A contractor discovers asbestos-containing materials during renovation of a commercial building in North Carolina. The project involves removing 500 square feet of asbestos floor tiles. What notification requirement applies?
Correct Answer
D) 10-day advance notification to NC DEQ
NC environmental regulations require 10-day advance notification to DEQ for asbestos removal projects exceeding 160 square feet of non-friable materials.
Why This Is the Correct Answer
The correct answer is D (10-day advance notification to NC DEQ). North Carolina environmental regulations implementing the National Emission Standards for Hazardous Air Pollutants (NESHAP) require contractors to notify the NC Department of Environmental Quality (DEQ) at least 10 working days before beginning asbestos demolition or renovation projects that meet threshold quantities. Floor tiles are non-friable materials; the threshold for non-friable materials is 160 square feet, which this 500 sq ft project clearly exceeds.
Why the Other Options Are Wrong
Option A: Notification only if friable materials
Notification only if friable materials is incorrect. NC NESHAP regulations apply to both friable and non-friable asbestos-containing materials once the quantity threshold is exceeded. Floor tiles are non-friable, but at 500 sq ft (well above the 160 sq ft threshold), notification is still required.
Option B: 24-hour emergency notification
24-hour emergency notification is not the standard requirement for planned asbestos removal projects. A 24-hour notification would only apply in genuine emergency demolition situations (e.g., a structure that poses an imminent safety hazard). Planned renovations require the full 10-day advance notice.
Option C: No notification required
No notification required is incorrect. At 500 square feet of asbestos-containing floor tiles, the project far exceeds the 160 square foot threshold for non-friable materials. Notification to NC DEQ is mandatory before work begins.
Memory Technique
Remember '10 days to DEQ' for asbestos — ten fingers, ten days, tell the DEQ. The threshold trigger for non-friable materials is 160 sq ft (think: a 10'×16' room floor). This project at 500 sq ft is clearly above threshold, so the full 10-day notice applies.
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