Specifications include, but are not limited to: A. Installation of all work related to the Disinfection Improvements at the Orinda Water Treatment Plant: 1. Demolition of existing Grounds Maintenance Building and Service Building and construction of a new Ultraviolet (UV) Disinfection Facility and Chlorine Contact Basin (CCB) complex which consists of: a. New below-grade 200-mgd low pressure high-output (LPHO) UV disinfection system, b. New below-grade 1.4 MG post-filter CCB and outlet weir structure, c. New two-story Maintenance and UV Electrical Building (MAUVE) located above the UV structure that also houses electrical equipment to support the new UV disinfection system, d. UV system, associated control cabinets, and field services provided by the UV System Supplier, and e. Secant pile shoring system to support construction of the UV, CCB, MAUVE, and pipeline tie-ins, with the deepest point approximately 60 feet below existing grade. 2. Pipeline improvements, consisting of: a. Installation of approximately 230-feet of 108-inch pipe, 110 feet of 78-inch pipe, and 110 feet of 48-inch pipe constructed via open-face trenchless pipe jacking method and installed in four segments. b. Installation of approximately 340-feet of 36-inch pipe. c. Installation of four major water piping connections to: Effluent 1 (48-inch), Effluent 2 (78-inch), Claremont Tunnel (108-inch), and Los Altos Pumping Plant No. 2 (48-inch). 3. Construction of a new Effluent 1 isolation vault. 4. Construction of a Grounds Maintenance Building and associated parking area. 5. Electrical, instrumentation and control improvements, consisting of: a. Procurement and installation of two prefabricated power buildings (Los Altos Pumping Plant Power Building and South Electrical Building) that include medium voltage transformers, medium voltage switchgear, medium voltage motor control centers, cast coil transformers, low voltage switchgear, redundant 48VDC battery systems, standby power low voltage switchgear with step up transformer, protection and automation controls, panelboards, transfer switches, dry type transformers, and lighting and air conditioning. b. Installation of new motor starters and controls upgrades for Los Altos Pumping Plant No. 2. c. Installation of new standby generator, associated fuel tanks, and piping. d. Installation and integration of an expanded fiber communications network for the new and some existing facilities, new control panels, work stations, instrumentation, CCTV system, access control, and fire alarm systems for the new facilities. e. Installation of expanded Honeywell Experion Distributed Control System components for process control.
