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New Mexico Tap Water Quality Report

Water quality grades, lead levels, and violation data for all 428 ZIP codes in New Mexico

ZIP Codes

428

Health Violations (5yr)

1,299

Avg Safety Score

61.5/100

High Lead Risk ZIPs

44.2%

Overview: Drinking Water in New Mexico

The tap water quality in New Mexico currently sits near the national average, registering a composite safety score of 61.5/100 across 428 monitored ZIP codes. While a significant portion of the state maintains adequate water quality and full compliance with federal standards, 8% of ZIP codes in New Mexico have received a failing grade due to recent compliance issues. Monitoring data from the EPA indicates that while the majority of residents receive safe tap water, localized issues remain a challenge for several municipal systems.

The state's water infrastructure has experienced significant compliance hurdles recently, logging a staggering 1,299 health-based violations over the past 5-year monitoring window out of 13,426 total violations. When a state registers this volume of health-based violations, it often points to systemic challenges such as aging distribution networks, agricultural runoff affecting groundwater, or underfunded rural water systems. New Mexico Environment Department is responsible for enforcing corrective actions and penalizing systems that repeatedly fail to meet safe drinking water standards.

One of the most pressing concerns for New Mexico residents is the elevated risk of lead exposure. EPA models and historical monitoring indicate that 44.2% of ZIP codes in New Mexico are classified as High or Very High risk for lead. This is frequently associated with older housing stock built before the 1986 federal ban on lead pipes and solder. Residents living in older homes should strongly consider having their tap water independently tested and utilizing a certified NSF/ANSI 53 water filter for drinking and cooking.

Surface Water

23.8%

of ZIP codes

Total Violations

13,426

5-year record

Grade A ZIPs

16

4% of state

Grade F ZIPs

33

8% of state

Water Quality Grade Distribution in New Mexico

How do New Mexico's 428 ZIP codes stack up by water quality grade?

A
16 ZIP codes4%
B
135 ZIP codes32%
C
94 ZIP codes22%
D
150 ZIP codes35%
F
33 ZIP codes8%

Common Drinking Water Contaminants in New Mexico

The following are common regulated contaminants found in New Mexico drinking water based on EPA violation records. Click any contaminant to learn about EPA safety limits and health effects.

Contaminant 0700Stage 2 DBP RuleBariumConsumer Confidence Report RuleHaloacetic Acids (HAA5)Total Trihalomethanes (TTHM)NickelFecal Coliform

Source: EPA Safe Drinking Water Act Maximum Contaminant Level regulations. For the complete list of regulated contaminants and MCLs, see the Water Quality Safety Guide.

Frequently Asked Questions โ€” New Mexico Drinking Water

Is tap water generally safe to drink in New Mexico?+
Yes, for the majority of residents, tap water in New Mexico is treated, heavily regulated, and safe to drink. However, safety varies significantly by location. Statewide, 16 ZIP codes earn an "A" grade for perfect compliance, while 33 earn an "F" due to historical violations. It is essential to search your specific ZIP code above to view the exact compliance record for your local water utility.
What are the biggest water quality issues in New Mexico?+
Based on a 5-year analysis of EPA violation data, the primary water quality challenges in New Mexico include managing 1,299 health-based violations statewide and addressing infrastructure age. Additionally, 44.2% of ZIP codes in the state are rated as having a High or Very High probability of lead exposure risk, which is a key metric residents should monitor.
Who regulates and enforces drinking water standards in New Mexico?+
Drinking water in New Mexico is primarily regulated by New Mexico Environment Department under a primacy agreement with the U.S. Environmental Protection Agency (EPA). The EPA sets the federal baseline standards (Maximum Contaminant Levels) through the Safe Drinking Water Act, while New Mexico Environment Department conducts the day-to-day monitoring, issues compliance orders, and enforces penalties against local water systems that fail to meet these standards.
Where does New Mexico get its drinking water?+
Water sources in New Mexico vary widely by municipality. Statewide, approximately 23.8% of the monitored ZIP codes rely on surface water sources (such as rivers, lakes, and reservoirs), which require extensive filtration and disinfection. The remaining systems primarily rely on groundwater pumped from underground aquifers, which is naturally filtered but can be susceptible to agricultural runoff or naturally occurring minerals.
How do I find the official water quality report for my home in New Mexico?+
You can enter your ZIP code in our search box above for a detailed, easy-to-read report based on EPA data. Furthermore, your local water utility is required by federal law to distribute an annual Consumer Confidence Report (CCR) by July 1 of each year. You can contact your utility directly to request this document, which outlines exact contaminant measurements from the previous year.
View All 428 ZIP Codes in New Mexico

Browse EPA water quality data for every monitored ZIP code. For faster results, use the search bar above.

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+ 128 more ZIP codes โ€” please search by city above