Coupeville Water Quality
Washington
According to EPA SDWIS, Coupeville, Washington is served by 98 community water systems covering about 23,882 people. The same extract lists 199 health-based violation records, most recently coded 2950 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Coupeville, Washington is delivered through 98 EPA-regulated community water systems serving an estimated 23,882 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 199 violation records across the 98 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 5 distinct EPA contaminant codes: TTHM, Arsenic, Total Haloacetic Acids (HAA5), Nitrate, Revised Total Coliform Rule.
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Washington drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| COUPEVILLE TOWN OF | 4,142 | 0 | Clean |
| CAMANO WATER ASSOCIATION | 2,592 | 0 | Clean |
| SCATCHET HEAD WATER DISTRICT | 900 | 1 | Health |
| CAMALOCH ASSOCIATION | 825 | 0 | Clean |
| NORTHGATE TERRACE COMMUNITY CLUB | 750 | 0 | Clean |
| LOST LAKE PROPERTY OWNERS ASSN | 736 | 0 | Clean |
| WILDERNESS RIDGE COMMUNITY CLUB | 664 | 0 | Clean |
| MECCA COMMUNITY ASSOCIATION | 619 | 0 | Clean |
| CAMANO VISTA WATER DISTRICT | 591 | 0 | Clean |
| SUNVISTA SUNLIGHT BEACH HOA | 500 | 0 | Clean |
| SARATOGA WATER DISTRICT | 477 | 31 | Health |
| COMBINED WATER SYSTEM | 435 | 0 | Clean |
| CROSSWOODS WATER SYSTEM | 420 | 0 | Clean |
| WHIDBEY WEST WATER ASSOC. | 415 | 12 | Health |
| SIERRA COUNTRY CLUB | 400 | 26 | Health |
| ROCKY POINT COMMUNITY CLUB | 320 | 0 | Clean |
| PARKWOOD MANOR MHP | 301 | 0 | Clean |
| MARINERS COVE BEACH CLUB INC | 300 | 0 | Clean |
| DRIFTWOOD HEIGHTS ASSOCIATION | 298 | 0 | Clean |
| CAMANO HILLS WATER COMPANY INC | 286 | 0 | Clean |
| GOSS LAKE PARK COMMUNITY | 285 | 3 | Health |
| WEST RIDGE WATER SYSTEM | 275 | 0 | Clean |
| WHIDBEY SHORES WATER SYSTEM | 262 | 0 | Clean |
| SHIRONA WATER SYSTEM | 243 | 1 | Health |
| HIDE-AWAY WATER COMPANY INC | 240 | 3 | Health |
| COUNTRY PLACE MOBILE HOME PARK | 200 | 0 | Clean |
| POLNELL SHORES COMM ORG INC | 200 | 0 | Clean |
| PINE TERRACE WATER ASSOCIATION | 181 | 2 | Health |
| MEADOW RIDGE | 175 | 0 | Clean |
| Mutiny Bay Park Water Association | 156 | 0 | Clean |
| LIGHTHOUSE SHORES | 152 | 0 | Clean |
| RHODENA BEACH WATER DISTRICT | 152 | 0 | Clean |
| FIRCREST COMMUNITY WATER SYSTEM | 150 | 0 | Clean |
| SUNLIGHT SHORES COUNTRY CLUB | 150 | 0 | Clean |
| POSSESSION SHORES INC | 150 | 0 | Clean |
| WAGON WHEEL | 150 | 0 | Clean |
| THUNDER RIDGE WATER SYSTEM | 145 | 0 | Clean |
| RACE LAGOON WATER ASSOCIATION | 141 | 0 | Clean |
| RACE LAGOON HEIGHTS ASSOCIATION | 141 | 0 | Clean |
| VALLEY HIGH PARK | 141 | 0 | Clean |
| LAKEVIEW TERRACE | 140 | 0 | Clean |
| EAGLE VALLEY WATER SYSTEM | 135 | 0 | Clean |
| LAKE GROVE WATER ASSOCIATION | 134 | 0 | Clean |
| TERONDA WEST COUNTRY CLUB ASSN. | 127 | 0 | Clean |
| Whispering Pines Homeowners Coop | 116 | 0 | Clean |
| ELGERWOOD MAINTENANCE ASSOCIATION | 112 | 0 | Clean |
| BUSH POINT TRAC PARK | 111 | 0 | Clean |
| IDLEWOOD COMMUNITY | 111 | 0 | Clean |
