C40/100
ALTO LAKES WATER AND SANITATION DISTRICT — Water Quality Report 2026
Serving 2,870 people · New Mexico
Water Source
Groundwater
County
—
System ID
NM3558514
Violations
57
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.006 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2007.
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 ALTO LAKES WATER AND SANITATION DISTRICT
Is ALTO LAKES WATER AND SANITATION DISTRICT water safe to drink?
ALTO LAKES WATER AND SANITATION DISTRICT water receives a grade of C (40/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 57 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has ALTO LAKES WATER AND SANITATION DISTRICT detected?
31 contaminants were tested in ALTO LAKES WATER AND SANITATION DISTRICT's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does ALTO LAKES WATER AND SANITATION DISTRICT have any EPA violations?
Yes, ALTO LAKES WATER AND SANITATION DISTRICT has 57 EPA violation(s) on record, with the most recent in 2007. Violation types include MR, Other.
How many people does ALTO LAKES WATER AND SANITATION DISTRICT serve?
ALTO LAKES WATER AND SANITATION DISTRICT serves approximately 2,870 people, New Mexico. The system provides water to 1 community: Alto.
What type of water does ALTO LAKES WATER AND SANITATION DISTRICT provide?
ALTO LAKES WATER AND SANITATION DISTRICT sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is NM3558514.
How does ALTO LAKES WATER AND SANITATION DISTRICT compare to other utilities in New Mexico?
ALTO LAKES WATER AND SANITATION DISTRICT scores 40/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our New Mexico state page for a full comparison of water systems.