PlainWater
Counties → Oklahoma

Logan County, Oklahoma

Water Systems
31
Population Served
27,600
Total Violations
7,336
1,275 health-based
PFAS Detected
2
of 2 tested

Violation Analysis

100.0%
Systems with Violations
236.6
Avg Violations per System
17.4%
Health-Based Violations

Water Source Types

GW
27 systems (87%)
SW
4 systems (13%)

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

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

No violations on record (0) One or more violations (31)

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
Guthrie 9,925 83 Detected
Logan Co RWD #1 8,907 316 Detected
Langston PWA 1,670 515 -
Logan Co RWS & Swmd #3 1,618 100 -
Crescent 1,411 72 -
Logan Co RWD #2 1,146 714 -
Whispering Oaks 350 101 -
Chisholm Springs Event Center 325 50 -
Coyle 289 141 -
Marshall 258 48 -
Mulhall 225 54 -
Orlando 201 14 -
Crescent VFW Post 7740 200 20 -
Blue Quail Logan County 188 304 -
Sham-Rock-Chalk, LLC 155 9 -
Oak Hills Industrial Development 100 26 -
Peppers Ranch 99 679 -
Pioneer RV Park 70 10 -
Waterloo Commercial Development 60 44 -
Cimarron National Golf Course 50 25 -
Arledge Ventures 40 43 -
Railhead BBQ 40 17 -
Twin Lakes Sportsman Club, Inc 40 32 -
Elks Lodge 2578 Edmond 35 41 -
Rock Creek 33 2,734 -
Lazy E Training Center 30 893 -
The Ridge on Penn HOA 30 41 -
Dollar General Store #15858 30 8 -
Rodeo Corner 25 141 -
Twin Cedars Camp 25 39 -
Lazy E Arena 25 22 -

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 Logan County? ▼
Logan County has 7,336 total drinking water violations across 31 water systems, of which 1,275 are health-based violations. 100.0% of systems have at least one violation.
How many people get water from Logan County systems? ▼
Water systems in Logan County serve approximately 27,600 people through 31 public water systems.
Has PFAS been detected in Logan County water? ▼
Of 2 water systems tested for PFAS in Logan County, 2 had PFAS detected (100.0% detection rate).
What types of water sources supply Logan County? ▼
Water systems in Logan County use GW (27 systems), 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. 17.4% of Logan 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.