PlainWater
Counties → Washington

Whitman County, Washington

Water Systems
33
Population Served
65,902
Total Violations
1,462
243 health-based
PFAS Detected
3
of 3 tested

Violation Analysis

93.9%
Systems with Violations
44.3
Avg Violations per System
16.6%
Health-Based Violations

Water Source Types

GW
33 systems (100%)

PFAS Contamination

3
Systems Tested
3
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

Whitman Washington water systems by violation status, EPA SDWIS records.

No violations on record (2) One or more violations (31)

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
Pullman Water Department City Of 29,690 15 Clean
Washington State University 21,506 27 Clean
Colfax Water Department City Of 3,507 46 Clean
Palouse Water Dept City Of 1,298 45 -
Tekoa City Of 1,076 67 -
Horn School Rest Area 833 4 -
Rosalia Town Of 831 64 -
St John Town Of 800 43 -
Palouse Empire Fairgrounds 733 27 -
Garfield Water Department 694 34 -
Colton Water Department 632 47 -
Albion Water Dept 555 13 -
Oakesdale Town Of 492 86 -
Endicott Water Dept 488 122 -
Evangelical Free Church 404 13 -
Uniontown Water Works 366 74 -
Lacrosse Town Of 297 39 -
Malden Water Dept 215 59 -
Steptoe Water/Sewer District 210 292 -
Kamiak Butte County Park 201 15 -
Farmington Water Dept 165 28 -
Klemgard County Park 157 3 -
Wawawai County Park 154 22 -
Lamont Water System 136 86 -
Wilma Port Of 108 52 -
Garrison Center 60 9 -
Toyota of Pullman 53 2 -
Sunset Mobile Court 51 86 -
Onecho Bible Church 49 16 -
Tula Young Hastings Farm - Wsu 40 4 -
Boyer Park & Marina 37 22 -
Colfax Lds Church 35 0 -
Schad Holdings 29 0 -

Other Counties in Washington

King County
217 systems · 3,193,095 served · 20,636 violations
Pierce County
359 systems · 1,138,508 served · 14,826 violations
Snohomish County
170 systems · 947,238 served · 8,193 violations
Spokane County
164 systems · 621,798 served · 9,829 violations
Clark County
72 systems · 615,931 served · 9,864 violations
Thurston County
322 systems · 395,780 served · 24,330 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Whitman County? ▼
Whitman County has 1,462 total drinking water violations across 33 water systems, of which 243 are health-based violations. 93.9% of systems have at least one violation.
How many people get water from Whitman County systems? ▼
Water systems in Whitman County serve approximately 65,902 people through 33 public water systems.
Has PFAS been detected in Whitman County water? ▼
Of 3 water systems tested for PFAS in Whitman County, 3 had PFAS detected (100.0% detection rate).
What types of water sources supply Whitman County? ▼
Water systems in Whitman County use GW (33 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. 16.6% of Whitman 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.