1824TK - 2324TK OPERATOR’S MANUAL 1/24/12 Page 17 of 20
DETERMINE LOCATION OF UNDERGROUND UTILITIES
OSHA CFR 29 1926.651 requires that the estimated location of underground utilities be determined
before beginning excavation or an underground drilling operation. When the actual excavation or
bore approaches an estimated utility location, the exact location of the underground installation must
be determined by a safe, acceptable and dependable method. If any utility cannot be precisely
located, the appropriate utility company must shut it off.
Call before you dig.
If you do not call, you may cause an accident; suffer injuries or death; cause
interruption of services; damage the environment; and/or incur project delays. Expect to be held
liable for any damages caused, if you fail to call.
DANGER
: Buried electric cables or gas lines can cause serious injury or death if struck with
dig chain. Always determine location of utilities before trenching.
WARNING
: Fiber optic cables convey laser light that can injure your eyesight.
To locate utilities before trenching call 811 or 1-888-258-0808 (US. or Canada). This free service
will provide a “One-Call” number for the geographic area that you select. Before you start any
digging project, be sure to call the local One-Call system in your area and any utility company that
does not subscribe to the One-Call system. The One-Call representative will notify participating
utility companies of your proposed digging activities. Utilities will then mark their underground
facilities by using the following international marking codes:
Red
Electric
Yellow
Gas, oil, or petroleum
Orange
Communication, telephone, television
Blue
Potable water
Green/brown Sewer
White
Proposed excavation
Pink
Surveying
For areas not represented by One-Call Systems International, contact the appropriate utility
companies to locate and mark the underground installations. Do not rely on visual evidence of
underground utilities such as manhole covers or electrical drop boxes…
CALL!
