Water Quality: Los Alamos, NM
3 water systems • 25,743 people served
Multiple Health ViolationsWater Quality Summary
Los Alamos is served by 3 public water systems with a combined service population of 25,743 people, and has 264 EPA Safe Drinking Water Act violations on record. Critically, 70 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Los Alamos's violation count is 56% above the national average for New Mexico. Contaminants associated with violations include Chlorine Dioxide, Stage 2 DBP.
Contaminants Found
Can cause anemia in infants and young children; may cause nervous system effects at high levels.
Common source: Water treatment disinfectant used to control taste, odor, and microorganisms
EPA limit: 0.8 mg/L
Trihalomethanes and haloacetic acids that increase cancer risk and may cause adverse reproductive outcomes.
Common source: Chlorine disinfection reacting with natural organic matter in source water
EPA limit: TTHM: 0.080 mg/L; HAA5: 0.060 mg/L
Water Systems Serving Los Alamos
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| LOS ALAMOS MUNICIPAL WATER SYSTEM | NM3500115 | Groundwater | 25,000 | 7 |
| REGINA MDWCA | NM3509523 | Groundwater | 705 | 170 |
| CIELO LINDO | NM3573126 | Groundwater | 38 | 87 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in New Mexico
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.