Wastewater Treatment Plant Improvements

The project site is located approximately 8 miles south of the Town of Mesa along Highway 65 at the base of the Powderhorn Resort Ski Area within the Grand Mesa Metropolitan District’s service area at the District’s aerated lagoon wastewater treatment plant. The project generally consists of the following major items: 1. Site preparation, including riprap removal, clearing and grubbing of existing lagoon cells, and necessary shaping or grading to prepare the lagoon surfaces for new synthetic liners. 2. Excavation of approximately 2,200 cubic yards of from the lagoon cells. 3. Placement of approximately 1,400 cubic yards of compacted fill. 4. Site dewatering as necessary. 5. Lagoon Dewatering. 6. Installation of approximately 400-linear feet of 4-inch PVC perforated groundwater collection pipes and concrete sump structures with hydrostatic valves. 7. Installation of approximately 900-linear feet of 4-inch ADS gas vent piping and spun bound geotextile fabric over gas vent piping. 8. Installation of approximately 700-linear feet of new 8-inch SDR 35 PVC yard piping. 9. Installation of three (3) new owner-supplied level control structures. 10. Installation of one (1) new owner-supplied flow control structure. 11. Installation of four (4) new owner supplied standard manholes. 12. Installation of three (3) new owner supplied hydrostatic relief valve structures. 13. Installation of new lagoon inlet piping, distributor and collector piping, and associated appurtenances, placement and shaping of liner subgrade, including the application of pre-emergent herbicide over lagoon surfaces. 14. Installation of approximately 6,000 square yards of either 60 mil HDPE synthetic liner or 45 mil Reinforced Polypropylene 15. Installation of two (2) owner-supplied floating baffle curtains. 16. Installation of 290-linear feet of new 6-inch HDPE blower manifold piping with vertical risers and fittings. 17. Installation of a new owner-supplied insulated floating cover system. 18. Site restoration, including gravel surfacing as necessary.

Sewage Treatment Plant, New Construction.

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.