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WAGON WHEEL

PWS ID: WA5392070 · Coupeville, Washington 98239

WAGON WHEEL serves 150 people in Coupeville, Washington using Groundwater water sources. It has 792 recorded EPA violations, including 6 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: WAGON WHEEL

WAGON WHEEL is a private-owned community water system that delivers drinking water to 150 residents in Coupeville, Washington (Island County) through 85 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 792 total violations for this system , of which 6 (1%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 778 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Pentachlorophenol, recorded in 40 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Washington, EPA tracks 4,557 public water systems serving 9,736,844 people, with 314,648 cumulative violations and 20,590 health-based violations on record. About 92% of systems in the state carry at least one violation, and state-wide the average per system is 69 violations. WAGON WHEEL's 792 violations sit above the Washington average. Statewide, 98 of 247 UCMR5-tested systems have reported PFAS detections (39.7%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
150
Total Violations
792
Health-Based Violations
6
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
85
County
Island
School/Daycare
No
MCL Violations
6
Monitoring Violations
778
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Pentachlorophenol MR 40 2010
Dalapon MR 21 2010
Dinoseb MR 21 2010
2,4,5-TP MR 21 2010
Endrin MR 21 2010
Methoxychlor MR 21 2010
Toxaphene MR 21 2010
Di(2-ethylhexyl) adipate MR 21 2010
Simazine MR 21 2010
Di(2-ethylhexyl) phthalate MR 21 2010
Heptachlor epoxide MR 21 2010
Benzo(a)pyrene MR 21 2010
BHC-GAMMA MR 21 2010
LASSO MR 21 2010
Heptachlor MR 21 2010
Atrazine MR 21 2010
HEXACHLOROBENZENE MR 21 2010
Hexachlorocyclopentadiene MR 21 2010
Chlordane MR 21 2010
Picloram MR 21 2010
Coliform (TCR) MR 20 2014
Aldicarb sulfone MR 13 2008
Carbofuran MR 13 2008
Aldicarb MR 13 2008
Aldicarb sulfoxide MR 13 2008
OXAMYL MR 13 2008
Nitrate MR 13 2022
1,2,4-Trichlorobenzene MR 10 2010
DICHLOROMETHANE MR 10 2010
o-Dichlorobenzene MR 10 2010

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for WAGON WHEEL.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID WA5392070 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Washington Drinking Water Authority

Washington State Department of Health — Office of Drinking Water is the primacy agency that licenses and inspects WAGON WHEEL under EPA-delegated authority.

Open WA regulator portal

Source: Washington State Department of Health — Office of Drinking Water

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2022 Nitrate MR 13 SDWIS / WA5392070 / 1040
2021 TTHM MR 1 SDWIS / WA5392070 / 2950
2021 Total Haloacetic Acids (HAA5) MR 1 SDWIS / WA5392070 / 2456
2014 Coliform (TCR) MR 20 SDWIS / WA5392070 / 3100
2013 Lead and Copper Rule MR 4 SDWIS / WA5392070 / 5000
2010 Pentachlorophenol MR 40 SDWIS / WA5392070 / 2326
2010 Dalapon MR 21 SDWIS / WA5392070 / 2031
2010 Dinoseb MR 21 SDWIS / WA5392070 / 2041
2010 2,4,5-TP MR 21 SDWIS / WA5392070 / 2110
2010 Endrin MR 21 SDWIS / WA5392070 / 2005
2010 Methoxychlor MR 21 SDWIS / WA5392070 / 2015
2010 Toxaphene MR 21 SDWIS / WA5392070 / 2020
2010 Di(2-ethylhexyl) adipate MR 21 SDWIS / WA5392070 / 2035
2010 Simazine MR 21 SDWIS / WA5392070 / 2037
2010 Di(2-ethylhexyl) phthalate MR 21 SDWIS / WA5392070 / 2039

How WAGON WHEEL Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric WAGON WHEEL Washington avg Federal benchmark
Total violations 792 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 6 4.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 39.7% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 150 2,137 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 4,557 regulated public water systems in Washington.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is WAGON WHEEL water safe to drink? ▼
WAGON WHEEL (PWS ID: WA5392070) has 792 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 150 people using Groundwater sources.
How many people does WAGON WHEEL serve? ▼
WAGON WHEEL serves 150 people in Coupeville, Washington. It is a Private-owned system using Groundwater water sources with 85 service connections.
What type of violations does WAGON WHEEL have? ▼
WAGON WHEEL has 792 total violations: 6 health-based violations (MCL exceedances or treatment failures), 778 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in WAGON WHEEL water? ▼
No PFAS testing data is available for WAGON WHEEL under the EPA's UCMR5 monitoring program.
What water source does WAGON WHEEL use? ▼
WAGON WHEEL uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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