Prineville Water Quality
Oregon
According to EPA SDWIS, Prineville, Oregon is served by 15 community water systems covering about 13,086 people. The same extract lists 9 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 Prineville, Oregon is delivered through 15 EPA-regulated community water systems serving an estimated 13,086 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 9 violation records across the 15 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 3 distinct EPA contaminant codes: Revised Total Coliform Rule, LEAD AND COPPER RULE REVISIONS, Groundwater 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 Oregon 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 |
|---|---|---|---|
| PRINEVILLE, CITY OF | 11,000 | 0 | Clean |
| OCHOCO WEST WTR & SAN AUTHORITY | 400 | 0 | Clean |
| HIGH DESERT ESTATES | 380 | 3 | Health |
| HIGHLAND SUBDIVISION WD | 335 | 0 | Clean |
| IDLEWAY IMPROVEMENT DISTRICT | 183 | 0 | Clean |
| TERRACE MOBILE PLAZA | 152 | 0 | Clean |
| BARNES BUTTE HOA | 148 | 1 | Health |
| QUAIL VALLEY PARK IMPROV DIST | 110 | 0 | Clean |
| WESTRIDGE SUBDIVISION | 78 | 4 | Health |
| OCHOCO VALLEY HOME IMPROV DIST | 60 | 0 | Clean |
| MCDOUGAL WATER SYSTEM | 60 | 1 | Health |
| DRY CREEK AIRPARK | 58 | 0 | Clean |
| SHOUN CROSSROADS | 41 | 0 | Clean |
| SUNSET HILLS DOMESTIC WATER ASSOCIATION | 41 | 0 | Clean |
| HAPPY HOLLOW WATER COMPANY | 40 | 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 |
|---|---|---|
| MCDOUGAL WATER SYSTEM | Revised Total Coliform Rule | 2025-07-01 |
| BARNES BUTTE HOA | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| HIGH DESERT ESTATES | Revised Total Coliform Rule | 2024-07-01 |
| HIGH DESERT ESTATES | Revised Total Coliform Rule | 2024-07-01 |
| HIGH DESERT ESTATES | Revised Total Coliform Rule | 2024-07-01 |
| WESTRIDGE SUBDIVISION | Groundwater Rule | 2021-05-01 |
| WESTRIDGE SUBDIVISION | Groundwater Rule | 2021-05-01 |
| WESTRIDGE SUBDIVISION | Groundwater Rule | 2016-09-06 |
| WESTRIDGE SUBDIVISION | Revised Total Coliform Rule | 2016-04-01 |
What are Prineville's health-based records for?
Prineville's health-based violation records carry 3 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 |
| Groundwater Rule | 3 | 1 |
| Lead and Copper Rule Revisions | 1 | 1 |
TRI Facilities in Prineville
| Facility | Total Releases |
|---|---|
| Endura Products | 0 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Prineville, Oregon? ▼
How many water violations does Prineville have in this EPA extract? ▼
What contaminants were found in Prineville water? ▼
How many water systems serve Prineville? ▼
Where does Prineville get its drinking water? ▼
Are there pollution sources near Prineville? ▼
How does Prineville compare in Oregon?
Of the 287 Oregon places with at least one community water system on file, Prineville ranks #9 by number of systems (15).
Either side of it: Klamath Falls (15), Medford (15), Redmond (15), Tillamook (15)
About This Data
Figures here are the current EPA SDWIS extract joined to the 15 community water systems whose service area lists Prineville, ranked against the 287 Oregon 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.