PlainWater
Counties → Ohio

Miami County, Ohio

Water Systems
57
Population Served
94,299
Total Violations
4,277
916 health-based
PFAS Detected
1
of 5 tested

Violation Analysis

91.2%
Systems with Violations
75.0
Avg Violations per System
21.4%
Health-Based Violations

Water Source Types

GW
49 systems (86%)
SW
1 system (2%)

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

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

No violations on record (3) One or more violations (47)

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
Troy City PWS 26,305 5 Clean
Nawa 24,766 11 Clean
Piqua City PWS 20,354 41 Detected
West Milton Village PWS 4,890 330 Clean
Miami Co-Camp Troy PWS 3,742 20 Clean
Covington Village PWS 2,718 34 -
Miami Co-N25a Extension 2,367 11 -
Miami East Schools PWS 1,430 161 -
Pleasant Hill Village PWS 1,226 34 -
Miami Co-Deer Cliff Run PWS 526 15 -
Bethel Township Water System PWS 521 7 -
Laura Village PWS 487 192 -
Fletcher Village PWS 461 38 -
Stillwater Prairie Reserve PWS 250 3 -
Dayton Ohio Fm Group 219 10 -
Splash Club of Troy 200 80 -
Homestead Golf Course 200 215 -
Rolling Hills Girl Scout Camp 200 196 -
Garbrys Big Woods Reserve Wetland PWS 200 12 -
Charleston Falls Preserve - Restroom PWS 200 0 -
Monroe Township Water & Sewer Dist PWS 198 5 -
Old German Baptist Brethren Church PWS 180 0 -
Kingdom Hall of Jehovahs Witnesses-Troy 157 30 -
Indian Hills 4H Camp PWS 151 127 -
St. Teresa of Infant Jesus PWS 150 27 -
First Baptist Church of New Carlisle-Day 145 15 -
West Charleston Church of the Brethren 145 10 -
Brukner Nature Center 135 20 -
Poor Farmers Camp 100 10 -
Amvets Post 88 100 11 -
Fulton Farm PWS 100 27 -
VFW 6557 PWS 100 7 -
Olde English Outfitters 95 0 -
Stillwater Community Church PWS 90 10 -
Piqua Christian Church 85 63 -
36 Skate Club 80 21 -
Four Winds Gospel Assembly 75 79 -
The Barn Ministries Inc 75 13 -
Elizabeth Township Community Center 71 479 -
Northwoods Mhc 70 485 -
Country Meadows Condo. 65 20 -
Aileron 65 7 -
A and R Reck Mobile Home Park 50 469 -
Troy Fish and Game Club 50 18 -
Ginghamsburg UMC South PWS 50 141 -
Homestead Golf Course Restroom PWS 50 98 -
Friendship Community Church 45 30 -
Holly's Cafe & Carry Out 45 54 -
Seventh Day Adventist School 40 93 -
Angstrom Metal Stampings, LLC 40 367 -

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 Miami County? ▼
Miami County has 4,277 total drinking water violations across 57 water systems, of which 916 are health-based violations. 91.2% of systems have at least one violation.
How many people get water from Miami County systems? ▼
Water systems in Miami County serve approximately 94,299 people through 57 public water systems.
Has PFAS been detected in Miami County water? ▼
Of 5 water systems tested for PFAS in Miami County, 1 had PFAS detected (20.0% detection rate).
What types of water sources supply Miami County? ▼
Water systems in Miami County use GW (49 systems), SW (1 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. 21.4% of Miami 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.