Mobile Weather Stations for SWRO Water Resources

The Department of the Interior Bureau of Indian Affairs Northwest Region seeks seven mobile weather stations for the Southwestern Regional Office Water Resources Division, with proposals due August 3, 2026, and questions due July 29, 2026. The procurement is set aside 100% for Indian Economic Enterprises (IEE) under the Buy Indian Act.

Place of performance is Albuquerque, New Mexico (1001 Indian School Road NW, Albuquerque, NM 87104), with delivery required by August 1, 2026. The NAICS code is 334513, Instruments and Related Products Manufacturing, with a small business size standard of 750 employees; PSC is 6660, Meteorological Instruments and Apparatus.

Equipment must be research-grade mobile weather stations comparable to the Campbell ET107, mounted on tripods up to 10 feet in height. Each system requires a data logger (Campbell CR1000M or similar) with 4 MB serial flash memory minimum, 16 single-ended or 8 differential analog input channels, program execution capability of 100 ms to 1 day, and 3 minutes per year timing accuracy; precipitation/rain gauge (Texas Electronics TE525-5m or similar) with 135 ms or faster closure time; solar radiation sensor (Campbell CS305-ET or similar) with 300–1100 nm spectral range and 0–2000 W/m² measurement range; humidity and temperature sensors (Campbell HMP60-ETS or similar) with –40 to 60°C range and 3–5% humidity accuracy; and wind speed and direction gauge (Campbell MW 034B-ET) with 0–75 m/s range and 5° directional accuracy. All systems must include automatic evapotranspiration calculation using the Penman-Monteith method and complete mounting, calibration, and power kits.

Award will be firm-fixed-price to the responsible offeror with the lowest price meeting all specifications under lowest-priced, technically acceptable evaluation. Offerors must submit a signed Indian Economic Enterprise Representation Form and DIAR 1452.280-4 certification. Amendment 0002, effective July 28, updated specifications; Amendment 0001, effective July 27, converted the set-aside from ISBEE to IEE and extended deadlines.