NPDES Toxicity Testing and Bioassay Services

This subcontract opportunity, issued by the Department of Defense under agency W6QK Acc-Ri, seeks an accredited environmental laboratory to provide off-site toxicity testing and bioassay services for prime contractors at the Pine Bluff Arsenal facility. The scope of work involves performing 48-hour static-renewal toxicity tests on fathead minnows and Daphnia pulex across four NPDES outfalls in accordance with permit AR0001678. Additionally, the selected provider will be responsible for conducting Toxicity Identification Evaluations and Toxicity Reduction Evaluations, delivering all necessary test results and reports for regulatory submission. The project is designated as a total Small Business Set Aside under NAICS code 541380, with the place of performance located in White Hall. Interested parties must submit their responses by November 12, 2026, following the posting date of October 29, 2026.