Arlington, VA: 60 Violations — 81/100 (2026)
30 ZIP codes · 5 water systems · Updated 2026-06-03
Arlington, VA: reliable drinking water, above-average safety record, few violations.
How Arlington Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Arlington, VA
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Distribution of water safety grades across Arlington.
Arlington Water: The Quick Version
- Your city's water systems recorded 60 violations in the past 5 years.
- Average lead level: 0.0006 mg/L.
- Estimated remediation: $1,789 per household.
- CDC health risk index: 8.74.
Water Systems Serving Arlington
Water delivery in Arlington, VA is handled by 3 utilities rather than a single system — drawn from 5 providers in federal records, each filing its own compliance reports and setting its own rates.
Overview
We track water quality and home safety data for 30 ZIP codes in Arlington, Virginia (population ~234,881), covering 5 community water systems serving approximately 1,497,303 people region-wide.
30 of 30 ZIP codes (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Arlington: B (81/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Arlington water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0006 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 30 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 |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Technique | 62 | 30 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 22201 | B | 2 | 0 | Arlington County |
| 22202 | B | 2 | 0 | Arlington County |
| 22203 | B | 2 | 0 | Arlington County |
| 22204 | B | 2 | 0 | Arlington County |
| 22205 | B | 2 | 0 | Arlington County |
| 22206 | B | 2 | 0 | Arlington County |
| 22207 | B | 2 | 0 | Arlington County |
| 22209 | B | 2 | 0 | Arlington County |
| 22210 | B | 2 | 0 | Arlington County |
| 22212 | B | 2 | 0 | Arlington County |
All ZIP Codes in Arlington
- 22201 [B] — 2 violations
- 22202 [B] — 2 violations
- 22203 [B] — 2 violations
- 22204 [B] — 2 violations
- 22205 [B] — 2 violations
- 22206 [B] — 2 violations
- 22207 [B] — 2 violations
- 22209 [B] — 2 violations
- 22210 [B] — 2 violations
- 22212 [B] — 2 violations
- 22213 [B] — 2 violations
- 22214 [B] — 2 violations
- 22215 [B] — 2 violations
- 22216 [B] — 2 violations
- 22217 [B] — 2 violations
- 22218 [B] — 2 violations
- 22219 [B] — 2 violations
- 22222 [B] — 2 violations
- 22225 [B] — 2 violations
- 22226 [B] — 2 violations
- 22227 [B] — 2 violations
- 22230 [B] — 2 violations
- 22234 [B] — 2 violations
- 22240 [B] — 2 violations
- 22241 [B] — 2 violations
- 22242 [B] — 2 violations
- 22243 [B] — 2 violations
- 22244 [B] — 2 violations
- 22245 [B] — 2 violations
- 22246 [B] — 2 violations
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
Updated daily.
CDC Health Data for Arlington
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 Arlington
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Arlington: Remediation Cost in Perspective
At current valuations, Arlington sits in the low remediation-share tier — the equity impact of fixing documented issues is proportionally minor.
Remediation costs in Arlington are relatively low compared to home values. The $1,167–$2,678 estimated range is a small fraction of median property value. Home values are 158% above the Virginia average.
Protecting Children from Lead in Arlington
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 Arlington 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.
Climate-Related Water Risk for Arlington
Within the NFIP's national dataset, Arlington falls in moderate-exposure territory — 218 documented incidents spanning multiple decades, with 30% of local ZIP codes sitting inside FEMA flood boundaries. That combination warrants inclusion in any thorough local water quality review.
Arlington has a moderate flood history with 218 FEMA claims averaging $5,018 per payout. 30% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
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. Flood damage can add significantly to the estimated <strong>$1,789</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
Deep Dive Reports
Detailed analysis for Arlington, VA