Know What’s Below: Call 811 Before You Dig

NIPSCO-Call-Before-You-DigNational Safe Digging Month is here - a time to remember the importance of calling 811 before starting any digging projects. Did you know that the colors of the paint and flags the 811 locators use indicate what is buried below?

  • Red = Electric
  • Orange = Communications, Telephone/CATV
  • Blue = Potable Water
  • Green = Sewer/Drainage
  • Yellow = Gas/Petroleum Pipe Line
  • Purple = Reclaimed Water
  • White = Premark site of intended excavation


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801 E 86th Ave
Merrillville, IN 46410
Phone: 1-800-464-7726