C50/100

AURORA, CITY OF — Water Quality Report 2026

Serving 1,133 people · Oregon

Water Source
Groundwater
County
System ID
OR4100067
Violations
43

Contaminant Test Results

1 contaminant above EPA health goals
ContaminantDetectedLimit (MCL)Status
Lead (90th percentile)
0.004 mg/L0.015 mg/LAbove Goal

EPA Violation History

7

Violations (last 5yr)

0

Unresolved

0

Health-Related

TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2025 – July 24, 2025Enforcement: Resolving — corrective action underway
TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2024 – April 24, 2025Enforcement: Resolving — corrective action underway
TIER 3Resolved

Monitoring / Reporting Violation

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

When: January 1, 2024 – December 31, 2024Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Surface water treatment technique failure

When: October 1, 2023 – January 31, 2024Enforcement: Resolving — corrective action underway
TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2023 – April 24, 2025Enforcement: Resolving — corrective action underway
TIER 3Resolved

Exceeded the MCL for disinfection byproducts

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

When: January 1, 2023 – March 31, 2023Enforcement: Resolving — corrective action underway
TIER 3Resolved

Exceeded the MCL for disinfection byproducts

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

When: January 1, 2022 – March 31, 2022Enforcement: 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 AURORA, CITY OF

Is AURORA, CITY OF water safe to drink?

AURORA, CITY OF water receives a grade of C (50/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 43 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has AURORA, CITY OF detected?

1 contaminants were tested in AURORA, CITY OF's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).

Does AURORA, CITY OF have any EPA violations?

Yes, AURORA, CITY OF has 43 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR, MCL. 1 are health-based violations.

How many people does AURORA, CITY OF serve?

AURORA, CITY OF serves approximately 1,133 people, Oregon.

What type of water does AURORA, CITY OF provide?

AURORA, CITY OF sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is OR4100067.

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

AURORA, CITY OF scores 50/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Oregon state page for a full comparison of water systems.