COUNTY WATER-SYSTEM LEDGER
Thurston, Washington
EPA’s September 2026 export lists 11 active community water systems serving Thurston, Washington, with 1 current-violation flags and 0 serious-violator flags among the covered systems.
Source: EPA SDWIS system-search export · Active community systems serving 2,500+ people · Snapshot 13 Sep 2026
01 / SYSTEMS
Water systems serving Thurston, Washington
EPA associates 11 covered systems with Thurston, Washington; their reported population-served values total 329,758 and may overlap.
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| Olympia City OfWA5363450 | 126,966 | Ground water | No current violation flagged |
| Lacey Water DepartmentWA5343500 | 105,178 | Ground water | No current violation flagged |
| Tumwater City OfWA5389700 | 51,802 | Ground water | No current violation flagged |
| Yelm City OfWA5399350 | 17,355 | Ground water | No current violation flagged |
| Tanglewilde Thompson Place 600WA5304397 | 7,900 | Ground water | No current violation flagged |
| Pattison 500WA5366578 | 4,643 | Ground water | No current violation flagged |
| Grand MoundWA5307158 | 3,764 | Ground water | No current violation flagged |
| Tenino City ofWA5387400 | 3,336 | Ground water | No current violation flagged |
| Meadows 690WA5387784 | 3,100 | Ground water | No current violation flagged |
| ClearwoodWA5313615 | 2,956 | Ground water | No current violation flagged |
| Rainier Water DepartmentWA5370980 | 2,758 | Ground water | Other current violation flag |
02 / SOURCE MIX
Primary water sources for Thurston, Washington
EPA classifies 11 systems serving Thurston, Washington across 1 primary-source categories; Ground water is the largest category with 11 systems.
It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.