Biosolids are the highly treated solid waste separated from wastewater. Just like the liquids, the solids in wastewater also get treated at one of SFPUC's two 24-hour wastewater treatment plants.
Biosolids and Environmental Management System (EMS)
To ensure sound and safe management of biosolids, a voluntary Environmental Management System (EMS) is now being developed by the National Biosolids Partnership (NBP). The NBP consists of members from the Association of Metropolitan Sewerage Agency, the Water Environment Federation, the U.S. Environmental Protection Agency (EPA) and other stakeholders including the general public. Those facilities who pledge to follow the EMS are agreeing to follow community-friendly practices in addition to being in compliance with applicable state and Federal regulations. Community friendly practices refer to the control of odor, traffic, noise, and dust as well as the management of nutrients. Those who pledge to follow the EMS will be subjected to audit by impartial independent third parties.



