PlainWater

Effingham County, Illinois

SDWIS compliance plate

Sheet IL049 · Effingham County 16 sys · 682 viol · #1623/3254

VIOL-SEVERE · HEALTH-LOW · RANK-MID · PHOTO-FINISH · PFAS-HIGH · SRC-SW · SYS-SMALL · BOOK-FULL

  • VIOL-SEVERE 81.3% flagged
  • HEALTH-LOW 18.9% health
  • RANK-MID #1623/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-HIGH 50.0% detect
  • SRC-SW SW lead 75%
  • SYS-SMALL 16 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Douglas County (+ 0 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Effingham County ranks #1,623 of 3,254 counties by people served, and #53 of 102 counties in Illinois. See methodology · corpus placement.

Effingham County standing, lower-flagged corpus third

Flagged-system rate 81.3% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 18.9% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 50.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #1,623 of 3,254 · #53 of 102 in Illinois.

Flagged-rate neighbourhood around Effingham County

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

0% 20% 40% 60% 80% 100% Sangamon · lowest Livingston · near Douglas · near Pulaski · highest 58.8% 81.1% 81.1% 81.3% 81.3% 81.5% 100%

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

Water Systems

System Name Population Violations PFAS
Effingham 12,252 40 Clean
Lake Sara Area Water Co-Op, Inc. 3,352 18 Detected
Altamont 2,300 100 -
Teutopolis 1,599 28 -
Heartville Pwd 1,092 25 -
Dieterich 900 70 -
Ej Water-Watson 754 25 -
Beecher City 500 126 -
Edgewood 440 30 -
Ej Water-Montrose 201 57 -
Snake Trail Wtr Assn 120 108 -
Easy Breeze Manufactured Home Park 108 51 -
Martins Iga Effingham 25 0 -
Wal-Mart Supercenter #0936 25 0 -
Icehouse Effingham 25 0 -
Ice House Altamont 25 4 -

Compare beyond Illinois

Lower-flagged peers for Effingham County

Cross-state counties nearest Effingham County on flagged-system share (81.3%) and cumulative violation count (682). 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.