Industry Glossary
Key terms for office trailer support equipment, site logistics, and compliance.
C
Cam-Lock Fitting
Quick-connect coupling for water and waste hoses. Allows tool-free connection. Standard on Water Box and Waste Box discharge ports.
Complete Box
Combined fresh water supply (330 gal) and waste holding (330 gal) in a single towable trailer. Eliminates need for site plumbing.
Containment Berm
Portable secondary containment system for generators and fuel tanks. EPA SPCC compliant. Catches fuel spills and prevents ground contamination.
D
Daisy-Chain
Connecting multiple Water Boxes or Waste Boxes in series to increase capacity. Standard feature on all Water and Waste Box units.
E
EPA SPCC
Environmental Protection Agency Spill Prevention, Control, and Countermeasure regulations. Requires secondary containment for fuel and oil storage above certain thresholds.
G
Generator Sizing
Matching generator output (kW) to site electrical load. Single office trailers typically need 20-25 kW; multi-trailer sites need 30-40 kW; full compounds need 50+ kW.
Gray Water
Wastewater from sinks, showers, and non-toilet drains. Held in onboard tanks and pumped during service visits.
I
IBC Tote
Intermediate Bulk Container. 275-330 gallon tank in a metal cage, used in Water Box and Complete Box configurations.
O
OSHA 29 CFR 1926.51
Occupational Safety and Health Administration regulation covering sanitation requirements on construction sites including hand washing, restroom, and shower access.
P
PTZ Camera
Pan-Tilt-Zoom camera. Used on solar surveillance trailers for adjustable, wide-coverage site monitoring.
Pump-Out
Emptying waste holding tanks using a vacuum truck. Included in regular service visits.
S
Shore Power
External electrical power supplied to trailer equipment from a building, power distribution panel, or generator.
Sound-Attenuated
Generator enclosure designed to reduce noise output for site compliance and worker comfort.
T
TAG4
Four-station portable hand washing unit with hot/cold water, foot pumps, and integrated soap/towel dispensers.
W
Waste Box
Self-contained 660-gallon waste holding tank on a towable trailer. 12V transfer pump with 3-inch cam-lock fittings.
Water Box
Self-contained 660-gallon fresh water supply on a towable trailer. 12V demand pump with battery backup and garden hose connection.
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