title
Accept the 2026 Annual Biosolids Land Application Report and Biosolids Research Project results from the Department of Resource Management
body
Published Notice Required? Yes ___ No _X _
Public Hearing Required? Yes ___ No _X _
DEPARTMENTAL RECOMMENDATION:
The Department of Resource Management recommends that the Board of Supervisors accept the 2026 Annual Biosolids Land Application Report and Biosolids Research Project results.
SUMMARY:
Solano County Code, Chapter 25, requires that a report be submitted annually to the Board of Supervisors presenting the results of the past season's activities on the land application of Class B biosolids in Solano County. The report documenting the results of the 2025 season for the land application of biosolids in Solano County is provided as the 2026 Annual Biosolids Land Application Report (Attachment A). The annual report must also include an update on the generator's progress toward utilizing alternative technologies for the reuse of biosolids other than land application or landfilling. That update is provided in the 2025 Bay Area Clean Water Agencies (BACWA) annual summary memorandum (Attachment B). The 2026 annual report also includes the results of the Solano County-funded Biosolids Research Project, which studied the fate of per- and polyfluoroalkyl substances (PFAS) in biosolids after land application.
FINANCIAL IMPACT:
The cost of managing and overseeing the biosolids land application program is typically recovered through fees collected for site registration and land spreading charged to the applicant. Costs for biosolids material sampling and sample analysis are also charged to the applicant. A per-acre surcharge for research, charged to the applicant, is used for conducting research activity to improve our understanding of potential impacts, if any, of the land application of biosolids. Class B biosolids land application has not occurred in Solano County since 2023.
The costs as...
Click here for full text