AQUATIC TOXICITY TESTING SERVICES

The City of Stockton Municipal Utilities Department is soliciting proposals under RFP PUR 27-003 for qualified laboratories to provide aquatic toxicity testing services. The primary scope involves conducting quarterly chronic toxicity analyses on Wastewater Recovery Center effluent to ensure compliance with NPDES permit Order No. R5-2025-0027 and federal QA/QC standards. Additionally, the selected proponent must provide technical support for Toxicity Identification Evaluation (TIE) and Toxicity Reduction Evaluation (TRE) services on an as-needed basis, including the development of TRE Work Plans within 30 days of any failed monitoring test. The contract features an initial five-year term with an option for a five-year extension, requiring a standard turnaround time of no more than 14 business days for services. Proponents must hold current CA ELAP or NELAP certifications and meet stringent insurance requirements, including $2 million in general liability and pollution/professional liability coverage. The City utilizes a qualifications-based selection process, evaluating labs on their technical ability, experience, and price proposals. Submissions are due by 2:00 PM PST on September 3, 2026, and must include a technical proposal and a separate cost proposal. Awardees are required to maintain a City of Stockton business license and adhere to strict confidentiality and non-discrimination standards. Payment is processed monthly within 30 days of invoice acceptance, subject to annual fiscal year appropriations.