PlainWater
Counties → Washington

Grays Harbor County, Washington

Water Systems
88
Population Served
83,246
Total Violations
13,309
271 health-based
PFAS Detected
1
of 7 tested

Violation Analysis

94.3%
Systems with Violations
151.2
Avg Violations per System
2.0%
Health-Based Violations

Water Source Types

GW
46 systems (52%)
SW
4 systems (5%)

PFAS Contamination

7
Systems Tested
1
PFAS Detected
14.3%
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

Grays Harbor Washington water systems by violation status, EPA SDWIS records.

No violations on record (0) One or more violations (50)

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
Aberdeen City Of 17,958 14 Clean
Hoquiam Water Department 11,456 10 Clean
Ocean Shores Water Dept 9,347 152 Clean
Elma City Of 6,638 28 Clean
Montesano City Of 5,492 25 Clean
Westport Water Department 5,346 881 Clean
Grays Harbor Co Water Dist 2 5,112 73 Clean
McCleary City Of 2,753 34 -
Pacific Beach/Moclips 2,372 17 -
Cosmopolis Water Department 1,812 62 -
Hogans Corner 1,458 58 -
Oakville City Of 1,325 149 -
Grays Harbor Co Water Dist 1 1,302 294 -
Elma Rest Area 1,122 34 -
Lake Quinault 1,003 1,331 -
Illahee Oyehut 971 26 -
Ocean Breeze Resort 687 24 -
Satsop Business Park 544 5,255 -
Wynoochee Wildwood Park 471 56 -
Ocean Shores Outdoor Club 309 16 -
Griffith Priday State Park 280 8 -
Surfcrest Properties LLC 256 8 -
Greenwood Mobile Home Park 240 482 -
Ocean City 237 1,193 -
Neilton Meadowland WD 8 A 222 184 -
Meadowood Development 220 72 -
Monte View Estates 200 18 -
Malone 181 32 -
Green Lantern Pub 175 17 -
Sea View 170 23 -
Coho Campground 152 17 -
Briggs Nursery 150 34 -
Country Estates 150 55 -
Haven by the Sea 145 27 -
Gold Beach Aviation 134 22 -
Iron Springs Resort 120 22 -
Clarks Restaurant 109 6 -
Humptulips Grocery 105 9 -
Bay City Sausage 104 21 -
South Arbor 101 1 -
Humptulips Grange #730 100 1 -
Forestview Senior Community LLC 92 29 -
Bay City Properties 90 87 -
Ocean Spray Cranberries 90 61 -
Screamin Eagle Campground 86 15 -
Vaughan Pumps 85 450 -
Murphy Elma Veneer 80 28 -
Oceana II East 80 11 -
Paradise Water Assoc 74 335 -
Harbor Mobile Estates 72 288 -

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 Grays Harbor County? ▼
Grays Harbor County has 13,309 total drinking water violations across 88 water systems, of which 271 are health-based violations. 94.3% of systems have at least one violation.
How many people get water from Grays Harbor County systems? ▼
Water systems in Grays Harbor County serve approximately 83,246 people through 88 public water systems.
Has PFAS been detected in Grays Harbor County water? ▼
Of 7 water systems tested for PFAS in Grays Harbor County, 1 had PFAS detected (14.3% detection rate).
What types of water sources supply Grays Harbor County? ▼
Water systems in Grays Harbor County use GW (46 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. 2.0% of Grays Harbor 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.