The National Oceanic and Atmospheric Administration (NOAA) is seeking to procure a sole source Integrated Water Quality Monitoring System from YSI, Inc. to support research conducted by the Ecotoxicology Branch at its mesocosm testing facility in Charleston, South Carolina. The system must include a complete 'TurnKey' setup, featuring a datalogger, four sondes with probes, and all necessary components for data transmission, ensuring compatibility with existing EXO2 series sondes already owned by NOAA. This procurement is critical for enhancing real-time water quality observation capabilities during long-term experiments, with a notice period open from August 27, 2024, to September 11, 2024. Interested parties may submit a Capability Statement to the primary contact, Chelsea Vera, at chelsea.vera@noaa.gov by the deadline for consideration.