Tracer Discharge Measurement System IAW Salients

The U.S. Geological Survey South Atlantic Water Science Center is seeking to procure two complete Tracer Discharge Measurement Systems utilizing the sodium chloride tracer dilution method for determining stream discharge in fast-flowing, turbulent waters. The systems must be portable and compact, featuring integral displays, minimum 8 MB internal memory, operating temperatures from -20°C to 60°C, rechargeable AA batteries with at least 40-hour runtime, USB-C and Bluetooth communications, and IP66 mechanical ingress protection ratings. Each system must include compatible conductivity probes with integral cables of at least 30 feet, integrated temperature compensation, operating ranges of 0 to 2,000 S/cm with 0.1 S/cm resolution, and protective transport cases with telescopic handles and wheels. The Request for Quote (RFQ) 140G0126Q0110 was issued on April 13, 2026, with written quotes due on April 16, 2026, at 11:00 AM Eastern Daylight Time. Questions regarding the solicitation must be submitted to Cynthia Nicanor at cynthia_nicanor@ios.doi.gov before April 14, 2026, at 11:00 AM EDT, with questions received after that deadline not guaranteed a response.

This acquisition is designated as a total small business set-aside specifically for women-owned small business (WOSB) concerns, with the NAICS code 334519 (Other Measuring and Controlling Device Manufacturing) and a small business size standard of 600 employees. The solicitation seeks the Kisters MON32_BXSOM20314XXXX SOMMER TQ-S Bundle V3, Trolley Version, or equivalent brand products that meet all specified salient characteristics. Delivery must be completed within 30 days from the date the contractor receives the purchase order to the South Atlantic Water Science Center located at 44 Buck Shoals Road Unit 704, Arden, NC 28704-3307. The anticipated award date is May 1, 2026, and all vendors must be registered at sam.gov to be eligible for award. Payment will be made via electronic funds transfer through the Department of the Interior's Invoice Processing Platform, with invoices required to be submitted within 90 days of the performance period's expiration.