Prepare - 30 1330 Operator’s Manual
Classify Jobsite
CMW
Classify Jobsite
Inspect Jobsite
• Follow U.S. Department of Labor regulations on excavating and trenching (Part 1926, Subpart P) and
other similar regulations.
• Contact your local One-Call (811 in USA) or the One-Call referral number (888-258-0808 in USA and
Canada) to have underground utilities located before digging. Also contact any utilities that do not
participate in the One-Call service.
• Inspect jobsite and perimeter for evidence of underground hazards, such as:
– “buried utility” notices
– utility facilities without overhead lines
– gas or water meters
– junction boxes
– drop boxes
– light poles
– manhole covers
– sunken ground
• Have an experienced locating equipment operator sweep area within 20 feet (6 m) to each side of
trench path. Verify previously marked line and cable locations.
• Mark location of all buried utilities and obstructions.
• Classify jobsite.
Select a Classification
Jobsites are classified according to underground hazards present.
If working . . . then classify jobsite as . . .
within 10 ft (3 m) of a buried electric line electric
within 10 ft (3 m) of a natural gas line natural gas
in sand or granite which is capable of producing crystalline silica
(quartz) dust
crystalline silica (quartz) dust
within 10 ft (3 m) of any other hazard other
NOTICE: If you have any doubt about jobsite classification, or if jobsite might contain unmarked
hazards, take steps outlined previously to identify hazards and classify jobsite before working.
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