Ashburn, VA: 1 Violation - Home Safety 83/100
5 ZIP codes · 1 water system · Updated
ZipCheckup grade for Ashburn: B.
This ZIP looks solid, with a few items worth a quick check.
In current VA EPA data, Ashburn's tap water sits in the high-safety tier.
How Ashburn Compares
Data: EPA SDWIS
Ashburn Water: The Quick Version
- Your city's water systems recorded 1 violation in the past 5 years.
- Average lead level: 0.0005 mg/L.
- Estimated remediation: $1,300 per household.
- CDC health risk index: 9.74.
Water Systems Serving Ashburn
Ashburn, VA runs on one primary water provider among the 1 federally tracked system. A single utility is responsible for the overwhelming share of residential supply - including the infrastructure, compliance filings, and rate schedules that govern service for most households.
- 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 lead level (90th percentile): 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
Dominant radon zone: Zone 2 (Moderate Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 5 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 1 DBP 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). Water contamination can correlate with respiratory and chronic health conditions.
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
How much of a Ashburn home's value does documented remediation represent? A small fraction - the equity share here is in the low tier, and from a household financial perspective, most property owners are considering a commitment that fits comfortably within standard planning rather than a decision that rises to the level of a material budget event or significant equity consideration.
Remediation costs in Ashburn are relatively low compared to home values. The $580–$2,140 estimated range is a small fraction of median property value. Home values are 169% above the Virginia average.
Protecting Children from Lead in Ashburn
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Lead risk in Ashburn appears low overall, but individual homes may differ. 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 <strong>$1,300</strong> 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