WPCF Digester Rehabilitation

The proposed improvements consist primary of the following: All required labor, supervision and materials to render complete and fully functional electrical, mechanical, and SCADA systems. Full time superintendence. Installation and maintenance of erosion control measures, site clearing and grading. Site restoration and maintenance through acceptance and re-establishment of vegetation. Excavation necessary to perform the rehabilitation of digesters and air supply mains. Removal of existing blower equipment, piping, and all appurtenances. Removal, relocation, or installation of certain site utilities as outlined within the plans. Rehabilitation of the existing offline aerobic digester, including the installation of coarse air diffusers and a flat panel digester cover, and renovations to the treatment compartments. This includes all related miscellaneous equipment and materials to render complete and functional systems. Installation of new HVAC equipment for the rehabilitated digesters. Rehabilitation of the existing online aerobic digester, including the installation of coarse air diffusers and renovations to the treatment compartments. This includes all related miscellaneous equipment and materials to render complete and functional systems. Installation of new blowers and appurtenances for aerobic digestion within the tertiary filter building. Installation of 16-inch air main from tertiary filter building to each of the digesters. Demo and reinstallation of an existing blower. Site restoration and maintenance through acceptance and re-establishment of vegetation. Removal and replacement of the existing sludge conveyors, and replacement with a new sludge pump and appurtenances. Testing of systems and training of operations personnel. Preparation and submission of operations and maintenance manuals. Warranties as specified in the Contract Documents.

Division 02 -	Existing Conditions, Subsurface Investigation, Geotechnical Investigations, Subsurface Drilling and Sampling.
Division 03 -	Concrete, Concrete Reinforcing, Cast-in-Place 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, Weather Barriers.
Division 08 -	Openings, Doors and Frames, Windows, Hardware, Glazing.
Division 09 -	Finishes, Flooring, Painting and Coating.
Division 10 -	Specialties, Signage, Compartments and Cubicles, Safety Specialties, Emergency Aid Specialties, Fire Protection Specialties, Lockers, Storage Assemblies, Flagpoles.
Division 11 -	Equipment, Laboratory Equipment.
Division 12 -	Furnishings.
Division 13 -	Special Construction.
Division 14 -	Conveying Equipment, Lifts.
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, Air Terminal Units.
Division 26 -	Electrical, Instrumentation and Control for Electrical Systems, Power Distribution Units, Lighting, Interior Lighting, Emergency Lighting, Exit Signs, Exterior Lighting.
Division 27 -	Communications, Structured Cabling, Data Communications, Voice Communications, Audio-Video Communications, Distributed Audio-Video Communications Systems.
Division 28 -	Electronic Safety and Security, Electronic Access Control and Intrusion Detection, Access Control, Intrusion Detection, Electronic Surveillance, Video Surveillance, Electronic Detection and Alarm, Fire Detection and Alarm.
Division 31 -	Earthwork, Site Clearing, Grading, Earthwork Methods.
Division 32 -	Exterior Improvements, Flexible Paving, Rigid Paving, Curbs, Gutters, Sidewalks, and Driveways, Fences and Gates, Irrigation, Planting, Turf and Grasses.
Division 33 -	Utilities, Water Utilities, Water Utility Distribution Piping, Water Utility Distribution Equipment, Disinfecting of Water Utility Distribution, Water Utility Storage Tanks, Wastewater Utility Pumping Stations, Storm Drainage Utilities, Electrical Utilities, Communications Utilities.
Division 40 -	Process Integration, Water Process Piping, Instrumentation and Control for Process Systems.
Division 41 -	Material Processing and Handling Equipment, Bulk Material Processing Equipment, Bulk Material Conveying Equipment, Bulk Material Feeders, Conveyors, Cranes and Hoists.
Division 44 -	Pollution and Waste Control Equipment, Common Work Results for Pollution and Waste Control Equipment, Air Pollution Control, Noise Pollution Control, Odor Control, Odor Treatment Equipment, Water Pollution Control Equipment, Water Pollution Containment and Cleanup 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.
Division 46 -	Water and Wastewater Equipment, Common Work Results for Water and Wastewater Equipment, Water and Wastewater Preliminary Treatment Equipment, Water and Wastewater Chemical Feed Equipment, Water and Wastewater Clarification and Mixing Equipment, Water and Wastewater Secondary Treatment Equipment, Water and Wastewater Advanced Treatment Equipment, Water and Wastewater Residuals Handling and Treatment.