Complete list of ‘before you dig’ phone numbers

The American Society of Plumbing Engineers has compiled this complete list of phone numbers for each state.

By Consulting Specifying Engineer Staff May 9, 2008

A complete resource of “ before you dig ” phone numbers was compiled by the American Society of Plumbing Engineers chapters vice presidents, who collected the numbers for the use of its members. Numbers are provided for each state in the United States and some provinces in Canada.