| HOLMES HARBOR WATER CO | 110 | 0 | Clean |
| SKYLINE WEST COMMUNITY CLUB | 109 | 0 | Clean |
| WAYNES RIDGE WATER ASSOC | 108 | 0 | Clean |
| WOODLAND ESTATES | 106 | 0 | Clean |
| FAIRWAY ESTATES INC | 100 | 0 | Clean |
| Northwest Water | 99 | 0 | Clean |
| CORNET BAY HEIGHTS WATER ASSN INC | 99 | 0 | Clean |
| PHEASANT FARM ACRES | 95 | 0 | Clean |
| SUNSET DEVELOPMENT COMM CLUB | 92 | 0 | Clean |
| AHEARN WATER SYSTEM | 91 | 0 | Clean |
| BEACHWOOD WATER COMPANY | 90 | 22 | Health |
| SUMMERLAND | 85 | 5 | Health |
| FORT KNOX MOBILE HOME PARK | 79 | 0 | Clean |
| DEVRIES ROAD COMMUNITY ASSN | 76 | 45 | Health |
| EASTGATE | 76 | 18 | Health |
| LAKEWOOD WEST WATER ASSN. | 75 | 0 | Clean |
| SUNSET WEST | 75 | 3 | Health |
| DAVIS LANDING WATER SYSTEM | 74 | 0 | Clean |
| SILVER LAKE RD ACREAGE TRACTS | 73 | 0 | Clean |
| MABANA SHORES ASSOCIATION | 68 | 0 | Clean |
| KINETH CLAIM COMMUNITY WATER ASSOC. | 65 | 0 | Clean |
| FIR GROVE MOBILE PARK | 65 | 0 | Clean |
| POLNELL HEIGHTS WATER ASSOCIATION | 65 | 0 | Clean |
| CRESCENT ACRES WATER ASSOCIATION | 64 | 0 | Clean |
| WHIDBEY HIGHLANDS WATER ASSOC | 62 | 0 | Clean |
| SILVER SPRINGS ESTATES COMM ASSN | 61 | 0 | Clean |
| SUBURBAN MOBILE PARK | 60 | 3 | Health |
| ADAMS RD COMMUNITY ASSN | 59 | 0 | Clean |
| Sky Meadows Community Assoc. | 58 | 0 | Clean |
| NORCLIFFE WATER ASSOCIATION | 57 | 0 | Clean |
| SLEEPER ACRES COMM. ASSOC. INC. | 56 | 0 | Clean |
| USELESS BAY SHORES | 56 | 0 | Clean |
| SHANGRI-LA SHORES INC | 56 | 0 | Clean |
| DEER LAKE ESTATES | 55 | 0 | Clean |
| West View Apartments Water System | 54 | 0 | Clean |
| PONDILLA ESTATES COMMUNITY ASSOC | 52 | 0 | Clean |
| Bets Water System | 50 | 0 | Clean |
| TAYLOR ROAD WATER SYSTEM | 50 | 4 | Health |
| POLNELL LANDING WATER ASSOC. | 41 | 0 | Clean |
| WOODGLEN PRD WATER SYSTEM | 40 | 13 | Health |
| WEST BEACH ROAD ASSOCIATION | 37 | 0 | Clean |
| DOYLE WATER ASSOCIATION | 36 | 0 | Clean |
| ROCKAWAY BEACH COMMUNITY ASSN | 35 | 0 | Clean |
| MAPLE HILL PARK | 35 | 4 | Health |
| LEISURE ACRES WATER ASSOCIATION | 35 | 0 | Clean |
| WILDES GROVE COMMUNITY WATER SYS | 33 | 0 | Clean |
| GEORGETOWN WATER ASSOCIATION | 32 | 3 | Health |
| CARE FREE ACRES | 30 | 0 | Clean |
| HILLCREST HOMESTEAD TRACTS WATER | 29 | 0 | Clean |
| Eaglecrest Water & Road Association | 28 | 0 | Clean |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| SHIRONA WATER SYSTEM | TTHM | 2025-10-01 |
| EASTGATE | Arsenic | 2025-10-01 |
| DEVRIES ROAD COMMUNITY ASSN | TTHM | 2025-10-01 |
| DEVRIES ROAD COMMUNITY ASSN | Total Haloacetic Acids (HAA5) | 2025-10-01 |
| EASTGATE | Arsenic | 2025-07-01 |
| DEVRIES ROAD COMMUNITY ASSN | TTHM | 2025-07-01 |
| DEVRIES ROAD COMMUNITY ASSN | Total Haloacetic Acids (HAA5) | 2025-07-01 |
| MAPLE HILL PARK | Nitrate | 2025-07-01 |
| PINE TERRACE WATER ASSOCIATION | TTHM | 2025-04-01 |
| PINE TERRACE WATER ASSOCIATION | TTHM | 2025-04-01 |
| EASTGATE | Arsenic | 2025-04-01 |
| DEVRIES ROAD COMMUNITY ASSN | TTHM | 2025-04-01 |
| DEVRIES ROAD COMMUNITY ASSN | Total Haloacetic Acids (HAA5) | 2025-04-01 |
