PlainWater
Counties → Ohio

Clark County, Ohio

Water Systems
92
Population Served
106,745
Total Violations
9,196
1,614 health-based
PFAS Detected
1
of 5 tested

Violation Analysis

96.7%
Systems with Violations
100.0
Avg Violations per System
17.6%
Health-Based Violations

Water Source Types

GW
50 systems (54%)

PFAS Contamination

5
Systems Tested
1
PFAS Detected
20.0%
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

Clark Ohio water systems by violation status, EPA SDWIS records.

No violations on record (1) One or more violations (49)

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
Springfield City PWS 60,680 12 Clean
Clark County Northridge PWS 8,874 14 Clean
New Carlisle City PWS 5,800 31 Detected
Clark County Park Layne PWS 4,221 25 Clean
Clark County Green Meadows 2 PWS 3,008 5 Clean
Enon Village PWS 2,415 135 -
Tecumseh Schools Main Campus 2,100 90 -
South Charleston Village PWS 1,660 113 -
Youngs Jersey Dairy PWS 1,340 36 -
Clark-Shawnee Local Pk-6 School PWS 1,120 8 -
Shawnee High School 950 28 -
Fairway Terrace MHP PWS 800 118 -
Heart of Ohio Antique PWS 750 13 -
Sims and Murry Marathon PWS 750 9 -
North Hampton Village PWS 538 125 -
Harmony Estates Mobile Home Park 507 32 -
Tomorrows Stars - Back 499 77 -
Brookside Village MHP PWS 475 213 -
Donnelsville Elementary Campus 450 250 -
Chateau Estates MHP PWS 430 110 -
Northeastern Athletic Complex 423 134 -
Locust Hills Golf Club-Clubhouse 400 4 -
South Vienna Village PWS 393 232 -
Clark County Rockway PWS 383 9 -
Clark County Lawrenceville PWS 302 206 -
Ports Petroleum 280 23 -
Garden Acres Water Company PWS 260 14 -
Catawba Village PWS 241 34 -
Mayberry Mini-Mart PWS 237 90 -
Country Haven MHP PWS 234 234 -
Honey Creek Village MHP PWS 225 361 -
Hustead Marathon PWS 225 33 -
Dollar General Springfield Madriver 224 0 -
Dollar General #24617 - New Carlisle 224 4 -
Kone Korner 222 67 -
Clark County Limecrest PWS 215 1 -
571 Grill and Draft House 212 30 -
Greenlawn Condos 203 348 -
Enon Beach Campground 194 26 -
Springfield House Mimis House of Littles 185 375 -
Ipl Dayton Inc 181 268 -
Lawrenceville Church of God PWS 175 9 -
Heritage Fellowship Church 170 70 -
Sugar Isle Golf Course 162 47 -
Risen Christ Lutheran Church PWS 160 116 -
Brookwood MHP PWS 145 80 -
Bethel Community Church of the Nazarene 130 33 -
Greenon Athletic Building 129 188 -
Forest Valley Free Will Bapt Church PWS 125 33 -
Woodbury Apartments PWS 120 1,407 -

Other Counties in Ohio

Franklin County
96 systems · 1,503,985 served · 5,342 violations
Cuyahoga County
11 systems · 1,410,751 served · 1,166 violations
Hamilton County
28 systems · 842,267 served · 1,480 violations
Montgomery County
74 systems · 529,379 served · 4,724 violations
Summit County
214 systems · 467,695 served · 17,163 violations
Lucas County
46 systems · 433,198 served · 3,569 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Clark County? ▼
Clark County has 9,196 total drinking water violations across 92 water systems, of which 1,614 are health-based violations. 96.7% of systems have at least one violation.
How many people get water from Clark County systems? ▼
Water systems in Clark County serve approximately 106,745 people through 92 public water systems.
Has PFAS been detected in Clark County water? ▼
Of 5 water systems tested for PFAS in Clark County, 1 had PFAS detected (20.0% detection rate).
What types of water sources supply Clark County? ▼
Water systems in Clark County use GW (50 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. 17.6% of Clark 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.