PlainWater

Jasper County, Illinois

SDWIS compliance plate

Sheet IL079 · Jasper County 6 sys · 346 viol · #1273/3254

VIOL-SEVERE · HEALTH-LOW · RANK-UPPER · PHOTO-FINISH · PFAS-HIGH · SRC-GW · SYS-TINY · BOOK-FULL

  • VIOL-SEVERE 83.3% flagged
  • HEALTH-LOW 5.2% health
  • RANK-UPPER #1273/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-HIGH 100.0% detect
  • SRC-GW GW lead 83%
  • SYS-TINY 6 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, Jasper County ranks #1,273 of 3,254 counties by people served, and #43 of 102 counties in Illinois. See methodology · corpus placement.

Jasper 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 5.2% 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 #1,273 of 3,254 · #43 of 102 in Illinois.

Flagged-rate neighbourhood around Jasper County

Lowest/highest poles plus in-state counties nearest Jasper County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Sangamon · lowest Jackson · near Fayette · near Pulaski · highest 58.8% 83.3% 83.3% 83.3% 83.3% 83.3% 100%

Source: EPA SDWIS (county aggregates) As of 2026-05-15

Water Systems

System Name Population Violations PFAS
Ej Water Cooperative 29,720 97 Detected
Newton 2,977 3 -
Willow Hill 309 131 -
Sainte Marie 243 113 -
Martin Iga Newton 25 0 -
Ice House America Newton 25 2 -

Compare beyond Illinois

Lower-flagged peers for Jasper County

Cross-state counties nearest Jasper County on flagged-system share (83.3%) and cumulative violation count (346). 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.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

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.