PlainWater
Counties → Illinois

Union County, Illinois

Water Systems
14
Population Served
13,502
Total Violations
570
314 health-based
PFAS Detected
0
of 1 tested

Violation Analysis

85.7%
Systems with Violations
40.7
Avg Violations per System
55.1%
Health-Based Violations

Water Source Types

GW
12 systems (86%)
SW
2 systems (14%)

PFAS Contamination

1
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

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

No violations on record (2) One or more violations (12)

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
Anna 4,910 72 Clean
Lick Creek Pwd 2,365 35 -
Jonesboro 1,799 20 -
Cobden 1,267 33 -
Alto Pass Water District 1,015 250 -
Dongola 752 40 -
Shawnee Valley Pwd 738 50 -
Choate Mhc 300 15 -
Blue Sky Vineyard 150 2 -
Fork and Vine 70 23 -
Owl Creek Vineyard Cobden 60 17 -
Anna-Jonesboro Water Commission 26 13 -
Wal-Mart Supercenter-Anna 25 0 -
Twice the Ice Anna 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 Union County? ▼
Union County has 570 total drinking water violations across 14 water systems, of which 314 are health-based violations. 85.7% of systems have at least one violation.
How many people get water from Union County systems? ▼
Water systems in Union County serve approximately 13,502 people through 14 public water systems.
Has PFAS been detected in Union County water? ▼
Of 1 water systems tested for PFAS in Union County, 0 had PFAS detected (0.0% detection rate).
What types of water sources supply Union County? ▼
Water systems in Union County use GW (12 systems), SW (2 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. 55.1% of Union 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.