McDonough County, Illinois
SDWIS compliance plate
Sheet IL109 · McDonough County 24 sys · 2,854 viol · #1263/3254
VIOL-SEVERE · HEALTH-MID · RANK-UPPER · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-SMALL · BOOK-FULL
- VIOL-SEVERE 83.3% flagged
- HEALTH-MID 29.9% health
- RANK-UPPER #1263/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-CLEAN 0.0% detect
- SRC-GW GW lead 63%
- SYS-SMALL 24 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Jackson County (+ 0 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, McDonough County ranks #1,263 of 3,254 counties by people served, and #42 of 102 counties in Illinois. See methodology · corpus placement.
McDonough County standing, lower-flagged corpus third
Flagged-system rate 83.3% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 29.9% is health-based share above the upper third (> 24.5%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #1,263 of 3,254 · #42 of 102 in Illinois.
Flagged-rate neighbourhood around McDonough County
Lowest/highest poles plus in-state counties nearest McDonough County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Macomb | 15,052 | 195 | Clean |
| Western Illinois University | 8,000 | 68 | Clean |
| Bushnell | 2,972 | 70 | Clean |
| West Prairie Water Co-Op | 2,395 | 6 | - |
| Colchester | 1,395 | 172 | - |
| Blandinsville | 569 | 49 | Clean |
| Industry | 540 | 29 | - |
| Good Hope | 536 | 40 | - |
| New Salem Pwd | 451 | 97 | - |
| Prairie City | 425 | 152 | - |
| Bardolph | 303 | 219 | - |
| Kiljordan Meadows | 282 | 0 | - |
| Sciota | 180 | 7 | - |
| Victory Baptist Church | 75 | 30 | - |
| Walnut Gr United Methodist Chu | 50 | 59 | - |
| Bushnell Market | 50 | 4 | - |
| Walmart Supercenter 0197 | 50 | 0 | - |
| Stratford West Association, Inc. | 44 | 1,590 | - |
| Jerusalem United Methodist Church | 40 | 39 | - |
| Envirofil of Illinois | 31 | 11 | - |
| Macomb Municipal Airport | 25 | 14 | - |
| Hyvee Inc | 25 | 0 | - |
| Just Chillin Ice and Water | 25 | 3 | - |
| Midwest Ice LLC | 25 | 0 | - |
Compare beyond Illinois
Lower-flagged peers for McDonough County
Cross-state counties nearest McDonough County on flagged-system share (83.3%) and cumulative violation count (2,854). 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.