Is Las Cruces, NM Tap Water Safe to Drink?
Las Cruces tap water meets federal Safe Drinking Water Act standards but 5 of 5 ZIP codes show detections above EPA health guidelines, primarily for lithium. A certified filter is recommended for households that want an additional layer of protection.
Where Does Las Cruces Get Its Water?
Water in Las Cruces, NM is provided by 5 public water systems: LAS CRUCES MUNICIPAL WATER SYSTEM, MOONGATE WATER SYSTEM, UNIVERSITY ESTATES WATER SYSTEM (LCU), DONA ANA MDWCA and MOONGATE WEST.
How Is Las Cruces Tap Water Treated?
Treated water is disinfected using chloramines and free chlorine. Treatment includes groundwater disinfection.
What's in Las Cruces Tap Water?
The following contaminants were detected most frequently in Las Cruces public water systems. 5 of 5 ZIP codes showed detections above EPA health guidelines.
| Contaminant | Peak detected | EPA guideline | ZIPs detected | Status |
|---|---|---|---|---|
| lithium | 172 µg/L | 10 µg/L | 5 ZIPs | Above guideline |
| PFTrDA | 0.007 µg/L | — | 0 ZIPs | Within guideline |
| 8:2 FTS | 0.005 µg/L | — | 0 ZIPs | Within guideline |
| 11Cl-PF3OUdS | 0.005 µg/L | — | 0 ZIPs | Within guideline |
| HFPO-DA | 0.005 µg/L | — | 0 ZIPs | Within guideline |
Health Risk Profile for Las Cruces
Based on EPA monitoring data, 5 of 5 ZIP codes in Las Cruces have recorded detections above EPA health guidelines. Sensitive populations such as infants, pregnant individuals, and those with weakened immune systems may benefit from an additional layer of protection such as a certified point-of-use filter.
Best Broad-Spectrum Filters for This Water Profile
This city profile includes PFAS detections, chlorine disinfection, and other dissolved contaminants. Reverse osmosis (RO) systems certified under NSF/ANSI 58 provide broad reduction coverage; for PFAS specifically, confirm NSF/ANSI P473 or equivalent PFAS reduction certification.
8-stage tankless RO system certified to NSF/ANSI 58, reduces 1,000+ contaminants including PFAS, lead, arsenic, fluoride, and nitrates.
See recommendations matched to your exact address: choose your ZIP code below.
Frequently Asked Questions about Las Cruces Tap Water
Is Las Cruces tap water safe to drink?
Las Cruces tap water meets Safe Drinking Water Act requirements but 5 of 5 ZIP codes show contaminant levels above EPA health-based guidelines. A certified point-of-use filter adds an extra layer of protection.
What contaminants are in Las Cruces tap water?
The most commonly detected contaminants in Las Cruces water systems include: lithium, PFTrDA, 8:2 FTS. See the ZIP-level reports for exact measurements and EPA guideline comparisons.
Where does Las Cruces get its drinking water?
Las Cruces receives water from 5 public water systems, including LAS CRUCES MUNICIPAL WATER SYSTEM.
Do I need a water filter in Las Cruces?
If your ZIP code is among those with detections above EPA health guidelines, choose a filter certified for the specific contaminants shown in your ZIP report. Reverse osmosis is generally the broadest option for PFAS, lithium, and many other dissolved contaminants.
How often is Las Cruces tap water tested?
Public water systems in Las Cruces are required by the EPA to test for regulated contaminants on schedules ranging from daily (for microbials and disinfectants) to annual or triennial (for many chemical contaminants). Results are published in annual Consumer Confidence Reports (CCRs). The data on this page reflects the most recent available EPA monitoring results, with the latest sample date of 2025-06-18.
Tap water reports by ZIP in Las Cruces
- 88001 - University Park, Las Cruces tap water report Higher concern
- 88005 - Mesilla, Las Cruces tap water report Higher concern
- 88007 - Radium Springs, Las Cruces tap water report Higher concern
- 88011 - White Sands CCD, Las Cruces tap water report Higher concern
- 88012 - Doña Ana-Hill CCD, Las Cruces tap water report Higher concern
Water utilities serving Las Cruces, NM
Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.
- LAS CRUCES MUNICIPAL WATER SYSTEMAction advised
- MOONGATE WATER SYSTEMAction advised
- MOONGATE WESTAction advised
- UNIVERSITY ESTATES WATER SYSTEM (LCU)Action advised
Also covers / overlaps with
- Las Cruces CCD, NM · Township
- Doña Ana-Hill CCD, NM · Township
- Fairacres CCD, NM · Township
- Hatch CCD, NM · Township
- Mesilla, NM
- Picacho Hills, NM · CDP
- Radium Springs, NM · CDP
- San Pablo, NM · CDP
- San Ysidro, NM · CDP
- University Park, NM · CDP
- White Sands CCD, NM · Township