B76/100
LOUDOUN WATER - CENTRAL SYSTEM — Water Quality Report 2026
Serving 334,808 people · Virginia
Water Source
Surface Water
County
—
System ID
VA6107350
Violations
13
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | < 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Failed to issue ongoing public notification
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2023 – June 25, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About LOUDOUN WATER - CENTRAL SYSTEM
Is LOUDOUN WATER - CENTRAL SYSTEM water safe to drink?
LOUDOUN WATER - CENTRAL SYSTEM water receives a grade of B (76/100), which is considered good. Out of 76 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has LOUDOUN WATER - CENTRAL SYSTEM detected?
76 contaminants were tested in LOUDOUN WATER - CENTRAL SYSTEM's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does LOUDOUN WATER - CENTRAL SYSTEM have any EPA violations?
Yes, LOUDOUN WATER - CENTRAL SYSTEM has 13 EPA violation(s) on record, with the most recent in 2023. Violation types include MR, MCL. 2 are health-based violations.
How many people does LOUDOUN WATER - CENTRAL SYSTEM serve?
LOUDOUN WATER - CENTRAL SYSTEM serves approximately 334,808 people, Virginia.
What type of water does LOUDOUN WATER - CENTRAL SYSTEM provide?
LOUDOUN WATER - CENTRAL SYSTEM sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is VA6107350.
How does LOUDOUN WATER - CENTRAL SYSTEM compare to other utilities in Virginia?
LOUDOUN WATER - CENTRAL SYSTEM scores 76/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Virginia state page for a full comparison of water systems.