| EASTGATE | Arsenic | 2025-01-01 |
| DEVRIES ROAD COMMUNITY ASSN | TTHM | 2025-01-01 |
| DEVRIES ROAD COMMUNITY ASSN | Total Haloacetic Acids (HAA5) | 2025-01-01 |
| MAPLE HILL PARK | Nitrate | 2025-01-01 |
| BEACHWOOD WATER COMPANY | Arsenic | 2025-01-01 |
| SIERRA COUNTRY CLUB | Total Haloacetic Acids (HAA5) | 2024-10-01 |
| SIERRA COUNTRY CLUB | Total Haloacetic Acids (HAA5) | 2024-10-01 |
| SARATOGA WATER DISTRICT | Arsenic | 2024-10-01 |
| SARATOGA WATER DISTRICT | Arsenic | 2024-10-01 |
| EASTGATE | Arsenic | 2024-10-01 |
| EASTGATE | Arsenic | 2024-10-01 |
| DEVRIES ROAD COMMUNITY ASSN | TTHM | 2024-10-01 |
| DEVRIES ROAD COMMUNITY ASSN | TTHM | 2024-10-01 |
| DEVRIES ROAD COMMUNITY ASSN | Total Haloacetic Acids (HAA5) | 2024-10-01 |
| DEVRIES ROAD COMMUNITY ASSN | Total Haloacetic Acids (HAA5) | 2024-10-01 |
| BEACHWOOD WATER COMPANY | Arsenic | 2024-10-01 |
| BEACHWOOD WATER COMPANY | Arsenic | 2024-10-01 |
| SIERRA COUNTRY CLUB | TTHM | 2024-07-01 |
| SIERRA COUNTRY CLUB | TTHM | 2024-07-01 |
| SIERRA COUNTRY CLUB | Total Haloacetic Acids (HAA5) | 2024-07-01 |
| SIERRA COUNTRY CLUB | Total Haloacetic Acids (HAA5) | 2024-07-01 |
| SARATOGA WATER DISTRICT | Arsenic | 2024-07-01 |
| SARATOGA WATER DISTRICT | Arsenic | 2024-07-01 |
| EASTGATE | Arsenic | 2024-07-01 |
| EASTGATE | Arsenic | 2024-07-01 |
| DEVRIES ROAD COMMUNITY ASSN | TTHM | 2024-07-01 |
| DEVRIES ROAD COMMUNITY ASSN | TTHM | 2024-07-01 |
| DEVRIES ROAD COMMUNITY ASSN | Total Haloacetic Acids (HAA5) | 2024-07-01 |
| DEVRIES ROAD COMMUNITY ASSN | Total Haloacetic Acids (HAA5) | 2024-07-01 |
| GEORGETOWN WATER ASSOCIATION | Arsenic | 2024-07-01 |
| GEORGETOWN WATER ASSOCIATION | Arsenic | 2024-07-01 |
| GEORGETOWN WATER ASSOCIATION | Arsenic | 2024-07-01 |
| BEACHWOOD WATER COMPANY | Arsenic | 2024-07-01 |
| BEACHWOOD WATER COMPANY | Arsenic | 2024-07-01 |
| SUBURBAN MOBILE PARK | TTHM | 2024-04-01 |
| SUBURBAN MOBILE PARK | TTHM | 2024-04-01 |
| SUBURBAN MOBILE PARK | TTHM | 2024-04-01 |
What are Coupeville's health-based records for?
Coupeville's health-based violation records carry 5 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Arsenic | 82 | 6 |
| Tthm | 64 | 10 |
| Total Haloacetic Acids (HAA5) | 46 | 4 |
| Nitrate | 4 | 1 |
| Revised Total Coliform Rule | 3 | 1 |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Coupeville, Washington? ▼
How many water violations does Coupeville have in this EPA extract? ▼
What contaminants were found in Coupeville water? ▼
How many water systems serve Coupeville? ▼
Where does Coupeville get its drinking water? ▼
How does Coupeville compare in Washington?
Of the 365 Washington places with at least one community water system on file, Coupeville ranks #3 by number of systems (98).
Either side of it: Port Orchard (285), Tacoma (129), Yakima (89), Lacey (78)
About This Data
Figures here are the current EPA SDWIS extract joined to the 98 community water systems whose service area lists Coupeville, ranked against the 365 Washington places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.