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

COUNTY WATER-SYSTEM LEDGER

Fairfax, Virginia

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

Systems4active CWS · pop. 2,500+
Population served1,212,651reported total; may overlap
Current violation flag0.0%0 systems
Serious-violator flag0.0%0 systems

01 / SYSTEMS

Water systems serving Fairfax

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

Water systemPopulation servedPrimary sourceCurrent export status
Fairfax County Water AuthorityVA60595011,121,613Surface waterNo current violation flagged
Fort BelvoirVA605945039,303Surface water purchasedNo current violation flagged
Vienna, Town OfVA605980027,134Surface water purchasedNo current violation flagged
Herndon, Town OfVA605955024,601Surface water purchasedNo current violation flagged

02 / SOURCE MIX

Surface water1 systems · 1,121,613 served
Surface water purchased3 systems · 91,038 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.