County profile · EPA SDWIS + UCMR5
De Witt County, Illinois
20 SDWIS-listed public water systems serve 12,816 people in De Witt County. Violation rates use that full inventory; PFAS rates use only the UCMR5-tested subset.
- 20
- SDWIS water systems Middle third of counties
- 1,264
- Total violations Middle third of counties
- 90.0%
- SDWIS systems w/ a violation Lower third of counties
- 0.0%
- UCMR5 PFAS rate (1 tested) Lower third of counties with tests
SDWIS compliance plate
Sheet IL039 · De Witt County 20 sys · 1,264 viol · #2162/3254
VIOL-SEVERE · HEALTH-HIGH · RANK-LOWER · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-SMALL · BOOK-FULL
- VIOL-SEVERE 90.0% flagged
- HEALTH-HIGH 52.8% health
- RANK-LOWER #2162/3254
- PHOTO-FINISH ±0.5 pp
- PFAS-CLEAN 0.0% detect
- SRC-GW GW lead 95%
- SYS-SMALL 20 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Grundy County (+ 0.5 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, De Witt County ranks #2,162 of 3,254 counties by people served, and #73 of 102 counties in Illinois. See methodology · corpus placement.
De Witt County standing, lower-flagged corpus third
Flagged-system rate 90.0% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 52.8% 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 #2,162 of 3,254 · #73 of 102 in Illinois.
Flagged-rate neighbourhood around De Witt County
Lowest/highest poles plus in-state counties nearest De Witt County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Clinton | 7,128 | 76 | Clean |
| Farmer City | 2,055 | 26 | - |
| Constellation Clinton Power Station | 515 | 52 | - |
| Wapella | 513 | 18 | - |
| Mascoutin Sra | 500 | 15 | - |
| Waynesville | 452 | 106 | - |
| Weldon | 404 | 43 | - |
| Kenney | 374 | 201 | - |
| Clinton Power Station Rec Area Well | 200 | 6 | - |
| DE Witt | 175 | 429 | - |
| Little Galilee Christian Asmby | 150 | 13 | - |
| West Side MHP | 100 | 116 | - |
| Clinton Country Club | 75 | 21 | - |
| Weldon Springs Sp Office | 25 | 3 | - |
| Weldon Springs Sp Campgrnd | 25 | 28 | - |
| Weldon Springs Sp Day Use | 25 | 40 | - |
| Clinton Marina | 25 | 25 | - |
| Weldon Springs Sp Shwrhse | 25 | 46 | - |
| Iga Clinton 12847 | 25 | 0 | - |
| Save-A-Lot E Washington Clinton | 25 | 0 | - |
Compare beyond Illinois
Lower-flagged peers for De Witt County
Cross-state counties nearest De Witt County on flagged-system share (90.0%) and cumulative violation count (1,264). 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. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.