Subcontractor Lead: Irvine Ranch Water District OPA-1 PFAS Water Treatment System, Orange, CA

The work includes but is not limited to the following: The Irvine Ranch Water District (IRWD) Well OPA-1 PFAS Water Treatment Plant project, IRWD-2021-1, generally consists of the following major components: Remove Well Pump and perform brushing, bailing and video existing well casing; perform well pump modifications; properly store pump materials to prevent damage; and reinstall well pump. Well brushing, bailing, and video work shall be the first order of work completed after mobilization and prior to any other site demolition or construction. Demolition of existing residential building and features, including removal of lead and asbestos containing materials. Furnish and install necessary piping, valves, filter vessels, and other appurtenances to assure a functioning system. Furnish and install water treatment plant structural concrete. Take delivery of and install District furnished Dual Media Pressure Vessel PFAS water treatment systems at IRWD’s OPA-1 well site including pressure testing, disinfection, and bacteria testing. Furnish and install prefilter systems for IX systems including filter media. Coordinate delivery of and install District furnished Ion Exchange (IX) resin into Dual Media Pressure Vessels. Resin will be installed by Resin supplier. Contractor shall be onsite and available to assist Resin supplier. Connect the water treatment systems to the existing well and distribution systems: furnish and install epoxy lined and coated and cement mortar lined and coated pipelines from the wells to the water treatment systems and from the water treatment systems to the distribution system points of connection. Complete all paving and site improvements including, but not limited to: earthwork, grading, concrete paving, asphalt paving, CMU wall, motorized rolling gate, driveway apron, and drainage at the OPA-1 well site. Electrical and Instrumentation: furnish and install and/or modify electrical and instrumentation equipment and facilities at the well site for the new water treatment systems and pumps. Instrumentation and control systems shall be integrated with the existing SCADA system. Provide all commissioning and start-up-services. Provide area landscaping.