3 ms·

I see a lot that say "USA". Always curious what that means. Presumably not United States of America. (this is in California)

• deleted 8y ago
  [deleted]
• lwf 8y ago
  It indicates that the markings were made by Underground Service Alert, the entity that's on the other side of 811. c.f. https://en.wikipedia.org/wiki/Underground_Service_Alert https://en.wikipedia.org/wiki/Underground_Service_Alert
  • Ibethewalrus 8y ago
    Thanks!
  • robbrown451 8y ago
    Awesome. Thanks.