Washington County, Illinois
SDWIS compliance plate
Sheet IL189 · Washington County 13 sys · 276 viol · #1749/3254
VIOL-SEVERE · HEALTH-MID · RANK-MID · PHOTO-FINISH · PFAS-HIGH · SRC-SW · SYS-SMALL · BOOK-FULL
- VIOL-SEVERE 100.0% flagged
- HEALTH-MID 27.9% health
- RANK-MID #1749/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-HIGH 50.0% detect
- SRC-SW SW lead 92%
- SYS-SMALL 13 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Bond County (+ 0 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Washington County ranks #1,749 of 3,254 counties by people served, and #56 of 102 counties in Illinois. See methodology · corpus placement.
Washington County standing, mid-flagged corpus third
Flagged-system rate 100.0% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 27.9% is health-based share above the upper third (> 24.5%) . UCMR5 detect rate 50.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #1,749 of 3,254 · #56 of 102 in Illinois.
Flagged-rate neighbourhood around Washington County
Lowest/highest poles plus in-state counties nearest Washington County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Washington County Water Company | 11,374 | 27 | Detected |
| Nashville | 3,230 | 24 | Clean |
| Okawville | 1,521 | 27 | - |
| Irvington | 1,081 | 15 | - |
| Hoyleton Rwc | 1,020 | 18 | - |
| Hoyleton | 658 | 9 | - |
| Ashley | 565 | 61 | - |
| New Minden | 343 | 3 | - |
| Richview | 251 | 18 | - |
| Dubois | 200 | 31 | - |
| Radom | 193 | 32 | - |
| Hoyleton-New Minden | 35 | 4 | - |
| Lucky Ice Ashley | 25 | 7 | - |
Compare beyond Illinois
Mid-flagged peers for Washington County
Cross-state counties nearest Washington County on flagged-system share (100.0%) and cumulative violation count (276). 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.