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Counties → Illinois

Tazewell County, Illinois

SDWIS compliance plate

Sheet IL179 · Tazewell County 100 sys · 7,258 viol · #478/3254

VIOL-SEVERE · HEALTH-LOW · RANK-TOP · PHOTO-FINISH · PFAS-MID · SRC-GW · SYS-MID · BOOK-FULL

  • VIOL-SEVERE 88.0% flagged
  • HEALTH-LOW 5.7% health
  • RANK-TOP #478/3254
  • PHOTO-FINISH ±0.1 pp
  • PFAS-MID 25.0% detect
  • SRC-GW GW lead 100%
  • SYS-MID 100 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Woodford County ( -0.1 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Tazewell County ranks #478 of 3,254 counties by people served, and #15 of 102 counties in Illinois. See methodology · corpus placement.

Tazewell County standing, lower-flagged corpus third

Flagged-system rate 88.0% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 5.7% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 25.0% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #478 of 3,254 · #15 of 102 in Illinois.

Flagged-rate neighbourhood around Tazewell County

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

0% 20% 40% 60% 80% 100% Sangamon · lowest Montgomery · near Woodford · near Pulaski · highest 58.8% 87.5% 87.5% 87.5% 87.9% 88% 100%

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

Water Systems

System Name Population Violations PFAS
IL American-Pekin 31,731 5 Detected
East Peoria 22,284 40 Detected
Morton 17,111 56 Clean
Washington 14,793 20 Clean
North Tazewell Pwd 8,300 172 Clean
Creve Coeur 4,934 55 Clean
Mackinaw 3,399 21 Clean
Marquette Heights 2,974 127 -
Groveland Township Water District 2,185 4 -
Tremont 2,114 9 -
Delavan 1,743 26 -
Pekin Fed Correctional Inst and Prsncmp 1,635 12 -
North Pekin 1,478 22 -
IL American-Washington Estates 1,278 121 -
Minier 1,180 11 -
South Pekin 996 217 -
Hopedale 830 11 -
Kennel Lake Sportsmens Club 700 5 -
Deer Creek 647 87 -
Green Valley 638 27 -
Thorton Oil 351 600 2 -
Crossroads Methodist Church, Inc 600 5 -
Caterpillar Peoria Proving Grd 535 33 -
Walmart Supercenter East Peoria 500 2 -
Bay View Baptist Church 425 5 -
Faith Christian Center 400 2 -
Armington 310 58 -
Lake Windermere Estates Subdivision 300 5 Clean
Cornerstone Baptist Church 300 4 -
St Johns Lutheran Church 300 12 -
Harvard Hills Water Corporation 250 45 -
New Castle Bible Church 250 3 -
Hopedale Mennonite Church 250 7 -
Stonetown Edgewood Terrace, LLC 248 434 -
Uaw Senior Citizens Center 240 33 -
Midwest Generation - Powerton 240 140 -
Rankin School District No 98 240 16 -
Venado Lakes-Argyll Water Association 215 29 -
Pine Lakes Golf Club 200 30 -
Faith Christian Activity Cente 200 5 -
Apostolic Christian Church (135673) 200 10 -
Washington American Legion 180 8 -
Tres Rojas Winery 180 2 -
Excel Foundry & Machine 165 186 -
Rankin School Dist (148430) 158 913 -
Walmart Washington 131 0 -
Spring Lake Consol School 125 156 -
Oak Lane Acres Subdivision 120 125 -
Camp Good News 120 7 -
Kentuckiana Kampground East Wl 100 0 -

Compare beyond Illinois

Lower-flagged peers for Tazewell County

Cross-state counties nearest Tazewell County on flagged-system share (88.0%) and cumulative violation count (7,258). 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

Read our methodology · Check your water system - how this data is sourced, computed, and verified.

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.