The City of Mesa issued a competitive RFP (2021108) for the procurement of a Total Kjeldahl Nitrogen (TKN) Analyzer and related services for its Water Resources Compliance Laboratory. After receiving proposals from two vendors (Buchi and YSI), the City issued a Notice of Intent to Award on May 26 2021 and a final Notice of Award on June 7 2021, awarding the contract to BUCHI, Corporation. The agreement is a firm‑fixed‑price, 5‑year requirements contract with the option to extend for ten additional one‑year periods, totaling an eleven‑year term. The scope includes the delivery, installation, training, a one‑year warranty, and a mandatory ten‑year extended service contract covering parts, labor, and software support. A trade‑in credit is offered for specified Buchi components. Payments are structured as $140,000 in Year 1 followed by $25,000 annually for the next ten years, for a total potential outlay of $390,000.