Odor Control Systems

Odor control systems at two tarp shafts and decommissioning of the Thornton Transitional Reservoir, CSA. Installation of concrete tunnel plugs at the east and west ends of a section of the Thorn Creek Diversion Tunnel (Diversion Tunnel); installation of mass concrete fill east of the east tunnel plug; tunnel lining and contact grouting in the Diversion Tunnel from approximately Station 135+86.40 to Station 136+33 (Contract 77-235-BF stationing); removal of the rock plug in the upper Thorn Creek Connection Tunnel (Connection Tunnel); tunnel lining and contact grouting in the Connection Tunnel from approximately Station 2+07 to Station 0+00 (Sta. 135+86.40 in Contract 77-235-BF); and removal of concrete and metal components, loose rock, sediment, and vegetation at the Thornton Transitional Reservoir (TTR) Diversion Tunnel Portal, within the Diversion and Dewatering Tunnels, and within the TTR. Also within the TTR, removal of the existing concrete haul tunnel plug. Work also includes demolition inside the cone valve dewatering chamber, including the removal of four 42” diameter knife gate valves, two 42” cone valves and spool pieces, and the hydraulic power unit and its appurtenances, along with removal of all conduits, cables and other live utilities from the control room (elevation +27.5) to the valve chamber (elevation -252.3); sealing a 42” dewatering pipe with a DIP blind flange and replacing a cone valve with a 42” DIP pipe; The Dewatering Chamber and Valve Shaft shall be sealed shut at the access point in the control building; installation of backflow preventer on the 42” dewatering outlet pipe inside the Construction Shaft; removal of two electrical cabinets along Vincennes Road; removal of existing swing gate at northwest corner of the Thornton Composite Reservoir (TCR) and replacement with new chain link fencing and posts; Repairs to rockfall netting at approximately nine (9) locations along the TCR north highwall access ramp; Removal of rock and sediment debris at the bubbler intake adjacent to toe of TCR north highwall; Installation of reservoir level measurement equipment at the TCR; Work at the 30-ft diameter TCR Construction Shaft includes concrete liner repairs; Work at the TCR construction Shaft and Gate Shaft includes installation of the 13,500 CFM odor control systems for the Construction and Gate Shafts including carbon filters, in-line fans with 25 HP motors, and associated ductwork between carbon filters and shaft covers; Installation of stainless steel covers, with safety air pressure relief dampers, above the 63-ft diameter gate shaft and the 30-ft diameter construction shaft; Construction of concrete pads for odor control equipment; Furnishing and installing conduit, cable, starters, breakers, etc. and tie-in to the existing electrical distribution system and tie-ins to the existing control architecture for the odor control system.

Water Treatment Plant, Renovation.

Division 02 -	Existing Conditions, 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.
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, Safety Specialties, Lockers, 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.
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, Exterior Lighting.
Division 27 -	Communications, Data Communications, Audio-Video Communications.
Division 28 -	Electronic Safety and Security, Electronic Access Control and Intrusion Detection, Video Surveillance, Fire Detection and Alarm.
Division 31 -	Earthwork, Site Clearing, Grading, Earthwork Methods.
Division 32 -	Exterior Improvements, Flexible 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, Odor Treatment Equipment, Water Pollution Control Equipment, Water Pollution Containment and Cleanup 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.