| Date of Status Change |
Active or Inactive |
Primary Source |
PWS Type |
Population | PWS Name |
| Current Status 01/31/2024 | A | SW | C | 666,200 | PORTLAND WATER BUREAU |
| 01/31/2024 | A | SW | C | 614,059 | PORTLAND WATER BUREAU |
| 03/09/2018 | A | SW | C | 585,000 | PORTLAND WATER BUREAU |
| 03/09/2015 | A | SW | C | 564,600 | PORTLAND WATER BUREAU |
| 01/19/2012 | A | SW | C | 539,200 | PORTLAND WATER BUREAU |
| 03/11/2009 | A | SW | C | 539,200 | PORTLAND BUREAU OF WATER WORKS |
| 09/19/2006 | A | SW | C | 482,500 | PORTLAND BUREAU OF WATER WORKS |
| 02/04/2005 | A | SW | C | 456,000 | PORTLAND BUREAU OF WATER WORKS |
| Population Type |
Avg Daily Population |
Start Month |
Start Day |
End Month |
End Day |
Effective Begin Date |
Effective End Date |
| Residential | 666200 | 1 | 1 | 12 | 31 | 12/13/2023 | |
| Residential | 614059 | 1 | 1 | 12 | 31 | 11/16/2017 | 12/12/2023 |
| Residential | 585000 | 1 | 1 | 12 | 31 | 06/08/2014 | 11/15/2017 |
| Residential | 564600 | 1 | 1 | 12 | 31 | 01/01/2012 | 06/07/2014 |
| Residential | 539200 | 1 | 1 | 12 | 31 | 11/08/2007 | 12/31/2011 |
| Residential | 539200 | 1 | 1 | 12 | 31 | 09/19/2006 | 11/07/2007 |
| Residential | 482500 | 1 | 1 | 12 | 31 | 09/21/2004 | 09/18/2006 |
| Residential | 456000 | 1 | 1 | 12 | 31 | First Record | 09/20/2004 |