Cleaning/Restoration Services Parking Lot Maintenance Stormwater Management Products 31 00 00 Earthwork 31 23 00 Excavation and Fill 33 30 00 Sanitary Sewerage 33 40 00 Stormwater Utilities 33 70 00 Electrical Utilities 33 80 00 Communications Utilities 34 71 00 Roadway Construction Division 44 - Pollution and Waste Control Equipment

Building Material Suppliers Chemical Suppliers Equipment Rental and Supply Highway Contractor Mobile/Trailer Offices Parking Lot Maintenance Safety Supplies 02 50 00 Site Remediation 03 01 00 Maintenance of Concrete 03 10 00 Concrete Forming and Accessories 07 10 00 Dampproofing and Waterproofing 07 18 00 Traffic Coatings 07 50 00 Membrane Roofing 10 14 53 Traffic Signage 31 22 00 Grading 31 25 00 Erosion and Sedimentation Controls 32 16 00 Curbs, Gutters, Sidewalks, and Driveways 32 17 00 Paving Specialties 32 18 00 Athletic and Recreational Surfacing 32 30 00 Site Improvements 32 32 00 Retaining Walls 33 16 00 Water Utility Storage Tanks 34 71 00 Roadway Construction Division 35 - Waterway and Marine Construction

32 10 00 Bases, Ballasts, and Paving 32 17 00 Paving Specialties 32 30 00 Site Improvements Parking Lot Maintenance

31 22 00 Grading 32 17 00 Paving Specialties 32 30 00 Site Improvements Design Build Highway Contractor Residential/Multi Family Contractor 32 16 00 Curbs, Gutters, Sidewalks, and Driveways 34 71 00 Roadway Construction Parking Lot Maintenance