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Counties → North Dakota

Cass County, North Dakota

Water Systems
27
Population Served
176,764
Total Violations
915
180 health-based
PFAS Detected
5
of 5 tested

Violation Analysis

92.6%
Systems with Violations
33.9
Avg Violations per System
19.7%
Health-Based Violations

Water Source Types

GW
23 systems (85%)
SW
4 systems (15%)

PFAS Contamination

5
Systems Tested
5
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

Cass North Dakota water systems by violation status, EPA SDWIS records.

No violations on record (2) One or more violations (25)

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
Fargo City Of 120,762 30 Clean
West Fargo City Of 34,858 3 Clean
Cass Rural Water District Fargo 4,242 0 Detected
Cass Rural Water District-Phase I 3,658 3 Clean
Casselton City Of 2,513 11 -
Cass Rural Water District-Phase II 1,700 0 Clean
Cass Rural Water District-Phase III 1,682 3 -
Horace City Of 1,641 40 -
Mapleton City Of 1,320 6 -
Harwood City Of 718 46 -
Kindred City Of 692 10 -
Argusville City Of 475 6 -
Arthur City Of 337 14 -
Oxbow City Of 305 42 -
Hunter City Of 261 38 -
Tower City City Of 253 63 -
Davenport City Of 252 36 -
Page City Of 232 34 -
Buffalo City Of 188 34 -
Grandin City Of 173 72 -
Horseshoe Bend 110 80 -
Amenia City Of 94 46 -
Riverdale Subdivision 88 30 -
Gardner City Of 74 51 -
Fradets Orchard Water System 56 128 -
Country Acres Water Co 50 37 -
Knickerbocker Liquor Locker 30 52 -

Other Counties in North Dakota

Burleigh County
12 systems · 92,574 served · 263 violations
Grand Forks County
9 systems · 69,787 served · 232 violations
Ward County
14 systems · 65,645 served · 589 violations
Williams County
22 systems · 38,366 served · 564 violations
Stark County
8 systems · 36,506 served · 136 violations
Morton County
13 systems · 29,721 served · 464 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Cass County? ▼
Cass County has 915 total drinking water violations across 27 water systems, of which 180 are health-based violations. 92.6% of systems have at least one violation.
How many people get water from Cass County systems? ▼
Water systems in Cass County serve approximately 176,764 people through 27 public water systems.
Has PFAS been detected in Cass County water? ▼
Of 5 water systems tested for PFAS in Cass County, 5 had PFAS detected (100.0% detection rate).
What types of water sources supply Cass County? ▼
Water systems in Cass County use GW (23 systems), SW (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. 19.7% of Cass 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.