Full-service Chlorine Dioxide Generation Program

The City of Waxahachie, Texas is soliciting proposals through a Request for Proposals (RFP) for a full-service chlorine dioxide generation program to serve two municipal water treatment facilities: the Howard Road Water Treatment Plant and the Robert W. Sokoll Water Treatment Plant. The procurement seeks a comprehensive, turnkey solution encompassing equipment provision, installation, chemical supply, routine maintenance, regulatory testing, and ongoing technical support for a two-chemical chlorine dioxide generation process. The Howard Road WTP operates at 9 MGD average capacity with an approximate chlorine dioxide dose rate of 1.22 mg/L and estimated annual sodium chlorite usage of 135,000 pounds, while the Robert W. Sokoll WTP operates at 10 MGD average capacity with a 1.25 mg/L dose rate and estimated annual usage of 180,000 pounds. Qualified vendors must demonstrate a minimum of five years of experience in chlorine dioxide system design, installation, and maintenance for water utilities; provide a project manager with 5+ years in chlorine dioxide system design and commissioning; maintain a fully equipped service center within 250 miles of Waxahachie with critical spare parts inventory; and provide a minimum of three references from similar-scale contracts operating at 10-20 MGD capacity. A mandatory pre-proposal meeting and site visit is scheduled for May 21, 2026, at 9:30 a.m. at the Robert W. Sokoll Water Treatment Plant, with questions due by May 26, 2026, at 1:00 p.m., and all proposals due electronically through the OpenGov procurement portal by May 28, 2026, at 10:00 a.m., followed by public opening at 10:15 a.m. Evaluation criteria are weighted as follows: cost (40 percent), experience and qualifications (25 percent), project manager experience (25 percent), and references (10 percent).

The RFP does not specify set-aside designations or restrictions for disadvantaged enterprises, and no incumbent vendors or current contractors are identified in the procurement documents. Pricing shall be structured as a single, all-inclusive unit price per pound of sodium chlorite delivered, with actual billing based on certified scale tickets indicating net weight of material delivered, though a specific budget range or award value is not disclosed. The contract operates under a zero-CAPEX implementation model, with the vendor retaining full ownership of all equipment throughout the contract term, which shall commence October 1, 2026, for an initial two-year term with options to renew for up to eight additional one-year terms, for a maximum total contract period of ten years. Contract pricing must remain firm for at least the first full year, with any subsequent price increases limited to no more than 5 percent annually and subject to City approval, permitted only based on documented raw material price index changes or supplier-imposed increases. Successful contractors must maintain comprehensive insurance coverage including $1,000,000 commercial general liability, $1,000,000 business auto liability, and statutory workers' compensation coverage, and the City reserves the right to award a single contract, split awards, or no award.