Biosolids Management Services
OC San seeks a qualified contractor for the beneficial reuse of approximately 300 wet tons per day of biosolids. Services include processing, transportation, and land application or composting, with proposals due October 20, 2026.
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Important dates
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Published
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Pre-proposal conference
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Q&A deadline
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Submission deadline
Deadline passed
AI overview
Orange County Sanitation District (OC San) is issuing this Request for Proposals (RFP) to solicit qualified and experienced contractors for the management of biosolids generated at its wastewater treatment facilities. The selected contractor will be responsible for the beneficial reuse, and possibly transportation, of approximately 300 wet tons per day (tpd) of biosolids. The biosolids are designated for beneficial reuse through composting, land application, or other qualifying management practices. The contractor must comply with all applicable federal, state, and local regulations.
The scope of work includes processing, transporting, and managing biosolids in accordance with OC San's requirements and all environmental permits. The contractor is expected to provide a comprehensive plan for biosolids management, including emergency response procedures as outlined in the Situational Annex B for Emergency Solids Release Recovery Transport and Storage. The contract term and specific obligations are detailed in the Draft Service Contract (Exhibit D) and the Scope of Work (Exhibit A). Key dates include a pre-proposal conference on September 22, 2026 at 4:00 PM, a Q&A deadline on September 24, 2026 at 9:00 PM, and a proposal submission deadline of October 20, 2026 at 9:00 PM.
Proposals must be submitted electronically through the OC San procurement portal. The submission must include a technical proposal, a cost proposal using the provided Exhibit B form, and all required supporting documents. The cost proposal should detail pricing for the management services, including any transportation costs. The contract will be awarded based on the evaluation criteria outlined in the RFP, which include technical approach, experience, qualifications, and cost. OC San reserves the right to reject any or all proposals and to waive any irregularities.
Evaluation of proposals will be based on several criteria, including the proposer's qualifications, experience with biosolids management, proposed methods for beneficial reuse, compliance with safety and regulatory requirements, and cost effectiveness. The contract is anticipated to be a multi-year service agreement. All proposers must also comply with OC San's insurance requirements and general provisions as detailed in the RFP documents.
Resources & contact
Proposal Document
View proposal documentSolicitation number
S-2026-741BD
Contact
- Donald Herrera
- dherrera@ocsan.gov
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