EPA EXPORT · 13 SEP 2026FEDERAL COMPLIANCE RECORDS · NOT A HOME WATER TEST
TAP WATERLEDGERPublic system compliance records

COUNTY WATER-SYSTEM LEDGER

Thurston, Washington

Compare active community water systems serving this county in EPA's public export. Systems can serve multiple places, so population totals may overlap.

Systems11active CWS · pop. 2,500+
Population served329,758reported total; may overlap
Current violation flag9.1%1 systems
Serious-violator flag0.0%0 systems

01 / SYSTEMS

Water systems serving Thurston

Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.

Water systemPopulation servedPrimary sourceCurrent export status
Olympia City OfWA5363450126,966Ground waterNo current violation flagged
Lacey Water DepartmentWA5343500105,178Ground waterNo current violation flagged
Tumwater City OfWA538970051,802Ground waterNo current violation flagged
Yelm City OfWA539935017,355Ground waterNo current violation flagged
Tanglewilde Thompson Place 600WA53043977,900Ground waterNo current violation flagged
Pattison 500WA53665784,643Ground waterNo current violation flagged
Grand MoundWA53071583,764Ground waterNo current violation flagged
Tenino City ofWA53874003,336Ground waterNo current violation flagged
Meadows 690WA53877843,100Ground waterNo current violation flagged
ClearwoodWA53136152,956Ground waterNo current violation flagged
Rainier Water DepartmentWA53709802,758Ground waterOther current violation flag

02 / SOURCE MIX

Ground water11 systems · 329,758 served
How to read the population total

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.