COUNTY WATER-SYSTEM LEDGER
Napa, California
Compare active community water systems serving this county in EPA's public export. Systems can serve multiple places, so population totals may overlap.
Systems5active CWS · pop. 2,500+
Population served120,024reported total; may overlap
Current violation flag60.0%3 systems
Serious-violator flag0.0%0 systems
01 / SYSTEMS
Water systems serving Napa
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 |
|---|---|---|---|
| Napa, City OfCA2810003 | 84,804 | Surface water | No current violation flagged |
| American Canyon, City OfCA2810005 | 21,437 | Surface water | Current monitoring/reporting flag |
| Calistoga, City OfCA2810002 | 5,610 | Surface water | Current monitoring/reporting flag |
| St. Helena, City OfCA2810004 | 5,386 | Surface water | Current monitoring/reporting flag |
| Town Of YountvilleCA2810007 | 2,787 | Surface water purchased | No current violation flagged |
02 / SOURCE MIX
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.