PlainWater
Counties → Iowa

Marion County, Iowa

Water Systems
14
Population Served
30,305
Total Violations
760
55 health-based
PFAS Detected
4
of 4 tested

Violation Analysis

85.7%
Systems with Violations
54.3
Avg Violations per System
7.2%
Health-Based Violations

Water Source Types

GW
14 systems (100%)

PFAS Contamination

4
Systems Tested
4
PFAS Detected
100.0%
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

Marion Iowa water systems by violation status, EPA SDWIS records.

No violations on record (2) One or more violations (12)

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
Pella Water Works Department 11,052 418 Clean
Knoxville Water Works 8,400 20 Clean
Marion Co. Rural Water District 5,687 15 Clean
Pleasantville Water Works 1,676 15 -
Melcher-Dallas Water Supply 1,213 37 Clean
Irua - Pershing Utilities 488 16 -
Bussey Water Supply 427 104 -
Wheel Estates Mhc 315 0 -
Colonial Terrace MHP LLC 250 0 -
Sunrise Mill 237 12 -
Harvey Water Works 236 32 -
Southshore Heights 138 2 -
Vista Village Mhc 110 4 -
Swan Water Works 76 85 -

Other Counties in Iowa

Polk County
38 systems · 552,627 served · 1,563 violations
Linn County
83 systems · 224,711 served · 8,540 violations
Scott County
77 systems · 178,285 served · 5,956 violations
Johnson County
125 systems · 167,742 served · 10,912 violations
Black Hawk County
19 systems · 161,225 served · 824 violations
Story County
21 systems · 121,108 served · 1,299 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Marion County? ▼
Marion County has 760 total drinking water violations across 14 water systems, of which 55 are health-based violations. 85.7% of systems have at least one violation.
How many people get water from Marion County systems? ▼
Water systems in Marion County serve approximately 30,305 people through 14 public water systems.
Has PFAS been detected in Marion County water? ▼
Of 4 water systems tested for PFAS in Marion County, 4 had PFAS detected (100.0% detection rate).
What types of water sources supply Marion County? ▼
Water systems in Marion County use GW (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. 7.2% of Marion 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.