SafetyQuestion 357 of 690
Before excavation begins, a contractor is required to determine the location of underground utility lines. The contractor should:
a.Contact the regional underground service alert ("call before you dig") at least two working days in advance
b.Dig first and stop if a line is struck
c.Rely only on memory of past projects in the area
d.Skip this step if the trench is shallow
Explanation
California law requires excavators to notify the regional notification center (USA / 811) at least two working days before excavating so utilities can be marked, preventing strikes that cause injury and service disruption.
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