City of Irrigon
EPA ID: OR4100403 · 2,133 people served · 2 ZIP codes
ZipCheckup's reading of EPA records for City of Irrigon (OR4100403): 2 violations recorded with unresolved status in the SDWIS data used. City of Irrigon has 2 EPA violations listed as open in the reviewed federal record - approximately 2,133 people fall within its service area.
Data: EPA SDWIS
Service Area Map
Coverage area for City of Irrigon Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with City of Irrigon have a median household income of $66,498 and about 8,971 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 48% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 100% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
City of Irrigon's water is classified in EPA records as a groundwater source. 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
Comparable Water Systems
Similar-sized systems in Oregon
System Overview
City of Irrigon, (EPA ID: OR4100403) is a community water system in Oregon that serves approximately 2,133 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Violation History
Status breakdown for accepted records with record years 2021-2026: 2 resolved, 0 archived, 0 addressed, and 2 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 |
|---|---|---|---|
| October 1, 2025 | Lead and Copper Rule | Non-health-based | Unaddressed (current) |
| July 1, 2025 | Consumer Confidence Rule | Non-health-based | Resolved |
| October 13, 2024 | E. COLI | Non-health-based | Unaddressed (current) |
| July 1, 2023 | Consumer Confidence Rule | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Consumer Confidence Rule | Other (notice or report rule) | 2 | No |
| E. COLI | Monitoring & Reporting | 1 | No |
| Lead and Copper Rule | Monitoring & Reporting | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.004 mg/L | No | 2025-12-31 |
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
2 of 2 ZIP records with known zones are in EPA Radon Zone 2.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
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.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for City of Irrigon (OR4100403) on EPA.gov.
Frequently Asked Questions
Is City of Irrigon water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 2 current noncompliance records and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.
How many people does City of Irrigon serve?
City of Irrigon serves approximately 2,133 people across 2 ZIP codes in Oregon.
Where does City of Irrigon get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). City of Irrigon (OR): 4 EPA Violations. https://zipcheckup.com/water-system/or4100403/
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author = {{ZipCheckup}},
title = {{City of Irrigon (OR): 4 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/or4100403/}
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What You Can Do
Test your water
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Check your specific ZIP code
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Contact your utility
City of Irrigon (EPA ID: OR4100403) - request the latest Consumer Confidence Report or ask about specific contaminants.