|Type:||Number of Systems||Population Served|
|Nontransient noncommunity (NTNC)||318||674|
|Transient noncommunity (TNC)||1,577||5,776|
|Total Group A Water Systems||4,105||6,285,337|
|Total Group B Water Systems||13,411||111,004|
|Total Group A and Group B Water Systems||17,523||6,407,351|
Data For Download
These files contain public water system general and source information for Washington State Group A and Group B water systems.
- Group A general data (Excel, 5 MB)
- Group B general data (Excel, 5 MB)
- Group A source data (Excel, 4.8 MB)
- Group B source data (Excel, 4.8 MB)
- Key to data in files
Public Disclosure Statement
The information provided in this website is believed to be accurate and reliable. However, the Washington State Department of Health (DOH) assumes no responsibility for errors in the content of the information provided. Further, DOH assumes no responsibility for the use of the information provided. Information provided is considered public information and may be distributed or copied.