C9810 SMALL STRUCTURES; C9980 DEMOLITION; C9801 BUILDING CONSTRUCTION; C5100 CONCRETE STRUCTURE;
C9602 BOTTOM DUMP TRUCKING; C9774 TRUCKER;
C9609 STREET SWEEPING TRUCK;
E4210 TRUCKING & COURIER SERVICES, EX. AIR;
D3430 PLUMBING & HEATING, EXCEPT ELECTRIC;
E4940 WATER SUPPLY; E4952 SEWERAGE SYSTEMS; C8710 ENGINEERING; C8765 DRAFTING; E4970 IRRIGATION S