| Date of Status Change | Active or Inactive | Primary Source | PWS Type | Population | PWS Name | 
| Current Status 05/20/2020 | A | GW | C | 1,830 | MILL CITY WATER DEPARTMENT | 
| 05/20/2020 | A | GW | C | 1,640 | MILL CITY WATER DEPARTMENT | 
| 05/04/2009 | A | GW | C | 1,800 | MILL CITY WATER DEPARTMENT | 
| 01/24/2006 | A | SW | C | 1,800 | MILL CITY WATER DEPARTMENT | 
| 12/12/2005 | A | SW | C | 1,800 | MILL CITY WATER DEPARTMENT | 
| Population Type | Avg Daily Population | Start Month | Start Day | End Month | End Day | Effective Begin Date | Effective End Date | 
| Residential | 1830 | 1 | 1 | 12 | 31 | 04/03/2020 | |
| Residential | 1640 | 1 | 1 | 12 | 31 | 12/04/2008 | 04/02/2020 | 
| Residential | 1800 | 1 | 1 | 12 | 31 | First Record | 12/03/2008 |