F19/100
UNION HILL WATER ASSOCIATION INC — Water Quality Report 2026
Serving 8,720 people · Washington
Water Source
Groundwater
County
—
System ID
WA5390260
Violations
74
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2013.
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 HILL WATER ASSOCIATION INC
Is UNION HILL WATER ASSOCIATION INC water safe to drink?
UNION HILL WATER ASSOCIATION INC water receives a grade of F (19/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 74 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has UNION HILL WATER ASSOCIATION INC detected?
51 contaminants were tested in UNION HILL WATER ASSOCIATION INC's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does UNION HILL WATER ASSOCIATION INC have any EPA violations?
Yes, UNION HILL WATER ASSOCIATION INC has 74 EPA violation(s) on record, with the most recent in 2013. Violation types include Other, MR, MCL. 1 are health-based violations.
How many people does UNION HILL WATER ASSOCIATION INC serve?
UNION HILL WATER ASSOCIATION INC serves approximately 8,720 people, Washington.
What type of water does UNION HILL WATER ASSOCIATION INC provide?
UNION HILL WATER ASSOCIATION INC sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WA5390260.
How does UNION HILL WATER ASSOCIATION INC compare to other utilities in Washington?
UNION HILL WATER ASSOCIATION INC scores 19/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Washington state page for a full comparison of water systems.