Mc Lean, VA Water Safety: 62/100 (2026)
6 ZIP codes · 3 water systems · Updated 2026-06-03
Recent monitoring in Mc Lean shows middle-tier safety for VA — some systems are clean; others have logged EPA violations.
How Mc Lean Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Mc Lean, VA
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
How ZIP codes in Mc Lean score across all safety grades.
What You Should Know About Mc Lean Water
- Estimated remediation: $2,700 per household.
- CDC health risk index: 9.75.
Who Supplies Your Water in Mc Lean
Federal records list 3 water systems tied to Mc Lean, VA. Of those, 3 are the primary providers, meaning service conditions, rate structures, and compliance histories can differ depending on where a property sits.
Overview
We track water quality and home safety data for 6 ZIP codes in Mc Lean, Virginia (population ~59,883), covering 3 community water systems serving approximately 1,366,613 people region-wide.
No EPA violations recorded across any ZIP codes in Mc Lean — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Mc Lean: C (62/100)
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
Mc Lean water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Mc Lean
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
- Zone 1 (High): 1 ZIP code
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 5 ZIP codes
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 22101 | C | ARLINGTON COUNTY | 215,000 |
| 22102 | D | FAIRFAX COUNTY WATER AUTHORITY | 1,121,613 |
| 22106 | C | ARLINGTON COUNTY | 215,000 |
| 22107 | C | ARLINGTON COUNTY | 215,000 |
| 22108 | C | ARLINGTON COUNTY | 215,000 |
| 22109 | C | ARLINGTON COUNTY | 215,000 |
All ZIP Codes in Mc Lean
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.
Health Outcomes in Mc Lean
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
Cost Context: What Remediation Means for Mc Lean Homeowners
While no remediation project is entirely without cost, the relationship between estimated remediation and property values in Mc Lean is notably favorable — the equity share is small enough that the household financial perspective is one of proportionality rather than pressure, and most homeowners can treat it as routine planning rather than a significant financial event.
Remediation costs in Mc Lean are relatively low compared to home values. The $1,800–$3,700 estimated range is a small fraction of median property value. Home values are 309% above the Virginia average.
Flood & Climate Risk in Mc Lean
33% of ZIP codes in Mc Lean are mapped into FEMA-designated flood zones, and the NFIP records 104 claims reflecting a multi-event flood history. That combination places local flood exposure in the range where water-quality implications deserve at least periodic attention.
Mc Lean has a moderate flood history with 104 FEMA claims averaging $17,214 per payout. 33% 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>$2,700</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.
What You Can Do in Mc Lean
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
Deep Dive Reports
Detailed analysis for Mc Lean, VA