AQUATIC TOXICITY TESTING SERVICES

The City of Stockton is seeking proposals from qualified laboratories to provide Aquatic Toxicity Testing Services, including quarterly toxicity testing and as-needed Toxicity Identification Evaluation (TIE) and Toxicity Reduction Evaluation (TRE) Technical support services. The selected laboratory will be required to perform chronic toxicity testing on the Wastewater Recovery Center (WRC) effluent and provide quality assurance/quality control documentation. The laboratory must also comply with the California Environmental Laboratory Accreditation Program (CA ELAP) and the National Environmental Laboratory Accreditation Program (NELAP) requirements. • The laboratory must have experience performing chronic toxicity testing using the TST analysis specified in the Statewide Toxicity Provisions. • The laboratory must have a secure sample holding location and provide sample containers and coolers as needed. • The laboratory must initiate chronic toxicity tests within 36 hours of sample collection and report results as PASS or FAIL and % effect (TST). • The laboratory must comply with the NPDES permit requirements for chronic toxicity testing. • The laboratory must provide quality assurance/quality control documentation and retain the City's samples for at least twenty (20) calendar days after submittal of the report of results to the City.