PlainWater
Counties → Iowa

Warren County, Iowa

Water Systems
12
Population Served
57,255
Total Violations
571
140 health-based
PFAS Detected
4
of 4 tested

Violation Analysis

100.0%
Systems with Violations
47.6
Avg Violations per System
24.5%
Health-Based Violations

Water Source Types

SW
8 systems (67%)
GW
4 systems (33%)

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

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

No violations on record (0) 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
Warren Water District 20,095 34 Clean
Indianola Water Supply 15,833 45 Clean
Norwalk Water Supply 14,334 55 Clean
Carlisle Water Supply 4,170 67 Detected
Milo Public Water Supply 788 115 -
New Virginia Water Supply 498 64 -
Martensdale Water Supply 421 23 -
Lacona Water Supply 361 30 -
North American Mobile Home Park 235 4 -
Wilshire Hills Mhc 216 5 -
Hartford Mhc LLC 183 4 -
Saint Marys Water Corporation 121 125 -

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 Warren County? ▼
Warren County has 571 total drinking water violations across 12 water systems, of which 140 are health-based violations. 100.0% of systems have at least one violation.
How many people get water from Warren County systems? ▼
Water systems in Warren County serve approximately 57,255 people through 12 public water systems.
Has PFAS been detected in Warren County water? ▼
Of 4 water systems tested for PFAS in Warren County, 4 had PFAS detected (100.0% detection rate).
What types of water sources supply Warren County? ▼
Water systems in Warren County use SW (8 systems), GW (4 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. 24.5% of Warren 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.