F3/100
Ganado-Burnside-Cornfield-Steamboat NTUA — Water Quality Report 2026
Serving 3,947 people · Arizona
Water Source
Groundwater
County
—
System ID
NN0403001
Violations
78
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
3
Violations (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Disinfection byproduct treatment technique failure
When: October 1, 2023Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2023 – October 31, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: June 1, 2021 – June 30, 2021Rule: Total Coliform RuleEnforcement: 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 Ganado-Burnside-Cornfield-Steamboat NTUA
Is Ganado-Burnside-Cornfield-Steamboat NTUA water safe to drink?
Ganado-Burnside-Cornfield-Steamboat NTUA water receives a grade of F (3/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 78 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has Ganado-Burnside-Cornfield-Steamboat NTUA detected?
51 contaminants were tested in Ganado-Burnside-Cornfield-Steamboat NTUA's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does Ganado-Burnside-Cornfield-Steamboat NTUA have any EPA violations?
Yes, Ganado-Burnside-Cornfield-Steamboat NTUA has 78 EPA violation(s) on record, with the most recent in 2023. Violation types include Other, MON, MR. 4 are health-based violations.
How many people does Ganado-Burnside-Cornfield-Steamboat NTUA serve?
Ganado-Burnside-Cornfield-Steamboat NTUA serves approximately 3,947 people, Arizona. The system provides water to 1 community: Ganado, Cornfield, Steamboat, Woodspring.
What type of water does Ganado-Burnside-Cornfield-Steamboat NTUA provide?
Ganado-Burnside-Cornfield-Steamboat NTUA sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is NN0403001.
How does Ganado-Burnside-Cornfield-Steamboat NTUA compare to other utilities in Arizona?
Ganado-Burnside-Cornfield-Steamboat NTUA scores 3/100 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.