Furnish all labor and materials necessary to construct an 4.6 mgd reverse osmosis (RO) water treatment plant expansion of County’s existing Tropical Farms water treatment facility, including the following: soil preparation; site clearing and grading, paving, and drainage; yard piping; landscaping restoration; construction of RO process building expansion including plumbing, HVAC, electrical, etc. to house additional 4.6 mgd of treatment capacity.; RO process equipment for a 4.6 mgd treatment capacity RO plant, including two (2) 2.3 mgd capacity RO trains; raw water and pretreatment equipment; chemical systems including pumps, tanks, piping, and controls for sulfuric acid, scale inhibiter, chlorine, caustic, and ammonia systems; cleaning system piping improvements; post-treatment system including degasifier, blowers, and scrubber system, concrete clearwell improvements, and transfer pumps; modifications of existing chemical systems and scrubber system; high service pump additions; valves; piping; instrumentation; electrical and SCADA system equipment; painting and coatings; new 3.0-MG ground storage tank and related appurtenances and all accessory items to provide a complete operating system as depicted in the project documents.