Coeur D Alene Water Quality
Idaho
According to EPA SDWIS, Coeur D Alene, Idaho is served by 12 community water systems covering about 56,555 people. The same extract lists 38 health-based violation records, most recently coded 1005 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Coeur D Alene, Idaho is delivered through 12 EPA-regulated community water systems serving an estimated 56,555 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 38 violation records across the 12 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 4 distinct EPA contaminant codes: Arsenic, Revised Total Coliform Rule, Surface Water Treatment Rule, Interim Enhanced Surface Water Treatment Rule. 1 TRI-reporting industrial facility is also located within the city limits.
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 Idaho 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 |
|---|---|---|---|
| COEUR D ALENE CITY OF | 54,115 | 0 | Clean |
| EMERALD ESTATES WATER ASSN INC | 495 | 0 | Clean |
| LEISURE PARK | 480 | 0 | Clean |
| HARBOR VIEW ESTATES WATER & SEWER DIST | 355 | 0 | Clean |
| LOST CREEK ESTATES WATER | 277 | 0 | Clean |
| WOODLAND SHORES WATER AND SEWER ASSN | 210 | 9 | Health |
| SYRINGA WATER AND SEWER | 203 | 0 | Clean |
| KIDD ISLAND BAY WATER USERS | 153 | 0 | Clean |
| WALKING HORSE RANCH ESTATES | 95 | 0 | Clean |
| MORRISON ESTATES HOMEOWNER WATER ASSN | 80 | 0 | Clean |
| RIDGE AT SUN UP BAY WATER SYSTEM | 55 | 0 | Clean |
| FERNAN ESTATES CORPORATION | 37 | 29 | Health |
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 |
|---|---|---|
| FERNAN ESTATES CORPORATION | Arsenic | 2025-10-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2025-07-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2025-07-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2025-04-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2025-04-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2025-01-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2025-01-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2024-10-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2024-10-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2024-10-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2024-07-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2024-07-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2024-07-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2024-01-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2024-01-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2024-01-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2023-10-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2023-10-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2023-10-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2023-07-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2023-07-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2023-07-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2021-01-01 |
| FERNAN ESTATES CORPORATION | Revised Total Coliform Rule | 2020-12-13 |
| FERNAN ESTATES CORPORATION | Arsenic | 2020-10-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2020-07-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2020-04-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2018-07-01 |
| WOODLAND SHORES WATER AND SEWER ASSN | Surface Water Treatment Rule | 2018-06-01 |
| WOODLAND SHORES WATER AND SEWER ASSN | Surface Water Treatment Rule | 2018-06-01 |
| WOODLAND SHORES WATER AND SEWER ASSN | Surface Water Treatment Rule | 2018-06-01 |
| FERNAN ESTATES CORPORATION | Arsenic | 2018-04-01 |
| WOODLAND SHORES WATER AND SEWER ASSN | Interim Enhanced Surface Water Treatment Rule | 2016-05-01 |
| WOODLAND SHORES WATER AND SEWER ASSN | Interim Enhanced Surface Water Treatment Rule | 2016-05-01 |
| WOODLAND SHORES WATER AND SEWER ASSN | Interim Enhanced Surface Water Treatment Rule | 2016-05-01 |
| WOODLAND SHORES WATER AND SEWER ASSN | Surface Water Treatment Rule | 2016-05-01 |
| WOODLAND SHORES WATER AND SEWER ASSN | Surface Water Treatment Rule | 2016-05-01 |
| WOODLAND SHORES WATER AND SEWER ASSN | Surface Water Treatment Rule | 2016-05-01 |
What are Coeur D Alene's health-based records for?
Coeur D Alene's health-based violation records carry 4 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 | 28 | 1 |
| Surface Water Treatment Rule | 6 | 1 |
| Interim Enhanced Surface Water Treatment Rule | 3 | 1 |
| Revised Total Coliform Rule | 1 | 1 |
TRI Facilities in Coeur D Alene
| Facility | Total Releases |
|---|---|
| Advanced Input Devices | 8 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Coeur D Alene, Idaho? ▼
How many water violations does Coeur D Alene have in this EPA extract? ▼
What contaminants were found in Coeur D Alene water? ▼
How many water systems serve Coeur D Alene? ▼
Where does Coeur D Alene get its drinking water? ▼
Are there pollution sources near Coeur D Alene? ▼
How does Coeur D Alene compare in Idaho?
Of the 216 Idaho places with at least one community water system on file, Coeur D Alene ranks #13 by number of systems (12).
Either side of it: Hayden (13), Mountain Home (13), Post Falls (12), Bonners Ferry (11)
About This Data
Figures here are the current EPA SDWIS extract joined to the 12 community water systems whose service area lists Coeur D Alene, ranked against the 216 Idaho 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.