WHS MAIDIQ TMDL 22_066 Tree Box Filters at the Pentagon R217C

Project titled R217C Tree Box Filters as shown on Drawings. The Tree Box Filter Inlets were selected to treat parking lot surface runoff. Seven (7) locations were selected around the Pentagon Reservation. All the new tree boxes are installed upstream of an existing curb inlets or other storm drain structures to maximize the surface runoff, treat the first flush, and safely convey the overflow downstream to the existing storm drain system. There are a total of 25 Tree Box Filter Inlets in these locations, including areas for Executive Visitor/Motorcycle Parking, North Parking, Lower River Parking, Connector Road Parking, Hayes Parking, Fern Parking, and EADS Parking. The Tree Boxes size varies from 7'x 5' to 23'x 9'. Due to potential utility conflicts in some locations, new curb alignments have been designed to provide space for the proposed Tree Box Inlets while avoiding existing infrastructure. Contractor is responsible for protection of all existing utilities and moving and or relocating small conduits around inlets as indicated on drawings. The primary areas of work are: Executive Visitor/Motorcycle Parking, North Secure Parking, Lower River Parking, Connector Road Parking, Hayes Parking, Fern Parking, and EADS Parking. *The value for this project is based on a financial range. The value is listed as the highest possible cost from the range provided by a stakeholder or official project document.

Division 03 -	Concrete, 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, Finish Carpentry, Architectural Woodwork.
Division 07 -	Thermal and Moisture Protection, Dampproofing and Waterproofing, Thermal Insulation, Weather Barriers.
Division 08 -	Openings, Metal Doors and Frames, Wood Doors, Plastic Doors, Specialty Doors and Frames, Entrances and Storefronts, Curtain Wall and Glazed Assemblies, Windows, Hardware.
Division 09 -	Finishes, Plaster and Gypsum Board, Tiling, Acoustical Ceilings, Flooring, Resilient Flooring, Carpeting, Acoustic Treatment, Painting.
Division 10 -	Specialties, Visual Display Units, Signage, Compartments and Cubicles, Toilet Compartments, Partitions, Fire Protection Specialties, Fire Protection Cabinets, Fire Extinguishers, Storage Assemblies, Flagpoles.
Division 12 -	Furnishings, Window Treatments, Casework, Office Furniture, Multiple Seating.
Division 21 -	Fire Suppression, Fire-Suppression Sprinkler Systems.
Division 22 -	Plumbing, Facility Water Distribution, Facility Sanitary Sewerage, Facility Storm Drainage, Plumbing Equipment, Plumbing Fixtures.
Division 23 -	Heating, Ventilating, and Air Conditioning (HVAC), Instrumentation and Control for HVAC, HVAC Piping and Pumps, 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.
Division 28 -	Electronic Safety and Security, Electronic Access Control and Intrusion Detection, Fire Detection and Alarm.
Division 31 -	Earthwork, Site Clearing, Grading, Soil Treatment.
Division 32 -	Exterior Improvements, Bases, Ballasts, and Paving, Flexible Paving, Asphalt Paving, Rigid Paving, Concrete Paving, Curbs, Gutters, Sidewalks, and Driveways, Planting Irrigation, Turf and Grasses.
Division 33 -	Utilities, Water Utilities, Sanitary Sewerage Utilities, Storm Drainage Utilities.