PlainWater
Counties → Washington

Adams County, Washington

Water Systems
48
Population Served
25,650
Total Violations
3,951
360 health-based
PFAS Detected
1
of 1 tested

Violation Analysis

93.8%
Systems with Violations
82.3
Avg Violations per System
9.1%
Health-Based Violations

Water Source Types

GW
47 systems (98%)
Unknown
1 system (2%)

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

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

No violations on record (3) One or more violations (45)

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
Othello Water Department 8,755 159 Clean
Hatton Coulee Rest Area 3,882 8 -
Schrag Eb/Wb Rest Areas 3,734 51 -
Ritzville Water Department 1,725 166 -
Lind Town Of 903 44 -
Adams County Water Dist #1 870 25 -
Hgh Inc Water System 613 80 -
Adams County Fair 503 26 -
Othello Manor LLC 400 91 -
Golden Plains MHP #1 360 212 -
Washtucna Water Department 250 76 -
Summerset West Water Association 240 38 -
Saddle Mountain Water Assoc. 219 40 -
Bruce Water System 210 98 -
Othello Country Club Water Assn 208 42 -
Radar Community LLC 200 46 -
Iglesia Bethel 197 27 -
Bird Dog Family Ltd Partnership II 186 20 -
Warden Hutterian Brethren 1 171 25 -
Sportsman Trailer Park 151 172 -
Bayer Western Production Co. 124 4 -
Stahl Hutterian Brethren 122 12 -
Hatton Town Of 105 241 -
Sunburst Estates Water Assn 100 74 -
Meadow Lane Water Assn 98 44 -
Schaake Rd Housing 96 2 -
Radar 2 Farmworker Housing 96 4 -
Fairview Domestic Water Assn 89 67 -
HI Lo Homeowners Assn 87 52 -
KTW Orchards 81 0 -
West Side Mobile Court 80 75 -
SECT 11 DIV 1 Ridgeview Water Assn 79 180 -
Schoonover Hutterian Brethren 73 95 -
Country Cousins 66 2 -
National Food NW - Lind 61 111 -
Rainier Tracts Water Assn 61 193 -
Basin View Water Association 60 63 -
Highland Estates Water System 53 31 -
SM West Farmworker Housing 52 0 -
Klingeman Well 42 700 -
Big B Truck Stop 41 51 -
Sunset Acres Water Association 40 20 -
South Othello Water Users 35 1 -
Radar Water Association 34 34 -
Crestview Water Association 31 76 -
Country Lane East 27 355 -
Monsanto Cunningham Rd 25 0 -
Four Seasons Campground 15 18 -

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 Adams County? ▼
Adams County has 3,951 total drinking water violations across 48 water systems, of which 360 are health-based violations. 93.8% of systems have at least one violation.
How many people get water from Adams County systems? ▼
Water systems in Adams County serve approximately 25,650 people through 48 public water systems.
Has PFAS been detected in Adams County water? ▼
Of 1 water systems tested for PFAS in Adams County, 1 had PFAS detected (100.0% detection rate).
What types of water sources supply Adams County? ▼
Water systems in Adams County use GW (47 systems), Unknown (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. 9.1% of Adams 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.