The U.S. Geological Survey (USGS) intends to award a purchase order to Cyano Holdings Inc., doing business as GreenWater Laboratories, for the processing of liver samples using the 3-methoxy-2-methyl-4-phenylbutyric acid (MMPB) method. This procurement aims to support long-term monitoring projects on the Snake River, specifically investigating the health effects of harmful algae blooms on endangered juvenile fall Chinook salmon. The MMPB method is preferred over the ELISA method due to its ability to detect both bound and unbound toxins in fish tissue, making it crucial for accurate analysis. Interested parties may submit capability statements via email to Victor Nuno at vnuno@usgs.gov by January 21, 2025, at 12:00 ET, as this notice is not a request for competitive quotes and no solicitation will be issued.