Environmental Management and Waste Handling
Core Concepts
Environmental management mirrors safety management: identify aspects and impacts, set objectives, control, monitor, and review. An aspect is an element of an activity that interacts with the environment (e.g., solvent use); an impact is the resulting change (e.g., groundwater contamination). Questions test this distinction.
Know the waste hierarchy: prevent, reduce, reuse, recycle, recover, then dispose. Hazardous waste requires identification, segregation, compatible container selection, labelling, accumulation limits, secure storage, and manifesting or tracking to final disposal. Never mix incompatible wastes; mixing can create reactions and can make an entire container hazardous, multiplying cost and risk.
Spill response requires site-specific planning: absorbents, containment, PPE, notification thresholds, and reporting to regulators. Stormwater and drainage protection matters - preventing a spill reaching a drain is often more important than cleanup speed.
Understand permits, discharge limits, air emissions, and the duty to report releases. Also consider legacy issues: contaminated soil, asbestos, and historical disposal sites encountered during construction.
Traps
- Confusing aspect with impact.
- Placing hazardous waste in unlabelled or incompatible containers.
- Assuming small quantities can be disposed of as general refuse.
- Forgetting that a spill reaching a drain may trigger regulatory notification regardless of volume.
Rule of Thumb
Protect the drain first. In a spill, containment at the drainage point prevents a small incident from becoming a reportable environmental release.