F0/100
Tsaile-Dine College NTUA — Water Quality Report 2026
Serving 1,190 people · Arizona
Water Source
Groundwater
County
—
System ID
NN0403005
Violations
98
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 Tsaile-Dine College NTUA
Is Tsaile-Dine College NTUA water safe to drink?
Tsaile-Dine College NTUA water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 98 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has Tsaile-Dine College NTUA detected?
1 contaminants were tested in Tsaile-Dine College NTUA's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does Tsaile-Dine College NTUA have any EPA violations?
Yes, Tsaile-Dine College NTUA has 98 EPA violation(s) on record, with the most recent in 2020. Violation types include MR, Other, MCL. 1 are health-based violations.
How many people does Tsaile-Dine College NTUA serve?
Tsaile-Dine College NTUA serves approximately 1,190 people, Arizona. The system provides water to 1 community: Tsaile, Dine College.
What type of water does Tsaile-Dine College NTUA provide?
Tsaile-Dine College NTUA sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is NN0403005.
How does Tsaile-Dine College NTUA compare to other utilities in Arizona?
Tsaile-Dine College NTUA scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Arizona state page for a full comparison of water systems.