DOH Logo

Water System Statistics

Group A and Group B Water Systems

Active Number of Washington State Group A and Group B Public Water Systems

Public Water Systems by Type:

Number

Total

Community

2,219

 

Nontransient noncommunity (NTNC)

322

 

Transient noncommunity (TNC)

1,576

 

Total Group A Water Systems

 

4,117

Total Group B Water Systems

 

13,390

Total Group A and Group B Water Systems

 

17,355