Virginia water quality
Virginia has 2,473 active public water systems (8,649 on file total), 849 of them graded by TapGraded.
Grade distribution
Biggest water systems
FAIRFAX COUNTY WATER AUTHORITY
HERNDON, VA · 1,121,613 served
VIRGINIA BEACH, CITY OF
VIRGINIA BEACH, VA · 437,994 served
NEWPORT NEWS, CITY OF
NEWPORT NEWS, VA · 407,300 served
CHESTERFIELD CO CENTRAL WATER SYSTEM
CHESTERFIELD, VA · 389,897 served
LOUDOUN WATER - CENTRAL SYSTEM
ASHBURN, VA · 334,808 served
HENRICO COUNTY WATER SYSTEM
HENRICO, VA · 330,000 served
NORFOLK, CITY OF
NORFOLK, VA · 234,220 served
RICHMOND, CITY OF
RICHMOND, VA · 233,655 served
ARLINGTON COUNTY
ARLINGTON, VA · 215,000 served
WESTERN VIRGINIA WATER AUTHORITY
ROANOKE, VA · 182,700 served
Lowest-graded systems
Active, graded systems serving at least 10,000 people, ordered by lowest Tap Grade first.
WILDERNESS
MADISON, VA · 13,274 served
DANVILLE, CITY OF
DANVILLE, VA · 42,590 served
MCB QUANTICO - MAINSIDE
MCINCR, MCB QUANTICO, VA · 19,000 served
LANGLEY AIR FORCE BASE
LANGLEY AFB, VA · 10,886 served
NORFOLK, CITY OF
NORFOLK, VA · 234,220 served
FAIRFAX COUNTY WATER AUTHORITY
HERNDON, VA · 1,121,613 served
NEWPORT NEWS, CITY OF
NEWPORT NEWS, VA · 407,300 served
WESTERN VIRGINIA WATER AUTHORITY
ROANOKE, VA · 182,700 served
PWCSA - EAST
WOODBRIDGE, VA · 168,747 served
STAFFORD COUNTY UTILITIES
STAFFORD, VA · 123,684 served
Cities in Virginia
Source: EPA SDWIS/ECHO · Data as of 2026Q2