Garden Valley Water Quality
Idaho
According to EPA SDWIS, Garden Valley, Idaho is served by 8 community water systems covering about 1,241 people. The same extract lists 53 health-based violation records, most recently coded 2456 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Garden Valley, Idaho is delivered through 8 EPA-regulated community water systems serving an estimated 1,241 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 53 violation records across the 8 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 7 distinct EPA contaminant codes: Total Haloacetic Acids (HAA5), Revised Total Coliform Rule, Fluoride, Lead and Copper Rule, Groundwater Rule and 2 others.
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 |
|---|---|---|---|
| SCRIVER WOODS HOMEOWNERS ASSN | 310 | 0 | Clean |
| MOUNTAIN VIEW WATER AND ROAD ASSN | 305 | 6 | Health |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | 250 | 27 | Health |
| VALLEY HI ESTATES | 140 | 0 | Clean |
| MOUNTAIN SHADOWS HOA INC. | 89 | 2 | Health |
| GARDEN VALLEY RANCHETTES HOMEOWNERS | 78 | 18 | Health |
| SHILO RANCH ESTATES | 44 | 0 | Clean |
| SOUTHFORK LANDING INC | 25 | 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 |
|---|---|---|
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Total Haloacetic Acids (HAA5) | 2025-10-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Revised Total Coliform Rule | 2025-05-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Total Haloacetic Acids (HAA5) | 2024-07-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Total Haloacetic Acids (HAA5) | 2024-07-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Total Haloacetic Acids (HAA5) | 2024-07-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Total Haloacetic Acids (HAA5) | 2024-07-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Total Haloacetic Acids (HAA5) | 2024-04-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Total Haloacetic Acids (HAA5) | 2024-04-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Total Haloacetic Acids (HAA5) | 2024-04-01 |
| GARDEN VALLEY RANCHETTES HOMEOWNERS | Fluoride | 2021-10-01 |
| GARDEN VALLEY RANCHETTES HOMEOWNERS | Fluoride | 2021-07-01 |
| GARDEN VALLEY RANCHETTES HOMEOWNERS | Fluoride | 2021-01-01 |
| GARDEN VALLEY RANCHETTES HOMEOWNERS | Fluoride | 2020-10-01 |
| GARDEN VALLEY RANCHETTES HOMEOWNERS | Fluoride | 2020-07-01 |
| GARDEN VALLEY RANCHETTES HOMEOWNERS | Fluoride | 2020-04-01 |
| GARDEN VALLEY RANCHETTES HOMEOWNERS | Fluoride | 2020-01-01 |
| GARDEN VALLEY RANCHETTES HOMEOWNERS | Fluoride | 2019-10-01 |
| GARDEN VALLEY RANCHETTES HOMEOWNERS | Fluoride | 2019-07-01 |
| GARDEN VALLEY RANCHETTES HOMEOWNERS | Fluoride | 2019-04-01 |
| GARDEN VALLEY RANCHETTES HOMEOWNERS | Fluoride | 2019-01-01 |
| GARDEN VALLEY RANCHETTES HOMEOWNERS | Fluoride | 2018-10-01 |
| MOUNTAIN SHADOWS HOA INC. | Lead and Copper Rule | 2018-04-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Total Haloacetic Acids (HAA5) | 2018-01-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Total Haloacetic Acids (HAA5) | 2018-01-01 |
| MOUNTAIN SHADOWS HOA INC. | Lead and Copper Rule | 2017-12-01 |
| MOUNTAIN VIEW WATER AND ROAD ASSN | Groundwater Rule | 2017-10-06 |
| MOUNTAIN VIEW WATER AND ROAD ASSN | Groundwater Rule | 2017-10-06 |
| GARDEN VALLEY RANCHETTES HOMEOWNERS | Fluoride | 2017-10-01 |
| MOUNTAIN VIEW WATER AND ROAD ASSN | Revised Total Coliform Rule | 2017-06-04 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Interim Enhanced Surface Water Treatment Rule | 2017-05-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Interim Enhanced Surface Water Treatment Rule | 2017-05-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Lead and Copper Rule | 2016-10-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Lead and Copper Rule | 2016-10-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Lead and Copper Rule | 2016-09-30 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Lead and Copper Rule | 2016-09-30 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Total Haloacetic Acids (HAA5) | 2016-07-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Total Haloacetic Acids (HAA5) | 2016-07-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Total Haloacetic Acids (HAA5) | 2016-04-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Total Haloacetic Acids (HAA5) | 2016-04-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Total Haloacetic Acids (HAA5) | 2016-01-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Total Haloacetic Acids (HAA5) | 2016-01-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Total Haloacetic Acids (HAA5) | 2015-07-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Total Haloacetic Acids (HAA5) | 2015-07-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Total Haloacetic Acids (HAA5) | 2015-04-01 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | Total Haloacetic Acids (HAA5) | 2015-04-01 |
| GARDEN VALLEY RANCHETTES HOMEOWNERS | Coliform (TCR) | 2013-11-01 |
| GARDEN VALLEY RANCHETTES HOMEOWNERS | Groundwater Rule | 2011-03-17 |
| GARDEN VALLEY RANCHETTES HOMEOWNERS | Groundwater Rule | 2011-03-17 |
| GARDEN VALLEY RANCHETTES HOMEOWNERS | Groundwater Rule | 2011-03-17 |
| GARDEN VALLEY RANCHETTES HOMEOWNERS | Groundwater Rule | 2011-03-17 |
What are Garden Valley's health-based records for?
Garden Valley's health-based violation records carry 7 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 |
|---|---|---|
| Total Haloacetic Acids (HAA5) | 20 | 1 |
| Fluoride | 13 | 1 |
| Groundwater Rule | 9 | 2 |
| Lead and Copper Rule | 6 | 2 |
| Revised Total Coliform Rule | 2 | 2 |
| Interim Enhanced Surface Water Treatment Rule | 2 | 1 |
| Coliform (TCR) | 1 | 1 |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Garden Valley, Idaho? ▼
How many water violations does Garden Valley have in this EPA extract? ▼
What contaminants were found in Garden Valley water? ▼
How many water systems serve Garden Valley? ▼
Where does Garden Valley get its drinking water? ▼
How does Garden Valley compare in Idaho?
Of the 216 Idaho places with at least one community water system on file, Garden Valley ranks #22 by number of systems (8).
Either side of it: Meridian (9), Sagle (9), Emmett (7), Garden City (7)
About This Data
Figures here are the current EPA SDWIS extract joined to the 8 community water systems whose service area lists Garden Valley, 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.