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OAR 952-001-0010 (14) “Reasonable
accuracy” means location within twenty-four (24) inches of the outside
dimensions of both sides of an underground facility. Offset marking,
when used. will have the same tolerance of accuracy.

Typical Street Marking

Recommended Practices
- Marks
should indicate the name, initials, or logo of the owner of the underground
facilities. Make your letters clear and concise.
- Indicate
bends, offsets, and/or dead ends. Do not leave the other party guessing.
- Indicate
the width of the facility if it is greater than two (2) inches.
- Accuracy
of offset marking must be made so that original locate makes can be
re-established.
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