On-Call Water Resources Engineering Services

Pinal County, Arizona is seeking qualified firms to provide On-Call Water Resources Engineering Services on a county-wide, as-needed basis through a competitive solicitation. The scope of work encompasses comprehensive water resources engineering services, including planning, studying, and analyzing watersheds and watercourses using advanced hydrologic and hydraulic engineering methodologies. Specific deliverables include floodplain delineation studies, Letters of Map Revision (LOMRs), flood investigations, dam and levee evaluations, sediment transport and erosion analysis, flood mitigation studies, regional drainage master planning, watershed planning, environmental assessments, stormwater management services, and flood warning systems. The solicitation requires firms to prepare design concept reports, feasibility studies, alternatives analyses, plans, specifications, and cost estimates for drainage and flood control infrastructure. Evaluation criteria will focus on experience and qualifications of key personnel (40 points), familiarity with municipal and government standards (35 points), and conflict of interest management (25 points). Key dates include a questions deadline of December 8, 2025, at 4:00 p.m. Arizona time, and proposal submissions due December 19, 2025, at 3:30 p.m., with an anticipated contract award in March 2025 and contract commencement in March 2026.

The county encourages participation from minority contractors, including Disadvantaged Business Enterprises (DBE), Minority Business Enterprises (MBE), and Women-owned Business Enterprises (WBE). The contract will have an initial one-year term with options to extend for up to four additional one-year terms, potentially creating a maximum five-year contract duration. While the specific award value is not explicitly stated, the solicitation indicates the county anticipates making multiple awards but reserves the right to award to a single contractor. Proposals must be submitted through the Pinal County Bonfire portal, with a maximum file upload size of 1000MB, and must include a one-page cover letter, six pages addressing evaluation criteria, and two-page resumes for key personnel. The contract will require comprehensive insurance coverage, including Commercial General Liability, Automobile Liability, Workers' Compensation, and Professional Errors and Omissions Liability. Contractors must maintain SAM.gov registration and comply with federal, state, and local regulations, including provisions for federal grant-funded projects.