PlainWater
Counties → Ohio

Richland County, Ohio

Water Systems
121
Population Served
103,898
Total Violations
6,673
913 health-based
PFAS Detected
3
of 5 tested

Violation Analysis

89.3%
Systems with Violations
55.1
Avg Violations per System
13.7%
Health-Based Violations

Water Source Types

GW
47 systems (39%)
SW
3 systems (2%)

PFAS Contamination

5
Systems Tested
3
PFAS Detected
60.0%
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

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

No violations on record (6) One or more violations (44)

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
Mansfield City 51,000 84 Clean
Shelby City 9,453 189 Detected
Ontario City 6,656 67 Clean
Lexington Village 4,320 162 Clean
Madison Water District 2,050 0 -
Bellville Village 1,918 26 -
Plymouth Village 1,874 38 -
7-Eleven Store # 36177 1,650 15 -
Crestview Local Schools 1,400 74 -
Clear Fork High School 1,178 6 -
Eastview Community Water Association 1,100 12 -
Butler Village 940 36 -
Mansfield Fuel and Food 840 7 -
Aqua Ohio - Mansfield System #01 813 23 -
Aqua Ohio - Mansfield System #07 766 10 -
Madison South Elementary 675 11 -
Lucas Village 620 23 -
Shiloh Village 619 105 -
Aqua Ohio - Mansfield System #02 588 52 -
Walnut Hills Water Association 583 17 -
Crestwood Hills C and R Association 564 2 -
Aqua Ohio - Mansfield System #03 525 60 -
Heatherwood Terrace Townhouses 435 53 -
Dollar General Store - Mansfield #324 415 61 -
Aqua Ohio - Mansfield System #06 412 9 -
Sacred Heart School 398 170 -
Mifflin Elementary School 352 37 -
Ontario Christian Fellowship 350 0 -
Impact Worship Center Mansfield 335 0 -
Clearfork MHP 318 80 -
Expressview Comm Water Association 300 113 -
Odot Rest Area 3-34 West 300 0 -
Journey Life Center Church & College 285 54 -
Aqua Ohio - Mansfield System #11 280 107 -
Odot Rest Area 3-33 East 275 0 -
Diamond Hill Cathedral Church 265 4 -
Shelly Acres Water Association 254 104 -
Snow Trails No 1 - Rental 235 21 -
Hidden Hollow Camp 232 0 -
Odnr - Malabar Farm State Park Inn 230 19 -
Lexview Allotment 225 98 -
Butler Mohican KOA Campground 213 94 -
Oakwood Crossing MHP 200 103 -
Willow Park Water Association 200 57 -
Mifflin Care Center 200 56 -
Dollar General Store - Greenwich #21824 194 4 -
Colonial Hills MHP 185 321 -
Odnr - Malabar Farm State Park Big House 180 11 -
Heatherwood Community Water Association 177 173 -
Church of God - Shelby 175 11 -

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 Richland County? ▼
Richland County has 6,673 total drinking water violations across 121 water systems, of which 913 are health-based violations. 89.3% of systems have at least one violation.
How many people get water from Richland County systems? ▼
Water systems in Richland County serve approximately 103,898 people through 121 public water systems.
Has PFAS been detected in Richland County water? ▼
Of 5 water systems tested for PFAS in Richland County, 3 had PFAS detected (60.0% detection rate).
What types of water sources supply Richland County? ▼
Water systems in Richland County use GW (47 systems), SW (3 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. 13.7% of Richland 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.