| Date of Status Change | Record Sequence | Active or Inactive | Primary Source | PWS Type | Population | PWS Name | 
| Current Status 06/29/2022 | 10 | A | GW | C | 74 | WAPATO MOORAGE ASSOCIATION | 
| 06/29/2022 | 9 | A | GW | C | 74 | WAPATO MOORAGE ASSOCIATION | 
| 12/03/2020 | 8 | A | GW | C | 74 | WAPATO MOORAGE ASSOCIATION | 
| 12/07/2018 | 7 | A | GW | C | 74 | CASSELMANS WHARF | 
| 07/21/2011 | 6 | A | GW | C | 80 | CASSELMANS WHARF | 
| 02/14/2008 | 5 | A | GW | C | 80 | CASSELMANS WHARF | 
| 02/13/2008 | 4 | A | GW | C | 80 | CASSELMAN'S WHARF | 
| 02/04/2008 | 3 | A | GW | NP | 80 | CASSELMAN'S WHARF | 
| 02/04/2008 | 2 | A | NP | 80 | CASSELMAN'S WHARF | |
| 01/31/2008 | 1 | A | NP | 0 | CASSELMAN'S WHARF | 
| Population Type | Avg Daily Population | Start Month | Start Day | End Month | End Day | Effective Begin Date | Effective End Date | 
| Residential | 74 | 1 | 1 | 12 | 31 | 04/21/2011 | |
| Residential | 80 | 1 | 1 | 12 | 31 | 01/31/2008 | 04/20/2011 |