City of Prineville
EPA ID: OR4100682 ยท 11,000 people served ยท 1 ZIP code
ZipCheckup's reading of EPA SDWIS for City of Prineville (OR4100682): 76 EPA violations in the last five years. Five years tracked: City of Prineville had 76 violations, all cleared, 11,000 served.
Data: EPA SDWIS
Service Area Map
Coverage area for City of Prineville Source: EPA SDWIS service area boundaries.
Service area boundary - Grade C
Service Area Demographics
The City of Prineville serves a community with a median household income of $76,698 and an estimated 22,469 residents across its service area. Approximately 46% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 75% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
๐ง Where Does Your Water Come From?
City of Prineville's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Infrastructure Risk
Detected Contaminants
How City of Prineville compares to EPA limits
What This Means For You
PFOA at 1 mg/L exceeds the EPA maximum of 0.000004 mg/L.
PFNA at 1 mg/L exceeds the EPA maximum of 0.00001 mg/L.
Contaminant 2015 at 1 mg/L exceeds the EPA maximum of 0.0005 mg/L. Probable carcinogen; liver & thyroid damage, immune suppression. Consider granular activated carbon (GAC) filtration.
Chlorodibromomethane at 1 mg/L exceeds the EPA maximum of 0.002 mg/L. Liver cancer, brain cancer (known carcinogen). Consider granular activated carbon (GAC) filtration.
Atrazine at 1 mg/L exceeds the EPA maximum of 0.003 mg/L. Endocrine disruption, cardiovascular & reproductive effects. Consider granular activated carbon (GAC) filtration.
Contaminant 2015 was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter โComparable Water Systems
Similar-sized systems in Oregon
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
City of Prineville, (EPA ID: OR4100682) is a community water system in Oregon that serves approximately 11,000 people from groundwater sources.
This system serves ZIP code 97754 in Prineville.
ZIP-Area Home Safety Context: C (67/100)
This is the average Home Safety Score for 1 of 1 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.
Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.
Violation History
Status breakdown for accepted records with record years 2021-2026: 75 resolved, 1 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| June 1, 2025 | Contaminant 3028 | Non-health-based | Resolved |
| January 1, 2025 | Contaminant 3028 | Non-health-based | Resolved |
| January 1, 2025 | Contaminant 3028 | Non-health-based | Resolved |
| January 1, 2025 | Contaminant 3028 | Non-health-based | Resolved |
| January 1, 2025 | Contaminant 3028 | Non-health-based | Resolved |
| January 1, 2025 | Contaminant 3028 | Non-health-based | Resolved |
| January 1, 2025 | Contaminant 3028 | Non-health-based | Resolved |
| January 1, 2025 | Contaminant 3028 | Non-health-based | Resolved |
| January 1, 2025 | Contaminant 3028 | Non-health-based | Resolved |
| January 1, 2025 | Contaminant 3028 | Non-health-based | Resolved |
| January 1, 2025 | Contaminant 3028 | Non-health-based | Resolved |
| January 1, 2025 | Contaminant 3028 | Non-health-based | Resolved |
| January 1, 2025 | Contaminant 3028 | Non-health-based | Resolved |
| January 1, 2025 | Contaminant 3028 | Non-health-based | Resolved |
| January 1, 2025 | Contaminant 3028 | Non-health-based | Archived |
| January 1, 2024 | Contaminant 3028 | Non-health-based | Resolved |
| January 1, 2024 | Contaminant 3028 | Non-health-based | Resolved |
| January 1, 2024 | PFOA | Non-health-based | Resolved |
| January 1, 2024 | PFNA | Non-health-based | Resolved |
| January 1, 2024 | Monochloroacetic Acid | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Contaminant 3028 | Other Violation | 17 | No |
| Lead | Inorganic | 2 | No |
| Gross Alpha | Radionuclides | 2 | No |
| Combined Radium | Radionuclides | 2 | No |
| Contaminant 2005 | Other Violation | 1 | No |
| Contaminant 2010 | Other Violation | 1 | No |
| Contaminant 2015 | Other Violation | 1 | No |
| Contaminant 2020 | Other Violation | 1 | No |
| Contaminant 2031 | Other Violation | 1 | No |
| Contaminant 2032 | Other Violation | 1 | No |
| Contaminant 2033 | Other Violation | 1 | No |
| Contaminant 2034 | Other Violation | 1 | No |
| Contaminant 2035 | Other Violation | 1 | No |
| Contaminant 2036 | Other Violation | 1 | No |
| Contaminant 2037 | Other Violation | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0021 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Need help with your water quality?
Typical cost: Water test: typically $20โ$50 (DIY kit) ยท Professional inspection: $150โ$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking โ this helps flush lead from your pipes.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by OR or modeled from parcel and building-footprint data.
- 97754 - Prineville
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for City of Prineville (OR4100682) on EPA.gov.
Frequently Asked Questions
Is City of Prineville water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for City of Prineville; its 76 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does City of Prineville serve?
City of Prineville serves approximately 11,000 people across 1 ZIP code in Oregon.
Where does City of Prineville get its water?
The primary water source is groundwater.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) โ per-system federal sampling, 2023โ2025. EPA UCMR5 monitoring program โ
How Water Systems Appear in Rankings
Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.
- #27 / 50 Highest Exposure Burden (Oregon)
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). City of Prineville (OR): 76 EPA Violations. https://zipcheckup.com/water-system/or4100682/
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What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter โ
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report โ
Contact your utility
City of Prineville (EPA ID: OR4100682) - request the latest Consumer Confidence Report or ask about specific contaminants.