The U.S. Geological Survey (USGS) intends to award a non-competitive purchase order to HydroTech ZS Consulting for Long-Term Deployment Modules (LDMs) and accessories to prevent sensor fouling, with delivery to Baton Rouge, LA within 90 days of award. The modules are uniquely compatible with In-Situ AquaTroll 200 and YSI EXO3 sensors used at coastal water quality stations, and no other vendor offers the required air chamber evacuation technology. This notice is for informational purposes only and is not a request for competitive quotations, though all responsible sources may submit a quotation for consideration. No budget amount is specified. The anticipated award date is 09/01/2026, and vendors must be registered in SAM.gov.