Oakhurst Collection And WWTP SCADA Modernization Project

The Oakhurst Collection and WWTP SCADA Modernization Project is a solicitation issued by Madera County Maintenance District 22A for the modernization of the SCADA system serving Oakhurst Collection System Lift Stations and the Wastewater Treatment Plant. The project scope involves replacing programmable logic controllers, I/O cards, radios, power supplies, and a SCADA workstation, along with the necessary software and programming to integrate remote PLCs into a single functional system. The engineer's estimate for the project is 456,000 dollars, with a required completion timeframe of 180 working days. Bidders must hold either a Class A General Engineering Contractor License or a Class C-10 Electrical Contractor License and provide proof of Core or Gold Certification in Ignition software by Inductive Automation. The contract will be awarded to the lowest responsive and responsible bidder. Submission requirements include a signed Bidder's Proposal, a detailed Bid Schedule, and bid security equal to 10 percent of the base bid. Successful contractors must provide performance and payment bonds each equal to 100 percent of the contract price. Technical requirements emphasize cybersecurity hardening per ISA/IEC 62443 and strict adherence to manufacturer recommendations for the packaging, storage, and labeling of equipment. Performance will be verified through factory and field acceptance testing, including specific attenuation tests for fiber optics and signal strength testing for wireless systems. Final payment is contingent upon the County's acceptance of work and the submission of a release of claims.