Species Sensitivity Screening (Every 15 Years or as Needed)

The contract calls for multi-species sensitivity testing to determine the most vulnerable organism in the local ecosystem, with the goal of establishing a baseline for ongoing environmental monitoring. This testing must be conducted every 15 years or triggered by significant changes to effluent discharges, ensuring that regulatory and ecological protections remain responsive to new conditions. The scope requires comprehensive evaluation across multiple species to accurately identify the indicator organism that best reflects ecological risk from potential contaminants. This subcontract is issued by the City of Stockton under NAICS code 541380, which covers scientific testing and analysis services. The solicitation was posted on August 6, 2026, with a response deadline of September 3, 2026. The work is expected to take place in California, though specific location details are not provided. The contract is open to qualified subcontractors without any designated set-aside classification, and interested parties must submit their proposals through the public procurement portal before the stated deadline.