Preston Water Quality
Idaho
According to EPA SDWIS, Preston, Idaho is served by 11 community water systems covering about 12,992 people. The same extract lists 50 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 Preston, Idaho is delivered through 11 EPA-regulated community water systems serving an estimated 12,992 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 50 violation records across the 11 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 6 distinct EPA contaminant codes: Revised Total Coliform Rule, LEAD AND COPPER RULE REVISIONS, Stage 1 Disinfectants and Disinfection Byproducts Rule, Groundwater Rule, Lead and Copper Rule and 1 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 |
|---|---|---|---|
| PRESTON CITY OF | 5,591 | 9 | Health |
| RICHMOND CITY WATER SYSTEM | 2,967 | 3 | Health |
| WILLARD CITY WATER SYSTEM | 2,036 | 0 | Clean |
| FAIRVIEW WATER DIST | 1,300 | 0 | Clean |
| WHITNEY NASHVILLE WATER WORKS | 403 | 1 | Health |
| BANIDA WATER AND SEWER DIST | 180 | 13 | Health |
| CUB RIVER ACRES | 180 | 7 | Health |
| BIRCH CREEK CULINARY | 120 | 6 | Health |
| PRESTON EASTSIDE WATER CO | 120 | 3 | Health |
| STRAWBERRY MINK CREEK WATER ASSN | 75 | 8 | Health |
| WINDER WATER SYSTEM | 20 | 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 |
|---|---|---|
| BANIDA WATER AND SEWER DIST | Revised Total Coliform Rule | 2025-02-21 |
| BANIDA WATER AND SEWER DIST | Revised Total Coliform Rule | 2025-02-21 |
| BANIDA WATER AND SEWER DIST | Revised Total Coliform Rule | 2025-02-21 |
| BANIDA WATER AND SEWER DIST | Revised Total Coliform Rule | 2025-02-21 |
| BANIDA WATER AND SEWER DIST | Revised Total Coliform Rule | 2025-02-21 |
| PRESTON EASTSIDE WATER CO | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| CUB RIVER ACRES | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| CUB RIVER ACRES | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| PRESTON CITY OF | Revised Total Coliform Rule | 2024-06-01 |
| PRESTON CITY OF | Revised Total Coliform Rule | 2024-06-01 |
| PRESTON CITY OF | Revised Total Coliform Rule | 2024-06-01 |
| PRESTON CITY OF | Revised Total Coliform Rule | 2024-06-01 |
| CUB RIVER ACRES | Revised Total Coliform Rule | 2024-02-01 |
| CUB RIVER ACRES | Revised Total Coliform Rule | 2024-02-01 |
| BANIDA WATER AND SEWER DIST | Revised Total Coliform Rule | 2023-09-21 |
| PRESTON CITY OF | Revised Total Coliform Rule | 2023-06-01 |
| PRESTON CITY OF | Revised Total Coliform Rule | 2023-06-01 |
| PRESTON CITY OF | Revised Total Coliform Rule | 2023-06-01 |
| PRESTON CITY OF | Revised Total Coliform Rule | 2023-06-01 |
| PRESTON CITY OF | Revised Total Coliform Rule | 2023-06-01 |
| BANIDA WATER AND SEWER DIST | Revised Total Coliform Rule | 2023-06-01 |
| BANIDA WATER AND SEWER DIST | Revised Total Coliform Rule | 2023-06-01 |
| BANIDA WATER AND SEWER DIST | Revised Total Coliform Rule | 2023-06-01 |
| CUB RIVER ACRES | Revised Total Coliform Rule | 2023-05-01 |
| CUB RIVER ACRES | Revised Total Coliform Rule | 2023-05-01 |
| CUB RIVER ACRES | Revised Total Coliform Rule | 2023-05-01 |
| BANIDA WATER AND SEWER DIST | Revised Total Coliform Rule | 2023-01-05 |
| BANIDA WATER AND SEWER DIST | Revised Total Coliform Rule | 2023-01-05 |
| BIRCH CREEK CULINARY | Revised Total Coliform Rule | 2022-08-01 |
| BIRCH CREEK CULINARY | Revised Total Coliform Rule | 2022-08-01 |
| STRAWBERRY MINK CREEK WATER ASSN | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2021-07-01 |
| STRAWBERRY MINK CREEK WATER ASSN | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2021-07-01 |
| STRAWBERRY MINK CREEK WATER ASSN | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2021-07-01 |
| PRESTON EASTSIDE WATER CO | Groundwater Rule | 2020-03-18 |
| PRESTON EASTSIDE WATER CO | Groundwater Rule | 2020-03-18 |
| WHITNEY NASHVILLE WATER WORKS | Revised Total Coliform Rule | 2017-04-01 |
| BANIDA WATER AND SEWER DIST | Revised Total Coliform Rule | 2017-03-11 |
| BANIDA WATER AND SEWER DIST | Revised Total Coliform Rule | 2017-03-11 |
| RICHMOND CITY WATER SYSTEM | Lead and Copper Rule | 2015-08-16 |
| RICHMOND CITY WATER SYSTEM | Lead and Copper Rule | 2015-08-16 |
| BIRCH CREEK CULINARY | Coliform (TCR) | 2015-01-01 |
| STRAWBERRY MINK CREEK WATER ASSN | Groundwater Rule | 2012-04-30 |
| STRAWBERRY MINK CREEK WATER ASSN | Groundwater Rule | 2012-04-30 |
| STRAWBERRY MINK CREEK WATER ASSN | Groundwater Rule | 2012-04-30 |
| STRAWBERRY MINK CREEK WATER ASSN | Groundwater Rule | 2012-04-30 |
| STRAWBERRY MINK CREEK WATER ASSN | Groundwater Rule | 2012-04-30 |
| BIRCH CREEK CULINARY | Groundwater Rule | 2012-04-30 |
| BIRCH CREEK CULINARY | Groundwater Rule | 2012-04-30 |
| BIRCH CREEK CULINARY | Groundwater Rule | 2012-04-30 |
| RICHMOND CITY WATER SYSTEM | Groundwater Rule | 2011-10-08 |
What are Preston's health-based records for?
Preston's health-based violation records carry 6 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 |
|---|---|---|
| Revised Total Coliform Rule | 30 | 5 |
| Groundwater Rule | 11 | 4 |
| Lead and Copper Rule Revisions | 3 | 2 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | 3 | 1 |
| Lead and Copper Rule | 2 | 1 |
| Coliform (TCR) | 1 | 1 |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Preston, Idaho? ▼
How many water violations does Preston have in this EPA extract? ▼
What contaminants were found in Preston water? ▼
How many water systems serve Preston? ▼
Where does Preston get its drinking water? ▼
How does Preston compare in Idaho?
Of the 216 Idaho places with at least one community water system on file, Preston ranks #16 by number of systems (11).
Either side of it: Post Falls (12), Bonners Ferry (11), Rigby (11), Ketchum (10)
About This Data
Figures here are the current EPA SDWIS extract joined to the 11 community water systems whose service area lists Preston, 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.