LAS CRUCES, New Mexico Tap Water Quality

135,925 people served · 20 water systems

Failing

LAS CRUCES, New Mexico is a mid-sized community with 135,925 residents served by a network of 20 public water systems. Water service covers ZIP codes 88001, 88003, 88004, 88005, 88007, 88011, and 1 more.

LAS CRUCES has accumulated a significant number of EPA health-based violations. Reviewing the contaminants involved, requesting your utility's Consumer Confidence Report, and using certified point-of-use filtration is strongly advisable.

EPA reporting identifies Coliform Bacteria, Lead, and Coliform Bacteria among the regulated contaminants associated with LAS CRUCES's recent health-based violations. Each contaminant has different sources, health implications, and recommended mitigation steps — links to the full EPA reference for each are listed alongside the violation history below.

Last updated: 2026-05-18 · Source: EPA SDWIS

Location

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Centered on ZIP-code centroids of water systems serving this city.

ZIP Codes Served

88001 88003 88004 88005 88007 88011 88012

Health-Based Violations (Last 5 Years)

EPA Maximum Contaminant Level exceedances reported by water systems serving LAS CRUCES. Each entry explains the contaminant, the health risk, and recommended precautions, and links to a full guide.

EPA Code 2976

EPA Code 2976 · Maximum Contaminant Level Exceedance

violations

EPA Limit

—

Last Reading

.038 MG/L

First Reported

Oct 2025

Most Recent

Oct 2025

EPA contaminant code 2976. The full EPA reference for this code is available through the SDWIS portal.

Coliform Bacteriamicrobial

EPA Code 8000 · Maximum Contaminant Level Exceedance

violations

EPA Limit

0 per 100 mL presence/absence

Last Reading

—

First Reported

Aug 2022

Most Recent

Mar 2025

What this violation means

Total coliform bacteria are themselves usually harmless, but their presence signals that the water distribution system has a vulnerability — typically a cracked pipe, loss of pressure, or back-siphonage — that could allow disease-causing pathogens to enter. Repeated coliform-positive samples trigger mandatory utility investigation.

Recommended precautions

→If your utility issues a boil-water advisory, boil all drinking and cooking water for at least one minute.
→Use bottled water until the advisory is lifted.
→Ice from icemakers and beverages made before the advisory should be discarded.
→UV light and chlorination both kill coliform bacteria — most home filters do not.

Read the complete guide to Coliform Bacteria

Coliform Bacteriamicrobial

EPA Code 0700 · Treatment Technique Violation

violations

EPA Limit

0 per 100 mL presence/absence

Last Reading

—

First Reported

Feb 2023

Most Recent

Nov 2024

What this violation means

Recommended precautions

→If your utility issues a boil-water advisory, boil all drinking and cooking water for at least one minute.
→Use bottled water until the advisory is lifted.
→Ice from icemakers and beverages made before the advisory should be discarded.
→UV light and chlorination both kill coliform bacteria — most home filters do not.

Read the complete guide to Coliform Bacteria

Leadchemical

EPA Code 5200 · Treatment Technique Violation

violations

EPA Limit

0.015 mg/L

Last Reading

—

First Reported

Oct 2024

Most Recent

Oct 2024

What this violation means

Lead is a potent neurotoxin with no safe exposure level. In drinking water it primarily enters via corroded lead service lines, lead-soldered copper pipes, and brass fixtures. Children under 6 and pregnant women face the highest risk because lead disrupts developing nervous and skeletal systems.

Recommended precautions

→Run cold tap water 30–120 seconds before drinking or cooking, especially after the tap has been unused for hours.
→Never cook with hot tap water — heat increases lead leaching from pipes.
→Use an NSF/ANSI 53 certified filter for lead removal (carbon block or reverse osmosis).
→If you have children, get blood lead levels tested by your pediatrician.

Read the complete guide to Lead

Source: EPA Safe Drinking Water Information System (SDWIS). Health-based violations only. Older violations may have been resolved; check your utility's most recent Consumer Confidence Report for current status.

Water Systems Serving LAS CRUCES

ORGAN VIEW ESTATES

PWSID: NM3510107

92 served

VILLA DEL SOL MOBILE HOME PARK

PWSID: NM3539607

551 served

8 violations

MADRID MHP

PWSID: NM3513307

67 served

8 violations

HACIENDA ACRES WATER SYSTEM (LCU)

PWSID: NM3511507

3,042 served

10 violations

UNIVERSITY ESTATES WATER SYSTEM (LCU)

PWSID: NM3512407

4,526 served

LAS ALTURAS ESTATES (LCU)

PWSID: NM3529107

936 served

LAS CRUCES MUNICIPAL WATER SYSTEM

PWSID: NM3511707

98,175 served

SAN ANDRES ESTATES WATER SYSTEM (LCU)

PWSID: NM3531207

747 served

VISTA REAL MHP

PWSID: NM3541707

124 served

3 violations

WINTERHAVEN MDWC AND SWA

PWSID: NM3555407

147 served

ST JOHNS MHP

PWSID: NM3540007

431 served

15 violations

LEASBURG MDWCA

PWSID: NM3554207

831 served

12 violations

SAN PABLO MDWCA

PWSID: NM3500607

548 served

NEW MEXICO STATE UNIVERSITY

PWSID: NM3528707

24,000 served

CERCADO COURTS

PWSID: NM3510207

99 served

3 violations

ALAMEDA ACRES MHP

PWSID: NM3539307

291 served

8 violations

PICACHO MDWCA

PWSID: NM3545907

847 served

TALAVERA MDWCA

PWSID: NM3577407

166 served

COVERED WAGON MOBILE HOME MANOR

PWSID: NM3540307

100 served

COUNTRY MOBILE MANOR

PWSID: NM3554107

205 served

What Can You Do?

✅ Request your utility's annual Consumer Confidence Report (CCR) — required by law.
✅ Use an NSF-certified water filter if violations involve lead, arsenic, or PFAS.
✅ Run cold water for 30 seconds before drinking if you have older plumbing (reduces lead).
✅ Check back monthly — we update data from the EPA every 30 days.

About this data

This overview reflects EPA SDWIS data published as of 2026-05-18. It covers active Community Water Systems (CWS) that exceeded federal Maximum Contaminant Levels during the past five-year EPA reporting window. For up-to-the-minute information, request a current Consumer Confidence Report from your utility, or review the EPA's public dashboard.

Frequently Asked Questions

Is LAS CRUCES, New Mexico tap water safe to drink?▼

This city's water had numerous EPA violations in the last 5 years. Consider filtered water.

How many EPA violations does LAS CRUCES have?▼

LAS CRUCES has 67 EPA health-based water violations in the last 5 years across 20 water systems serving 135,925 people.

What contaminants have been found in LAS CRUCES water?▼

The following EPA-regulated contaminants have been detected: 0700, 5200, 8000, 2976. View details about each contaminant, health effects, and recommended precautions above in the violations table.

Should I use a water filter in LAS CRUCES?▼

Using an NSF-certified water filter is recommended if your area has violations involving lead, arsenic, or PFAS. For other contaminants, consult your local water utility. Check the annual Consumer Confidence Report (CCR) for detailed guidance.

What should I do if there are violations in LAS CRUCES?▼

Request your water utility's annual Consumer Confidence Report (CCR), which is required by the EPA. Follow the utility's guidance on boil water advisories. Run cold water for 30 seconds before drinking if you have older plumbing. Use an NSF-certified filter if needed based on your water system's violations.