PlainWater
Counties → Oklahoma

McClain County, Oklahoma

Water Systems
13
Population Served
24,400
Total Violations
2,005
317 health-based
PFAS Detected
2
of 2 tested

Violation Analysis

92.3%
Systems with Violations
154.2
Avg Violations per System
15.8%
Health-Based Violations

Water Source Types

GW
8 systems (62%)
SW
5 systems (38%)

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

McClain Oklahoma water systems by violation status, EPA SDWIS records.

No violations on record (1) 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
Newcastle 7,900 103 Detected
Purcell 6,693 74 Clean
Blanchard 2,966 98 -
Goldsby Water Auth Trust 2,000 232 -
McClain Co RWD # 8 1,897 407 -
Wayne 688 121 -
Washington 600 179 -
Dibble 550 55 -
Cole 473 65 -
Byars 275 126 -
McClain County Rw & SD #9 250 4 -
Whippoorwill Estates 83 541 -
Trek Coffee Co 25 0 -

Other Counties in Oklahoma

Oklahoma County
121 systems · 889,384 served · 20,669 violations
Tulsa County
15 systems · 666,353 served · 1,073 violations
Cleveland County
73 systems · 216,341 served · 8,560 violations
Comanche County
25 systems · 137,288 served · 5,160 violations
Payne County
22 systems · 87,559 served · 2,865 violations
Rogers County
15 systems · 75,204 served · 2,062 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in McClain County? ▼
McClain County has 2,005 total drinking water violations across 13 water systems, of which 317 are health-based violations. 92.3% of systems have at least one violation.
How many people get water from McClain County systems? ▼
Water systems in McClain County serve approximately 24,400 people through 13 public water systems.
Has PFAS been detected in McClain County water? ▼
Of 2 water systems tested for PFAS in McClain County, 2 had PFAS detected (100.0% detection rate).
What types of water sources supply McClain County? ▼
Water systems in McClain County use GW (8 systems), SW (5 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. 15.8% of McClain 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.