PWAS and Blend Tank Mixers

The North Texas Municipal Water District (NTMWD) is seeking bids for the procurement and installation of specialized mixers for the PWAS Holding Tank and Blend Tank as part of Project 25-205-B. The solicitation specifically requires hyperboloid and vertical turbine mixers with precise technical specifications, including 7.5 horsepower motors operating at 1800 rpm, 460V 3-phase power, and the capability to mix contents with up to 7.4% solids concentration. Acceptable manufacturers are limited to Invent Hyperclassic Series or engineer-approved equivalents, with specific requirements for baseplate mounting in tanks measuring 22' x 12' x 18'-8". Bidders must provide comprehensive documentation including shop drawings, CFD modeling analysis, materials specifications, and technical documentation. The pre-bid meeting is scheduled for Wednesday, September 3, 2025, at 9:00 AM Central via Webex, with bid submittals due prior to Thursday, September 11, 2025, at 10:00 AM Central. The contract duration is one year from the purchase order issuance date, with NTMWD reserving the option to extend services for an additional ninety days.

The procurement appears open to all qualified vendors, with no specific set-aside designations mentioned. Contractors must maintain specific insurance coverage, including $1,000,000 per occurrence Commercial General Liability, $500,000 Automobile Liability, and Workers' Compensation with $500,000 Employer's Liability limits. Electronic bid submission is encouraged through the Bonfire platform at ntmwd.bonfirehub.com, with hard copy submissions also accepted at NTMWD's Wylie, Texas facility. Bidders must provide three references from similar projects within the past three years and comply with Texas Government Code requirements, including certifications related to contracts with energy and firearm industries. The district intends to award to the lowest responsive, responsible bidder meeting specifications and reserves the right to compare bids against State and/or Interlocal contracts. While no specific budget range is explicitly stated, the comprehensive technical specifications and detailed installation requirements suggest a significant investment in advanced mixing technology for the water treatment facility's solids handling infrastructure.