PlainWater

Clay County, Minnesota

Water Systems
51
Population Served
60,378
Total Violations
534
239 health-based
PFAS Detected
2
of 2 tested

Violation Analysis

52.9%
Systems with Violations
10.5
Avg Violations per System
44.8%
Health-Based Violations

Water Source Types

GW
48 systems (94%)
SW
2 systems (4%)

PFAS Contamination

2
Systems Tested
2
PFAS Detected
100.0%
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

Clay Minnesota water systems by violation status, EPA SDWIS records.

No violations on record (23) One or more violations (27)

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

Water Systems

Other Counties in Minnesota

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Clay County?
Clay County has 534 total drinking water violations across 51 water systems, of which 239 are health-based violations. 52.9% of systems have at least one violation.
How many people get water from Clay County systems?
Water systems in Clay County serve approximately 60,378 people through 51 public water systems.
Has PFAS been detected in Clay County water?
Of 2 water systems tested for PFAS in Clay County, 2 had PFAS detected (100.0% detection rate).
What types of water sources supply Clay County?
Water systems in Clay County use GW (48 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. 44.8% of Clay 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.

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.