PlainWater
Counties → Illinois

Massac County, Illinois

Water Systems
6
Population Served
14,370
Total Violations
404
25 health-based
PFAS Detected
0
of 2 tested

Violation Analysis

100.0%
Systems with Violations
67.3
Avg Violations per System
6.2%
Health-Based Violations

Water Source Types

GW
6 systems (100%)

PFAS Contamination

2
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

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

No violations on record (0) One or more violations (6)

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
Metropolis 6,309 133 Clean
Fort Massac Pwd 6,290 31 Clean
Brookport 730 18 -
Solstice Advanced Materials US, Inc 470 174 -
Joppa 445 33 -
Super 8 126 15 -

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 Massac County? ▼
Massac County has 404 total drinking water violations across 6 water systems, of which 25 are health-based violations. 100.0% of systems have at least one violation.
How many people get water from Massac County systems? ▼
Water systems in Massac County serve approximately 14,370 people through 6 public water systems.
Has PFAS been detected in Massac County water? ▼
Of 2 water systems tested for PFAS in Massac County, 0 had PFAS detected (0.0% detection rate).
What types of water sources supply Massac County? ▼
Water systems in Massac County use GW (6 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. 6.2% of Massac 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.