Proposed Excavation . Linguee. Common Facility Identifiers. APWA Uniform Color Codes for temporary marking of underground utilities RED – Electric Power Lines, Cables, Conduit, and Lighting Cables YELLOW – Gas, Oil, Steam, Petroleum, or Gaseous Material ORANGE – Communication , Alarm or Signal Lines, Cables, or Conduit BLUE – Potable Water GREEN – Sewers and Drain Lines WHITE – Proposed Excavation Limits or Route Honor all field meeting appointments with excavators. UNIFORM COLOR CODE. APWA is taking YOU to the next level – Certification! Gas, Oil, Steam, Petroleum or Gaseous Materials . It’s a free service to notify Missouri One Call of your planned excavation to help prevent damages that may result in fines, utility service interruption and injury or even death. 2018 Annual Meeting and Golf Tournament. The APWA Color Code the uniform color code for marking excavation sites and underground facilities in conflict with an excavation. The hidden costs of underground utility damage. Below is our breakdown, to help you crack the mystery behind the colors of safety. Henceforth, all proposals from the committee will be referred to as recommendations versus standards . RED - Electric Power Lines, Cables, Conduit and Lighting Cables YELLOW - Gas, Oil, Steam, Petroleum or Gaseous Materials ORANGE Communication, Alarm or Signal Lines, Cables or Conduit BLUE - Potable Water GREEN - Sewers and Drain Lines PURPLE - Reclaimed Water, Irrigation and Slurry Lines. Safe digging is everyone’s responsibility. The American Public Works Association (APWA) recommends the following guidelines be used when marking underground utilities. Spring Street Conference Equipment demos. ADOPT UNIFORM COLOR CODE The American Public Works Association encourages public agencies, utilities, contractors, other associations, manufacturers and all others involved in excavation to adopt the APWA Uniform Color Code, using ANSI standard Z535.1 Safety Colors for temporary marking and facility identification. TYPICAL MARKING. Utility Locator, LLC is a division of Trinity Subsurface Engineering, LLC and specializes in locating underground utilities on private campuses and other properties where most of the underground utilities are privately owned. PINK Temporary Survey Markings. Officials use this code to mark up underground utilities with tape, paint, flags or signs. APWA Color Code. It is used nation-wide, as well as in Australia and India On June 16, 1976 in Palms-Culver, a Westside region of Los Angeles, California, utility workers dug too deep and hit an underground gasoline pipe. APWA® also has a field office located in Washington, D.C. It provides universal understanding of the marking of underground utilities for both construction and engineering projects. –87– Uniform Color Code and Marking Guidelines The information contained in this appendix is intended to supplement information for existing practices found within CGA Best Practices.48/ Uniform Color Code49/ The following APWA uniform color code (ANSI Z535.1) shall be adopted as the APWA Uniform Color Code for Marking Underground Facilities Underground facilities shall be marked in accordance with the following designated color code: White. The APWA Uniform Color Code uses the safety colors in the American National Standards Institute Standard Z53.1. 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