National Watermain

National Watermain is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Water Main & Works Contractors

North American Industry Classification System (NAICS) Categories:

• Water And Sewer Line And Related Structures Construction > Water & Sewer Installation & Services > Water Main & Works Contractors

Standard Industry Classification (SIC) Categories:

• Constructing Water, Sewer, Power, & Communication Lines And Pipelines > Water & Sewer Installation & Services > Water Main & Works Contractors