COUNTY WATER-SYSTEM LEDGER
Fairfax, Virginia
EPA’s September 2026 export lists 4 active community water systems serving Fairfax, Virginia, with 0 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 Fairfax, Virginia
EPA associates 4 covered systems with Fairfax, Virginia; their reported population-served values total 1,212,651 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 |
|---|---|---|---|
| Fairfax County Water AuthorityVA6059501 | 1,121,613 | Surface water | No current violation flagged |
| Fort BelvoirVA6059450 | 39,303 | Surface water purchased | No current violation flagged |
| Vienna, Town OfVA6059800 | 27,134 | Surface water purchased | No current violation flagged |
| Herndon, Town OfVA6059550 | 24,601 | Surface water purchased | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Fairfax, Virginia
EPA classifies 4 systems serving Fairfax, Virginia across 2 primary-source categories; Surface water is the largest category with 1 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.