PlainWater
Counties → Oregon

Benton County, Oregon

Water Systems
48
Population Served
72,210
Total Violations
3,039
499 health-based
PFAS Detected
0
of 3 tested

Violation Analysis

100.0%
Systems with Violations
63.3
Avg Violations per System
16.4%
Health-Based Violations

Water Source Types

GW
44 systems (92%)
SW
4 systems (8%)

PFAS Contamination

3
Systems Tested
0
PFAS Detected
0.0%
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

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

No violations on record (0) One or more violations (48)

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
Corvallis, City Of 61,468 39 Clean
Philomath Public Works 4,670 118 Clean
Adair Village Water System 875 230 Clean
Monroe, City Of 723 245 -
Knoll Terrace Park 452 94 -
Vineyard Mountain Water 325 24 -
Mt View Elementary SD 509J 250 60 -
Kings Valley Charter School 215 106 -
Blodgett Country Store 210 27 -
Alsea County Service District 202 40 -
Childrens Farm Home Campus 200 84 -
Stahlbush Island Farms 200 191 -
Corvallis Waldorf Association 180 41 -
Calvary Corvallis 173 59 -
Fir View Water Company 150 189 -
Muddy Creek Charter School 125 22 -
Blm Alsea Falls Camping 120 22 -
Cascade View Estates 113 94 -
North Corvallis MHP-Well #1 100 71 -
Pub, The 100 14 -
Suburban Christian Church 100 86 -
City Limits 100 20 -
Ridgewood Dist Improv Co 90 48 -
Garland Nursery 90 24 -
Pioneer Village Water Company 80 42 -
Consumers Power Inc 60 33 -
Philomath Scout Lodge 60 1 -
Beazell Memorial Forest 54 7 -
Student Transportation of America 53 51 -
Hull-Oakes Lumber Company 51 28 -
Raintree Estates 50 108 -
Little Beavers Preschool #1 50 42 -
Gathering Together Farms 50 11 -
Benton Co Pks Salmonberry Cg 43 34 -
Jackson Creek Water Association 39 50 -
Tennis West Racquet Club 39 40 -
Blodgett Elementary SD 17J 35 22 -
Kammerer Industrial Park WS 32 70 -
Bellfountain Community Church 32 247 -
Patrick Lumber Company 32 1 -
Alpine Tavern 30 84 -
Life Community Church 30 23 -
Hpaulson Livestock and Feed 30 20 -
Camp Alpine Church of Lds 28 30 -
Benton Co Pks Bellfountain Pk 26 19 -
Tunnel Radio of America 25 1 -
Fort Hoskins Park 25 123 -
G3 Sports and Fitness 25 4 -

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 Benton County? ▼
Benton County has 3,039 total drinking water violations across 48 water systems, of which 499 are health-based violations. 100.0% of systems have at least one violation.
How many people get water from Benton County systems? ▼
Water systems in Benton County serve approximately 72,210 people through 48 public water systems.
Has PFAS been detected in Benton County water? ▼
Of 3 water systems tested for PFAS in Benton County, 0 had PFAS detected (0.0% detection rate).
What types of water sources supply Benton County? ▼
Water systems in Benton County use GW (44 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. 16.4% of Benton 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.