Oklahoma One-Call System, Inc. (CALL OKIE) is a non-profit corporation, incorporated in the State of Oklahoma in 1979. Call Okie is a valuable tool used in preventing damages to public services. It is a communication link between the excavators and operators of underground facilities.

Call Okie is a safety and damage prevention program designed to promote public awareness and to eliminate potential hazards posed to excavators, general public, vital underground facilities and the environment, whenever excavation is done.

Location of member underground facilities will be marked with paint, flags and/or stakes, according to American Public Works Association (APWA) color codes. The approximate location of underground facilities is defined as a strip of land two feet on either side of the underground facility.
At the job site, be sure to "white line" or indicate the approximate area to be included in the excavation to provide locators an accurate understanding of the proposed excavation to eliminate unnecessary marking.

Color codes for marking underground utility lines

RED	Electric power lines, cables, conduit and lighting cables
YELLOW	Gas, oil, steam, petroleum or gaseous materials
ORANGE	Communications, alarm or signal lines, cables or conduit
BLUE	Potable Water
GREEN	Sewers and drain lines
WHITE	Proposed excavation limits or route
PINK	Temporary survey markings
PURPLE	Reclaimed water, irrigation and slurry lines

The Excavator's Role:

• Must give notice no more than 10 days nor less than 48 hours, excluding Saturdays, Sundays, and legal holidays, prior to the commencement of the excavation or demolition.
• Must determine the precise location of the underground facilities by hand-dug test holes before using any powered or mechanized equipment.
• Must dig safely and with care once the facilities are located and protected to minimize damage to exposed facilities.
• Must notify operators of underground facilities if precise location cannot be found.
• Must notify operators of underground facilities immediately when any damage occurs to facilities. Excavators must delay backfilling in the damaged area until repairs are made.
  

For more information about CALL OKIE, call Bill Tucker at 375-3705 or visit the CALL OKIE website.