The U.S. Geological Survey Office of Acquisitions and Grants awarded a purchase order to Aquatics Associates Inc., a woman-owned small business, on September 25, 2026, for macroinvertebrate sample analysis with a ceiling value of $30,700.00. The order carries a total small business set-aside. Work is performed in Denver, Colorado, and involves processing and analyzing benthic macroinvertebrate samples collected from streams near Colorado Springs and Pueblo, Colorado, following Barbour and others (1999) standards. Personnel must possess expertise in entomology and extensive knowledge of benthic taxa in the Southern Rockies and Southwestern Tablelands Level III ecoregions. The contractor provides all labor, equipment, materials, and travel. Performance extends through September 24, 2031. This purchase order originated from a pre-solicitation market research notice posted September 9, 2026.