PlainWater
Counties → Missouri

Montgomery County, Missouri

Water Systems
22
Population Served
11,865
Total Violations
2,739
1,243 health-based
PFAS Detected
0
of 1 tested

Violation Analysis

95.5%
Systems with Violations
124.5
Avg Violations per System
45.4%
Health-Based Violations

Water Source Types

GW
21 systems (95%)
SW
1 system (5%)

PFAS Contamination

1
Systems Tested
0
PFAS Detected
0.0%
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

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

No violations on record (1) One or more violations (21)

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 Co PWSD 1 3,850 82 Clean
Montgomery City PWS 2,811 40 -
Wellsville PWS 1,210 651 -
New Florence PWS 769 73 -
Jonesburg PWS 768 18 -
Bellflower PWS 350 85 -
Montgomery County PWSD 1 Jonesburg 300 27 -
High Hill PWS 300 24 -
Reds Gas 200 465 -
Graham Cave State Park Campground 200 26 -
J D Streett 170 200 65 -
Middletown PWS 167 270 -
Rhineland PWS 150 171 -
New Florence Wood Products 150 80 -
Roy L Utilities 150 125 -
Endless Summer Winery 100 0 -
Loutre Shore Country Club 50 355 -
Hickory Ridge Campground 40 63 -
Loutre Market 30 18 -
Graham Cave State Park Office 25 12 -
Lazy Day Campground 25 51 -
Montgomery County PWSD 1 Montgomery City 20 38 -

Other Counties in Missouri

St. Louis County
23 systems · 1,145,619 served · 1,825 violations
Cass County
31 systems · 625,744 served · 1,771 violations
Jackson County
23 systems · 405,266 served · 559 violations
St. Charles County
54 systems · 310,776 served · 2,706 violations
St. Louis city County
1 systems · 304,709 served · 27 violations
Greene County
82 systems · 265,439 served · 7,132 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Montgomery County? ▼
Montgomery County has 2,739 total drinking water violations across 22 water systems, of which 1,243 are health-based violations. 95.5% of systems have at least one violation.
How many people get water from Montgomery County systems? ▼
Water systems in Montgomery County serve approximately 11,865 people through 22 public water systems.
Has PFAS been detected in Montgomery County water? ▼
Of 1 water systems tested for PFAS in Montgomery County, 0 had PFAS detected (0.0% detection rate).
What types of water sources supply Montgomery County? ▼
Water systems in Montgomery County use GW (21 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. 45.4% 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.