Oakhurst Collection and Waste‑Water‑Treatment‑Plant (WWTP) SCADA Modernization Project

The County of Madera is seeking a qualified contractor to modernize the SCADA system that controls the MD‑22A Oakhurst wastewater collection system and WWTP. The scope includes replacing PLCs, I/O modules, radios, power supplies, control hardware, and operator workstations; supplying new Ignition SCADA software; migrating existing programming; integrating remote stations; and completing all testing and startup activities. The project is budget‑referenced at the Engineer’s estimate of $456,000 and requires a 180‑working‑day schedule, with mandatory pre‑bid site visit and a comprehensive set of required bonding, insurance, licensing, and prevailing‑wage compliance. • Replace legacy PLCs (MicroLogix, SLC 5/05) with CompactLogix/ControlLogix platforms. • Install new Ignition SCADA software, workstations, and radio communication equipment. • Provide full commissioning, testing (UFT, SIT, ORT, FDT, SAT) and training for operations staff. • Submit a lump‑sum bid with a 10 % bid bond, performance and payment bonds equal to 100 % of the contract price, and meet Class A/​C‑10 licensing requirements.