Tapcensus

Water quality in One Loudoun, Virginia

One Loudoun is in Loudoun County. 107 active public water systems serve the county; 33 had an EPA violation in the past three years.

Most likely your provider

Loudoun Water Central System VA6107350 · Community water system · Surface water
Serves 334,808 people Rules violated, past 3 years 1 Last sanitary survey Feb 26, 2024 Distance 4.8 mi

Your location is within the outer bounds of this system's EPA service area.

View system details EPA facility report

Other community water systems in Loudoun County

18 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Leesburg, Town of
 65,028 0 6.1 mi
Reserve at Rokeby Farm
 284 0 7.9 mi
Creighton Farms
 95 0 9.3 mi
Beacon Hill
 336 0 10.0 mi
Selma Estates
 1,540 0 10.5 mi
Aldie Water Company
 70 1 11.4 mi
Hiway MHC LLC
 80 1 12.1 mi
One Stop Trailer Park
 60 1 12.1 mi
Hamilton, Town of
 2,240 0 13.2 mi
Elysian Heights
 1,061 0 13.7 mi
Purcellville, Town of
 8,929 0 15.1 mi
Middleburg, Town of
 803 0 16.4 mi
Foxcroft School
 301 2 17.4 mi
Hillsboro, Town of
 88 2 17.7 mi
Round Hill, Town of
 5,055 0 17.9 mi
Lovettsville, Town of
 2,964 0 18.4 mi
Stoneleigh
 438 0 —
North Spring Behavioral Healthcare
 225 0 —
Non-community systems in Loudoun County (88: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Sterling Ruritan
 75 0 0
Tart Lumber Company, Inc.
 60 2 0
Claude Moore Park Visitor Center
 800 0 0
Claude Moore Park Caretaker's House
 25 0 0
Trowbridge Steel Company
 45 2 1
Brambleton Golf Course
 25 0 0
Loudoun County Firing Range
 88 0 0
Congregation Sha`are Shalom
 42 0 0
Evergreen United Methodist Church
 25 1 0
VA Revolution
 1,001 1 0
Adesa Washington DC
 178 0 0
Wdf Mansion
 26 0 0
Banshee Reeks Park
 50 0 0
Leesburg Animal Park
 25 0 0
North Oatlands Animal Hospital
 55 0 0
Old Farm Winery at Hartland
 25 0 0
Orion Project (hitt)
 300 1 0
Oatlands Plantation
 30 1 0
Morven Park Inter Equest Center
 50 0 0
Wdf Comfort Station
 25 0 0
Raspberry Plain Manor
 25 2 0
Main Street Truck Stop
 206 2 1
Cerritos Pupuseria
 58 2 0
Temple Hall Farm Park
 25 0 0
Quattro Goomba's Winery-Brewery
 50 0 0
Stone Tower Tasting Rooms
 58 1 0
Halcyon Watson Event Center
 50 1 0
Eagletree Farm
 86 0 0
Barnhouse Brewery
 25 0 0
Three Creeks Winery
 45 0 0
48 Fields
 25 2 0
Scott Jenkins Memorial Park
 300 0 0
Lark Brewing
 25 0 0
Briar Patch B&b
 50 0 0
Lucketts Elementary School
 269 0 0
Camp Highroad
 150 2 0
St. Cyril Coptic Church
 25 1 0
Hamilton Station Gastropub
 25 2 0
The AG District Center
 58 0 0
Pev`s Paintball
 40 0 0
Loudoun Milling Company
 30 0 0
Waterford Elementary School
 196 0 0
Camp Potomac Woods
 25 0 0
Black Hops Farm
 25 0 0
Meadowkirk, Inc. at Delta Farm
 25 0 0
Eit2.0
 25 0 0
Endhardt Vineyards
 40 0 0
St. Francis de Sales Catholic Church
 103 2 0
Philomont Community Center
 40 0 0
Creeks Edge Winery
 64 1 0
All non-community systems
About this data

Water systems are matched to Loudoun County, nearest to One Loudoun first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.

Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Virginia records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.