The City of Windsor, ENWIN Utilities, the Windsor Utilities Commission, and other local utilities use the American Public Works Association Uniform Colour Code (ANSI Standard Z53.1).  Markings locating underground infrastructure are identified as follows:

• Red - Electric power lines, cables and conduit systems and lighting cables
• Yellow - Gas, oil, steam, petroleum,gaseous or dangerous materials
• Orange - Communications, cable television, alarm or signal lines, cables or conduit systems
• Blue - Water, irrigation and slurry lines
• Green - Sewer and drain lines
• White - Route of proposed subsurface line or location of proposed excavation
• Purple – Reclaimed water
• Pink (fluorescent) - Temporary construction project site survey markings and survey monuments.

To obtain utility locates, please visit Ontario One Call or dial the hotline at 1-800-400-2255.

Engineering & Corporate Projects
350 City Hall Square West, 3rd Floor
P. O. Box 1607
Windsor, Ontario
Canada
N9A 6S1

Office hours are 8:30 a.m. to 4:30 p.m.

Phone:  For general information, call 311.  For detailed inquires, call the Manager of Right-of-Way at 519-255-6257
Fax:    519-255-9847
Email:  engineeringdept@city.windsor.on.ca