Pocatello Water Quality
Idaho
According to EPA SDWIS, Pocatello, Idaho is served by 15 community water systems covering about 59,791 people. The same extract lists 14 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 Pocatello, Idaho is delivered through 15 EPA-regulated community water systems serving an estimated 59,791 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 14 violation records across the 15 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, Nitrate, Groundwater Rule, Coliform (TCR). 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 |
|---|---|---|---|
| POCATELLO CITY OF | 58,231 | 3 | Health |
| BIG SKY N. SUBDIVISION | 300 | 1 | Health |
| TYHEE AND S AND N ESTATES WATER ASSN | 300 | 0 | Clean |
| CARIBOU ACRES | 150 | 0 | Clean |
| D AND M WATER ASSN | 142 | 0 | Clean |
| WHITEWATER SUBD | 106 | 1 | Health |
| EQUESTRIAN ESTATES | 88 | 0 | Clean |
| TWIN PINES MOBILE PARK | 86 | 0 | Clean |
| PLEASANT ACRES MOBILE HOME PARK | 85 | 2 | Health |
| WILDHORSE RIDGE SUBD | 85 | 2 | Health |
| VALLEY VIEW ESTATES | 74 | 2 | Health |
| SMITH ROAD WATER USERS ASSN | 58 | 3 | Health |
| SEDERO SUBD | 30 | 0 | Clean |
| SPACE ACRES WATER USERS ASSN | 29 | 0 | Clean |
| MINK CREEK MOUNTAIN ESTATES | 27 | 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 |
|---|---|---|
| WILDHORSE RIDGE SUBD | Revised Total Coliform Rule | 2025-12-01 |
| SMITH ROAD WATER USERS ASSN | Revised Total Coliform Rule | 2025-11-15 |
| WHITEWATER SUBD | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| SMITH ROAD WATER USERS ASSN | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| SMITH ROAD WATER USERS ASSN | Revised Total Coliform Rule | 2022-10-20 |
| POCATELLO CITY OF | Nitrate | 2021-10-01 |
| POCATELLO CITY OF | Nitrate | 2021-10-01 |
| POCATELLO CITY OF | Nitrate | 2021-10-01 |
| VALLEY VIEW ESTATES | Revised Total Coliform Rule | 2019-02-14 |
| VALLEY VIEW ESTATES | Revised Total Coliform Rule | 2019-02-14 |
| PLEASANT ACRES MOBILE HOME PARK | Groundwater Rule | 2017-05-20 |
| PLEASANT ACRES MOBILE HOME PARK | Groundwater Rule | 2017-05-20 |
| WILDHORSE RIDGE SUBD | Coliform (TCR) | 2013-07-01 |
| BIG SKY N. SUBDIVISION | Coliform (TCR) | 2011-01-01 |
What are Pocatello's health-based records for?
Pocatello'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 |
|---|---|---|
| Revised Total Coliform Rule | 5 | 3 |
| Nitrate | 3 | 1 |
| Coliform (TCR) | 2 | 2 |
| Lead and Copper Rule Revisions | 2 | 2 |
| Groundwater Rule | 2 | 1 |
TRI Facilities in Pocatello
| Facility | Total Releases |
|---|---|
| J R Simplot Co Don Sid Ing | 17.7M lbs |
| La Semiconductor Llc. | 31.2K lbs |
| Pocatello Airtanker Base | 10 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Pocatello, Idaho? ▼
How many water violations does Pocatello have in this EPA extract? ▼
What contaminants were found in Pocatello water? ▼
How many water systems serve Pocatello? ▼
Where does Pocatello get its drinking water? ▼
Are there pollution sources near Pocatello? ▼
How does Pocatello compare in Idaho?
Of the 216 Idaho places with at least one community water system on file, Pocatello ranks #9 by number of systems (15).
Either side of it: Athol (19), Eagle (17), Blackfoot (13), Hayden (13)
About This Data
Figures here are the current EPA SDWIS extract joined to the 15 community water systems whose service area lists Pocatello, 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.