Biosolids Transportation and Management Services

The City of San Diego Public Utilities Department is seeking information from qualified firms on how they would provide comprehensive biosolids transportation and management services for approximately 175,000 wet tons per year of Class B biosolids generated at the Metropolitan Biosolids Center. The solicitation explores options for bulk land‑application, out‑of‑state transport, composting to produce Class A material, alternative non‑bulk market processing, permitting, regulatory compliance, and contingency landfill disposal. Respondents will be asked to outline capabilities, risk assessments, subcontractor management approaches, regulatory expertise, and pricing considerations for a potential future Request for Proposals. • Transport of Class B biosolids within California and to out‑of‑state bulk agricultural markets. • Land‑application of biosolids and alternative processing (composting, thermal drying) to generate Class A/EQ material. • Management of regulatory permitting, compliance, and reporting for EPA, California, and local requirements. • Development of marketing and partnership strategies for non‑bulk markets (fertilizer blending, nurseries, alternative fuels). • Evaluation of two procurement structures: a single integrated contract or two separate contracts (land‑application vs. processing/alternative markets).