Meridian Water Quality
Idaho
According to EPA SDWIS, Meridian, Idaho is served by 9 community water systems covering about 148,779 people. The same extract lists 26 health-based violation records, most recently coded 8000 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Meridian, Idaho is delivered through 9 EPA-regulated community water systems serving an estimated 148,779 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 26 violation records across the 9 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 5 distinct EPA contaminant codes: Revised Total Coliform Rule, LEAD AND COPPER RULE REVISIONS, Gross Alpha, Excl. Radon and U, Groundwater Rule, Combined Uranium. 3 TRI-reporting industrial facilities are 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 |
|---|---|---|---|
| MERIDIAN WATER DEPT | 147,340 | 1 | Health |
| MEADOWS AT WEST MOUNTAIN | 550 | 4 | Health |
| ARROWROCK RANCH | 250 | 0 | Clean |
| GREENHILLS ESTATES 3 | 200 | 12 | Health |
| TIMBERSTONE HOA | 170 | 0 | Clean |
| TERRACE WATER CORP INC | 84 | 0 | Clean |
| BITTERCREEK MEADOWS SUBDIVISION | 75 | 9 | Health |
| FEATHERVILLE TOWNSITE WATER CORP | 60 | 0 | Clean |
| TURNING WINDS | 50 | 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 |
|---|---|---|
| BITTERCREEK MEADOWS SUBDIVISION | Revised Total Coliform Rule | 2025-08-28 |
| BITTERCREEK MEADOWS SUBDIVISION | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| BITTERCREEK MEADOWS SUBDIVISION | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| MERIDIAN WATER DEPT | Gross Alpha, Excl. Radon and U | 2023-07-01 |
| BITTERCREEK MEADOWS SUBDIVISION | Groundwater Rule | 2023-06-30 |
| BITTERCREEK MEADOWS SUBDIVISION | Groundwater Rule | 2023-06-30 |
| BITTERCREEK MEADOWS SUBDIVISION | Groundwater Rule | 2023-06-30 |
| BITTERCREEK MEADOWS SUBDIVISION | Groundwater Rule | 2023-06-30 |
| BITTERCREEK MEADOWS SUBDIVISION | Groundwater Rule | 2023-06-30 |
| BITTERCREEK MEADOWS SUBDIVISION | Groundwater Rule | 2023-06-30 |
| MEADOWS AT WEST MOUNTAIN | Groundwater Rule | 2023-01-08 |
| MEADOWS AT WEST MOUNTAIN | Groundwater Rule | 2023-01-08 |
| MEADOWS AT WEST MOUNTAIN | Groundwater Rule | 2023-01-08 |
| MEADOWS AT WEST MOUNTAIN | Groundwater Rule | 2023-01-08 |
| GREENHILLS ESTATES 3 | Combined Uranium | 2016-10-01 |
| GREENHILLS ESTATES 3 | Combined Uranium | 2016-07-01 |
| GREENHILLS ESTATES 3 | Combined Uranium | 2016-04-01 |
| GREENHILLS ESTATES 3 | Combined Uranium | 2016-01-01 |
| GREENHILLS ESTATES 3 | Combined Uranium | 2015-10-01 |
| GREENHILLS ESTATES 3 | Combined Uranium | 2015-07-01 |
| GREENHILLS ESTATES 3 | Combined Uranium | 2015-04-01 |
| GREENHILLS ESTATES 3 | Combined Uranium | 2015-01-01 |
| GREENHILLS ESTATES 3 | Combined Uranium | 2014-10-01 |
| GREENHILLS ESTATES 3 | Combined Uranium | 2014-07-01 |
| GREENHILLS ESTATES 3 | Combined Uranium | 2014-04-01 |
| GREENHILLS ESTATES 3 | Combined Uranium | 2014-01-01 |
What are Meridian's health-based records for?
Meridian'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 |
|---|---|---|
| Combined Uranium | 12 | 1 |
| Groundwater Rule | 10 | 2 |
| Lead and Copper Rule Revisions | 2 | 1 |
| Gross Alpha, Excl. Radon and U | 1 | 1 |
| Revised Total Coliform Rule | 1 | 1 |
TRI Facilities in Meridian
| Facility | Total Releases |
|---|---|
| Fiber Composites LLC | 1.1K lbs |
| Creation Technologies | 4 lbs |
| Basalite | 0 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Meridian, Idaho? ▼
How many water violations does Meridian have in this EPA extract? ▼
What contaminants were found in Meridian water? ▼
How many water systems serve Meridian? ▼
Where does Meridian get its drinking water? ▼
Are there pollution sources near Meridian? ▼
How does Meridian compare in Idaho?
Of the 216 Idaho places with at least one community water system on file, Meridian ranks #20 by number of systems (9).
Either side of it: Ketchum (10), Lewiston (9), Sagle (9), Garden Valley (8)
About This Data
Figures here are the current EPA SDWIS extract joined to the 9 community water systems whose service area lists Meridian, 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.