Biosolids Management System

The City of Santa Rosa is a Certified Platinum level Biosolids Management System Agency.

Santa Rosa Water is committed to customer service and protection of the environment by providing high-quality biosolids treatment. This is accomplished by our Biosolids Management System, which ensures the safe and optimum beneficial use of this product.

What is a Biosolids Management System?


A Biosolids Management System (BMS) is a set of standard procedures and steps developed by the National Biosolids Partnership that biosolids managers can use to ensure the environmental integrity of their biosolids program, improve the effectiveness of their operations, meet regulatory requirements and address issues of concern to stakeholders and the public.

View Santa Rosa's Biosolids Management System Manual (PDF).

Biosolids Management System (BMS) Certification


After completing a rigorous audit process, the City of Santa Rosa's BMS Program was officially re-certified as a Platinum Level NBP BMS Agency in August 2014. Santa Rosa is one of 28 cities in the U.S., and one of five in California with this certification.

To obtain a Tier 4 Platinum-Level Certification, the organization has completed 3rd party BMP verification audit and at least one 3rd party interim audit with a commitment to a regular schedule of 3rd party interim audits and internal audits.  To maintain platinum-level certification, the organization must complete interim audits (at least two 3rd party interim audits between verification audits), must submit interim or internal audit reports to NBP annually, and complete another 3rd party verification audit (or re-verification) after five years.
National Biosolids Partnership Logo

About the National Biosolids Partnership (NBP)


The National Biosolids Partnership (NBP) is a non-profit agency that was formed by the National Association of Clean Water Agencies (NACWA), Water Environment Federation (WEF), and U.S. Environmental Protection Agency (EPA). NBP is now operated by WEF, in collaboration with the NACWA and local and regional biosolids management organizations across the U.S. and Canada with the support of the U.S. EPA. The NBP serves as the information clearinghouse on effective biosolids practices and offers an EMS-based certification program that requires participating organizations to go beyond regulatory requirements.

The NBP has developed a national certification program for biosolids management with the goal of continuously improving outcomes related to relationships with interested parties, environmental performance, regulatory compliance and quality management practices.
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Biosolids Management System Reports


  1. Audit Reports
  2. Performance Reports
  3. Goals & Objectives
  4. Annual Reports


BMS Audit Reports


The City of Santa Rosa conducts annual audits of the BMS program in order to determine the effectiveness of the biosolids program. We invite you to be involved in the audit process. If you would like to participate in an audit, please contact us.

View Most Recent Audit Report (PDF) | View All Audit Reports