NM CID GF-7 Practice Questions - New Mexico CID GF-7 Tanks And Towers Contractor Examination Exam

When should perimeter sediment controls such as silt fence or berms be installed on a new tank or tower site?

After the first significant rain so the drainage pattern is obvious After final grading so the fence is not in the way of earthwork Before major land-disturbing activity so sediment is intercepted from the start of grading Only during the punch-list and final-stabilization phase

Correct Answer:

Before major land-disturbing activity so sediment is intercepted from the start of grading

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