PlainWater
Counties → Ohio

Montgomery County, Ohio

Water Systems
74
Population Served
529,379
Total Violations
4,724
1,071 health-based
PFAS Detected
10
of 16 tested

Violation Analysis

91.9%
Systems with Violations
63.8
Avg Violations per System
22.7%
Health-Based Violations

Water Source Types

GW
36 systems (49%)
SW
14 systems (19%)

PFAS Contamination

16
Systems Tested
10
PFAS Detected
62.5%
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

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

No violations on record (2) One or more violations (48)

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
Montgomery County Water Services 1 PWS 150,207 33 Detected
Dayton Public Water System 141,407 46 Detected
Montgomery County Water Services 2 PWS 83,033 32 Detected
Huber Heights Public Water System 43,439 39 Clean
Miamisburg City PWS 19,790 8 Clean
Englewood City PWS 13,463 12 Clean
West Carrollton City PWS 12,910 7 Clean
Oakwood City PWS 9,572 2 Detected
Trotwood City PWS 9,000 58 Detected
Union City PWS 7,000 35 Detected
Brookville Municipality PWS 5,923 54 Detected
Germantown City PWS 5,796 371 Clean
Jefferson Regional Water Authority 4,750 190 Detected
New Lebanon Village PWS 3,995 48 Clean
Kettering Health Main Campus 3,946 4 -
Dayton Vamc Water Treatment Plant-Bld330 3,216 12 -
Grandview Medical Center PWS 1,850 8 Detected
Oakwood Village MHP 1,500 23 -
Farmersville Village PWS 1,009 84 -
Kettering Health Miamisburg 702 8 -
Kettering Health Washington Twp 596 8 -
Phillipsburg Village PWS 490 83 -
Miami Valley Hospital Main PWS 404 0 -
Voyager Village MHP 400 222 -
The Ridge Church 400 7 -
Farmersville/Jackson Twp Rec Comm Ctr 250 28 -
Brookville Lake Estates 211 159 -
Aullwood Audubon Nature Center PWS 200 86 -
Rip Rap Roadhouse PWS 200 130 -
Melody 49 Drive-IN 180 43 -
Lake of the Woods 3 Clubhouse 160 44 -
Brantwood Baptist Church PWS 150 48 -
Ignited Church 150 16 -
Canopy Creek Farm LLC PWS 150 0 -
Buckhorn Tavern 145 40 -
Quarry Lakes MHP LLC 141 105 -
United Christian Church PWS 130 51 -
Salem Church of the Brethren PWS 125 89 -
Fair Valley Country Club 125 115 -
Dayton VA Bldg 410 125 11 Detected
Dayton KOA Holiday PWS 100 13 -
Plainview Open Bible Church 100 147 -
First Grace Brethren Church 100 159 -
Spitfire 100 38 -
Clayton Park (Hardscrabble Ball Park) 100 41 -
Germantown Metropark Nature Center 100 100 -
Melody Pool 100 48 -
Nnck Marathon 100 150 -
Dayton VA Bldg 320 Pod A 95 15 -
Dayton VA Bldg 320 Pod C 85 12 -

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
Summit County
214 systems · 467,695 served · 17,163 violations
Lucas County
46 systems · 433,198 served · 3,569 violations
Butler County
22 systems · 378,755 served · 1,035 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Montgomery County? ▼
Montgomery County has 4,724 total drinking water violations across 74 water systems, of which 1,071 are health-based violations. 91.9% of systems have at least one violation.
How many people get water from Montgomery County systems? ▼
Water systems in Montgomery County serve approximately 529,379 people through 74 public water systems.
Has PFAS been detected in Montgomery County water? ▼
Of 16 water systems tested for PFAS in Montgomery County, 10 had PFAS detected (62.5% detection rate).
What types of water sources supply Montgomery County? ▼
Water systems in Montgomery County use GW (36 systems), SW (14 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. 22.7% of Montgomery 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.