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County drinking water records

Loudoun County, VA drinking water systems

17 community water systems serve Loudoun County, VA, reporting 423,703 people served in all.

2 of them (12%) had at least one health-based violation in the last 10 years. None of those systems has one still unresolved.

13 rely mainly on groundwater and 4 on surface water, counting water bought from other systems.

Their lead service line inventories list 1 lead line, 69 galvanized lines that must be replaced and 1,017 lines of unknown material.

2 more systems are placed in Loudoun County, VA by the county their records name because they have no service area map that lines up with their own records, so they are listed apart and not counted here.

Community water systems
17
People served, sum of each system's own figure
423,703
Systems with a health-based violation, last 10 years
2
Systems with one unresolved
0
Lead service lines in inventories
1

Water systems serving Loudoun County

17 systems

People served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Loudoun Water - Central System Ashburn, South Riding and 19 more 334,808 Surface water 0 0 0
Town of Leesburg Leesburg 65,028 Surface water 0 0 0
Town of Purcellville Purcellville 8,929 Surface water 0 0 0
Town of Round Hill Round Hill and land outside it 5,019 Groundwater 0 0 1
Town of Lovettsville Lovettsville 2,964 Groundwater 0 0 0
Town of Hamilton Hamilton and land outside it 2,240 Groundwater 0 0 0
Selma Estates Outside cities and towns 1,540 Groundwater under direct influence 0 0 0
Elysian Heights Outside cities and towns 1,061 Groundwater 0 0 0
Town of Middleburg Middleburg 803 Groundwater 0 0 0
Beacon Hill-Lcsa Outside cities and towns 333 Groundwater 0 0 0
Foxcroft School Outside cities and towns 301 Groundwater 4 0 0
Reserve at Rokeby Farm Outside cities and towns 284 Groundwater 0 0 0
Creighton Farms Outside cities and towns 95 Groundwater 0 0 0
Town of Hillsboro Hillsboro 88 Groundwater 1 0 0
Hiway MHC LLC Outside cities and towns 80 Groundwater 0 0 0
Aldie Water Company Aldie 70 Groundwater 0 0 0
One Stop Trailer Park Outside cities and towns 60 Groundwater 0 0 0

Systems placed by county record in Loudoun County

2 systems

EPA has no service area map for these systems. They are placed by the county their records name (the counties EPA lists them serving, or the county coded in their IDs where EPA lists none), and without a map they are not counted in the figures above.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Stoneleigh County on record 438 Groundwater 0 0 0
North Spring Behavioral Healthcare County on record 225 Groundwater under direct influence 1 0 0

Cities and towns in Loudoun County

29 places

Back to Virginia

Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations