Northwest River Water Treatment Plant UV Disinfection Facility

The Work under this project consists of: 1. Demolition of the two existing southern spent cleaning solution tanks and associated support pad and portions of the existing spent cleaning solution containment walls and the tank base slab to permit installation of a new drainpipe and electrical conduits from the new UV Disinfection Building to the existing Membrane/Chemical Building basement. 2. Construction of new concrete walls to enclose the containment area serving the two remaining north spent cleaning solution tanks. 3. Installation of a new UV Disinfection Building including restoration of the existing base slab and a new foundation wall followed by installation of the new prefabricated UV Disinfection Building. 4. Installation of two new UV disinfection reactors and associated stainless steel piping, false floor grating system, HVAC equipment and lighting within the new UV Disinfection Building. 5. Installation of new electrical power/control panels for the new UV reactors in the Membrane/Chemical Building existing electrical room and additional UV control panels in the new UV Disinfection Building. 6. Installation of new elevated outdoor UV influent and effluent piping and associated pipe supports between the new UV Disinfection Building and the modified existing Finished Water Chemical Addition Structure. Prior to starting the modifications described above, reroute the existing water quality sample and drain lines to a Contractor furnished portable enclosure and connect to the new instruments installed in the enclosure and connected to the existing plant control system. 7. Once the new portable enclosure and water quality instruments are operational and approval is given by the City, modifications requiring a plant shutdown can begin within the Finished Water Chemical Addition structure. 8. Following completion of the plant shutdown, the new water quality instruments and associated sample lines shall be relocated to their permanent location within the Finished Water Chemical Addition Structure (one instrument at a time within 1 hour each) and the temporary enclosure shall be removed from the site. 9. Startup and testing of the new UV reactors shall be completed once finished water can be passed through them. The Work under this project consists of: 1. Demolition of the two existing southern spent cleaning solution tanks and associated support pad and portions of the existing spent cleaning solution containment walls and the tank base slab to permit installation of a new drain pipe and electrical conduits from the new UV Disinfection Building to the existing Membrane/Chemical Building basement. 2. Construction of new concrete walls to enclose the containment area serving the two remaining north spent cleaning solution tanks. 3. Installation of a new UV Disinfection Building including restoration of the existing base slab and a new foundation wall followed by installation of the new prefabricated UV Disinfection Building. 4. Installation of two new UV disinfection reactors and associated stainless steel piping, false floor grating system, HVAC equipment and lighting within the new UV Disinfection Building. 5. Installation of new electrical power/control panels for the new UV reactors in the Membrane/Chemical Building existing electrical room and additional UV control panels in the new UV Disinfection Building

Division 02 -	Existing Conditions, Subsurface Investigation.
Division 03 -	Concrete, Precast Concrete.
Division 04 -	Masonry, Unit Masonry.
Division 05 -	Metals, Structural Metal Framing, Metal Fabrications.
Division 06 -	Wood, Plastics, and Composites, Rough Carpentry.
Division 07 -	Thermal and Moisture Protection, Dampproofing and Waterproofing, Thermal Protection.
Division 08 -	Openings, Doors and Frames, Windows, Hardware.
Division 09 -	Finishes, Painting and Coating.
Division 10 -	Specialties, Signage, Compartments and Cubicles, Emergency Aid Specialties, Fire Protection Specialties, Storage Assemblies.
Division 11 -	Equipment, Laboratory Equipment.
Division 14 -	Conveying Equipment.
Division 21 -	Fire Suppression, Fire-Extinguishing Systems.
Division 22 -	Plumbing, Instrumentation and Control for Plumbing, Plumbing Piping, Plumbing Equipment, Plumbing Fixtures.
Division 23 -	Heating, Ventilating, and Air Conditioning (HVAC), Instrumentation and Control for HVAC, HVAC Air Distribution.
Division 26 -	Electrical, Instrumentation and Control for Electrical Systems, Interior Lighting, Emergency Lighting, Exit Signs, Exterior Lighting.
Division 27 -	Communications, Structured Cabling, Data Communications, Voice Communications, Distributed Audio-Video Communications Systems.
Division 28 -	Electronic Safety and Security, Electronic Access Control and Intrusion Detection, Access Control, Intrusion Detection, Electronic Surveillance, Electronic Detection and Alarm.
Division 31 -	Earthwork, Earthwork Methods.
Division 32 -	Exterior Improvements, Flexible Paving, Rigid Paving, Curbs, Gutters, Sidewalks, and Driveways, Fences and Gates, Turf and Grasses.
Division 33 -	Utilities, Water Utilities, Storm Drainage Utilities, Electrical Utilities, Communications Utilities.
Division 44 -	Pollution and Waste Control Equipment, Common Work Results for Pollution and Waste Control Equipment, Air Pollution Control, Noise Pollution Control, Odor Control, Water Pollution Control Equipment, Solid Waste Control and Reuse, Waste Thermal Processing Equipment, Fluidized Bed Combustion Equipment, Rotary Kiln Incinerators, Pyrolysis Equipment, Hazardous Waste and Medical Waste Incinerators, Heat Recovery Equipment for Waste Thermal Processing, Synthesis Gas Cleanup and Handling Equipment.