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Water system · PWSID VA6107350

LOUDOUN WATER - CENTRAL SYSTEM

ASHBURN, VA · ~334,808 people served

Check your exact address → ASHBURN overview
100
Excellent
PurityRadar safety score

PWSID

VA6107350

State

Virginia

City

ASHBURN

Population served

334,808

Primary source

Surface water

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through Aug 2023). Levels in parts per trillion (ppt).

PFPeA

3.4 ppt

limit —

No federal limit

Violations & enforcement

3

Violations on record

0

Unaddressed

0

Health-based

12

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2024. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2023 Resolved
Monitoring & reporting · EPA contaminant 0600 began Jan 2009 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 2001 Resolved

Recent enforcement actions

  • State action · SIF Jul 2024
  • State action · SOX Jun 2024
  • State action · SFJ Oct 2023
  • State action · SIE Oct 2023
  • EPA/federal action · EOX Dec 2011
  • EPA/federal action · EFL Apr 2010
  • State action · SOX Jun 2002
  • State action · SIA Apr 2002

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

11 stations · latest Apr 2026

0.55 · max 1.43 mg/L · 133

Arsenic

2 stations · latest Aug 2022

0.81 · max 0.89 ug/L · 4

Copper

2 stations · latest Aug 2022

2.37 · max 3.61 ug/L · 4

Lead

2 stations · latest Aug 2022

0.04 · max 0.42 ug/L · 4

Manganese

2 stations · latest Aug 2022

55.6 · max 67 ug/L · 4

Atrazine

1 station · latest Aug 2022

5.5 · max 5.5 ng/l · 1

Uranium

1 station · latest Aug 2022

0.539 · max 0.539 ug/l · 1

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system VA6107350 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.