RFQ/RFP No. 26‑0009‑ENG – MD‑1 Hidden Lakes Surface Water Treatment Plant

The County of Madera is seeking a qualified engineering firm to provide full professional services for the design, construction‑support, and commissioning of a new surface‑water treatment plant (MD‑1) serving the Hidden Lakes community. The scope includes project management, existing‑condition review, utility coordination, detailed 90 % and 100 % design packages (plans, specifications, and cost estimates), bid‑support, and construction‑support services through to as‑built documentation. The contract will be awarded on a cost‑plus‑fixed‑fee basis and may last up to three years. • Design and engineering of a 350 gpm (or equivalent) water‑treatment plant, including filtration, disinfection, storage, and back‑wash water disposal. • Preparation of 90 % and 100 % PS&E packages, submittal of plans, specifications, and engineer’s estimates, and response to contractor RFI’s. • Project management, schedule development, monthly invoicing, compliance with California drinking‑water standards, and coordination with County utilities, permitting agencies, and the U.S. Bureau of Reclamation water‑rights contract. • Required deliverables: detailed design documents, construction‑support services, final as‑built drawings, and a fixed‑fee profit component; all work must comply with CEQA, prevailing‑wage, and insurance requirements.