3781.29 Marking location of facilities or give notice of no facilities at site.
(A)(1) Except as otherwise provided in division (A)(2) of this section, within forty-eight hours of receiving notice under section 3781.28 of the Revised Code, each utility shall locate and mark the approximate location of its underground utility facilities at the excavation site. If a utility does not mark its underground utility facilities or contact the excavator within forty-eight hours of receiving notice under section 3781.28 of the Revised Code, the utility is deemed to have given notice that it does not have any facilities at the excavation site. If the utility cannot accurately mark the approximate location, the utility shall mark the approximate location to the best of its ability, notify the excavator that the markings may not be accurate, and provide additional guidance to the excavator in locating the facilities as needed during the excavation.
(2) In the case of an interstate hazardous liquids pipeline or an interstate gas pipeline, the owner of the pipeline shall locate and mark the approximate location of its pipeline within the time frame established in the public safety program of the owner.
(B) Unless a facility actually is uncovered or probed by the utility, any indications of the depth of the facility shall be treated as estimates.
(C) A utility shall mark the approximate location of its underground facilities using the following color codes:
Type of Underground Utility Facility Color
Electric power transmission and distribution Safety red
Gas transmission and distribution High visibility Safety yellow
Oil transmission and distribution High visibility Safety yellow
Dangerous materials, product lines, and steam lines High visibility Safety yellow
Telephone and telegraph systems Safety alert orange
Police and fire communications Safety alert orange
Cable television Safety alert orange
Water systems Safety precaution blue
Slurry systems Safety precaution blue
Sewer lines Safety green
(D) Proposed construction or excavation markings shall be made in white.
3781.29 Marking location of facilities or give notice of no facilities at site.
(A)(1) Except as otherwise provided in division (A)(2) of this section, within forty-eight hours of receiving notice under section 3781.28 of the Revised Code, each utility shall locate and mark the approximate location of its underground utility facilities at the excavation site. If a utility does not mark its underground utility facilities or contact the excavator within forty-eight hours of receiving notice under section 3781.28 of the Revised Code, the utility is deemed to have given notice that it does not have any facilities at the excavation site. If the utility cannot accurately mark the approximate location, the utility shall mark the approximate location to the best of its ability, notify the excavator that the markings may not be accurate, and provide additional guidance to the excavator in locating the facilities as needed during the excavation.
(2) In the case of an interstate hazardous liquids pipeline or an interstate gas pipeline, the owner of the pipeline shall locate and mark the approximate location of its pipeline within the time frame established in the public safety program of the owner.
(B) Unless a facility actually is uncovered or probed by the utility, any indications of the depth of the facility shall be treated as estimates.
(C) A utility shall mark the approximate location of its underground facilities using the following color codes:
Type of Underground Utility Facility Color
Electric power transmission and distribution Safety red
Gas transmission and distribution High visibility Safety yellow
Oil transmission and distribution High visibility Safety yellow
Dangerous materials, product lines, and steam lines High visibility Safety yellow
Telephone and telegraph systems Safety alert orange
Police and fire communications Safety alert orange
Cable television Safety alert orange
Water systems Safety precaution blue
Slurry systems Safety precaution blue
Sewer lines Safety green
(D) Proposed construction or excavation markings shall be made in white.
3781.29 Marking location of facilities or give notice of no facilities at site.
(A)(1) Except as otherwise provided in division (A)(2) of this section, within forty-eight hours of receiving notice under section 3781.28 of the Revised Code, each utility shall locate and mark the approximate location of its underground utility facilities at the excavation site. If a utility does not mark its underground utility facilities or contact the excavator within forty-eight hours of receiving notice under section 3781.28 of the Revised Code, the utility is deemed to have given notice that it does not have any facilities at the excavation site. If the utility cannot accurately mark the approximate location, the utility shall mark the approximate location to the best of its ability, notify the excavator that the markings may not be accurate, and provide additional guidance to the excavator in locating the facilities as needed during the excavation.
(2) In the case of an interstate hazardous liquids pipeline or an interstate gas pipeline, the owner of the pipeline shall locate and mark the approximate location of its pipeline within the time frame established in the public safety program of the owner.
(B) Unless a facility actually is uncovered or probed by the utility, any indications of the depth of the facility shall be treated as estimates.
(C) A utility shall mark the approximate location of its underground facilities using the following color codes:
Type of Underground Utility Facility Color
Electric power transmission and distribution Safety red
Gas transmission and distribution High visibility Safety yellow
Oil transmission and distribution High visibility Safety yellow
Dangerous materials, product lines, and steam lines High visibility Safety yellow
Telephone and telegraph systems Safety alert orange
Police and fire communications Safety alert orange
Cable television Safety alert orange
Water systems Safety precaution blue
Slurry systems Safety precaution blue
Sewer lines Safety green
(D) Proposed construction or excavation markings shall be made in white.
