PlainWater
Counties → Washington

Island County, Washington

Water Systems
308
Population Served
104,049
Total Violations
25,141
1,522 health-based
PFAS Detected
1
of 5 tested

Violation Analysis

97.7%
Systems with Violations
81.6
Avg Violations per System
6.1%
Health-Based Violations

Water Source Types

GW
47 systems (15%)
SW
3 systems (1%)

PFAS Contamination

5
Systems Tested
1
PFAS Detected
20.0%
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

Island 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
Oak Harbor City Of 23,767 13 Clean
Naval Air Station/Whidbey Island 16,595 10 Clean
Coupeville Town Of 4,077 104 Detected
Camano Water Association 2,592 15 -
Clinton Water District 1,980 17 -
Camano Island State Park 1,718 24 -
Maxwelton Water System 1,700 38 -
Fort Ebey State Park 1,443 21 -
Langley City Of 1,416 8 -
Harbor Hills Community Water System 1,373 782 -
Freeland Water and Sewer District 1,264 91 -
Cama Beach State Park 1,210 12 -
South Whidbey State Park 1,203 5 -
W&b Waterworks 1 1,112 1,660 -
Camano Co-Op Water & Power Co 1,071 19 -
Bayview Beach Water District 1,035 34 -
Scatchet Head Water District 900 27 -
Rolling Hills-Glencairn 872 46 -
Admirals Cove Water District 870 51 -
Camaloch Association 825 16 -
Hillcrest Village Water Co Inc 770 109 -
Northgate Terrace Community Club 750 39 -
Lost Lake Property Owners Assn 736 49 Clean
Vistaire Water System 647 978 -
Mecca Community Association 619 210 -
Camano Vista Water District 591 230 -
North Whidbey Water District 568 14 -
Sandy Hook Yacht Club Estates 540 20 -
Madrona Beach Comm Water System 539 41 -
Sunvista Sunlight Beach HOA 500 61 -
Sea View Water LLC 496 32 -
Lagoon Point Water District 495 92 -
Saratoga Water District 477 23 -
Penn Cove Water and Sewer District 460 37 -
Dugualla Community Inc 459 6 -
Combined Water System 435 62 -
Saratoga Beach Owners Assn 425 10 -
Silver Lake Water 425 9 -
Crosswoods Water Company 420 9 -
Whidbey West Water Assoc. 415 111 -
Sierra Country Club 400 15 -
Crockett Lake Water District 325 47 -
Rocky Point Community Club 320 20 -
Swantown Water District 318 41 -
Driftwood Heights Association 311 23 -
Beachcomber H2o Co 310 645 -
Camano Laguna Vista Water Assoc 310 54 -
Parkwood Manor MHP 301 39 -
Kens Korner 300 13 -
Mariners Cove Beach Club Inc 300 26 -

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 Island County? ▼
Island County has 25,141 total drinking water violations across 308 water systems, of which 1,522 are health-based violations. 97.7% of systems have at least one violation.
How many people get water from Island County systems? ▼
Water systems in Island County serve approximately 104,049 people through 308 public water systems.
Has PFAS been detected in Island County water? ▼
Of 5 water systems tested for PFAS in Island County, 1 had PFAS detected (20.0% detection rate).
What types of water sources supply Island County? ▼
Water systems in Island County use GW (47 systems), SW (3 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. 6.1% of Island 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.