The owner asks for a documented basis: how far from the excavation edge should spoil be kept unless retained?
Correct Answer
A) At least 2 ft
At least 2 ft is the controlling requirement.651(j)(2). Other choices: the distractors are related-looking contract or field terms, but they do not match the cited requirement for review item 270.
Why This Is the Correct Answer
At least 2 ft is the controlling requirement.651(j)(2).
Why the Other Options Are Wrong
Option B: 6 in.; without satisfying the required project control
In general project requirements, 6 in.; without satisfying the required project control is the wrong selection for Spoil setback: 6 in.; without satisfying the required project control is a different published number than the cited Spoil setback value; 29 CFR 1926.651(j)(2) supports At least 2 ft.
Option C: 12 in.
The trap in C is 12 in. That selection is wrong because 12 in. is a different published number than the cited Spoil setback value; 29 CFR 1926.651(j)(2) supports At least 2 ft; Spoil piles and materials are kept at least 2 ft from excavation edges unless otherwise retained.
Option D: 4 ft
Choice D gives 4 ft. Its specific error: 4 ft is a different published number than the cited Spoil setback value; 29 CFR 1926.651(j)(2) supports At least 2 ft. The accepted answer is At least 2 ft.
Memory Technique
Use a warning sign memory cue for spoil setback: the stem's condition unlocks At least 2 ft.
Reference Hint
Open 29 CFR 1926 OSHA Construction Standards; use 29 CFR 1926.651(j)(2) to confirm that At least 2 ft is the controlling requirement.651(j)(2).
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