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Counties → Illinois

Marion County, Illinois

Water Systems
18
Population Served
42,837
Total Violations
810
231 health-based
PFAS Detected
0
of 5 tested

Violation Analysis

88.9%
Systems with Violations
45.0
Avg Violations per System
28.5%
Health-Based Violations

Water Source Types

SW
17 systems (94%)
GW
1 system (6%)

PFAS Contamination

5
Systems Tested
0
PFAS Detected
0.0%
Detection Rate

PFAS (per- and polyfluoroalkyl substances) are persistent chemicals found in drinking water. The EPA has set enforceable limits for several PFAS compounds under UCMR5 monitoring.

Compliance Snapshot

Marion Illinois water systems by violation status, EPA SDWIS records.

No violations on record (2) One or more violations (16)

Violation history is cumulative, many flagged systems have already returned to compliance. Detail pages show per-system context.

Water Systems

System Name Population Violations PFAS
Centralia 12,182 23 Clean
Salem 7,905 30 Clean
Raccoon Water Company 7,080 41 Clean
North East Marion County Water Cmpny 3,220 26 Clean
Fmc Water Company 2,945 22 -
Odin 2,543 21 -
Sandoval 1,528 37 -
Walnut Hill 1,180 8 -
Wamac 1,030 24 -
Kinmundy 940 137 Clean
Patoka 603 217 -
Junction City 494 24 -
Iuka 486 18 -
Alma 336 146 -
W G Murray Development Center 290 33 -
Wal Mart Supercenter Salem 25 0 -
Icehouse Salem 25 3 -
Twice the Ice Herrin 25 0 -

Other Counties in Illinois

Cook County
427 systems · 5,304,996 served · 21,728 violations
DuPage County
207 systems · 861,775 served · 15,779 violations
Lake County
540 systems · 719,035 served · 33,311 violations
Will County
330 systems · 622,572 served · 37,818 violations
Kane County
191 systems · 592,544 served · 12,844 violations
McHenry County
307 systems · 271,051 served · 11,554 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Marion County? ▼
Marion County has 810 total drinking water violations across 18 water systems, of which 231 are health-based violations. 88.9% of systems have at least one violation.
How many people get water from Marion County systems? ▼
Water systems in Marion County serve approximately 42,837 people through 18 public water systems.
Has PFAS been detected in Marion County water? ▼
Of 5 water systems tested for PFAS in Marion County, 0 had PFAS detected (0.0% detection rate).
What types of water sources supply Marion County? ▼
Water systems in Marion County use SW (17 systems), GW (1 systems) as their primary water sources.
Are health-based violations serious? ▼
Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 28.5% of Marion County's violations are health-based. Not all violations indicate immediate health risk, but they require corrective action.
Data Sources & Methodology

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). PFAS testing data from the UCMR5 monitoring program. SDWIS tracks all public water systems regulated under the Safe Drinking Water Act.

Violations are categorized as health-based (Maximum Contaminant Level exceedances, treatment technique failures) or monitoring/reporting violations. Not all violations indicate an immediate health risk.

Read our methodology - 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 Editorial

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.