PlainWater
Counties → Missouri

Ray County, Missouri

Water Systems
8
Population Served
15,271
Total Violations
270
39 health-based
PFAS Detected
0
of 1 tested

Violation Analysis

100.0%
Systems with Violations
33.8
Avg Violations per System
14.4%
Health-Based Violations

Water Source Types

GW
8 systems (100%)

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

Ray Missouri water systems by violation status, EPA SDWIS records.

No violations on record (0) One or more violations (8)

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
Richmond PWS 5,797 38 Clean
MO American Lawson 2,546 22 -
Ray County PWSD 1 2,490 10 -
Ray County PWSD 3 1,970 12 -
MO American Orrick 752 33 -
MO American Wood Heights 750 47 -
Hardin PWS 569 35 -
Henrietta PWS 397 73 -

Other Counties in Missouri

St. Louis County
23 systems · 1,145,619 served · 1,825 violations
Cass County
31 systems · 625,744 served · 1,771 violations
Jackson County
23 systems · 405,266 served · 559 violations
St. Charles County
54 systems · 310,776 served · 2,706 violations
St. Louis city County
1 systems · 304,709 served · 27 violations
Greene County
82 systems · 265,439 served · 7,132 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Ray County? ▼
Ray County has 270 total drinking water violations across 8 water systems, of which 39 are health-based violations. 100.0% of systems have at least one violation.
How many people get water from Ray County systems? ▼
Water systems in Ray County serve approximately 15,271 people through 8 public water systems.
Has PFAS been detected in Ray County water? ▼
Of 1 water systems tested for PFAS in Ray County, 0 had PFAS detected (0.0% detection rate).
What types of water sources supply Ray County? ▼
Water systems in Ray County use GW (8 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. 14.4% of Ray 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.