NM CID GF-1 Practice Questions - New Mexico CID GF-1 Airports Contractor Examination Exam

A sediment basin on a CGP site should withdraw detained water from which location whenever feasible?

The very bottom of the basin so the heaviest sediment is flushed out The surface of the impoundment, using a skimmer or similar surface outlet A mid-depth orifice only, never the surface Any point, because outlet elevation does not affect effluent quality

Correct Answer:

The surface of the impoundment, using a skimmer or similar surface outlet

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