Union County, Illinois
SDWIS compliance plate
Sheet IL181 · Union County 14 sys · 570 viol · #2107/3254
VIOL-SEVERE · HEALTH-HIGH · RANK-LOWER · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-SMALL · BOOK-FULL
- VIOL-SEVERE 85.7% flagged
- HEALTH-HIGH 55.1% health
- RANK-LOWER #2107/3254
- PHOTO-FINISH ±0.4 pp
- PFAS-CLEAN 0.0% detect
- SRC-GW GW lead 86%
- SYS-SMALL 14 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Kane County ( -0.4 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Union County ranks #2,107 of 3,254 counties by people served, and #69 of 102 counties in Illinois. See methodology · corpus placement.
Union County standing, lower-flagged corpus third
Flagged-system rate 85.7% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 55.1% 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 #2,107 of 3,254 · #69 of 102 in Illinois.
Flagged-rate neighbourhood around Union County
Lowest/highest poles plus in-state counties nearest Union County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Anna | 4,910 | 72 | Clean |
| Lick Creek Pwd | 2,365 | 35 | - |
| Jonesboro | 1,799 | 20 | - |
| Cobden | 1,267 | 33 | - |
| Alto Pass Water District | 1,015 | 250 | - |
| Dongola | 752 | 40 | - |
| Shawnee Valley Pwd | 738 | 50 | - |
| Choate Mhc | 300 | 15 | - |
| Blue Sky Vineyard | 150 | 2 | - |
| Fork and Vine | 70 | 23 | - |
| Owl Creek Vineyard Cobden | 60 | 17 | - |
| Anna-Jonesboro Water Commission | 26 | 13 | - |
| Wal-Mart Supercenter-Anna | 25 | 0 | - |
| Twice the Ice Anna | 25 | 0 | - |
Compare beyond Illinois
Lower-flagged peers for Union County
Cross-state counties nearest Union County on flagged-system share (85.7%) and cumulative violation count (570). 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.