Sundog Trunk Main Sewer Phase C3

City of Prescott - Public Works has issued notice inviting bids, solicitation 2026-NIBCONST-559.

The City of Prescott, Arizona, is advancing its long-term wastewater infrastructure centralization initiative through the Sundog Trunk Main Sewer Phase C3 Project. This critical capital improvement project supports the consolidation of wastewater treatment operations from the Sundog Wastewater Treatment Plant to the more modern and expandable Airport Water Reclamation Facility. It addresses capacity limitations, mitigates risk of sanitary sewer overflows highlighted by 2023 storm events that led to an ADEQ consent order, lowers long-term operations and maintenance costs, and enhances overall system reliability for current and future growth. Strategic Importance This phase is part of a multi-year, phased program to consolidate Prescott’s wastewater system. It directly supports the 2023 Water and Wastewater Models Master Plan by increasing conveyance capacity, eliminating bottlenecks from undersized or failing pipes, and enabling the eventual decommissioning of the Sundog plant. Benefits include improved environmental protection, enhanced public health and safety, and cost savings through more efficient operations. Opportunity for Vendors This is a significant public works project with substantial construction value. It offers experienced contractors and subcontractors in sewer force main installation, lift station construction, directional drilling or open-cut methods, pipeline rehabilitation, and utility work in urban/historic corridors an excellent opportunity to partner with the City of Prescott on a high-impact community infrastructure upgrade.

The Sundog Trunk Main Sewer Phase C3 Project is essential to The City of Prescott's centralization initiative consolidating treatment operations from the Sundog Wastewater Treatment Plant (SWTP) to the more modern and expandable Airport Water Reclamation Facility (AWRF). This multi-year program, adopted by a City Council resolution in 2015, aims to create a single, centralized facility combining SWTP’s 3 MGD and AWRF’s 4.75 MGD capabilities. Phase C3 represents a critical component of this centralization effort. It builds on prior phases by enabling the redirection of flows from the downtown and surrounding areas to the Airport Water Reclamation Facility. Completion supports the eventual decommissioning of the Sundog plant, delivering significant long-term operational savings, improved system reliability, and enhanced environmental compliance. This project is vital for several reasons: Capacity and Growth: It addresses current and future wastewater capacity limitations identified in the 2023 Water and Wastewater Models Master Plan, supporting Prescott’s development and existing population needs. Environmental Protection and Regulatory Compliance: Storms in early 2023 caused sewer surges leading to an Arizona Department of Environmental Quality notice of violation and consent order. Centralization projects like C3 increase surge capacity and mitigate overflow risks. Infrastructure Renewal: It replaces or augments aging, undersized, or failing infrastructure lowering maintenance costs and minimizing sanitary sewer overflows. Community and Economic Benefits: Reliable wastewater service protects public health, supports tourism and local businesses, and enables redevelopment of the Sundog site for other public uses. Vendors who deliver high-quality work on this project will directly contribute to Prescott’s resilience, environmental stewardship, and fiscal responsibility.

Responses are due October 15, 2026 at 2:00 PM MST.

Questions must be submitted by October 6, 2026 at 5:00 PM MST.

A mandatory pre-proposal conference is scheduled for September 8, 2026 at 9:00 AM MST at City of Prescott Public Works Department, 433 N. Virginia Street, Prescott, Arizona 86301 or via optional Microsoft Teams Meeting. Microsoft Teams Meeting https://teams.microsoft.com/meet/211996783618273?p=GczCsr4Smm5ZFAacFH ID: 211 996 783 618 273 Passcode: ex72u98V.

Commodity categories: Utilities; Utilities; Water, Sewage and Other Systems; Construction; Construction of Buildings; Nonresidential Building Construction; Heavy and Civil Engineering Construction; Utility System Construction.

Contact: Jason Ferguson, Capital Projects Manager (jason.ferguson@prescott-az.gov, (928) 350-5230).

9 documents are attached to the notice: Sample Construction Contract; City of Prescott Supplement to the Maricopa Association of Governments (MAG) Uniform Standard Specifications and Details for Public Works Construction (Technical Specifications); Sundog Trunk Main Sewer C3 Civil_Final Plan Set; Sundog Trunk Main Sewer C3_Lift Station Final Plan Set; Sundog Trunk Main Sewer C3_Special Provisions; Sundog Trunk Main Sewer C3_Special Provisions Appendix A; Sundog Trunk Main Sewer C3_Special Provisions Appendix B; Sundog Trunk Main Sewer C3_Lift Station Specifications.

The full solicitation document, addenda and the question-and-answer thread are on the agency's OpenGov portal at https://procurement.opengov.com/portal/prescott-az/projects/290881. Responses are submitted electronically there, and a free vendor account is required before you can upload one.