C49/100
UNION, CITY OF — Water Quality Report 2026
Serving 2,162 people · Oregon
Water Source
Groundwater
County
—
System ID
OR4100915
Violations
20
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: October 1, 2023 – November 1, 2023Enforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2023 – November 1, 2023Enforcement: 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 UNION, CITY OF
Is UNION, CITY OF water safe to drink?
UNION, CITY OF water receives a grade of C (49/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 20 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has UNION, CITY OF detected?
1 contaminants were tested in UNION, CITY OF's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does UNION, CITY OF have any EPA violations?
Yes, UNION, CITY OF has 20 EPA violation(s) on record, with the most recent in 2023. Violation types include Other, MON, MCL. 7 are health-based violations.
How many people does UNION, CITY OF serve?
UNION, CITY OF serves approximately 2,162 people, Oregon.
What type of water does UNION, CITY OF provide?
UNION, CITY OF sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is OR4100915.
How does UNION, CITY OF compare to other utilities in Oregon?
UNION, CITY OF scores 49/100 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.