D28/100
Carson-Huerfano NTUA — Water Quality Report 2026
Serving 1,142 people · Arizona
Water Source
Purchased Surface Water
County
—
System ID
NN3503063
Violations
69
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2020.
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 Carson-Huerfano NTUA
Is Carson-Huerfano NTUA water safe to drink?
Carson-Huerfano NTUA water receives a grade of D (28/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 69 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has Carson-Huerfano NTUA detected?
1 contaminants were tested in Carson-Huerfano NTUA's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does Carson-Huerfano NTUA have any EPA violations?
Yes, Carson-Huerfano NTUA has 69 EPA violation(s) on record, with the most recent in 2020. Violation types include MR.
How many people does Carson-Huerfano NTUA serve?
Carson-Huerfano NTUA serves approximately 1,142 people, Arizona. The system provides water to 1 community: Huerfano.
What type of water does Carson-Huerfano NTUA provide?
Carson-Huerfano NTUA sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is NN3503063.
How does Carson-Huerfano NTUA compare to other utilities in Arizona?
Carson-Huerfano NTUA scores 28/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Arizona state page for a full comparison of water systems.