F0/100

VERNONIA, CITY OF — Water Quality Report 2026

Serving 2,100 people · Oregon

Water Source

Surface Water

County

—

System ID

OR4100922

Violations

233

Contaminant Test Results

EPA Violation History

Violations (last 5yr)

Unresolved

Health-Related

TIER 3Unresolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: August 1, 2025 – August 31, 2025Rule: Total Coliform RuleVerify on EPA.gov

TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2025 – August 22, 2025Enforcement: Resolving — corrective action underway

TIER 3Unresolved

Consumer confidence report — inadequate or unavailable

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2025Rule: Ground Water RuleVerify on EPA.gov

TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2024 – August 6, 2024Enforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to complete routine monitoring

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: August 1, 2023 – August 31, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to complete routine monitoring

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: August 1, 2023 – August 31, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Missed required monitoring deadline

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: August 1, 2023 – August 31, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: August 1, 2023 – August 31, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2023 – October 25, 2023Enforcement: Resolving — corrective action underway

TIER 3Resolved

Consumer confidence report — inadequate or unavailable

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2023 – October 5, 2023Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Missed required monitoring deadline

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: May 1, 2023 – May 31, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Missed required monitoring deadline

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2022 – July 31, 2022Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to complete routine monitoring

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2022 – July 31, 2022Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to complete routine monitoring

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2022 – July 31, 2022Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2022 – July 31, 2022Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Consumer confidence report — inadequate or unavailable

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2022 – November 10, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Consumer confidence report — inadequate or unavailable

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2022 – September 9, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Missed required monitoring deadline

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: March 1, 2022 – March 31, 2022Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to complete routine monitoring

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: March 1, 2022 – March 31, 2022Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to complete routine monitoring

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: March 1, 2022 – March 31, 2022Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: March 1, 2022 – March 31, 2022Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Consumer confidence report — inadequate or unavailable

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2022 – May 6, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Consumer confidence report — inadequate or unavailable

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2021 – November 8, 2021Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Consumer confidence report — inadequate or unavailable

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2021 – October 8, 2021Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Consumer confidence report — inadequate or unavailable

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2021 – December 10, 2021Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

Understanding violation severity

Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.

Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly

Frequently Asked Questions About VERNONIA, CITY OF

Is VERNONIA, CITY OF water safe to drink?

VERNONIA, CITY OF water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 233 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has VERNONIA, CITY OF detected?

1 contaminants were tested in VERNONIA, CITY OF's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.

Does VERNONIA, CITY OF have any EPA violations?

Yes, VERNONIA, CITY OF has 233 EPA violation(s) on record, with the most recent in 2025. Violation types include MON, Other, MR. 3 are health-based violations.

How many people does VERNONIA, CITY OF serve?

VERNONIA, CITY OF serves approximately 2,100 people, Oregon.

What type of water does VERNONIA, CITY OF provide?

VERNONIA, CITY OF sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is OR4100922.

How does VERNONIA, CITY OF compare to other utilities in Oregon?

VERNONIA, CITY OF scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Oregon state page for a full comparison of water systems.