PlainWater
Counties → Kentucky

Mercer County, Kentucky

Water Systems
4
Population Served
26,366
Total Violations
967
110 health-based
PFAS Detected
2
of 3 tested

Violation Analysis

100.0%
Systems with Violations
241.8
Avg Violations per System
11.4%
Health-Based Violations

Water Source Types

SW
4 systems (100%)

PFAS Contamination

3
Systems Tested
2
PFAS Detected
66.7%
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

Mercer Kentucky water systems by violation status, EPA SDWIS records.

No violations on record (0) One or more violations (4)

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
North Mercer Water District 9,775 61 Detected
Harrodsburg Municipal Water Department 8,310 675 Clean
Lake Village Water Association 6,855 139 Detected
Burgin Water Department 1,426 92 -

Other Counties in Kentucky

Jefferson County
1 systems · 764,769 served · 660 violations
Fayette County
1 systems · 299,501 served · 30 violations
Kenton County
1 systems · 199,460 served · 674 violations
Warren County
2 systems · 144,719 served · 689 violations
Hardin County
4 systems · 136,859 served · 885 violations
Daviess County
5 systems · 112,731 served · 830 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Mercer County? ▼
Mercer County has 967 total drinking water violations across 4 water systems, of which 110 are health-based violations. 100.0% of systems have at least one violation.
How many people get water from Mercer County systems? ▼
Water systems in Mercer County serve approximately 26,366 people through 4 public water systems.
Has PFAS been detected in Mercer County water? ▼
Of 3 water systems tested for PFAS in Mercer County, 2 had PFAS detected (66.7% detection rate).
What types of water sources supply Mercer County? ▼
Water systems in Mercer County use SW (4 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. 11.4% of Mercer 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.