| Date of Status Change |
Active or Inactive |
Primary Source |
PWS Type |
Population | PWS Name |
| Current Status 03/07/2022 | A | GW | NTNC | 120 | USACE JOHN DAY DAM |
| 03/07/2022 | A | GW | NTNC | 120 | COE JOHN DAY DAM |
| 09/02/2021 | A | GW | NTNC | 120 | COE JOHN DAY DAM |
| 02/17/2015 | A | GW | NTNC | 80 | COE JOHN DAY DAM |
| 02/11/2013 | A | GW | NTNC | 80 | COE DALLES/JD-JOHN DAY DAM |
| 12/29/2004 | A | GW | NTNC | 175 | COE DALLES/JD-JOHN DAY DAM |
| Population Type |
Avg Daily Population |
Start Month |
Start Day |
End Month |
End Day |
Effective Begin Date |
Effective End Date |
| Non-transient | 120 | 1 | 1 | 12 | 31 | 08/06/2014 | |
| Non-transient | 80 | 1 | 1 | 12 | 31 | 09/08/2004 | 08/05/2014 |
| Non-transient | 175 | 1 | 1 | 12 | 31 | First Record | 09/07/2004 |