PlainWater
Counties → Oregon

Wallowa County, Oregon

Water Systems
10
Population Served
5,391
Total Violations
1,150
79 health-based
PFAS Detected
0
of 0 tested

Violation Analysis

100.0%
Systems with Violations
115.0
Avg Violations per System
6.9%
Health-Based Violations

Water Source Types

GW
8 systems (80%)
SW
2 systems (20%)

Compliance Snapshot

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

No violations on record (0) One or more violations (10)

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
Enterprise, City Of 2,107 38 -
Joseph, City Of 1,182 99 -
Wallowa, City Of 840 47 -
Lostine, City Of 350 131 -
Wallowa Lake Co Service Dist 350 124 -
Wallowa Lake Tramway 300 69 -
Lakeshore Wtr & Develop Co-Op 165 226 -
Mountain View Motel & RV Park 40 122 -
Troy Resort - Wenaha Bar & Grill 32 264 -
Oprd Minam Rec Area-North 25 30 -

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 Wallowa County? ▼
Wallowa County has 1,150 total drinking water violations across 10 water systems, of which 79 are health-based violations. 100.0% of systems have at least one violation.
How many people get water from Wallowa County systems? ▼
Water systems in Wallowa County serve approximately 5,391 people through 10 public water systems.
Has PFAS been detected in Wallowa County water? ▼
No PFAS testing data is available for water systems in Wallowa County.
What types of water sources supply Wallowa County? ▼
Water systems in Wallowa County use GW (8 systems), SW (2 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. 6.9% of Wallowa 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.