Public water system record
Las Cruces Municipal Water System
Serves Las Cruces, University Park and Tortugas, Doña Ana County, NM · 98,175 people served
Federal records show 3 health-based violations and 28 monitoring/reporting issues for Las Cruces Municipal Water System in the last ten years. The most serious issue in this window was a resolved Groundwater Rule violation.
System profile
Source water
Groundwater
ZIP
88007
EPA system ID
NM3511707
- Health-based violations, last 10 years
- 3
- Resolved
- 3
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 28
Key facts
- Las Cruces Municipal Water System draws water from 26 wells.
- Record on file since 1999, with 52 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 19,367 unknown out of 36,125 service lines.
Check whether Las Cruces Municipal Water System serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
140 | Jul 16, 2017 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jul 16, 2017 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jul 16, 2017 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
E. coli
Monitoring and reporting
|
Nov 8, 2025 | Resolved |
|
Endrin
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
BHC-GAMMA
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Methoxychlor
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Toxaphene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Dalapon
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Diquat
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Endothall
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Glyphosate
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
OXAMYL
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Simazine
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Picloram
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Dinoseb
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Hexachlorocyclopentadiene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Carbofuran
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Atrazine
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
LASSO
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Heptachlor
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Heptachlor epoxide
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
2,4-D
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
2,4,5-TP
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
HEXACHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Pentachlorophenol
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Total Polychlorinated Biphenyls (PCB)
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
ETHYLENE DIBROMIDE
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Chlordane
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
Full record since 1999
EPA's records for Las Cruces Municipal Water System go back to 1999. Before October 19, 2016 they list 52 health-based violations (52 resolved) and 78 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 1 |
| 2000s | 52 | 31 |
| 2010 to October 18, 2016 | 0 | 46 |
| October 19, 2016 to 2019 | 3 | 0 |
| 2020s | 0 | 28 |
Most recent health-based violation before October 19, 2016: Total Coliform, began July 2008, Resolved.
Show all 52 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2008 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.9 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
Oct 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Oct 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Oct 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Oct 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 81 µg/L, federal limit 30 µg/L (2.7 times the limit)
|
Oct 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 33 µg/L, federal limit 30 µg/L (1.1 times the limit)
|
Oct 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 45 µg/L, federal limit 30 µg/L (1.5 times the limit)
|
Oct 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Jul 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Jul 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Jul 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 75 µg/L, federal limit 30 µg/L (2.5 times the limit)
|
Jul 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 31 µg/L, federal limit 30 µg/L (at or just above the limit)
|
Jul 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Jul 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 42 µg/L, federal limit 30 µg/L (1.4 times the limit)
|
Jul 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Apr 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 110 µg/L, federal limit 30 µg/L (3.7 times the limit)
|
Apr 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 34 µg/L, federal limit 30 µg/L (1.1 times the limit)
|
Apr 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 76 µg/L, federal limit 30 µg/L (2.5 times the limit)
|
Apr 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 33 µg/L, federal limit 30 µg/L (1.1 times the limit)
|
Apr 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 92.2 µg/L, federal limit 30 µg/L (3.1 times the limit)
|
Apr 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 47 µg/L, federal limit 30 µg/L (1.6 times the limit)
|
Apr 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Jan 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 0.0843 mg/L, federal limit 0.03 mg/L (2.8 times the limit)
|
Jan 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 0.123 mg/L, federal limit 0.03 mg/L (4.1 times the limit)
|
Jan 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 0.0518 mg/L, federal limit 0.03 mg/L (1.7 times the limit)
|
Jan 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 0.123 mg/L, federal limit 0.03 mg/L (4.1 times the limit)
|
Jan 1, 2006 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 44 µg/L, federal limit 30 µg/L (1.5 times the limit)
|
Oct 1, 2005 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 73 µg/L, federal limit 30 µg/L (2.4 times the limit)
|
Oct 1, 2005 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 95 µg/L, federal limit 30 µg/L (3.2 times the limit)
|
Oct 1, 2005 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 42 µg/L, federal limit 30 µg/L (1.4 times the limit)
|
Oct 1, 2005 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 50 µg/L, federal limit 30 µg/L (1.7 times the limit)
|
Oct 1, 2005 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 0.0523 mg/L, federal limit 0.03 mg/L (1.7 times the limit)
|
Jul 1, 2005 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 0.0356 mg/L, federal limit 0.03 mg/L (1.2 times the limit)
|
Jul 1, 2005 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 0.0444 mg/L, federal limit 0.03 mg/L (1.5 times the limit)
|
Jul 1, 2005 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 0.054 mg/L, federal limit 0.03 mg/L (1.8 times the limit)
|
Jul 1, 2005 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 0.0699 mg/L, federal limit 0.03 mg/L (2.3 times the limit)
|
Jul 1, 2005 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 0.0304 mg/L, federal limit 0.03 mg/L (at or just above the limit)
|
Jul 1, 2005 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 0.052 mg/L, federal limit 0.03 mg/L (1.7 times the limit)
|
Apr 1, 2005 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.03 mg/L (2.7 times the limit)
|
Apr 1, 2005 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 0.033 mg/L, federal limit 0.03 mg/L (1.1 times the limit)
|
Apr 1, 2005 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 0.058 mg/L, federal limit 0.03 mg/L (1.9 times the limit)
|
Apr 1, 2005 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 0.051 mg/L, federal limit 0.03 mg/L (1.7 times the limit)
|
Apr 1, 2005 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 0.038 mg/L, federal limit 0.03 mg/L (1.3 times the limit)
|
Apr 1, 2005 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18.9 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
Jan 1, 2005 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 36 µg/L, federal limit 30 µg/L (1.2 times the limit)
|
Jan 1, 2004 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 57 µg/L, federal limit 30 µg/L (1.9 times the limit)
|
Jan 1, 2004 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 79 µg/L, federal limit 30 µg/L (2.6 times the limit)
|
Jan 1, 2004 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 40 µg/L, federal limit 30 µg/L (1.3 times the limit)
|
Jan 1, 2004 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 70 µg/L, federal limit 30 µg/L (2.3 times the limit)
|
Jan 1, 2004 | Resolved |
2 older violations are not listed here. EPA ECHO has the complete list.
What the violations mean
Groundwater Rule
3 incidentsThe system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).
The utility had to notify customers about each of these violations.
Where the water comes from
Las Cruces Municipal Water System draws water from 26 wells.
Annual water quality report
Las Cruces Municipal Water System must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by New Mexico.
Certified drinking water labs by state EPA guidance for private wells