A contractor discovers underground storage tanks during excavation for a commercial foundation in North Carolina. What is the required first step under NC environmental regulations?
Correct Answer
C) Immediately stop work and notify the NC Department of Environmental Quality
NC environmental regulations require immediate work stoppage and notification of the NC Department of Environmental Quality when underground storage tanks are discovered.
Why This Is the Correct Answer
North Carolina environmental regulations require an immediate work stoppage and notification to the NC Department of Environmental Quality (DEQ) upon discovery of underground storage tanks. USTs may contain hazardous substances, and any disturbance without regulatory oversight could cause contamination, create liability, and endanger workers. The DEQ must assess the situation before work can resume.
Why the Other Options Are Wrong
Option A: Cover the tanks and proceed with construction
Covering the tanks and proceeding with construction is incorrect and dangerous. Concealing discovered USTs violates environmental law, can create severe contamination liability, and puts workers and the public at risk. This choice also fails to fulfill the mandatory reporting obligation.
Option B: Continue work and report after project completion
Continuing work and reporting after project completion is incorrect. Delayed reporting after project completion would be a serious violation of NC environmental law. USTs must be reported immediately upon discovery — waiting until the project ends could result in criminal and civil liability for contamination.
Option D: Remove the tanks and dispose of them in regular waste
Removing the tanks and disposing of them in regular waste is incorrect and illegal. USTs and their contents are classified as hazardous materials. Unauthorized removal and disposal in regular waste violates federal and state environmental regulations and can result in major fines and criminal charges.
Memory Technique
UST = Unexpected Stop Time. When you find underground storage tanks, the first thing you do is STOP and CALL (NC DEQ). Think: Stop Everything, Call DEQ — SEC. Never cover, never continue, never self-remove.
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