A
95

Excellent Water Quality

La Mesa, NM 88044

Dona Ana County · Population served: 11,542 · Data updated March 2026

Water Systems Serving This Area

🌊
LOWER RIO GRANDE PWWA SOUTH VALLEY
Groundwater · Pop. 11,542
PWSID: NM3502407

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
2.4
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

1 detected All below limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFBS30.5 ppt2000 ppt100 pptBelow limit

Water Quality Summary

Understanding Your Water in La Mesa

Tap water quality in La Mesa, New Mexico (88044) receives an overall grade of A (Excellent) with a score of 95 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 27 points above the New Mexico state average of 68. Compared to the national average (75), this area performs significantly better. The area is served by Lower Rio Grande Pwwa South Valley, a groundwater system providing water to approximately 11,542 people. Testing has found elevated levels of Lead that warrant attention. PFAS testing detected 1 compound, all currently below EPA limits. The area has a clean violation record over the past 5 years — a positive indicator of consistent water quality management.

Your Score 95/100 A
vs State 27 pts above New Mexico avg (68)
vs National 20 pts above national avg (75)

What a Grade A Means

A score of 95/100 means the water supply in La Mesa, NM meets or exceeds all EPA standards with minimal issues. Contaminant levels are well within safe limits, and the water system has maintained a strong compliance record. While no water supply is guaranteed perfect at the tap due to household plumbing, this is among the best-scoring areas in the country.

Groundwater: drawn from underground aquifers via wells

Health Information

What These Contaminants Mean for You

⚠️

Lead in Your Water

Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.

Health Effects

Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.

Common Sources

Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.

What You Can Do

If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.

Common Questions

Frequently Asked Questions

Based on EPA data, tap water in La Mesa, New Mexico receives a grade of A (Excellent) with a score of 95/100. This indicates the water meets federal standards and has relatively few concerns. However, individual homes may still have localized issues such as lead from old plumbing.

ZIP code 88044 is served by 1 water system using groundwater sources, providing water to approximately 11,542 people. Groundwater is naturally filtered through rock and soil, often requiring less treatment. However, it can be vulnerable to contamination from underground sources like naturally occurring arsenic, nitrates from agriculture, or PFAS from industrial sites.

Lead was detected at 2.4 ppb in La Mesa, New Mexico. While this is below the EPA action level of 15 ppb, it exceeds the health guideline of 1 ppb recommended by health organizations. Consider a certified lead filter, especially if you have young children.

1 PFAS compound were detected in water serving La Mesa, New Mexico, but all are currently below EPA limits. While levels are within regulatory standards, some health organizations recommend minimizing any PFAS exposure. Activated carbon or reverse osmosis filters can reduce PFAS levels.

Water systems serving La Mesa, New Mexico have zero violations in the last 5 years. This is a positive indicator of consistent regulatory compliance and water quality management.

Based on detected contaminants (lead, PFAS), residents in La Mesa, New Mexico should consider: Reverse osmosis (RO) system — most effective for PFAS, lead, and other contaminants. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

Explore Nearby

Water Quality in Nearby ZIP Codes