PlainWater
Counties → Oregon

Malheur County, Oregon

Water Systems
25
Population Served
22,466
Total Violations
4,518
1,098 health-based
PFAS Detected
1
of 1 tested

Violation Analysis

100.0%
Systems with Violations
180.7
Avg Violations per System
24.3%
Health-Based Violations

Water Source Types

GW
24 systems (96%)
SW
1 system (4%)

PFAS Contamination

1
Systems Tested
1
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

Malheur Oregon water systems by violation status, EPA SDWIS records.

No violations on record (0) 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
Ontario, City Of 14,465 150 Clean
Nyssa, City Of 3,285 194 -
Vale, City Of 1,837 339 -
Huntington Travel Plaza 999 134 -
Fry Foods 280 51 -
Oprd McCormack Cg 250 52 -
Jordan Valley, City Of 175 111 -
Adrian, City Of 159 445 -
Fischers Place MHP 130 353 -
Harper High/Elementary SD 66 117 44 -
Oprd Indian Creek Cg 100 22 -
Willowcreek Elem SD #84 80 77 -
US Silica 69 21 -
Golf MHP 60 954 -
Rome Station 60 51 -
Oasis Cafe & Motel RV 55 173 -
Annex Charter School 50 160 -
Willowcreek Store & Cafe 50 73 -
Bates Motel & Deli 50 28 -
Oasis on the Snake 50 74 -
River Village MHP 40 750 -
Odot Stanton Blvd Facility 30 88 -
Country Campground 25 61 -
Winners Horseshoe - Annex 25 36 -
Spur 95 25 77 -

Other Counties in Oregon

Multnomah County
57 systems · 854,646 served · 4,422 violations
Washington County
96 systems · 597,244 served · 7,314 violations
Clackamas County
231 systems · 385,530 served · 18,114 violations
Marion County
196 systems · 370,079 served · 19,281 violations
Lane County
237 systems · 327,688 served · 16,216 violations
Deschutes County
138 systems · 204,759 served · 5,986 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Malheur County? ▼
Malheur County has 4,518 total drinking water violations across 25 water systems, of which 1,098 are health-based violations. 100.0% of systems have at least one violation.
How many people get water from Malheur County systems? ▼
Water systems in Malheur County serve approximately 22,466 people through 25 public water systems.
Has PFAS been detected in Malheur County water? ▼
Of 1 water systems tested for PFAS in Malheur County, 1 had PFAS detected (100.0% detection rate).
What types of water sources supply Malheur County? ▼
Water systems in Malheur County use GW (24 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. 24.3% of Malheur 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.