limits. This post aims to provide a list of resources to stay up to date on the latest regulations and research related to PFAS.

In addition to their many other beneficial uses, biosolids can be used to restore fire-damaged lands. Research trials have demonstrated that applying biosolids to fire-damaged lands improves soil health, encourages revegetation, and decreases runoff. This post summarizes two of these trials and provides links to additional resources on this topic.

In addition to producing Class B cake and dried biosolids onsite, many Bay Area agencies contract with third-party private companies like Synagro and Lystek for offsite processing and management of their solids. For more information on these companies’ processing facilities and their Class A biosolids products, click on the link below.

This product profile describes the various technologies available for biosolids drying and the types of dried biosolids products, including their typical characteristics and the markets in which they can be used.