Whitlock Treatment Plant Ammonia Gas Line Replacements

Pueblo Water is requesting proposals for demolition and installation of a new ammonia gas piping system at the Whitlock Treatment Plant, with proposals due September 29, 2026, and mandatory pre-proposal conference and site visit on September 17, 2026, at 10:00 a.m. MST at 1920 W. 11th Street, Pueblo, Colorado. Attendance at the conference and site visit is required for proposal submission eligibility.

The scope covers complete replacement of deteriorating Schedule 80 welded socket joint ammonia gas piping originally installed in 1990, including removal of existing overhead and outdoor utility area piping; installation of new piping segments from bulk tank room to feeder room and from feeder room to chemical ditch; installation of supports, hangers, valves, and fittings; protective coatings; pressure and leak testing; steam cleaning; nitrogen drying; commissioning; and delivery of as-built drawings and welding certifications. Work must be performed Monday through Friday, 7:00 a.m. to 3:30 p.m., during Pueblo Water business hours.

Contractors must demonstrate five or more successfully completed projects of similar scope involving industrial gas piping systems, experience with welded socket joint fabrication, and employment of certified personnel for welding and pressurized gas systems work. Active Colorado licensing and insurance are mandatory. Required coverage includes Commercial General Liability at $2 million, Automobile Liability at $1 million combined single limit, Umbrella Excess Liability at $1 million, and Worker's Compensation per Colorado statutory requirements.

Contractors must submit lump sum pricing for complete design, build, and installation, inclusive of all labor, materials, equipment, packaging, and freight. Liquidated damages of $400 per day apply for failure to meet the December 18, 2026, completion deadline. Evaluation criteria are total cost of ownership (50 points), compatibility with existing systems (10 points), contractor experience (10 points), deployment ease (10 points), ability to meet present and future needs (10 points), and completion timeline (10 points), with award based on business judgment rather than numerical scoring alone. Notice of award is anticipated October 21–23, 2026.