Ashburn, VA: 1 Violation - Home Safety 83/100
5 ZIP codes · 1 water system · Updated
ZipCheckup grade for Ashburn: B.
This ZIP has a few items worth a quick check.
Ashburn, VA: a top-two-band grade.
How Ashburn Compares
Data: EPA SDWIS
Ashburn Water: The Quick Version
- Water systems mapped to your city have 1 violation on record since 2021.
- Average of reported 90th-percentile lead results: 0.0005 mg/L.
- Estimated remediation: $500 per household.
- Health risk index (ZipCheckup composite of CDC data): 9.74.
Water Systems Serving Ashburn
Federal drinking water data connect ZIP codes in Ashburn, VA to a count of 1 system, and the list on this page shows one of them. A listing reflects that link, not proof of which system serves a given street.
- B
Overview
We track home safety data for 5 ZIP codes in Ashburn, Virginia (population ~130,622), covering 1 community water system serving approximately 334,808 people region-wide. The EPA snapshots used for this build directly map water systems to 2 of 5 ZIP codes.
2 of 2 ZIP codes with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.
Home Safety Score
Average Home Safety Score for Ashburn: B (83/100)
Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| PFAS MCL Screen | UCMR 5 testing against the covered federal MCLs |
| Radon Risk | EPA radon zone classification |
| Annual AQI | EPA AirData county-year median with at least 90 observed days |
Water Sources
Ashburn water systems draw from: Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0005 mg/L (EPA action level: 0.015 mg/L)
- 0 of 2 ZIP codes with known status exceed the EPA lead action level
Radon Risk
5 of 5 ZIP records with known zones are in EPA Radon Zone 2.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Lead and Copper Rule | Treatment Technique | 3 | 2 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 20147 | B | 1 | 0 | Loudoun Water - Central System |
| 20148 | B | 1 | 0 | Loudoun Water - Central System |
All ZIP Codes in Ashburn
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
CDC Health Data for Ashburn
Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Key Contaminants Detected in Ashburn
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Ashburn: Remediation Cost in Perspective
This section sets two area figures side by side for Ashburn: the median home value and an estimated remediation cost. Here the estimate equals no more than 1% of that value, which places the city in the low tier; it is an area estimate, and the cost for any one property can be higher or lower.
Estimated remediation costs in Ashburn can be compared with local home values. The $300–$800 estimated range can be set against the median property value; actual costs vary by home. Home values are 169% above the Virginia average.
Protecting Children from Lead in Ashburn
Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Available area-level lead records for Ashburn do not determine the lead level at an individual tap. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical Flood-Claim Evidence for Ashburn
Historical NFIP data for Ashburn contains 13 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $4,639. Among ZIP codes with claim records, 0% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The $500 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.
Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.
Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.
Deep Dive Reports
Detailed analysis for Ashburn, VA