PlainWater
Counties → Iowa

Dallas County, Iowa

Water Systems
22
Population Served
73,706
Total Violations
1,211
212 health-based
PFAS Detected
4
of 5 tested

Violation Analysis

95.5%
Systems with Violations
55.0
Avg Violations per System
17.5%
Health-Based Violations

Water Source Types

GW
15 systems (68%)
SW
7 systems (32%)

PFAS Contamination

5
Systems Tested
4
PFAS Detected
80.0%
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

Dallas Iowa 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
Waukee Water Supply 31,823 67 Clean
Xenia RWD (Des Moines) 12,860 19 Clean
Perry Municipal Water Works 7,836 194 Clean
Adel Municipal Water Works 6,461 68 Clean
Xenia RWD (Woodward) 3,465 98 Clean
Dallas Center Water Supply 1,901 7 -
Granger Muni Water Supply 1,654 40 -
Woodward Water Supply 1,346 52 -
Van Meter Municipal Water Work 1,074 29 -
DE Soto Water Supply 960 95 -
Midwest Country Estates 820 0 -
Redfield Water Works 744 53 -
Dexter Water Supply 693 43 -
Fox Creek Benefitted Wtr. District 553 40 -
Minburn Waterworks 325 45 -
Dmww-Greenbrier Estates 300 46 -
River Oaks Development 215 76 -
Wildwood Water Corporation 170 9 -
West Grand Golf 157 17 -
Beach Girls Bar 155 82 -
Dawson Water Works 116 116 -
Deer Hunters Run 78 15 -

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 Dallas County? ▼
Dallas County has 1,211 total drinking water violations across 22 water systems, of which 212 are health-based violations. 95.5% of systems have at least one violation.
How many people get water from Dallas County systems? ▼
Water systems in Dallas County serve approximately 73,706 people through 22 public water systems.
Has PFAS been detected in Dallas County water? ▼
Of 5 water systems tested for PFAS in Dallas County, 4 had PFAS detected (80.0% detection rate).
What types of water sources supply Dallas County? ▼
Water systems in Dallas County use GW (15 systems), SW (7 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. 17.5% of Dallas 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.