Arlington County, Virginia
SDWIS compliance plate
Sheet VA013 · Arlington County 4 sys · 65 viol · #286/3254
VIOL-SEVERE · HEALTH-LOW · RANK-TOP · PHOTO-FINISH · PFAS-HIGH · SRC-SW · SYS-TINY · BOOK-FULL
- VIOL-SEVERE 75.0% flagged
- HEALTH-LOW 9.2% health
- RANK-TOP #286/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-HIGH 100.0% detect
- SRC-SW SW lead 100%
- SYS-TINY 4 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Nottoway County (+ 0 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Arlington County ranks #286 of 3,254 counties by people served, and #6 of 95 counties in Virginia. See methodology · corpus placement.
Arlington County standing, lower-flagged corpus third
Flagged-system rate 75.0% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 9.2% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 100.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #286 of 3,254 · #6 of 95 in Virginia.
Flagged-rate neighbourhood around Arlington County
Lowest/highest poles plus in-state counties nearest Arlington County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Arlington County | 215,000 | 15 | Detected |
| National Airport | 28,055 | 6 | Detected |
| Arlington County - Willston Area | 1,352 | 44 | - |
| Virginia Hospital Center | 340 | 0 | - |
Compare beyond Virginia
Lower-flagged peers for Arlington County
Cross-state counties nearest Arlington County on flagged-system share (75.0%) and cumulative violation count (65). In-state neighbours stay on the compliance plate above.
Similar flagged-system rate
Nearest cross-state counties by % of SDWIS systems with at least one violation on record.
Similar violation load
Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).
Read our methodology · Check your water system - how this data is sourced, computed, and verified.
Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.