Water Quality Sondes

The Iowa Department of Natural Resources (DNR) is issuing a Request for Quote (RFQ) for the procurement of water quality monitoring equipment under solicitation number 26CRDFBCLULL-0031G. The DNR seeks to purchase four Solinst Eureka Manta+35 Water Quality Probes, multiparameter sondes designed for monitoring water quality in fresh, brackish, and marine environments. Each sonde will be equipped with standard sensors including temperature, dissolved oxygen, pH, conductivity, turbidity, and a chlorophyll A sensor with a central wiping system to reduce biofouling. The procurement also includes eight external lithium-ion battery packs and two battery chargers as accessories. The RFQ opened on February 19, 2026, at 1:00 PM CST, with responses due by March 5, 2026, at 2:00 PM CST. Delivery is required to 112 252nd Ave, Spirit Lake, Iowa 51360 on or before April 1, 2026, on an FOB Destination basis. Bidders must be authorized manufacturer representatives capable of extending manufacturer warranties, and all bids must accept the DNR Standard Contract Conditions and General Conditions as posted on the Iowa DNR website.

The DNR specified the Manta+35 model to illustrate desired characteristics but permits vendors to propose State of Iowa-approved equivalent products with full specifications and clearly noted deviations. No set-asides or restrictions on organization types are specified in the solicitation materials provided. Payment terms follow Iowa Code 8A.514, allowing the State of Iowa sixty days to pay invoices, though bidders may offer discounts for accelerated payment within fifteen or thirty days. No incumbent vendors, budget values, or award ranges are identified in the available documentation. Inquiries regarding the solicitation should be directed to Colton Lullmann at colton.lullmann@dnr.iowa.gov, and no prerequisites are required to submit a bid.